Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| molecular evolution of glycogen phosphorylase and aminotransferases of vertebrate muscle tissue. | comparative biochemical studies on phosphorylase b, aspartate aminotransferase and alanine aminotransferase in muscles of various vertebrates (the lamprey lampetra fluviatilis, dogfish squalus acanthias, rays dasyatis pastinaca and raja clavata, teleosts scorpaena porcus, spicara smaris, esox lucius, tinca tinca, abramis brama, lucioperca lucioperca, cyprinus carpio, salmo ischchan, frog rana temporaria, tortoise testudo horsfieldi) revealed some peculiarties of their molecular evolution. it was ... | 1977 | 17251 |
| type c virus in lymphosarcoma in northern pike (esox lucius). | 1999 | 59315 | |
| presence of dna polymerase in lymphosarcoma in northern pike (esox lucius). | northern poke lymphosarcoma dna polymerase was partially purified from particulate fractions banding at 1.15 to 1.16 g/ml from homogenates prepared from frozen necropsies of tumor-bearing pike. the enzyme behaves as a typical reverse transcriptase, in that it prefers ribotemplates to deoxytemplates. the isoelectric point (pl 5.5) is similar to that of avian myeloblastosis virus polymerase. the pike enzyme elutes from a phosphocellulose column at 0.22 m potassium phosphate, the same as avian myel ... | 1977 | 69492 |
| egtved virus: characteristics of a virus strain isolated from pike fry (esox lucius l.). | 1979 | 118428 | |
| new species in genus azygia looss, 1899 (trematoda, azygiidae) | a new species azygia inopinata is described from esox lucius the species was found in two lakes of southern karelia. marita is characterized by the equality of suckers and globular pharynx; the average size of eggs is 0.061 x 0.033 mm. the intermediate host(in the experiment) is galba plaustris. the larva is cercaria mirabilis braun. | 1975 | 130603 |
| [morphological characteristics and certain biological problems of the representatives of the genus apiosoma (infusoria, peritricha) from the young of predatory fishes]. | 13 species of apiosoma were recorded from the young of esox lucius, lota lota and perca fluviatilis. 7 species were reported from lota lota, 9 species-from esox lucius and 6 species--from perca fluviatilis. apiosomes were found mainly on the body surface and fins of fishes and move seldom on their gills. under changing conditions the transition of parasites from one organ to another is possible. great morphological variability of apiosoma is reflected in variability of shape and size of the body ... | 1976 | 138836 |
| [cytochemical characteristics of the labrocyte-like cells in the capsule of the plerocercoids of triaenophorus nodulosus (pallas, 1781) and diphyllobothrium dendriticum (nitzsch, 1824) cestodes]. | out of six fish species examined (esox lucius, paracottus kessleri, perca fluviatilis, leuciscus leuciscus baicalensis, coregonus autumnalis migratorius, thymallus arcticus baicalensis) labrocyte-like cells were detected in esox lucius, leuciscus leuciscus baicalensis, coregonus autumnalis migratotius. the cells contain large metachromatic granules. histochemical methods revealed in them sulfated and carboxylic acid mucopolysacharides. the amount of labrocyte-like cells in the capsules around pl ... | 1977 | 143258 |
| studies of the etiology and epizootiology of lymphosarcoma in northern pike (esox lucius) and muskellung (esox masquinongy). | 1975 | 183679 | |
| cylindroid lamella-particle complexes and nucleoid intracytoplasmic bodies in lymphoma cells of northern pike (esox lucius). | 1982 | 185652 | |
| cylindroid lamella-particle complexes in lymphoma cells by northern pike (esox lucius). | cells of the malignant lymphoma of northern pike of canada contained cylindrical structures with central cores of cytoplasmic elements and walls composed of lamellae in a spiral arrangement, separated by ribosome-like particles or by membranes. these cylindroids were similar, if not identical, to structures in the cells of certain human lymphomas and leukemias. in cross and longitudinal sections, the lamellae showed a pattern of light and dark bands resulting in an approximately 95 a-period that ... | 1976 | 187772 |
| pikes (esox lucius l.) shown to be affected by low ph values during first weeks after hatching. | 1975 | 235424 | |
| tissue alkaline phosphatase activity in selected freshwater teleosts. | 1. kinetic studies of tissue alkaline phosphatase activity were carried out on eight species of teleost fishes taken from the mississippi river. 2. liver alkaline phosphatase activity expressed in mumoles of p-nitrophenol released per minute per gram of protein were as follows: micropterus salmoides, 20.31; stizostedion vitreum, 19.22; pomoxis nigromaculatus, 18.76; lepisosteus platostomus, 16.26; esox lucius, 16.14; hiodon tergisus, 13.83; ictalurus punctatus, 10.87; aplodinotus grunniens, 7.94 ... | 1978 | 318337 |
| polymorphic tetrameric superoxide dismutase in the pike esox lucius l. (pisces; esocidae). | 1. heart muscle extracts of northern pike from lake malaren in sweden exhibited two electophoretic types of superoxide dismutase, one of which was identified as the cytoplasmic enzyme (s-sod) and the other as the mitochondrial form (m-sod). 2. individual analysis of 51 pike indicated that s-sod was invariant while m-sod displayed a pattern of variation which was explicable by a single-locus polymorphism. 3. the observed m-sod phenotype patterns suggested that the enzyme is a tetramer. this inter ... | 1979 | 318459 |
