Publications

morphology of freeze-etched treponema refringens (nichols).	the freeze-etch technique was used to study the morphology of treponema refringens (nichols). there is a single band of cytoplasmic fibrils which follows a path in the form of a right-handed helix with a periodicity of 1500 nm around the body of the treponeme just below the cytoplasmic membrane. there are two major fracture planes, one located in the interior of the outer envelope and the second in the interior of the cytoplasmic membrane. the "blebs" or "surface protuberances", which are quite ...	1978	100069
the diet and feeding behaviour of cercopithecus aethiops tantalus.	the feeding behaviour of representative groups of tantalus monkeys (cercopithecus aethiops tantalus) was observed during 1974-1975 in three habitats in cameroon. observations took place during the wet and dry seasons in sahelian savannah, guinea savannah and farmed forest. the tantalus monkeys were similar to other races of c.aethiops that have been studied in that they were omnivorous and lacked any narrow specialisations of either diet or feeding techniques. the dietary range was similar in al ...	1978	101428
purification and characterization of allergens from parietaria officinalis pollen.		1978	101439
cyanobacterial phycobilisomes. characterization of the phycobilisomes of synechococcus sp. 6301.	a procedure is described for the preparation of stable phycobilisomes from the unicellular cyanobacterium synechococcus sp. 6301 (also known as anacystis nidulans). excitation of the phycocyanin in these particles at 580 nm leads to maximum fluorescence emission, from allophycocyanin and allophycocyanin b, at 673 nm. electron microscopy shows that the phycobilisomes are clusters of rods. the rods are made up of stacks of discs which exhibit the dimensions of short stacks made up primarily of phy ...	1978	101538
clinical studies on pipemidic acid.		1978	101691
l-form of pseudomonas aeruginosa. 1. an effective method for the production of stable l-forms.		1978	101700
[carbon metabolism in methylotrophic bacteria isolated from activated sludge].		1978	101747
[management of patients with pseudomonas aeruginosa infections].		1978	96314
behaviour of solute and particle markers in the stomach of sheep given a concentrate diet.	1. fistulated sheep given a concentrate diet were used to study the behaviour of solute ([51cr]edta) and particle ([103ru]phenanthroline) markers in the stomach under conditions of continuous feeding. 2. an injection of a mixed dose of [51cr]edta and [103ru]phenanthroline was given into the rumen and the time course of marker concentrations in the rumen and the abomasum was recorded. the curves were analysed on the assumption that the stomach of the sheep could be represented as two mixing compa ...	1978	96850
[antimicrobial activities of two strains of streptomyces albus isolated from african soils].	the antibiotic activity of these two strains of s. albus is facilitated by culture on slices of potatoes. streptomyces extracts show an antibiotic activity against gram-positive and gram-negative bacteria and an antifongic activity aginst nearly all aspergillus. these antimicrobial effects bring hope of a utilization against some mycotoxin pollution, or mold attacks.	1978	96972
[nature of the mutations that determine the ability of bacillus subtilis a-50 to sporulate at high glucose concentrations in the medium].	the ability of bacillus subtilis a-50 to sporulate in the medium containing high glucose concentrations is caused by at least two mutation types: pts mutations and cat (or tgl) mutations, both of them affecting differently the level of alkaline proteinase synthesis. the decrease of the level of enzyme activity in the case of pts mutation (glur3 mutant) occurs at the expense of glucose transport disturbance. the mutation cat (tgl) (mutant glur5) causes the increase in enzyme synthesis at the expe ...	1978	97172
evidence that spo0a mutations are recessive in spo0a-/spo0a+ merodiploid strains of bacillus subtilis.	the spo0a locus contains two types of closely linked mutations that block sporulation at stage 0: spo0a mutations (the most pleiotropic of the stage 0 markers) and spo0c mutations. it was previously thought that spo0a mutations were dominant in merodiploids of bacillus subtilis, whereas spo0c mutations were recessive. we have shown that spo0a mutations were recessive when spo0a-/spo0a+ merodiploids were made in the genetic backgrounds of strains that were resistant to antibiotic produced by the ...	1978	97278
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
synthesis and biological properties of prostaglandin endoperoxides, thromboxanes and prostacyclins.		1978	98074
