Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| daily cycles in plasma melatonin levels under long or short photoperiod in the common carp, cyprinus carpio. | a radioimmunoassay (ria) for plasma melatonin (mlt) was simplified for use with the common carp (cyprinus carpio). plasma was partially purified with sep-pak c18 cartridge before ria. the inhibition curves for the sep-pak c18 fraction from the plasma of carp, goldfish (carassius auratus), yellow tail (seriola quinqueradiata), japanese eel (anguilla japonica), bora (mugil cephalus cephalus), kisu (sillago japonica), ishigarei (kareius bicoloratus), and shimaisaki (rhyncopelates oxyrhynchus) were ... | 1988 | 3197949 |
| dopamine cells and rod bipolar cells contain protein kinase c-like immunoreactivity in some vertebrate retinas. | the localization of cells immunoreactive to a monoclonal antibody against protein kinase c (pkc) and to polyclonal antibodies against tyrosine hydroxylase (th) was investigated in the retina of fish (carp, goldfish, dace and catfish), frog, turtle, chick and some mammalians (guinea pig, rat, cat and rabbit) by means of fluorescence microscopy. pkc-like immunoreactivity was found in dopamine (da) or th-like immunoreactive (ir) cells in all the species examined and also in rod bipolar cells in the ... | 1988 | 3205402 |
| seasonal variations of glucose and triiodothyronine concentrations in serum of carp (cyprinus carpio l). | thyroid hormone and glucose serum concentrations (sc) of carps (cyprinus carpio l) have been monitored at weekly intervals throughout the year. t4 and rt3 concentrations were always below the limit of detection of the assays applied. t3 and glucose mean sc showed seasonal variations. highest t3 sc were reached in summer with a peak value in august and lowest values in winter with a maximum in december. glucose sc have been found to be highest in winter and lowest in summer. statistical analysis ... | 1988 | 3220447 |
| a comparative study of aldehyde dehydrogenase and alcohol dehydrogenase activities in crucian carp and three other vertebrates: apparent adaptations to ethanol production. | in the final step of the pathway producing ethanol in anoxic crucian carp (carassius carassius l.), acetaldehyde is reduced to ethanol by alcohol dehydrogenase. the presence of aldehyde dehydrogenase in the tissues responsible for ethanol production could cause an undesired oxidation of acetaldehyde to acetate coupled with a reduction of nad+ to nadh. moreover, acetaldehyde could competitively inhibit the oxidation of reactive biogenic aldehydes. in the present study, the distribution of aldehyd ... | 1988 | 3220990 |
| trace element residues in bluegills and common carp from the lower san joaquin river, california, and its tributaries. | whole-body samples of bluegills (lepomis macrochirus) and common carp (cyprinus carpio) from the san joaquin river and two tributaries (merced river and salt slough) were analyzed to determine if the concentrations of any of nine elements were elevated as a result of exposure of the fish to agricultural subsurface (tile) drainage water. highest concentrations (micrograms/g dry weight) detected were as follows (first number in each pair applies to bluegills and the second to carp): arsenic (as), ... | 1988 | 3222692 |
| [residues of active substances after consumption of contaminated food: status report on the evaluation of residues with examples of two drugs]. | pharmacokinetic models are presented for the computation of time courses of blood levels of drugs in man following the consumption of contaminated food. mathematically, two linear systems of differential equations are set up for the donor organism (e.g., trout) and for the recipient, (e.g., man), where the first system generates the initial conditions for the second. models of this kind are applied to the transfer of chloramphenicol to man via carp and trout (which had previously been administer ... | 1988 | 3223091 |
| purification and some properties of glyceraldehyde-3-phosphate dehydrogenase from carp muscle. | glyceraldehyde-3-phosphate dehydrogenase was purified from carp white muscle. on cm-sephadex chromatography two well separated active peaks were obtained. both of them show a single protein band on gel electrophoresis and have the same molecular and kinetic properties; they differ only by the amount of bound nad, the enzyme in the second peak being coenzyme-free. significant differences were observed between the properties of carp and pig muscle enzymes. glyceraldehyde-3-phosphate dehydrogenase ... | 1988 | 3232465 |
| xenobiotic metabolizing enzyme systems in test fish. iii. comparative studies of liver cytosolic glutathione s-transferases. | the reduced glutathione (gsh)-conjugating capacities of the livers of trout, carp, zebra fish, guppy, and bluegill have been evaluated with several substrates preferentially metabolized by the major gsh-transferase isozymes. carp and zebra fish lack gsh-transferase activity with 1,2-epoxy-3-(p-nitrophenoxy)propane. guppy is characterized by the highest activities with 1-chloro-2,4-dinitrobenzene and the absence of activity toward trans-4-phenyl-3-buten-2-one. enzyme activities with the other sub ... | 1988 | 3234293 |
| a comparative trial of garlic, its extract and ammonium-potassium tartrate as anthelmintics in carp. | while fish chemotherapy is not a common practice in méxico, folk medicine is usually well accepted by fish farmers. empirical knowledge suggested that garlic should have anthelmintic properties. various trials were carried out in cyprinus carpio infested with capillaria sp., using minced garlic and its extracts. an empirical concentration of 200 mg/l of minced garlic showed the greatest activity against the above mentioned worms (100%). the hexane extract in equivalent amounts showed a 75% effec ... | 1988 | 3253490 |
| the protein sequence homology of gamma-crystallins among major vertebrate classes and their dna sequence homology to heat-shock protein genes. | a systematic characterization of lens crystallins from five major classes of vertebrates was carried out by exclusion gel filtration, cation-exchange chromatography and n-terminal sequence determination. all crystallin fractions except that of gamma-crystallin were found to be n-terminally blocked. gamma-crystallin is present in major classes of vertebrates except the bird, showing none, or decreased amounts, of this protein in chicken and duck lenses, respectively. n-terminal sequence analysis ... | 1988 | 3255376 |
