Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| growth rate and body condition in relation to group size in black widow tetras (gymnocorymbus ternetzi) and common goldfish (carassius auratus). | 2006 | 16772504 | |
| deficits in acquisition of spatial learning after dorsomedial telencephalon lesions in goldfish. | acquisition of spatial learning is an important function of mammalian hippocampus. in order to identify the brain areas in teleost fish that are homologous to mammalian hippocampus, the present study examined the effects of lesions in the dorsal area of the caudal telencephalon of goldfish (carassius auratus) on the acquisition of spatial learning. an open-field maze that was similar to the dry version of the morris water maze was used. the task consisted of habituation and postoperative trainin ... | 2006 | 16797738 |
| auditory frequency generalization in the goldfish (carassius auratus). | auditory frequency generalization in the goldfish was studied at five points within the best hearing range through the use of classical respiratory conditioning. each experimental group received single-stimulus conditioning sessions at one of five stimulus frequencies (100, 200, 400, 800, and 1600 hz), and were subsequently tested for generalization at eight neighboring frequencies. all stimuli were presented 30 db above absolute threshold. significant generalization decrements were found for al ... | 1970 | 16811481 |
| temporal discrimination learning of operant feeding in goldfish (carassius auratus). | operant temporal discrimination learning was investigated in goldfish. in the first experiment, there was a fixed daily change in illumination. eight subjects were trained to operate a lever that reinforced each press with food. the period during which responses were reinforced was then progressively reduced until it was 1 hr in every 24. the final 1-hr feeding schedule was maintained over 4 weeks. the feeding period commenced at the same time each day throughout. the food dispensers were then m ... | 1994 | 16812735 |
| [cloning, expression and antibacterial activity of histone h1 and its n-terminal peptide from carassius auratus]. | in order to determine whether h1 histone proteins are associated with innate immune antimicrobial response in goldfish, we extracted the total rna from the hemocytes of goldfish (carassius auratus), designed 3 pairs of primers based on the previous antimicrobial peptide sequences from fish and performed rt-pcr. among 3 obtained-pcr products, we identified a novel histone h1 coding sequence of 576 bp which belongs to the histone h1 family and is 78% homologous with the amino acid sequence of hist ... | 2006 | 16856400 |
| [comparison between biomimetic sampling technique using semipermeable membrane device and bioconcentration in caged fish for polycyclic aromatic hydrocarbons]. | semipermeable membrane device (spmd) was recently accepted to estimate the time-integrated concentrations of bioavailable hydrophobic organic compounds (hocs) in a similar manner as lipophilic bioconcentration. however few field researches were carried out to verify the similarities of spmd and fish in concentrating hocs from water. in present work, spmd and caged crucian carps (carassius auratus) were deployed side-by-side at five sites in meiliang bay, taihu lake for 32 days and concentrations ... | 2006 | 16881320 |
| availability of in vitro vitellogenin assay for screening of estrogenic and anti-estrogenic activities of environmental chemicals. | vitellogenin (vtg) protein, vtg mrna, other egg yolk proteins, vitelline envelope proteins and their mrnas are produced in the liver of oviparous species by stimulation of endogenous estrogen and exogenous estrogenic chemicals. the vtg assay based on enzyme-linked immunosorbent assay (elisa) has been widely used for many fish species to screen estrogenic and anti-estrogenic activities of chemicals and sewage effluents using immature fish and/or male fish. in order to reduce the number of fish fo ... | 2006 | 16883298 |
| the innate immune response to grass carp hemorrhagic virus (gchv) in cultured carassius auratus blastulae (cab) cells. | virus infection of mammalian cells activates an innate antiviral immune response characterized by production of interferon (ifn) and the subsequent transcriptional upregulation of ifn-stimulated genes (isgs) by the jak-stat signaling pathway. here, we report that a fish cell line, crucian carp (carassius auratus l.) blastulae embryonic (cab) cells, can produce ifn activity and then form an antiviral state after infection with uv-inactivated grass carp hemorrhagic virus (gchv), a double-stranded ... | 2007 | 16887185 |
| effects of pituitary adenylate cyclase-activating polypeptide and vasoactive intestinal polypeptide on food intake and locomotor activity in the goldfish, carassius auratus. | we investigated the effects of intracerebroventricular (icv) and intraperitoneal (ip) administration of pituitary adenylate cyclase-activating polypeptide (pacap) and vasoactive intestinal polypeptide (vip) on food intake in the goldfish, carassius auratus. cumulative food intake was significantly decreased by icv injection of pacap or vip. similarly, ip administration of pacap or vip induced a significant decrease in food intake. icv injection of pacap or vip also induced a significant decrease ... | 2006 | 16888202 |
| ultraviolet influence on catalase activity and mineral content in eyeballs of gibel carp (carassius auratus gibelio). | uv radiation present in the environment may induce several eye disorders including inflammation and cataract. the aim of this work was to study catalase activity and mg, cu, ca and zn contents in the eyeballs of gibel carp exposed to ecologically relevant doses of uv radiation (0.09 kj/m2 for uv-a and 0.98 kj/m2 for uv-b) simulated in laboratory conditions. ultraviolet exposure resulted in significant reduction of catalase activity in the eyeballs of tested fish. reductions in mg, cu and ca cont ... | 2006 | 16905179 |
| surgical removal of retrobulbar hemangioma in a goldfish (carassius auratus). | the surgical removal of retrobulbar hemangioma is described in a mature fantail goldfish (carassius auratus) with a 6-week history of a swollen right eye. the fish was anesthetized using alfaxalnone at a concentration in the water of 5 mg/l to facilitate fine-needle aspiration and surgical removal of the eye. the fish was treated with enrofloxacin 5 mg intraperitoneally and recovered with major buoyancy deficits that corrected 20 minutes after treatment with methadone at a dose of 0.4 mg intramu ... | 2006 | 16931398 |
| endocrine and milt responses of male crucian carp (carassius carassius l.) to periovulatory females under field conditions. | laboratory studies in domesticated goldfish (carassius auratus) show that, during the preovulatory luteinizing hormone (lh) surge, females release a complex steroidal pheromone that induces in males a rapid increase of plasma lh, which in turn increases strippable milt (sperm and seminal fluid) prior to ovulation and spawning. the objective of this study was to determine if the same phenomenon occurs in a wild congener, the crucian carp (carassius carassius), under field conditions where fish ar ... | 2006 | 16934255 |
| gene expression profiling in the neuroendocrine brain of male goldfish (carassius auratus) exposed to 17alpha-ethinylestradiol. | 17-alpha ethinylestradiol (ee2), a pharmaceutical estrogen, is detectable in water systems worldwide. although studies report on the effects of xenoestrogens in tissues such as liver and gonad, few studies to date have investigated the effects of ee2 in the vertebrate brain at a large scale. the purpose of this study was to develop a goldfish brain-enriched cdna array and use this in conjunction with a mixed tissue carp microarray to study the genomic response to ee2 in the brain. gonad-intact m ... | 2006 | 16954407 |
