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comparison of a new microcrystalline dicoumarol preparation with warfarin under routine treatment conditions.1 to determine whether two different oral anticoagulants show difference under routine clinical conditions, 71 patients were randomized to treatment with apekumarol, a microcrystalline dicoumarol preparation, and 72 patients to treatment with warfarin. 2 during the inpatient phase of treatment both drug groups remained for about 94% of their treatment time within prothrombin value limits of 5-25% (simplastin a). no statistically significant difference was found between the drugs. 3 while under o ...200195337
antigenic similarity between squamous cell carcinoma of horn (horn cancer) and normal bovine foetal tissues.normal bovine foetal (liver and skin) and horn cancer tissue antigens were examined using double diffusion agar gel precipitation and immuno-electrophoretic tests to detect any cross reactivity among them. rabbit horn cancer antisera absorbed with normal bovine liver, skin and horn core epithelium antigens, when tested with foetal skin and liver (4 to 6 months of gestation), revealed the presence of 2 foetal antigens in horn cancer. immuno-chemically 2 of the horn cancer antigens were found to b ...197995358
[the effect of bile acids on the cholesterol metabolism of the liver]. 197995366
[diet therapy in chronic-inflammatory diseases of the small and large intestine]. 200195378
[choroidal neovessels and ischemia]. 200195396
[concealed a-v functional extrasystole]. 200195404
human t cell subpopulations as defined by fc receptors. 197995424
regulation of the mitochondrial anabolism at low concentrations of thyroid hormones and by some of their structural analogues.the authors demonstrate that the in vitro stimulation of mitochondrial rna synthesis produced by thyroid hormones takes place also at physiological levels, equal to those held in the liver cells of experimental animals. two groups of male rats have been used: normal control animals (n) and animals surgically thyroidectomized on the 25th day of life (t). the animals were fed and kept in standard conditions and killed on the 85th day of life. the purification of mitochondrial samples and the deter ...197995433
[antitumor activity and preclinical pharmacologic evaluation of pingyangmycin (author's transl)]. 197995444
anorectal cancer: electrocoagulation and irradiation treatment. 200195464
[surgery of hepatic hydatic cyst. per-operative complications. possibility of anaphylactic etiology (author's transl)].among fifty cases hepatic hydatid cysts, we have observed four serious complications during operation. these complications appeared at the time of the puncture of the cysts with a severe shock in three cases. anaphylactic etiology can be suspected but not proved without specific tests. because the severity of these accidents (one death), anesthesiologist must be aware of the possibility of such complications: it is important to recognize anaphylactic reactions during surgical procedure to instit ...200195469
[changes in physicochemical parameters and coagulation factors in hemodilution with dextran of molecular weight 60,000].in 18 subjects undergoing aorto-bifemoral by-pass, pre-operative isovalaemic hemodilution was carried out (using a dextran of molecular weight 60,000) at the same time as venous section of a mean value of 1087 ml reducing the hematocrit to 0.30. the following were studied before, immediately after and 24 hours after hemodilution: blood viscosity (at variable shearing rates), oncotic pressure, sedimentation rate, clotting factors, plasma electrolytes. these results showed that at the end of hemod ...200195471
on the occurrence and prognosis of aphasia in patients with cerebral infarction.of 338 consecutive patients with cerebral infarction, aphasia in the acute phase was found in 96. of these, 18 had totally recovered from aphasic speech disturbances when leaving the hospital. the patients were examined 2-8, in average 6 years after the onset of the illness. 39% of them had died, 27% still suffered from aphasic speech disturbances, while 32% were recovered from aphasia. in addition, disturbances in writing, reading, and/or calculation were observed in more than the half of the s ...200195489
[long-term results of synchronized radiotherapy in inoperable orofacial squamous cell carcinoma]. 200195490
[local radiotherapy and adriblastin chemotherapy in metastatic breast carcinoma]. 200195495
[combination radio and chemotherapy in plasmocytoma. roentgen diagnostic and protein chemistry development prognosis]. 200195496
[determination of immunoglobulins, alpha fetoproteins, haptoglobin and complement components in umbilical cord blood]. 200195497
[myelin].the lipid and protein composition and the metabolic turnover of myelin in the c.n.s., are briefly reported. for a better understanding, it seemed useful to introduce some historical data on the discovery of myelin and to give a morphological description at structural and ultrastructural level.197895501
