| experimental evaluation of the mitroflow pericardial heart valve prosthesis. part ii. pathologic examination. | the results of the morphologic and histopathologic examination of 37 bovine pericardial heart valve prostheses that were retrieved after experimental implantation in chacma baboons for periods of one to twelve months are presented in this study. the implanted prostheses consisted of 33 mitroflow valves, size 21 mm, that belonged to four different groups according to the method of preparation of the pericardium (process i to iv) and 4 commercially available ionescu-shiley valves, size 19 mm. all ... | 1988 | 3421507 |
| effects of cysteine and antioxidants on the hepatic redox-state, acetaldehyde and triglyceride levels after acute ethanol dosing. | cysteine and the synthetic antioxidants butylated hydroxytoluene (bht) and n,n'-diphenyl-phenylenediamine (dppd) have been found to protect against the increase in hepatic triglycerides caused by acute ethanol administration (2 g/kg/i.p.) in rats. none of these agents affected the ethanol-induced increase in the hepatic redox-state, measured as lactate/pyruvate and 3-hydroxybutyrate/acetoacetate ratios, and there was no influence of any of the compounds on ethanol metabolism. of the three agents ... | 1987 | 3426693 |
| electrophysiological and behavioral changes after destruction of the basolateral amygdaloid nucleus in rats. | | 1987 | 3431682 |
| changes in body water and plasma constituents during bullfrog development: effects of temperature and hormones. | the osmoregulatory responses to warmer temperatures and hormone treatment in cold-adapted (5 degrees c) rana catesbeiana tadpoles and newly metamorphosed frogs were examined. tadpoles transferred to 11 degrees c and 18 degrees c and left for 5 days lost 7% and 10% of their body weight. plasma [na+] was elevated 28% and 21%, respectively. control (5 degrees c) animals maintained their body weight and plasma [na+] constant. daily treatment with either ovine prolactin (oprl) or ovine growth hormone ... | 1986 | 3485177 |
| interactions between polymorphonuclear leucocytes, bacteroides sp, and escherichia coli: their role in the pathogenesis of mixed infection. | five bacteroides fragilis strains and five bacteroides vulgatus strains were compared with regard to their ability to consume complement and to fix c3, their killing by polymorphonuclear leucocytes, and their ability to inhibit the bactericidal effect of serum and polymorphs on escherichia coli strains. complement consumption was positively related to c3 fixation, but no relation was observed between these variables and the killing of the anaerobes. greatest inhibition of the killing of e coli b ... | 1986 | 3517072 |
| calcium: limited indications, some danger. | calcium chloride has been advocated since the 1920s for the resuscitation of asystole, electromechanical dissociation (emd), and ventricular fibrillation. reports of side effects and complications have been numerous. studies of calcium assays following american heart association recommended dosages have shown dangerously elevated serum levels. large retrospective clinical studies in milwaukee and tampa have found no evidence of improved survival with calcium chloride in asystole and emd. a prosp ... | 1986 | 3536166 |
| rigidity in rats due to radio frequency decerebration and effects of chlorpromazine and mephenesin. | bilateral radio frequency (rf) lesions of the midbrain were produced in an attempt to establish a non-bleeding method of producing decerebrate rigidity in rats. marked extensor rigidity occurred with a high reproducibility in hindlimbs without the appearance of voluntary movement. stretch reflex tension induced by repetitive dorsiflexion of the hindfeet was employed as a measure of the intensity of rigidity. chlorpromazine-hcl (0.1-1 mg/kg, i.v.) and mephenesin (10-50 mg/kg, i.v.) which depress ... | 1987 | 3557053 |
| multipotential differentiation of human y-79 retinoblastoma cells in attachment culture. | the human y-79 retinoblastoma cell line has been studied in attachment culture. evidence is presented of its capability to differentiate partially into cells with characteristics of photoreceptors, conventional neurons, glia and pigment epithelial cells as influenced by appropriate combinations of substrata and differentiating agents. we conclude that retinoblastoma could originate from a primitive neuroectodermal cell of multi-potential character. | 1987 | 3568139 |
| identification in rat liver and serum of water-soluble class i mhc molecules possibly homologous to the murine q10 gene product. | we have identified large quantities of a water-soluble, non-rt1.a class i mhc molecule in the serum of the da rat strain, with a similar molecule being found in aqueous extracts of da liver. the non-rt1.a class i molecules have heavy chains of 41 kd, which is smaller than rt1.a class i molecules isolated from liver membranes (45 kd) but larger than water-soluble rt1.a class i molecules previously identified in serum and aqueous extracts of liver and kidney (40 kd). nh3-terminal amino acid sequen ... | 1987 | 3585249 |