reactivity of platelets with different collagens: overlook.		1978	262325
in situ embedding method of cells grown in beem capsules for immunoelectron microscopic studies of oncornaviruses.	a technique of in situ embedding of cells grown in beem capsules has been devised for immunoelectron microscopic studies of oncornaviruses. as compared to other immunoelectron microscopic procedures, this technique is less time and reagent-consuming. the quality and specificity of this method were tested on well-characterized mouse mammary tumor virus (type b virus) and murine sarcoma virus (type c virus particles). this method gave good results in labeling of the virus particles with ferritin o ...	1978	203626
presynaptic muscarinic cholinergic receptors.		1978	203868
laryngeal abductor activity during sleep.		1978	202438
vitamin d metabolism.	during the past decade, an explosion of information has become available on the metabolism and function of vitamin d which is of great importance to clinicians in the treatment of metabolic bone disease. we have learned that vitamin d is the precursor of at least one hormone and that this hormone carries out functions in calcium and phosphorus metabolism bringing about mineralization of bone on one hand, and the prevention of hypocalcaemic tetany on the other. it may also function in the prevent ...	1977	203416
infectious murine type-c viruses released from human cancer cells transplated into nude mice.	type-c virus particles were revealed by electron microscope in 6 of 9 tumours of cultured and biopsied human cancers heterotransplanted into nude mice. some tumours in nude mice were explanted for in vitro cultivation. the virus particles were also found in the cultures derived from the virus-positive tumors. they were mostly found extracellularly, but the particles in budding process were also encountered frequently. cytological study and karyotype analysis of the cultured cells proved these vi ...	1977	193756
colloidal iron hydroxide-binding to the surfaces of chick embryo fibroblasts transformed by wild-type and a temperature-sensitive mutant of rous sarcoma virus.	the densities of colloidal iron hydroxide (cih) particles binding to the surfaces of chick embryo fibroblasts were determined before and after transformation with wild type rous sarcoma virus and a temperature sensitive (ts) mutant of this virus. on the basis of in vitro behavior, cells transformed by the ts virus manifest a malignant phenotype at 36 degrees c (permissive temperature) and appear normal at 41 degrees c (non-permissive temperature). at the permissive temperatures there is a signif ...	1977	193866
analogies and differences between reserpine pgo wave discharges and oculomotor phasic activity during paradoxical sleep in the cat.	in the present study the analogies and differences between phasic pgo activity of parodoxical sleep and the reserpine induced pgo waves were investigated. the oculomotor phasic activities in chronic cats were studied. it appeared that the intrinsic organisation of latencies and the appearance of phasic waves in the four structures studied were common to both experimental situations. however the sequential patterns of discharges were different in ps and under reserpine treatment.	1977	195316
the involvement of cyclic amp-dependent protein kinase(s) in the induction of ornithine decarboxylase in the regenerating rat liver and in the adrenal gland after unilateral adrenalectomy.		1977	195633
an investigation of the homology of guanylate kinase isozymes in mammals and further evidence for multiple guk gene loci.	guanylate kinase in the red cells of 63 different mammalian species was studied by electrophoresis and multiple molecular forms of the enzyme were found in all species. two species were investigated in more detail. using molecular weight estimates as a criterion of homology, the fallow deer and the chinese hamster were found to have isozymes that corresponded to isozyme e, f, and g of man. variation in the guanylate kinase isozymes was detected in a small population of orangutans. results sugges ...	1977	201245
electron microscopic studies on equine infectious anemia virus (eiav). brief report.	morphological studies of eiav reveal knobs on the surface of the particles, conically and tubularly shaped cores, budding particles with dense crescents directly underlying the plasma membrane, and distinct intracytoplasmic structures in infected cells.	1977	202230
