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isotretinoin and reduction deformities. 19852863524
branhamella catarrhalis cellulitis around a cerebrospinal fluid shunt: case report.a cellulitis surrounding a cerebrospinal fluid shunt caused by branhamella catarrhalis is described. this is the first reported case of a cellulitis caused by this bacterium.19852865299
somatostatin-like immunoreactivity (sli) in pancreatic and intestinal tissues of the duck. a possible origin for the portal circulating sli.substances with somatostatin-like immunoreactivity (sli) were extracted using 2 n acetic acid, from the three pancreatic lobes and the intestine of the duck. the concentration of sli was found to be very high in the pancreas (4.2 micrograms/g wet weight), the splenic lobe containing 80% of pancreatic sli compared with 10% for the dorsal and 10% for the ventral lobes. sli was equally distributed between duodenum, jejunum and ileum and between their mucosal and muscular layers. chromatography of p ...19852867025
the source of malonyl-coa in rat heart. the calcium paradox releases acetyl-coa carboxylase and not propionyl-coa carboxylase.the formation of malonyl-coa in rat heart is catalyzed by cytosolic acetyl-coa carboxylase. the existence of this enzyme in heart is difficult to prove by the abundant occurrence of mitochondrial propionyl-coa carboxylase, which is also able to catalyze the carboxylation of acetyl-coa. we used the calcium paradox as a tool to separate cytosolic components from the remaining heart, and found that acetyl-coa carboxylase activity was preferentially released, like lactate dehydrogenase and carnitine ...19862869975
serotonergic regulation of the brain and gut beta-endorphin and dynorphin content in the rat.a specific radioimmunoassay was used to measure immunoreactive dynorphin (ir-dyn) and beta-endorphin (ir-be) in the brain, pituitary and gut, following a pharmacological manipulation of the serotonin system. administration of the serotonin receptor agonist m-chlorophenylpiperazine (m-cpp, 2.5-5 mg/kg ip) or the serotonin releasing agent fenfluramine (20-40 mg/kg ip) induced a significant increase in the hypothalamic ir-be content and a decrease in its anterior pituitary level. these effects were ...19852870487
potent antagonism of escherichia coli, bacteroides ovatus, fusobacterium varium, and enterococcus faecalis, alone or in combination, for enteropathogens in anaerobic continuous flow cultures.interactions between representative strains of four predominant resident bacteria of the human colon, escherichia coli, enterococcus faecalis, bacteroides ovatus, and fusobacterium varium, and strains of seven enteropathogens, yersinia enterocolitica, shigella flexneri, salmonella typhimurium, vibrio parahaemolyticus, v. cholerae serogroup non o1, staphylococcus aureus, and clostridium perfringens, were examined in studies with an anaerobic continuous flow culture system and medium resembling th ...19862875188
[enteropathogens in travellers returning from the tropics].diarrhea is not only the most common health hazard during travel in the tropics but also the most frequent condition which prompts returning travellers to see a physician. the prevalence of bacterial and parasitic enteropathogens in people attending our outpatient department after returning from the tropics has been studied and the laboratory results of stool examinations have been compared with clinical symptoms. of the 173 persons enrolled, 19 (11%) harboured bacterial pathogens and pathogenic ...19862875520
report of a wound infection caused by vibrio parahaemolyticus and vibrio vulnificus.the present case describes a foot wound caused by a clam shell from which both vibrio parahaemolyticus and vibrio vulnificus were recovered. although extraintestinal infections associated with vibrio parahaemolyticus have been reported previously, the simultaneous isolation of two marine vibrios from our case suggests that these organisms may coexist in mixed infections from a common source.19862875824
gastroenteritis due to kanagawa negative vibrio parahaemolyticus. 19872880146
1,4-dithiothreitol-induced changes in histamine h1-agonist efficacy and affinity in the longitudinal smooth muscle of guinea-pig ileum.the effect of 1,4-dithiothreitol (dtt) on histamine h1-receptor agonist affinity and efficacy has been investigated in longitudinal muscle strips of guinea-pig ileum. exposure of ileal smooth muscle to dtt significantly increased the maximal responses to the partial agonists skf71473 and de-2pea, indicative of an increase in agonist efficacy. this effect was paralleled by a small decrease in ec50 values. in contrast, dtt produced a parallel displacement of the concentration-response curve to the ...19872880626