[a special type of psychic infantilism---disability to manage daily life in coexistence with special talent (author's transl)]. 200195504
[acute mercury poisoning in children (author's transl)]. 200195513
nucleic acids quantitation in polyacrylamide disc gels with a modified double beam spectrophotometer.quantitation of rna and protein bands separated in polyacrylamide disc gel electrophoresis is time consuming and not reliable when performed after staining processes. the best theoretical approach is the use of absorption spectra of the samples. the present paper reports the construction of an efficient and inexpensive adapter to perform direct scanning of 100 mm gels in a unicam sp-800 double beam spectrophotometer. conditions for gel casting and electrophoresis were established for rna. a line ...200195523
protection of primate lung from stored-blood perfusion by peptidase inhibition and target membrane stabilization.microaggregate filtration and separation of the cellular components of stored autologous blood have not changed the functional and morphological damage in primate lungs from stored-blood perfusion. pharmacologic prevention of these "shock lung" changes was attempted with trasylol and with methylprednisolone pretreatment. in an in situ primate lung perfusion model, fresh and stored blood was perfused in untreated baboons and in groups of seven animals each pretreated with trasylol or methylpredni ...200195551
field trials of slow-release formulations of chlorpyrifos and malathion for the control of chagas's disease vectors. 197995561
augmentation of the in vitro humoral immune response by pharmacologic agents. i: an explanation for the differential enhancement of humoral immunity via agents that elevate camp.agents that elevate intracellular concentrations of camp in cultured spleen cells can augment the in vitro 19s humoral immune response to srbc. dbcamp and 8brcamp were more effective than mix, ct, pge1, or iso in producing the enhanced pfc response, when they were present only during an early stage of immune induction. the thesis is presented that the differential ability of these agents to augment humoral immunity results from their relative ability to maintain elevated concentrations of intrac ...200195570
effect of neurotensin, substance p and morphine sulfate on the secretion of prolactin and growth hormone in the rat.neurotensin (nt), substance p (sp) and morphine sulfate (ms) elevate plasma prolactin and growth hormone levels in both normal or estrogen-progesterone pretreated male rats. by contrast, steroid priming is required for trf to exhibit prl-releasing activity. naloxone, an opiate receptor blocker, reverses the stimulatory effect of ms only. diphenhydramine, a histamine antagonist, inhibits the response to nt, sp and ms without affecting the response to trf. these results suggest the involvement of ...197795701
group f, a new vibrio? 197795779
cadmium and prostatic carcinoma. 199995781
[immunocytochemical location of the centrosphere of human cancer cells using natural rabbit antibodies].sera of 40 normal nonimmunized rabbits were eprouved by immunoperoxidase on cultural human cells. four sera contain centrosphere-reactive antibodies and for the strongest serum the centrospheres were still stained with the 1/600 dilution. this last serum visualized the centrospheres within the height human cell lines eprouved, whatever the phase of the mitotic cycle. the staining was not inhibited after serum absorption by tubulin.197895892
[inhibition by the enterotoxin of vibrio cholerase of meiosis reinitiation of the xenopus laevis oocyte induced in vitro by progesterone].progesterone reinitiates in vitro meiosis in xenopus laevis oocytes. this action of the hormone can be abolished by the exotoxin of vibrio cholerae. the concentration of toxin which inhibits 50% of the progesterone (10 mum) action in about 2.5 pm. binding experiments using 125i labelled toxin demonstrated the existence of high affinity binding sites (kd approximately 0.2 nm) located probably on the surface of the oocytes.197895900
the response of experimental animal tumors to neutron radiation therapy. 197796056
aeg/rdi neutron therapy unit. 200196073
viability and endogenous substrates used during starvation survival of rhodospirillum rubrum.cells of rhodospirillum rubrum were grown photoorganotrophically and chemoorganotrophically and then starved for organic carbon and combined nitrogen under four conditions: anaerobically in the light and dark and aerobically in the light and dark. illumination prolonged viability and suppressed the net degradation of cell material of phototrophically grown cells, but had no effect on chemotrophically grown cells that did not contain bacteriochlorophyll. the half-life survival times of carbohydra ...197896087