| comparative studies on the structure of biliary immunoglobulins of some avian species. ii. antigenic properties of the biliary immunoglobulins of chicken, turkey, duck and goose. | studies on the immunological cross-reactivity of the igs+ from the bile of chicken and turkey (order galliformes) as well as duck and goose (order anseriformes) to igs with antigenic known properties carried out by a series of ria. various class-specific anti-ig sera produced in rabbits, guinea-pigs and mice were used. the following results were obtained: (1) a high extent of antigenic relationship between the chicken and turkey biliary igs was demonstrated by a radiobinding system consisting of ... | 1988 | 3260198 |
| adaptational change in cone-mediated electroretinogram in human and carp. | 1988 | 3265993 | |
| the fetal phenotype of the 18p-syndrome. report of a male fetus at twenty-one weeks. | morphological and cytogenetic findings in a male fetus at 21 weeks gestation after prenatally detected monosomy 18p are reported. the fetus displayed dysmorphic features resembling the 18p-syndrome, such as decreased head circumference, slightly receding forehead, hypertelorism, epicanthus, horizontal palpebral fissures, depressed nasal bridge, long philtrum, carp mouth, irregular crenated maxillar alveolar ridge, retrognathia, lowset dysplastic ears with posterior rotation, edema of neck, hands ... | 1988 | 3281573 |
| scrapie-associated fibrils, prp protein and the sinc gene. | scrapie-associated fibrils (saf) are disease-specific structures found in extracts of the brains of animals affected with scrapie. these structures are pathological aggregates of a normal host protein called prp. in collaboration with konrad beyreuther (heidelberg), we have characterized the multiple forms of prp found in saf fractions from mouse brain affected by the me7 strain of scrapie. there is no in vivo n-terminal cleavage of the most abundant forms of prp. however, n-terminal cleavage of ... | 1988 | 2900718 |
| [characterization of opioid receptor from bullfrog brain]. | among the tested five species--carp, bullfrog chicken, rat, and mouse--the solubilized fraction derived from the bullfrog brain gave the highest binding activity similar to that of membranes. the difference in their binding activities was demonstrated to depend on the bmax value, but not on kd. high-affinity binding of [3h]naloxone and [3h]ethylketocyclazocine (ekc) was proved in supernatant of detergent-treated membranes. the displacement curves of various [3h]ligands binding to the membrane an ... | 1988 | 2851236 |
| amino acid sequence and three-dimensional structure of cytosolic adenylate kinase from carp muscle. | the amino acid sequence of cytosolic adenylate kinase from carp muscle has been determined. for the analysis of the blocked amino terminus an n-acylaminoacyl peptidase has been isolated and applied successfully. the resulting sequence is homologous to those of other adenylate kinases. it has 76% and 74% identical amino acids when compared with the enzymes from chicken and pig, respectively. the carp enzyme forms x-ray-grade crystals, the structure of which has been solved at 0.58-nm resolution. ... | 1988 | 2851785 |
| contractile response to substance p in isolated smooth muscle strips from the intestinal bulb of the carp (cyprinus carpio). | 1. the effect of substance p on the mechanical activity of carp intestinal bulb smooth muscle was investigated in vitro. 2. bath-applied substance p (1 nm-1 microm) caused concentration-dependent contraction of the smooth muscle. the ec50 value was 20 +/- 3 nm (n = 13). 3. pretreatment with tetrodotoxin (780 nm) or atropine (500 nm) partially decreased the contractile response to substance p, while methysergide (3 microm) did not decrease the response. 4. the contractile response to substance p ... | 1988 | 2455618 |
| antigenic determinants on human choriogonadotropin alpha-subunit. ii. immunochemical mapping by a monoclonal antipeptide antibody. | in order to study antigenic site(s) present in the carboxyl-terminal part of the alpha-subunit of human choriogonadotropin (hcg-alpha), we attempted to produce site-specific antibodies directed against a 34-residue synthetic peptide analogous to region 59-92 of hcg-alpha. from a fusion experiment performed with a mouse injected with hcg-alpha-(59-92)-peptide conjugated to tetanus toxoid as immunogen, we selected a monoclonal antipeptide antibody (designated fa36) which has high binding activity ... | 1988 | 2455715 |
| effect of pesticides (atrazine and lindane) on the replication of spring viremia of carp virus in vitro. | atrazine and lindane are widely employed as pesticides in agriculture, which by wash off, could contaminate the aquatic environment. in this study, they were tested in vitro on the replication of the virus of spring viremia of carp (svc) in epithelioma papulosum cyprini cell line. they were dissolved first in dmso and then in medium at their solubility limit in water (28 and 10 mg/l). the results of the kinetic titers after 72 h showed no statistically significant difference between control and ... | 1988 | 2461139 |
| the immune response of carp against dextran. an analysis of the idiotype heterogeneity. | the expression of a "species-specific" idiotype with specificity for alpha(1-6) dextran in carp is described. all tested carp anti-dextran antisera react with a rabbit anti-id (carp anti-dex) serum. the rabbit anti-id serum can be partially inhibited by the specific ligand, dextran t70 or isomaltodecaose but not or only weak with other, unrelated carbohydrates. these data confirm our statement, that a limited germline v-gene repertoire may code for antibodies in fish. | 1988 | 2463185 |
| presence of a substance p-like peptide in an acid extract of the intestinal bulb of the carp (cyprinus carpio). | 1. the effect of an acid extract of the carp intestinal bulb (eci) on guinea-pig ileum longitudinal smooth muscle (gplm) and carp intestinal bulb longitudinal smooth muscle (ciblm) was examined. 2. eci caused a concentration-dependent contraction of gplm and ciblm. this eci-induced response was reduced by atropine to 30-40% of the control, indicating that part of the contracting activity of eci is attributable to acetylcholine. the atropine-resistant contracting activity of eci was not mediated ... | 1988 | 2464388 |
