Publications
| Title | Abstract | Year Filter | PMID(sorted descending) Filter |
|---|
| the influence of environmental temperature and infection route on the immune response of carp (cyprinus carpio) to spring viremia of carp virus (svcv). | carp infected by water route and by injection of svcv developed neutralizing antibodies within 2-8 weeks at water temperatures between 10-20 degrees c. at 10 degrees c svcv persisted 12 weeks in the blood of carp although antibodies were present. immunized carp showed a solid protective immunity to svcv. | 1986 | 3765360 |
| does aeromonas salmonicida affect the immune system of carp, cyprinus carpio l.? | aeromonas salmonicida is a significant bacterial pathogen of cyprinid and salmonid fishes causing the systemic disease furunculosis. several observations led us to believe that a. salmonicida was able to evade or suppress the immune system of the fish: injection of whole bacteria or surface antigens was unsuccessful at protecting fish against lethal challenges; memory did not develop in survivors of sublethal infections; diseased fish often carried other opportunistic bacterial pathogens in addi ... | 1986 | 3765353 |
| blood changes in carp (cyprinus carpio) induced by ulcerative aeromonas salmonicida infections. | only recently aeromonas salmonicida has been recognized as a significant bacterial pathogen in ulcerative disease of cyprinid fish. our attempts to formulate a vaccine based on bacterial surface antigens were unsuccessful in conferring reliable protection against lethal challenge. this lead us to study pathological changes in the humoral defense system during ulcerative a. salmonicida infection in carp. high numbers of opportunist pathogens such as a. hydrophila and pseudomonas sp. were frequent ... | 1986 | 3765352 |
| fish and antibiotics: pharmacokinetics of sulphadimidine in carp (cyprinus carpio). | pharmacokinetics, metabolism and clearance of sulphadimidine (sdm) were studied after a single intraperitoneal injection of sdm in carp at 20 degrees c. sdm was acetylated and hydroxylated to a small extent. the main metabolite was n4-acetyl derivative amounting only 2% of the total drug dose excreted; hydroxylation was less important (0.41% of the dose). the elimination half-life for sdm in carp was 17.5 h. the clearance values for sdm and its metabolites were equivalent. the importance of phar ... | 1986 | 3765347 |
| pronephric leucocytes of cyprinus carpio: isolation, separation and characterization. | since the teleost pronephros is an important source of diverse immunocytes, suspensions of pronephric cells from young adult carp have been characterized. in freshly prepared suspensions, adherent, spreading cells (macrophages?) constituted less than 3% of the total population. granulocytes and lymphocytes were co-dominant (less than 80%) leucocyte types. continuous percoll density gradient centrifugation yielded discrete subpopulations with these rho values and cytological characteristics: frac ... | 1986 | 3765337 |
| protein digestion and amino acid absorption along the intestine of the common carp (cyprinus carpio l.), a stomachless fish: an in vivo study. | protein hydrolysis to peptides and free amino acids and the apparent absorption of amino acids (aaaa) were evaluated in different segments of carp intestine. the aaaa analysed using cr2o3 as a marker indicated that 73.2% of the amino acids were absorbed in the first 20% of the intestinal tract and 5.3 and 21.5, respectively, in the following segments (20% of gut length). except for methionine and histidine, essential free amino acid concentration decreased significantly along the intestine. of t ... | 1986 | 3749594 |
| identification of intergeneric nucleo-cytoplasmic hybrid fish obtained from the combination of carp nucleus and crucian cytoplasm. | 1986 | 3749147 | |
| proportions of mono- and diacetylated forms of alpha msh in individual neurointermediate lobe extracts of cyprinus carpio l. | the proportions of the mono- and diacetylated forms of alpha msh in individual carp neurointermediate lobe (nil) extracts, as assessed by hplc and ria, fluctuate within a narrow range (mono/mono- + diacetyl alpha msh = 3-14%). these results obtained on individuals of different sex and age show that the diacetylated form predominates in the nil of all individuals where it represents in the mean 90% of the acetylated forms. the relatively low fluctuation of the proportions of the acetylated forms ... | 1986 | 3743025 |
| lethal toxicity of cadmium to cyprinus carpio and tilapia aurea. | 1986 | 3742097 | |
| [monoaminergic innervation of the kidney of the carp (cyprinus carpio l.)]. | by means of fluorescent-histochemical method distribution of monoaminergic structures has been studied in the sympatho-adrenal system of the carp (cyprinus carpio l.) mesonephros. catecholaminergic nervous fibers are revealed in the walls of adrenal and venous vessels and glomerular arterioles. in the glomerular capillaries they are not found. in the walls of the venous vessels, besides catecholamine-containing nervous fibers, chromaffin cells with long processes running along the vessel are obs ... | 2013 | 3741162 |
| gap-junctional contacts of luminosity-type horizontal cells in the carp retina: a novel pathway of signal conduction from the cell body to the axon terminal. | l-type horizontal cells (271) of the carp retina were studied with the aid of intracellular injections of lucifer yellow and horseradish peroxidase (hrp). coupling among these cells was revealed by passage of the dye out of the injected cell. thick processes that crossed axons filled with lucifer yellow also contained the stain. these thick processes appear to be the axon terminals of other horizontal cells. serial reconstruction of an axon terminal by electron microscopy revealed two groups of ... | 1986 | 3734163 |
| radioimmunoassays for fish tail neuropeptides: i. development of assay and measurement of immunoreactive urotensin i in catostomus commersoni brain, pituitary, and plasma. | antisera were raised in rabbits using highly purified urotensin i (ui) or ui (4-41) conjugated with high-molecular-weight proteins. antiserum 2u4, at a final dilution of 1:300,000, gave 50% binding to iodinated ui (specific activity 40-120 microci/micrograms). carp (cyprinus carpio) and sucker (catostomus commersoni) ui peptides cross-reacted completely with the antiserum. results from cross-reactivity tests using various tryptic and staphylococcus aureus protease fragments of ui indicated that ... | 1986 | 3724203 |