the influence of crude cottonseed oil in the feed on the blood and egg yolk lipoproteins of laying hens.	lipovitellin, very low density lipoproteins (vldl), low density lipoproteins (ldl), high density lipoproteins (hdl), and proteins of d greater than 1.20 were isolated from blood plasma and egg yolks obtained from hens fed a normal diet or one containing 2.5% of crude cottonseed oil. the amounts and compositions of each fraction were determined. hen blood plasma and egg yolk vldl and ldl obtained from hens fed a normal diet contained similar levels of lipid, and the fatty acid compositions of tho ...	1977	203909
investigations of the 131i accumulation in the white male rats thyroid gland during chronic parathion intoxication.		1977	98413
ecophylaxis: preventive treatment with gentamicin of rabbit lincomycin-associated diarrhea.	in rabbits the oral or parenteral administration of lincomycin result in a severe and usually fatal form of diarrhea. the rabbits treated simultaneously with lincomycin and gentamicin do not present any sign of disease and behave exactly, therefore, as the control subjects. the same occurs in subjects treated with gentamicin alone. in all the subjects which died with diarrhea there was a marked alteration of the intestinal bacterial flora. among the aerobic bacteria there was an overgrowth of co ...	1977	350739
[radioprotective action of aet and mexamine on pentose cycle dehydrogenases].		1977	272004
mitochondrial biogenesis: inhibitors of mitochondrial protein synthesis.	the effects of erythromycin, chloramphenicol, cycloheximide, pyrimethamine, chromate, cadmium, lead, nickel, 4-nitro-quinoline-1-oxide and thioacetamide on yeast and human cells were studied. inhibition of the synthesis of mitochondrial proteins resulted in the loss of cytochromes as well as in morphological changes in the cellular membranes and mitotic arrest. the data are discussed.	1977	404520
the detection of antibodies in human and animal filariases by counterimmunoelectrophoresis with dirofilaria immitis antigens.	counterimmunoelectrophoresis revealed the presence of precipitin antibody in all of 6 dogs and the 1 cat infected with dirofilaria immitis and in the serum of 17 of 24 individuals living in a setting of hyperendemic subperiodic bancroftian filariasis. antigens used in the test were prepared from microfilariae and adult male d. immitis. some humans and animals had antibodies to both antigens while others had antibodies against microfilariae or adult worms only. the presence of soluble circulating ...	1976	1262695
attenuated, streptomycin-dependent salmonella typhi oral vaccine: potential deleterious effects of lyophilization.	four studies were done with streptomycin-dependent salmonella typhi as an oral, attenuated vaccine. studies 1 and 3 employed freshly harvested vaccine, whereas studies 2 and 4 involved lyophilized vaccine. five to eight doses (3 x 10(10)-10(11) organisms/dose) were given; oral streptomycin (1.0 g) was administered concomitantly in studies 2 and 3, with only two of the doses of vaccine in study 1, and was not given in study 4. no adverse reactions were encountered in 179 vaccinated men, and 94% o ...	1976	1262709
isolation of mycoplasmas from the respiratory tract of horses in australia.	mycoplasmas were isolated from two of 43 nasal swabs taken from live horses, and from one of 28 tracheal swabs taken from slaughtered horses. the slaughtered horse that yielded mycoplasmas had no gross pathological changes in the respiratory tract, but the nasal isolations were made from horses with rhinitis. the three mycoplasmas could be distinguished by cultural characteristics, and probably they represent three different species.	1976	1265985
studies on in vitro carcinogenesis. i. autoradiographic and biochemical study on the incorporation of labelled methylcholantrene into mouse embryonic cells.	the incorporation of radioactive labelled methylcholanthrene into cba/t6t6 mouse embryonic fibroblast cultures was studied by using light and electronmicroscopic autoradiographic and also liquid scintillation counting techniques. during 24 hrs treatment time at the applied methylcholanthrene concentrations (0.01-2.5 mug/ml) the proportion of cells labelled with 3h-methylcholanthrene and the number of grains above the cells showed a relationship with the duration of treatment and also with the do ...	1976	130740
[influence of microflora on the metabolism of l-threonine at the level of the rat digestive tract].	intestinal tissues are found to incorporate l threonine 14cu at faster rate in the absence of microflora. most of the radioactivity of the digestive contents occurs in the tca soluble compounds, except in the coecum and large intestine of the conventional rats where the microflora synthetized its own proteins from the labelled digestive material. free threonine is the main labelled soluble compound in the conventional rats digestive contents. in the other hand, in the germfree rats digestive con ...	1976	134804