| increased faecal glycosidases in patients with crohn's disease. | the strictly anaerobic faecal flora of patients with crohn's disease (cd) contains higher numbers of coccoid rods (eubacterium, peptostreptococcus and coprococcus species) and gram-negative rods (bacteroides vulgatus) than the flora of healthy subjects. the abnormal flora of patients with cd might affect levels of glycolytic enzymes and metabolic products and thus play some role in the pathogenesis of cd. therefore, the activity of 23 glycosidases that can degrade mucus glycoproteins or plant po ... | 1987 | 3609504 |
| [mechanism of changes in irradiated thymocytes detected by anilinonaphthalenesulfonate]. | in experiments on rat thymocytes obtained 15 min, 2 h and 4 h after irradiation of animals with the dose of 10 gy it was found that 15 min and 4 h following irradiation changes occurred in their membranes increasing the lifetime of the excited state of anilinonaphthalene sulfonate and hydrofobicity and viscosity of its microenvironment. the indicated parameters did not vary from the controls 2 h following irradiation. the analysis of the data obtained prompted a suggestion that the observed chan ... | 1987 | 3628737 |
| abdominal operations: effect on subsequent experimental faecal peritonitis. | rats were subjected to laparotomy, anaesthesia only (controls), laparotomy plus 1-cm-segment ileum isolation, or no treatment (controls) and were challenged with endogenous faecal peritonitis 1 and 2 weeks later, respectively. survival rates were 40% for the laparotomy group and 100% for the ileum isolation group, whereas all controls died. the number of peritoneal leucocytes, particularly macrophages and neutrophils, was significantly (p less than 0.05) higher in the laparotomy group than in th ... | 1987 | 3629184 |
| newt epidermal cell migration in vitro and in vivo appears to involve arg-gly-asp-ser receptors. | the effect of a synthetic peptide consisting of arg-gly-asp-ser (rgds), the amino acid sequence representing the fibroblast attachment site in fibronectin (fn), was tested on migrating newt epidermal cells. in one approach, skin explants were placed on the bottom of plastic dishes coated with human fn, human fibrinogen (fgn), human serum spreading factor (sf), or bovine type i collagen. the explants were then incubated overnight in serum-free medium with or without rgds. in these experiments exp ... | 1987 | 3654790 |
| prevalence of hepatitis b markers in occupational health nurses. | a seroprevalence study was undertaken at the 14th annual conference of the occupational health nurses association of ontario. a total of 151 self-selected registrants (33%) provided demographic, health, and occupational information. blood was drawn for hepatitis b serology (hepatitis b surface antigen, core antibody, and surface antibody). vaccine-induced seropositivity was found in 11 persons (7.3%) while naturally occurring markers were present in 13 nurses (8.6%). this exceeds the natural pre ... | 1987 | 3655952 |
| serological evaluation of the outer membrane protein complexes of five saccharolytic intestinal bacteroides species. | the purpose of this investigation was to develop a serological procedure for rapid identification of the following five bacteroides species: bacteroides distasonis, bacteroides fragilis, bacteroides ovatus, bacteroides uniformis, and bacteroides vulgatus. the outer membrane fractions were assayed using sds-polyacrylamide slab gel electrophoretic techniques. the species-specific protein band from each species as well as the group-specific protein were purified and used to develop an indirect enzy ... | 1987 | 3665895 |
| value of thyroid follow-up registers. | in this study from a county in southern sweden 269 of 271 patients (99.3%) treated with radioiodine for hyperthyroidism over a two-year period were followed up five years later. the routine procedures at hospital clinics and primary health care centres were studied. a high number of toxic multinodular goitre (n = 113; 42.0%) and toxic adenoma (n = 76; 28.3%) emerged, 80 patients (29.7%) had toxic diffuse goitre (graves's disease). during the five-year follow-up the cumulative incidence of hypoth ... | 1987 | 3671919 |
| the influence of various bacteria on the cecal mucosa of monoflora chickens infected with eimeria tenella. a scanning electron microscopic study. | monoflora chickens were established at the age of 2 days by an oral inoculation of one of six species of bacteria (lactobacillus acidophilus, bifidobacterium thermophilum, bacteroides vulgatus, clostridium perfringens, escherichia coli, or streptococcus faecalis). two days later the chickens were infected with eimeria tenella (5 x 10(4) oocytes per bird). there were four groups: uninfected birds as controls, the birds infected with either bacteria or e. tenella alone, and the birds infected with ... | 1987 | 3673342 |