| galactosyl-binding lectins from the tunicate didemnum candidum. purification and physicochemical characterization. | the plasma of the ascidian didemnum candidum possesses lectin activity directed toward galactosyl moieties. we report the purification by affinity chromatography, the physicochemical properties, amino acid composition, and partial n-terminal amino acid sequence of two galactosyl-binding lectins d. candidum lectins i and ii (dcl-i and dcl-ii) from the plasma of this protochordate species. both lectins were purified by affinity chromatography (on acid-treated sepharose 4b and asialofetuin conjugat ... | 1986 | 3722194 |
| daily changes in blood serum levels of 17 beta-estradiol and 11-ketotestosterone in the mature carp cyprinus carpio l. | daily changes in blood serum levels of 17 beta-estradiol and 11-ketotestosterone in the mature carp cyprinus carpio were investigated. fish were kept under natural light conditions (ld = 16:8) water temperature about 19 degrees c. females and males were divided into 2 groups respectively. each group was sampled every 4 h during 24 h beginning at 08:00 (group 1) and 10:00 (group 2). the 17 beta-estradiol assay included a chromatographic step which increased the specificity of the measurement whil ... | 2015 | 3720427 |
| [zschokkella (protozoa: myxosporea) in the gallbladder of cyprinus carpio (osteichthyes) in east germany]. | the gallbladder of two-yearling carps caught in a lake in the region of frankfurt-on-oder was found invaded with zschokkella sp., which is the first case recorded in the german democratic republic. | 1986 | 3717686 |
| anesthesia and recovery with tricaine methanesulfonate, eugenol and thiopental sodium in the carp, cyprinus carpio. | 1986 | 3712895 | |
| annual cyclical changes in the testicular activity of an indian freshwater major carp, labeo rohita (hamilton). | different male germ cells identified on the basis of histological and cytological characteristics in the testicular lobules of labeo rohita have been grouped into spermatogonia, primary spermatocytes, secondary spermatocytes, spermatids and spermatozoa. the seasonal changes of the testis in l. rohita have been described according to its morphological peculiarities as well as to its variations in gonadal volumes, gsi values and frequency percentages of the different male germ cells occurring in t ... | 1986 | 3710120 |
| characterization of lens crystallins and their mrna from the carp lenses. | crystallins from carp eye lenses have been isolated and characterized by gel permeation chromatography, sds-gel electrophoresis, immunodiffusion and amino acid analysis. gamma-crystallin is the most abundant class of crystallins and constitutes over 55% of the total lens cytoplasmic proteins. it is immunologically distinct from the alpha- and beta-crystallins isolated from the same lens and its antiserum shows a very weak cross-reaction to total pig lens antigens. comparison of the amino acid co ... | 1986 | 3707973 |
| resonance raman spectroscopic evidence that carp deoxyhemoglobin remains in a t-like quaternary structure at high ph: implications for cooperativity. | resonance raman spectroscopy shows the fe-proximal imidazole stretching band to shift from 215 to 219 cm-1 between human deoxyhemoglobin (deoxy-hb) and a hb sample which is 75% oxygenated, demonstrating that the t-r quaternary structure switch can be monitored by resonance raman spectroscopy in native hb at equilibrium. for deoxy-hb from carp, the band is at 215 cm-1 at ph 9 as well as ph 6, contrary to previous reports of an elevated frequency at high ph. the invariance of this frequency over a ... | 1986 | 3707921 |
| 1h nmr spectroscopic studies of calcium-binding proteins. 2. histidine microenvironments in alpha- and beta-parvalbumins as determined by protonation and laser photochemically induced dynamic nuclear polarization effects. | the microenvironments of the histidines in three isoforms of ca(ii)-bound parvalbumin (carp, pi = 4.25; pike, pi = 5.00; rat, pi = 5.50) have been examined with 1h nmr techniques to probe their protonation characteristics and photochemically induced dynamic nuclear polarizability (photo-cidnp). the histidine at position 26 (or 25), present in all three of these proteins, shows absolutely no photo-cidnp enhancement of its c2h or c5h resonances. nor does this nonpolarizable histidine possess a nor ... | 1986 | 3707913 |
| 1h nmr spectroscopic studies of calcium-binding proteins. 1. stepwise proteolysis of the c-terminal alpha-helix of a helix-loop-helix metal-binding domain. | a series of modified parvalbumins, differing only in length of alpha-helix f at the c-terminus, was prepared by carboxypeptidase-mediated digestions of the beta-lineage parvalbumin (pi = 4.25) from carp (n; 108 residues). removal of ala-108 to form the n-1 derivative (des-ala108,lys107-parvalbumin) only slightly alters the protein's ability to chelate ca(ii) or lanthanides(iii). analysis of the kinetics of their yb(iii) off-rates by optical stopped-flow techniques, determination of their lu(iii) ... | 1986 | 3707912 |
| calcium-independent stimulation of glycogenolysis by arginine vasotocin and catecholamines in liver of the axolotl (ambystoma mexicanum) in vitro. | arginine vasotocin (avt) caused a concentration-dependent increase of glycogen phosphorylase alpha activity, breakdown of glycogen and release of glucose, when added to pieces of axolotl liver in organ culture. the concentration causing half-maximal response (ec50) was about 1 nmol/l. these actions of avt were unaffected by the adrenergic antagonists propranolol, yohimbine and prazosin, but were blocked by equimolar amounts of d(ch2)5tyr(me)avt, a synthetic antagonist of vasopressin. arginine va ... | 1986 | 3701246 |
| movement of fe with respect to the heme plane in the r-t transition of carp hemoglobin. an extended x-ray absorption fine structure study. | carp hb undergoes a well known change in kinetics over the ph range 6-9. x-ray absorption spectroscopy, in conjunction with refined data analysis procedures, shows no difference in iron-ligand distances when carp hbco is switched from r (high affinity) to t (low affinity) states. these distances are 2.015 +/- 0.015 a for the average iron-pyrrole nitrogen distance, 2.14 +/- 0.04 a for the iron-nitrogen (of histidine) distance, and 1.89 +/- 0.05 a for the fe-c (of co) distance. examination of the ... | 1986 | 3700368 |
| does the natural diet influence the intestine's ability to regulate glucose absorption? | two fish species (rainbow trout and common carp) that differ in natural diet also exhibit differences in the adaptive flexibility of their intestinal nutrient transport mechanisms in response to changes in dietary nutrient composition. when carp ingested a feed that was 24% glucose by weight, there was an increase in both the intestinal length and rates of nutrient absorption, particularly for glucose, when compared to carp fed an isonitrogenous diet devoid of digestible carbohydrate. as a resul ... | 1987 | 3693623 |