[synchronous electric activity with inspiration in the vastus lateralis muscle of the anesthesied dog breathing spontaneously].	in the dog, under chloralose or pentobarbitone anesthesia and breathing spontaneously, a muscular electrical activity of low voltage synchronous with respiration was observed in m. vastus lateralis. the mean maximum amplitude of this activity is inversely linked with respiratory rate. when the respiratory frequency is equal or exceeds 25 cycles per minute this activity disappears. such a phenomenon seems to be related to the activity of the respiratory centre.	1976	134813
lupus nephritis: natural history and therapy.		1976	175347
[role of alimentary hyperglycemia in the pathogenesis of several disorders of lipid metabolism].	alimentary hyperglycemia in rabbits was found to be accompanied by increase in cholesterol level, as well as in the amount of triglycerides in the blood sera. progressive increase in the serum concentration of pre-beta lipoproteids (serving as endogenous tryglyceride carrier) has also been demonstrated. a short-term feeding with cholesterol against the background of hyperglycemia in rabbits appeared to result in early marked atherosclerotic changes, as compared to those in control group of normo ...	1976	182301
the role of lipids in the serum lipoproteins as inhibitors of hemagglutination by japanese encephalitis virus.		1976	1011379
relationship between antiinflamatory and antiproteolytic properties of substituted oxothiazolylacetic acids.		1976	1026952
alteration of colony-stimulating factor output, endotoxemia, and granulopoiesis in cyclic neutropenia.	cellular and humoral factors involved in the regulation of granulopoiesis were evaluated in two patients with cyclic neutropenia by utilizing the agar-gel marrow culture technique to serially study marrow granulocytic colony-forming capacity (cfc) and the urinary output of colony-stimulating factor (csf). csf output varied inversely with peripheral neutrophil counts and directly with monocyte counts and evidence for infection (endotoxemia and/or staphylococcal abscesses). following autologous in ...	1976	1087533
avian leukosis viruses of different subgroups and types isolated after passage of rous sarcoma virus-rous-associated virus-0 in cells from different ring-necked pheasant embryos.	avian leukosis viruses of subgroups a and f (rav-a and rav-f) arose at a low rate after passage of rous sarcoma virus-rous-associated virus-0, which is subgroup e, in cells from ring-necked pheasant embryos. in cells of two embryos, all of the viruses isolated after virus passage were rav-f. however, in cells of a third embryo, both rav-a and rav-f were isolated. in addition, there sometimes were type-specific differences among the different isolates of rav-a and rav-f from the cells of single e ...	1976	183006
[herpesvirus-induced autoantibodies in animals (author's transl)].	after immunization with autologous testicle cells which were infected with herpes virus hominis type 1 or 2, histologically homogeneous, eosinophilie pas-positive substances could be detected in five out of six rabbits, mainly within the interstitium. these substances have been found by immunofluorescence microscopic techniques to be antibodies against testicle tissue.	1976	183633
letter: human pulmonary dirofilariasis: entry method of infective larvae.		1975	238798
resistance and tolerance of myocardium in ischemia: experimental results.	the resistance of the normal myocardium to ischemia can be determined by the metabolic and electric investigations, and particularly by the determination of the intra-myocardial potentials. the aspect of v.f. and the metabolic changes allow aetiologic deductions on the v.f. and are helpful for the treatment.	1975	239001
action of the benzodiazepines on the cholinergic system.		1975	242203
rejoining of radiation-induced single-strand breaks in deoxyribonucleic acid of escherichia coli: effect of phenethyl alcohol.	single-strand breaks in deoxyribonucleic acid of escherichia coli b/r cells exposed to 20 krads of gamma radiation could be rejoined by incubation of irradiated cells in growth medium. in the presence of 0.25% phenethyl alcohol, this repair was completely inhibited although deoxyribonucleic acid and protein syntheses were suppressed only partially.	1975	1090577
macrophage-lymphocyte clustering in rheumatoid arthritis.	the cells in synovial fluid from patients with rheumatoid arthritis contain a small percentage of macrophages. such macrophages were isolated and cultured alone and with homologous and heterologous lymphocytes for 24 hours, in an attempt to identify possible contact between living lymphocytes and macrophages. such contact was found, with clustering of lymphocytes around macrophages, and was particularly well shown by scanning electron microscopy.	1975	1092274