| anti-dextran antibodies of carp detected by the enzyme-linked immunosorbent assay (elisa). | carp produce anti-alpha (1-6) dextran antibodies after immunization with a vaccine of leuconostoc mesenteroides b512. these antibodies can be determined by passive haemagglutination, quantitative precipitation or by elisa. in our hands the elisa has proved to be 100 times more sensitive than the passive haemagglutination test. we could not found any correlation between the anti-dextran activity estimated with the passive haemagglutination on the one and the elisa on the other hand. | 1988 | 2465680 |
| identification and immunocytochemical localization of two different carbonic anhydrase isoenzymes in teleostean fish erythrocytes and gill epithelia. | carbonic anhydrase was purified from the gills (cab) of the rainbow trout salmo gairdneri and from erythrocytes (cae) of the fresh water carp cyprinus carpio. the purification of the isozymes was confirmed by sds acrylamide gel electrophoresis. antibodies against the purified cab and cae were then raised in rabbits. specificity was verified by immunoblotting. no cross-reaction was found between them, using the immunodot technique. cab antiserum was used to specifically localize gill ca in the tr ... | 1988 | 3139588 |
| nucleotide sequence of chicken myb proto-oncogene promoter region: detection of an evolutionarily conserved element. | the nucleotide sequence of the chicken myb proto-oncogene putative promoter region was determined and compared with the corresponding sequence of the mouse c-myb gene (1). 118 bp upstream from the initiation codon suggested by gerondakis and bishop (2) for the chicken c-myb protein, a 124-bp-long conserved element was found (92% identity in chicken and mouse sequences). sequences homologous to this element were detected on southern blots of restricted genomic dnas from mouse, man, lizard, frog, ... | 1988 | 3145493 |
| primary structures of carp gonadotropin subunits deduced from cdna nucleotide sequences. | the alpha and beta subunits of carp gonadotropin (cgth) were isolated by high performance liquid chromatography. they were identified to be the subunits of cgth by bioassay and by partial n-terminal amino acid sequence analysis. to elucidate the complete primary structures of the alpha and beta subunits of cgth, cdna cloning technique was employed. the alpha and beta subunits consist of 95 and 115 amino acid residues, respectively. homology of the alpha subunit of cgth to those of mammalian gth ... | 1988 | 3246480 |
| catch-relaxing peptide (carp) decreases the ca-permeability of snail neuronal membrane. | effect of carp was investigated on snail neurones. it was found that carp decreased the slowly inactivating ca- and the ca-activated k-currents. | 1988 | 2848713 |
| development of sensitivity to maturation-inducing steroids in the oocytes of the daily spawning teleost, the kisu sillago japonica. | the responsiveness of oocytes to 17 alpha,20 beta-dihydroxy-4-pregnen-3-one (17 alpha,20 beta-dioh-p), 17 alpha-hydroxyprogesterone (17 alpha-oh-p), and silver carp gonadotropin (gth) was examined in vitro at seven different times of the day (0100, 0500, 0800, 1000, 1300, 1700, 2100 hr) in a daily spawning teleost, the kisu sillago japonica. 17 alpha,20 beta-dioh-p, 17 alpha-oh-p, and gth were effective in inducing germinal vesicle breakdown (gvbd) and ovulation in kisu oocytes. however, the ooc ... | 1988 | 3197947 |
| nucleotide sequence of carp prolactin cdna. | 1988 | 3174460 | |
| analysis of synaptic inputs to on-off amacrine cells of the carp retina. | to elucidate the synaptic transmission between bipolar cells and amacrine cells, the effect of polarization of a bipolar cell on an amacrine cell was examined by simultaneous intracellular recordings from both cells in the isolated carp retina. when either an on or off bipolar cell was depolarized by an extrinsic current step, an on-off amacrine cell was transiently depolarized at the onset of the current but no sustained polarization during the current was detected. the current hyperpolarizing ... | 1988 | 2849629 |
| in situ hybridization demonstrating coexpression of urotensins i, ii-alpha, and ii-gamma in the caudal neurosecretory neurons of the carp, cyprinus carpio. | in order to examine the coexpression of different urotensins in the same caudal neurosecretory neurons, in situ hybridization with synthetic oligonucleotide probes specific for mrnas for urotensins i, ii-alpha, and ii-gamma (ui, uii-alpha, and uii-gamma) was applied to the caudal neurosecretory system of the carp, cyprinus carpio, together with immunohistochemistry. almost all identifiable caudal neurosecretory neurons were labeled with the oligonucleotide and cdna probes for ui mrna. further, a ... | 1988 | 3056775 |
| 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 |
| localisation and identification of melanocyte-stimulating hormones in the fish brain. | the existence of melanocyte-stimulating hormone (msh) in fish brains was investigated by a range of techniques: radioimmunoassay, hplc, bioassay, and immunocytochemistry. immunoreactive alpha msh (ir alpha msh) was detected by radioimmunoassay in all regions of carp and trout brains, with the highest concentration in the basal hypothalamus. in trout, ir alpha msh cell bodies were located by immunocytochemistry only periventricularly, in the medial basal hypothalamus near the third ventricle, whe ... | 1988 | 3203871 |
| in vitro effectiveness of estradiol-17 beta, androgens, corticosteroids, progesterone, and other pregnene derivatives on germinal vesicle breakdown in oocytes of the exotic common carp cyprinus carpio (l.). | 1988 | 3198160 | |
| [acute renal failure caused by ingestion of the carp gall bladder-a report of 3 cases, with special reference to the reported cases in japan]. | 1988 | 3071564 | |
| effect of teleost gnrh on reinitiation of oocyte meiosis in goldfish, in vitro. | the effects of native and an agonist analogue of teleost gonadotropin-releasing hormone (gnrh) [(d-arg6, trp7, leu8, pro9-nhet)-gnrh; tgnrh-a] on the hormone-induced meiotic maturation of goldfish oocytes were investigated. incubation of follicle-enclosed goldfish oocytes with either carp gonadotropin (gth) or meiogenic progestogens, including 17 alpha-hydroxyprogesterone (hp) and 17 alpha,20 beta-dihydroxyprogesterone (dhp), reinitiated oocyte meiosis in vitro, as indicated by germinal vesicle ... | 1988 | 3044146 |
| influence of heat treatment on osmotic fragility of carp erythrocytes. | 1988 | 2900285 | |
| 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 |
| 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 |
