| [inhalation vaccination of chickens against newcastle disease using the soviet disk aerosol generator (dag-2)]. | | 1978 | 96562 |
| [induction of components of the natural precipitation system (gans) and another antibody after alloimmunization with serum or egg yolk in fowl]. | detailed analysis was performed in 17 selected serums obtained through alloimmunization of 64 receptors (cocks and hens, wp x rir hybrids) of type 0 in the gans system. the serum or egg yolk from hens of type a or b in the gans system, used for immunization, was applied in five intramuscular injections with or without using freund's complete adjuvant. it was found out that substance a gans was present in 16 serums of the total number of those which were examined, so that in the receptors the app ... | 1978 | 96563 |
| [induction of hepatic microsomal enzymes in chickens effected by various persistent foreign materials]. | changes in the levels of microsomal proteins, in the activity of microsomal aniline hydroxylase, and in the effectivity of thiopental were studied in chickens given the czechoslovak-produced type of polychlorinated biphenyls - delor 103. the increased activity of aniline hydroxylase and the decrease of thiopental sleeping time in chickens exposed to the action of delor 103 indicate that this preparation is able to induce liver microsomal enzymes in doses as low as 5 mg per kg of feed. the induct ... | 1978 | 96564 |
| the organization, composition and matrix of hepatocyte nuclei exposed to alpha-amanitin. | alterations in the structure and molecular composition of avian hepatocyte nuclei were compared following administration in vivo of lethal and sub-lethal doses of alpha-amanitin. this toxin interferes with extranucleolar transcription by direct inhibition of rna polymerase ii activity. the resultant effects include: extensive condensation of chromatin, displacement of nucleoplasmic contents and fragmentation of nucleoli. changes in nuclear morphology were quantitated by stereometry and related t ... | 1978 | 96580 |
| [application of frozen stored various animal red blood cells for the virological and serological tests (author's transl)]. | | 1977 | 96589 |
| vitamin a and thyroxine carrier proteins in chicken plasma: steady-state control of the plasma level of free retinol-binding protein and free thyroxine. | 1. the binding parameters of prealbumin-2 with retinol-binding protein and thyroxine (t4) revealed the existence of distinct and multiple sites for both retinol-binding protein and t4. 2. from the analysis of binding parameters of retinol-binding protein with prealbumin-2 it is clear that under steady-state conditions about 99% of the holo-retinol-binding protein remains bound to prealbumin-2. 3. equilibrium dialysis studies on binding properties of thyroid hormones with prealbumin-2 revealed th ... | 1978 | 96868 |
| comparison of effects of normal rabbit sera and anti-cock sperm sera on rabbit sperm, including comparison of effects on the sex ratio. | | 1978 | 96880 |
| [nonspecificity of antiviral protein action]. | the authors studied the antiviral activity of the informative rna of antiviral protein (m-rna avp) isolated from the cells following superinduction of interferon in them for the purpose of ascertaining the action specificity of the product of their translation--avp. following the administration of m-ran avp a marked (from 1 to 5 lg pfu/mil) reduction of the infectious titres was observed in the homologous and heterologous cells. rna preparations from control (noninduced) cells possessed a weak ( ... | 1978 | 96890 |
| [formation of cutaneous nerve trunks in the chick. ultrastructural and quantitative analysis]. | in chick skin structuration of nervous trunks takes place at 14-15 days of incubation, at the time of formation of the adult pattern of cutaneous innervation. at this same stage, myelogenesis begins, but develops mainly after hatching: only 4% of axons are myelinated at hatching, 40% in 6-week old chickens and 60% in adults. this "critical" stage (14-15 days of incubation) apparently corresponds to the stabilization of cutaneous nerve supply. | 1978 | 96985 |
| effects of thyroid state on ornithine decarboxylase activity of the adenohypophysis of the rat and chicken. | | 1978 | 97166 |
| pattern of precipitin lines revealed in gel diffusion tests by syndrome virus of chickens. | | 1977 | 97211 |
| entry of beta-n-oxalyl-l-alpha,beta-diaminopropionic acid, the lathyrus sativus neurotoxin into the central nervous system of the adult rat, chick and the rhesus monkey. | | 1978 | 97367 |
| sarcoplasmic calcium-binding proteins in protochordate and cyclostome muscle: characterization of a new protein from amphioxus. | a sarcoplasmic calcium-binding protein (scp) has been purified from the muscle of the protochordate amphioxus and shown to be more similar to invertebrate scp's than to their counterpart found in vertebrates, i.e. parvalbumins. the amphioxus protein has a pi of 4.9, is rich in tyrosine and tryptophan, has a molecular weight of 22,000 and binds strongly 2ca2+ with a pk of 7.88. magnesium competes with calcium for only one of the two metal-binding sites and induces positive cooperativity in ca2+ b ... | 1978 | 97516 |
