Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| the cardiac cycle and the effects of neurohumors on myocardial contractility in the asiatic eel anguilla japonica, timm. & schle. | 1975 | 201 | |
| morphochemical analysis of mucosubstances in some epithelial tissues of the eel (anguilla japonica). | in attempts to gain insight into the nature of mucosubstances in the eel epithelial tissues, the epidermis and epithelia lining the gill and intestine of the fish have been reacted for a series of light microscopic stainings of mucosaccharide and protein histochemistry under normal and experimental conditions. the present morphochemical analyses indicate that (1) the mucosubstances of the epidermis are found within two well differentiated cell types, goblet and clavate cells which elaborate a ne ... | 1975 | 124717 |
| identification of organic sulfur compounds transferred to fish from petroleum suspension. | the authors attempted to determine if the organic sulfur compounds usually contained in a crude oil could serve as a marker of oil pollution in fish. eels (anguilla japonica temminck et schlegel) were maintained in a controlled laboratory environment of water with a suspension of crude oil. gas chromatography-mass spectrometry and mass chromatography of eel flesh extract showed the presence of organic sulfur compounds of alkyl-(from mono- to pentametyl) benzothiophenes, dibenzothiophene and alky ... | 2003 | 154827 |
| effects of glucagon on amino acid metabolism in japanese eels, anguilla japonica. | 1977 | 200519 | |
| effect of hypophysectomy on the chemical composition and intermediary metabolism of the japanese eel, anguilla japonica. | 1978 | 208922 | |
| relationship between essential fatty acid requirements of aquatic animals and the capacity for bioconversion of linolenic acid to highly unsaturated fatty acids. | 1. [1-14c]linolenic acid was injected into the rainbow trout, salmo gairdnerii, ayu, plecoglossus altivelis, eel, anguilla japonica, red sea bream, chrysophrys major, rockfish, sebastiscus marmoratus, globefish, fugu rubripes rubripes and prawn, penaeus japonicus (molting stage d"1-d2), and the bioconversion of linolenic acid (18:3 omega 3) to highly unsaturated fatty acids such as eicosapentaenoic (20:5 omega 3) and docosahexaenoic (22:6 omega 3) acids was investigated. 2. linolenic acid was co ... | 1979 | 233802 |
| intestinal water transport and chloride pump in relation to sea-water adaptation of the eel, anguilla japonica. | 1975 | 240556 | |
| the effects of prolactin, cortisol and calcium-free environment on water influx in isolated gills of japanese eel, anguilla japonica. | 1975 | 241555 | |
| angiotensin and water intake in the japanese eel, anguilla japonica. | 1979 | 478280 | |
| histological and cytological studies on the liquor contacting peptidergic neurons in the preoptic nucleus of the japanese eel (anguilla japonica). | liquor contacting peptidergic neurons (lcpns) in the preoptic nucleus of the japanese eel (anguilla japonica), are investigated submacroscopically, light microscopically, electron microscopically (transmission and scanning) and histochemically. lcpns appear in 8--13 per cent of all neurons constituting the preoptic nucleus and their cytoplasm contains many secretory granules stained by aldehyde-thionin or chrome hematoxylin. lcpns have an epithelial cell-like polarity and their cytoplasmic organ ... | 1979 | 539883 |
| effect of eel calcitonin on serum electrolytes in the eel anguilla japonica. | 1978 | 631554 | |
| the respiratory metabolism of the japanese eel, anguilla japonica: effects of ambient oxygen, temperature, season, body weight, and hypophysectomy. | 1978 | 669252 | |
| morphological changes in the esophageal epithelium of the eel, anguilla japonica, during adaptation to seawater. | the esophageal epithelium of the japanese eel, anguilla japonica, was studied by light and electron microscopy. in freshwater-adapted eels, longitudinal folds of the mucosal surface are simple in form and lined by a stratified epithelium composed of mucous cells, filament- and ribosome-rich cells. mucous cells are numerous. the filament-rich cells form the outermost and the basal layers of the stratified epithelium and are scattered in the middle zone among the mucous cells. they are firmly boun ... | 1978 | 688374 |
| effect of cortisol on the metabolism of the eel, anguilla japonica. | 1978 | 689354 | |
| effect of glucagon on the metabolism of the eel, anguilla japonica. | 1978 | 689355 | |
| increased calcitonin levels during ovarian development in the eel, anguilla japonica. | 1978 | 750287 | |
| karyological confirmation of conspicuous zw sex chromosomes in two species of pacific anguilloid fishes (anguilliformes: teleostomi). | leukocyte and kidney cell cultures were used to examine the sex chromosomes of japanese freshwater eels (anguilla japonica) and conger eels (astroconger myriaster). the conspicuous presence of zw sex chromosomes, due to a drastic reduction in size of the w, was confirmed in both species, where the z was the largest metacentric and the w was the smallest metacentric in a diploid karyotype of 38 chromosomes in both species. these species are the first examples of the zw type of heteromorphism in e ... | 1979 | 761483 |
| the effect of hypophysectomy and prolactin treatment on the osmotic water influx into the isolated gills of the japanese eel (anguilla japonica). | 1977 | 871995 | |