| effects of nitrite exposure on blood respiratory properties, acid-base and electrolyte regulation in the carp (cyprinus carpio). | adult carp were subjected to 1 mm environmental nitrite for 48 h and nitrite uptake and changes in blood respiratory properties, extracellular electrolyte composition and acid-base status were examined. a constant influx of nitrite caused an accumulation of no2- in plasma to 5.4 mm in 48 h. the fraction of methaemoglobin rose with plasma [no2-] to 83%, and the arterial oxygen content decreased to extremely low values. arterial po2 increased as a compensation to this o2-shortage, whereas the o2 s ... | 1987 | 3693620 |
| ultrastructural demonstration that melanin-concentrating hormone-like and alpha-melanocyte-stimulating hormone-like immunoreactive molecules coexist in the same neurosecretory granules. | using immunocytochemical methods at the electron microscope level, immunoreactivity for both melanin-concentrating hormone (mch) and alpha-melanocyte-stimulating hormone (alpha-msh) has been demonstrated in the carp neurohypophysis. a double-labelling technique, using colloidal gold probes of different sizes showed that immunoreactivity to both molecules coexists within the same neurosecretory granules in some neurones, while in other neurones the granules exhibit only mch-like immunoreactivity. ... | 1987 | 3683983 |
| [physiopathologic data on the action of selected fungicides and herbicides in carp]. | 1987 | 3675117 | |
| comparative antioxidant enzyme study in freshwater fishes. ii. distribution of antioxidant enzymes and lipid peroxidation in omnivorous fish organs. | comparative studies were performed on the activities of superoxide dismutases, catalase and glutathione peroxidase in organ homogenates from three omnivorous fishes, the barbel, crucian carp and common carp. the lipid peroxidation and protein contents of organ homogenates were also compared. these comparative measurements primarily provide control values for subsequent toxicological examinations. the highest total superoxide dismutase activities were found in the liver or roe, kidney, heart and ... | 1986 | 3673448 |
| [rhythmic activity of the endbrain in the carp evoked by adequate visual stimulation]. | in acute experiments on immobilized carps, under dark adaptation conditions, studies have been made on the electrical activity of the telencephalon and midbrain tectum. it was found that in the latter photostimulation evokes local rhythmic activity which includes fast (30-50 hz) phasic (200-300 ms) and slow (8-14 hz) tonic (up to 3-4 s) components. high rhythm of this activity may be observed only in "healthy" preparations, coinciding with on-rhythm in the midbrain tectum. low rhythm does not de ... | 2013 | 3673369 |
| the effect of shape and position of the oxygen equilibrium curve on extraction and ventilation requirement in fishes. | the effects of haemoglobin-oxygen affinity and of cooperativity in oxygen binding on the oxygen extraction and ventilation requirement in fish are analysed using the mathematical model of malte and weber (1985). it is shown that a high affinity may allow a substantial reduction in ventilatory requirement and that optimal o2 uptake depends on a delicate balance between affinity and cooperativity. using p50 and nh values from the literature, the oxygen extraction values predicted by the model for ... | 1987 | 3671901 |
| effect of relative immobilization on histochemical characteristics of various fibre types in myotomal muscle of the indian major carp (catla catla) fingerlings. | 2011 | 3666828 | |
| first record of sphaerospora renicola dyková et lom, 1982 and myxobolus encephalicus mulsow, 1911, pathogenic protozoans of carp from the u.s.s.r. | 1987 | 3666614 | |
| contribution to the knowledge of gyrodactylus gurleyi price, 1937 (monogenea: gyrodactylidae). | gyrodactylus longoacuminatus zitnan, 1964, forma minor sensu ergens (1985) was identified as g. gurleyi price, 1937. morphological and metrical evaluations of the hard parts of opisthaptor of more than 200 specimens provided data on the variability of this parasite; cyprinus carpio haematopterus represents its new host. since the shape of the hard parts of opisthaptor of g. gurleyi is very similar to that of g. longoacuminatus, further detailed studies of the two species will be necessary, parti ... | 1987 | 3666611 |
| comparative analysis of gastrin-immunoreactive and argyrophil cells in bony fish larvae. | a comparative study was made of enteroendocrine cells in the larvae of bony fishes (teleostei): carp (cyprinus carpio l.), big head (aristichyts nobilis richardson), silver carp (hypophthalmichthys molitrix valenciennes), and atlantic salmon (salmo salar l.). argyrophil cells demonstrated by the method after grimelius were found in all examined fish species. they are located in the pyloric appendices, stomach and intestinal mucosa. gastrin-immunoreactive cells demonstrated by the immunocytochemi ... | 1987 | 3666239 |
| [cation exchange in the crucian carp in media with various ion compositions]. | 1987 | 3666211 | |
| accumulation of pesticides in the organs of carp, cyprinus carpio l., at 4 degrees and 20 degrees c. | 1987 | 3663990 | |
| toxicity of crude oil to the metabolism of freshwater minor carp, puntius sophore. | 1987 | 3663971 | |
| the variation in the light responses of carp retinal ganglion cells is independent of response amplitude. | the variation of the response rate of carp retinal ganglion cells to photopic light stimulation was studied. it was found that the standard deviation was independent of the mean of the response rate, even when responses showed compression. this finding is in agreement with a late origin of retinal noise. implications of the existence of intrinsic constant amplitude retinal noise and of the presence of a mean maintained activity are discussed. | 1987 | 3660609 |
| a computer-assisted study of quantitative morphological features of c type horizontal cells in retina. | biphasic c type horizontal cells of the retina of crucian carp were intracellularly stained with horseradish peroxidase (hrp) and quantitatively studied with computer-aided three-dimensional reconstruction techniques. several parameters characterizing their morphology were determined and compared among different subtypes of horizontal cells. the results show that both cell body area and horizontal extension are proper parameters by which different subtypes of biphasic horizontal cells can be cle ... | 1987 | 3659894 |
| development of heterologous radioimmunoassay for indian carp and murrel gonadotropin hormone. | 1987 | 3653929 | |
| morphology and anatomy of the olfactory organs of a silver carp, hypophthalmichthys molitrix (val.). | 2013 | 3653815 | |
