Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| the accessory respiratory organs of clarias batrachus (linn.). | 1961 | 14477246 | |
| studies on the pituitary gland in relation to the gonadal cycle in clarias batrachus (linn.). | 1966 | 5973510 | |
| the nucleus lateralis tuberis in the fresh water teleost, clarias batrachus linn. | 1967 | 4168817 | |
| the annual cycle in the testis of the catfish: clarias batrachus l. | 1967 | 6082971 | |
| cyclical changes in the ovary of the catfish clarias batrachus (linn.). | 1968 | 5669436 | |
| [fine structure of the taste buds of catfish (clarias batrachus (l) and kryptopterus bicirrhis (cuvier and valenciennes)]. | 1969 | 5351195 | |
| ventricular secretion of neurosecretory cells in clarias batrachus linn. | 1969 | 5361998 | |
| correlative cyclical changes in the pituitary gland and the testis of a catfish, clarias batrachus (linn.). | 1970 | 5488081 | |
| effect of thyroid inhibitors on the thyrotrophs & the hypothalamo-hypophysial neurosecretory system of clarias batrachus l. | 1970 | 5469141 | |
| histophysiological studies of the interrenal gland in clarias batrachus linn. | 1970 | 5508463 | |
| neurosecretion and feed back mechanism in clarias batrachus linn. ovariectomy and administration of exogenous sex hormones. | 1970 | 5498113 | |
| the effects of metopiron on the hypothalamohypophyseal neurosecretory system of clarias batrachus linn. | 1970 | 4099685 | |
| the karyometric response of caudal neurosecretory cells in clarias batrachus to sex steroids. | 1971 | 5128303 | |
| respiration of an air-breathing catfish clarias batrachus (linn.). | 1971 | 5114033 | |
| structure of the hypothalamus of the fresh water teleost clarias batrachus (l.). | 1971 | 5141042 | |
| structure of the neurohypophysis of clarias batrachus (l.) with a note on the tetrapod-like characteristic of its hypothalamo-hypophysial vascularization. | 1971 | 4109792 | |
| redescription of bovienia serialis (bovien, 1926) (cestoidea: caryophyllidea) from the catfish clarias batrachus (l.) in india. | 1972 | 4641408 | |
| lytocestus longicollis sp. nov. (cestoidea: caryophyllidea) from the catfish clarias batrachus (l.) in india. | 1973 | 4775760 | |
| in situ demonstration of changes in the preoptico-neurohypophysial complex after electrical stimulation of the olfactory tract in the catfish clarias batrachus (linn.). | 1973 | 4710503 | |
| a comparative study of head and tail kidney peroxidase in a fish (clarias batrachus). | 1973 | 4709976 | |
| effect of starvation on blood glucose and nonprotein nitrogen levels of the fish clarias batrachus. | 1974 | 4847665 | |
| seasonal variations in blood glucose and serum calcium levels of fresh water fishes. i. clarias batrachus. | 1974 | 4833059 | |
| studies on the development of endocrine glands in fishes. iii. morphogenesis of the endocrine pancreas in clarias batrachus l. | 1974 | 4619254 | |
| histopathology of the endocrine pancreas of a fresh water fish, clarias batrachus (l.). vi. effect of cobalt chloride administration. | 1974 | 4615608 | |
| effect of alloxan administration on the blood glucose, pancreatic islets and the glycogen in some tissues of clarias batrachus (linn.). | 1974 | 4615458 | |
| regeneration of the caudal neurosecretory system in the catfish, clarias batrachus l. | 1974 | 4466147 | |
| studies on the development of endocrine glands in fishes. vii. development of the caudal neurosecretory system in clarias batrachus l. | 1974 | 4415949 | |
| effect of glucose loading on blood sugar and on the histology of the pancreatic islets in clarias batrachus (linn.). | 1974 | 4365111 | |
| seasonal infection of clarias batrachus (bloch) by lytocestus indicus moghe & parasitic effects on its haematology & histopathology. | 1974 | 4464274 | |
| digestive enzymes of three teleost fishes. | the activity of amylase, sucrase, protease and lipase has been examined in wallago attu, clarias batrachus and labeo rohita. the optimum ph value for carbohydrases ranges from 5.0 to 7.0 and that for trypsin between ph 6.8 and 7.8. lipase is active at a slightly more alkaline medium. the optimum ph for a given enzyme varies in different sections of the alimentary canal of the same fish and also from species to species. variations are also found in the optimum substrate concentration for a given ... | 1975 | 14477 |