| the effects of acetylcholine, biogenic amines and other vasoactive agents on the cardiovascular functions of the eel, anguilla japonica. | the blood pressure in the cardinal vein, cardiac chambers and ventral and dorsal aortae have been recorded from conscious eels in water. at low doses, acetylcholine reduced the heart rate but increased the transbranchial differential blood pressure. the effects were abolished by atropine but not by tubocurarine. at doses in excess of 0.1 mug/kg, a secondary rise in arterial blood pressure was observed which could be abolished by bretylium, phentolamine or phenoxybenzamine. catecholamines did not ... | 1976 | 932655 |
| karyotype conservation and difference in dna amount in anguilloid fishes. | the two pacific anguilloid sishes anguilla japonica and astroconger myriaster, belonging to the different families, appear to have identical chromosome numbers (2n = 38) and karyotypes, including one pair of conspicuous heteromorphic chromosomes in females. cytophotometric measurements, however, indicate a considerable difference in dna content between the two species. | 1976 | 935856 |
| nephroblastomas in the japanese eel, anguilla japonica temminck and schlegel. | nephroblastomas were observed in 50 japanese eel reared at a farm for 5 to 9 months from 1989 after collection in the wild. the tumors, arising from the trunk kidney near the anus, were noted externally as abdominal swellings and varied in size from 30 to 75 mm in maximum diameter. most were elastic, solid, and well encapsulated. histologically, the nephroblastomas were composed of combinations of three main tissue elements. spindle- or oval-shaped cells resembling human blastema cells were obse ... | 1992 | 1314699 |
| growth hormone (gh)-dependent hepatic gh receptors in the japanese eel, anguilla japonica: effects of hypophysectomy and gh injection. | control mechanisms of growth hormone (gh) receptors in the eel liver were examined by following the time course of changes in total (mgcl2-treated membranes) and free (untreated membranes) gh-binding sites after hypophysectomy and replacement therapy with homologous gh. both total and free binding sites decreased significantly 1 week after hypophysectomy. scatchard analysis indicated that the reduction in gh receptors was primarily due to a decrease in the number of binding sites, rather than to ... | 1992 | 1577242 |
| effects of insulin-like growth factor-i and insulin on the in-vitro uptake of sulphate by eel branchial cartilage: evidence for the presence of independent hepatic and pancreatic sulphation factors. | the possible roles of insulin-like growth factor-i (igf-i) and insulin in regulating cartilage growth were studied in the teleost anguilla japonica. significant sulphation activity was found in the extracts of pancreas, liver and muscle, but not in those of kidney, intestine or spleen. the hepatic sulphation activity was significantly decreased by hypophysectomy or by fasting for 14 days, suggesting that this activity is regulated by pituitary function and nutritional status. northern blot analy ... | 1992 | 1613424 |
| presence of prolactin receptors in eel liver and carp kidney and growth hormone receptor in eel liver. | 1. 125i-labelled ovine prolactin and bovine growth hormone were used to test for the presence of prolactin and growth hormone receptors in membrane prepared from tissues of the white eel anguilla japonica, the carp ctenopharynogodon idellus and the ricefield eel monopterus albus. 2. high levels of specific 125i-labelled ovine prolactin binding were found in white eel liver membranes and carp kidney membranes. 3. high levels of specific 125i-labelled bovine growth hormone binding were detected in ... | 1991 | 1678335 |
| c-reactive protein in eel: purification and agglutinating activity. | c-reactive protein was highly purified from japanese eel (anguilla japonica) serum by precipitation with phosphatidyl-choline and ca2+. on sds-page, eel c-reactive protein (ecrp) migrated as a single band with a molecular weight of 24,000 under reducing and 23,500 under non-reducing conditions. the molecular weight of native ecrp was estimated to be 120,000 by sephacryl s-300 gel filtration. the ecrp was detected within the albumin region on immunoelectrophoresis. the ecrp showed an agglutinatin ... | 1991 | 1900197 |
| isolation and characterization of japanese eel prolactins. | a highly purified prolactin (prl) was isolated from the pituitary of the japanese eel (anguilla japonica) by extraction with acid-acetone, gel filtration on sephadex g-75, and reversed-phase hplc on tsk-gel ods 120t and on tsk-gel tms 250. eel prl is comprised of two variants (eprl i and ii), which were separated by hplc on an ods column. the two prls were also secreted by organ-cultured pituitaries in a defined medium. after being dialyzed against distilled water and lyophilized, the medium was ... | 1991 | 2055439 |
| development of a homologous radioimmunoassay for eel prolactin. | a highly specific and homologous radioimmunoassay (ria) for the measurement of prolactin (prl) in the plasma and the pituitary of the eel was developed using a rabbit antiserum to eel prl. prl was purified from the pituitary of japanese eel (anguilla japonica). pituitary extracts and plasma from the japanese and european eels exhibited displacement curves parallel to the eel prl standard. plasma and pituitary extracts from chum salmon, rainbow trout, japanese charr, tilapia, goldfish, and carp, ... | 1991 | 2055440 |