| ddt in northern pike (esox lucius) from the richelieu river, québec, canada, 1974-75. | concentrations of ddt, tde, dde, and sigma ddt were determined in homogenized whole fish samples of 129 northern pike (esox lucius). these fish were netted between june 1974 and june 1975 in the first 10 km of the richelieu river flowing in canadian territory. two years after the banning of ddt, sigma ddt levels ranged from 0.2 ppm fresh body weight in two-year-old specimens to 1.5 ppm in a six-year-old pike. residues increased greatly with age, and significant seasonal variations in the sigma d ... | 1979 | 537862 |
| [chemical danger signal in the "predator-prey" system in fishes]. | studies have been made on peculiarities of defensive reaction in phoxinus phoxinus to external metabolites produced by the pike esox lucius and excreted into the basin. it was shown that the skin and mucose of the pike contain low molecular weight substances (m. w. about 1300) which being introduced into the basin serve as a chemical signal of danger to phoxinus phoxinus. | 2006 | 676587 |
| redescription of the nematode philometra obturans (prenant, 1886) with a key to the philometrid nematodes parasitic in european freshwater fishes. | a redescription of the nematode ph. obturans (prenant, 1886), based on specimens from pike (esox lucius l.) from the r. elbe basin in czechoslovakia, is presented. in addition to gravid, subgravid and mature females from the blood system also the male and mature female, found for the first time in the host's eye, are described. the paper is supplemented by a key for the identification of the philometrid nematodes parasitizing freshwater fishes of europe. | 1978 | 689558 |
| isolation and characterization of infectious pancreatic necrosis virus from pike (esox lucius). | a nonenveloped icosahedral virus measuring 60 (+/-5)nm in diameter has been isolated from pike fry (esox lucius). the isolate is stable to heat, lipid solvent and acid. iododeoxyuridine has no effect on its replication. serologically, the virus related to the major european strains of infectious pancreatic necrosis virus (ipn) sp and ab. the isolate is neutralized by normal trout serum and is not pathogenic for trout fry or for young pike. a line of chse-214 cells persistently infected with the ... | 1978 | 697575 |
| [cytochemical studies on blood cells of 3 teleost species (carp--cyprinus carpio l., rainbow trout--salmo gairdneri richardson and pike--esox lucius l.)]. | 1978 | 697717 | |
| "particle-filament complex" in tumor cells of northern pike, esox lucius l. | examination of the cells of lymphoreticular neoplasms of the northern pike (esox lucius l.) by electron microscopy has demonstrated the presence of unusual cytoplasmic crystalloid inclusions in cells of a spontaneous trunk tumor. the ultra-structural analysis revealed that the inclusions are composed of parallel arrays of filaments associated with rows of particles. this is designated as "particle-filament complex". the filaments of the complex measured 90--120a in diameter and 0.6--2.8 micron i ... | 1978 | 725784 |
| [effect of individual electrical stimuli on the activity of medulla oblongata neurons of the pike esox lucius]. | 2008 | 735603 | |
| a model for the turnover of 137cs and potassium in pike (esox lucius). | 1978 | 748259 | |
| in vitro biosynthesis of 11beta-hydroxy- and 11-oxotestosterone by testes of the pike (esox lucius) and the perch (perca fluviatilis). | 1978 | 750289 | |
| studies of the etiology and epizootiology of lymphosarcoma in esox (esox lucius l. and esoxmasquinongy). | 1976 | 790463 | |
| a new nematode parasite, esocinema bohemicum gen. et sp. nov.(skrjabillanidae) of the european pike. | a new nematode genus and species, esocinema bohemicum gen. et sp. nov., is described from the serosa of the air bladder of the pike (esox lucius l.) from czechoslovakia (north bohemia). it is characterized largely by the tubiform buccal capsule, division of the oesophagus into the muscular and glandular sections, pointed tip of the female tail, and character of caudal papillae in the male. agrachanus tikhomirova, 1971 is considered a synonym of the genus skrjabillanus shigin et shigina, 1958. | 1977 | 852776 |
| ultrastructural identification of the sertoli cell in the testis of the northern pike, esox lucius. | identification of the intralobular sertoli cell in the testis of esox lucius is based upon residual body phagocytosis. formerly, this lipid-containing cell type was refereed to as the "lobule boundary cell" and erroneously believed to be homologous to the interstitial leydig cell. | 1977 | 879048 |
| general morphology and axonal ultrastructure of the olfactory nerve of the pike, esox lucius. | the olfactory nerve of the european pike (esox lucius) contains 5.1 x 10(6) axons with an average diameter of 0.20+/-0,04 micron and a length of 5.5 cm in 1 meter long pike. each axon contains an average of 4 microtubules as well as neurofilaments, smooth endoplasmic reticulum and about 500 mitochondria per centimeter. the number of neurofilaments ranges from zero in 15% of the cross sections to over 10 in 6%. neurofilaments generally occur in clusters located opposite to microtubule regions. sm ... | 1977 | 884716 |