a dot immunobinding assay (dia) on nitrocellulose membrane for the serological detection of antibodies to entamoeba histolytica.a rapid, cheap, simple and specific serological test of adequate sensitivity for detecting igg antibodies against entamoeba histolytica antigen is described. axenically cultured amoebic antigen was used to precoat the nitrocellulose membrane. the strips were incubated with test samples and later with horseradish peroxidase (hrpo) labelled protein-a conjugate. a dark blue spot was obtained by treatment with peroxidase substrate, 4-chloro-1-naphthol, in positive samples. serum samples from 32 heal ...19862885949
mechanism of action of somatostatin in the hippocampal slice. 19872888131
structural and functional modifications of peripheral large arteries in hypertensive patients. 19872889808
human t-cell leukemia/lymphoma viruses: atl and aids. 19852897327
fibronectin is a component of the sodium dodecyl sulfate-insoluble transglutaminase substrate.liver plasma membranes contain a morphologically distinct protein complex which serves as a substrate for the plasma membrane-associated transglutaminase. the complex, which appears as a two-dimensional sheet, is insoluble in sodium dodecyl sulfate and reducing agents and has been named sits for sodium dodecyl sulfate-insoluble transglutaminase substrate (tyrrell, d. j., sale, w. s., and slife, c. w. (1988) j. biol. chem. 263, 1946-1951). polyclonal antibodies raised against sits were used to pr ...19882897368
effect of human growth hormone-releasing factor (1-29)nh2 on growth hormone release and milk production in dairy cows.twelve cows (209 d in lactation, 642 kg bw) were used in an experiment conducted over four 10-d periods (one preinjection, one injection, and two postinjection). gelatine (n = 6) or 10 mg of growth hormone-releasing factor in gelatine (n = 6) was injected subcutaneously at 1000 h every day on d 11 to 20. data were averaged for the last 5 d of each period. during the injection period, milk, fat, and protein yields increased by 3 kg.d-1 (14.3%), .14 kg.d-1 (16.7%), and .12 kg.d-1 (15.4%), respecti ...19882897385
the tissue distribution of the 3 alpha-fucosyl-n-acetyl lactosamine determinant recognized by the cd15 monoclonal antibodies cmrf-7 and 27.two monoclonal antibodies, cmrf-7 and 27, which react with cells of the granulocytic series, were obtained from hybridomas cloned from separate fusions. biochemical studies indicate that both antibodies are of the cd15 group and react with the antigenic determinant 3 alpha-fucosyl-n-acetyl lactosamine (hapten x) expressed on some glycolipids and several different granulocyte glycoproteins with a wide range of molecular weights. the antigen was found on some promyelocytes and more differentiated ...19882897656
gastric secretion and gastrin under progressive doses of somatostatin-14 and -28 administered intraperitoneally to the rat.the actions of progressive doses of intraperitoneally (ip) administered somatostatin-14 (ss-14) and -28 (ss-28) on gastric secretion (acid, pepsin) and mucosal blood flow (mbf) were studied in conscious gastric fistula rats both under basal conditions and under additional administration of pentagastrin. also, somatostatin-like immunoreactivity was measured in aortal blood in all groups as well as aortal gastrin levels under basal conditions. ip infusion of equimolar doses of ss-14 and ss-28 resu ...19882897678
importance of pulmonary blood volume and aortic blood pressure in regulation of left ventricular function. 19882900297
responses of hippocampal pyramidal cells to putative serotonin 5-ht1a and 5-ht1b agonists: a comparative study with dorsal raphe neurons.in low cerveau isolé transected rats, the effects of microiontophoretic application of putative serotonin 5-ht1a and 5-ht1b agonists on the spontaneous firing rate of ca1 pyramidal cells were compared to those of 5-ht. in contrast to the large current-dependent suppression of unit activity observed with 5-ht, the 5-ht1a compounds, ipsapirone, 8-oh-dpat (8-hydroxy-2-(di-n-propylamino)-tetralin) and ly 165163 (p-aminophenylethyl-m-trifluoromethylphenylpiperazine) and the 5-ht1b compounds, mcpp (m- ...19882901680
evidence of functional alpha 2-adrenergic receptors in adult-rat adipocytes by using the agonist uk 14304.the aim of this study was to re-assess whether alpha 2-adrenergic receptors were present in rat adipocytes, by using uk 14304, a new and very selective alpha 2-agonist. the following observations demonstrate the presence of functional alpha 2-adrenoceptors in rat adipocytes. (1) adipocyte lipolysis was dose-dependently inhibited by uk 14304 (maximal effect 80% at 1 microm-uk 14304, 45% at 10 microm-uk 14304, under basal or theophylline-stimulated conditions respectively). (2) uk 14304 bound spec ...19882901830