| swimming performance and energy metabolism of rainbow trout, common carp and gibel carp respond differently to sublethal copper exposure. | we compared the effects of sublethal waterborne copper exposure on swimming performance and respiration rates in rainbow trout, oncorhynchus mykiss, with those in less sensitive cyprinid species such as common carp, cyprinus carpio, and gibel carp, carassius auratus gibelio. these cyprinids are considerably more resistant to cu intoxication, and differ from trout in swimming performance and respiratory behaviour. critical swimming speed (u(crit)), oxygen consumption, plasma ammonia and muscle am ... | 2006 | 16956679 |
| the effect of aromatase inhibitor, fadrozole, on sgnrha stimulated lh secretion in goldfish (carassius auratus) and common carp (cyprinus carpio). | the aromatase inhibitor, fadrozole, was applied to common carp and goldfish in order to examine its ability to increase the spontaneous and sgnrha stimulated lh secretion. first, trials in goldfish in 2003 showed fadrozole's moderate ability to potentiate sgnrha-stimulated lh secretion. however, this ability was much weaker than that obtained with dopamine antagonist, pimozide. there was no ovulation in fadrozole-treated fish. several experiments on goldfish and carp during the two consecutive y ... | 2006 | 16967099 |
| molecular cloning of cdna encoding apc11, a catalytic component of anaphase-promoting-complex (apc/c), from goldfish (carassius auratus), and establishment of in vitro ubiquitinating system. | destruction of cyclin b is required for exit from mitosis and meiosis. a cyclin-degrading system, including anaphase-promoting-complex/cyclosome (apc/c), has been shown to be responsible for cyclin b destruction. here we present the cloning, sequencing, and expression analysis of goldfish (carassius auratus) apc11, which encodes the catalytic component of apc/c from goldfish ovary. the cloned cdna is 348 bp long and encodes 88 amino acids. the deduced amino acid sequence is highly homologous to ... | 2006 | 16971785 |
| neuropeptide y mediates ghrelin-induced feeding in the goldfish, carassius auratus. | intracerebroventricular (icv) and intraperitoneal (ip) administration of n-octanoic acid-modified ghrelin stimulates food intake in the goldfish. we examined the involvement of neuropeptide y (npy) in the orexigenic action of ghrelin using a npy y1-receptor antagonist, bibp-3226. food intake induced by icv or ip injection of ghrelin was suppressed by icv preinjection of bibp-3226 for 1 h. we then examined whether ghrelin affects the expression of npy mrna in the goldfish brain using a real-time ... | 2006 | 16979293 |
| differences in host selection of actinospores of two myxosporeans, myxobolus arcticus and thelohanellus hovorkai. | we investigated the host selection mechanism of actinospore stages of 2 myxosporeans, myxobolus arcticus and thelohanellus hovorkai, infecting masu salmon (oncorhynchus masou) and common carp (cyprinus carpio), respectively. discharge of the polar filaments and sporoplasm release by m. arcticus actinospores occurred within the first 5 min of exposure to skin mucus of masu salmon. the actinospores also reacted to the mucus of nonsusceptible fish, i.e., sockeye salmon (oncorhynchus nerka) and gold ... | 2006 | 16995388 |
| surgical procedure for implanting a radiotelemetry transmitter to monitor ecg, heart rate and body temperature in small carassius auratus and carassius auratus gibelio under laboratory conditions. | radiotelemetry provides an alternative means of obtaining physiological measurements from conscious and freely moving animals, without introducing stress artefacts. a surgical procedure is described for implanting radiotelemetry transmitters to monitor the electrocardiogram (ecg), heart rate (hr) and body temperature (bt) in small goldfish (carassius auratus; 50-100 g) and prussian carp (carassius auratus gibelio; 100 g). this type of transmitter is commonly implanted in freely moving mice. afte ... | 2006 | 17018217 |
| waterborne gemfibrozil challenges the hepatic antioxidant defense system and down-regulates peroxisome proliferator-activated receptor beta (pparbeta) mrna levels in male goldfish (carassius auratus). | the lipid regulator gemfibrozil (gem) is one of many human pharmaceuticals found in the aquatic environment. we previously demonstrated that gem bioconcentrates in blood and reduces plasma testosterone levels in goldfish (carassius auratus). in this study, we address the potential of an environmentally relevant waterborne concentration of gem (1.5 microg/l) to induce oxidative stress in goldfish liver and whether this may be linked to gem acting as a peroxisome proliferator (pp). we also investi ... | 2006 | 17046140 |
| protection of carassius auratus gibelio against infection by aeromonas hydrophila using specific immunoglobulins from hen egg yolk. | specific immunoglobulin (igy) from egg yolk against aeromonas hydrophila was produced by immunization of white leghorn hens with formalin-killed whole cells of a. hydrophila. elisa test using a. hydrophila as the coating antigen revealed that the specific antibody titer started to increase in the egg yolk at the 13th day post-immunization (p/n=2.18), reached the peak at the 56th day (p/n=13.82), and remained at high level until day 133 (p/n=7.03). the antibody was purified by saturated ammonium ... | 2006 | 17048308 |
| investigation of long-term stress induced by several stressors by determination of the concentration of different blood plasma components in a model of prussian carp (carassius auratus gibelio bloch, 1783) and common carp (cyprinus carpio l., 1758). | several compounds (carbohydrates, proteins, hormones, etc.) were used in fish to quantify the level of stress. our investigations focused on two parameters of the blood plasma: plasma glucose and serum/plasma fructosamine (sefa) that has not been tested on fish as yet. experiments were conducted on two fish species. the concentrations of these components were investigated on common carp (cyprinus carpio l., 1758) and on prussian carp (carassius auratus gibelio bloch, 1783) from the gödöllö-isasz ... | 2006 | 17048694 |
| identification of a putative oocyte-specific small nuclear ribonucleoprotein polypeptide c in gibel carp. | previous studies have demonstrated that germinal vesicle of amphibian oocyte contains small nuclear ribonucleoprotein polypeptide c (snrpc). in this study, a putative member of snrpc was identified from carassius auratus gibelio oocyte cdna library. its full-length cdna has an open reading frame of 201 nt for encoding a peptide of 66 aa, a short 5'-utr of 19 nt and a long 3'-utr of 347 nt including a polyadenylation signal and poly- (a) tail, and the deduced amino acid sequence has 47% identity ... | 2007 | 17049898 |
| anatomical and functional recovery of the goldfish (carassius auratus) ear following noise exposure. | fishes can regenerate lateral line and inner ear sensory hair cells that have been lost following exposure to ototoxic antibiotics. however, regenerative capabilities following noise exposure have not been explored in fish. moreover, nothing is known about the functional relationship between hair cell damage and hearing loss, or the time course of morphological versus functional recovery in fishes. this study examines the relationship between hair cell damage and physiological changes in auditor ... | 2006 | 17050834 |