| maternal vitamin e alters passively acquired immunity of chicks. | passively transferred antibody levels were significantly increased in plasma of two- and seven-day-old chicks when the dams were fed 150 and 450 p.p.m. vitamin e prior to immunization with brucella abortus. however, if the hens were fed 90, 300 and 900 p.p.m. vitamin e before immunization, the chicks evidenced no increase in antibody titers relative to controls. this nonlinear antibody response by the reticulo-endothelial system to vitamin e confirms in gallus domesticus similar results reported ... | 1978 | 97647 |
| response of broiler chickens to low level intake of polychorinated biphenyl isomers. | commercial-type broiler starter and finisher feeds containing 0, .1, 1.0, 5.0, 10.0, or 20.0 ppm of polychlorinated biphenyl isomers (pcbs) as aroclor 1254 (monsanto) were fed to male broiler chicks (arbor acres 70 x cobb) from hatching to 8 weeks of age. feed intake and body weights were recorded on a weekly basis. the birds were killed at 8 weeks of age and samples of leg and breast muscle and adipose tissue were removed from each bird for pcbs analysis by gas chromatography (pesticide anal. m ... | 1978 | 97648 |
| [polychlorinated biphenyls (pcb) in food. the situation in the federal republic of germany (author's transl)]. | in a coordinated research program of the federal ministry of research and technology (bmft), a screening study was carried out with representative samples. in spite of rather large ranges of pcb concentrations, the most important food-stuffs show clearly defined clusters with mean values of approx. 0.005 microgram/g in low fat food components of plant origin such as cereals or potatoes, approx. 0.05 microgram/g in vegetable fats, approx. 0.3 microgram/g in fat from milk, butter and cheese, appro ... | 1978 | 97878 |
| nutrition and fertility: some iconoclastic results. | in this paper, the evidence available is used to conclude that, as levels of nutrition increase from insufficient to excessive, fertility first increases and then decreases. this suggests that the relationship between fertility and nutrition has the shape of an inverted u. next, the hypothesis is explicitly tested using countries as units of observation. in the statistical analysis, the possibility of spurious relationships is carefully controlled. the results strongly support the hypothesis tha ... | 1978 | 98038 |
| immunochemical relationship between natural haemagglutinins and immune antibodies in the toad (bufo paracnemis). | natural and induced antibodies from serum of bufo paracnemis were isolated by specific immunoadsorption (natural antibodies and specific induced antibodies, respectively). natural agglutinins specific to rabbit red blood cells (rrbc) showed, by immunodiffusion (id) and by immunoelectrophoresis (iep) against rabbit anti-b, paracnemis serum, at least three precipitation lines. similar patterns were obtained with the specific induced antibodies. immunochemical identity between natural and induced a ... | 1978 | 98099 |
| the effect of thyrotropin-releasing hormone (trh) and somatostatin (ghrih) on growth hormone and prolactin secretion in vitro and in vivo in the domestic fowl (gallus domesticus). | the effects of thyrotropin-releasing hormone (trh) on growth hormone (gh) and prolactin (prl) secretion have been investigated in vitro and in vivo in domestic fowl. in both conscious and anaesthetized immature chickens the administration (i.v.) of trh (2.5 and 25 microgram/kg) significantly increased the concentration of plasma gh. the simultaneous administration of somatostatin (ghrih), 2.5 microgram/kg, to conscious birds significantly reduced the magnitude of the gh response to trh treatment ... | 1978 | 98725 |
| the effects of trichothecene toxins on the bursa of fabricius in day-old chicks. | the effects of t-2 toxin, fusarenon x (fx), and nivalenol (nv) on the bursa of fabricius in the day-old chick were examined. after injections of 5 mg/kg of the mycotoxins into the residual yolk sac, cellular injury was limited at first to the smaller epithelial cells with coarse microvilli, which were located in the central portion of the follicle-associated epithelium. subsequently necrosis spread out to the periphery. degeneration and necrosis followed in the lymphoid cells in the lymphoid fol ... | 1978 | 98906 |
| species differences in the biotransformation of 4-(2-methyl-3-(4-chlorobenzoyl)phenyl)butanoic acid (ru 16029). | 1. 4-(2-methyl-3-(4-chlorobenzoyl)phenyl)butanoic acid (ru 16029) is a potent anti-inflammatory and analgesic agent. in humans, its ketone group is rapidly reduced to an alcohol, whereas in rats, mice and dogs, its butanoic side-chain is rapidly oxidized to the corresponding acetic acid. 2. the extent of this oxidation was studied in eleven species. cats, dogs, rabbits, hens and rodents readily oxidized the side-chain; humans, baboons and pigs showed only weak oxidizing capacity. 3. species diff ... | 1978 | 98921 |
| behavioural, electrocortical and body temperature effects after intracerebral infusion of trh in fowls. | | 1978 | 99322 |
| early ontogeny of germinal center formation in the chicken. | germinal center formation was studied in the spleen of young chickens immunized in ovo and at the time of hatching. when immunization was performed on day 18 in ovo and on the day of hatching, the first germinal centers were observed at 4 days. this is markedly earlier than in unimmunized chickens, where the first germinal centers appear at the age of 10 days or later. germinal center formation preceded significant antibody production. the possible role of germinal centers in the generation of i ... | 1978 | 99335 |