| a histochemical study of the mucous cells in the bucco-pharyngeal region of four indian freshwater fishes in relation to their origin, development, occurrence and probable functions. | observations on the origin, development and occurrence of mucous cells in the bucco-pharyngeal region of labeo rohita (ham.), cirrhinus mrigala (ham.), catla catla (ham.) and clarias batrachus (linn.) have been made histochemically, by pas technique. the mucous cells have been found to develop from ordinary epithelial cells of the stratum malpighii which is situated immediately above the basement membrane. the different stages in the development of mucous cells are: 1. formation stage: some of t ... | 1975 | 811054 |
| histamine content of the digestive tract of a catfish clarias batrachus (linn.) in relation to spawning, sex and seasonal variation. | histamine content of the digestive tract of a catfish clarias batrachus has been estimated biologically on the atropinized guineapig ileum. a significant decrease of histamine content has been observed with the decrease of gonosomatic index (g.s.i.) during breeding season in female fishes, while no such type of change in histamine content of male fishes during breeding season has been noted. in the summer histamine content of both the sexes was signivicantly lowered in comparison with the histam ... | 1975 | 1158436 |
| alcohol inhibition of formalin induced depletion of neurosecretory material in the teleost clarias batrachus (l). | in the normal c. batrachus a fair amount of stainable neurosecretory material (nsm) is always present in all the component parts of the hypothalamo-neurohypophysial (hn) complex. when formalin was injected intraperitoneally 70 to 90% of the nsm was depleted from the hn complex. when ethyl alcohol was administered immediately after formalin treatment, the depletion of nsm was inhibited, and their staining intensity could be compared with those of untreated controls. | 1975 | 1222734 |
| on the similarity between the corticotrophs and pars intermedia cells in a teleost fish (clarias batrachus). | 1975 | 47296 | |
| effect of feeding, spawning & size on chemical constituents of the blood plasma of clarias batrachus (linn.). | 1975 | 1193705 | |
| toxic effects of endrin on hepatopancreas of the teleost fish, clarias batrachus (linn.). | 1975 | 1193698 | |
| histomorphological observations on the liver in some freshwater teleosts. | histomorphology of liver is studied in six species of teleost viz., heteropneustes fossilis, clarias batrachus, puntius ticto, danio malabaricus, nandus nandus, chana punctatus. the liver is a bilobed structure usually reddish brown in colour. there are accessory liver lobes in h. fossolis and c. batrachus. the histological examination shows compact mass of oval or polygonel hepatocytes, blood sinusoids and reticuloendothelial cells. in addition several patches of pigmented hepatocytes are also ... | 1975 | 1234395 |
| effect of electrical stimulation of the olfactory tract and the caudal spinal cord on the dahlgren cells in clarias batrachus l. | electrical stimuli applied to the olfactory tract for one minute caused partial depletion, but for two to five minutes resulted in complete depletion of the neurosecretory material (nsm) from the dahlgren cells as well as from the urophysis. however, if similar stimuli were directly applied to the caudal spinal cord for one minute, the nsm was completely depleted. the neurosecretory granules were reaccumulated in the neurons within fifteen minutes after the stimuli were cut of a rapid depletion ... | 1975 | 1229240 |
| changes in the kidney peroxidase activity in fish exposed to some industrial pollutants. | fish under abnormal environmental conditions suffer from retarded growth and other physiological dysfunctions related to thyroxine deficiency. in teleosts lacking a definite thyroid gland the kidney plays a very important role in biosynthesis of the thyroidal hormone, in which peroxidase has an indirect action. effects of some industrial pollutants and factory effluents on fish kidney peroxidase activity were recorded in ophicephalus punctatus and clarias batrachus. at concentrations of the poll ... | 1975 | 1193043 |
| antagonistic response of chlorpromazine and formalin in effecting quantitative changes in the neurosecretory material in the teleost clarias batrachus (l.). | the hypothalamoneurohypophysial complex of clarias batrachus maintains an appreciable quantity of neurosecretory material (nsm) under normal conditions. stress caused by the injection of formalin depletes 70-90% of the stainable nsm from all the component parts of the neurosecretory system, namely the nucleus preopticus (npo) the neurosecretory tract, and the neurohypophysis. formalin apparently releases the nsm and stimulates the neurons of the npo. chlorpromazine (cpz) treatment seems to cause ... | 1975 | 1189890 |