| responses to dipole stimuli of anterior lateral line nerve fibres in goldfish, carassius auratus, under still and running water conditions. | we investigated how fibres in the anterior lateral line nerve of goldfish, carassius auratus, respond to sinusoidal water motions in a background of still or running water. two types of fibres were distinguished: type i fibres, which most likely innervate superficial neuromasts, were stimulated by running water (10 cm s(-1)) while type ii fibres, which most likely innervate canal neuromasts, were not stimulated by running water. the responses of type i fibres to sinusoidal water motions were mas ... | 2007 | 17075719 |
| toxicity of hc orange no. 1 to daphnia magna, zebrafish (brachydanio rerio) embryos, and goldfish (carassius auratus). | hc orange no. 1 (hco1; 2-nitro-4'-hydroxydiphenylamine) (cas no. 54381-08-7) is used as a color additive in hair dyes and can be released into aquatic environments in wastewater. in this paper, the effects of hco1 on aquatic organisms were studied using a battery of toxicological tests. these included measuring immobilization of daphnia magna, inhibition of zebrafish embryo development, and acute lethality in zebrafish and goldfish, which are different species belonging to different trophic leve ... | 2007 | 17084436 |
| correlation of c-start behaviors with neural activity recorded from the hindbrain in free-swimming goldfish (carassius auratus). | startle behaviors in teleost fishes are well suited for investigations of mechanisms of sensorimotor integration because the behavior is quantifiable and much of the underlying circuitry has been identified. the teleost c-start is triggered by an action potential in one of the two mauthner (m) cells. to correlate c-start behavior with electrophysiology, extracellular recordings were obtained from the surface of the medulla oblongata in the hindbrain, close to the m-axons, in freely swimming gold ... | 2006 | 17114411 |
| triploid origin of the gibel carp as revealed by 5s rdna localization and chromosome painting. | 5s ribosomal dna (rdna) was isolated and sequenced from the gibel carp carassius auratus gibelio with 162 chromosomes and crucian carp carassius auratus with 100 chromosomes, and fluorescent probes for chromosome localization were prepared to ascertain the ploidy origin and evolutionary relationship between the two species. using fluorescence in-situ hybridization (fish), major 5s rdna signals were localized to the short arms of three subtelocentric chromosomes in the gibel carp and to the short ... | 2006 | 17115331 |
| investigation of de novo cholesterol synthetic capacity in the gonads of goldfish (carassius auratus) exposed to the phytosterol beta-sitosterol. | total and intra-mitochondrial gonadal cholesterol concentrations are decreased in fish exposed to the phytoestrogen beta-sitosterol (beta-sit). the present study examined the potential for beta-sit to disrupt de novo cholesterol synthesis in the gonads of goldfish exposed to 200 microgram/g beta-sit and 10 microgram/g 17beta-estradiol (e2; estrogenic control) by intra-peritoneal silastic implants for 21 days. the de novo cholesterol synthetic capacity was estimated by incubating gonadal tissue w ... | 2006 | 17118198 |
| mucosal mast cell responses in rats (rattus norvegicus) experimentally infected with centrocestus caninus. | mucosal mast cell (mmc) responses and worm recovery rates in rats experimentally infected with centrocestus caninus were investigated. metacercariae of c. caninus, procured from goldfish, carassius auratus, were orally administered to twenty-five male rats (300 metacercariae each rat). the infected rats were sacrificed on days 3, 7, 14, 21 and 28 post-infection (pi) along with the control rats. worm recovery was performed from each part of small intestine. to investigate mmc, duodenal, jejunal a ... | 2006 | 17120962 |
| cloning and expression analysis of goldfish (carassius auratus l.) prominin. | the integral membrane protein known as prominin was first identified on the apical surface of mouse neural epithelial cells as well as on the surface of human haematopoietic progenitor cells. this report describes a prominin-like sequence and expression analysis of the prominin in the goldfish. the predicted amino acid sequence for goldfish prominin shares all of the hallmark structural characteristics of the prominin family, however the relatedness assessed using the percent amino acid identity ... | 2007 | 17123832 |
| isolation of side population cells from ginbuna carp (carassius auratus langsdorfii) kidney hematopoietic tissues. | side population (sp) cells, characterized by a specific hoechst dye efflux pattern by flow cytometry were isolated from kidney hematopoietic tissues of ginbuna carp (carassius auratus langsdorfii). the hematopoietic activity of sp cells was evaluated by the repopulation and multilineage potential using an in vivo transplant system of ginbuna carp (donor) and ginbuna-goldfish hybrids (recipient). in a flow cytometric (fcm) analysis, a small and distinct population of ginbuna sp cells displayed ef ... | 2007 | 17129605 |
| hydroxyl radical generation and oxidative stress in carassius auratus liver as affected by 2,4,6-trichlorophenol. | with carassius auratus, one of the main economic fish species in eastern china as test material, this paper studied the hydroxyl radical generation and oxidative stress in its liver under the effect of 2,4,6-trichlorophenol (2,4,6-tcp). different doses of 2,4,6-tcp were injected intraperitoneally into the fishes, and the electron paramagnetic resonance (epr) spectra of hepatic free radicals, activities of superoxide dismutase (sod), catalase (cat) and glutathione-s-transferase (gst), levels of r ... | 2007 | 17161446 |
| pcr survey of hox genes in the goldfish carassius auratus auratus. | a tetraploidization event took place in the cyprinid lineage leading to goldfishes about 15 million years ago. a pcr survey for hox genes in the goldfish carassius auratus auratus (actinopterygii: cyprinidae) was performed to assess the consequences of this genome duplication. not surprisingly, the genomic organization of the hox gene clusters of goldfish is similar to that of the closely related zebrafish (danio rerio). however, the goldfish exhibits a much larger number of recent pseudogenes, ... | 2007 | 17171698 |
| comparative studies on histological and ultra-structure of the pituitary of different ploidy level fishes. | the histological and ultra-structure of the pituitary in diploid red crucian carp (carassius auratus red var.), triploid crucian carp and allotetraploid hybrids within and after the breeding season were comparatively studied. the result showed that there were six endocrine cell types in the pituitary of these three kinds of fishes, and there was an obvious difference in cell size among different ploidy level fishes. as for the same type of pituitary cells, the cell size was increased gradually w ... | 2006 | 17172051 |
| accumulation of microcystins in various organs of the freshwater snail sinotaia histrica and three fishes in a temperate lake, the eutrophic lake suwa, japan. | so far, there has been only one study to examine microcystin (mc) contents in various organs of snails in a subtropical chinese lake. in this study, tissue distribution and seasonal dynamics of mc-rr and -lr were investigated in various organs of a freshwater snail (sinotaia histrica) in a temperate eutrophic lake, lake suwa, japan. accumulation of microcystins in some fish was also investigated. there was marked temporal variation in the mc content of various organs of the snail. the digestive ... | 2007 | 17187838 |