| the composition of furan fatty acids in the crayfish. | capillary gas chromatography-mass spectrometry (gc-ms) analysis of the sterol ester fatty acid methyl esters of the crayfish hepatopancreas revealed the presence of at least 30 kinds of unusual furan fatty acids (f acids), which accounted for 28.49% of the total sterol ester fatty acids. on the other hand, only small amounts were found in triacylglycerols (0.5%) and phospholipids (0.7%). among the f acids, 17 acids were the hitherto unknown ones, the major component being 12,15-epoxy-13,14-dimet ... | 1988 | 27520122 |
| immunohistochemical investigation of the pituitary of the sturgeon (acipenser baeri, chondrostei). | an immunohistochemical study of the sturgeon (acipenser baeri) pituitary was undertaken using antisera directed against hormones from various classes of vertebrates, including the only pituitary hormone available from sturgeon, gonadotrophin. a positive reaction was obtained after application of antisera towards the following hormones 1-24 synthetic acth (1-24 acth), melanophore stimulating hormone (msh), ovine prolactin (oprl), ovine growth hormone (ogh), salmon growth hormone (sgh), carp gonad ... | 1988 | 24226670 |
| modulation of cone horizontal cell activity in the teleost fish retina. i. effects of prolonged darkness and background illumination on light responsiveness. | the effects of prolonged (greater than 2 hr) darkness and background illumination on the light responsiveness of cone horizontal cells were examined in isolated, superfused white perch retinas. in retinas from fish maintained in complete darkness for more than 2 hr, cone horizontal cells had a resting membrane potential of about -18 mv, and they generated only slow, low-amplitude (3-4 mv) responses even when stimulated with bright flashes. following the presentation of dim background light, the ... | 1988 | 3249224 |
| pharmacokinetics of ciprofloxacin in carp, african catfish and rainbow trout. | the plasma disposition of ciprofloxacin was studied in carp, african catfish and trout after intravenous (iv) and intramuscular (im) administration at a dose rate of 15 mg/kg. pharmacokinetic analysis of iv data showed that ciprofloxacin was well distributed (distribution volume vd(area): 3.08-5.59 litre/kg) and exhibited a similar elimination half-life of about 14 h in these 3 fish species. after im administration to carp and trout a rapid absorption was noticed; the maximum ciprofloxacin plasm ... | 1988 | 3176297 |
| unknown syndrome: abnormal facies, hypothyroidism, and severe retardation: a second patient. | in the november 1987 issue of this journal, young and simpson presented a female infant with abnormal facies (microcephaly, blepharophimosis, small, low set, posteriorly rotated ears, bulbous nose, carp shaped mouth, and micrognathia), congenital heart abnormalities (large atrial and ventricular septal defects), congenital hypothyroidism, and severe global retardation. we have observed a male newborn with a similar pattern of malformations (figs. 1 and 2). | 1988 | 3172145 |
| effect of adrenaline and blood gas conditions on red cell volume and intra-erythrocytic electrolytes in the carp, cyprinus carpio. | 1. carp, when subjected to air stress in vivo, developed a hypoxaemia associated with an acidosis due to elevation of pco2 and arterial lactate content. adrenaline and noradrenaline levels rose markedly, and the mean corpuscular haemoglobin concentration (mchc in mmol hb l-1 red blood cells) decreased, indicating swelling of the erythrocytes. 2. no effect of adrenaline could be observed in vitro after equilibration at normal ph and oxygenation level. 3. simulation of air stress in vitro, by usin ... | 1988 | 3145321 |
| evidence that a substance p-like peptide mediates the non-cholinergic excitatory response of the carp intestinal bulb (cyprinus carpio). | the participation of substance p in the noncholinergic contraction induced by transmural stimulation (tms) of the carp intestinal bulb was examined. in the presence of atropine, substance p caused the contraction of carp intestinal bulb smooth muscle in a concentration dependent manner (1 nmol/l - 1 mumol/l). the ec50 value was 28 +/- 7 nmol/l (n = 6). substance p-induced desensitization (1 mumol/l for 15 min), decreased the response to substance p and the atropine-resistant contraction induced ... | 1988 | 2467211 |
| 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 |
| the effect of temperature on immunoreactive glucagon plasma level in carp cyprinus carpio. | plasma immunoreactive glucagon levels (irg), plasma glucose levels and brain and liver glycogen concentrations were analyzed in carp (adapted to 15 degrees c) subjected to short-term temperature changes (1.6 or 11 h, at 5 degrees c or 28 degrees c, respectively) and to long-term temperature changes (21 months at 28 degrees c). the high temperature (28 degrees c) produced significant increases in irg in both short and long-term experiments. brain glycogen also decreased in both experiments wherea ... | 1988 | 3194572 |
| temperature acclimatization of the carp. cellular and molecular aspects of the compensatory response. | 1988 | 3154855 | |
| subtype of excitatory amino acid receptor in cone horizontal cells of the carp retina as specified by reversal potential measurement technique. | effects of agonists of the excitatory amino acid (eaa) transmitters were examined in carp cone horizontal cells where glutamate (glu) or aspartate (asp) is believed to act as the transmitter released from the photoreceptors. bath application of kainic (ka), quisqualic (qa) and n-methyl-d-aspartic (nmda) acids produced little effect on cone cells, indicating that their effects act directly on the horizontal cells. ka and qa (100 microm for both) produced depolarizations in the horizontal cells. t ... | 1988 | 2840614 |
| 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 |
| 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 |
| separation of gonadotropic fractions with different species specificities from tuna pituitaries. | eight different gonadotropic glycoprotein fractions were separated from the acetone-dried powder of yellow fin tuna pituitary glands by successive chromatographies on superose 12 for gel filtration and mono q for anion exchange using the pharmacia fast protein liquid chromatography system. this was preceded by preliminary separations using an ammonium sulfate precipitation method and affinity chromatography on concanavalin a-sepharose. for biological characterization, we employed two radiorecept ... | 1988 | 2838377 |