| leu-enkephalin-like material in nerves and enterochromaffin cells in the gut. an immunohistochemical study. | the distribution and cellular localization of leu-enkephalin in the gut and pancreas was studied by immunohistochemistry using two different antisera, one specifically directed against leu-enkephalin and the other cross reacting with met-enkephalin. the results were identical with both antisera. in all species examined, enkephalin-immunoreactive material was found in nerves of the smooth muscle, particularly numerous in the myenteric plexus. here, immunoreactive nerve cell bodies were observed o ... | 1978 | 99394 |
| development of leucocytozoon caulleryi in chick embryos infected by biting of culicoides arakawae through shell membrane. | chick embryos were infected with leucocytozoon caulleryi by biting of the midge, culicoides arakawae, through the shell membrane. schizonts of l. caulleryi were detected in the chorioallantoic membrane and most of the internal organs of embryos and of chicks after hatching. the development of schizonts was slower in embryos than in chickens. soluble antigens of l. caulleryi were demonstrated by the precipitation test in the allantoic fluid and blood from the embryos and chicks. no erythrocytic s ... | 1978 | 99671 |
| [isolation and identification of clamydia psittaci as the pathogen in enzootic abortion of sheep in eastern slovakia]. | abortions in ewes occurred on a large scale in three localities in eastern slovakia. antibodies to the group-type ornithosis antigen were detected in titres of 1 : 128 to 1 : 2048 in the aborting ewes in the mentioned localities. suspensions were prepared from the four samples of material, obtained either from the placentae and afterbirths of the aborting ewes or from the tissues of the aborted foetuses. seven-day old yolk sacs of chicken embryos were infected with these suspensions. four strain ... | 1978 | 99861 |
| [immunological aspects of marek's disease in chickens with maternal antibodies]. | the dynamics of the production of immunoprecipitation antibodies to marek's disease virus was studied in the serum of chickens with maternal antibodies in relation to the occurrence of the immunoprecipitation antigens of marek's disease virus in feather follicles. one-day-old chickens were infected by the contact method with marek's disease virus. the first occurrence of immunoprecipitation antigen was detected on the 14th day after infection and this occurrence persisted throughout the experime ... | 1978 | 99864 |
| refractory sprue: recovery after removal of nongluten dietary proteins. | a 44-year-old woman with diarrhea, weight loss, and a small-bowel biopsy consistent with adult celiac disease failed to improve on a gluten-free diet. despite in-hospital supervision at two university medical centers and addition of corticosteroid therapy, diarrhea and wegith loss continued, resulting in life-threatening nutritional depletion. she was transferred to the university of chicago and made full nutritional recovery with total parenteral nutrition. exploratory laparotomy showed no abno ... | 1978 | 100032 |
| [toxoplasmosis transmission by blood transfusion? (author's transl)]. | t-cells of the chicken tumour hprs-1, mouse mastocytoma cells, friend virus-transformed erythroleukaemia cells as well as normal human, mouse and chick erythrocytes were tested for their receptivity to toxoplasma infection. the studies indicate that t-cells and mastocytoma cells, which may be counted as part of the white blood cell series, have the highest invasion rate after incubation with toxoplasma. friend-erythroleukaemia cells were less often affected; mature human, mouse and chick erythro ... | 1978 | 100300 |
| differential inhibition of myoblast fusion. | | 1978 | 100355 |
| immunological comparison of the proteins of chicken and rat liver ribosomes. | a comparison of the proteins of chicken and rat liver ribosomes using immunochemical techniques was undertaken. the procedures included quantitative precipitation, passive hemagglutination, and immunodiffusion on ouchterlony plates. the results indicate that antisera specific for chicken or rat liver ribosomes recognize only about 20% of common determinants. while there are important reservations, the results suggest extensive differences in the proteins of rat and chicken liver ribosomes. despi ... | 1978 | 100494 |
| identification of rickettsia rickettsii in formalin-fixed, paraffin-embedded tissues by immunofluorescence. | with slight modification of a trypsin digestion technique, rickettsia rickettsii were demonstrated specifically by immunofluorescence staining in formalin-fixed, paraffin-embedded tissue sections from a human, rhesus monkey, and guinea pig with rocky mountain spotted fever and in infected membranes from a chicken embryo. tissues were cut at 4 micron and, using geltain as a tissue adhesive, were hydrated in a routine manner. sections were then digested in refrigerated 0.1% trypsin for 16 h, washe ... | 1978 | 100509 |
| identification of neisseria gonorrhoeae from primary cultures by a slide agglutination test. | hen antigonococcal lipopolysaccharide hen serum was used in a simple slide agglutination test for the identification of neisseria gonorrhoeae from primary isolates. | 1978 | 100511 |
| purification and characterization of carnosine synthetase from mouse olfactory bulbs. | | 1978 | 100576 |