biosynthesis of exopolysaccharide by pseudomonas aeruginosa.in batch cultures of pseudomonas aeruginosa, the maximum rate of exopolysaccharide synthesis occurred during exponential growth. in nitrogen-limited continuous culture, the specific rate of exopolysaccharide synthesis increased from 0.27 g g of cell-1 h-1 at a dilution rate (d) of 0.05 h-1 to 0.44 g g of cells h-1 at d=0.1 h-1. the yield of exopolysaccharide on the basis of glucose used was in the range of 56 to 64%. exopolysaccharide was also synthesized in carbon-limited cultures at 0.19 g g o ...197896088
proximal focal femoral deficiency.the term proximal focal femoral deficiency (pffd) is applied to a spectrum of conditions characterized by partial absence and shortening of the proximal femora and thought to result from an early disturbance of growing mesenchyme. the mildest cases, classes a and b, exhibit a relatively normal acetabulum and capital femoral epiphysis, despite the dysplastic shaft. there may be a subtrochanteric varus deformity or a pseudoarthrosis accompanying the shortening of the femoral shaft. at the opposite ...200196119
lower levels of thyrotropin-releasing hormone-degrading activity in human cord and in maternal sera than in the serum of euthyroid, nonpregnant adults.thyrotropin-releasing hormone (trh)-degrading activity was investigated in human cord, maternal, and euthyroid adult sera by measuring (a) the rate of disappearance of trh and (b) the rate of formation of degradation products. the rate of trh degradation in cord and maternal sera was 25-33% of that in euthyroid adult serum. concomitantly, in cord and maternal sera, the rate of formation of proline, a major trh degradation product in serum, was one-quarter to one-third that in euthyroid adult ser ...197896140
cellular changes in the toad urinary bladder in response to metabolic acidosis.the urinary bladder of bufo marinus excretes h+ and nh+4, and the h+ excretion is increased when the animal is placed in metabolic acidosis. the mitochondria-rich (mr) cells mediate the h+ excretion by the bladder. the purpose of this study was to determine if there is a change in mr cells of the bladder during metabolic acidosis. bladders from normal toads and from toads that had been placed in metabolic acidosis were used. the bladders were mounted between plastic chambers and h+ excretion mea ...199996269
intrathecal gentamicin for refractory gram-positive meningitis.the mortality for meningitis due to staphylococcus aureus or listeria monocytogenes remains high, ranging from 32% to 77%. we treated a patient with staphylococcal meningitis refractory to methicillin sodium and oxacillin sodium, and a patient with listeria meningitis refractory to penicillin g potassium and ampicillin sodium; both patients were cured when intrathecal gentamicin sulfate was added to the regimen. the combination of intrathecal gentamicin and a penicillin may be beneficial in refr ...197896281
[influence of chenodeoxycholic acid on the metabolism of cholesterol and bile acids in the course of cholesterol gallstone formation in squirrel monkeys (author's transl)]. 197896290
dietary restrictions early and late: effects on the nephropathy of the nzb x nzw mouse.nzb x nzw f1 mice initiated on calorie restriction at weaning or at 4 to 5 months of age or initiated on moderate protein restriction at weaning, were afforded significant protection from the development of immune nephritis. whereas animals on normal calorie intake demonstrated deposition of immune reactants in glomerular basement membrane-oriented pattern, those on either protein or calorie restriction exhibited mesangial confinement of immunoglobulins and complement. associated with these dive ...197896299
effect of fetal tissue on experimental (7,12-dimethylbenz[a]anthracene) breast cancer in rats. 197896305
v and c parts of immunoglobulin kappa-chain genes are separate in myeloma. 199996352
bordetella pertussis in a partially immunized host: case report. 197896376
spontaneous pneumothorax in labor: case report. 199996378
[diurnal variations in glucose tolerance in normal subjects and changes induced by oral glibenclamide]. 199996388
a limited serological survey of north island cattle for antibody to a number of endemic viruses. 197796390
[therapy of class ii, division 1 malocclusion without extraction of premolars during the mixed dentition period]. 199996393
muscle mass and composition in malnourished infants and children and changes seen after recovery. 199996411
a review: extracellular volume in the brain--the relevance of the chloride space. 197896413
hyperthyroidism in juvenile diabetes mellitus.three cases of hyperthyroidism occurring in juvenile patients with diabetes mellitus are presented. the presence of hyperthyroidism should be suspected in patients with diabetes mellitus when goiters develop and when there is unexplained weight loss, tachycardia, tremors, unexplained increases in insulin requirement, or instability of the diabetes with a tendency toward development of ketosis and/or ketoacidosis.199996415