| histopathology of the endocrine pancreas of a fresh-water fish, clarias batrachus (l.). v. effect of epinephrine administration. | intramuscular administration of epinephrine in 2 mg/kg and 5 mg/kg body weight doses to clarias batrachus caused significant hyperglycemia between 12 and 18 h after treatment. the hormone produced a small decrease in the liver glycogen, but induced a notable fall in the glycogen of muscles and a transient increase in the brain glycogen. light-microscopical examination of the pancreatic islets revealed degranulation and vacuolization of the beta-cells accompanied by acute necrosis. damage to the ... | 1975 | 1108583 |
| histopathology of the endocrine pancreas of a fresh-water fish, clarias batrachus (l.) ix: effect of the new antidiabetic drug, glibenclamide (hb 419). | oral administration of glibenclamide, the new antidiabetic drug, caused hypoglycemia in clarias batrachus. the effect was maximal at 15 hours, when some fish had practically no sugar in their plasma. the hypoglycemic effect was insignificant in partially-pancreatectomized fish, indicating that the drug potentiated the effect of insulin in such animals. in fasting normal fish, the drug provoked an increase in the liver glycogen contents while in the diabetic animals, a reverse condition occurred. ... | 1975 | 808974 |
| liver phospholipid distribution in hypophysectomized catfish, clarias batrachus and heteropneustes fossilis. | the percentage of certain phospholipid fractions such as phosphatylcholine, phosphatidylserine and phosphatidylinositol was more in the liver of clarias batrachus than that of the corresponding fractions in heteropneustes fossilis. hypophysectomy in both the species resulted in an increase in phosphatidylcholine, but reduction in other fractions. the phosphatidylinositol however, remained unchanged in c. batrachus, but it disappeared in h. fossilis as a result of hypophysectomy. | 1976 | 976211 |
| thyroid hormone synthesis by pharyngeal & head kidney cell-free preparation from a teleost fish clarias batrachus l. | 1976 | 992759 | |
| histopathological effects of glucagon in a fresh water teleost clarias batrachus l.: part 1--the endocrine, pancreas, blood glucose and tissue glycogen. | 1976 | 791855 | |
| histochemistry and the functional organization of the skin of a "live-fish" clarias batrachus (linn.) (clariidae, pisces). | 1976 | 132620 | |
| studies on the development of endocrine glands in fishes. v. development of the thyroid gland in two species of teleosts. | in channa punctatus the thyroid anlage is seen 40 h after hatching and is recognized as cells aggregating in the form of follicles with no colloid. during subsequent stages of development the thyroid follicles increase in number and in 5 days old larva an active division of cells and many follicles in the form of epithelial cords are seen. in 2 months old juvenile fish several thyroid follicles and lymphatic vessels are seen enclosed by connective tissue capsule. in clarias batrachus the thyroid ... | 1976 | 1278657 |
| oxygen uptake capacity of gills and skin in relation to body weight of the air-breathing siluroid fish, clarias batrachus (linn.). | oxygen consumption through gills and skin in relation to body weight was estimated in the air-breathing catfish, clarias batrachus, under two experimental conditions, viz., (i) when access to air was allowed and (ii) when air-breathing was prevented. there was a positive correlation between vo2 (ml/hr) and body weight in both experimental conditions. oxygen consumption (ml/hr) increased by a power of 0.869 when access to air was allowed whereas the power was slightly less (b = 0.841) when air-br ... | 1976 | 1032249 |
| studies on the development of endocrine glands in fishes. i. development of the hypothalamo-hypophysial neurosecretory system in clarias batrachus l. | 1976 | 1031508 | |
| histochemical localization of lipid in the respiratory muscles of a fresh water air-breathing siluroid fish, clarias batrachus (linn.). | the histochemical localization of lipids in the respiratory muscles of clarias batrachus (linn.) has been studied. the muscles innervated by the facialis (viith) nerve contain more lipid than those innervated by the trigeminal (vth). the muscles directly concerned with the opercular suction pumps (inferior and superior hyohyoideus, adductor, levator and dilator operculi) have more lipids and suggest their sustained role in the maintainance of efficiency of the opercular suction pumps. the retrac ... | 1976 | 1023556 |