| effects of ligand size on ph and organic phosphate-dependent affinity changes in carp hemoglobin as measured by isonitrile binding. | the equilibria of the binding of methyl and ethyl isonitrile to carp hemoglobin have been measured at three ph values in the presence and absence of inositol hexaphosphate. the binding of methyl isonitrile is characterized by a higher overall dissociation constant, c1/2, and a higher hill coefficient, n, than that of the ethyl derivative. the former is consistent with the greater hydrophobicity of ethyl isonitrile, and the latter is probably due to a greater intrinsic difference or heterogeneity ... | 1988 | 3358940 |
| 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 |
| temperature effects on ph of mitochondria isolated from carp red muscle. | mitochondria isolated from red muscle of carp (cyprinus carpio) were used to investigate the effects of temperature and extramitochondrial ph (phe) on the mitochondrial ph gradient and respiratory properties. mitochondria from animals acclimated to 10 degrees c were isolated and incubated in kcl-based media with 0.2 mm lauroylcarnitine (c-12) as substrate. maximal respiratory control ratios (rcr = state 3/state 4) were 16-18 between ph 6.7 and 7.4 at 10 degrees c; rcr values were 9-12 between ph ... | 1988 | 3354709 |
| light and electron microscopic studies on various developmental stages of hoferellus cyprini (doflein, 1898). | the development of hoferellus cyprini (myxosporea) in common carp was studied by light and electron microscopy. it has been established that in the autumn the early developmental stages are located in a cell syncytium formed from the epithelium of the renal tubules. the authors share the opinion of lom and dyková [13] that each intracellular trophozoite corresponds to a primary parasitic cell which contains secondary, tertiary and quaternary cells having formed by internal cleavage. from decembe ... | 1988 | 23195094 |
| [increment of cone erg during light adaptation--carp retina (in vivo and in vitro)]. | 1988 | 3414455 | |
| light-dependent dynamics of gap junctions between horizontal cells in the retina of the crucian carp. | the dynamics of gap junctions between outer horizontal cells or their axon terminals in the retina of the crucian carp were investigated during light and dark adaptation by use of ultrathin-section and freeze-fracture electron microscopy. light adaptation was induced by red light, while dark adaptation took place under ambient dark conditions. the two principal findings were: (1) the density of connexons within an observed gap junction is high in dark-adapted retina, and low in light-adapted ret ... | 1988 | 3365755 |
| regional difference in the dendritic morphology of dopamine cells in carp retina. | the dendritic morphology of dopamine (da) cells in the inner plexiform layer of the retina of carp (body length, ca. 33 cm) was investigated by identifying their fluorescent cell bodies in isolated, aldehyde-fixed flat-mounts and injecting them iontophoretically with lucifer yellow ch under microscopic control. attention was paid to clarifying regional differences in their dendritic morphology. in the marginal zone within 0.25 mm from the retinal edge, the density of da cells was extremely high ... | 1988 | 3359333 |
| characteristics of bipolar-bipolar coupling in the carp retina. | on and off bipolar cells were identified in the light-adapted carp retina by means of intracellular recording and lucifer yellow dye injection. the receptive field centers, determined by measuring the response amplitudes obtained by centered spots of different diameters, were 0.3-1.0 mm for on bipolar cells and 0.3-0.4 mm for off bipolar cells. these central receptive field values were much larger than the dendritic field diameters measured by histological methods. simultaneous intracellular rec ... | 1988 | 3373179 |
| adaptation of intestinal morphology in the temperature-acclimated carp, cyprinus carpio l. | the effects of temperature and photoperiod acclimation upon the morphology of carp intestinal mucosa have been studied using morphometric techniques. carp intestine showed an absence of anatomical regionalisation. there was a gradual reduction in the dimensions of villi along the tract. the decrease in the dimensions of the villi was greatest in the anterior half. temperature acclimation had no effect on intestinal-somatic indices. acclimation to 10 degrees c or 30 degrees c resulted in large di ... | 1988 | 3345555 |
| interaction of parvalbumin of pike ii with calcium and terbium ions. | fluorimetric titrations of parvalbumin ii (pi 4.2) of pike (pike ii) with ca2+ and tb3+ show the cd and ef binding sites to be non-equivalent. the intrinsic binding constants of the strong and the weak sites obtained for ca2+ are: ksca = 1.6.10(8) m-1; kwca = 6.6.10(5) m-1. differences of the order of 100% were encountered between the tb3+ binding constants obtained with four different versions of titration. their average values are: kstb = 1.9.10(11) m-1; kwtb = 1.0.10(7) m-1. the distances of ... | 1988 | 3334854 |
| protein synthesis in tissues of fed and starved carp, acclimated to different temperatures. | the temperature dependence of the rates of protein synthesis in the red and white skeletal muscle of the carp (cyprinus carpio) was measured using a method which involved a single injection of tritiated phenylalanine. plasma and muscle-free phenylalanine quickly reached a plateau level at all temperatures. during the plateau phase the incorporation of label into protein was liner. muscle from fish previously acclimated to either a low temperature (8°c) or a high temperature (28°c), showed marked ... | 1988 | 24226298 |
| comparison of effects of paraquat and methidation on enzyme activity and tissue necrosis of carp, following exposure to the pesticides singly or in combination. | under aquarium conditions, treatment with the herbicide paraquat (pq) and with the insecticide methidation (md) caused cell damage and stress in carp (cyprinus carpio l.), as shown by increases in glutamate-dehydrogenase (gidh, ec 1.4.1.2), glutamate-oxalacetate transaminase (got, ec 2.6.1.1) and lactate dehydrogenase (ldh, ec 1.1.1.27) activities and in blood sugar levels. pq proved synergistic with md in certain cases as regards the harmful effect exerted. on combined treatment, dilated extrac ... | 1988 | 15092508 |
| 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 |
| [a case of acute renal failure after eating the raw gallbladder of a carp]. | 1988 | 3373090 | |