| immunochemical and quantitative comparison of myoglobin components in various muscle tissues of the chicken (gallus gallus domesticus). | | 1978 | 100643 |
| [study on the possible presence of aflatoxin b 1 in liver and muscle tissue of slaughter animals]. | seventy-seven samples of liver (from pigs, bulls, cows, broiler chickens, layers), twenty-eight samples of white muscle (from pigs, broilers, layers), and twenty-four samples of red muscle (from pigs, broilers, layers) were examined by the modified jacobson method (jacobson et al. 1971) for the contingent presence of aflatoxin b1. the samples came from healthy animals, part of them from animals fed non-traditional feed containing pig excrements. positive findings were only obtained in two sample ... | 1978 | 100929 |
| [dynamics of uric acid concentration in the liver of cockerels subjected to model stress situations induced by fasting]. | a model stress situation was created by nutrition deprivation. the experiment was performed with 130 cockerels of the initial breed white leghorn. the experimental cockerels of the age of 18 to 24 days fasted for 24, 48 and 72 hours. uric acid was determined in the supernatant of liver homogenate by means of a colorimetrically reductometric method with phospho-wolframic agent. a significant increase in the uric acid concentration in the liver of cockerels was found out during the model stress: t ... | 1978 | 100934 |
| phospholipid composition of rickettsia prowazeki grown in chicken embryo yolk sacs. | the phospholipid composition and phospholipid fatty acid composition of purified rickettsia prowazeki were determined. the lipid phosphorous content was 6.8 +/- 1.3 microgram/mg of total rickettsial protein. the major phospholipid was phosphatidylethanolamine (60 to 70%); phosphatidylglycerol constituted 20%, and phosphatidylcholine constituted 15%. small amounts of phosphatidylserine and cardiolipin were detected. the principal fatty acids were 18:1, 16:1, and 16:0. the fatty acid composition o ... | 1978 | 101511 |
| effect of diet on adhesion and invasion of microflora in the intestinal mucosa of chicks. | | 1978 | 101987 |
| [effect of dietary nitrogen compounds and urea on the gldh and ds activities in broilers]. | the influence of concentration of nitrogenous matters (n-matters) and urea supplement in diet for broilers was studied, as exerted on the activities of the enzymes glutamate dehydrogenase (gldh) and glutamine synthetase (gs) in liver, kidney, tissue and contents of the cecum. if 2% urea had been substituted for a portion of n-matters, no significant differences in the activities of both enzymes in liver and cecum were found. higher levels of gldh were recorded in the kidney of broilers given die ... | 1978 | 102069 |
| hemolytic activity of rubella virus. | | 1978 | 102076 |
| a modified sperber technique for direct estimation of true renal tubular excretion fraction. | the sperber technique in the hen is particularly suitable for the study of renal tubular secretion. however, results obtained with this technique vary considerably, due to an unpredictable and highly variable shunting of renal portal blood. in an attempt to get a total and stable renal perfusion by portal blood from the leg, appropriate shunt vessels were ligated. this procedure was found to force all portal blood from the leg to perfuse the ligated kidney, without affecting the symmetry of glom ... | 1978 | 102110 |
| purification, subunit structure, and amino acid composition of avian erythrocyte adenosine monophosphate deaminase. | | 1978 | 102336 |
| [enzymes of glycogen metabolism in chick embryo liver]. | at all stages of ontogenesis glycogen phosphorylase (ec 2.4.1.1) from liver chick embryos in represented by an isoenzyme whose properties are close to those of isoenzyme il or f. total enzyme activity (a+b forms) from the 8th day of development up to hatching gradually increases 1.5-fold, a practically complete activation of enzyme being observed by the end of embryogenesis. phosphorylase b possesses high catalytic activity in the presence of 1 mm amp and it activated by protamine and 0.2 m na2s ... | 1978 | 102372 |
| is phosphorylase concerned solely with glycogen degradation in vivo? | | 1978 | 102425 |
| onset of troponin synthesis in the chick wing bud. | | 1978 | 102553 |
| thyroxine-binding proteins of duck and chicken sera. | | 1978 | 102559 |
| [genetic limitations of erythrocyte lysis by bacteria of the genus salmonella]. | lytic effect of salmonella bacteria on the erythrocates of 1301 humans (including 150 twins), 1059 hens, 600 mice, 33 guinea pigs, 47 rabbits, 22 horses, 16 sheeps, 7 dogs, 2 cats and 2 monkeys was investigated. erythrocytes of all horses, guinea pigs and rabbits tested appeared to be sensible. the same cells of humans, sheeps, hens, dogs, monkeys and cats turned to be either sensible, or stable. human erythrocytes were the most stable. erythrocytes of humans having had typhus or other salmonell ... | 1978 | 102562 |
| immunocytochemical localization of the major polypeptides of the nuclear pore complex-lamina fraction. interphase and mitotic distribution. | this laboratory has previously isolated a fraction from rat liver nuclei consisting of nuclear pore complexes associated with the proteinaceous lamina which underlies the inner nuclear membrane. using protein eluted from sodium dodecyl sulfate (sds) gels, we have prepared antibodies in chickens to each of the three predominant pore complex-lamina bands. ouchterlony double diffusion analysis shows that each of these individual bands cross-reacts strongly with all three antisera. in immunofluoresc ... | 1978 | 102651 |