| tannic acid induced hepatic injury in clarias batrachus. | the effect of intraperitoneal administration of an aqueous solution of tannic acid was examined after different intervals of time. the results showed a gradual and progressive destruction of the liver cells and transformation of its architecture. the histological signs of liver damage appeared 2 hrs after the intoxication. mild necrosis at periphery was noted even after 1 hour. after 2 hrs hepatocytes were swollen and sinusoids were contracted. these changes became more pronounced after 12 hrs a ... | 1976 | 984432 |
| distribution of monoamine oxidase (mao) in relation to the hypothalamo-hypophyseal system of the teleost clarias batrachus (l.). | varying degrees of monoamine oxidase (mao) activity were noticed all along the hypothalamo-hypophyseal neurosecretory tract in c. batrachus. intense activity was evident on the wall of the secretory cells of the adenohypophysis, neurons of the nucleus preopticus (npo) and nucleus lateralis tuberis (nlt). however, mao activity was also observed in the cytoplasm of some neurons in the ventromedian region of the nlt and groups of cells present in the neurohypophyseal ramifications of the pars inter ... | 1976 | 978196 |
| karyometric studies of the nucleus preopticus in fish (clarias batrachus) and toad (bufo andersonii). | with the object of investigating the so called 'feedback' mechanism, whereby hormones from the various endocrine glands influence the hypothalamus in its regulation of the hypophysial tropic hormones, the activity of the nucleus preopticus (npo) has been studied by means of karyometry under experimental conditions to understand the endocrine nature of the hypothalamic nuclei. (1) oestrogen and testosterone propionate caused an increase in nuclear volume of the npo cells, which is related to the ... | 1976 | 961352 |
| monoamine oxidase localization in the ependyma and infundibular recess in the catfish clarias batrachus and its probable significance. | the presence of monoamine oxidase (mao) in the cerebrospinal fluid (csf) and mao positive tracts bridging the csf and the subependyma strongly suggest the involvement of csf in the neuroendocrine control of hypophysial function. | 1976 | 954995 |
| histopathology of the endocrine pancreas of a fresh-water fish, clarias batrachus l. vii. effects of hydrocortisone and thyroxine administration. | hydrocortisone treatment caused a hyperglycaemic state in clarias batrachus within an hour. the blood glucose values remained significantly increased for 6 days. an initial increase in liver glycogen was followed by a decrease below the normal value. the muscle and brain glycogen levels remained unaffected. a mild degranulation of b cells was seen in the early hours and a conspicuous vacuolation and necrosis of both a and b cells appeared 72-96 h after treatment. administration of thyroxine resu ... | 1976 | 793263 |
| histochemical localization of acid mucopolysaccharide in the respiratory muscles of a fresh-water air-breathing siluroid fish, clarias batrachus (linn.). | respiratory muscles involved in gill ventilation (= irrigation) of an amphibious siluroid fish, clarias batrachus (linn.) were studied by phase contrast and light microscopy after the treatment with pas. alcian blue at ph 2.5 and 1.0, dialyzed iron and toludine blue. the transverse muscle bands lightly stained with pas, alcian blue at ph 2.5 and 1.0 and dialyzed iron suggesting that the mucopolysaccharide occured in relatively low concentrations. phase contrast microscopy indicated that the tran ... | 1976 | 145107 |
| the influence of body weight on gas exchange in the air-breathing fish, clarias batrachus. | 1976 | 2441 | |
| cyclic changes in serum cholesterol levels of fresh water cat fish clarias batrachus. | 1976 | 952092 | |
| studies on ecophysiology of fish parasites: effect of trypanosome infection on the serum cholesterol levels of fishes. | serum cholesterol levels of six species of fresh water fishes were lowered due to trypanosome infection. the percentage of infection in the different species of hosts ranged from 3.27% in clarias batrachus to 16.66% in wallago attu. loss in serum cholesterol level was highest (42.39%) in the spiny eel mastocembelus armotus and lowest in the carp cirrhina mrigala (4.56%). thus hypocholesterolemia was evidently caused in the fishes by trypanosomes. | 1977 | 906626 |