| the binding of decomposition products of udp-galactose to the microsomes and polyribosomes isolated from rat liver. | udp-d-[u-14c]galactose is decomposed to [u-14c]galactose-1-phosphate and [u-14c]galactose by rat liver microsomal and crude polyribosomal fractions, under conditions commonly used to assay of glycosyltransferase activities. udp-d-[u-14c]galactose, at neutral ph, is also chemically degraded to the [u-14c]galactose-1,2-cyclic phosphate. the 1,2-cyclic phosphate derivative of galactose also exists in the commercial udp-d-[u-14c]galactose. it is a very important finding that products of the udp-d-[u ... | 1987 | 3675917 |
| an in vitro method for estimating biologically available vitamin b6 in processed foods. | 1. an in vitro method which used enzymic digestion of the food matrix to release biologically available vitamin b6 is described. 2. vitamin b6-fortified liquid model foods were thermally processed. after these foods had been freeze-dried, one part was subjected to enzymic hydrolysis at ph 2.0 with pepsin (ec 3.4.23.1) followed by a hydrolysis at ph 8.0 with pancreatin. the vitamins that were found in the supernatant fraction, after an acidified methanol treatment of the hydrolysate, were estimat ... | 1986 | 3676156 |
| reciprocal functional interaction of adjacent myocardial segments during regional ischemia: an intraventricular loading phenomenon affecting apparent regional contractile function in the intact heart. | the mechanism of the increase in function in myocardial segments adjacent to those subjected to regional ischemia is not known. to investigate the hypothesis that changes in regional loading are an important causative factor of this phenomenon, 17 dogs were instrumented with segmental shortening sonomicrometers in the left anterior descending and circumflex artery distributions, circumflex coronary flow probes and cuff occluders, as well as circumflex coronary pressure catheters. additionally, t ... | 1986 | 3711491 |
| reciprocal functional interaction of adjacent myocardial segments during regional ischemia: an intraventricular loading phenomenon affecting apparent regional contractile function in the intact heart. | the mechanism of the increase in function in myocardial segments adjacent to those subjected to regional ischemia is not known. to investigate the hypothesis that changes in regional loading are an important causative factor of this phenomenon, 17 dogs were instrumented with segmental shortening sonomicrometers in the left anterior descending and circumflex artery distributions, circumflex coronary flow probes and cuff occluders, as well as circumflex coronary pressure catheters. additionally, t ... | 1986 | 3711491 |
| bvd virus infection and embryo transfer. | | 1986 | 3716157 |
| properties of the penicillin-binding proteins of four species of the genus bacteroides. | the penicillin-binding proteins (pbps) of four species of the genus bacteroides were examined in cell envelope preparations from exponentially growing cultures and intact cells. upon examination by sodium dodecyl sulfate-polyacrylamide electrophoresis, three major high-molecular-weight pbps (molecular weight, 58,000 to 82,000) were resolved, and low-molecular-weight pbps were seen in all strains except bacteroides fragilis. the sporadic appearance of pbp 4 in b. fragilis (molecular weight, appro ... | 1986 | 3729342 |
| evidence that polygalacturonic acid may not be a major source of carbon and energy for some colonic bacteroides species. | five bacteroides species that are found in the human colon can utilize polygalacturonic acid (pga) when they are grown in laboratory media: bacteroides thetaiotaomicron, bacteroides vulgatus, bacteroides ovatus, bacteroides fragilis subsp. a, and bacteroides sp. strain 3452a (an unnamed dna-dna homology group). pga-degrading enzymes from b. thetaiotaomicron have been isolated and characterized previously. to determine whether a pga lyase activity in human feces could be attributed to any of thes ... | 1986 | 3729407 |
| electron microscopic studies on the interaction between normal mice peritoneal phagocytes and treponema hyodysenteriae, treponema innocens and bacteroides vulgatus. | one hundred and twenty female mice (cf1 strain) were divided into three groups of 40. the first group was injected intraperitoneally with broth cultures of treponema hyodysenteriae. the second group was injected with a combination of t. hyodysenteriae and bacteroides vulgatus. the third group was injected with treponema innocens. peritoneal wash from four mice of each group was collected at eight time intervals postinjection, then prepared for and examined by light and electron microscopy. perit ... | 1986 | 3742364 |
| comparison of the fecal microflora in rural japanese and urban canadians. | the fecal microflora of nine rural healthy japanese and eight urban healthy canadians was examined. the two populations ate typical japanese and western diets, respectively. the numbers of eubacteria (p less than 0.01), bifidobacteria (p less than 0.05), bacilli (p less than 0.01), lactobacilli and veillonellae and the frequency of occurrence of bifidobacteria were higher in the japanese than in the canadians. higher numbers of bacteroides and lecithinase-negative clostridia were found in the ca ... | 1986 | 3747865 |