| hemolysis-in-gel (hig) test for antibodies to influenza a, measles and mumps using liquid nitrogen freezed erythrocytes coupled with the respective viral antigen. | a drawback with the hemolysis-in-gel test is the constant need for fresh erythrocytes which must be treated with virus before incorporation in the gel. this problem was overcome by freezing small droplets containing erythrocytes to which antigen had been attached. the droplets were stored at -70 degrees c or in liquid nitrogen. this modification was applied in detecting antibodies to influenza, measles and mumps viruses and the results were shown to equal those obtained with fresh erythrocytes. | 1978 | 102699 |
| folate antagonists. 13. 2,4-diamino-6-](alpha,alpha,alpha-trifluoro-m-tolyl)thio]quinazoline and related 2,4-diamino-6-[(phenyl- and naphthyl)thio]quinazolines, a unique class of antimetabolites with extraordinary antimalarial and antibacterial effects. | an array of nonclassical thioquinazoline analogues (viii) of methotrexate was prepared by cyclization of the requisite 2-amino-5-(arylthio)benzonitrile with chloroformamidine hydrochloride (28--79%). the aminonitrile precursors were obtained by sncl2-hcl reduction (28--99%) of the corresponding 2-nitro-5-(arylthio)benzonitriles, which were synthesized by the condensation of the appropriate 5-chloro-2-nitrobenzonitriles with various arylthiols (36--83%). many of the thioquinazolines (viii) showed ... | 1978 | 102792 |
| efficacy and toxicity of furazolidone in veterinary medicine. (a review). | | 1978 | 103274 |
| bioavailability of acetylated derivatives of methionine, threonine, and lysine. | supplementation of vegetable proteins with various essential amino acids is an effective means of improving proteins quality. unfortunately, simple amino acid additions to foods which must be heat processed and cooked is not without consequences. under these conditions, methionine interacts with reducing sugars yielding methional through the strecker degradation reaction. this generation of methional during heat treatment imparts undesirable sulfur odors and flavors to the food rendering it orga ... | 1978 | 103374 |
| high-performance thin-layer chromatography and densitometric determination of brain ganglioside compositions of several species. | | 1978 | 103458 |
| liver mixed function oxidases in chickens: induction by polychlorinated biphenyls and lack of induction by ddt. | microsomal hydroxylase and demethylase activities were compared in livers from white leghorn cockerels fed polychlorinated biphenyls (pcbs) containing 21 to 68% chlorine, or p,p'-ddt. the higher chlorinated pcbs, aroclor 1254 and 1268, were potent inducers of hepatic enzyme activity while ddt did not induce these enzymes. aroclor 1254 was the most potent inducer because feeding 5 ppm increased liver aminopyrine demethylase activity 1.5x but did not affect liver weight. feeding 50 and 500 ppm of ... | 1978 | 103505 |
| enzymatic and chemical properties of an endopeptidase from the larva of the hornet vespa crabro. | an endopeptidase from the larvae of the hornet vespa crabro has been purified to homogeneity. the enzyme has been characterized with respect to molecular weight, amino acid compositon, and amino- and carboxyl-terminal sequences. the catalytic properties of the hornet protease are similar to those of bovine chymotrypsin with respect to inactivation by phenylmethanesulfonyl fluoride and carbobenzoxyphenylalanine chloro ketone and preferential peptide bond cleavage at aromatic amino acid residues. ... | 1978 | 103567 |
| structure and function of serum and membrane immunoglobulin d (igd). | | 1978 | 103684 |
| further studies of an anomalous cross-reaction involving worm and vertebrate lysozymes. | | 1978 | 103809 |
| gonococcal color and opacity variants: virulence for chicken embryos. | previous studies have noted that the prevalence of certain gonococcal colony types is influenced by the physiological state of the human host. consequently eight different gonococcal strains were passed on clear typing medium, and opaque (op) and transparent (tr) variants of heavily pilated (p++) bacteria were selected. p++op and p++tr were injected into 11-day-old chicken embryos, and the resulting mortality was determined. in every case the tr variants were more lethal to the embryos than were ... | 1978 | 103830 |
| antibody-dependent cell-mediated cytotoxicity in cattle: activity against 51cr-labeled chicken erythrocytes coated with protozoal antigens. | bovine mononuclear cells in the presence of bovine anti-chicken erythrocyte sera at high dilutions induce release of chromium-51 from labeled chicken erythrocytes. bovine effector cells are capable of recognizing both bovine immunoglobulin g(1) and bovine immunoglobulin g(2); in contrast, human effector cells only recognize immunoglobulin g(1). effector cell activity of bovine mononuclear cells is equally distributed between peripheral blood and spleen. as in other species, thymus and lymph node ... | 1978 | 103832 |