[gougerot-sjögren syndrome associated with dysimmune adenopathy and mixed cryoglobulinemia]. 199996425
[breathing therapy--ascpects of long-term home treatment of chronic obstructive lung disease (author's transl)]. 199996434
[diagnosis of malignant neoplasms by studying the changes in the concentration of fetal hemoglobin, hemoglobin a2 and carbonic anhydrases b and c. an application of discriminating function].this publication proposes the utilization of an analytical discriminatory method in the diagnosis of malignant neoplasia. the multiple variable technique of analysis is suggested employing the quantification of the hbf, hba2, acb and acc. this has already been demonstrated in a previous study which suffered from quantifiable variations important in neoplastic disease. the confidence of the procedure has been proven when applied to 198 known cases, having classified them adequately 94 per cent of ...199996435
pre-proparathyroid hormone; amino acid sequence, chemical synthesis, and some biological studies of the precursor region.the precursor of bovine proparathyroid hormone was synthesized by translation of parathyroid mrna in a wheat-germ cell-free system. the amino acid sequence of the nh2-terminal extension (the pre sequence) was determined by repetitive edman degradation of the polypeptide labeled with radioactive amino acids (radiosequencing). the pre sequence of pre-proparathyroid hormone is (formula: see text) which is followed by the sequence of proparathyroid hormone. it is significant that 20 of the 25 amino ...197896437
chromosomal locations of mouse immunoglobulin genes.the chromosomal locations of the structural genes coding for the constant portions of mouse heavy (h) and light chain immunoglobulins were studied by molecular hybridization techniques. complementary dna probes containing the constant-region sequences of kappa and lambdai light chain and alpha, gamma2b, and mu heavy chain mrnas were annealed to a large excess of dna from a series of eight mouse-human hybrid cell lines that are deficient for various mouse chromosomes. the lines were scored as pos ...197896442
critical concerns: national health insurance. 199996458
haloperidol and lithium blocking of the mood response to intravenous methylphenidate.the euthymic manic-d-pressive patients with therapeutic plasma lithium levels were each given two i.f. infusions of 30 mg of methylphenidate. the infusions were separated by at least 3 days. before one infusion each patient was given 5 mg of haloperidol i.v. and before the other infusion each was given an identical volume of saline. a psychiatric observer was blind to the nature of the pretreatment and the order of pretreatment was randomized. saline pretreated patients showed marked activation ...199996473
brain and liver aldehyde dehydrogenase activity and voluntary ethanol consumption by rats: relations to strain, sex, and age.voluntary ethanol consumption and brain and liver aldehyde dehydrogenase (aldh) activity were measured in male and female rats of the tryon maze-bright (s1), tryon maze-dull (s3), and wistar strains. the levels of brain aldh measured in the different groups, corresponded well to the levels of ethanol consumption, while differences in liver aldh corresponded well to only the strain differences in ethanol intake. within individual groups, levels of ethanol consumption correlated better with levels ...197896475
development of an endosseous dental implant (iii). 199996476
some response characteristics of co2 electrodes.radiometer carbon dioxide electrodes and probably other electrodes of similar design do not give the same readings, except under certain very limited conditions, when used to measure carbon dioxide concentrations in solution and the gas phase with which the liquid is in equilibrium. blood samples of high p(co2), when introduced into the sample chamber of an electrode at low p(co2), lose co2 to the electrode resulting in a reduction of sample p(co2) and hence, because the sample size is very smal ...199996504
[screening in pediatric practice]. 199996516
hemolysis induced by cefazolin and cephalothin in a patient with penicillin sensitivity.a patient with penicillin sensitivity, who had never received a cephalosporin antibiotic previously, developed anemia and spherocytosis following the administration of cefazolin. hemolysis abated when the drug was discontinued on the fourth day, and recurred on day six when cephalothin therapy was begun. igg and complement components were present on the patient's erythrocytes, and igg antibodies in her serum reacted with normal red blood cells which had been coated with benzylpenicillin, cefazol ...199996555
haplotype designations of various strains of guinea pigs. 197896556