| [reaction of the carp cyprinus carpio l. at different periods of its ontogeny to the action of organophosphorus compounds]. | effect of some organic phosphorous compounds on the carp cyprinus carpio l. in consecutive stages of its development has been studied. the least and most vulnerable stages in carp's development under the action of these compounds have been identified. the gravity of disorders in fish organism on early stages and the degree of pathological changes induced by organic phosphorous compounds have been shown. embryotoxic and gonadotoxic effect of these compounds has been found. | 1988 | 3358968 |
| a study of the hydration and thermodynamics of warm-water and cold-water fish collagens. | the hydrated volumes, vh, of collagens extracted from various fish species were calculated by using the simha-einstein equation, and it was found that the hydration of warm-water fish collagen is greater than that of cold-water fish collagen (halibut). although the intrinsic viscosities of warm-water fish (bigeye-tuna, carp and catfish) collagens are almost the same, the hydrated volume of bigeye-tuna collagen is approx. 1.5 and 3 times those of carp and catfish collagens respectively. the exten ... | 1988 | 3342002 |
| gabaergic inhibition on dopamine cells of the fish retina: a [3h]dopamine release study with isolated fractions. | inner retinal cells including dopamine (da) cells were isolated and fractionated from the carp (cyprinus carpio) retina by an enzyme cell dissociation and metrizamide gradient centrifugation method. when gamma-aminobutyric acid (gaba) antagonists (bicuculline and picrotoxin) were added into the perfusate over such a cell fraction, they stimulated the release of [3h]da which had been preloaded in the cell fraction. the action of gaba antagonists was dose and ca2+ dependent. their minimal effectiv ... | 1988 | 3335837 |
| effects of [d-arg6, trp7, leu8, pro9net]-luteinizing hormone-releasing hormone (sgnrh-a) and [d-ala6, pro9net]-luteinizing hormone-releasing hormone (lhrh-a), in combination with pimozide or domperidone, on gonadotropin release and ovulation in the chinese loach and common carp. | the effects of lhrh-a and sgnrh-a alone and in combination with the dopamine receptor antagonists pimozide (pim) and domperidone (dom) on stimulation of gonadotropin (gth) secretion and ovulation in chinese loach (paramisgurnus dabryanus) and common carp (cyprinus carpio) were studied. when tested in the absence of a dopamine receptor antagonist, sgnrh-a was about 10-fold more potent than lhrh-a in stimulating gth secretion in loach, whereas these peptides were of similar effectiveness in common ... | 1988 | 3282976 |
| [study on ldh isoenzymes of hybrid yue-carp and its parents]. | 1988 | 3273660 | |
| effects of various oxygen concentrations on antioxidant enzymes and the quantity of tissue phospholipid fatty acids in the carp. | analyses were made of the phsopholipid fatty acids and the antioxidant enzymes in the carp (cyprinus carpio morpha) at three different oxygen concentrations, corresponding to hyperoxia, hypoxia and anoxia. variations of the oxygen concentration were found to influence the quantities of phsopholipid fatty acids, as well as the antioxidant enzyme activities. in hyperoxia and hypoxia the amount of polyunsaturated fatty acids in carp liver was higher than in anoxia, but in other tissues there was no ... | 1988 | 3254009 |
| comparative histochemistry of the mucoproteic cells of the hypophysis from rhamdia hilarii, hypostomus punctatus, prochilodus scrofa and cyprinus carpio (teleostei). immunohistochemical identification of the gonadotropic cells. | adenohypophyseal cells showing positive histochemical reactions for mucosubstances were classified as type i-iv in hypostomus (plecostomus) punctatus (loricariidae), rhamdia hilarii (pimelolidae), prochilodus scrofa (prochilodontidae) and cyprinus carpio (cyprinidae) according to cell shape, size, cytological characteristics and adenohypophyseal distribution. cell types i and ii are common to the four species, with each cell type showing very similar cytological and histochemical characteristics ... | 1988 | 3242625 |
| effects of dopamine on spatial properties of horizontal cell responses in the carp retina. | 1988 | 3231368 | |
| [rhythmic activity of the olfactory bulb of the carp under nembutal anesthesia]. | the effect of nembutal intraperitoneal injections upon the induced waves and orthodromic potentials of the olfactory bulb (ob) induced by odor stimulation and paired electric stimuli of the olfactory nerve was examined in immobilized by diplacine carp (cyprinus carpio l.). the nembutal anesthesia resulted in a gradual decrease in frequency of induced waves tested by orthodromic response and amplitude of spontaneous electric activity ob ob. the changes found under nembutal anesthesia in evoked el ... | 1988 | 3219368 |
| ultrastructural analysis of leucocyte interaction with tumour targets in a teleost, cyprinus carpio l. | the first step in natural killer activity, target cell binding, was investigated ultrastructurally in order to identify presumptive cytotoxic cells. after incubation of unfractioned peripheral blood cells of the carp, cyprinus carpio l., with hela tumour cells as targets, regular conjugate forming was observed. targets were surrounded by cells bearing features either of lymphocyte or monocyte/macrophage types. cells with the usual lymphocytic characteristics contained acid phosphatase positive g ... | 1988 | 3208960 |
| isolation and partial characterization of igm-like immunoglobulins from the serum of carp (cyprinus carpio l.), frog (rana ridibunda pall.) and tortoise (testudo graeca pall.). | 1. igm-like immunoglobulin fractions have been isolated by combinations of precipitation procedures and gel-filtration from the serum of three vertebrate species, representative of the classes of pisces (cyprinus carpio l.), amphibia (rana ridibunda pall.) and reptilia (testudo graeca pall.). 2. the homogeneity of the isolated fractions has been confirmed electrophoretically and immunoelectrophoretically. 3. electrophoretic mobility of igm, similar for the three species studied has been observed ... | 1988 | 3132346 |
| the effects of reserpine and lhrh or salmon gnrh analogues on gonadotropin release, ovulation and spermiation in common carp (cyprinus carpio l.). | the effects of reserpine (catecholamine depletor) and lhrh analogues on gonadotropin secretion, spermiation and ovulation of common carp were investigated. injections of reserpine alone at a dose of 1 or 7 mg/kg of body weight stimulated spermiation, and reserpine at a dose of 1 mg/kg of body weight in combination with (d-arg6, trp7, leu8, pro9, net)-lhrh (s-gnrh-a) or with (d-ala6, pro9)-lhrh (lhrh-a) at a dose of 50 micrograms/kg of body weight caused an increase of plasma gonadotropin levels, ... | 1988 | 3072624 |