| [surgical approach to abdominal aortic aneurysm with malignant alimentary tract tumor: report of three cases]. | the clinical courses of three cases with various alimentary tract malignant lesions coincidental with abdominal aortic aneurysm were reported. of those three patients, a simultaneous resection of the malignant lesion and aneurysm was carried out in two patients, while an secondary abdominal aneurysmectomy following the resection of the malignant lesion was done in one patient. a 70-year-old man with cancer of the cecum and an infra-renal abdominal aneurysm, was diagnosed preoperatively, and a si ... | 1986 | 3747994 |
| active hepatic glycogen synthesis from gluconeogenic precursors despite high tissue levels of fructose 2,6-bisphosphate. | when fasted rats ate regular lab chow there was a lag time of about 2 h before the concentration of fructose 2,6-bisphosphate (fru-2,6-p2) in liver began to rise from its low basal level. by contrast, in animals refed on a sucrose-based diet hepatic [fru-2,6-p2] increased 20-fold (to a value of approximately 12 nmol/g wet weight) during the first hour. these responses correlated with differences in the ability of the two diets to increase the circulating [insulin]/[glucagon] ratio and thus to el ... | 1986 | 3753973 |
| spinal and supraspinal mechanisms for morphine-pentobarbital antinociceptive interaction in relation to cardiac acceleration response in rats. | in rat experiments, morphine-pentobarbital antinociceptive interaction affecting cardiac acceleration in response to somatic noxious stimulation was analyzed with the use of intrathecal and intracerebroventricular injections of morphine. cardiac acceleration response was induced by tail compression, and heart rate was monitored by electrocardiogram. pentobarbital, in a subanesthetic intravenous dose, antagonized the antinociceptive effect of morphine in relation to cardiac acceleration response ... | 1986 | 3754702 |
| [concentration of anti-brain antibodies in the blood of patients with diffuse toxic goiter and thyrotoxic encephalopathy]. | the content of anticerebral antibodies was studied in the peripheral blood of 10 healthy persons, 42 patients with diffuse toxic goiter and 25 patients with thyrotoxic encephalopathy. it was determined by a method of passive hemagglutination using a human brain protein extract as an antigen. in the healthy persons antibodies to cerebral antigens were undetectable whereas in 24 of 42 patients with diffuse toxic goiter without signs of the nervous system involvement they were detected (log2 titer- ... | 1986 | 3754967 |
| in vivo stability of in vitro labelled 99tcm-red blood cells for radionuclide determination of left ventricular ejection fractions and volumes. | serial determination of radionuclide left ventricular ejection fraction and volumes require a label that remains highly stable after introduction into the human circulation. we have evaluated the in vivo stability of 99tcm-red blood cells (99tcm-rbc) labelled in vitro by preparation with small amounts of a stannous agent in 19 patients with coronary artery disease. the distribution volume of 99tcm-rbc was virtually identical to that of rbc labelled with 51cr. labelling efficiency expressed as th ... | 1986 | 3774253 |
| parietal and frontal eye field neglect in the rat. | rats were given unilateral aspiration lesions of parietal, medial frontal, or dorsolateral frontal (motor) cortex and then tested for visual, auditory and tactile neglect, and for circling. all medial frontal lesion animals showed contralateral neglect in each modality and circled ipsiversively. the parietal lesion rats initially displayed contralateral visual and auditory neglect as severe as that in the medial frontal group. three weeks after the lesions, the parietal group had a smaller resid ... | 1986 | 3790245 |
| [kinetics of the iha antibody response before and after pyquiton treatment in rats infected with paragonimus westermani]. | | 1986 | 3791589 |
| the cytotoxic and mutagenic properties of cholesterol oxidation products. | the oxidation of cholesterol proceeds as part of the lipid peroxidation process in membranes. several oxidation products characteristic of a free-radical mechanism are formed and some can serve as indices of the nature and extent of cholesterol oxidation and of lipid peroxidation in general. among the most typical oxidation products of lipid peroxide-dependent propagation reactions are the enantiomeric 5,6-epoxides and 7-ketocholestanol. small amounts of these compounds may persist in tissues ex ... | 1986 | 3804113 |
| [polarographic method for determining activity of dehydrogenases of the pentosephosphate pathway of carbohydrate metabolism]. | a procedure is developed for estimation of glucose-6-phosphate and 6-phosphogluconate dehydrogenases activity in human erythrocytes. the procedure involved polarographic registration of oxygen consumption, which is directly related to content of nadph formed, in a coupled enzymatic system containing peroxidase and mn2+. | 1986 | 3811277 |