| chromosomal characteristics of malignant lymphoma in northern pike (esox lucius) from the united states. | chromosome analyses were performed on tumor cells and normal hematopoietic cells of northern pike bearing malignant lymphomas. the normal pike karyotype contains 50 acrocentric chromosomes, among which the sex chromosomes are not identifiable by available techniques. metaphases from 19 primary lymphomas showed a consistent pattern of chromosome anomalies consisting of 1 submetacentric marker, 1 minute marker, and 3 to 5 pairs of smaller-than-normal chromosomes, set within a mode of 50 and a rang ... | 1976 | 953983 |
| the in vivo metabolism of 14c-glucose and 14c-glycine in insulin-treated northern pike (esox lucius l.). | 1976 | 955377 | |
| epizootiological and experimental studies of skin tumours in northern pike (esox lucius l.) in the baltic sea. | 1976 | 981688 | |
| the primary structure of the parvalbumin ii of pike (esox lucius). | the amino acid sequence of the parvalbumin ii of the pike is reported. the protein has a molecular weight of 11 435. it consists of a single polypeptide chain of 107 amino acid residues with an acetyl group blocking the n-terminus and an alanine residue at the c-terminus. the molecule has been enzymically cleaved by trypsin, thermolysin and by the protease of the staphylococcus aureus strain v8. chemical cleavages make use of the cnbr reaction and of the sulfocyanoethylation method. the comparis ... | 1976 | 1009932 |
| tumors in fish caught in polluted waters: possible explanations. | the largest excess in tumor incidence due to pollution (616%) was observed in the fish species: ictalurus nebulosis (the brown bullhead). extensive analysis of waters on the fox river in illinois disclosed a heavy chemical and physical organic and inorganic materials far exceeding state and federal minimal safety standards. additional tests showed the presence of numerous human viral agents in the fox river. certain chemicals in the water appear to be potential carcinogens for fish. two types of ... | 1975 | 1174315 |
| [2 new species of parasites of fish, myxobilatus schulmani sp. n. and apiosoma longiciliaris sp. n. of the water reservoirs of the kol'sk peninsula]. | two new species of parasitic protozoa are described, one of myxosporidia and the other of peritricha sessilia. myxobilatus schulmani sp. n. from pungitius pungitius is near to m. paragasterostei but differs from it by the rhombus form of the spore, by less dimension of polar capsules. the spore of m. shulmani is longer and less broader than that of m. paragasterostei. apiosoma longiciliaris sp. n. was found on the gills on esox lucius and phoxinus phoxinus. it is near to a. dallii but its micron ... | 2009 | 1187178 |
| [supplement to the contribution of k. h. unger: spinal malformations in pikes (esox lucius l.)]. | 1975 | 1198605 | |
| hormonal and metabolite effects on plasma free fatty acids in the northern pike, esox lucius l. | 1975 | 1205116 | |
| leukocyte characteristics and phytohemagglutinin-stimulated response in healthy and lymphoma-bearing pike esox lucius l. | 1975 | 1241889 | |
| enhancement of lymphosarcoma transmission in esox lucius and its epidemiologic relationship to pollution. | 1975 | 1243980 | |
| [anatomo-histologic findings clarifying the phylogenetic relationships between salmonoid fish (salmonoidei)]. | the comparative anatomo-histological analysis of the medial gut of osmeridae and plecoglossidae after iwai (1962) has revealed a great similarity in the structure of this entosomatic organ suggesting their phylogenetically close nature. on the contrary, the fine structure of the medial gut in these two families substantially differs from the structure of this organ in salmonoidee. pronounced distinctions were found between the structure of the medial gut of smelts and that of the pike (esox luci ... | 1976 | 1275716 |
| molecular cloning and sequence analysis of the cdna for northern pike (esox lucius) growth hormone. | the complete nucleotide sequence of the northern pike (esox lucius) cdna for pregrowth hormones was determined from clones derived from a pituitary gland cdna library. seventeen cdna clones were isolated from a single mrna species. a cdna of 1,227 nucleotides was sequenced and found to encode a polypeptide of 209 amino acid residues, which included a putative signal sequence of 22 amino acid residues. sequence comparison of the northern pike growth hormone gene to other known growth hormone gene ... | 1992 | 1308808 |
| micronuclei induction in pike (esox lucius) in swedish lakes contaminated with radiocaesium. | micronuclei frequency in fish from swedish lakes with high concentrations of radiocaesium was investigated. the frequency of micronucleus induction in fish varied in different lakes but was not correlated with caesium concentrations. | 1992 | 1511626 |