| calcium action potentials in retinal cells of the carp. | 1988 | 3068589 | |
| electrocardiograms in five bipolar leads recorded from the body surface of three fish species (cyprinus carpio, oreochromis niloticus and pagrus major) in fresh or sea-water. | 1. ecgs were recorded using five bipolar leads from the body surface of porgy pagrus major and tilapia oreochromis niloticus in fresh or sea-water, or held on a dry towel. 2. the maximum qrs amplitude was detected in lead v in both species being 54 +/- 25 microv in porgy and 241 +/- 78 microv in tilapia, respectively, when the fish were held on the dry towel. 3. clear ecg waves could not be obtained from porgy in sea-water because of the porgy's small cardiac potential and leakage of the potenti ... | 1988 | 2907442 |
| effects of a high concentration of co2 on electrocardiograms in the carp, cyprinus carpio. | 1. the effects of a high concentration of co2 (pco2 = 250 mmhg and po2 = 360 mmhg in water) and ms222 (tricaine methanesulfonate, 1/8000 or 1/5000) on the electrocardiogram (ecg) in carp were examined using five kinds of bipolar leads from the body surface. 2. in the carp anesthetized with the high concentration of co2 for 30 min, the qrs duration, pq interval and and direction of the qrs axis on the frontal plane significantly changed. even after recovery from anesthesia, delay in the qrs durat ... | 1988 | 2907441 |
| effects of metal ions on the antioxidant enzyme activities, protein contents and lipid peroxidation of carp tissues. | 1. studies were performed regarding the effects of cuso4 in concentrations of 5, 10, 25 and 50 ppm and znso4 in concentrations of 10 and 100 ppm on the antioxidant enzyme activities, lipid peroxidation and protein contents of tissues of common carp (cyprinus carpio morpha l.) exposed to these pollutants for 24 hr. 2. the results demonstrated that cuso4 was more toxic than znso4 and that both treatments brought about significant changes in these parameters in carp hepatopancreas (liver), gill and ... | 1988 | 2904875 |
| the effect of isoprenaline on the phospholipid content of the compact and spongious musculature of the carp ventricular myocardium. | 1. after a single injection of 40 mg kg-1 of isoprenaline to the carp, lysophospholipids appear in the tissue of the heart ventricle, ethanolamine plasmalogens increase and choline plasmalogens decrease; phosphatidylinositol is lowered in the spongious layer only. 2. daily administration of 5 mg kg-1 of the drug leads, after 5 doses, to a dramatic decrease of the diphosphatidylglycerol content; during the subsequent 5 and 10 doses a return to normal values occurs. shifts in plasmalogens are simi ... | 1988 | 2904868 |
| [effect of baclofen and muscimol on the evoked potentials of the tectum mesencephali in the carp in response to stimulation of the visual and somatosensory afferent inputs]. | the perfusion of (+/-) 10(-5) m baclofen to the optic tectum of the carp greatly reduced evoked potential to the optic nerve stimulation and slightly inhibited evoked potential to the spinal cord stimulation. the perfusion of 10(-4) m muscimol reduced the former evoked potential as well as the latter one. the results permit supposing that tectal visual input is more sensitive to the presynaptic inhibitory influences through gabab-receptors than the somatosensory afferent input. | 1988 | 2854884 |
| optic nerve regeneration in adult fish and apolipoprotein a-i. | fish optic nerves, unlike mammalian optic nerves, are endowed with a high capacity to regenerate. injury to fish optic nerves causes pronounced changes in the composition of pulse-labeled substances derived from the surrounding non-neuronal cells. the most prominent of these injury-induced changes is in a 28-kilodalton (kda) polypeptide whose level increases after injury, as revealed by one-dimensional gel electrophoresis and autoradiography. the present study identified as apolipoprotein a-i (a ... | 1989 | 2494299 |
| structural differences between the ca2+-atpase enzymes of sarcoplasmic reticulum membrane from rabbit and carp muscles. | 1. structural features were compared in sarcoplasmic reticulum ca2+-atpase enzymes from carp (cyprinus carpio l.) and rabbit muscles. 2. both membrane preparations contained the 105,000 mol. wt ca2+ pump protein in high local density. 3. the tryptic cleavage of the carp enzyme gave different peptide fragments from those observed from rabbit enzyme. 4. addition of vanadate, ca2+ or lanthanides did not cause two-dimensional ca2+-atpase crystal formation, in contrast to the rabbit enzyme, which for ... | 1989 | 2522383 |
| the adductor mandibulae muscle in teleost fish with protrusible or non protrusible jaws: a histochemical and immunohistochemical study. | a study was made of the morphology and fibre type composition of the adductor mandibulae (am) muscle in teleosts with very protrusible (carp), moderately protrusible (cod) and non-protrusible (trout and cat-fish) jaws. in contrast to the trout and cat-fish, in which the am is formed by only 2 components (mandibular and mental), in the carp and cod there is a third portion (maxillary) which is more or less developed in relation to the extent of jaw protrusion. fibre types were identified by means ... | 1989 | 2527478 |
| inward rectifier produced by xenopus oocytes injected with mrna extracted from carp olfactory epithelium. | ionic channels encoded by mrna extracted from carp olfactory epithelium were investigated by injection into xenopus laevis oocytes. the oocytes expressed an inward rectifier k+ -channel, as detected under two-electrode voltage clamp conditions. the results were as follows. an inactivating inward current appeared on hyperpolarization and increased with increasing extracellular k+ concentrations. the 0 current potentials plotted as a function of log [k+]0 in the range between 2 to 20 mmk+ fell on ... | 1989 | 2541514 |
| spin equilibria in human methemoglobin: effects of bezafibrate and inositol hexaphosphate as measured by susceptometry and visible spectroscopy. | the effects of inositol hexaphosphate (ihp) and a second allosteric effector, bezafibrate, on the spin-state equilibria of the mixed-spin derivatives of ferric human hemoglobin a are examined. changes in spin-state equilibrium are monitored by measuring absorption spectra in the visible region (460-700 nm) as well as by direct measurements of magnetic susceptibility by means of a superconducting fluxmeter. the addition of ihp at ph 6.5 results in a measurable shift in the spin equilibria of thes ... | 1989 | 2548609 |