| human chorionic gonadotropin induces all stages of spermatogenesis in vitro in the male japanese eel (anguilla japonica). | in the cultivated male japanese eel, spermatogonia are the only germ cells present in the testis. using a newly developed organ culture system, we obtained evidence that human chorionic gonadotropin (hcg) can induce the entire process of spermatogenesis, in vitro, from spermatogonia to spermatozoa within 24 days. the hcg-induced spermatogenesis in vitro was accompanied by a marked activation of sertoli cells and leydig cells, occurring prior to the beginning of spermatogonial proliferation. thes ... | 1991 | 2060708 |
| hormonal induction of all stages of spermatogenesis in vitro in the male japanese eel (anguilla japonica). | the importance of gonadotropins and androgens for spermatogenesis is generally accepted in vertebrates, but the role played by specific hormones has not been clarified. under cultivation conditions, male japanese eels (anguilla japonica) have immature testes containing only premitotic spermatogonia, type a and early-type b spermatogonia. in the present study, a recently developed organ-culture system for eel testes was used to determine in vitro effects of various steroid hormones on spermatogen ... | 1991 | 2062857 |
| purification and characterization of bilirubin udp-glucuronyltransferase from the liver of eel, anguilla japonica. | 1. the enzyme bilirubin uridine diphosphate glucuronyltransferase (udpgt) was purified and characterized from the liver of eel, anguilla japonica. 2. the molecular weight of the enzyme was 88,000. 3. the optimal working ph of the enzyme was 7.5-8.0. the optimal working temperature of the enzyme was around 46 degrees c. 4. the km of bilirubin and uridine diphosphate glucuronic acid for this enzyme was 1.6 mm and 1.8 mm respectively. 5. the concentration of bilirubin did not show any significant e ... | 1990 | 2109666 |
| ultrastructural and cytochemical study of elastic fibers in the ventral aorta of a teleost, anguilla japonica. | previous studies have revealed that amorphous elastin and microfibrils are structural entities of mammalian elastic fibers. elastin shows a wide phylogenetic distribution, but the presence of elastin-associated microfibrils has not been demonstrated in teleost aorta. thus, we have ultrastructurally and cytochemically examined elastic fibers in the ventral aorta of eel, a teleost, by utilizing routine uranyl acetate and lead double staining, the tannic acid (ph 7.0)-uranyl acetate (ta-ua) method, ... | 1990 | 2297080 |
| glucose transport in fish erythrocytes: variable cytochalasin-b-sensitive hexose transport activity in the common eel (anguilla japonica) and transport deficiency in the paddyfield eel (monopterus albus) and rainbow trout (salmo gairdneri). | erythrocytes from individual common eels (anguilla japonica temminck and schlegel) exhibited widely variable initial rates of cytochalasin-b-sensitive 3-o-methyl-d-glucose (3-omg) zero-trans influx, in the range of 0-19.5 mmol l-cells-1 h-1 (5 mmol l-1 extracellular concentration at 20 degrees c, 50 animals tested). storage of cells at 4 degrees c in a glucose-containing medium for up to 72 h had no effect on 3-omg uptake, and there was no correlation between the sugar permeabilities of erythroc ... | 1990 | 2307927 |
| effects of recombinant eel growth hormone on the uptake of [35s]sulfate by ceratobranchial cartilages of the japanese eel, anguilla japonica. | effects of growth hormone (gh) on the synthesis of mucopolysaccharide by ceratobranchial cartilages of the japanese eel, anguilla japonica, were examined by monitoring the in vitro uptake of [35s]sulfate. the [35s]sulfate uptake decreased rapidly to one-third of the initial level during the first 3 days after hypophysectomy, and decreased gradually thereafter. when hypophysectomized eels were injected intramuscularly with recombinant eel gh (2 micrograms/g), the plasma gh concentrations increase ... | 1990 | 2391030 |
| evidences for the presence of a somatomedin-like plasma factor(s) in the japanese eel, anguilla japonica. | the indirect action of growth hormone (gh) through a somatomedin-like plasma factor(s) on the synthesis of mucopolysaccharides in the ceratobranchial cartilages of the japanese eel, anguilla japonica, was studied by monitoring the uptake of [35s]sulfate in vitro. addition of plasma obtained from intact eels significantly stimulated the sulfate uptake by the cartilages of hypophysectomized eel, whereas plasma from hypophysectomized eels had no effect. on the other hand, the plasma from hypophysec ... | 1990 | 2391031 |
| molecular cloning of eel growth hormone cdna and its expression in escherichia coli. | cdna clones coding for growth hormone (egh) of japanese eel (anguilla japonica) have been isolated from a cdna library prepared from pituitary gland poly(a)+ rna. the nucleotide sequence of the egh cdna was determined. it codes for the prehormone of 209 amino acids (aa) including a putative signal peptide of 19 aa. the deduced amino acid sequence was identical with that determined for egh protein. the primary structure of egh was compared with those of other species growth hormones (chum salmon, ... | 1988 | 2468582 |
| the histochemistry of urea-unmasked glycosaminoglycans in the skin of the eel, anguilla japonica. | in the connective tissues of the dermis and subcutis of the eel skin, the histochemistry of urea-unmasked glycosaminoglycans has been studied by means of combined staining and enzyme digestion procedures. the staining procedures employed were alcian blue (ab) ph 1.0, ab ph 2.5, aldehyde fuchsin (af), periodic acid-schiff (pas), ab ph 2.5-pas, high iron diamine (hid) and low iron diamine (lid) methods, whereas the enzymes used were streptomyces and testicular hyaluronidases, chondroitinases abc a ... | 1985 | 2579932 |