effect of oversulphated chondroitin and dermatan sulphate upon thrombin and factor xa inactivation by antithrombin iii or heparin cofactor ii.the kinetics of inhibition of human thrombin and factor xa by antithrombin iii or heparin cofactor ii were examined under pseudo-first-order conditions as a function of the concentration of naturally occurring oversulphated chondroitin and dermatan sulphates. the sulphated glycosaminoglycans (gags) studied were chondroitin sulphate d (csd) (glca-2-so4-galnac-6-so4), chondroitin sulphate k (csk) (glca-3-so4-galnac-4-so4), chondroitin sulphate h (csh) (ida-galnac-4,6-diso4) and polysulphated derma ...19882902851
production of pili on vibrio parahaemolyticus.electron microscopic examination showed that all strains of vibrio parahaemolyticus examined had pili on their surface when the organism was grown on marine agar at 28 degrees c for 6-12 h. the pili were morphologically stable on heat treatment at 60 degrees c for 10 min, but both the lateral and polar flagella possessed by this organism were labile. no immunological cross-reactivity between pili of enterotoxigenic escherichia coli and vibrio cholerae non-01 and those of v. parahaemolyticus was ...19882905206
[purification and characterization of vibrio parahaemolyticus pili isolated from a patient with diarrhea: comparative studies with vibrio cholerae o1 pili]. 19882907917
an experimental study of susceptibility to infection after hemorrhagic shock.hemorrhagic shock has been associated with an increased risk of infection after injury. the immediate and long term effects of hemorrhagic shock without tissue injury on the susceptibility of an animal to infection and the efficacy of antibiotic prophylaxis to prevent infection in this setting were examined. sprague-dawley rats were subjected to hemorrhagic shock (ld15) by bleeding to a mean arterial pressure of 45 millimeters of mercury for 45 minutes and were resuscitated with shed blood and n ...19892911791
renal metabolism of the oxidized form of ascorbic acid (dehydro-l-ascorbic acid).we evaluated whether specific transport and metabolic properties exist in rat and guinea pig kidney for handling the immediate oxidative product of ascorbic acid, dehydro-l-ascorbic acid. isolated tubules were used to measure uptake of 10 microm [14c]-dehydro-l-ascorbic acid over an 8-min incubation period. uptake did not show dependence on the bathing media electrolyte composition but was inhibited to some extent by glucose. in tubules of both animal species the majority of 14c label present in ...19892912166
improved sexual function in hemodialysis patients on recombinant erythropoietin: a possible role for prolactin.as it was reported that correction of anemia in long-term hemodialysis patients by recombinant human erythropoietin (r-huepo) is associated with improved sexual function, we conducted the present study to further delineate the mechanism(s) by which this is brought about. serum prolactin, testosterone, and parathyroid hormone (pth) levels were followed during 4 months of r-huepo therapy. within 4 months of treatment with r-huepo, hematocrit values rose from 23.7 +/- 1.2 to 35.7 +/- 0.2% and hemog ...19892914405
iron regulation of swarmer cell differentiation of vibrio parahaemolyticus.vibrio parahaemolyticus has two distinct cell types, the swimmer cell and the swarmer cell, adapted for locomotion in different circumstances. the swimmer cell, produced when the bacterium is grown in liquid media, is a short rod with a single sheathed polar flagellum. the swarmer cell, produced when v. parahaemolyticus is grown on solidified media, is greatly elongated and synthesizes, in addition to the polar flagellum, numerous unsheathed lateral flagella which are responsible for translocati ...19892914871
saturable binding sites mediate the entry of african swine fever virus into vero cells.binding experiments of 3h-labeled african swine fever virus to susceptible vero cells have shown the presence of saturable binding sites for african swine fever virus on the plasma membrane. the scatchard analysis of the binding data at equilibrium indicates the existence of about 10(4) cellular receptor sites per cell with a dissociation constant (kd) of 70 pm. virus entry into vero cells is mediated by a saturable component, since tritiated african swine fever virus saturable binding and uptak ...19892916331
britain launches genome program. 19892928800
differential depression of hypoglossal nerve activity by alcohol. protection by pretreatment with medroxyprogesterone acetate.upper airway obstruction during sleep occurs more commonly in men than in women and has been treated with progestational agents with some success. alcohol ingestion exacerbates sleep apnea, and recent studies have established that alcohol depresses the respiratory motor activity to upper airway muscles more than that to the diaphragm, a response pattern that favors upper airway obstruction during inspiration. to investigate the possibility that progesterone provides some protection from this act ...19862935056