| combined effects of herbicides on biomarkers reflecting immune-endocrine interactions in goldfish. immune and antioxidant effects. | goldfish (carassius auratus) were exposed to a mixture of herbicides, namely atrazine, simazine, diuron, and isoproturon (asdi) at a cumulative concentration of 50microg/l for 12 weeks. control fish and exposed fish were sampled at 4, 8 and 12 weeks of exposure to observe the combined impact of herbicides on non-specific and specific mechanisms of immunity and antioxidant defenses. the antioxidant defenses were evaluated in haemopoietic organs and liver. asdi-induced stress was reflected as a si ... | 2007 | 17194491 |
| regulative mechanism of ce3+ relieves dna damage caused by cd2+ in the kidney of silver crucian carp. | the mechanism of cd2+ on the dna cleavage and ce3+ on the dna repair in the kidney of silver crucian carp (carassius auratus gibelio) is investigated by agarose gel electrophoresis methods and assaying biochemical indexes. it proves that cd2+ induces the classical laddering degradation of dna in vivo, but dna cleavage is repaired after injecting with a low ce3+ concentration under various cd2+ concentrations. the dna cleavage caused by cd2+ is the result of the activation of deoxyribonuclease (d ... | 2006 | 17194924 |
| evidence that olfactory sensitivities to calcium and sodium are mediated by different mechanisms in the goldfish carassius auratus. | the current study investigated whether the olfactory sensitivity to ca2+ and na+ is mediated by the same mechanism in the goldfish, a freshwater teleost. the olfactory responses, as assessed by recording the electro-encephalogram (eeg) from the olfactory bulb, to changes in external [ca2+] and to [na+] were recorded in the absence and presence of increasing concentrations of the other ion. low concentrations of na+ (0-1.0mm) had no significant effects on the olfactory response to changes in [ca2 ... | 2007 | 17196333 |
| pharmacological activation of mglu2/3 metabotropic glutamate receptors protects retinal neurons against anoxic damage in the goldfish carassius auratus. | we examined the expression of mglu2/3 metabotropic glutamate receptors in the retina of the goldfish carassius auratus. mglu2/3 receptors were expressed in all retinal layers internal to the photoreceptor layer, particularly in the outer and inner nuclear layers. although the goldfish brain is able to tolerate prolonged periods of anoxia, we examined whether anoxia could induce retinal damage. three hours of anoxia induced in the retina the development of apoptotic cell death, as assessed 48 h l ... | 2007 | 17196590 |
| evaluation of mutagenic activities of leachates in landfill sites by micronucleus test and comet assay using goldfish. | to develop a simple system for monitoring the presence of mutagens/carcinogens in the leachates from landfill sites, we used a micronucleus test and a single cell gel electrophoresis (comet) assay originally developed for mice and rats on goldfish (carassius auratus). the goldfish were exposed for 9 days to the leachate with chemical and biological treatment (treated leachate) or without treatment (raw leachate). the goldfish exposed to several samples died because of the high concentrations of ... | 2007 | 17196875 |
| beta-sitosterol and 17beta-estradiol alter gonadal steroidogenic acute regulatory protein (star) expression in goldfish, carassius auratus. | fish exposed to the phytosterol beta-sitosterol (beta-sit) have decreased circulating hormone and cholesterol concentrations, and decreased gonadal intra-mitochondrial cholesterol pools. the current study examined the potential for beta-sit to alter abundance of the key cholesterol transport protein, steroidogenic acute regulatory (star) protein, which delivers cholesterol to the first and rate-limiting steroidogenic enzyme p450 side chain cleavage (p450(scc)) inside the mitochondria. plasma tes ... | 2007 | 17196966 |
| stimulation effect of lithium on the metabolic activity of liver tissue mitochondria measured by microcalorimetry. | the effect of li(i) on the metabolism of mitochondria isolated from carassius auratus liver tissue was investigated by microcalorimetric method to provide evidence for mitochondria hypothesis of bipolar disorder (bpd) and to explore therapeutic mechanism of drug for treatment of bpd. obvious stimulation induced by li(i) on mitochondria metabolism was reflected by power-time (p-t) curves. the power-time curves of hepatic mitochondria metabolism without li(i) could be divided into four parts: lag ... | 2006 | 17205999 |
| study of goldfish (carassius auratus) growth hormone structure-function relationship by domain swapping. | using goldfish as a model, the structure-function relationship of goldfish growth hormone was studied using the strategy of homologous domain swapping. chimeric mutants were constructed by exchanging homologous regions between goldfish growth hormone (gfgh ii) and goldfish prolactin (gfprl) with their cloned complementary dnas. six mutants, with their domain-swapped, were generated to have different combinations of three target regions, including the helix a, helix d and the large section in bet ... | 2007 | 17215157 |
| thioperamide delays vestibular compensation in goldfish. | unilateral lesion of the vestibular system induces posturo-locomotor deficits that are compensated for with time. drug therapy is currently used to improve the recovery process and to facilitate vestibular compensation. we investigated the effects of thioperamide on functional recovery after unilateral labyrinthectomy in carassius auratus. approximately 24h after surgery, the animals were injected intraperitoneally with thioperamide (15 mg/kg) and saline (1.5 ml/kg). the injections were repeated ... | 2007 | 17234345 |
| the directional hearing abilities of two species of bamboo sharks. | auditory evoked potentials (aeps) were used to measure the directional hearing thresholds of the white-spotted bamboo shark chiloscyllium plagiosum and the brown-banded bamboo shark chiloscyllium punctatum at four frequencies and seven directions, using a shaker table designed to mimic the particle motion component of sound. over most directions and frequencies there were no significant differences in acceleration thresholds, suggesting that the sharks have omni-directional hearing abilities. go ... | 2007 | 17234620 |
| transparency and mottling, a case of mendelian inheritance in the goldfish carassius auratus. | 1928 | 17246559 | |
| relation between the pigmentation and pterin derivatives of chromatophores during development in the normal black and transparent scaled types of goldfish (carassius auratus). | 1960 | 17247991 | |
| interleukin-6 family cytokine m17 induces differentiation and nitric oxide response of goldfish (carassius auratus l.) macrophages. | cytokines belonging to the interleukin-6 (il-6) family function in many biological processes and display a high degree of redundancy within the family. although a number of mrna transcripts from teleost fish that resemble il-6 family cytokines have been identified none have been functionally characterized to confirm their identity. we report on the identification and functional characterization of goldfish m17, a molecule possessing sequence and mrna expression patterns similar to the mammalian ... | 2007 | 17250891 |