effects of bretylium on rat cardiac muscle: the electrophysiological effects and its uptake and binding in normal and immunosympathectomized rat hearts.	bretylium produced electrophysiological effects on both rat atrium and ventricle in vitro at concentrations ranging from 2 times 10- minus 5 to 10- minus three m. those effects included lengthening of action potential duration and effective refractory period; increasing effective refractory period/action potential duration; decreasing dv/dt of phase zero of the action potential and suppressing the action potential amplitude and overshoot. these effects, which could serve as a basis for the antia ...	1975	1133764
proceedings: cell-wall composition of aerobic cutaneous "diphtherios" organisms.		1975	1142405
cyanogen condensations as a route to 3-amino-2-imino-1,3-benzothiazin-4-ones with cns depressant potential.	seven new 3-amino-2-imino-1,3-benzothiazin-4-ones, prepared from the condensation of cyanogen and 2-mercaptobenzhydrazides, were evaluated in a neuropharmacological mouse profile. cns depression was observed in several members of the class.	1975	1151723
proceedings: the effect of warming and cooling the hypothalamus, or intracarotid injections of cold saline, on thermoregulatory behaviour in sheep.		1975	1151866
hl-a w27 in psoriatic arthropathy.	forty subjects with psoriatic arthritis (pa) underwent hl-a tissue typing. hl-a w27 was significantly increased in psoriatic spondylitis (35%), whereas statistical significance was not reached in patients with peripheral arthritis alone, although w27 was present in a frequency greater than in controls. psoriatic spondylitis (often asymptomatic) occurred in 57% (23 of 40) of our pa patients. of interest, psoriatic spondylitis was more often w27 negative than w27 positive; nevertheless, w27-positi ...	1975	1169069
comparative in vivo distribution of opiate agonists and antagonists by means of double isotope techniques.		1975	1196002
common morphogenetic aspects of various organotypic microvascular patterns.		1975	1214601
[salmonellosis carrier state].		1975	1214656
[cortical organisation and the experience: electrophysiological properties of cells of the visual cortex and the visual experience].		1975	1230912
[a cytophotometric and karyometric study of the granular cells of the rat brain. i. granular cells of the cochlear complex and cerebellum].	two cell types can be distinguished in granular cells of the chochlear complex of the rat by the form of their processes and the structure of the nuclear chromatin. it is shown cytophotometrically that the majority of the granular cells of the cochlear complex and in the cerebellar cortex are diploid. however, some cells contain dna amount close to tetraploid. some correlation between the size of the nucleus and its dna amount was discovered both in the cerebellar cortex and in the cochlear comp ...	1975	1231101
[characteristics of erythrocyte membrane permeability for potassium ions in rats with familial spontaneous hypertension].	the kinetics of 42k influx into the erythrocytes was studied in spontaneously hypertensive rats (shr) during the prehypertensive and early hypertensive stages (aged 10 weeks), as well as in wistar and sprague-dawley rats of the same age. the shr displayed a significantly slower enhancement of the activity in the erythrocytes than in the wistar and sprageu-dawley rats, which indecates a higher level of passive permeability of the erythrocytic membrane for potassium ions and an enhanced turnover o ...	1975	1235139
some biological properties of human chorionic follicle stimulating hormone.	the biological properties of human chorionic fsh (hcfsh) for rat ovaries were investigated. highly purified hcfsh had similar response to the ovarian augmentation test as bovine fsh and significantly enhanced 3h-thymidine uptake by granulosa cells and theca cells in the ovary of hypophysectomized rat. in contrast, highly purified hcg little responded to the ovarian augmentation test and had no effect on 3h-thymidine uptake by the ovary. these results indicate that hcfsh may promote the follicula ...	1975	182476
proceedings: attempts to infect inbred strains of rats and mice with entamoeba histolytica.		1975	175529
cell-mediated immune response in mice treated with steroidal contraceptives.	the splenomegaly assay (simonsen, 1962) was standardized using different strains of rats and mice. male wistar rat (donor)-female swiss mouse (host) was found to be the suitable combination that could be employed in subsequent experiments to study the potential of contraceptive steroids to alter cmir. the index of splenomegaly appeared to increase in case of mice treated with combination oral contraceptives (ovulen, ovral or enovid). the differences observed, however, neared significance only in ...	1975	55327