[the effect of proteins from tannery wastes on body proteins in birds].the effect of 7.0% and 3.5% proportion of lime protein, produced according to the patent csp 133.077, in the diet was studied under laboratory conditions, as exerted on the growth rate of japanese quail (coturnix coturnix japonica) and on the level of serum proteins and keratins in the feathers of these birds. the second generation of quail fed this diet showed an improvement of growth at the final stage and significant internal changes in the protein spectrum of the blood serum. electrophoresis ...197896565
[observation on the antigenic affinity of leptospira and brucella in the serological examination of cattle].36,9% bovine serums which showed a non-specific reaction in examination for brucellosis had titre greater than or equal to 1:400 leptospirosis agglutinins. 15.1% of the serums showed a positive reaction (greater than 1:800), mostly those against l. sejroe and l. grippotyphosa. the cross reactions, found in individual cases within up to 39 days since the first reaction to brucellosis in cattle may signalize early leptospira infections.197896568
[diagnosis of vibriosis in bulls at breeding stations through lavages of the artificial vagina].the objective of the study was to test the suitability of lavages of artificial vaginas which are used for collecting ejaculate for diagnosing the campylobacter fetus subsp. fetus germs. according to the results of the investigation this method may be considered equal to the method of lavages of the prepuce. however, it is important to point out the advantages: it eliminates the danger of an accident, it enables quality lavage in the laboratory. to caputure the campylobacter fetus the filtration ...197896573
a sarcocystis-like protozoon in a sheep with lymphadenopathy and myocarditis.a generalized enlargement of the lymph nodes was found in an emaciated adult ewe. additional autopsy findings included tiny grey-white necrotic foci in the heart muscle, aspiration pneumonia and diffuse pleuritis. light microscopy showed a generalized lymphadenopathy with perilymphadenitis, depletion of lymphocytes and histiocytosis of the lymph node. in histiocytes and vascular endothelial cells of lymph nodes, septal capillary endothelium of lungs and capillary endothelium of myocardium, early ...197896578
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 ...197896580
[isolation of cationic proteins from rabbit thrombocytes and study of their bacteriostatic activity].cation-containing proteins, which possessed the bacteriostatic activity against grampositive microorganism bacillus subtilis shgw, were isolated from rabbit thrombocytes by means of selective extraction. these substances were of heterogenous nature (as shown by polyacrylamide gel disc electrophoresis), including two groups of proteins with molecular weight about 8=10-10(3) and 20=30-10(3) daltons. the bacteriostatic activity of each group of these proteins was studied after gel filtration of the ...197896596
[comparison between t4 (c) and t4 (d)]. 197896624
[biological properties and mechanisms of development of bacteria resistant to fusidin, erythromycin and chloramphenicol]. 197896638
trh test in routine diagnosis and postoperative control of patients with primary thyroid diseases. 199996643
[surgical treatment of digestive complications of radiotherapy (author's transl)]. 199996647
substrate specificity of hexosaminidase a isolated from the liver of a patient with a rare form (ab variant) of infantile gm2 gangliosidosis and control tissues. 199996668
current views on immunoglobulin abnormalities and b cell proliferations. 199996675
sodium iron nafeedta as an iron fortification compound in central america. absorption studies.studies were performed in seven children and 98 adults to compare the proportion of iron absorbed when administered as ferric sulfate (fe2(so4)3), nafeedta, hemoglobin (hb), and ferrous ascorbate. studies in children (mostly iron deficient) showed that when the compounds were given with a milk-rice-sugar formula totalling 5 mg fe, iron from hemoglobin was absorbed best, followed by nafeedta and by fe2(so4)3 (mean percent absorption +/-sd = 34.5 +/- 1.5, 8.6 +/- 1.9 and 3.3 +/- 1.5, respectively) ...199996688
[the myocardiopathies of hereditary neuro-muscular diseases].this joint work has studied the cardiomyopathies occurring in hereditary neuro-muscular disorders (270 cases). the duchenne type of disorder (74 cases) was responsible for asystole (4 cases), for cardiomegaly, and especially for abnormalities of the ecg (59 cases)--q waves and large r waves in v1 and v6. the cardiomyopathy was of the hypokinetic type, with histological evidence of degeneration of the myocardial fibres. dystrophia myotonica of steinart (23 cases) caused conductive disorders (17 c ...199996758
[evaluation of unions of dentists on more solid basis]. 199996805