[fertilization results in superovulated ewes and goats after transmural-intrauterine insemination controlled by laparoscopy].a comparative experiment in oestrous synchronized and superovulated ewes and does is described on which fertilization was studied following natural mating or transmural intrauterine insemination by laparoscopy. thirty-two ewes were inseminated into each uterine horn with 50-100 microliter of fresh undiluted semen, whereas 26 ewes were mated by fertile rams. fertilization rates of eggs recovered 5-7 days later were 93.7% (163/174) and 60.5% (78/129) respectively. eight does were inseminated by la ...19862940732
the comparative in vitro activity of twelve 4-quinolone antimicrobials against enteric pathogens.the minimal inhibitory concentrations (mics) of twelve 4-quinolone antimicrobials were determined for salmonella typhi (25), salmonella spp. (50), shigella spp. (50), campylobacter jejuni (100), vibrio cholerae (10), vibrio parahaemolyticus (10), yersinia enterocolitica (25), aeromonas hydrophila (25) and plesiomonas shigelloides (10). mics were determined using an agar dilution technique in mueller-hinton agar (oxoid, england) supplemented with 10% lysed horse blood. antibiotic containing plate ...19852941257
ultrastructural changes in the sarcoplasmic reticulum in acute myocardial ischemia.we investigated the morphologic changes in the sarcoplasmic reticulum (sr) in acute myocardial ischemia, induced by occlusion of the coronary artery in the canine heart, by freeze-fracture of sr in situ and in vitro, and they were compared to the alterations in ca++-stimulated atpase activity and protein composition of the isolated sr. both sr in situ and the isolated sr exhibited typical intramembranous particles with diameters of 70 to 90 a in freeze-fracture replicas. the intramembranous part ...19862948034
[results of examining the population in a region with high morbidity for oral mucosal cancer: precancerous changes].interviewing and examination of a population characterized by a high level of morbidity of oral cavity cancer, supposedly induced by the use of nas, established a high incidence of leukoplakia and preleukoplakia at this site which are identified as precancerous lesions. the highest relative risk of oral cavity leukoplakia was found in persons who both chew nas and smoke tobacco (12.4). relative risk of leukoplakia is also elevated in those who either chew nas (5.6) or smoke cigarettes (7.7). thi ...19872950660
possible role of helper and cytolytic t cells in mycobacterial infections. 19862952852
the balans chair and its semi-kneeling position: an ergonomic comparison with the conventional sitting position.recently, the balans chair has been introduced with claims that, because of its semi-kneeling position, individuals will experience decreased low-back pain (lbp) as well as improvement in circulation. this study investigated the validity of these claims. twenty healthy subjects were randomly assigned to one of two groups. group 1 subjects sat in the balans chair for a 30-minute study period and then sat in a conventional office chair for an additional 30-minute period. group 2 subjects were stud ...19872954222
regulatory role of fcr+ and fcr- monocyte subsets in mycobacterium leprae-induced lymphoproliferative response in vitro.we investigated nine rhesus monkeys (macaca mulatta) inoculated with mycobacterium leprae and three normal human contacts. peripheral blood monocytes were separated into fc receptor positive (fcr+) and fc receptor negative (fcr-) fractions, and their regulatory role in the lymphoproliferative response in vitro to m. leprae was studied. fcr- monocytes had strong antigen presentation activity and produced no suppressor effect while fcr+ monocytes had weak antigen presentation activity and produced ...19872957129
regulatory role of fcr+ and fcr- monocyte subsets in mycobacterium leprae-induced lymphoproliferative response in vitro.we investigated nine rhesus monkeys (macaca mulatta) inoculated with mycobacterium leprae and three normal human contacts. peripheral blood monocytes were separated into fc receptor positive (fcr+) and fc receptor negative (fcr-) fractions, and their regulatory role in the lymphoproliferative response in vitro to m. leprae was studied. fcr- monocytes had strong antigen presentation activity and produced no suppressor effect while fcr+ monocytes had weak antigen presentation activity and produced ...19872957129
the relationships between oligomeric structure and function of band 3 protein from human erythrocyte membranes: present knowledge and suggestions for further experiments. 19882976450