| multinationals and health: reflections on the seveso catastrophe. | on july 10, 1976, a cloud of vaporized products containing dioxin escaped from a deposit of a plant of the icmesa firm in the northern suburbs of milan. the fallout was deposited on a vast zone in the municipalities of desio, seveso, meda, and cesano. dioxin was not the desired product of the industrial process, but rather an impurity which generally accompanies trichlorophenol, and, to a smaller extent, the products synthesized from trichlorophenol. among these there are hexachlorophene and the ... | 1978 | 103846 |
| chicken ovalbumin is synthesized and secreted by escherichia coli. | by recombinant dna methods, the chicken ovalbumin structural gene has been fused to escherichia coli lac transcriptional and translational control regions. when a plasmid containing the hybrid gene was introduced into e. coli, a protein identified as ovalbumin by immunoreactivity and sodium dodecyl sulfate/polyacrylamide gel electrophoresis was synthesized. the chicken ovalbumin made in bacteria was full length (43,000 daltons) and constituted 1.5% of the cellular protein. in addition, the micro ... | 1978 | 104296 |
| [quantitative determination of calcium-binding protein by the radial immunodiffusion method]. | | 1978 | 104434 |
| manganese metabolism and its function. | | 1978 | 104445 |
| [demonstration of an active transepithelial sodium transport on the chicken-gizzard mucosa]. | | 1978 | 104489 |
| histopathological changes in fowls bitten by the spitting snake naja nigricollis. | | 1978 | 104494 |
| occurrence of 7-dehydrocholesterol in the uropygial gland of domestic fowls. | histochemical studies on the uropygial gland of domestic fowls have shown the presence of sterols (among which cholesterol and its esters) in the lipidic fraction of the gland secret. beta-glucuronidase activity beside a5 3beta- and 17beta-hydroxysteroid dehydrogenase activities suggests that uropygial gland might be involved in sterols metabolism. by thin layer chromatography cholesterol and 7-dehydrocholesterol can be separated from the uropygial extracts and these compounds can be identified ... | 1978 | 104527 |
| congenital defects due to hyperthermia. | | 1978 | 104560 |
| high-resolution gas chromatographic profiles of volatile organic compounds produced by microorganisms at refrigerated temperatures. | three different strains of bacteria isolated from spoiled, uncooked chicken were grown in pure culture on trypticase soy agar supplemented with yeast extract. the volatile organic compounds produced by each culture were concentrated on a porous polymer precolumn and analyzed by high-resolution gas chromatographic mass spectrometry. twenty different compounds were identified. both qualitative and quantitative differences in the chromatographic profiles from each culture were found. | 1979 | 104660 |
| antigenic relationship between influenza c viruses. | the object of this study was to determine whether antigenic groupings exist among influenza c viruses. altogether seven influenza type c strains were examined by reciprocal haemagglutination-inhibition and serum neutralization tests with sera produced in ferrets. some biological properties were also compared and differences were found in their ability to agglutinate erythrocytes from various species, in their ability to adsorb onto rat and fowl erythrocytes, and in their rates of elution from th ... | 1978 | 104696 |
| [infection of dogs and cats from the sarcocysts of hens and ducks]. | | 1979 | 105457 |
| [precipitins and neutralizing antibodies in marek's disease]. | | 1978 | 105458 |
| [evaluation of the immune state of poultry against newcastle virus via various serological reactions]. | studied were 336 sera of vaccinated and challenged chickens, 76 egg extracts, and 36 birds following challenge for the presence of serum antibodies against the newcastle disease virus, using the hemagglutination-inhibition reaction, the agar gel diffusion precipitation reaction, and the virus-neutralizing test. the values of the antihemagglutinins, precipitins, and virus-neutralizing antibodies were investigated in relation to the immunobiologic resistance of birds to a velogenic newcastle disea ... | 1978 | 105460 |
| the ultrastructure of the crop in the zinc-deficient chicken. | | 1978 | 105512 |
| absence of indoleamine-accumulating neurons in the retina of humans and cynomolgus monkeys. | indoleamine-accumulating neurons have previously been detected in cats, rabbits, goldfish, chicken, pigeons, and cebus monkeys, and were therefore also looked for in humans and in old world monkey. cynomolgus irus. the monkey eyes were injected intravitreally with 50 microgram 5,6-dihydroxytryptamine, 5 microgram alpha-methylnoradrenaline, or both drugs simultaneously. the human retinas were incubated in either drug. previous observations on the distribution of dopaminergic neurons were confirme ... | 1979 | 105648 |
| relationship between biotin-binding proteins from chicken plasma and egg yolk. | the plasma of laying hens contains a specific biotin-binding protein that appears to be identical with an egg-yolk biotin-binding protein. both proteins are saturated with biotin and require elevated temperatures to effect the exchange of [14c]biotin for the protein-bound vitamin. the heat-exchange curve in each case is the same and differs sharply from that of avidin, the egg-white biotin-binding protein. on sephadex g-100 gel filtration, plasma and yolk biotin-binding proteins were each eluted ... | 1978 | 105724 |