| radiocesium in muscle tissue of reindeer and pike from northern sweden before and after the chernobyl accident. a retrospective study on tissue samples from the swedish environmental specimen bank. | after the chernobyl accident in april 1986, considerable deposition of radionuclides occurred regionally in eastern, central and northwestern sweden. locally, the fallout of radiocesium exceeded the remainder from atmospheric nuclear weapons tests by several magnitudes. since the end of the 1960s samples of organs from various plant and animal species, annually collected at different localities, have been preserved in the swedish environmental specimen bank (esb). in this work samples from the e ... | 1992 | 1604304 |
| impaired cortisol stress response in fish from environments polluted by pahs, pcbs, and mercury. | the cortisol stress response to capture was investigated in two species of fish (perca flavescens and esox lucius) from sites polluted by high levels of polycyclic aromatic hydrocarbons (pahs), polychlorinated biphenyls (pcbs), and mercury, and from reference sites in the st. lawrence river system. fish from the reference sites exhibited the normal elevation of serum cortisol in response to the acute stress of capture and had large pituitary corticotropes. in contrast, fish from the most pollute ... | 1992 | 1616312 |
| axonal transport of cadmium in the olfactory nerve of the pike. | 109cd2+ was applied in the olfactory chambers of pikes (esox lucius) and the dynamics of the axoplasmic flow of the metal was determined in the olfactory nerves by gamma spectrometry and autoradiography. the results showed that the 109cd2+ is transported at a constant rate along the olfactory nerves. the profile of the 109cd2+ in the nerves showed a wave front of transported metal followed by a saddle region. when the nasal chambers were washed 2 hr after application of the 109cd2+ well-defined ... | 1991 | 1720248 |
| vector specificity of trypanosoma catostomi and its infectivity to freshwater fishes. | trypanosoma catostomi was found in 36.2% of 558 white suckers (catostomus commersoni) from ontario, canada. the abundance of actinobdella inequiannulata was 35% (68 leeches/197 suckers examined for leeches). the susceptibility of 3 species of leeches (hemiclepsis marginata, desserobdella phalera, and a. inequiannulata) and 7 species of fishes (c. commersoni, amia calva, anguilla rostrata, ictalurus nebulosus, oncorhynchus mykiss, perca flavescens, and esox lucius) to infection with t. catostomi ... | 1992 | 1738075 |
| morphological patterns in the developing vertebrate retina. | changes in the morphology of the early optic cup were observed in embryos of two distantly-related vertebrate species, a teleost fish, northern pike (esox lucius), and chicken (gallus gallus). a similar morphological pattern was noted to appear in both species shortly after the involution of the optic vesicle and the formation of the inner retinal layer. at a gross level, three notches were observed in the retinal margin at approximately nasal, dorsal, and temporal positions, while in histologic ... | 1991 | 1741476 |
| the hepatic glutathione content and glutathione s-transferase activity in the pike (esox lucius l.) and rat. | 1. the content of glutathione and glutathione disulfide and the activity of the glutathione s-transferase were determined in the liver of pike and rat. 2. it was found that the liver of pike contains far less glutathione than the liver of rats, while the glutathione disulfide content was similar in both species. 3. the activity of the hepatic glutathione s-transferase was more effective in pike than in rats. | 1991 | 1764906 |
| [the causes of the formation of an intensive focus of triaenophoriasis in the upper tuloma river reservoir]. | observations on the triaenophorus crassus invasion in coregonus lavaretus and esox lucius were carried out in the period of 1984 to 1989 in the upper tuloma river [correction of verkhnetulomsk] water reservoir and pechozero water body (the pecha river) which form a common basin. significant differences were noted in the infection rate of fishes with this parasite in the above water bodies. in pechozero, where there are preserved natural conditions and therefore an ecological equilibrium in the h ... | 1991 | 1839932 |
| monoamine oxidase activity in embryos of pike (esox lucius). | 1. mitochondrial mao specific activity was measured in eggs and early embryos of the teleostean fish esox lucius using tryptamine, 5-hydroxytryptamine (5-ht) and phenylethylamine (pea) as substrates. 2. tryptamine is the most readily deaminated substrate in mitochondria isolated from unfertilized eggs and embryos at the stages of cleavage, blastula and gastrula. 3. monoamine oxidase activity gradually decreases during development and at the gastrula stage it is respectively 80% (tryptamine), 70% ... | 1990 | 1980887 |
| purification and subcellular localization of zn-dependent acid p-nitrophenylphosphatase in frog liver and comparison with other vertebrates. | zn2(+)-dependent acid p-nitrophenylphosphatase (zn-acpase) from liver of rana esculenta was purified to homogeneity. the purified enzyme moves as a single electrophoretic band at ph 8.3 in 7.5% acrylamide and was coincident with the enzyme activity. the enzyme has a molecular weight of 102,000 +/- 5,000d and is a dimer with two apparently similar polypeptide chains of 48,000 +/- 3,000d as determined by sodium dodecylsulfate gel electrophoresis. zn-acpase from frog liver requires zn2+ ions for ca ... | 1990 | 2161444 |