| [intravital acellular hemolysis of extravascular erythrocytes. an experimental contribution to the determination of wound age]. | the time-dependent acellular, destructive changes in erythrocytes was investigated in rabbits by subcutaneous, intraperitoneal, and subdural implantation of blood-filled diffusion chambers with 0.45 micron pores. the animals were killed at various intervals after implantation (7-24 h), and the erythrocytes in the capsules were examined by light and electron microscopy. the findings were quantified by counting 100 cells per preparation under the light microscope; changes in both matrix and membra ... | 1986 | 3811629 |
| comparison of bacteroides vulgatus strains in the enhancement of experimental ulcerative colitis. | strains of bacteroides vulgatus from a variety of sources were tested for their abilities to enhance the inflammatory response in an experimental model for ulcerative colitis. although there were considerable differences noted in inflammatory responses when guinea pigs were immunized with the various strains, there did not appear to be any correlation between the source of the isolates and the severity of the carrageenan-induced lesions. strains from patients with ulcerative colitis were no more ... | 1987 | 3818101 |
| detoxication of cyanide in the chicken by conversion to thiocyanate, as influenced by the availability of transferable sulphur. | the urinary excretion of thiocyanate by hens after dosage with cyanide (30 mumol) has been studied in a series of acute experiments involving 6 hr urine collection periods. more than half of the dose could be recovered as thiocyanate when cyanide was given by intravenous infusion and the rate of excretion closely paralleled plasma thiocyanate concentration. little cyanide was excreted directly. the excretion of thiosulphate fell by an amount that suggested that availability of sulphane sulphur m ... | 1987 | 3829625 |
| shigellosis in children--prevalence of subgroups and antibiotic resistance. | | 1985 | 3836974 |
| on the importance of the level of glutathione and the activity of the pentose phosphate pathway in heat sensitivity and thermotolerance. | heating of ehrlich ascites tumour (eat) cells and mouse fibroblast lm cells to 43 or 44 degrees c respectively, results in an increased level of reduced glutathione (gsh). the maximum elevation in gsh was to 140 per cent for lm cells and to 120 per cent for eat cells. no increase of gsh in eat cells was observed after heating at 44 degrees c. lm cells were treated with diethylmaleate (dem) and the eat cells with buthionine-sulphoximine (bso) at non-toxic doses to deplete the levels of gsh. no ef ... | 1985 | 3875580 |
| estrogen receptors in human goitrous and neoplastic thyroid. | an attempt was made to quantify the number of specific estrogen binding sites in specimens of human goitrous or neoplastic thyroid tissue obtained by surgery. using synthetic estrogen [3h]moxestrol as a radioligand, the concentrations of estrogen receptors found were very low (average 0.57 +/- 0.47 fmol mg-1 of protein) approaching the detection limit. accordingly, no significant sex dependent differences in estrogen receptors could be revealed. | 1985 | 3878776 |
| identification of the phosphocarrier protein enzyme iiigut: essential component of the glucitol phosphotransferase system in salmonella typhimurium. | the phosphoenolpyruvate-dependent phosphorylation of glucitol has been shown to require four distinct proteins in salmonella typhimurium: two general energy-coupling proteins, enzyme i and hpr, and two glucitol-specific proteins, enzyme iigut and enzyme iiigut. the enzyme iigut was solubilized from the membrane and purified about 100-fold, free of the other protein constituents of the phosphotransferase system. enzyme iiigut was found in both the soluble and the membrane fractions. the soluble e ... | 1985 | 3882659 |
| [effect of the homogeneity of the culture, age and amount of the inoculation matter on glucoamylase biosynthesis by aspergillus niger strain b 77]. | | 1985 | 3929570 |
| intraventricular 6-hydroxydopamine increases thyrotropin-releasing hormone (trh) content in regions of rat brain. | rats were given intraventricular (ivt) injections of various doses (50-400 micrograms, hydrobromide salt) of 6-hydroxydopamine (6-ohda) and killed 1, 3 or 6 days later. brains were removed, dissected into 11 regions, and the thyrotropin-releasing hormone (trh) content of each region was measured by radioimmunoassay. 6-ohda (400 micrograms) caused significant elevations in the trh content of 6 regions: olfactory bulb, anterior cortex, brainstem, posterior cortex, hippocampus, and amygdala-pirifor ... | 1985 | 3934717 |
| characterization of nif regulatory genes in rhodopseudomonas capsulata using lac gene fusions. | translational fusions of the escherichia coli laczya operon to rhodopseudomonas capsulata nif genes were obtained by using mini-mudii1734 [castilho et al., j. bacteriol. 158 (1984) 488-495] inserts into cloned fragments of r. capsulata dna. a lac fusion to the nifh gene, which encodes dinitrogenase reductase, was used to classify nif- mutations occurring in regulatory genes. nine mutations were unable to activate nifhdk transcription. the nine mutations define four nif regulatory genes. three of ... | 1985 | 3938422 |