| purification, characterization, and cdna cloning of a myofibril-bound serine proteinase from the skeletal muscle of crucian carp (carassius auratus). | a myofibril-bound serine proteinase (mbsp) was highly purified from the skeletal muscle of crucian carp (carasius auratus) by acidic treatment of myofibril solution and chromatographies on q-sepharose and benzamidine-sepharose 6b. mbsp revealed a main protein band of approximately 28 kda on sds-polyacrylamide gel electrophoresis (page) and was particularly inhibited by serine proteinase inhibitors. substrate-specificity analysis revealed that the enzyme specifically cleaved at the carboxyl side ... | 2007 | 17253717 |
| assessing the anti-estrogenic activity of sodium pentachlorophenol in primary cultures of juvenile goldfish (carassius auratus) hepatocytes using vitellogenin as a biomarker. | both pentachlorophenol and 2,3,7,8-tetrachlorodibenzo-p-dioxin (tcdd) had been studied widely because of their probable anti-estrogenic activity. sodium pentachlorophenol (pcp-na), as a industrial product used in many fields, usually contains a trace of tcdd. the aim of this study was to assess the anti-estrogenic effect of pcp-na in juvenile goldfish (carassius auratus) hepatocyte cultures using vitellogenin (vtg) as the biomarker. the id50 of pcp-na was investigated and then a series of concen ... | 2006 | 17294650 |
| bioaccumulation and ros generation in liver of carassius auratus, exposed to phenanthrene. | in the present study, the bioaccumulation and reactive oxygen species (ros) generation were studied after fish (carassius auratus) were exposed to different concentrations (0.01, 0.02, 0.05, 0.07 and 0.1 mg/l) of phenanthrene for 4 days. the accumulation of phenanthrene in liver increased with the exposure concentration (r(2)=0.88). a secondary spin trapping technique was used followed by electron paramagnetic resonance (epr) analysis, to study the ros production. the ros generated in fish liver ... | 2007 | 17300992 |
| homologous regulation of estrogen receptor subtypes in goldfish (carassius auratus). | while considerable information is available on the physiological effects of estrogen, much less is known about the regulation of estrogen receptor (er) subtypes, particularly in non-mammalian vertebrates. using goldfish as primary experimental model, we investigated sex- and tissue-specific homologous regulation of er subtypes (eralpha, erbetai, and erbetaii) by estradiol in vivo, in the liver and gonads. treatment with estradiol, significantly upregulated transcript levels for all three types o ... | 2007 | 17342729 |
| identification and characterization of two homologues of interferon-stimulated gene isg15 in crucian carp. | isg15 is one of the most strongly induced genes upon viral infection, interferon (ifn) stimulation, and lipopolysaccharide (lps) stimulation, and only one copy has been found in mammals so far. here two fish isg15 genes, termed caisg15-1 and caisg15-2, have been cloned and sequenced from uv-inactivated gchv (grass carp haemorrhagic virus)-infected and ifn-produced cab cells (crucian carp carassius auratus blastulae embryonic cells) by suppression subtractive hybridization. the full-length cdna s ... | 2007 | 17350861 |
| the life cycle of chloromyxum auratum (myxozoa) from goldfish, carassius auratus (l.), involves an antonactinomyxon actinospore. | the myxozoan parasite chloromyxum auratumhallett, atkinson, holt, banner & bartholomew, 2006, was shown experimentally to have a two-host life cycle which involved a previously undescribed antonactinomyxon actinospore stage. myxospores obtained from gall bladders of naturally infected feral goldfish, carassius auratus (l.), were used to infect samples of mixed species of oligochaete worms obtained from the same locality as the fish: fern ridge dam, oregon, usa. after some 110 days post-exposure, ... | 2007 | 17352790 |
| catadioptric stereo-vision system for the real-time monitoring of 3d behavior in aquatic animals. | fish species have been used as vertebrate model systems for numerous human diseases. however, a comprehensive monitoring system for continuously tracking the positions of aquatic animals is still lacking. manual or simple automatic methods usually lead to false or incomplete behavioral parameters. in this paper, a video-based 3d system is proposed for monitoring aquatic animals. this system is comprised of a novel catadioptric stereo-vision setup and methods for robust tracking of 3d motion-rela ... | 2007 | 17355885 |
| glutamic acid decarboxylase 65, 67, and gaba-transaminase mrna expression and total enzyme activity in the goldfish (carassius auratus) brain. | gad65 and gad67 are the two major isoforms of the enzyme that converts glutamate into gaba in a single step reaction. despite studies describing gad65 and gad67 mrna expression in the mammalian brain, both gad65 and gad67 mrna expression has not yet been fully described for a non-mammalian vertebrate model. similarly, the expression patterns of gaba-t mrna, the major enzyme involved in metabolizing gaba, have not been described for any vertebrate. in the present study, we utilized non-radioactiv ... | 2007 | 17362888 |
| the identification of heat shock protein genes in goldfish (carassius auratus) and their expression in a complex environment in gaobeidian lake, beijing, china. | the enhanced expression of heat shock proteins (hsps) can be detected in response to high temperatures, as well as to many kinds of stressors, including pollutants. partial cdna sequences encoding hsp30, hsp70, hsp90 beta, and heat shock cognate (hsc) 70, and full-length cdna sequences encoding hsp27, hsp47 and hsp60 were cloned from goldfish (carassius auratus). the expression of these genes was investigated in goldfish inhabiting gaobeidian lake in beijing, china. the water of this lake is mod ... | 2007 | 17368997 |
| cadmium affects the expression of metallothionein (mt) and glutathione peroxidase (gpx) mrna in goldfish, carassius auratus. | cadmium (cd) is a widespread non-essential heavy metal that enters the aquatic environment as a result of natural and human-caused activities, including industrial effluent, mining, and agricultural runoff. in the present study, we investigated time and dose-related effect of cdcl(2) on metallothionein (mt) and glutathione peroxidase (gpx) mrna levels in a number of goldfish tissues, in vivo. basal mt and gpx mrna levels remained unchanged in the tissues tested throughout the experiment. injecti ... | 2007 | 17369103 |
| [cloning and the sequence analysis of the fish glutathione transferase pi gene]. | using rt-pcr method, the glutathione transferase pi cdnas were cloned from cyprinus carpio, hypophthalmichthys molitrix, and carassius auratus. the open reading frames (orfs) from the 3 fishes were 627 bp long (encoding for 208 amino acids) with the initial code atg and the terminal code tga. the sequence similarity was 50% between fish and mammals, 33% between fish and amphibian, and 15% between fish and arthropoda, respectively. the sequence similarity was big among fishes, and the average val ... | 2007 | 17369158 |
| calretinin and s-100 expression in goldfish, carassius auratus (l.), schwannoma. | 2007 | 17394528 | |
| [free radicals in carassius auratus liver: their generation and oxidative stress induced by 2,4,6-trichlorophenol]. | with electron paramagnetic resonance (epr) technique, this paper studied the free radicals generation and oxidative stress in carassius auratus liver after 4, 8, 12, 24 and 72 hours of 2, 4,6-trichlorophenol (2,4,6-tcp) intraperitoneal injection. the results showed that 2,4,6-tcp significantly promoted the generation of free radicals in c. auratus liver. the superoxide dismutase (sod) and glutathione-s-transferase (gst) activities were induced significantly, while catalase (cat) activity was inh ... | 2007 | 17396512 |