| immunological and ultrastructural characterization of true histiocytic lymphoma in the northern pike, esox lucius l. | an epidemic of a malignant neoplasm occurs in northern pike, esox lucius l., from the aland islands of finland. the neoplasm is morphologically similar to other pike hemic tumors reported in other areas of the world. pike normal tissues showed evolutionary conservation with the mammalian intermediate filament proteins cytokeratin, desmin, vimentin, neurofilament protein, and glial fibrillary acidic protein; tumor cells are positive for vimentin, suggesting that the neoplasm is of mesenchymal ori ... | 1990 | 2201440 |
| growth, morphology and division of flagellates of the genus trypanoplasma (protozoa, kinetoplastida) in vitro. | nine strains of trypanoplasms were grown in axenic culture. cultures of trypanoplasma borreli laveran and mesnil, 1901 from fish hosts blicca bjoerkna, cyprinus carpio, scardinius erythrophthalmus and tinca tinca and of t. guerneyorum minchin, 1909 from esox lucius and trypanoplasma spp. from the leech piscicola geometra were maintained in biphasic blood-agar medium snb-9 supplemented with vitamins and antibiotics. in culture, the flagellates transformed into smaller, elongated stages with a lit ... | 1990 | 2217113 |
| a toxicological examination of whitefish (coregonus clupeaformis) and northern pike (esox lucius) exposed to uranium mine tailings. | operation of the gunnar uranium mine, in nothern saskatchewan, canada, from 1955 to 1964, resulted in the deposition of radioactive tailings in langley bay, a small bay connected to lake athabasca. previous publications have described the contamination of the sediments, water, macrophytes and fish of this area. the present study compares the parasite infestations, blood hematocrit, histopathology and condition factor (k) of the langley bay whitefish and northern pike populations with these facto ... | 2013 | 2386411 |
| oncogenes in hematopoietic and hepatic fish neoplasms. | neoplastic transformation of cells has often been associated with changes in cellular oncogenes. while much information has been collected in mammalian systems, relatively little is known about the molecular basis of tumor progression in lower vertebrates. for our studies, tumors were collected from feral northern pike (esox lucius) from ostego lake, mi, where the local population exhibited a 15% incidence of large external lymphomas. in laboratory studies, tumors were induced under controlled c ... | 1990 | 2386967 |
| intermediate filaments in normal tissues and lymphomas of northern pike, esox lucius l., from the aland islands of finland. | a battery of polyclonal and monoclonal antibodies directed against cytokeratins, desmin, vimentin, glial fibrillary acidic protein and neurofilament proteins of mammalian species was used to demonstrate intermediate filament (if) expression in normal and lymphoma tissues of northern pike by indirect immunofluorescence microscopy. frozen sections of pike intestine, skin, skeletal muscle, heart, liver, testis, head-, mid-, and posterior kidney and brain demonstrated if in a manner which strengthen ... | 1987 | 2440919 |
| triaenophorus nodulosus and t. crassus in fish from northern finland. | 10,288 fish specimens of 34 species from three water bodies in northern finland were studied mainly in 1978-1982 triaenophorus nodulosus and t. crassus parasites. six of the 31 species from the bothnian bay were found to harbour t. nodulosus plerocercoids, four of the 11 from the cold, oligotrophic lake yli-kitka in northeastern finland and only one of the 6 from the small, eutrophic lake kuivasjärvi. the ruff (gymnocephalus cernuus) was most essential intermediate host in the lakes, as supporte ... | 1989 | 2488051 |
| histochemical localization of alpha-amylase in the pancreas of pike (esox lucius) by indirect immunofluorescence. | alpha-amylase is an enzyme, rarely detected histochemically. only a few examples are known in mammals. a method is described for the histochemical detection of an alpha-amylase in the pancreas of pike using a rabbit antiserum against pike amylase and fitc-labelled anti-rabbit immunoglobulin. | 1989 | 2516685 |
| the selenium method for treatment of lakes for elevated levels of mercury in fish. | selenium in the form of sodium selenite (na2seo3) incorporated in a rubber matrix was introduced into a swedish lake which is black-listed for fishing because of high mercury levels in fish tissues. the lake is not acidified. the level of selenium in the lake was raised from 0.4 to approximately 3-5 micrograms se l-1, and sustained at this level for a period of greater than 3 years. the mercury content of pike (esox lucius) was found to have fallen markedly after the lake had been treated for on ... | 1989 | 2558416 |
| helminth position within the intestine of naturally infected pike (esox lucius) relative to host stomach contents. | the positions of 3 cestode species, triaenophorus crassus forel, triaenophorus nodulosus (pallas), and proteocephalus pinguis larue, and a nematode, raphidascaris acus (bloch), within the intestine of naturally infected pike (esox lucius l.) were evaluated with respect to the presence or absence and state of digestion of host stomach contents. the positions of scolices and strobilae of the cestodes did not vary with respect to host stomach contents. by contrast, r. acus was anterior (near the st ... | 1989 | 2614600 |