phospholipid content and activity of pure uridine diphosphate-glucuronyltransferase from rat liver.rat liver phospholipids were radioactively labeled in vivo before purification of udp-glucuronyltransferase to homogeneity. the pure enzyme contained very little phospholipid (approx. 0.7 mol of phospholipid/mol of protein). the solubilization detergent lubrol 12a9 appeared to act as a phospholipid substitute, capable of supporting udp-glucuronyltransferase activity. phospholipase c did not inhibit the pure enzyme activity and pure udp-glucuronyltransferase was stimulated by 40--100% by the addi ...197896816
mode of action of iturin a, an antibiotic isolated from bacillus subtilis, on micrococcus luteus. 197896818
[inborn errors of metabolism (author's transl)]. 199996846
[proton beam treatment in the neurosurgical field]. 199996847
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 ...197896850
differential effects of prostaglandin synthetase stimulators on inhibition of cyclooxygenase.the different effects of prostaglandin synthetase stimulators on inhibition of the cyclooxygenase by structurally distinct classes of nonsteroidal antiinflammatory agents suggest that the enzyme is altered by interaction with these stimulators. reversible stimulation of prostaglandin synthetase activity by phenols and some other compounds and the relative influence of these stimulators on inhibitors of the cyclooxygenase were determined quantitatively. two distinct classes of inhibitors were est ...197896853
phycobiliprotein synthesis in protoplasts of the unicellular cyanophyte, anacystis nidulans.stable and metabolically active protoplasts were prepared from the unicellular cyanophyte, anacystis nidulans, by enzymatic digestion of the cell wall with 0.1% lysozyme. the yield of protoplasts from intact algal cells was approx. 50%. incorporation of l-[u-14c]leucine into cold trichloroacetic acid-insoluble material from protoplasts preparations was linear for 1.5 h and continued for an additional 2.5 h. incorporation of radiolabeled leucine into hot trichloroacetic acid-insoluble material fr ...197896857
the purification, properties and characterization of three forms of alpha-l-fucosidase from monkey brain.alpha-l-fucosidase (alpha-l-fucoside fucohydrolase, ec 3.2.1.51) has been purified to apparent homogeneity (about 22 000-fold over the crude homogenate) from monkey brain. values of kinetic constants for the purified enzyme were as follows: ph optimum, 5.0; km, 0.22 mm; v, 913 mumol/mg per h. alpha-l-fucose was a competitive inhibitor (ki, 0.275 mm) of the enzyme. evidence for the involvement of sulphydryl group(s) and carboxyl group containing amino acid(s) in the catalytic process is presented ...197896860
[several features of the antioxidant action of chemical carcinogens].comparative studies of antioxidative effects of phenole inhibitors (vitamine e) amino-and sulfur-containing radioprotectors, and chemical cancerogens on oxidation of unsatured fatty acid were carried out. some polycyclic hydrocarbons and azo-compounds produce a prolonged and stable decrease of peroxide accumulation rate in oxidized oleic acid. due to this property in the in vivo systems chemical cancerogenes can induce prolonged stable changes in the parameters of vitally important redox process ...199996873
nitrogen fixation and hydrogen metabolism in photosynthetic bacteria.the photosynthetic bacteria are found in a wide range of specialized aquatic environments. these bacteria represent important members of the microbial community since they are capable of carrying out two of the most important processes on earth, namely, photosynthesis and nitrogen fixation, at the expense of solar energy. since the discovery that these bacteria could fix atmospheric nitrogen, there has been an intensification of studies relating to both the biochemistry and physiology of this pr ...197896875
role of carbohydrate residues of human chorionic gonadotropin in stimulation of progesterone secretion by cultures of monkey granulosa cells. 197896881
[nature of changes in the level of steroid hormones and their precursors in peripheral blood of papio monkeys under stress].the radioimmunological method was applied to determination of changes in the peripheral blood plasma level of 12 steroids in male papio hamadryas under immobilization and surgical stress. androgen content decreased, and the concentration of steroid hormone precursors and hydrocortisone blood plasma content rose in response to stress. these changes were in contraphase with the circadian steroid rhythms. the most objective and sensitive criteria of the stress situation evaluation were decrease of ...197896885