| hematological and plasma biochemical responses of crucian carp (carassius auratus) to intraperitoneal injection of extracted microcystins with the possible mechanisms of anemia. | alterations in hematological indices such as decreases in blood cell counts (rbc), hematocrit (ht) and hemoglobin (hb) concentrations are key symptoms of anemia. however, few experiments were conducted to examine changes in hematological indices of fish exposed to microcystins that are believed to be fatal to circulatory systems of vertebrates. an acute toxicological experiment was designed to study hematological changes of crucian carp injected intraperitoneally (i.p.) with extracted microcysti ... | 2007 | 17400268 |
| the effects of gaba agonists on glutamic acid decarboxylase, gaba-transaminase, activin, salmon gonadotrophin-releasing hormone and tyrosine hydroxylase mrna in the goldfish (carassius auratus) neuroendocrine brain. | gaba plays a pivotal role in reproduction by regulating luteinising hormone (lh) release from the anterior pituitary. current evidence indicates that there is a prominent stimulatory effect of gaba on lh release in teleost fish which results from enhanced gonadotrophin-releasing hormone (gnrh) release and decreased dopamine turnover in the brain and pituitary. we hypothesised that there may be additional mechanisms underlying lh release in goldfish and investigated the relative mrna levels of ga ... | 2007 | 17425614 |
| detection of cytogenetic and dna damage in peripheral erythrocytes of goldfish (carassius auratus) exposed to a glyphosate formulation using the micronucleus test and the comet assay. | glyphosate is a widely used broad-spectrum weed control agent. in the present study, an in vivo study on the genotoxic effects of a technical herbicide (roundup) containing isopropylamine salt of glyphosate was carried out on freshwater goldfish carassius auratus. the fish were exposed to three doses of glyphosate formulation (5, 10 and 15 ppm). cyclophosphamide at a single dose of 5 mg/l was used as positive control. analysis of micronuclei, nuclear abnormalities and dna damage were performed o ... | 2007 | 17426049 |
| lipid dynamics in goldfish (carassius auratus) during a period of gonadal recrudescence: effects of beta-sitosterol and 17beta-estradiol exposure. | the potential for contaminants to alter lipid or cholesterol dynamics in fish is rarely investigated and may include critical physiological endpoints that are impacted by exposure to endocrine-active substances. the current study investigated plasma and tissue lipid dynamics over a period of recrudescence in goldfish, while also examining the potential for beta-sitosterol (beta-sit), a phytosterol and 17beta-estradiol (e(2)), an endogenous estrogen, to alter lipid homeostasis. goldfish were expo ... | 2007 | 17428736 |
| effects of long-term alachlor exposure on hepatic antioxidant defense and detoxifying enzyme activities in crucian carp (carassius auratus). | alachlor has been widely used in agriculture all over the world. it is suggested that it may be a carcinogen and also an environmental estrogen. in this paper, the physiological and biochemical perturbations of crucian carp (carassius auratus) exposed to alachlor at different concentrations over 60 days were investigated. the gonadosomatic index (gsi) and hepatosomatic index (hsi) were measured. the activity of hepatic antioxidant defense and detoxifying enzymes, superoxide dismutase (sod), cata ... | 2007 | 17433409 |
| the use of anesthesia during evoked potential audiometry in goldfish (carassius auratus). | auditory-evoked potentials (aeps) have become a widely utilized measure of hearing sensitivity. most investigators use pharmacological paralysis to reduce myogenic noise and immobilize the animal for stable electrical recordings, but additional anesthesia is generally not used because the most commonly available fish anesthetic, the cholinergic antagonist tricaine methanosulfate (ms222), is known to disrupt hair cell and primary afferent physiology. anesthetic agents that do not interfere with a ... | 2007 | 17448451 |
| construction of a recombinant plasmid containing multi-copy cpg motifs and its effects on the innate immune responses of aquatic animals. | bacterial dna and synthetic oligodeoxynucleotides (odns) containing unmethylated cpg dinucleotides (cpg motifs) have been shown to induce potential immune responses. in this study, we designed a recombinant plasmid containing multi-copy cpg motifs, and observed its effects on innate immune responses of fish and prawn. the results showed that such plasmid dna, compared to the vacant vector, can highly induce the activation of head kidney macrophages and the proliferation of peripheral blood leuko ... | 2007 | 17475508 |
| bioaccumulation and ros generation in liver of freshwater fish, goldfish carassius auratus under hc orange no 1 exposure. | hc orange no. 1 (cas no. 54381-08-7, 2-nitro-4'-hydroxydiphenylamine) is used as a color additive in hair dyes. in this study, laboratory experiment was carried out to determine hc orange no. 1 bioaccumulation and oxidative stress in the liver of freshwater fish, goldfish carassius auratus. fish were exposed to different concentrations (0.05, 0.1, 0.2, 0.5, and 1.0 mg/l) of hc orange no. 1 for 10 days, with one group assigned as control. the accumulation of hc orange no. 1 in liver increased wit ... | 2007 | 17497642 |
| kármán vortex street detection by the lateral line. | fish use the lateral line system for prey detection, predator avoidance, schooling behavior, intraspecific communication and spatial orientation. in addition the lateral line may be important for station holding and for the detection of the hydrodynamic trails (vortex streets) generated by swimming fish. we investigated the responses of anterior lateral line nerve fibers of goldfish, carassius auratus, to unidirectional water flow (10 cm s(-1)) and to running water that contained a kármán vortex ... | 2007 | 17503054 |
| direct evidence for interaction between lead ions and kidney dna from silver crucian carp. | a direct interaction of lead (pb) with kidney dna from silver crucian carp (carassius auratus gibelio) has been systematically studied in vitro using multi-techniques, including uv-vis absorption, extended x-ray absorption fine structure, vacuum ultraviolet circular dichroism spectral methods and gel electrophoresis. we find that pb is bound with four oxygen or nitrogen atoms of dna in its fresh shell at the distances of 2.64 a. additionally, pb may bind to the oxygen atom of nucleic acid or nit ... | 2007 | 17517428 |
| effects of partial ablation of the cerebellum on sustained swimming in goldfish. | to investigate the role of the corpus cerebelli in the control of sustained swimming or cruising in goldfish, carassius auratus, we conducted experiments examining the effects of partial ablation of the corpus cerebelli (cc) on swimming performance against constant water flow at various speeds. ten out of 15 cc-ablated fish successfully maintained sustained swimming against water flow even at the highest speed tested (3.0 body lengths per second). this result showed that the cc is not crucial fo ... | 2007 | 17519524 |
| hydrolysis of acetylthiocholine iodide and reactivation of phoxim-inhibited acetylcholinesterase by pralidoxime chloride, obidoxime chloride and trimedoxime. | the hydrolysis of acetylthiocholine iodide (atch) by pralidoxime chloride (2-pam cl), trimedoxime (tmb(4)) and obidoxime chlpride (luh(6)) was studied at ph 5.8-8.0 and incubation temperature from 5 to 40 degrees c in vitro. significant atch hydrolysis by 2-pam cl, tmb(4) and luh(6) was found, with the exceptions of those at ph 7.0, 6.2 and 5.8 at 5 degrees c and those at ph 6.2 and 5.8 at 15 degrees c. the hydrolysis by tmb(4) and luh(6) was significantly stronger than that by 2-pam cl. the hyd ... | 2007 | 17534602 |