| comparative histochemical study of the succinic dehydrogenase (sdh) activity in the respiratory muscles of an air-breathing siluroid fish, clarias batrachus (linn.). | 1. funcitonal morphology including origin, insertion, innervation and action of the respiratory muscles in relation to the respiratory pumps and the movement of barbels and gill filaments have been studied in a fresh-water air-breathing siluroid fish, clarias batrachus (linn.). 2. cytochemical studies were made on the succinic dehydrogenase (sdh) activity of:--abductor hyomandibularis, adductor arcus palatini, adductor hyomandibularis, adductor mandibularis, intermandibularis anterior and poster ... | 1977 | 869214 |
| histo-physiological studies on the interrenal gland of a catfish, clarias batrachus (linn.). | the effects of three drugs namely, reserpine, atropine, and adrenaline have been investigated on the interrenal gland of clarias batrachus. all the drugs bring about lesser or greater degree of hypertrophy in the interrenal gland of this fish. atropine exhibits more vigorous effect than reserpine and adrenaline. | 1977 | 616680 |
| toxicity of cadmium: a comparative study in the air-breathing fish, clarias batrachus (linn.) & in the non air-breathing one, tilapia mossumbica (peters). | 1978 | 571409 | |
| anatomical identification of the presumed electroreceptors of two air breathing catfishes, clarias batrachus and heteropneustes fossilis. | histological preparations for light microscopy have revealed for the first time the structure of the electrorecoptor of clarias batrachus and heteropneustes fossilis, the 2 indian air-breathing catfishes. these sensory organs are found to resemble the ampullary organs of many weakly electric and nonelectric electroreceptive teleost. | 1978 | 738415 |
| malathion toxicity & impairment of drug metabolism in liver & gills of the catfish clarias batrachus (linn.) | 1978 | 700796 | |
| transitory colour-change mechanism in a fresh-water teleost, clarias batrachus (l). | the rate of colour change in the fish clarias batrachus (l.) has been studied as a response from black to white background and vice versa. the 'derived ostwald index (d.o.i.)' method proposed by healey (1967) has been used to measure the melanophore responses of the fish. observations show that the fish is quite sensitive to background responses. the rate of colour change is fast. the colour change is quite rapid in both, the paling and the darkening experiments in the beginning as compared to t ... | 1978 | 751681 |
| a micromorphological and histoenzymological study on the third ventricular ependyma of the teleost clarias batrachus (l.). | the circum ventricular region of c. batrachus is highly vascular and the ependymal cells appear differently when stained with haematoxylin, silver impregnation and golgi-cox techniques. the ventricule has pas and af positive material and some ependymal cells themselves are pas positive. few af positive peptidergic and several af negative small neurons have liquor contacting terminals. golgi-cox preparations reveal a variety of forms among the tanycytes. their basal processes which are barbed or ... | 1978 | 219633 |
| effect of a new oral antidiabetic drug hb 419 (glibenclamide) on the plasma glucose & islet histology of two poikilotherms: clarias batrachus & uromastix hardwicki. | 1979 | 121105 | |
| nuclear blebs in oocytes of the fish clarias batrachus. | large nuclear blebs have been observed in oocytes of the fish, clarias batrachus. the bleb, which contains nucleoplasm, is finally extruded from the nucleus. the extruded body is dnase-sensitive, and it implies that some amount of dna is extruded from the nucleus of these oocytes. | 1979 | 573209 |
| influence of diet on the total blood and liver cholesterol levels of the catfish, clarias batrachus (linn.). | 1979 | 500153 | |
| ecophysiology of fishes: effect of starvation on blood urea levels of freshwater catfish clarias batrachus. | 1979 | 473937 | |
| functional cytology of the pituitary gland of the teleost clarias batrachus (l.). | the rpd (rostral pars distalis) is formed of two cell types. the erythrosinophilic acidophils were hypertrophied in response to ammonium sulphate treatment and dark background adaptation. the response to former may be due to osmoregulatory involvement. the pbh positive corticotrophs were markedly hypertrophied and degranulated in response to metopirone and ammonium sulphate treatments. they were moderately activated in the dark and white background adapted fish. the ppd (proximal pars distalis) ... | 1979 | 89028 |