[physico-chemical properties of microbial antigens and the immuno-allergic tests].experiments were conducted on guinea pigs sensitized by the delayed and immediate types of allergy. different antigens obtained from the strain of brucella abortus ba-19 were used for sensitization and the resolving action. comparison of the resolving properties of the corpuscular, soluble (ultrasound treated) antigens and purified protein fractions, polysaccharide and rna was carried out in the skin reactions of the immediate and delayed type, passive skin anaphylaxis, acute anaphylactic shock, ...197896888
diminished cellular immunity due to impaired nutrition in oesophageal carcinoma.the nutritional status of 15 negro patients suffering from unresectable carcinoma of the midthoracic oesophagus was evaluated before and after palliative pulsion intubation. all were shown to be in negative nitrogen balance and to have a compromised non-specific cellular immune response. correction of protein-calorie malnutrition and the achievement of positive nitrogen balance were associated with an increase in absolute lymphocyte and t lymphocyte numbers and a significant increase in lymphocy ...199996903
test for differentiation of m. tuberculosis and m. bovis from other mycobacteria.a test is described for selective inhibition of mycobacterium tuberculosis and m. bovis isolates in fluid medium. the method employs rho-nitro-alpha-acetyl-amino-beta-hydroxy-propiophenone (nap) as an inhibitory agent for differentiation of mammalian tuberculosis strains from other mycobacteria.197896930
[serological survey of animal rickettsioses in cameroon. i. evaluation of the threshold of positivity and specificity of the micro-agglutination reaction as related to the size of the animal]. 197796947
[effect on macrophages of acute stress induced in mice by local irradiation].in examining the role of radiation in inducing immunosuppression in tumor-bearing mice it has been shown that the experimental acute stress inadvertently generated by the procedure is profoundly immunosuppressive. it would appear that monocytes under the influence of glucocorticoïds are sequestered in the spleen. this monocyte immobilisation leads to rapid suppression of local inflammatory reactions including delayed hypersensitivity. the increased number of marcrophages in the spleen is co-inci ...199996964
[pattern and nomenclature of serum proteins of the amphibian urodele ambystoma dumerilii duges].by means of many electrophoresis techniques, the serum of ambystoma dumerilii was studied. the pattern in cellulose acetate is different from a. mexicanum proteinogram. direct two-dimensional analysis in acetate/polyacrylamid gel with progressively increasing concentration from 4-30%, gives us the opportunity to observe 41 proteic components. by immunological results, the fastest proteic fraction is equivalent to a globuline with alpha-mobility more than an albumin. a nomenclature for this blood ...199996971
[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.197896972
[renewal of noradrenaline in different zones of the central nervous system of inbred mice strains and their recombinants].a good correlation exists between the learning capacity and norepinephrine metabolism in the neocortex of c57 and balb inbred mice strains, as well as their f1 hybrids and seven recombinant inbred strains derived from their cross. the animals with a better learning performance are characterised by low levels of norepinephrine, as well as a slow metabolic rate of this neurotransmitter in the cortex. such a correlation has not been found to exist in the other cerebral regions studied.199996976
[functional study of the rat olfactory bulb by a 14c-2-deoxyglucose autoradiographic technic].the autoradiographic method has been used in the rat to map active regions in the olfactory bulb after a pulse of 14c-2-deoxyglucose with electrical stimulation of the lateral olfactory tract. the highest optical densities were found at the external plexiform, mitral, internal plexiform and granular layers; the lowest was found in the glomerular layer.197896988
[effect of bromocriptine on the "prolactin-like cell" of nectophrynoides occidentalis (amphibia, viviparous anura): optical and electronic microscopical studies].bromocriptin has an effect on prolactin-like cells of nectophrynoïdes occidentalis. 16 days after delivery, these cells are fully active in normal animals. retention of secretory granules and myelinic formations have been observed in the prolactin-like cells of females treated by cb 154.199997001
[cutaneous respiration in a selachian (scyliorhinus caniculus l.)].cutaneous oxygen consumption (mo2) and cutaneous oxygen uptake from the external medium were investigated in an elasmobranch scyliorhinus caniculus l. in spite of an important mo2 (2.75 +/- 0.28 nmol.mn-1 cm-2 ; n=6) a positive net flux of oxygen through the skin takes place (2.98 +/- 0.33 nmol. mn-1 .cm-2). the skin of the dogfish in an exchanger for oxygen supplying 10% of oxygen requirements of other organs of the body in these experimental conditions (t = 13 degrees c).197897014
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