| occurrence of bilirubin-ix beta in the gallbladder bile of eel, anguilla japonica. | bilirubin-ix beta isomer was detected in the bile of eel, anguilla japonica, as evidenced by high-performance liquid chromatography (hplc) analysis of free acid and its ethyl anthranilate diazo derivatives. bilirubin-ix beta accounted for 16.7 +/- 6.0 (mean +/- s.d.) percent of the total bilirubins in the bile of 40 eels analysed, and the percentage was much higher than that reported in the biles of mammals. | 1989 | 2804119 |
| birefringent spores differentiate encephalitozoon and other microsporidia from coccidia. | tissue sections containing protozoa with birefringent spores indicate an infection by microsporidia. hematoxylin and eosin (he) does not affect spore birefringence, but some special stains (goodpasture, brown and brenn, or gram) obscure it. encephalitozoon cuniculi from an infected puppy, glugea stephani from the winter flounder pseudopleuronectes americanus, and plistophora sp. from the japanese eel anguilla japonica all have birefringent spores. encephalitozoon was studied first and then the t ... | 1988 | 3134761 |
| 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 |
| isolation of two forms of growth hormone secreted from eel pituitaries in vitro. | two forms of growth hormone (gh) were purified by chromatofocusing of medium from cultured japanese eel (anguilla japonica) pituitaries. the pituitaries were organ-cultured in eagle's minimum essential medium with earle's salts. following polyacrylamide gel electrophoresis of the medium at ph 9.5, two prominent bands were seen with rf 0.36 and 0.29; they were designated as eghi and eghii, respectively. seven-hundred fifty milliliters of medium, in which 260 pituitaries were cultured for 6-10 wee ... | 1987 | 3549441 |
| volume-sensitive taurine transport in fish erythrocytes. | taurine plays an important role in cell volume regulation in both vertebrates and invertebrates. erythrocytes from two euryhaline fish species, the eel (anguilla japonica) and the starry flounder (platichthys stellatus) were found to contain high intracellular concentrations of this amino acid (approximately equal to 30 mmol per liter of cell water). kinetic studies established that the cells possessed a saturable high-affinity na+-dependent beta-amino-acid transport system which also required c ... | 1987 | 3585985 |
| primary structure of eel (anguilla japonica) growth hormone. | two molecular forms of growth hormone, ghs i and ii, were isolated from a culture medium of the eel pituitary (anguilla japonica). the complete amino acid sequence of gh i was determined in the present study. the hormone was reduced, carboxymethylated, and subsequently cleaved with cyanogen bromide and enzymes. intact eel gh i was also digested with enzyme. the resulting fragments were separated by reverse-phase high-performance liquid chromatography (hplc) and subjected to sequence analysis by ... | 1987 | 3609715 |
| a comparative study on the binding characteristics of the tight serum biliverdin-protein complexes in two fishes: anguilla japonica and clinocottus analis. | the binding characteristics of biliverdin to its carrier protein in the blue-green blood of clinocottus analis (woolly sculpin) and anguilla japonica (freshwater eel) were operationally defined by various chemical probing methods and spectra analysis. the biliverdin in c. analis is a rotatable coiled molecule enveloped in a hydrophobic pocket of its carrier protein. the biliverdin in a. japonica is an open form molecule with external hydrogen bond or weak ester bond interacting with the carrier ... | 1986 | 3743032 |
| sodium-retaining activity of chum salmon prolactin in some euryhaline teleosts. | sodium-retaining activity of chum salmon prolactin (prl) was examined in several euryhaline teleosts. chum prl was 100 times more potent than ovine prl in maintaining plasma sodium levels in the hypophysectomized killifish, fundulus heteroclitus, transferred from 50% seawater to fresh water. the effects of prls were parabolic, high doses of the hormones being less effective than low doses. when injected into seawater-adapted fry of the ayu, plecoglossus altivelis, or into juvenile rainbow trout, ... | 1986 | 3781235 |
| characterization of an anionic trypsin from the eel (anguilla japonica). | an enzyme, isolated from the pancreas of the eel anguilla japonica and designated as anionic trypsin 1, had a molecular weight of 26,000 and an isoelectric point of 5.5. the amino acid composition of the enzyme was similar to that of bovine cationic trypsin as well as anionic trypsins from other species of fish. the enzyme was stable at ph 6 to 9 in the presence of calcium ions. km and kcat values of the enzyme for n-tosyl-l-arginine methyl ester and n-tosyl-l-lysine methyl ester were quite simi ... | 1985 | 3967484 |
| purification and some properties of two anionic trypsins from the eel (anguilla japonica). | two anionic enzymes, designated as trypsins 1 and 2, were purified from the pancreas of the eel anguilla japonica by deae-cellulose column chromatography and sephadex g-75 gel filtration. the final preparation of trypsin 1 was homogeneous but that of trypsin 2 still contained impurities. both enzymes had similar ph optima of near 8.3 for the hydrolysis of n-tosyl-l-arginine methyl ester. trypsin 1 was stabilized by calcium ions but the stability of trypsin 2 was not affected by calcium ions. bot ... | 1985 | 3967490 |