| a histoenzymological study of the saccus vasculosus of the freshwater teleost, clarias batrachus (l.). | the saccus vasculosus (sv) of c. batrachus is comparatively small and situated latero-dorsal to the pituitary in between the lobi inferiores. it is in open communication with the third ventricle and is made up of coronet and supporting glial cells with interspersed liquor contacting neurons. these cellular constituents are arranged in one to three layers which are not thrown into folds. the pas positive nature of the apical part of some coronet cells and their continuation with the pas and af po ... | 1979 | 231344 |
| seasonal changes in cholesterol content of the muscle of the cat-fish clarias batrachus l. | 1979 | 478590 | |
| regulation of prolactin secretion by hypothalamus in some cold blooded vertebrates. | effect of homoplastic hypothalamic extract (hhe) on the release of prolactin from the pituitary gland of three aquatic animals -- the fish, clarias batrachus, the amphibian, rana tigrina and the reptile, natrix piscator was studied. release of prolactin from the pituitary gland in the above animals was blocked within 4 hours by cg 603 (100 microgram/g body wt.) injection. administration of hhe and perphenazine (15 microgram/g body wt.) in such animals resulted in significantly increased level of ... | 1980 | 7439126 |
| pituitary gonadotropin content and gonadosomatic index in clarias batrachus a fresh water teleost. | the pituitary gonadotropin content in clarias batrachus was determined by radiophosphorus assay in chicks. the levels in spawning male, post spawning male, spawning female and post spawning female were found to be 65.66, 27.7, 36.69 and 49.98 micrograms lh activity/kg body weight respectively. the gonadosomatic index (gsi) in the above groups was found to be 0.3599, 0.0763, 9.2327 and 0.4334 respectively. correlation between the gonadotropins and gsi was also worked out but was found to be stati ... | 1980 | 7437127 |
| histopathological changes induced by the sub-lethal sumithion in clarias batrachus (linn.). | 1980 | 7429575 | |
| effect of electrical stimulation of the optic nerve on the nucleus preopticus and nucleus lateralis tuberis of the catfish, clarias batrachus (linn.). | the changes in the nucleus preopticus (npo) and nucleus lateralis tuberis (nlt) of the catfish, clarias batrachus, were studied after electrical stimulation of the optic nerve. the aldehyde fuchsin (af)-positive neurosecretory material from the entire npo was depleted after a 10-min stimulation as revealed from the bulk-stained preparations and tissue sections. however, a 3-min stimulation was sufficient to cause significant hypertrophic changes in the neuronal nuclei (p less than 0.005 in the v ... | 1980 | 7374921 |
| studies on air-breathing catfish clarias batrachus (linn.) under sublethal malathion exposure. | 1980 | 6447106 | |
| some haematologic values of clarias batrachus l. following its sudden transfer to varying temperature. | 1980 | 7399586 | |
| insulin effects in clarias batrachus l.: a combined biochemical and anatomical study. | the effect of mammalian insulin was studied in a freshwater fish, clarias batrachus, at both high and low ambient temperatures. the hormone produced a significant but delayed, yet recoverable, lowering of blood glucose, a concurrent decrease in liver glycogen, and an increase in the glycogen content of muscles. the decrease in brain glycogen occurred during advanced hypoglycemia. hypoglycemic seizures developed intermittently in most of the fishes whose plasma glucose and brain glycogen levels h ... | 1980 | 7011095 |
| tannic acid-induced biochemical changes in the liver of two teleost fishes, clarias batrachus and ophiocephalus punctatus. | 1981 | 7318728 | |
| the acute toxicity of endosulfan to fresh-water organisms. | a static bioassay is performed for measuring the short-term (96 h) toxicity of endosulfan to juvenile catfish clarias batrachus, insect nymph enallagma sp. and frog tadpoles of rana tigrina. median tolerance limit, slope function, confidence limit, and presumable harmless concentration were computed. the results showed that frog tadpoles are more susceptible to endosulfan than insect nymph and catfish. morphological changes and behavioural alterations were evaluated as symptoms of endosulfan tox ... | 1981 | 7245231 |