| thermostable antigens from the bone marrow of several animal species. | studies on bone marrow extracts from ten animal species have revealed the presence of thermostable antigens. similar antigens were found in other organs as shown by immunodiffusion and cross-reactivity was demonstrated between the thermostable proteins from horse and dog and between cow and sheep proteins. using an immunoenzymatic reaction with glucose oxidase as the marker, the thermostable antigens were localized in the blood and bone marrow polymorphonuclear leukocytes and the myeloid cell li ... | 1978 | 105786 |
| animal models for the comparative assessment of neurotoxicity following repeated administration of vinca alkaloids. | neurotoxicity is the major side effect occurring during the clinical use of vincristine (vcr). animal models predictive of potential neurotoxicity would be very useful in the preclinical development of new vinca compounds. to simulate conditions in which neurotoxicity is produced during the clinical use of vcr, experimental animals (except the guinea pig) were given the test compounds by the iv route over a prolonged time period. doses were selected based on the production of leukopenia. vindesi ... | 1979 | 105807 |
| studies on iron deficiency anaemia. | | 1978 | 105994 |
| in vivo effect of phytohaemagglutinin on the thymus and bursa of fabricius. | | 1979 | 106595 |
| diamine oxidase and polyamine oxidase activities in normal and transformed cells. | 1. the activity of diamine oxidase (ec 1.4.3.6) in normal rat kidney cells and in normal rat kidney cells transformed by avian sarcoma virus (b77 strain) growing in tissue culture varies with the stage of growth. there is an initial stimulation of activity by 24h after seeding, followed by a steep decline during exponential growth (48-72h). enzyme activity decreases even further as the cells reach saturation density (confluence) after 4 days in culture when the activity in normal rat kidney cell ... | 1979 | 106846 |
| identification of organic phosphorus covalently bound to collagen and non-collagenous proteins of chicken-bone matrix. the presence of o-phosphoserine and o-phosphothreonine in non-collagenous proteins, and their absence from phosporylated collagen. | non-collagenous phosphoproteins, almost all of which can be extracted in edta at neutral ph in the presence of proteinase inhibitors, are identified in the matrix of chicken bone, and are therefore not covalently bound to collagen. similarly, all the peptides containing gamma-carboxyglutamic acid are present in the edta extract and none in the insoluble residue, confirming that none is covalently linked to chicken bone collagen. however, organic phosphorus is also found to be present in chicken ... | 1979 | 106848 |
| [listeriasis in man and animal in the netherlands (1958-1977)]. | | 1979 | 107461 |
| comparative neurochemical and physiological characteristics of catalepsy-type rest and sleep. | | 1978 | 107471 |
| the viability of cryopreserved aegyptianella pullorum carpano, 1928 in the vector argas (persicargas) walkerae kaiser and hoogstraal, 1969. | | 1979 | 107668 |
| an enzyme-linked immunosorbent assay (elisa) for detecting chicken anti-reovirus antibody at high sensitivity. | an enzyme-linked immunosorbent assay (elisa) with high sensitivity was developed for use in the avian system. anti-reovirus antibody produced in chickens against the isolants s1133, umi-203, reo-25, and winterfield were detected with this method at high titers (up to 1:14,000). | 1978 | 107949 |
| localization of prostaglandin synthetase in chicken epiphyseal cartilage. | prostaglandin synthetase activity in high-speed particulate fractions of chick epiphyseal cartilage has been characterized with respect to cofactor requirements, ph optimum, buffer-ion effects, types of prostaglandins formed, and the distribution of prostaglandin synthetase activity in zones of the epiphyseal plate. direct homogenization of cartilage was found to be more efficacious than releasing chondrocytes by enzymatic digestion for preparation of prostaglandin synthetase, a homogenization t ... | 1978 | 108004 |
| interaction of anti-staphylococcal protein a antisera with fc receptor-bearing human normal lymphocytes. | staphylococcal protein a (spa) is known to bind the fc region of igg of most mammalians and to possess biologic activity both in vivo and in vitro, where it acts as a lymphocyte polyclonal mitogen. its binding to the fc gamma portion bears many features of the antibody-antigen interaction, such as the dissociation constant, lattice formation, and complement activation. moreover, spa seems to compete with membrane fc receptors for igg so that the possibility of an interaction with the same ch dom ... | 1979 | 108112 |
| thrombocyte migration and the release of thrombocyte inhibitory factor (thrif) by t and b cells in the chicken. | the elaboration of various inhibitory factors by sensitized lymphocytes has been reported for both mammals and birds. until recently, the ability of the b cell to elaborate these had been questioned by a number of investigators. we have demonstrated the release of a lymphocyte inhibitory factor from the avian thymus and bursal lymphocyte. the avian thrombocyte is active in haemostasis as well as being a phagocytic cell. we have demonstrated that the ability of the thrombocyte to migrate, signifi ... | 1979 | 108206 |