progesterone-binding proteins from endometrium and myometrium of sheep uterus: a comparative study.	the binding of tritiated proesterone to the cytoplasmic progestogen receptors from oestrogen-primed sheep endometrium and myometrium has been investigated. the binding characteristics of the progesterone receptors from both sources were determined in the supernatant fractions obtained after high speed centrifugation of the myometrial and endometrial homogenates. high affinity binding proteins with identical association constants for progesterone (1 times 10-9 m-1) were detected in both endometri ...	1975	164095
organ cultures of rat and hamster colon.	human fibrin foam as a matrix for three-dimensional organ cultures was successfully employed for the cultivation of newborn rat and hamster colon tissue. colonic tissue was maintained under different oxygen atmospheres and with various synthetic media. explants of rat and hamster colon, maintained in leibovitz's l-15 medium buffered with hepes in the presence of 5% co2 and air, retained their normal columnar epithelial architecture for 24 days in culture. outgrowth of epithelial cells from colon ...	1975	165141
synthesis of superhelical simian virus 40 deoxyribonucleic acid in cell lysates*.	in vivo-labeled sv40 replicating dna molecules can be converted into covalently closed superhelical sv40 dna (sv40(i) using a lysate of sv40-infected monkey cells containing intact nuclei. replication in vitro occurred at one-third the in vivo rate for 30 min at 30 degrees. after 1 hour of incubation, about 54% of the replicating molecules had been converted to sv40(i), 5% to nicked, circular molecules (sv40(ii), 5% to covalently closed dimers; the remainder failed to complete replication altho ...	1975	165197
[some aspects of the histoenzymology of the hypothalamo-neurohypophyseal neurosecretory system].		1975	167367
the fine structure of the cysticercoid of hymenolepis diminuta. iii. the scolex.	transmission electron microscopy of the scolex of the 8-day-old hymenolepis diminuta cysticercoid demonstrates its resemblance to the scolex of the adult. a syncytial tegument composed of external and internal layers is connected by cytoplasmic extensions. fully developed microtriches are present. furthermore, a basement membrane, muscle layers, and medullary region containing flame cells, nerve tissue, and other cell bodies are observed. of particular interest is the presence of discrete sensor ...	1975	167533
inhalation anesthetics and cytochrome p-450-dependent reactions in rat liver microsomes.	the activities of liver microsomal enzymes were studied in preparations from unanesthetized rats and rats anesthetized for one hour with nitrous oxide, diethyl ether, halothane or chloroform. most of the enzymes studied were cytochrome p-450-dependent oxygenases that hydroxylate endogenous substrates. the other microsomal enzymes, assayed for comparison, included the cytochrome p-450-dependent aminopyrine demethylase, glucose-6-phosphatase, a dehydrogenase, and nadph-cytochrome p-450 reductase. ...	1975	167617
synthetic position 5 analogs of adrenocorticotropin fragments and their in vitro lipolytic activity.	twenty-three analogs of the acth-(4-10)-heptapeptide sequence, which forms the "active core" of adrenocorticotropin (acth) and related hormones, have been synthesized by the solid-phase method. these analogs all contain structural modifications at or near the 5-glutamic acid residue of acth. the peptides were purified to electrophoretic and chromatographic homogeneity. the peptides were assayed for lipolytic activity in an isolated cell system derived from rabbit adipose tissue. in this system, ...	1975	167812
bile salt alteration of ion transport across jejunal mucosa.	the effect of conjugated dihydroxy and trihydroxy bile salts on electrolyte transport across isolated rabbit jejunal mucosa was studied. both taurochenodeoxycholic acid and taurocholic acid increased the short-circuit current (isc) in bicarbonate-ringer solution but not in a bicarbonate-free, chloride-free solution. taurochenodeoxycholic acid was significantly more effective than taurocholic acid in increasing isc. the presence of theophylline prevented the taurochenodeoxycholic acid- and tauroc ...	1975	167840
the effects of hyperlipidemia on lipoprotein metabolism in squirrel monkeys and rabbits.	we studied the metabolism of different classes of lipoprotein in squirrel monkeys and rabbits. lipoproteins were labeled in vivo in donor animals with (3h)leucine and (3h)cholesterol. the rate of disappearance from plasma of recipient squirrel monkeys of the protein moiety of the very low density lipoproteins was rapid, that of high density lipoproteins slow, and the rate for low density lipoproteins was intermediate. the fractional turnover of the apoprotein of low density lipoproteins was slig ...	1975	167856