| identification and synthesis of [1-asparagine, 5-valine, 9-glycine] angiotensin i produced from plasma of american eel anguilla rostrata. | the major peptide produced by incubation of american eel (anguilla rostrata) plasma with the eel kidney extract was identified as [1-asparagine, 5-valine, 9-glycine] angiotensin i (i). two minor peptides were also identified as [1-aspartic acid, 5-valine, 9-glycine] angiotensin i (ii) and [5-valine, 9-glycine] angiotensin i-(3-10)-octapeptide (iii). these structures were further confirmed by comparison of these peptides on high-pressure liquid chromatography (hplc) and high-performance thin-laye ... | 1985 | 3979804 |
| study on a special binding phenomenon of biliverdin in the blood of the eel, anguilla japonica. | biliverdin is bound firmly with a plasma protein in the blood of the eel, anguilla japonica. the firm binding, although likely noncovalent, could be formed only in vivo under the experimental conditions. characterization of the carrier protein indicated that it is a serum albumin. a similar phenomenon is not detectable in ten other fish species examined in this study. | 1985 | 4028686 |
| the effects of bovine prolactin, sea water and environmental calcium on water influx in isolated gills of the euryhaline teleosts, anguilla japonica and salmo gairdnerii. | 1974 | 4153722 | |
| [on the green chromoprotein of the blood of the japanese eel (anguilla japonica)]. | 1967 | 4229302 | |
| hormonal effect on na-k-atpase activity in the gill of japanese eel, anguilla japonica, with special reference to seawater adaptation. | 1972 | 4265600 | |
| effects of acth and cortisol on water movement in isolated intestine of the eel, anguilla japonica. | 1968 | 4301352 | |
| renin and euryhalinity in the japanese eel, anguilla japonica. | 1966 | 4306796 | |
| effects of hypophysectomy and salinity change on plasma cortisol concentration in the japanese eel, anguilla japonica. | 1969 | 4314473 | |
| plasma cortisol concentration and the rate of intestinal water absorption in the eel, anguilla japonica. | 1971 | 4327140 | |
| fine structure of the lateral-line organ of the common eel, anguilla japonica. | 1972 | 4334619 | |
| some factors regulating water intake by the eel, anguilla japonica. | 1. internal as well as external factors affecting water ingestion in the eel were analysed using oesophagus-cannulated eels. 2. acute withdrawal of the blood induced an immediate drinking response in the freshwater eel, whereas infusion of a large amount of hypertonic saline interrupted the copious drinking observed in the seawater eel. 3. the freshwater eel responded to slow infusion of hypertonic nacl solution by constant drinking. 4. inhibition of drinking was observed in the seawater eel by ... | 1974 | 4443754 |
| the effects of organic phosphates on the oxygen equilibria of two distinct hemoglobins of the eel, anguilla japonica. | 1974 | 4545251 | |
| ultimobranchial calcitonin of the eel, anguilla japonica. | 1972 | 4678354 | |
| plasma renin activity in japanese eels (anguilla japonica) adapted to seawater or in dehydration. | 1973 | 4724758 | |
| development and degeneration of the chloride cell during seawater and freshwater adaptation of the japanese eel, anguilla japonica. | 1970 | 5412831 | |
| monamine oxidase in the hypothalamo-hypophysial region of the teleosts, anguilla japonica and oryzias latipes. | 1971 | 5541845 | |
| on the fine structure of corpuscles of stannius of the eel, anguilla japonica. | 1967 | 5591460 | |
| hemoglobins from erythrocytes of the eel, anguilla japonica. ii. further studies on the properties of two hemoglobins. | 1968 | 5655084 | |
| development of the caudal and hypothalamic neurosecretory systems of the eel, anguilla japonica. | 1965 | 5862487 | |
| malformed caudal neurosecretory system in the eel, anguilla japonica. | 1965 | 5862488 | |
| an electron microscopic study of the thyroid gland of the silver eel, anguilla japonica. (a part of phylogenic studies of the fine structure of the thyroid). | 1966 | 6008494 | |
| effects of hypophysectomy and urophysectomy on water and sodium transport in isolated intestine and gills of japanese eel (anguilla japonica). | 1967 | 6072677 | |
| immunocytochemical identification of thyrotropin (tsh)-producing cells in pituitary glands of several species of teleosts with antiserum to human tsh beta subunit. | a rabbit antiserum raised against human thyrotropin (tsh) beta subunit (anti-human beta-tsh) was used to identify tsh cells in the pituitaries of five species of teleosts by means of the unlabeled antibody peroxidase-antiperoxidase (pap) technique. the anti-human beta-tsh reacted only with polygonal basophils located in the rostral pars distalis (rpd) in the pituitaries of sexually immature eel (anguilla japonica). in the pituitaries of medaka (oryzias latipes) and white-edged rockfish (sebastes ... | 1983 | 6342806 |
| effects of prolactin and environmental calcium on osmotic water permeability of the gills in the eel, anguilla japonica. | the effects of prolactin and environmental calcium on branchial osmotic water permeability were examined using gill arches isolated from freshwater-adapted eels (anguilla japonica). the gill arches were incubated for 1 hr in deionized water (dw) or in various concentrations of electrolyte solutions and the rate of osmotic water influx was calculated from the weight change. addition of 1.0 mm calcium to the incubation medium (dw) resulted in an almost instantaneous reduction in the rate of water ... | 1984 | 6698394 |