| relative concentrations of prolactin, gonadotropin and thyrotropin in the pituitary gland and blood serum during different phases of annual reproductive cycle in the freshwater catfish, clarias batrachus. | variations in prolactin content of the pituitary gland and blood serum were studied throughout a year in relation to the concentration of gonadotrophin and thyrotrophin hormones during the different phases of annual reproductive cycle in clarias batrachus. prolactin content showed a cyclic variation. increasing trend in its potency kept pace with the rising concentration of gonadotrophin and thyrotrophin both in the pituitary gland and blood. upward movement in the above hormones started with th ... | 1981 | 7194779 |
| histological response of thyroid of the teleost clarias batrachus (l) to radioiodine (131i) treatment. | 1981 | 7239563 | |
| regeneration of gastric mucosa after aspirin induced injury in clarias batrachus (linn.). | aspirin ingestion (500 mg/kg/day) causes chronic ulceration in cardiac stomach of clarias batrachus. these gastric ulcers heal by the process of secondary union and granulation tissue formation. the healing takes place in about 40 days. different coats of stomach show marked inflammatory and vascular response during the process of healing. | 1981 | 7234070 |
| vascular corrosion replicas of chemo-baroreceptors in fish: the carotid labyrinth in ictaluridae and clariidae. | scanning electron microscopy of vascular corrosion replicas and light microscopy revealed a pair of highly vascularized tissues, the carotid labyrinths, in the dorsal head region of the channel catfish, ictalurus punctatus, the black bullhead, i. melas, and the walking catfish, clarias batrachus. the labyrinth consists of a myriad of arterioles that arise from the common carotid artery immediately distal to the origin of the common carotid from the efferent branchial (epibranchial) artery of the ... | 1981 | 7273113 |
| ddt toxicity: gluconeogenic enzymes and non-specific phosphomonoesterases in three teleosts. | in 3 fish species (labeo rohita, clarias batrachus and channa punctatus) subjected to a sublethal concentration (0.035 mg/l) of ddt continuously for 20 days both hepatic and renal acid and alkaline phosphatases were elevated, whereas the rise in glucose-6-phosphatase and fructose-1,6-diphosphatase was restricted to hepatic tissue. the variations in phosphatase levels were more pronounced in l. rohita than in the other two species. | 1982 | 6294922 |
| annual testicular cycles and correlatory histochemical changes exhibited by the nucleus lateralis tuberis (nlt) in the indian catfish, clarias batrachus (linn.). | the seasonal changes observed in the neurons of the nucleus lateralis tuberis (nlt) of clarias batrachus have been studied with particular reference to the testicular cycle throughout the year at 15 days interval. the neurons of the pars medialis (pm) and pars ventrocaudalis (pvc) subgroups of the four nlt components exhibited steady enlargements and degranulation, consistent with the spermatocyte enlargement. during spermiation phase (august), when the fishes spermiated, the neurons of pm and p ... | 1982 | 7166164 |
| preferential oxidation of linolenic acid compared to linoleic acid in the liver of catfish (heteropneustes fossilis and clarias batrachus). | the fate of [1(-14)c] linoleic acid and [1(-14)c] linolenic acid in the liver slices and also in the liver tissues of live carnivorous catfish, heteropneustes fossilis and clarias batrachus, was studied. incorporation of the fatty acids into different lipid classes in the live fish differed greatly from the tissue slices, indicating certain physiological control operative in vivo. the extent of desaturation and chain elongation of linoleic and linolenic acids into long-chain polyunsaturated fatt ... | 1982 | 6294434 |
| changes in the blood glucose and liver glycogen contents of healthy and trypanosome infected fish, clarias batrachus, following intramuscular injection of glucose solution. | changes in the blood glucose and liver glycogen contents in healthy and trypanosome infected fish clarias following the intramuscular injection of glucose solution showed a rise in both the parameters within an hour. peak levels were obtained almost simultaneously by the 2 groups in both the tissues. however, there was a rapid rise and an equally rapid decline of increased carbohydrate contents in the trypanosome infected fishes. this is attributed to the rapid consumption of sugars by the trypa ... | 1982 | 7149327 |