| [tracheliastes polycolpus nordm. 1832 (lernaeopodidae) in the narew river]. | in the course of ichthyological inventory investigations in the main water-course of the narew river the occurrence of tracheliastes polycolpus nordm. was recorded on ide leuciscus idus (l.) and pike esox lucius l. a comparison of the occurrence of this parasite in other rivers of poland is presented. | 1989 | 2728457 |
| an acoustic telemetry system for monitoring the heart rate of pike, esox lucius l., and other fish in their natural environment. | 1989 | 2732667 | |
| 5'-nucleotidase activity in the pineal organ of the pike. an electron-microscopic study. | to date, it is still unknown whether the metabolism of purine nucleotides and nucleosides plays an important role in the pineal organ of lower vertebrates. we have therefore investigated the sites of 5'-nucleotidase activity in the pineal organ of the pike (esox lucius l.). various ultracytochemical procedures were used. an intense ecto-5'-nucleotidase activity was characteristic of the entire plasma membrane of the phototransducers (cone-like and modified photoreceptor elements) and the interst ... | 1988 | 2830978 |
| noradrenaline, dopamine, 5-hydroxytryptamine and tryptophan concentrations in the brains of four cohabiting species of fish. | 1. the concentrations of the neurotransmitters noradrenaline, dopamine and 5-hydroxy-tryptamine and the amino acid tryptophan were determined in the telencephalon, optic lobes and rest of the brains of four species of fish collected from a stream in central saskatchewan. 2. the species investigated were white sucker (catostomus commersoni), longnose sucker (catostomus catostomus), longnosed dace (rhinichthys cataractae) and northern pike (esox lucius). 3. significant differences were found in th ... | 1988 | 2898995 |
| preparation and characterization of subcellular fractions from the head kidney of the northern pike (esox lucius), with particular emphasis on xenobiotic-metabolizing enzymes. | the present study was designed to prepare and characterize subcellular fractions from the head kidney of the northern pike (esox lucius), with special emphasis on the preparation of a microsomal fraction suitable for studying xenobiotic metabolism. the purity of the different fractions obtained by differential centrifugation as well as the recovery of different cell components was determined using both enzyme markers and morphological criteria. finally, the subcellular distributions of several d ... | 1985 | 2983737 |
| immunohistochemical localization of cyclic amp and ultrastructural demonstration of adenylate cyclase activity in the testis of esox lucius at time of spermiation. | in the testis of esox lucius at the time of spermiation, activity of cyclic adenosine 3',5'-monophosphate (camp) was immunocytochemically localized at the level of the sertoli cells. in these cells adenylate cyclase activity was also ultracytochemically demonstrated by using adenylyl imidodiphosphate as a substrate. reaction products of adenylate cyclase were primarily detectable on the basal and adluminal plasma membranes and on the surface of protrusions of the cell body into the lumen. | 1985 | 2983897 |
| [malignant lymphomas of various histological types in pike from the eastern portion of the baltic sea]. | malignant lymphomas have been found in pikes (esox lucius l.) caught in the eastern part of the baltic sea. the frequency of the disease has increased in recent years. three different histological types of malignant lymphoma are described in 32 pikes: poorly differentiated diffuse lymphocytic lymphoma, mixed (histiocytoid-lymphocytic) diffuse lymphoma and undifferentiated (anisomorphic) diffuse lymphoma. | 2011 | 3053150 |
| crystal structure determination and refinement of pike 4.10 parvalbumin (minor component from esox lucius). | the crystal and molecular structure of the minor component of pike parvalbumins has been determined at 1.93 a resolution by molecular replacement (1 a = 0.1 nm). the crystals are orthorhombic, space group p2(1)2(1)2 with a = 59.62 a, b = 59.83 a and c = 26.35 a. a location of the secondary cation binding site is proposed for this parvalbumin of the beta phylogenetic series. | 1988 | 3172221 |
| volatile compounds in flavor-tainted fish from the upper wisconsin river. | fillets from walleye pike (stizostedion vitreum) and northern pike (esox lucius) captured from the upper wisconsin river were analyzed for volatile components using simultaneous steam distillation-extraction and gc-ms techniques. based on comparative odor assessments of eluting gc fractions and gc-ms analysis between control and tainted fish, trace amounts (ppb) of alkylphenols (2-isopropyl-, 4-isopropyl-, 2,4-diisopropyl-, 2,5-diisopropyl-, 2,6-diisopropyl-, 3,5-diisopropyl-, 5-methyl-2-isoprop ... | 1988 | 3209816 |