| drinking induced by angiotensin ii in fishes. | among 20 species of freshwater fishes examined, pseudorasbora parva, rhodeus ocellatus, cobitis anguillicaudatus, carassius auratus, oryzias latipes, gambusia affinis, and gyrinocheilus anymonieri were found to drink water like seawater fishes, while 13 remaining species did not drink. for fish species found exclusively in fresh water, angiotensin ii (aii) treatment did not induce drinking. in contrast, those freshwater fishes which survive in estuarine brackish water (leuciscus hakonensis, c. c ... | 1983 | 6840524 |
| hypocalcemic effect of homologous angiotensin-like substances produced by the renin-like enzyme in the corpuscles of stannius in the japanese eel anguilla japonica. | 1982 | 7044887 | |
| vibrio vulnificus biogroup 2: new biogroup pathogenic for eels. | clinical and nonclinical isolates of the lactose-positive vibrio vulnificus were compared with vibrio strains isolated from lesions on eels (anguilla japonica) cultured commercially in japan. strains were compared phenotypically and antigenically, for pathogenicity to mice and eels, and for genetic relatedness. the strains isolated from diseased eels differed phenotypically from the original species description of v. vulnificus in that they were negative for indole production, ornithine decarbox ... | 1982 | 7138004 |
| further studies on the absence of hypocalcemic effects of eel calcitonin in the eel, anguilla japonica. | 1981 | 7215772 | |
| electron microscope study of vertebrate liver innervation. | liver fine structure was studied in various groups of vertebrates to reveal intrahepatic nerves. nerve fibers were found in the connective tissue of the liver in all mammals, birds, and reptiles studied (japanese monkey, crab-eating monkey, rabbit, guinea pig, rat, golden hamster, pigeon, japanese quail, and turtle, pseudemys scripta). nerve fibers also made direct contact with hepatocytes in these animals except for the rat and the golden hamster. intrahepatic nerves were rare or absent in amph ... | 1981 | 7316686 |
| reconstruction of the gill from single-cell suspensions of the eel, anguilla japonica. | minute gill arches, about 2 mm in length and with 17-20 pairs of filaments, were reconstructed from single-cell suspensions of the adult eel gill. mixed populations of the dissociated cells were cultured with growth medium (ph 7.2-7.4) either in a rose chamber or in a roller tube at 20 degrees c. single cells began to aggregate within 1 h into small cell clusters, which increase in size with selective adhesion of free cells. melanin cells were frequently observed in the aggregates. cell aggregat ... | 1980 | 7369391 |
| the multiple hemoglobins of the japanese eel, anguilla japonica. molecular basis for hemoglobin multiplicity and the subunit interactions. | 1980 | 7400154 | |
| the onset of spermatogenesis in fish. | under cultivation conditions, male japanese eels (anguilla japonica) have immature testes containing only spermatogonia together with inactive testicular somatic cells, leydig cells and sertoli cells. using a recently developed organ culture system for eel testes, we have shown that hormonal induction of spermatogenesis in eel testes involves gonadotropin stimulation of leydig cells to produce 11-ketotestosterone, a potent androgen in fish. in turn, 11-ketotestosterone activates sertoli cells to ... | 1994 | 7835154 |
| involvement of growth hormone and prolactin in the induction of vitellogenin synthesis in primary hepatocyte culture in the eel, anguilla japonica. | multihormonal effects of bovine growth hormone (gh) and ovine prolactin (prl) on vitellogenin (vg) synthesis in response to estradiol-17 beta (e2) were electrophoretically examined in primary hepatocyte culture in the eel, anguilla japonica. newly synthesized protein after hormonal treatment was identified as vg by immunoblot and immunoelectrophoresis. a single injection of e2 into hypophysectomized eels failed in the induction of vg synthesis. similarly, e2 alone was insufficient to induce vg s ... | 1994 | 8138119 |
| population structure of the japanese eel, anguilla japonica. | mitochondrial dna (mtdna) sequences that include (a) a part of the cytochrome b gene, (b) two trna genes, and (c) a part of the noncoding d-loop region of 31 anguilla japonica (japanese eel) and 1 a. marmorata collected from taiwan, japan, and mainland china were determined to evaluate the population structure of japanese eel. among 30 genotypes identified from the 31 japanese eel mtdnas sequenced, there are 58 variable sites, predominantly clustered at the d-loop region. the phylogenetic tree c ... | 1994 | 8170366 |
| spinal and parachordal neurons in the eel leptocephali, anguilla japonica revealed by labeling with a fluorescent dye. | the spinal and parachordal neurons innervating the trunk muscles and skin in the japanese eel leptocephali, anguilla japonica, were retrogradely labeled with a fluorescent dye, dii (1,1'-dioctadecyl-3,3,3',3'-tetramethylindocarbocyanine perchlorate). the spinal motoneurons innervating the trunk muscles were located in the medioventral part of the spinal cord and were divided into two populations on the basis of their soma sizes and position. the sensory neurons were labeled in the well-developed ... | 1995 | 8584211 |
| tocopherol levels in the plasma lipoproteins from japanese eel anguilla japonica. | the alpha- and gamma-tocopherol levels in the plasma of japanese eel (anguilla japonica) were 53.9 micrograms and 1.3 micrograms/ml of plasma, respectively. the alpha-tocopherol in the plasma was mainly distributed as very-low-density lipoprotein and low-density lipoprotein (ldl), while ldl and high-density lipoprotein constituted most of the gamma-tocopherol. a highly positive coefficient of correlation was observed between the alpha-tocopherol and lipoprotein contents in japanese eel plasma. | 1995 | 8611757 |