| evidence for the inability of the catfish heteropneustes fossilis & clarias batrachus, to biosynthesize linoleic & linolenic acids. | 1982 | 6299932 | |
| vitamin d3-induced hypercalcaemia in male catfish, clarias batrachus. | 1982 | 6286407 | |
| distribution of thyroid follicles and nerves in the kidney of a teleost, clarias batrachus (linn.). | the kidney of clarias batrachus is distinguished morphologically into head, trunk and mesonephric lobes. all parts of the kidney are provided with heterotopic thyroid follicles. the study of serial sections indicates that they are migrated from pharyngeal region along the blood vessels. they are present in the form of clusters at the opening of the blood vessels in these parts. presence of nerves in close proximity to the heterotopic thyroid follicles indicates that nerves may have some control ... | 1982 | 7183025 |
| certain biochemical responses in the air-breathing catfish clarias batrachus exposed to sublethal carbofuran. | biochemical changes in the air-breathing catfish, clarias batrachus (linn.) exposed to a sublethal level of carbofuran (2,3-dihydro-2,2-dimethyl-7-benzofuranyl methylcarbamate) at 0.5 ppm concentration in ambient water for a period of 30 days were assessed. a small reduction in growth rate was observed in the fish treated with 0.5 ppm carbofuran for 60 days although no mortality or any apparent symptom of toxicity could be noted. studies were carried out on the activities of certain enzymes of i ... | 1982 | 7123566 |
| pesticide-induced dysfunction in carbohydrate metabolism in three freshwater fishes. | in the present investigation, the effect of sublethal fractions (1/4th, 1/8th and 1/16th of 96-hr lc50) of thiotox and dichlorvos on blood glucose, lactate, and liver and muscle glycogen levels of clarias batrachus, saccobranchus fossilis, and mystus vittatus, exposed for 30 days, have been studied. it was observed that blood glucose and lactate levels increased from 29.13 to 98.36% and from 10.88 to 36.36%, respectively. the liver and muscle glycogen decreased from 22.99 to 69.30% and from 5.19 ... | 1983 | 6617605 |
| the effects of a few xenobiotics on certain phosphatases in the plasma of clarias batrachus and cirrhina mrigala. | the effects of sublethal concentrations 1/2, 1/4 and 1/8 fractions of 96-h lc50 of aldrin and swascofix cd-38 on alkaline, acid and glucose-6-phosphatases in the plasma of clarias batrachus and cirrhina mrigala were studied. these enzymes increased after exposure of fish to both xenobiotics. the increase was maximal after 20 days exposure to the highest concentrations. the enzyme increase was greatest in the fish exposed to aldrin. | 1983 | 6298978 |
| identification of the cell types in the rostral pars distalis of the pituitary gland of the catfish, clarias batrachus (linn). | the cells in the rostral pars distalis (rpd) of the hypophysis of the catfish, clarias batrachus were distinguished into 2 types by tinctorial affinities, and their functional significance was ascertained experimentally. the lead haematoxylin (pbh)-positive cells of the rpd, herein referred to as the cell type 1, are in the form of a 3-8 cell layer thick palisade along the border between the neurohypophysis (nh) and the rpd. administration of metopirone caused significant stimulatory changes in ... | 1983 | 6305235 |
| induction of ovulation and spawning in the catfish, clarias batrachus (l.) by prostaglandin f2 alpha. | administration of low doses of prostaglandin f2 alpha (pgf2 alpha), i.e. 10 and 100 ng/g b.wt, was ineffective in inducing ovulation and spawning in mature catfish. however, doses of 200 ng/g b.wt of pgf2 alpha elicited partial response, and 500 ng/g b.wt of pgf2 alpha induced profuse ovulation and spawning similar to that induced by administration of human chorionic gonadotropin (hcg). | 1983 | 6572600 |
| an enzymecytochemical study on the adrenal of the freshwater teleost, clarias batrachus (l.). | the adrenal homologue of c. batrachus is distributed around the postcardinal vein in the pronephric head kidney. the cortical cells are round or oval in shape. they showed positive reaction for total lipid, glycogen and ascorbic acid. their intense delta5-3beta hsdh activity indicates their capacity for steroid biosynthesis. in addition, the cortical cells of c. batrachus exhibited strong g-6-pd, nadph diaphorase, nadh diaphorase, mao and weak sdh and ldh activity. the presence of mao suggests t ... | 1983 | 217796 |
| changes in tissue lipid and cholesterol content in the catfish clarias batrachus (l.) exposed to cadmium chloride. | 1984 | 6713143 |