induction of cystathionase in foetal rat liver explants. effects of dexamethasone, n-6, o-2 -dibutyryladenosine 3,5 -monophosphate and glucagon in vitro.	at the 18th day of gestation and thereafter foetal rat liver explants in organ culture showed the competence to respond to dexamethasone by increased cystathionase activity, whereas the ability to respond to dibutyryl cyclic amp or glucagon became evident at a later developmental stage (during the last 2 days prior to term). simultaneous incubation with cycloheximide inhibited the stimulatory effect of these agents on foetal rat liver cystathionase activity in vitro. dexamethasone and glucagon w ...	1975	167857
the effect of a myelin apoprotein on lipid structure: a spin probe study.	spin probes, stable free radical derivatives of stearic acid and cholestanone, were used to observe the effects of the "folch-lees" protein isolated from the white matter of bovine brain on the organization and motion of lipid molecules. the incorporation of the organic solvent soluble form of this protein decreased the tendency of a variety of lipid molecules with zero, positive or negative net charges to arrange themselves close to the normal to the lipid bilayer. the aqueous form of the prote ...	1975	167917
human neuroblastoma in nude mice.	for establishment of a reproducible model of human neuroblastoma, 2 to 5 million of established neuroblastoma cell lines (sk-n-sh, sk-n-mc) were injected s.c. or i.p. into 20 nu/nu mice of a predominantly swiss back-ground. following latency periods of 8 to 21 days, tumors developed at the injection site and grew to 4-ml volumes within 3 weeks. histologically, the tumors resembled the original metastases from which the tumors were derived; however, the sk-n-sh appeared to have evidence of morpho ...	1975	167965
oxidation of succinate in heart, brain, and kidney mitochondria in hypobaria and hypoxia.	exposure of rats to hypobaric stress for periods of up to 36 h caused a consistent change in the succinate-nt reductase activity of the heart mitochondria whereas there was no significant change in the activities of either succinate dehydrogenase and succinate-nt reductase of the brain and the kidney. mitochondrial succinate dehydrogenase of the heart, the brain and the kidney was activated 2- to 7-fold with the substrate and malonate. the activations obtained with oxalate, citrate and dinitroph ...	1975	168066
nuclear proteins of rat liver and of an aminoazo-dye-induced hepatoma.	nuclear proteins of rat liver and rat ascites hepatoma were fractionated by extraction in solutions of different salt concentration and analyzed by sodium dodecyl sulfate polyacrylamide gel electrophoresis. the difference between the electrophorograms of the different fractions of nuclear proteins isolated from liver and from hepatoma was found in the bands which have the same electrophoretic mobility as the main proteins of informofers and are extracted from nuclei at salt concentrations which ...	1975	168162
functional and structural changes in isolated rabbit liver mitochondria induced by fluorodichloromethane.	fluorodichloromethane caused changes in substrate respiration rates and also in adenosine diphosphate (adp)-stimulated rates of oxidation of both succinate and glutamate. active swelling of mitochondria also occurred, but only in the presence of magnesium ion. adp/o ratios were not significantly affected by the fluorocarbon. state iv respiration was stimulated, and the respiratory control ratio was linearly reduced with increased levels of fluorocarbon when succinate was used as substrate. gluta ...	1975	168346
[a spectrophotometric method for the determination of serum cholinesterase variants with succinyl choline as substrate (author's transl)].	a simple and rapid method for the estimation of the hydrolysis of succinyl choline by serum cholinesterase variants is described. succinyl choline, as substrate for the enzyme assay, has many advantages over other substrates (acetyl choline, benzoyl choline and butyryl choline) which have no clinical application. choline, the hydrolytic product of succinyl choline, is oxidized to betaine aldehyde by choline oxidase (ec 1.1.99.1), a rat liver mitochondrial preparation; this is coupled to the redu ...	1975	168694
characterization of cloned evolutionary variants of simian virus 40.		1975	169050
structural aspects of the membrane of the endoplasmic reticulum.		1975	173395