| in-vitro binding of gonadotrophin to fish ovary. | binding of piscine and mammalian gonadotrophin to plasma membranes from the ovaries of a fish, the murrel (channa punctatus), clearly suggests that the fish ovary possesses distinct and specific binding sites for both piscine and mammalian gonadotrophins. maximum specific binding of 125i-labelled human chorionic gonadotrophin (125i-hcg) and 125i-labelled silver carp gonadotrophin (125i-scg) was obtained at 30 degrees c and ph 7.5 during 2 h of incubation. in competitive binding studies, binding ... | 1986 | 3643250 |
| inhibitory effect of carp muscle trypsin inhibitor on mammalian pancreatic proteinases. | carp muscle trypsin inhibitor showed an inhibitory effect on bovine trypsin, bovine alpha-chymotrypsin and porcine elastase in a non-competitive, competitive and competitive manner, respectively. the inhibitor formed a stable complex with the above proteinases which was not dissociated in the presence of 2-mercaptoethanol and sds. the true target proteinase for carp muscle trypsin inhibitor, as yet unknown, seems to be an alpha-chymotrypsin- or elastase-like enzyme rather than trypsin, judging f ... | 1986 | 3633776 |
| [effect of prolactin on the phospholipid composition and cholesterol level in liver microsomes of the carp during acclimation to different temperatures]. | the phospholipid composition, content of cholesterol and its esters in the carp (cyprinus carpio l.) liver microsomes depend on the environmental temperature. the free cholesterol amount and cholesterol/phospholipids ratio in microsomes decrease after the lowering of temperature from 20 to 5 degrees c. the temperature elevation to 30 degrees c results in an increase of the cholesterol ester content. the relative proportions of phosphatidyl choline, phosphatidyl ethanolamine, sphingomyelin, phosp ... | 2015 | 3629731 |
| mechanoreceptor activity in the gills of the carp. ii. gill arch proprioceptors. | the presence of gill arch proprioceptors in the gills of a teleost, cyprinus carpio l., is demonstrated and their firing characteristics are analysed. spontaneous activity of gill arch proprioceptors was recorded from epibranchial ganglia. in paralysed fish the mean discharge rate for 16 receptors ranged from 11.3 impulses x sec-1 (sd 0.3) to 25.7 impulses x sec-1 (sd 0.4). the discharge rate could be influenced by displacement of the main elements of the respiratory pumping system. the receptor ... | 1987 | 3629008 |
| mechanoreceptor activity in the gills of the carp. i. gill filament and gill raker mechanoreceptors. | physiological properties of gill filament and gill raker mechanoreceptors in the gills of spontaneously breathing carp, cyprinus carpio l., were analysed. stroking stimuli applied to gill filaments elicited a phasic mechanoreceptive response, which was recorded from neurons in the epibranchial ganglia. sustained deflection resulted in a short on-off response. the same neurons were also activated by slight movements of lamellae on a gill filament. the receptive field extended over all the lamella ... | 1987 | 3629007 |
| testicular tumors in carp-funa hybrid: annual cycle and effect on a wild population. | this study documents the occurrence of testicular tumors in a wild population of carp-funa hybrids. the most prevalent tumor was a dysgerminoma. there were lower prevalences of seminomas, leiomyomas, sertoli cell tumors, and spermatocytic seminomas. sex-ratio, gonadosomic index (gi) and the prevalence of tumors in the monthly catch was analysed for five consecutive reproduction periods (1980 to 1984). gonadal tumors were found only in males. this may be important to the population dynamics of th ... | 1987 | 3625900 |
| glyceraldehyde-3-phosphate dehydrogenase. investigation on the regions responsible for self-assembly of subunits. | 1. in glyceraldehyde-3-phosphate dehydrogenase (gapdh) (ec 1.2.1.12) the four s-loop form the core of the tetramer. 2. amino acid sequence of the s-loop of the regions of gapdh from carp muscle was established through the analysis of tryptic digests of the enzyme treated alternatively with bromocyanate and o-iodosobenzoic acid. 3. enzyme had been oxidized with performic acid. after treatment with trypsin the peptide mixture was fractionated into fragments. 4. cnbr cleavage of this enzyme was per ... | 1987 | 3621906 |
| intrinsic fluorescence of carp hemoglobin: a study of the r----t transition. | the intrinsic fluorescence of hemoglobins is known to respond to ligand-induced changes in the quaternary structure of the protein. carp hemoglobin is an interesting model to study the quaternary transition since its r----t equilibrium is ph-dependent and at low ph, in the presence of organic phosphate, it remains in the t or 'deoxy' quaternary structure, even when saturated with ligand. in this study, using front-face fluorometry, we show that the intrinsic fluorescence intensity exhibited by c ... | 1987 | 3620472 |
| homeothermic fish and hemoglobin: primary structure of the hemoglobin from bluefin tuna (thunnus thynnus, scromboidei). | some fish are warm-bodied, e.g. the bluefin tuna (thunnus thynnus), which has a muscle temperature 12-17 degrees c higher than its environment. this endothermy is achieved by aerobic metabolism and conserved by means of a heat-exchanger system. the hemoglobins of bluefin tuna are adapted to these conditions by their endothermic oxygenation, thus contributing to the preservation of the body energy. this is a new and so far unique property of tuna hemoglobin. the primary structure of the alpha and ... | 1987 | 3620111 |
| [effect of thyroxin on the functional state of the respiratory chain in liver mitochondria of the carp cyprinus carpio during acclimatization to changes in water temperature]. | it has been demonstrated that oxidative phosphorylation in liver mitochondria of the carps which were kept within a week at 5 and 25 degrees c remains unaffected by the addition of 0.5 micron thyroxin to the incubation medium. addition of thyroxin (0.5 micron) to mitochondrial suspension prepared from the liver of carps acclimated within a week at 20 and especially 25 degrees c, resulted in uncoupling of respiration and phosphorylation. daily injections of thyroxin within a week (2 mu kg per 1 g ... | 2013 | 3618015 |
| aquaculture in europe. | the major aquatic species farmed in europe are atlantic salmon, rainbow trout and carp. eels, flat-fish, mussels, oysters and crayfish are also produced. northern europe, with more temperate climates, centers its production around the salmonidae; further south and east eels and various species of carp are farmed. farm systems vary from extensive fishing lakes to highly intensive tank units. drugs and chemicals appear to be reasonably available in europe to fish farmers. three antimicrobials are ... | 2013 | 3617445 |