measuring gene expression with light.light is produced by recombinant escherichia coli that contain lux genes cloned from the marine bacterium vibrio fischeri. the bioluminescence phenotype requires genes for regulatory and biochemical functions, the latter encoded by five lux genes contained in a single operon. these lux genes were disconnected from their native promoter and inserted into the transposon mini-mu. the resulting transposon, mini-mulux, could induce mutations by insertional inactivation of a target gene, and the lux d ...19852983423
respiration-driven na+ pump and na+ circulation in vibrio parahaemolyticus.sodium circulation in vibrio parahaemolyticus was investigated. we observed respiration-driven na+ extrusion from cells by using a na+ electrode. the na+ extrusion was insensitive to a proton conductor, carbonyl cyanide m-chlorophenylhydrazone, and sensitive to a respiratory inhibitor, cn-. these results support the idea of the existence of a respiratory na+ pump in v. parahaemolyticus. the respiration-driven na+ extrusion was observed only under alkaline conditions.19852985548
respiratory syncytial virus fusion glycoprotein: nucleotide sequence of mrna, identification of cleavage activation site and amino acid sequence of n-terminus of f1 subunit.the amino acid sequence of respiratory syncytial virus fusion protein (fo) was deduced from the sequence of a partial cdna clone of mrna and from the 5' mrna sequence obtained by primer extension and dideoxysequencing. the encoded protein of 574 amino acids is extremely hydrophobic and has a molecular weight of 63371 daltons. the site of proteolytic cleavage within this protein was accurately mapped by determining a partial amino acid sequence of the n-terminus of the larger subunit (f1) purifie ...19852987829
conditioned taste aversion suppresses induction of delayed-type hypersensitivity immune reactions.conditioned taste aversion was induced in mice by pairing saccharin drinking with an intraperitoneal injection of lithium chloride, a toxic but nonimmunosuppressive drug. conditioned mice showed not only suppressed saccharin drinking but also a 75% reduction in the induction of delayed-type hypersensitivity immune responses to low doses of sheep erythrocytes. this effect was observed with doses of lithium chloride which had no effect of their own on immune functions. in addition, a reduction in ...19852987987
receptors for epidermal growth factor in the rat uterus.uterine membranes contain high affinity [dissociation constant (kd) = 0.36 nm], saturable binding sites for [125i]iodo-epidermal growth factor (egf). the binding of [125i] iodo-egf is specific since it is abolished by excess unlabeled egf but not by excess unlabeled insulin, fibroblast growth factor, or multiplication-stimulating activity. incubation of [125i] iodo-egf with uterine membranes, followed by chemical cross-linking with disuccinimidyl suberate and detergent extraction reveals a major ...19852988913
opiate- and alpha 2-adrenoceptor-induced hyperpolarizations of locus ceruleus neurons in brain slices: reversal by cyclic adenosine 3':5'-monophosphate analogues.the purpose of this study was to investigate the ionic and second messenger mechanisms underlying the hyperpolarizations induced by the selective alpha 2-adrenoceptor agonist clonidine and the opiate agonist morphine in the locus ceruleus. intracellular recordings were carried out in rat brain slices, and drugs at known concentrations were administered in the perfusate. the cyclic adenosine 3':5'-monophosphate (camp) analogues 8-bromo-camp and dibutyryl camp, while not altering basal activity, r ...19852993542
a nonsteroid anti-inflammatory drug exacerbates coxsackie b3 murine myocarditis.nonsteroid anti-inflammatory drugs are often used to treat myalgias and arthralgias in enteroviral infections, but their effects on acute viral myocarditis are unknown. the effect of the nonsteroidal anti-inflammatory drug, ibuprofen, on acute viral myocarditis was studied in 75 four week old male balb/c mice infected with 1.75 x 10(7) plaque-forming units of coxsackie virus b3 on day 0. ibuprofen was given intraperitoneally at a dose of 15 mg/kg body weight daily. the mice were assigned to four ...19852995470
the biologic significance of the mixed lymphocyte kidney culture in humans.the mixed lymphocyte kidney culture (mlkc) in humans has been studied in normal and abnormal clinical conditions. human renal cortical cells were extracted by collagenase treatment from the kidneys of "normal" heart-beating cadaver organ donors (n = 13), patients with end-stage renal disease (esrd) at pretransplant bilateral nephrectomy and splenectomy (n = 13), and from irreversibly rejected renal allografts at the time of graft nephrectomy (n = 5). proliferation of peripheral blood t lymphocyt ...19852996186