[proceedings: urinary excretion of cyclic amp during expansion in rats].		1975	175173
a comparison between the free grafting of sliced and intact muscles in the rat-1.	transverse slicing is a new technique whereby a mammalian muscle can be freely grafted with success. this method eliminates contamination of the early graft by surviving muscle fibres and allows one to measure the development of contractile properties on a uniform population of regenerating muscle fibres.?ioauthor	1975	124664
immunofluorescent localization of glycogenolytic and glycolytic enzyme proteins and of malate dehydrogenase isozymes in cross-striated skeletal muscle and heart of the rabbit.	specific antisera against glycogen phosphorylase, phosphofructokinase, aldolase, glyceraldehyde-phosphate dehydrogenase, enolase, lactate dehydrogenase, cytosolic and mitochondrial malate dehydrogenase from rabbit muscle were obtained from sheep. the gamma-globulins were used for indirect immunofluorescent localization of the respective enzymes in rabbit skeletal muscle and heart. in stretched skeletal muscle a cross-striation like distribution was observed for all enzymes studied. in the case o ...	1975	124716
[influence of culture on evolution of biological structures in human groups].		1975	126716
tightness and orientation of vesicles from guinea-pig kidney estimated from reactions of adenosine triphosphatase dependent on sodium and potassium ions.	in order to study the "sidedness" of the ligands of the na+, k+-atpase in the phosphorylation from [32p]atp, tight vesicles were prepared from guinea pig kidney and partially purified by a two-stage sucrose and ficoll gradient centrifugation procedure. these vesicles were derived presumably from plasma membrane fragments resealed after the initial disruption of the cells during homogenization. tightness of the vesicles was estimated according to activation by the nonionic detergent, triton x-100 ...	1975	126864
direct and utilization of metabolic energy for transport processes within proximal convolution.		1975	127689
editorial: subunits of myosin. relations to atpase activity and mechanical function of muscle.	under certain conditions the specific atpase activity of myosin of a given muscle can be altered. the cause of this alteration can only lie in the myosin molecule itself. to produce an enzymatic activity of myosin, an interaction between their light and heavy chains is necessary. however, the specific activity appears to be determined mainly by light chains. hence, one ought also to look for a basis of the changed activity in changes of the subunits of myosin. there are strong indications that t ...	1975	128346
[organization of the veterinary service of a dairy complex].		1975	129913
[prevention of helminthiasis in sheep in kazakhstan].		1975	129934
[camera-cinematography of the heart (author's transl)].	by "camera-cinematography" of the heart, we mean an isotope method which permits detailed observation of cardiac mechanics without the use of a catheter. all that is necessary is an intravenous injection of 10 to 15 mci 99mtc human serum albumen followed after ten minutes by a five to ten minute period of observation with a scintilation camera. at this time the isotope has become distributed in the blood. variations in the precordial impulses correspond with intra-cardiac changes of blood volume ...	1975	130292
newly synthesized mammalian cell dna. affinity to nitrocellulose and rate of chain growth.		1974	4425437
promoting effect of bile acids on colon carcinogenesis after intrarectal instillation of n-methyl-n'-nitro-n-nitrosoguanidine in rats.		1974	4427390
[space-time properties of excitation and inhibition and wave processes in the receptive fields of the cat external geniculate body].		1974	4441509
modification of a new pharmacological technique for evaluation of anticholinergic drugs.		1974	4452763
[anabolic activity of 9, 10-dehydro-19-nortestosterone derivatives].		1974	4453568
[prasites identified in cattle, sheep, pigs and equines in the laboratory of parasitic diseases of the school of veterinary medicine, university austral of chile, 1963-1973 (author's transl)].		1974	4455273
anion effects on pyruvate kinase.	rabbit muscle pyruvate kinase is shown not to be activated by several anions (acetate, chloride, lactate, nitrate and sulphate) when tested as their tetramethylammonium salts. this contradicts the conclusions of focant & watts (1973).	1974	4464855
[pathological studies of pyelonephritis--with special reference to bacterial antigens].		1974	4478691
[pathological studies of pyelonephritis--with special reference to bacterial antigens].		1974	4478691
the involvement of extracellular enzymes in the metabolism of bdellovibrio.		1974	4600233