| identification of new biphasic c-type horizontal cells in cyprinid fish. | new biphasic c-type horizontal cells were identified physiologically and morphologically in the retina of live immobilized crucian carp. these cells, like commonly studied r/g type cells, hyperpolarized to short wavelength lights and depolarized to long wavelength lights, but inverted response polarity at about 560 nm. spectral sensitivities of hyperpolarizing and depolarizing components showed that they were produced by inputs from blue-sensitive cones and green-sensitive cones respectively. th ... | 2012 | 3616599 |
| effects of carp hypophyseal homogenate doses, incubation times, and temperatures on carp oocyte maturation and steroidogenesis in vitro. | ovarian tissue from carp which had received injections of either saline or carp hypophyseal homogenate (chh) 24 hr prior to sacrifice was incubated for 8, 16, or 24 hr at 4, 15, 20, or 25 degrees with 0, 30, 100, or 200 micrograms chh. 17,20 beta-dihydroxy-4-pregnen-3-one (17,20 beta p) was produced only by chh-primed tissue, but there was no difference between the two groups in production of testosterone, 17-hydroxyprogesterone, or testosterone glucuronide. production of all steroids was greate ... | 1987 | 3609705 |
| the relation between pituitary gland and thyroid growth during the lifespan of the annual fish cynolebias whitei and nothobranchius korthausae: gonadotropic and thyrotropic cells. | in the annual cyprinodont cynolebias whitei the cell types responsible for the increase of pituitary growth at the onset of maturation and for pituitary hyperplasia in old specimens were identified as gonadotropic cells and thyrotropic cells, respectively. the gonadotropic cells showed a high affinity to anti-carp alpha beta-gth serum, both at light- and electron-microscopical levels. the allometric relation of total gonadotropic cell volume to body length, determined for fish from six weeks up ... | 1987 | 3607854 |
| photoreceptor inputs converging onto c-type horizontal cells of the retina of crucian carp. | responses of r/g-type horizontal cells recorded intracellularly in eye cup preparations with normal circulation of crucian carp under dark-adapted conditions were studied and photoreceptor inputs converging onto them were identified. spectral sensitivities of the hyperpolarizing component of responses, determined at different phases, suggested that it was produced by input from green-sensitive cones. this input and input from long wavelength sensitive cones, causing depolarization of cells, were ... | 1987 | 3602980 |
| functional and morphological correlates of amacrine cells in carp retina. | experiments were conducted on isolated retinas of adult carp (cyprinus carpio) to investigate correlations between photoresponses and morphological features of amacrine cells. the fluorescence dye lucifer yellow ch was iontophoretically injected into single cells which had been characterized electrophysiologically. photoresponses were classified into two main types (transient on-off and sustained), which were further subgrouped into "fast" and "slow" on-off types and into on-center and off-cente ... | 2013 | 3601068 |
| a chemokinetic factor in the carp cyprinus carpio. | the results describe experiments which demonstrate that the teleost cyprinus carpio is capable of elaborating a substance which has analogous in vitro effects to that of mammalian chemokinetic lymphokines. in vitro stimulation of leucocytes from carp pronephros, both with antigens and mitogens, was used to provide culture supernatants which were applied to an in vitro chemokinetic assay. the chemokinetic factor-like activity could be detected in supernatants after one day of culture and at a dil ... | 1987 | 3595938 |
| blood type compatibility of lower vertebrates: phylogenetic diversity in blood transfusion between fish species. | bidirectional transfusion was investigated using phylogenetically different fish species, including twelve from ten genera. three different modalities were used: long-lasting persistence when rainbow trout received allogenic erythrocytes, slow rejection when rainbow trout received heterogenic erythrocytes (salmon) and acute rejection after receiving xenogenic erythrocytes (goldfish, carp and tilapia). changes were measured in serum using transfused erythrocytes and hemolytic assays. the response ... | 1987 | 3595936 |
| bioconcentration of alcohol ethoxylates in carp (cyprinus carpio). | the uptake, distribution, and clearance of three labeled nonionic surfactants, 14c-labeled dodecyl tetra(oxyethylene) ether [14c-c12-ae(4)], 14c-labeled dodecyl octa(oxyethylene) ether [14c-c12-ae(8)], and 14c-labeled dodecyl hexadeca(oxyethylene) ether [14c-c12-ae(16)] were investigated in carp (cyprinus carpio) exposed to concentrations of 0.2-0.6 mg x liter-1, using whole-body autoradiography and the liquid scintillation counting method. 14c radioactivity was rapidly absorbed into the fish bo ... | 1987 | 3595483 |
| yersinia enterocolitica, yersinia frederiksenii and yersinia intermedia in cyprinus carpio (linneo 1758). | 1987 | 3591113 | |
| the hypothalamo-hypophysial system of the wild carp, cyprinus carpio l. iii. changes in the anterior and posterior neurohypophysis during spawning. | 1986 | 3590939 | |
| primary structure of common carp prolactins. | the complete amino acid sequence of common carp (cyprinus carpio) prolactin (prl) has been determined. one milligram of carp prl was reduced, carboxymethylated, and then cleaved with cyanogen bromide and several enzymes. another milligram of carp prl was digested with lysyl endopeptidase. the resulting fragments were separated by reverse-phase high-performance liquid chromatography and subjected to sequence analysis by the automatic edman method with a gas-liquid sequencer and the manual dns-edm ... | 1987 | 3582956 |
| response properties of c-type horizontal cells in the retina of the bowfin. | intracellular recordings were obtained from biphasic- and triphasic-type horizontal cells (c cells) in the retina of the bowfin. for steady-state responses, both cell types displayed a linear stimulus-response function for responses up to at least 20% of maximum. in the linear range, responses to red/green mixtures were well predicted from the assumption that opposed inputs combine by simple summation. action spectra were measured in the linear range for 30 biphasic and 12 triphasic cells. bipha ... | 1987 | 3576978 |
| autoradiographic localization of gonadotrophin receptors in ovaries of the common carp, cyprinus carpio l. | binding sites for carp gonadotrophin have been located in carp ovaries using [125i]labeled gonadotrophin and autoradiography. the radioactive gonadotrophin was displaced from tissue by unlabeled gonadotrophin or carp hypophysial homogenate in a dose-dependent fashion. no binding of gonadotrophin was found in previtellogenic oocytes but binding appeared with the first indications of vitellogenesis. in the smaller vitellogenic oocytes binding was uniformly distributed in the follicular envelope, b ... | 1986 | 3557077 |