| uptake and elimination of cadmium by japanese eel, anguilla japonica, at various temperatures. | 1996 | 8645928 | |
| osmotic and volaemic regulation of atrial and ventricular natriuretic peptide secretion in conscious eels. | the effects of acute manipulation of plasma osmolality and blood volume on plasma atrial and ventricular natriuretic peptide (anp and vnp) levels were examined in conscious freshwater eels, anguilla japonica. a bolus injection of hypertonic nacl (0.85 m and 1.7 m, 2.5 ml/kg body weight) through a catheter into the ventral aorta produced increases in plasma na concentration and osmolality with parallel concentration-dependent, transient increases in plasma anp and vnp levels. plasma anp and vnp l ... | 1996 | 8691102 |
| molecular cloning and characterization of japanese eel estrogen receptor cdna. | a cdna encoding the japanese eel, anguilla japonica, estrogen receptor (er) was isolated and sequenced. this cdna contains a complete open reading frame encoding 573 amino acid residues, and the molecular weight of this protein is calculated to be 63417. the amino acid sequence of the eel er shows high homology of the dna binding (80%) and ligand binding (55%) domains with those of other species. however, the other domains show greatly reduced homology (10-20%). when the cdna was ligated to the ... | 1996 | 8793852 |
| a highly repetitive sequence isolated from genomic dna of the medaka (oryzias latipes). | a highly repetitive interspersed dna sequence (mre) was isolated from the genome of medaka, oryzias latipes, and characterized. three distinct sequences of mre were cloned and compared. the conserved sequences of mre were approximately 220 bp in length. on average, one copy of mre was present in every 153 kb, and the number of copies of mre in the genome was calculated to be approximately 9800. mre constituted approximately 0.14% of the genome. mre-related sequences were not detected in carp (cy ... | 1996 | 8817927 |
| protease activity appeared after trypsin treatment of the purified vitellogenin from eel anguilla japonica. | density gradient ultracentrifugation and anion-exchange chromatography combination were effective for the purification of the eel vitellogenin from the plasma of estradiol-treated eels. the vitellogenin was very high density glycolipoprotein (p = 1.27 g/ml) and its apolipoprotein was m(r) 196 k in both reduced and non-reduced conditions by sds-page. the major lipid component was phospholipid. the n-terminal amino-acid sequence of the vitellogenin was as follows: (ac)thr-pro-ala-leu/ala-asp-tyr. ... | 1996 | 8829806 |
| morphogenesis of the brain in larval and juvenile japanese eels, anguilla japonica. | we compared the morphology, including relative volumes (rv), of some brain regions in leptocephalus larvae (10-30 mm in total length), glass eels (elvers), young, and immature pre-adults of the japanese eel anguilla japonica. the external brain shape of the leptocephali gradually changes from a laterally compressed one to a depressed elongated one. these changes are fundamentally due to biased growth of the telencephalon and optic tectum. the dramatic brain transformation progresses until the ju ... | 1996 | 8834783 |
| whole body autoradiography and microautoradiography in eels after intra-arterial administration of 125i-labeled eel anp. | 125i-labeled eel atrial natriuretic peptide (anp) was administered into the ventral or dorsal aorta of freshwater (fw) and seawater (sw) eels, anguilla japonica, and the major target organs were explored by whole body autoradiography. localization of the anp binding in the target organs was also examined at tissue and cell levels by microautoradiography using tissue sections. whole body autoradiography revealed that the specific label was accumulated predominantly in the gill, with lesser amount ... | 1996 | 8897983 |
| changes in plasma atrial and ventricular natriuretic peptide concentrations after transfer of eels from freshwater to seawater or vice versa. | changes in plasma atrial and ventricular natriuretic peptide (anp and vnp) concentrations were examined in conscious eels, anguilla japonica, after transfer from freshwater (fw) to seawater (sw) or vice versa. these changes were compared in ventral and dorsal aortic blood since clearance receptors are present in the gills. plasma na concentration and osmolality in the ventral aortic blood rose linearly after transfer of fw eels to sw. six hours after transfer, plasma anp levels increased from 28 ... | 1996 | 8954767 |
| fish testicular 11beta-hydroxylase: cdna cloning and mrna expression during spermatogenesis. | we isolated and characterized a cdna encoding testicular 11beta-hydroxylase, cytochrome p450(11beta) from the japanese eel (anguilla japonica) testis. the cdna contains an open reading frame that encodes a protein of 511 amino acids. the predicted amino acid sequence shares 38-48% homology with those of adrenal p450(11beta) from mammals and frog. transient expression in cos 1 cells confirmed that the protein encoded by this cdna had p450(11beta) activity. northern blotting revealed a single 1.8 ... | 1996 | 8955357 |