| distribution and bioaccumulation of microcystins in water columns: a systematic investigation into the environmental fate and the risks associated with microcystins in meiliang bay, lake taihu. | for the purpose of understanding the environmental fate of microcystins (mcs) and the potential health risks caused by toxic cyanobacterial blooms in lake taihu, a systematic investigation was carried out from february 2005 to january 2006. the distribution of mcs in the water column, and toxin bioaccumulations in aquatic organisms were surveyed. the results suggested that lake taihu is heavily polluted during summer months by toxic cyanobacterial blooms (with a maximum biovolume of 6.7 x 10(8)c ... | 2007 | 17537477 |
| concentrations of pentachlorophenol (pcp) in fish and shrimp in jiangsu province, china. | pentachlorophenol (pcp) concentrations were determined in 55 samples of fish, shrimp, crabs, frogs and turtles collected in jiangsu province and 55 freshwater shrimp samples collected from the huiming fish market, nanjing, china between 2003 and 2004. pcp concentrations ranged from less than the method detection limit (mdl: 0.5 microg/kg ww) to 61 microg/kg ww, with a mean of 5.2 microg/kg ww in 55 samples collected across jiangsu province and a mean of 0.5 microg/kg ww for freshwater shrimp col ... | 2007 | 17537482 |
| chronological observations of intestinal histopathology in rats (rattus norvegicus) infected with centrocestus caninus. | intestinal pathological enzyme activity changes were studied chronologically in rats after centrocestus caninus infection. a single inoculation of 300 metacercariae isolated from the gills of goldfish (carassius auratus), was orally administered to male rats (n = 15). uninfected animals were used as controls (n = 5). at days 3, 7, 14, 21, and 28 post-infection (pi), three infected rats, and one from each control group, were sacrificed. the duodenum, jejunum, and ileum were removed separately and ... | 2006 | 17547056 |
| pcb levels and accumulation patterns in waterbird eggs and in their prey at lake kerkini, a north-eastern mediterranean wetland of international importance. | seven "target" pcb levels were determined and compared in waterbird eggs, in their prey, and in water at lake kerkini, northern greece, to investigate pcb bioaccumulation patterns and to define the best bioindicator of target pcbs for this area. pcbs were analysed from eggs of phalacrocorax carbo, podiceps cristatus, ardea cinerea, egretta garzetta, and nycticorax nycticorax and from prey types alburnus alburnus, rutilus rutilus, lepomis gibbosus. carassius auratus, and rana sp. pcbs analysed we ... | 2007 | 17549546 |
| electrophysiological properties of pituitary cells in primary culture from atlantic cod (gadus morhua). | the aim of the present study was to explore the electrophysiological properties of pituitary cells from atlantic cod (gadus morhua), as a basis for future studies of the signaling pathways involved in the control of pituitary secretion in this species. primary cultures of pituitary cells from maturing atlantic cod were prepared by trypsin treatment and mechanical dispersion. electrophysiological recordings were performed using the perforated patch clamp method. a subpopulation of large cells wer ... | 2007 | 17565196 |
| carassius auratus-originated recombinant histone h1 c-terminal peptide as gene delivery material. | the effective delivery of exogenous genes into eukaryotic cells is important for fundamental and biotechnological research. protein-based gene delivery including histone proteins has recently emerged as a powerful technique for non-viral dna transfer. histones are dna-binding proteins that function in dna packaging and protection. in particular, histone h1 is largely responsible for the stabilization of higher-order chromatin structures. several studies have examined the use of full-length histo ... | 2008 | 17571853 |
| in situ studies on physiological and biochemical responses of four fishes with different trophic levels to toxic cyanobacterial blooms in a large chinese lake. | physiological and biochemical responses of four fishes with different trophic levels to toxic cyanobacterial blooms were studied in a large net cage in meiliang bay, a hypereutrophic region of lake taihu. we sampled four fishes: the phytoplanktivorous hypophthalmichthys molitrix and aristichthys nobilis, the omnivorous carassius auratus, and the carnivorous culter ilishaeformis. alterations of the antioxidant (gsh) and the major antioxidant enzymes (cat, sod, gpx, gst) in livers were monitored m ... | 2007 | 17572463 |
| visual behavior of adult goldfish with regenerating retina. | to determine whether regenerating neural pathways can support visual behavior, adult goldfish (carassius auratus) were injected intraocularly with ouabain and tested for the presence of reflexive visual behaviors (dorsal light reflex and optokinetic nystagmus) and the ability to respond to visual stimuli in a classical conditioning paradigm. all visual behaviors were absent or greatly diminished until 8 to 10 weeks, when retinal layering had returned. at 10 weeks post-ouabain, reflexive behavior ... | 2016 | 17592671 |
| molecular characterization and subcellular localization of carassius auratus interferon regulatory factor-1. | interferon (ifn)-regulatory transcription factor-1 (irf-1) has been studied in mammals and fish, but little is known about the relationship between its gene structure and nuclear localization of irf-1 protein. in this study, a cdna encoding carassius auratus irf-1 (cairf-1) was isolated from an interferon-producing cell line, c. auratus blastulae embryonic (cab) cells, exposed to uv-inactivated grass carp hemorrhagic virus (gchv). the cairf-1 genomic locus exhibits exon-intron arrangements simil ... | 2008 | 17604835 |
| distribution of nadph-diaphorase and nitric oxide synthase reactivity in the central nervous system of the goldfish (carassius auratus). | the nitrergic system has been inferred from cells positive to nicotinamide adenine dinucleotide phosphate diaphorase (nadphd) histochemistry and/or to the neuronal isoform of nitric oxide synthase (nnos) immunohistochemistry in different species of vertebrates. the aim of the present work was to systematically study the distribution of cell producing nitric oxide in the goldfish (carassius auratus) brain. to reach this goal, we firstly studied co-localization for nadphd and nnos techniques and d ... | 2008 | 17616449 |
| molecular cloning and expression analysis of t-bet in ginbuna crucian carp (carassius auratus langsdorfii). | in the adaptive immune system of mammals, naive helper t (th) cells differentiate into th1 or th2 cells. the t-box expressed in t cells (t-bet) is a member of a family of t-box transcription factors that regulates the expression of ifn-gamma and plays a crucial role in th1 cell differentiation and cell-mediated immunity. we cloned and sequenced t-bet cdna for the first time from non-mammalian species, ginbuna crucian carp. ginbuna t-bet was composed of 608 predicted amino acids and showed 41.5% ... | 2008 | 17624433 |