| two-dimensional 1h nuclear magnetic resonance study of pike pi 5.0 parvalbumin (esox lucius). sequential resonance assignments and folding of the polypeptide chain. | the structure of alpha pike 5.0 parvalbumin under its ca-loaded form (or paca2) is studied in solution by two-dimensional 1h nuclear magnetic resonance (n.m.r.) at 360 mhz using a conventional strategy of sequential assignments, which involved correlated spectroscopy, relayed coherence transfer spectroscopy and nuclear overhauser enhancement spectroscopy. in order to overcome the problem of spectral overlapping due to the presence of 108 residues in the protein, experiments were performed at dif ... | 1988 | 3221403 |
| [thyroid homeostasis in animals with iodine deficiency]. | the content of total iodine, its hormonal and nonhormonal fractions as well the level of protein-bound iodine in blood and basic tissue targets in representatives of 4 classes of animals: esox lucius l., rana esculenta, streptopelia decaocto priv., lepus europaeus pall. inhabiting the mountain regions with iodine deficiency in environment and in the lowlands of transcarpathia with higher iodine provision have been investigated. a considerable decrease of general and hormone iodine level in the a ... | 1988 | 3265636 |
| cutaneous tumor of northern pike, esox lucius l. ii. expression of surface and cytoplasmic immunoglobulins and alpha-naphthyl acetate esterase by mononuclear cells from lymphoid tissues and tumor. | rabbit anti-pike igm antibodies showed that up to 95% of mononuclear (mn) cells isolated on ficoll-isopaque gradients from peripheral blood, spleen, and head kidney of northern pikes carrying cutaneous tumors were surface (sig) and cytoplasmic (cig) immunoglobulin positive by indirect immunofluorescence. on the contrary, rabbit anti-winter flounder igm antibodies gave totally negative results. monoclonal anti-carp igm antibodies stained approximately 40-56% of peripheral blood, splenic, and head ... | 1988 | 3350193 |
| interactions of calcium binding proteins, parvalbumin and alpha-lactalbumin, with dipalmitoylphosphatidylcholine vesicles. | interactions of ca2+ binding proteins, pike (esox lucius) parvalbumins pi 4.2 and 5.0, and bovine and human alpha-lactalbumins, with dipalmitoylphosphatidylcholine vesicles were studied by means of scanning microcalorimetry and intrinsic tyrosine and tryptophan fluorescence methods. the interactions of pike parvalbumins are modulated by ca2+ and mg2+ binding to the protein and induce some changes in the physical properties of both the proteins and liposomes. liposomes increased thermal stability ... | 1988 | 3396853 |
| cutaneous tumor of northern pike, esox lucius l. i. in vitro mitogenic responses of mononuclear cells from lymphoid tissues and tumor. | to evaluate functional characteristics of lymphocytes from the northern pike, esox lucius l., mononuclear cells were isolated by ficoll-isopaque gradients from lymphoid organs and cutaneous tumors of normal and tumor bearing pikes. the cells were tested in a lymphocyte proliferation assay in medium supplemented with fetal calf serum or autologous plasma using three concentrations of pha, con a, tuberculin ppd, and lps. lymphocytes of northern pike could be triggered to dna synthesis in vitro. ho ... | 1987 | 3440501 |
| a comparative study on glyoxalase ii from vertebrata. | s-2-hydroxyacylglutathione hydrolase (glyoxalase ii) from the liver of animals belonging to the various vertebrate classes (oryctolagus cuniculus, gallus gallus, python molurus, rana esculenta, esox lucius) have been purified from 100,000 g supernatants of liver homogenates, using acetone fractionation and affinity chromatography. subsequent comparative studies were concerned with some molecular and kinetic properties. isoelectric focusing gave evidence for a single form of liver glyoxalase ii i ... | 1987 | 3495432 |
| rhythmic melatonin biosynthesis in a photoreceptive pineal organ: a study in the pike. | activities of pineal n-acetyltransferase (nat) and hydroxyindole-o-methyltransferase, involved in the biosynthesis of melatonin from serotonin, were assessed over 24 h in the pineal organ of pikes (esox lucius, l.; teleosts) entrained to natural (winter) environmental conditions. only nat activity exhibited daily changes, rising at the onset of darkness and resuming low values shortly before the end of the scotophase. the rhythm was damped under constant darkness, lower and higher values being s ... | 1987 | 3614551 |
| impact of pulp and paper mill effluent on egg hatchability of pike (esox lucius l.). | 2013 | 3708178 | |
| raphidascaris acus (bloch, 1779) in northern pike, esox lucius l., walleye, stizostedion vitreum vitreum (mitchill), and yellow perch, perca flavescens (mitchill), from central canada. | 1986 | 3735597 | |
| immunological classification of a pike lymphoma. | monoclonal and polyclonal antibodies against mammalian intermediate filament (if) proteins were used to demonstrate if expression in tissues and lymphoma tumors of northern pikes, esox lucius l., from the aland islands of finland by indirect immunofluorescence microscopy. frozen sections of pike tissues demonstrated ifs in a manner confirming their evolutionary conservation and subclass specificity. tumor cells showed morphological resemblance to head kidney cells and were positive for vimentin ... | 1986 | 3765362 |