| trichinella spiralis: newborn larval migration route in rats reexamined. | the route by which trichinella spiralis newborn larvae migrate from the small intestine to striated muscle was studied in inbred ao and random-bred sprague-dawley rats. newborn larvae were quantitatively recovered from the thoracic duct lymph, peritoneal cavity, and hepatic portal vein blood during the course of a primary infection with 4000 muscle larvae. the total recovery of newborn larvae assessed in this manner was compared with the number of muscle larvae in control rats receiving the same ... | 1986 | 3943594 |
| hormone concentrations, mammary development and milk yield in goats given long-term bromocriptine treatment in pregnancy. | ten british saanen goats were treated daily with 5 mg bromocriptine intramuscularly from week 8 of pregnancy until week 20 (day 140). by comparison with untreated control goats (n = 8), concentrations of prolactin in plasma were suppressed throughout the treatment period and remained significantly lower until 3 days prepartum, parturition occurring on day 153 +/- 0.7 (mean +/- s.e.m., n = 10). growth hormone concentrations were low, but the incidence of levels exceeding 1 microgram/l was increas ... | 1985 | 3968507 |
| hormone concentrations, mammary development and milk yield in goats given long-term bromocriptine treatment in pregnancy. | ten british saanen goats were treated daily with 5 mg bromocriptine intramuscularly from week 8 of pregnancy until week 20 (day 140). by comparison with untreated control goats (n = 8), concentrations of prolactin in plasma were suppressed throughout the treatment period and remained significantly lower until 3 days prepartum, parturition occurring on day 153 +/- 0.7 (mean +/- s.e.m., n = 10). growth hormone concentrations were low, but the incidence of levels exceeding 1 microgram/l was increas ... | 1985 | 3968507 |
| evaluation of broth microdilution susceptibility results for anaerobic organisms by use of a rapid direct colony inoculum. | a direct colony inoculum suspension procedure was compared with the overnight suspension procedure recommended for the broth microdilution anaerobic commercial system (micro-media systems, inc., potomac, md.). six national committee for clinical laboratory standards-recommended quality control organisms, bacteroides fragilis atcc 25285, clostridium perfringens atcc 13124, bacteroides thetaiotaomicron atcc 29741, bacteroides vulgatus atcc 29327, peptococcus magnus atcc 29328, peptococcus asacchar ... | 1985 | 3972999 |
| studies on human low serum igd phenotype and gm markers. | the human "low serum igd phenotype" was studied by simultaneous gm typing and igd immunoassay of several populations. an association between gm (f+b+) haplotype and low human igd was confirmed and extended to the "low serum igd phenotype"--as defined from population distribution and genetic studies by dunnette et al. 1978. further, it was shown that black american sera determined by gm haplotype, had a similar percentage of "low serum igd phenotype" samples (16%) although they lacked the "associ ... | 1985 | 3978847 |
| multiaxonal horizontal cells in the retina of the tree shrew, tupaia glis. | the retinas of most vertebrates contain two or more morphologically distinct types of horizontal cell, and usually one of these types lacks an axon. among mammals, in which two types are observed, primates are exceptional in that both types of horizontal cell have axons. it then seemed of interest to study the horizontal cells of tree shrews (tupaia glis), insectivores thought to be closely related to primates. golgi impregnations of whole, flat-preparations revealed two types of horizontal cell ... | 1985 | 3980782 |
| metastatic nontraumatic clostridium septicum osteomyelitis. | nontraumatic clostridial infections are rare, but need to be diagnosed and treated early or high morbidity and mortality rates result. we believe that this is the first reported case of metastatic nontraumatic clostridium septicum osteomyelitis. early treatment with surgical debridement and parenteral antibiotics without hyperbaric oxygen was used. an associated occult rectal malignancy was discovered and treated. | 1985 | 3980945 |
| [schistosomiasis]. | | 1985 | 3992098 |
| nitrogen metabolism by the microbial flora of the rabbit caecum. | the dense microbial flora of the rabbit caecum consisted chiefly of bacteria (10(11)/g) with small numbers of yeast cells (10(6)/g). using strictly anaerobic technique, 23% of the direct microscopic cell count was cultivated and 55% of the cultivatable bacteria utilized ammonia as the sole source of nitrogen. ureolytic bacteria were isolated from the caecal lumen and mucosa and were identified as bacteroides vulgatus, clostridium clostridiiforme, bacillus spp. and staphylococcus spp. ammonia ass ... | 1985 | 3997689 |
| in vitro activity of sch 34343 and cefbuperazone against anaerobic bacteria. | the in vitro activities of sch 34343, a new penem antibiotic, and cefbuperazone, a new cephamycin antibiotic, were determined against 459 clinical anaerobic bacterial isolates and compared with the activities of imipenem and cefoxitin, respectively, by an agar dilution method. both penems showed potent and similar activity against all anaerobic bacteria tested, particularly peptococcus spp., bacteroides fragilis, and clostridium perfringens. all organisms except a single strain of fusobacterium ... | 1985 | 4015069 |