| identification of differentially expressed genes from contaminant and thermal exposed goldfish carassius auratus in gaobeidian lake in beijing, china. | gaobeidian lake, located in beijing, china, derives its water mainly from the effluent of the gaobeidian wastewater treatment plant, which is moderately polluted. additionally, as this water is used as a coolant in the nearby thermal power plant, the water of this lake has an elevated temperature. to screen differential gene expression in gaobeidian lake, suppressive subtractive hybridization (ssh) methodology was performed on rna in goldfish carassius auratus hepatic tissues from the lake, usin ... | 2007 | 17624611 |
| studies on resistance characteristic and cdna sequence conservation of transferrin from crucian carp, carassius auratus. | transferrin (tf) is a kind of non-heme beta-globulin with two iron ions (fe(3+))-binding sites. to prove tf's physiological functions, fe(3+)-proteins, serum iron contents, and total iron-binding capabilities were tested for tfs of crucian carps (carassius auratus) and sliver carps (hypophthalmichthys molitrix). the above results demonstrated that sliver carps shared 1/3 tf alleles with crucian carps; tf of crucian carps had stronger fe(3+)-binding ability and transportation ability in plasma th ... | 2007 | 17646932 |
| using semipermeable membrane devices, bioassays, and chemical analysis for evaluation of bioavailable polycyclic aromatic hydrocarbons in water. | meiliang bay is a sublake of taihu lake and has been polluted by domestic and industrial effluents. as part of a comprehensive risk assessment project in this region, semipermeable membrane devices (spmds) were applied to evaluate the levels and potential toxic potency of polycyclic aromatic hydrocarbons (pahs) in lakewater, in combination with chemical analysis and in vitro bioassay using h4iie rat hepatoma cells. in addition, induction of hepatic ethoxyresorufin-o-deethylase (erod) activity, i ... | 2007 | 17657463 |
| diethyldithiocarbamate injection induces transient oxidative stress in goldfish tissues. | the effects of intraperitoneal injection of diethyldithiocarbamate (ddc) on free radical processes were examined in brain, liver and kidney of goldfish (carassius auratus). levels of oxidatively modified lipids and proteins as well as the activities of antioxidant and associated enzymes were measured. intraperitoneal injection of ddc at a concentration of 0.01 mg/g wet mass decreased sod activities by about 30-50% after 48 and 168 h compared to corresponding sham-injected values. this treatment ... | 2007 | 17662702 |
| altered serum levels of sex steroids and biotransformation enzyme activities by long-term alachlor exposure in crucian carp (carassius auratus). | 2007 | 17668140 | |
| nationwide study of dioxins in the freshwater fish carassius auratus (gibelio) langsdorfii (crucian carp) in japan: concentrations and estimation of source contribution ratios. | we investigated dioxin concentrations in freshwater fish in japan by standardizing species to detect subtle decreasing trends of dioxin concentrations in the future with the reinforcement of regulations. the fish studied were crucian carp (carassius auratus (gibelio) langsdorfii), an omnivorous species. fish and sediments were collected from 14 rivers and lakes located in remote areas, agricultural areas, and small and large cities throughout japan. the total toxic equivalent (teq) dioxin concen ... | 2007 | 17675214 |
| heavy metal distribution in tissues of six fish species included in human diet, inhabiting freshwaters of the nature park "hutovo blato" (bosnia and herzegovina). | the aim of the study was to quantify heavy metal (mercury, lead, cadmium, and arsenic) concentration in tissues (muscles, liver, kidney, gills, and gonads) of six fish species (carp: cyprinus carpio, tench: tinca tinca, pumpkinseed: lepomis gibosus, prussian carp: carassius auratus gibelio, hasselquist: salmo dentex, eel: anguilla anguilla) from the freshwaters of the nature park hutovo blato, bosnia and herzegovina, and determine whether they are potentially harmful for human health if included ... | 2008 | 17687582 |
| tolerance of benzalkonium chloride, formalin, malachite green, and potassium permanganate in goldfish and zebrafish. | to determine tolerance of goldfish and zebrafish to benzalkonium chloride, formalin, malachite green, and potassium permanganate. | 2007 | 17696862 |
| the effect of epinephrine on feeding and motion patterns in goldfish carassius auratus (l.). | the effect of intraperitoneal injections of epinephrine (0.14 and 0.70 mg/kg) on some characteristics of feeding activity (ration and total time of feeding) as well as on motion patterns (time of swimming in group and separately) in juvenile goldfish has been investigated. two-phase (short-term decrease in the first phase, increase in the second one) feeding response under both doses of epinephrine has been revealed. more pronounced effect of epinephrine at the dose of 0.14 mg/kg on the ration a ... | 2007 | 17698382 |
| identification and characterisation of an androgen receptor from zebrafish danio rerio. | androgens play key roles in vertebrate sex differentiation, gonadal differentiation and sexual behaviour. the action of androgens is primarily mediated through androgen receptors (ars). the present study describes the isolation, sequencing and initial characterisation of an androgen receptor from zebrafish danio rerio. the predicted protein of 868 residues has an estimated calculated molecular weight of 96 kda. the amino acid sequence of the zebrafish ar (zfra) shows high homology with other ver ... | 2007 | 17698417 |
| gonadectomy in the goldfish carassius auratus. | 1931 | 17756029 | |
| oxygen-motivated behavior in the goldfish, carassius auratus. | goldfish placed in deoxygenated water learned to interrupt a light beam in order to obtain brief exposure to aerated water. the training procedure brought this behavior under the control of arbitrary visual stimuli. | 1962 | 17770951 |
| the effect of the environmental temperature on the fatty acid composition and on thein vivo incorporation of 1-(14)c-acetate in goldfish (carassius auratus l.). | two-year-old goldfish were adapted to 10c and 35c environmental temperatures during a three-week period, and the fatty acids from triglycerides and certain phospholipids were analyzed by gas-liquid chromatography. over-all unsaturation of the major fatty acids increased with lower temperature in all lipids which were examined although fish maintained at 10c actually had less polyenoic acid in their tissues than did those maintained at 35c.fish acclimated to 10c and 30c were injected with 1-(14)c ... | 1968 | 17805899 |
| perception of illusory surfaces and contours in goldfish. | goldfish (carassius auratus) were trained to discriminate triangles and squares using a two choice procedure. in the first experiment, three goldfish were trained with food reward on a black outline triangle on a white background, while a black outline square was shown for comparison. in transfer tests, a kanizsa triangle and a kanizsa square were presented, perceived by humans as an illusory triangle- or square-shaped surface of slightly higher brightness than the background. the choice behavio ... | 2007 | 17822573 |
| growth factors of lower vertebrates: characterization of goldfish (carassius auratus l.) macrophage colony-stimulating factor-1. | colony-stimulating factor-1 (csf-1) regulates mononuclear cell proliferation, differentiation, and survival. the functions of csf-1 are well documented in mammals; however, little is known about csf-1 biology in lower vertebrates. this is the first report on the identification and functional characterization of a fish csf-1 molecule expressed highly in the spleen and in phorbol 12-myristate 13-acetate-stimulated monocytes. goldfish csf-1 is a 199-amino acid protein that possesses the required cy ... | 2007 | 17827160 |