| the thyroxine-stimulating activity is only present in the glycoprotein and not in the protein fraction of a carp hypophyseal homogenate. | the in vivo release of thyroxine (t4) in the carp (cyprinus carpio) and the in vitro release of t4 in the frog (rana ridibunda) from isolated thyroids were used as a bioassay to study the thyrotropic activity of carp hypophyses. the addition of up to 1 hypophyseal equivalent to the medium did not increase the in vitro release of t4 from isolated frog thyroids in november whereas 3 mu of bovine thyrotropin (b-tsh) was effective. however, when this experiment was repeated at the end of february, t ... | 1986 | 3557057 |
| the influence of environmental temperature on the lymphocyte populations in carp (cyprinus carpio l.). | the influence of environmental temperature upon the lymphocyte populations in carp (cyprinus carpio l.) has been studied by immunoperoxidase labeling using different antisera. in carps kept in a warm and a cool environment, respectively, rabbit anti-carp igm as well as rabbit anti-carp fc antiserum showed different percentages of ig-positive lymphocytes, whereas the percentage remained unaffected by temperature after the use of rabbit anti-carp fab antiserum with a specificity against l-chains. ... | 1987 | 3555478 |
| neuropeptide y (npy) immunoreactive neurons in the retina of different species. | neurons displaying neuropeptide y (npy) immunoreactivity were found among amacrine cells in the retina of baboon, pig, cat, pigeon, chicken, frog, trout, carp and goldfish. the immunoreactive cell bodies were located in the middle and the innermost cell rows of the inner nuclear layer with processes forming one, two or three more or less well-defined sublayers in the inner plexiform layer. the location and the density of the sublayers varied with the species investigated. in the frog retina, bip ... | 1986 | 3546220 |
| purification of gonadotropic hormone from the pituitary of the african catfish, clarias gariepinus (burchell), and the development of a homologous radioimmunoassay. | glycoprotein gonadotropic hormone (gth) was purified from 2000 pituitaries of male and female african catfish, clarias gariepinus. the first step was chromatography on concanavalin a-sepharose followed by filtration on ultrogel aca 54, chromatography on deae-cellulose, and filtration on ultrogel aca 54, respectively. finally, the purified fractions were analyzed by polyacrylamide gel electrophoresis. the gonadotropic activity in the different fractions was characterized using two tests: the radi ... | 1986 | 3536658 |
| the use of artificial gynogenesis in studies on the immune system of carp (cyprinus carpio l.). | gynogenetic carp were obtained by using gamma-irradiated sperm for fertilization followed by a cold shock. the gynogenetic fish and normal siblings of the same parents were analysed for 3 genetic markers: scale pattern, transferrin (tf) and allograft rejection. gynogenetic offspring showed only the maternal scale pattern (scattered). in the majority of the gynogenetic fish a heterozygous tf pattern identical to the mother was observed. animals homozygous for tf were rare in this group. a typical ... | 1986 | 3532513 |
| immunohistochemical localization of urotensins i and ii in the caudal neurosecretory neurons of the carp cyprinus carpio and the sharks heterodontus japonicus and cephaloscyllium umbratile. | using antisera to urotensins i and ii (ui and uii), in the carp, cyprinus carpio, three types of caudal neurosecretory neurons were identified: those with both ui- and uii-immunoreactivities, those with only ui-immunoreactivity and those with only uii-immunoreactivity. the last type of neurons exceeded the other types in number, while neurons immunoreactive with both ui and uii antisera were relatively few. the axons of neurons of these three types terminated around the capillaries in the urophy ... | 1986 | 3524503 |
| cytological features of serotonin-containing neurons and their processes in the retina of the carp (cyprinus carpio). an immunohistochemical study using flat-mount preparations. | the morphological features of serotonin-containing neurons (scns) and their processes in the retina of the carp (cyprinus carpio) were immunohistochemically studied by applying a modified peroxidase-antiperoxidase technique using flat-mount preparations. the somata of immunoreactive scns were mostly located in the innermost part of the inner nuclear layer (inl). these cells were distributed at a density of 64.8 cells/mm2, this being similar to the density of dopamine-containing interplexiform ce ... | 1986 | 3522498 |
| cadmium-binding protein (metallothionein) in carp. | when carp (cyprinus carpio) were exposed to 5 and 30 ppm cd in the water, the contents of cd-binding protein, which has low molecular weight, increased in the hepatopancreas, kidney, gills and gastrointestinal tract with the duration of exposure. this cd-binding protein was purified from hepatopancreas, kidney, gills, and spleen of carp administered 2 mg/kg cd (as cdcl2), intraperitoneally for 6 days. two cd-binding proteins were separated by deae-sephadex a-25 column chromatography. these prote ... | 1986 | 3519201 |
| ruffed cells in the olfactory bulb of freshwater teleosts. i. golgi impregnation. | the olfactory bulbs of barbus meridionalis, carassius carassius, chondrostoma polylepis, cyprinus carpio, tinca tinca and salmo gairdneri were examined by two variants of the golgi technique. we report, for the first time, the existence of ruffed cells in these species. this neuronal type shows a characteristic morphology and location. overall, these cells exhibit a generalised pattern, although there are qualitative and quantitative variations between the various species studied. | 2012 | 3503042 |
| [radiological lesions of the hands in rheumatoid arthritis with rheumatoid factors and antinuclear antibodies]. | hand radiograms of 119 consecutive patients affected with rheumatoid arthritis (ra) were examined. the patients were distributed in different groups: 46 with (rf+) and 73 without (rf-) rheumatoid factor; 23 with (ana+) and 96 without (ana-) antinuclear antibodies. we found that rf+ group significantly differs from the rf- in order to the presence of symmetrical erosions of proximal interphalangeal joints (pip) and the presence of monolateral erosions of metacarpophalangeal joints (mcp), particul ... | 2016 | 3499656 |
| [hereditary effects of artificial selection of sperm for the endurance trait in the carp cyprinus carpio and the frog rana temporaria]. | studies have been made of the effect of artificial selection of parental sperm by maximum motility time (maximum tolerance) on the body length in carp larva and heat resistance level of muscle tissue in tadpoles. sperm selection increases mean values of these parameters due to the increase in the progeny of the relative number of long-sized individuals and individuals with higher heat resistance of muscle fibers. | 2009 | 3494361 |