| hemoglobin heterogeneity in the pike, esox lucius, and isolation of a homogeneous component. | the hemolysate of the pike, esox lucius, contains multiple molecular forms of hemoglobin molecules. analytical gel electrofocusing, disc-gel electrophoresis and gel filtration chromatography indicate that the hemoglobin heterogeneity may be due to different charge isomers with mol. wt values similar to that of the human. ion exchange chromatography on cm-cellulose permits to separate a hemoglobin component in a pure form. globin chains analysis of this fraction and their isolation was also repor ... | 1986 | 3791960 |
| partial characterization of transferrins of catfish (silurus glanis l.) and pike (esox lucius l.). | basic composition and properties of isolated transferrins of silurus glanis and esox lucius have been compared. in transferrin of s. glanis carbohydrate is absent, but it is present in transferrin of e. lucius (2.5%). the n-terminal amino acid is alanine in both species. mol. wts are 68,400 (s. glanis) and 86,800 (e. lucius). transferrins of the two species are heterogeneous, but genetic polymorphism was not observed. | 1985 | 3995929 |
| luminescence studies of lanthanide ion binding to parvalbumin. | luminescence methods were used to examine the interaction of eu(iii) and tb(iii) with parvalbumin isozyme iii from pike (esox lucius). the bound lanthanide ions were excited both directly, via laser irradiation, and indirectly, via fluorescence energy transfer from adjacent phenylalanine residues. at high (175 microm) protein concentrations, the lanthanide titration curves exhibited pronounced quenching of luminescence at ln3+:parvalbumin ratios above 2:1, in agreement with earlier reports (dona ... | 1985 | 4008498 |
| occurrence of n-acylethanolamine phospholipids in fish brain and spinal cord. | n-acylethanolamine phospholipids were identified in the central nervous system of the fresh water fish, pike (esox lucius) and carp (cyprinus carpio), at levels ranging from 0.1 to 0.9% of total phospholipid. the n-acylethanolamine phospholipids of carp brain were isolated and characterized by chemical, biochemical and spectroscopic methods. two major species, 1,2-diacyl-sn-glycero-3-phospho(n-acyl)ethanolamines (approx. 30%) and 1-o-(1'-alkenyl)-2-acyl-sn-glycero-3-phospho(n-acyl)ethanolamines ... | 1985 | 4016139 |
| the thymus glands and lymphosarcoma in the pike, esox lucius l. (pisces; esocidae) in ireland. | 1970 | 4142390 | |
| oxygen dissociation and content of blood from alaskan burbott (lota lota), pike (esox lucius) and grayling (thymallus arcticus). | 1973 | 4148985 | |
| in vitro steroidogenesis in the testicular tissue of the fresh water teleost esox lucius. | 1970 | 4246420 | |
| new series of fatty acids in northern pike (esox lucius). | 1974 | 4444420 | |
| [the relative duration of similar periods in the early embryogenesis of teleosts]. | the absolute (in min.) and relative (in the number of tau0) duration of the periods of cleavage, epiboly and that between the onset of gastrulation and the stage of 10 pairs of somites were determined in cyprinus carpio l., misgurnus fossils l., esox lucius l. and coregonus peled gmel. at different constant temperatures. the stability of the dimensionless characteristics for the duration of each of these periods in the species in question within the limits of optimum temperatures was shown. a co ... | 1974 | 4469609 |
| [so-called urinary bladder of the teleosts: studies on esox lucius]. | 1974 | 4470614 | |
| lipid metabolism in the northern pike (esox lucius l.). 1. the fatty composition of the northern pike. | 1973 | 4709588 | |
| lipid metabolism in the northern pike (esox lucius l.). ii. the composition of the total lipids and of the fatty acids isolated from lipid classes and some tissues of the northern pike. | 1973 | 4709589 | |
| low molecular weight proteins of pike (esox lucius) white muscles. i. extraction and purification-polymorphism. | 1973 | 4709987 | |
| low molecular weight proteins of pike (esox lucius) white muscles. ii. chemical and physical properties. | 1973 | 4736651 | |
| the amino acid sequence of the pike (esox lucius) parvalbumin 3. | 1973 | 4751989 | |
| electron microscopy of sarcoma of the northern pike (esox lucius l.). | 1973 | 4798252 | |
| the effects of pancreatic hormones, catecholamines, and glucose loading on blood metabolites in the northern pike (esox lucius l.). | 1974 | 4828878 | |
| lipid metabolism in the northern pike (esox lucius l.). 3. in vivo incorporation of 1-14c-acetate in the lipids. | 1974 | 4842819 | |
| extraction of a secretinlike factor from the intestines of pike (esox lucius). | 1974 | 4851988 | |
| [electron microscopic studies of the esophagus of the pike (esox lucius l.). i. fine structure of the "single granule cells"]. | 1968 | 4886978 | |
| the development and mature structure of dentine in the pike, esox lucius, analyzed by bright field, phase and polarization microscopy. | 2016 | 4918183 | |
| [mitochondrial origin of the vitellus in esox lucius l. ovocyte]. | 1969 | 4975495 | |
| hemic neoplasms in cold blooded animals: lymphosarcoma in the pike esox lucius. | 1970 | 5006225 | |
| electron microscopic investigations of organ of gravitation: the utriculus of the pike (esox lucius). | 2008 | 5225101 |