| molecular cloning of the cdnas encoding pituitary glycoprotein hormone alpha- and gonadotropin ii beta-subunits of the japanese eel, anguilla japonica, and increase in their mrnas during ovarian development induced by injection of chum salmon pituitary homogenate. | cdnas encoding the glycoprotein hormone alpha- and gonadotropin (gth) ii beta-subunits of japanese eel (anguilla japonica) pituitary were cloned using the polymerase chain reaction. the nucleotide sequence of the glycoprotein hormone alpha-subunit cdna was 364 base pairs (bp) long, encoding 117 amino acids, and that of the gth ii beta-subunit cdna was 433 bp long, encoding 140 amino acids. the deduced amino acid sequence of each mature subunit showed high homology with those of other teleosts, i ... | 1996 | 9156520 |
| isolation of low density lipoprotein subfraction containing apolipoprotein b-like protein from japanese eel anguilla japonica plasma using dextran sulfate cellulose. | japanese eel (anguilla japonica) possessed a unique lipoprotein profile in their plasma, reflecting high utilization of lipids. low density lipoprotein (ldl) fraction isolated at the densities from 1.006 to 1.085 g/ml comprised the heterogeneous components with molecular weight (mr) 1200 k, 470 k, and 250 k. ldl subfraction with mr 1200 k was completely adsorbed to dextran sulfate cellulose (dsc) column which had been developed for ldl apheresis treatment of the patients with familial hyperchole ... | 1997 | 9159883 |
| identification of anguilla japonica and a. marmorata elvers by allozyme electrophoresis | in taiwanese waters, the morphologically similar elvers of anguilla japonica and a. marmorata can be distinguished easily at the following loci examined: ck-d*, ldh-b*, smdh-a* and smdh-b*. among these, ck-d* and ldh-b* have fixed allelic differences which can be used as a synoptic key for easy discrimination of the elvers of these two species. | 1997 | 9236101 |
| intestinal na+ and cl- levels control drinking behavior in the seawater-adapted eel anguilla japonica | to analyze drinking mechanisms in seawater teleosts, seawater-adapted eels were used as a model system. when the intestine of the eel was perfused with iso-osmotic mannitol, the eels drank sea water. however, when the perfusion medium was switched to iso-osmotic nacl, seawater drinking was depressed. this depression was observed even after blocking nacl absorption across the intestine by replacement of the perfusate with choline chloride or by treatment with furosemide, an inhibitor of nacl and ... | 1996 | 9318466 |
| impaired spermatogenesis in the japanese eel, anguilla japonica: possibility of the existence of factors that regulate entry of germ cells into meiosis. | in the cultivated male japanese eel, spermatogonia are the only germ cells present in the testis. weekly injections of human chorionic gonadotropin (hcg) can induce complete spermatogenesis from proliferation of spermatogonia to spermiogenesis. in some cases, however, hcg injection fails to induce complete spermatogenesis. testicular morphological observations revealed that hcg-injected eels could be classified into three types based on their testicular conditions. type 1 eels had a well-develop ... | 1997 | 9493828 |
| the small subunit ribosomal rna gene sequence of pleistophora anguillarum and the use of pcr primers for diagnostic detection of the parasite. | using the polymerase chain reaction (pcr) and two primers for conserved regions of the small subunit ribosomal rna (ssu-rrna) of microsporidia, a dna segment about 1,195 base pairs long was amplified from a dna template prepared from purified spores of the microsporidian species pleistophora anguillarum. these spores had been isolated from adult eels (anguilla japonica) with "beko disease." a comparison of sequence data from other microsporidian species showed p. anguillarum ssu-rrna to be most ... | 1998 | 9783458 |
| a novel stage-specific antigen is expressed only in early stages of spermatogonia in japanese eel, anguilla japonica testis. | we produced an antibody that recognized only early stages of spermatogonia in japanese eel testis. this antibody (anti-spermatogonia-specific antigen-1, anti-sgsa-1) recognized a band of about 38 kda in western blot analysis of extracts from eel testis. this antigen was observed by immunohistochemistry only in type-a and early type-b spermatogonia and could not be seen in the late type-b spermatogonia, which appeared after the initiation of spermatogenesis by a single injection of human chorioni ... | 1998 | 9820193 |
| cloning, properties and tissue distribution of natriuretic peptide receptor-a of euryhaline eel, anguilla japonica. | during the course of cloning and characterization of natriuretic peptide receptor-a (npr-a) from the euryhaline fish eel, anguilla japonica, we identified a splice variant with unique structural properties that affect ligand-inducible intrinsic guanylate cyclase activity. the variant, generated from a splice between a cryptic donor site and the normal acceptor site, lacked nine amino acid residues (vftktgyyk) in the kinase-like regulatory domain. this deletion of a very short segment resulted in ... | 1999 | 9914494 |
| isolation of viable cell types from the gill epithelium of japanese eel anguilla japonica. | high-purity viable cells with low mitochondria (pavement cells) and mitochondria-rich content (chloride cells) were successfully isolated from the gill epithelium of japanese eels, using three-step percoll gradient low-speed centrifugation. cytochemistry (silver staining for chloride, rhodamine-123, and mitotracker for mitochondria and actin/spectrin immunofluorescence) and scanning electron microscope images were used to identify the cell types in the gill epithelium of the eel. pavement cells ... | 1999 | 9950913 |