| comparison of the icrp and mird models for fe metabolism in man. | a task group of the medical internal radiation dose (mird) committee has recently published a model of fe metabolism in man. this model was developed to calculate doses from radioiron injected for medical diagnostic purposes. it is a compartment model with recirculating fe exchanging between plasma and extracellular fluids, tissue storage compartments, bone marrow and red blood cells (rbc). it is a first order model with the exception of fe in the rbc compartment, which is assumed to retain fe f ... | 1985 | 4019192 |
| serogrouping of bacteroides vulgatus by the agglutination test. | the agglutination technique was used to establish a serological classification scheme for bacteroides vulgatus strains isolated from normal human feces and clinical specimens, especially from ulcerative colitis patients. absorbed antisera to 10 strains of b. vulgatus were prepared. these 10 absorbed antisera were species specific. of 90 b. vulgatus strains tested, 55 (61%) were agglutinated by one or more of these 10 absorbed antisera. a total of 27 serological patterns were grouped into 18 sero ... | 1985 | 4019743 |
| tissue factor gene localized to human chromosome 1 (1pter----1p21). | tissue factor (tissue thromboplastin, coagulation factor iii), a protein component of cell membranes, is an essential cofactor for factor vii-dependent initiation of blood coagulation. since no tissue factor-deficient condition has been described, it is one of only a few proteins of the coagulation system for which the pattern of inheritance has not been ascertained. because of the species-specificity of tissue factor activity and the availability of a very sensitive chromogenic assay, it was po ... | 1985 | 4023720 |
| [production of erosions and ulcers of the colon in syrian hamsters with bacteroides vulgatus isolated from the fecal microflora of human ulcerative colitis]. | | 1985 | 4039383 |
| loss of viability of bacteroides fragilis and bacteroides vulgatus in different media. | | 1985 | 4043068 |
| [early penicillin treatment can prevent cns symptoms in tick-transmitted borrelia meningitis]. | | 1985 | 4046663 |
| automated methods for determination of fat and moisture in meat and poultry products: collaborative study. | a collaborative study was conducted to compare automated methods for rapid determination of fat and moisture in meat and poultry products with the official aoac solvent extraction and forced-air oven methods, respectively. fourteen products were tested, with fat and moisture contents ranging from 2 to 43% and 44 to 74%, respectively. eight of the collaborating laboratories analyzed the products by using a moisture/fat analyzer; 4 laboratories used the aoac methods. standard deviations for within ... | 1985 | 4055632 |
| reversible expression of flagella in campylobacter jejuni. | campylobacter jejuni 81116 and a3249 undergo a bidirectional transition between flagellated (fla+) and aflagellated (fla-) phenotypes. when measured in culture medium, the fla+----fla- transition occurred at a rate of 3.1 x 10(-3) to 5.9 x 10(-3) per cell per generation, and the fla- to fla+ transition occurred at a rate of 4.0 x 10(-7) to 8.0 x 10(-7) per cell per generation. however, passage through a rabbit intestine markedly favored the fla+ phenotype. | 1985 | 4066041 |
| use of a species-specific dna hybridization probe for enumerating bacteroides vulgatus in human feces. | pbv-1, a recombinant plasmid that contains a chromosomal dna fragment from bacteroides vulgatus, hybridized to dna from b. vulgatus but not to dna from other colonic bacteroides species. this plasmid was used as a dna probe to detect and enumerate b. vulgatus in pure culture, in mixed cultures, and in a bacterial fraction from human feces. bacteria in a pure or mixed culture were lysed by heating the culture in naoh. the dna in the disrupted cell suspension was then trapped on nitrocellulose pap ... | 1985 | 4083890 |
| [effects of anti-arrhythmia agents of the heart conduction system]. | | 1985 | 4087425 |
| methods of extraction and high-performance liquid chromatographic analysis of butylated hydroxytoluene from the tissues and serum of rats. | butylated hydroxytoluene (bht) is a phenolic antioxidant which is widely used in foods and has been shown to inhibit chemical carcinogenesis in the mammary gland induced by 7,12-dimethylbenz(a)anthracene. however, its mechanism of action as a tumor inhibitor is unclear. the purpose of this work was first to develop a method for extracting and quantitating bht and then to determine the amounts that accumulate in the tissues and serum of rats as a starting point for looking at mechanistic possibil ... | 1985 | 4096383 |