| monooxygenase activity of fish liver in biomonitoring aquatic environment. | the hepatic biotransformation activity of four cultivated freshwater fish, amur carp (ctenopharyngodon idella), carp (cyprinus carpio), rainbow trout (salmo gairdneri) and tench (tinca tinca) were studied one day after catching the fish from ponds and a river in the south of gdr and in fish kept for two weeks in clean filtrated and deacidified water. aryl hydrocarbon hydroxylase, 7-ethoxycoumarin o-deethylase and 7-ethoxyresorufin o-deethylase activities fell to about 20% during the stay in clea ... | 1986 | 3492989 |
| phylogenetic studies on lymphokines. fish lymphocytes respond to human il-1 and epithelial cells produce an il-1 like factor. | the results obtained indicate, that catfish peripheral blood lymphocytes recognize and respond to human il-1. the second part of this report is dealing with a substance produced by carp epidermal cells with functional similarities to mammalian il-1. | 1986 | 3490047 |
| distribution of pancreatic elastase and metalloproteinase in vertebrates. | elastase-like enzymes were detected as zymogens in all of the pancreatic extracts from the gummy shark, bullhead shark, angel shark, smooth hammerhead, bestel, rainbow trout, carp, eel, japanese mackerel, yellowtail, sea bass, parrotfish, bullfrog, chicken, bluewhite dolphin, hog, rat, cat, and dog. the distribution of pancreatic elastase and metalloproteinase was examined on the basis of the effect of specific inhibitors on elastase like-activity in each extract. the results indicate that pancr ... | 1986 | 3484693 |
| cloning and sequence analysis of cdna encoding urotensin i precursor. | the primary structure of the precursor of urotensin i, a neuropeptide hormone from the caudal neurosecretory system of the carp cyprinus carpio, has been determined by analyzing the nucleotide sequence of cloned dna complementary to the mrna encoding it. the precursor consists of 145 amino acid residues and the carboxyl terminus represents the 41-amino acid sequence of urotensin i, preceded by lys-arg and followed by gly-lys. sequence homology as well as similar organization of the precursors of ... | 1986 | 3484550 |
| environmental changes induced by growth-associated triggering factors in injured optic nerve of adult rabbit. | central nervous system (cns) neurons of mammals regenerate poorly after axonal injury. however, if an injured cns neuron (rabbit optic nerve) is supplied with appropriate soluble substances ("growth-associated triggering factors") derived from medium conditioned by regenerating fish optic nerve or newborn rabbit optic nerve, it can express regeneration-associated characteristics. such characteristics include a general increase in protein synthesis, changes in synthesis of specific polypeptides, ... | 1987 | 3470808 |
| morphological study of signal pathway between the somata and the axon terminals of l-type horizontal cells in carp retina. | 1986 | 3464858 | |
| local fe site structure in the tense-to-relaxed transition in carp deoxyhemoglobin: a xanes (x-ray absorption near edge structure) study. | the fe-site structure variation in the transition from the low-affinity tense (t) quaternary structure to the high-affinity relaxed (r) structure in carp deoxyhemoglobin was studied by analysis of multiple scattering resonances in the xanes (x-ray absorption near edge structure) spectra. high signal-to-noise xanes spectra were measured at the frascati "wiggler" synchrotron radiation facility. we find that the forces on the fe active site due to the change of quaternary protein conformation do no ... | 1986 | 3463997 |
| chemical modification of histidine, tyrosine, tryptophan and cysteine residues in carp (cyprinus carpio) muscle enolase. | enolase from carp (cyprinus carpio) muscle was modified by diethylpyrocarbonate, tetranitromethane, n-bromosuccinimide and 5,5'-dithiobis(2-nitrobenzoic acid). the extent and rate of modification and its effect on the enzyme activity were determined. modification of histidine, tyrosine and tryptophan residues caused complete inactivation of the enzyme; mg2+ as well as 2-phosphoglycerate markedly altered the rates of modification and inactivation. the above-mentioned amino acid residues seem to b ... | 1987 | 3454643 |
| the effect of an organophosphorus pesticide on the enzymes of carp (cyprinus carpio l.). | 1. the effect of 1.5, 2.0 and 5.0 ppm methidation was studied on the asat, alat, ldh and ache enzymes, as well as the blood sugar and adrenaline levels in carp. 2. according to our studies methidation implies a potential hazard on the normal biochemical processes of fishes: causing tissue necrosis indicated by the increase asat, alat and ldh activities, inducing continual stress effect reflected by the increased blood sugar and adrenaline levels, inhibiting ache activity in the various organs, t ... | 1987 | 3448863 |
| comparative antioxidant enzyme and lipid peroxidation study in erythrocytes and liver of some freshwater fish. | 1. superoxide dismutase (sod), catalase (c), peroxidase (p) and glutathione peroxidase (gsh-px) were estimated in the erythrocytes and liver of the carp, the tench and the crucian carp during a two-years period, 1983-1984 (autumn). 2. the lipid peroxidation (lp) of the erythrocytes and liver homogenates was also compared. 3. the activities of the enzymes examined showed significant interspecies variations. 4. significant differences were observed between enzyme activities (except for sod in the ... | 1986 | 3442172 |
| interaction of mycoplasma mobile 163k with erythrocytes. | mycoplasma (m.) mobile 163k isolated from fish was investigated for its hemadsorbing, hemagglutinating, and hemolysing capacities and for its ability to adhere to erythrocytes. hemadsorption to the colonies of m. mobile occurred with ovine, bovine, equine, trout, and carp erythrocytes and was inhibited by treatment of the mycoplasmas with substances acting on proteins (pronase, trypsin, glutaraldehyde), heat, uv-irradiation and homologous antiserum. hemadsorption could be prevented also by treat ... | 1987 | 3439386 |
| unknown syndrome: abnormal facies, congenital heart defects, hypothyroidism, and severe retardation. | we present a female infant with (1) abnormal facies: microcephaly, blepharophimosis, small, low set, posteriorly rotated ears, bulbous nose, carp shaped mouth, micrognathia; (2) congenital heart abnormalities: large atrial and ventricular septal defects; (3) congenital hypothyroidism; (4) severe global retardation. | 1987 | 3430551 |