effect of pyrimidinone treatment on lethal and immunosuppressive murine cytomegalovirus infection.the 2-amino-5-halo-pyrimidinones, which are potent interferon inducers and antiviral agents, were found to be protective against lethal cytomegalovirus (cmv) challenge in weanling or neonatal mice when administered before virus challenge. this protection was dependent upon the dosage of pyrimidinone administered. weanling mice infected with a sublethal challenge of cmv exhibited moderate to severe immunosuppression as measured by reduced splenic cell blastogenic responses in vitro to the mitogen ...19853000290
purification of a metalloproteinase inhibitor from human rheumatoid synovial fluid.a metalloproteinase inhibitor present in human rheumatoid synovial fluid was purified by a combination of heparin-sepharose chromatography, concanavalin a-sepharose chromatography, ion-exchange chromatography and gel filtration. the mr of the purified inhibitor was 28000 by sds/polyacrylamide-gel electrophoresis and 30000 by gel filtration. the inhibitor blocked the activity of the metalloproteinases collagenase, gelatinase and proteoglycanase, but not thermolysin or bacterial collagenase. the s ...19853000352
nucleotide sequence and in vivo expression of the ilvy and ilvc genes in escherichia coli k12. transcription from divergent overlapping promoters.the ilvc gene of escherichia coli k12 encodes acetohydroxy acid isomeroreductase, the second enzyme in the parallel isoleucine-valine biosynthetic pathway. previous data have shown that transcription of the ilvc gene is induced by the acetohydroxy acid isomeroreductase substrates, acetohydroxybutyrate or acetolactate, and that this substrate induction of ilvc expression is mediated by a positive activator encoded by the ilvy gene. we report here the isolation and complete nucleotide sequence of ...19863003115
effect of the hyp mutation and diet-induced hyperparathyroidism on renal parathyroid hormone- and forskolin-stimulated adenosine 3',5'-monophosphate production and brush border membrane phosphate transport.the present study was undertaken to investigate the effect of the hyp mutation and diet-induced hyperparathyroidism on renal responsiveness to pth and forskolin and to determine whether the renal brush border membrane phosphate transport defect is expressed in the vitamin d- and calcium-deficient hyp mouse. our results indicate that pth is a potent activator of camp synthesis in renal slices obtained from vitamin d-replete normal mice and hyp littermates. however, in the mutants, the amount of c ...19863004890
cloning and expression of the exfoliative toxin b gene from staphylococcus aureus.exfoliative toxin type b is produced by bacteriophage group ii strains of staphylococcus aureus and is a causative agent of staphylococcal scalded-skin syndrome. in addition to exfoliative toxin b, most isolates also produce a bacteriocin and are immune to the action of the bacteriocin. these phenotypes, as well as resistance to cadmium, were lost after elimination of a 37.5-kilobase plasmid, prw001, from s. aureus ut0007. transduction and transformation showed that prw001 carries the structural ...19863009410
a novel type of human papillomavirus associated with genital neoplasias.the role of human papillomaviruses (hpvs) in the development of genital neoplasias has been well documented. the genomes of two hpv types, hpv16 and hpv18, have been found to be associated with about 70% of invasive carcinomas of the uterine cervix. as, under non-stringent hybridization conditions, hpv dna sequences have been detected in about 90% of cervical carcinomas, it seems likely that additional hpv types are associated with these tumours. here we report the molecular cloning and characte ...19863012352
transposable resistance to trimethoprim and 0/129 in vibrio cholerae.vibrio cholerae biotype el tor strain bm2508, resistant to trimethoprim, 0/129, streptomycin and spectinomycin was isolated from the faeces of a child with severe diarrhoea. resistance to trimethoprim and 0/129 was due to a dihydrofolate reductase type i and resistance to streptomycin-spectinomycin to a 3'',9-aminoglycoside-aminocyclitol adenylyltransferase. the resistance genes were not transferable to escherichia coli and, as inferred from ultracentrifugation in cesium chloride-ethidium bromid ...19863013828
regulation of lateral flagella gene transcription in vibrio parahaemolyticus.two distinctly different organelles of locomotion are produced by vibrio parahaemolyticus. the polar flagellum is responsible for motility in a liquid environment (swimming), and the lateral flagella enable the bacteria to move over surfaces (swarming). synthesis of lateral flagella occurs when v. parahaemolyticus is grown on agar media but not when it is grown in liquid media. we used lux (luminescence gene) fusions to conveniently and sensitively analyze the factors which influence transcripti ...19863013835