| chicken parvalbumin. comparison with parvalbumin-like protein and three other components (mr = 8,000 to 13,000). | procedures for a rapid isolation and purification of parvalbumin (mr = 12,600), parvalbumin-like protein (mr = 12,800), and three other polypeptides with molecular weights of 12,400 (component 1), 11,700 (component 2), and 8,000, respectively, from chicken leg muscle, are described. a direct comparison of parvalbumin with these other proteins showed distinct differences in the amino acid compositions, charge, and immunological behavior. parvalbumin has two high affinity sites for ca2+ with a kdi ... | 1979 | 108275 |
| effect of chlorinated hydrocarbons on reproductive performance of adult white leghorn male chickens. | two experiments of 20 and 40 weeks duration were conducted to determine the effects of feeding dieldrin or pcb (aroclor 1254) on the reproductive performance of adult white leghorn males. dieldrin at the levels used (0, 25, and 50 ppm) produced no significant changes in semen volume, semen concentration, fertility, and hatchability of fertile eggs. mortality increased with increased levels of dieldrin and appeared related to duration of exposure to the pesticide. a significant reduction (p less ... | 1978 | 108672 |
| preparative cell electrophoresis with d2o as a stabilizing agent. | the method of ascending preparative cell electrophoresis in a nonstabilized vertical column can be greatly improved by layering the cells on a starting cushion of buffer prepared in d2o and by stabilizing the liquid column above it with a d2o gradient. d2o/h2o mixtures have no apparent biochemical effects on the cells, and their physiochemical effects are short-lived and reversible. it was possible, by this method, to separate a mixture of glutaraldehyde-fixed erythrocytes of three species (rabb ... | 1979 | 108673 |
| isolation and characterization of thiamin-binding protein from chicken egg white. | a thiamin-binding protein was isolated and characterized from chicken egg white by affinity chromatography on thiamin pyrophosphate coupled to aminoethyl-sepharose. the high specificity of interaction between the thiamin-binding protein and the riboflavin-binding protein of the egg white, with a protein/protein molar ratio of 1.0, led to the development of an alternative procedure that used the riboflavin-binding protein immobilized on cnbr-activated sepharose as the affinity matrix. the thiamin ... | 1979 | 109083 |
| determination of enzyme activities with the enzyme thermistor unit. | | 1979 | 109314 |
| biochemical changes in avian tissues during infection. | major sources of error in studies of diet--infectious disease interactions relate to failure 1) to define the stage of a disease cycle; and 2) to determine the extent of disease involvement at time of sampling. the former can be determined from clinical and biochemical observations from time of inoculation to recovery or mortality; the latter can be calculated from indexes obtained from histological preparations, changes in body temperatures, and other clinical symptoms, including weight loss an ... | 1979 | 109321 |
| genetic control of resistance to marek's disease. | various md-resistant and md-susceptibel lines of chickens were challenged with the rpl-1 cell line, an md tumor cell line which is capable of growth both in vivo and invitro. birds which possessed the b21 allele, an allele shown to be associated with md resistance, were also resistant to the growth of the rpl-1 tumor. lines of chickens which possessed b alleles associated with susceptibility to md were also very susceptible to the growth of the rpl-1 tumour. the growth of rpl-1 cells can therefo ... | 1978 | 109390 |
| fibronectin mediates attachment of chicken myoblasts to a gelatin-coated substratum. | | 1979 | 109435 |
| regulation of the metabolism of 25-hydroxyvitamin d3 in primary cultures of chick kidney cells. | a primary chick kidney cell culture is described, capable of forming 1,25-dihydroxyvitamin d3 [1,25(oh)2d3], 24,25-dihydroxyvitamin d3 [24,25(oh)2d3], and 1,24,25-trihydroxyvitamin d3 [1,24,25(oh)3d3] over several days. the apparent km values were 0.125 microm for the 1-hydroxylase and 2.1 microm for the 24-hydroxylase. exogenous 1,25(oh)2d3 decreased 1-hydroxylase and increased 24-hydroxylase within 4 h. 24,25(oh)2d3 produced similar effects, but only in the absence of fetal calf serum. r and s ... | 1979 | 109470 |
| an allotypic marker on chicken immunoglobulin light chains. | the first chicken immunoglobulin light (l) chain allotypic specificity (l-1.1) to be described that was present on igm, 7s ig, fab, and l chains was detected by radioimmunoassay. the gene controlling the expression of l-1.1 is inherited in a simple mendelian fashion at an autosomal locus and is unlinked to a constant region heavy chain locus, four blood group loci and three loci determining lymphocyte cell surface alloantigens. | 1979 | 109514 |
| the effect of metal complex of thyrotropin-releasing hormone on locomotor activity of neonatal chicken. | neonatal chickens were injected intraventricularly with ni(ii), pd(ii), cu(ii) or zn(ii) complex of trh and the potencies of stimulating locomotor activity were compared with that of trh, ni(ii)-trh was more potent than the ligand while pd(ii)-trh was inert. cu(ii)- and zn(ii)-trh induced the response to the same extent of the ligand. these results indicate that the action of trh in the cns resulting in the locomotor hyperactivity is dependent on the tertiary conformation of molecule which is mo ... | 1979 | 109864 |