| spin equilibrium in human methemoglobin: effects of inositol hexaphosphate and bezafibrate as measured by resonance raman spectroscopy. | the spin equilibria of several derivatives of human methemoglobin were probed by resonance raman scattering. the intensity of lines in the raman spectrum gives a measure of the high-spin (s = 5/2) to low-spin (s = 1/2) ratio which agrees well with the spin equilibria determined from direct magnetic susceptibility measurements. the addition of bezafibrate (bzf) to methemoglobin in the absence of organic phosphate, ihp, has very little effect on the spin equilibrium, whereas in the presence of ihp ... | 1989 | 2548610 |
| the sympathetic neuro-melanophore transmission in a fresh-water indian major carp, labeo rohita (ham.). | adrenaline was effective in aggregating the melanosomes both in innervated as well as denervated melanophores. isotonic kcl could induce pigment aggregation only in innervated melanophores. adrenaline- and k+-induced pigment aggregation response in these melanophores was blocked by phentolamine: propranolol failed to do so. it is suggested that the chromatic nerves in the fish, labeo rohita are adrenergic and via post-synaptic alpha-adrenoceptors, control the melanosome aggregation. | 1989 | 2550366 |
| distribution of angiotensin i converting enzyme in male reproductive systems of various vertebrates and properties of the genital enzymes. | the distribution of the angiotensin i converting enzyme (ec 3.4.15.1, ace) in male reproductive systems of various vertebrates including non-mammalian species and properties of the genital aces were studied. in such mammals as rat, dog and pig, it has been found that ace activity is only distributed in testis and epididymis (especially in the epididymal semen), but not in accessory sex glands such as prostate, seminal vesicle and coagulating gland. in the rat and dog, most of or all epididymal a ... | 1989 | 2558511 |
| purification of carp growth hormone and cloning of the complementary dna. | the growth hormone (gh) was isolated and purified from common carp (cyprinus carpio) pituitary glands by salt precipitation and hplc on reverse-phase c18 columns. the carp gh cdna was synthesized and cloned in escherichia coli using ecori linkers and pbr322 as vector. the positive clones were selected and sequenced. the full-length carp gh cdna contains 1187 nucleotide basepairs with an open reading frame coding for the precursor form carp gh of 210 amino-acid residues. the partial amino-acid se ... | 1989 | 2920175 |
| age-dependent changes in volume and haemoglobin content of erythrocytes in the carp (cyprinus carpio l.). | carp erythrocytes were fractionated by angle-head centrifugation which yielded fractions with a linear increase in density. haematological examinations revealed that the heavier red blood cells of carp had greater volumes (mcv), more haemoglobin (mch) and higher haemoglobin concentrations (mchc) than light ones. the same experiments with human red cell fractions yielded a decrease in mcv, constant mch and an increase in mchc. haemoglobin content in individual erythrocytes was also determined by ... | 1989 | 2926316 |
| comparison of xanthine: nad+ oxidoreductase from liver of toad bufo viridis and other vertebrates. | 1. xanthine oxidoreductase was isolated from toad bufo viridis (a mainly ureotelic amphibian species) and partially purified. the enzyme occurred as a stable xanthine: nad+ oxidoreductase (ec 1.1.1.204), unconvertible to the oxidase form. 2. some properties of the enzyme resembled those of xanthine oxidoreductase from an ammonotelic fish, cyprinus carpio, and the ureotelic rat, but in other aspects it was similar to this enzyme from an uricotelic snake, natrix natrix. 3. inhibition of the toad e ... | 1989 | 2591196 |
| aldehyde dehydrogenase activity in blood from various vertebrates. | 1. aldehyde dehydrogenase activity was determined in whole blood samples from 17 selected vertebrates of 5 classes, using 3,4-dihydroxyphenylacetaldehyde (the aldehyde derived from dopamine) as substrate. 2. aldehyde dehydrogenase activity in blood was widely but unevenly distributed among the species studied. 3. mean aldehyde dehydrogenase activities in the range of 40-140 nmol/min.ml blood (measured at 37 degrees c, ph 8.8) were found in blood from man, monkey, rabbit, guinea pig and mouse (c5 ... | 1989 | 2620490 |
| in vitro effect of mammalian pituitary hormones on germinal vesicle breakdown in oocytes of major carps, labeo rohita, cirrhinus mrigala, catla catla and cyprinus carpio. | among all the mammalian pituitary hormones, luteinizing hormone (lh) was the most potent in vitro inducer of oocyte maturation in l. rohita, c. mrigala, c. catla and c. carpio. it induced significant germinal vesicle breakdown (gvbd) at concentrations of 10, 1, 0.1 and 0.01 micrograms/ml. at the highest concentration used, lh induced 77.9 +/- 5.9, 73.8 +/- 4.6, 50.3 +/- 2.8 and 40.8 +/- 1.4% gvbd in oocytes of l. rohita, c. mrigala, c. catla and c. carpio, respectively. among other hormones, fol ... | 1989 | 2632393 |
| bacterial action of fertilization envelope extract from eggs of the fish cyprinus carpio and plecoglossus altivelis. | the vitelline envelope (ve) and fertilization envelope (fe) in eggs of the fish cyprinus carpio and plecoglossus altivelis were purified by homogenization of eggs or embryos in 5 mm tris-hcl buffer, ph 7.0, containing 2 mm ethylenediamine tetraacetic acid disodium salt (edta), except for processing of ves in plecoglossus eggs, and by repeated washing wih the same buffer. to extract the outermost layer material, the purified ves and fes were processed overnight at 4 degrees c in 5 mm tris-hcl buf ... | 1989 | 2661718 |
| new trends in parasitic infections of cultured freshwater fish. | the 1980s are characterized by the appearance of new fish parasitoses, the clarification of the aetiology of diseases and new insights into the process of infection and the development of important parasites, especially myxosporidians. two phaerosporoses have entered into the foreground: swimbladder inflammation (sbi) caused by sphaerospora renicola in common carp and proliferative kidney disease (pkd) in salmonids. both diseases must be reported in the german democratic republic (gdr). the conn ... | 1989 | 2669320 |