[experimental nephritis induced by coxsackie b4 virus in mice--transient mesangial proliferation associated with acute viremia]. 19863018334
induction of an unusual type of shared phosphorylation in human and avian cells by tumor-promoting phorbol esters or transformation.alterations in patterns of protein phosphorylation after exposure to phorbol esters were compared in chicken embryo fibroblasts and kd cells (a human fibroblast line) by two-dimensional gel electrophoresis. a substantial increase in phosphorylation was observed of a major, markedly acidic protein of pi = 4.5 in two-dimensional gels of each cell type. however, the apparent molecular weights of these phosphoproteins differed substantially in the two species with a molecular weight of 67,000 in chi ...19863019525
evidence that a human soluble beta-galactoside-binding lectin is encoded by a family of genes.two cdna clones were isolated by immunoscreening a human hepatoma cdna library with an antiserum that bound specifically to a human soluble beta-galactoside-binding lectin with mr of approximately 14,000. the deduced amino acid sequences of the inserts of these two clones show considerable homology with each other, the sequence of chicken skin beta-galactoside-binding lectin, and eight peptides derived from purified human lung lectin of mr approximately 14,000. however, the sequence differences ...19863020551
evidence that a human soluble beta-galactoside-binding lectin is encoded by a family of genes.two cdna clones were isolated by immunoscreening a human hepatoma cdna library with an antiserum that bound specifically to a human soluble beta-galactoside-binding lectin with mr of approximately 14,000. the deduced amino acid sequences of the inserts of these two clones show considerable homology with each other, the sequence of chicken skin beta-galactoside-binding lectin, and eight peptides derived from purified human lung lectin of mr approximately 14,000. however, the sequence differences ...19863020551
response of young pigs to foot-and-mouth disease oil emulsion vaccination in the presence and absence of maternally derived neutralising antibodies.serum samples and bodyweights were taken at regular intervals for six to seven months from piglets, born to foot-and-mouth disease (fmd) vaccinated or unvaccinated sows, which had been vaccinated at one, two, four or eight weeks old. young pigs, devoid of maternally derived antibodies (mda), were capable of responding to fmd vaccination at one week old, with no deleterious effects on their growth rate. however, their immunity to experimental infection at six to seven months old was poor (33.3 pe ...19863020657
[effects of 5 derivatives of 3-azabicyclo [3,3,1]nonanes on isolated guinea pig ileum myenteric plexus-longitudinal muscle]. 19853020868
eicosapentaenoic acid inhibits synthesis and secretion of triacylglycerols by cultured rat hepatocytes.primary cultures of rat hepatocytes were used to study the effects of eicosapentaenoic and oleic acid on synthesis and secretion of triacylglycerols associated with very low density lipoproteins. from the experiments the following was observed. oleic acid markedly stimulates secretion as well as synthesis of triacylglycerols, whereas eicosapentaenoic acid causes very little or no increase in secretion or synthesis as compared to a fatty-acid-free medium. the effects could already be observed aft ...19863021226
eicosapentaenoic acid inhibits synthesis and secretion of triacylglycerols by cultured rat hepatocytes.primary cultures of rat hepatocytes were used to study the effects of eicosapentaenoic and oleic acid on synthesis and secretion of triacylglycerols associated with very low density lipoproteins. from the experiments the following was observed. oleic acid markedly stimulates secretion as well as synthesis of triacylglycerols, whereas eicosapentaenoic acid causes very little or no increase in secretion or synthesis as compared to a fatty-acid-free medium. the effects could already be observed aft ...19863021226
spermine antagonises the effects of dexamethasone, glucagon and cyclic amp in increasing the activity of phosphatidate phosphohydrolase in isolated rat hepatocytes.rat hepatocytes were incubated in monolayer culture, under serum free conditions, for 8 h. glucagon (10 nm), 8-(4-chlorophenylthio)adenosine 3',5'-cyclic monophosphate (100 microm) and dexamethasone (100 nm) increased the activity of phosphatidate phosphohydrolase by approx. 2-, 3.6- and 3.3-fold, respectively. spermine alone had no significant effect. spermine (2.5 mm) almost completely inhibited the glucagon induced increase in phosphohydrolase activity. it only partially inhibited the dexamet ...19863021529