| experimental verification of the effect of the form (scaly or scaleless) of carp host (c. carpio l.) on the growth rate of micropopulations of gyrodactylus katharineri malmberg, 1964 (monogenea). | it was demonstrated that the growth rate of gyrodactylus katharineri micropopulations parasitizing the fry of cyprinus carpio l. was effected by water temperature and by the form of the fish host (scaly or scaleless). at lower water temperature (12 degrees c) the number of parasites increased in both host forms approximately at the same intensity. in warmer water (18 degrees c), the parasites reproduced intensively only on the scaly form of fish, whereas no parasites were found on the scaleless ... | 1987 | 3428761 |
| the temporal sequence of changes in oocyte maturation and ovarian steroid hormone production during induced ovulation in the common carp, cyprinus carpio. | oocytes taken from carp sacrificed 3-24 hr after injection with either carp hypophysial homogenate (chh) (primed) or saline (control) were incubated with or without chh for 24 hr at 20 degrees. in oocytes from the primed fish the percentage of peripheral germinal vesicles at sacrifice progressively increased with time from injection. no such change occurred in control fish. after incubation with chh, tissue from primed fish showed a progressive increase in oocyte maturity with increasing time be ... | 1987 | 3428561 |
| binding of beta-adrenergic antagonists 3h-dha and 3h-cgp 12177 to intact rainbow trout (salmo gairdneri) and carp (cyprinus carpio) red blood cells. | beta-adrenergic ligand binding to trout (salmo gairdneri) and carp (cyprinus carpio) red cells using a hydrophobic (3h-dha) and a hydrophilic (3h-cgp) ligand was studied. conditions which lead to the appearance (in vivo and in vitro hypoxia in carp cells) or disappearance ("winter" acclimation history in trout red cells) of beta-adrenergic responses were associated with either an appearance or marked increase of isoproterenol-displaceable binding (carp), or a disappearance of isoproterenol-displ ... | 1988 | 3417118 |
| isolation and characterization of carp prolactin. | prolactin (prl) was extracted with acid-acetone from common carp (cyprinus carpio) pituitary glands and purified by gel filtration on sephadex g-75, ion-exchange chromatography on deae-cellulose, and reversed-phase high-performance liquid chromatography (hplc) on tsk-gel tms 250 with a yield of 0.7 mg/g wet tissue. at each stage of purification, fractions were monitored by hplc on tsk-gel ods 120t and sodium dodecyl sulfate-polyacrylamide gel electrophoresis (sds-page). carp prl was almost equip ... | 1988 | 3417116 |
| [increment of cone erg during light adaptation--carp retina (in vivo and in vitro)]. | 1988 | 3414455 | |
| immunoreactive methionine-enkephalin in the caudal neurosecretory system of the carp, cyprinus carpio. | methionine-enkephalin (met-enk) was detected by immunocytochemistry and radioimmunoassay in the caudal neuro-secretory system of the carp cyprinus carpio. some cells showing urotensin i (ui)-immunoreactivity reacted to met-enk antiserum, but others did not. neurons with urotensin ii (uii)-immunoreactivity did not react to met-enk antiserum; neurons with both ui and uii immunoreactivities also displayed a negative met-enk reaction. met-enk was detected by radioimmunoassay in the urophysis, althou ... | 1988 | 3409298 |
| calcium action potential in on-off transient amacrine cell of the carp retina. | for accurate measurement of a reversal potential of a postsynaptic potential, it is essential to polarize a postsynaptic neuron uniformly at equipotential levels. so far as the conventional intracellular current injection is employed, uniform polarization cannot be achieved in such neurons as retinal amacrine cells which have extensive dendritic arborizations, and a reversal potential value is inevitably overestimated. in the present experiment, we employed a new technique; carp amacrine cells w ... | 1988 | 3409037 |
| the adrenergic responses of carp (cyprinus carpio) red cells: effects of po2 and ph. | carp (cyprinus carpio) red cells do not show beta-adrenergic responses when incubated with 10(-5) mol l-1 adrenaline at atmospheric oxygen tension and a ph value close to the in vivo resting ph (approx. 8.1). however, when either the ph or the oxygen tension of the incubation medium is decreased, the adrenergic responses appear, showing that oxygen or an oxygen-linked phenomenon has a direct influence on the response. once present, the adrenergic red cell response is similar to that of trout: ce ... | 1988 | 3404075 |
| isolation of types i and v collagens from carp muscle. | 1. the major constituent of carp intramuscular connective tissue was found to be type i collagen. 2. a collagen homologous to type v collagen of higher vertebrate was also isolated from carp muscle. 3. relative portion of type v collagen was higher in carp muscle than in mammalian muscles. | 1988 | 3396321 |
| large olfactory responses of the carp after complete removal of olfactory cilia. | to study the role of olfactory cilia on olfactory reception, the carp olfactory cilia were removed by modified "ethanol-calcium shock" and the bulbar responses were recorded before and after deciliation. large olfactory responses to various amino acids were observed after complete deciliation. the relation between magnitude of olfactory response and alanine concentration before and after deciliation was essentially unchanged. the present results suggests that the olfactory cilia may not be neces ... | 1988 | 3395341 |
| enteric neuromuscular junctions: comparison of ultrastructural features in different phylogenetic groups. | the enteric neuromuscular junctions of snail (helix pomatia), locust (locusta migratoria migratorioides), cockroach (periplaneta americana), carp (cyprinus carpio) and tench (tinca tinca) were studied by means of different light and electron microscopic methods. the nitroblue tetrazolium staining revealed that the myenteric plexuses of the above species are composed of nerve cells, a network of varicose nerves and nerve bundles. instead of highly organized ganglia, single neurons or small groups ... | 1988 | 3393275 |
| measurement of dc and ac spectral sensitivities of retinal horizontal cells by "voltage clamp by light". | the method of "voltage clamp by light" was applied to measure spectral sensitivities of second-order visual neurons, namely l- and r/g-type horizontal cells in the carp retina. the present equipment employs (i) a ceramic photomodulator to facilitate a fast servomechanical control of retinal illuminance, (ii) an electronic circuit to compensate for the synaptic transmission delay, and (iii) a manual selection switch for the system to operate on negative feedback for either depolarizing or hyperpo ... | 1988 | 3386304 |