| inhibition of mitosis by avarol, a natural product isolated from the sponge dysidea avara. | avarol, a sesquiterpenoid hydroquinone, is a cytostatic agent, isolated from the sponge dysidea avara. autoradiographic studies show that in vivo (l5178y mouse lymphoma cells) avarol changes the labelling index in favour of the fraction of unlabelled cells (from 1.24 to 1.04). at concentrations below the 50% inhibition dose, the mitotic index increases from 6.5 +/- 0.5 to 10.4 +/- 0.8; at higher concentrations the formation of mitotic figures is almost completely suppressed. in vitro studies app ... | 1985 | 4096684 |
| action of diazepam on muscular contraction in man. | | 1971 | 4102747 |
| immunological studies in the cat. ii. experimental induction of skin reactivity to foreign proteins. | | 1967 | 4108180 |
| antibodies with multiple binding functions. induction of single immunoglobin species by structurally dissimilar haptens. | anti-hapten sera prepared in rabbits contain individual immunoglobulin species capable of binding several pairs of structurally diverse haptens a and b. (a = inosine, uridine, menadione, vitamin k(1), ribonuclease; b = 2,4-dinitrophenyl). in antisera against hapten a subjected to isoelectric focusing, there are many anti-a immunoglobulin species, but only a small proportion of these bind both a and b. when rabbits are primed with haptens a coupled to a carrier and then challenged with hapten b-c ... | 1973 | 4131746 |
| barr bodies in relation to dna values and nuclear size in cultured human cells. | | 1967 | 4166294 |
| [dependance of the gas exchange on body weight and food consumption during antithyroid and contra-insular treatment in the white rat]. | | 1966 | 4168074 |
| feulgen staining of deoxyribonucleic acid by mixtures of schiff type reagents at different ph values. | | 1970 | 4191050 |
| [generalized congenital listeria monocytogenes infection with fatal outcome (author's transl)]. | | 1973 | 4203464 |
| [influence of metabolic inhibitors on rosette-forming human lymphocytes in vitro]. | | 1974 | 4210343 |
| [assessment of sensitivity to penicillin and other antibiotics in neisseria gonorrhoeae in poland in 1973]. | | 1974 | 4211104 |
| desmosomes in human seminiferous epithelium. an electron microscopic study. | | 1974 | 4216139 |
| rapid typing of dengue viruses by the microprecipitin agar gel diffusion technique. | | 1965 | 4221437 |
| [effect of epiphysectomy on the ovary of the golden hamster (mesocricetus auratus waterh.)]. | | 1967 | 4231631 |
| biochemical effects of cholera enterotoxin: oxidative metabolism in the infant rabbit. | | 1970 | 4244290 |
| a study of workers exposed to detergent enzymes. | | 1971 | 4253729 |
| influence of fluothane on calcium accumulation by the heavy microsomal fraction of human skeletal muscle: comparison with a patient with malignant hyperpyrexia. | | 1972 | 4261809 |
| [accumlation of boron my microorganisms inhabiting the soils of the boron geochemical province of north-west kazakhstan]. | | 1973 | 4272446 |
| histochemistry of the mucins in the posterior lingual salivary glands of some mammals. | | 1973 | 4272722 |
| histochemistry of the mucins in the posterior lingual salivary glands of some mammals. | | 1973 | 4272722 |
| nonspecific life shortening in male mice exposed to the mammary tumor agent. | | 1966 | 4287953 |
| nonspecific life shortening in male mice exposed to the mammary tumor agent. | | 1966 | 4287953 |
| enhanced resistance of mice to virulent japanese b encephalitis virus following inactivated vaccine and poly i:c. | | 1970 | 4323444 |
| arrested development of myelin in chick optic tectum following deaferrentation. | | 1972 | 4345030 |
| effect of alloxan diabetes, insulin & diabetogenic hormones on intestinal transport of tyrosine in rats. | | 1972 | 4346754 |
| hormone- and fluoride-sensitive adenylate cyclases in human fetal tissues. | | 1973 | 4349412 |
| hormone- and fluoride-sensitive adenylate cyclases in human fetal tissues. | | 1973 | 4349412 |
| respiratory development in saccharomyces cerevisiae grown at controlled oxygen tension. | saccharomyces cerevisiae was grown in batch culture over a wide range of oxygen concentrations, varying from the anaerobic condition to a maximal dissolved oxygen concentration of 3.5 mum. the development of cells was assayed by measuring amounts of the aerobic cytochromes aa(3), b, c, and c(1), the cellular content of unsaturated fatty acids and ergosterol, and the activity of respiratory enzyme complexes. the half-maximal levels of membrane-bound cytochromes aa(3), b, and c(1), were reached in ... | 1973 | 4352179 |
| nitrogenase of klebsiella pneumoniae: electron-paramagnetic-resonance studies on the catalytic mechanism. | | 1972 | 4352430 |
| studies on bovine para-influenza (type-3) virus. | | 1972 | 4353411 |
| in vitro perfusion of the human utero-tubo-ovarian unit. | | 1974 | 4358014 |
| glucocorticoid binding sites in rat brain: subcellular and anatomical localizations. | | 1973 | 4363917 |
| rapid diagnostic techniques in clinical virology. | | 1970 | 4365749 |
| interferon bioassay methods and the development of standard procedures: a critique and analysis of current observations. | | 1974 | 4377882 |
| tachyphylaxis. iv. tyramine. | | 1966 | 4380924 |