thymidine kinase with altered substrate specificity of acyclovir resistant varicella-zoster virus.the acyclovir resistant mutant of varicella-zoster virus acv-r (a 8) induced the same level of thymidine kinase activity in infected cells as the parent kawaguchi strain. however, it induced less deoxycytidine kinase activity and did not induce phosphorylating activity for the nucleotide analogue, 9-(2 hydroxy-ethoxymethyl)-guanine-(acyclovir). another acyclovir resistant mutant, acv-r (a 4), which is cross-resistant to phosphonoacetate and is thought to be a viral dna polymerase mutant, induced ...19863022711
identification and characterization of mg2+-dependent phosphotyrosyl protein phosphatase from rat liver cytosol.although highly purified preparations of mg2+-dependent phosphoseryl protein phosphatase (also designated phosphatase ia or phosphatase 2c) dephosphorylated phosphotyrosyl histone, the activity has been resolved from phosphatase ia by polyacrylamide gel electrophoresis at ph 9.5. this novel phosphotyrosyl-specific protein phosphatase absolutely requires mg2+ or mn2+ for activity, is inhibited by zn2+, vanadate and fluoride, and has an optimal ph of 9.0 and mr = 50,000. certain properties of this ...19863022716
isolation of the rhodopseudomonas sphaeroides form i ribulose 1,5-bisphosphate carboxylase/oxygenase large and small subunit genes and expression of the active hexadecameric enzyme in escherichia coli.a library of cloned rhodopseudomonas sphaeroides dna was screened by colony hybridization for form i ribulose 1,5-bisphosphate carboxylase/oxygenase (rubpc/o) sequences using heterologous rubpc/o probes. a recombinant plasmid was identified that hybridized to both the anacystis nidulans and the r. sphaeroides form ii rubpc/o genes. subcloning of a hybridizing 4-kb smai fragment allowed expression of active enzyme in escherichia coli that was identical to form i rubpc/o based on polyacrylamide ge ...19863023189
isolation of the rhodopseudomonas sphaeroides form i ribulose 1,5-bisphosphate carboxylase/oxygenase large and small subunit genes and expression of the active hexadecameric enzyme in escherichia coli.a library of cloned rhodopseudomonas sphaeroides dna was screened by colony hybridization for form i ribulose 1,5-bisphosphate carboxylase/oxygenase (rubpc/o) sequences using heterologous rubpc/o probes. a recombinant plasmid was identified that hybridized to both the anacystis nidulans and the r. sphaeroides form ii rubpc/o genes. subcloning of a hybridizing 4-kb smai fragment allowed expression of active enzyme in escherichia coli that was identical to form i rubpc/o based on polyacrylamide ge ...19863023189
primary biliary cirrhosis: assessment of the quantitative importance of the adenine nucleotide translocator protein as a major mitochondrial antigen.the adenine nucleotide translocator protein (ant) is the first well-characterized mitochondrial polypeptide to be identified as an antigen for antimitochondrial autoantibodies (ama) in pbc sera. because of the potential use for a highly purified antigen as a tool in studying the aetiology of pbc, we have undertaken an assessment of the quantitative importance of ant as a pbc-specific mitochondrial antigen. immunoblotting and elisa techniques were used. both methods reveal pbc antibodies against ...19863028680
primary biliary cirrhosis: assessment of the quantitative importance of the adenine nucleotide translocator protein as a major mitochondrial antigen.the adenine nucleotide translocator protein (ant) is the first well-characterized mitochondrial polypeptide to be identified as an antigen for antimitochondrial autoantibodies (ama) in pbc sera. because of the potential use for a highly purified antigen as a tool in studying the aetiology of pbc, we have undertaken an assessment of the quantitative importance of ant as a pbc-specific mitochondrial antigen. immunoblotting and elisa techniques were used. both methods reveal pbc antibodies against ...19863028680
seasonal changes in the cecal microflora of the high-arctic svalbard reindeer (rangifer tarandus platyrhynchus).the dominant cecal bacteria in the high-arctic svalbard reindeer were characterized, their population densities were estimated, and cecal ph was determined in summer, when food quality and availability is good, and in winter, when it is very poor. in summer the total culturable viable bacterial population was (8.9 +/- 5.3) x 10(8) cells ml-1, whereas in winter it was (1.5 +/- 0.7) x 10(8) cells ml-1, representing a decrease to 17% of the summer population density. of the dominant species of cult ...19873030193
seasonal changes in the cecal microflora of the high-arctic svalbard reindeer (rangifer tarandus platyrhynchus).the dominant cecal bacteria in the high-arctic svalbard reindeer were characterized, their population densities were estimated, and cecal ph was determined in summer, when food quality and availability is good, and in winter, when it is very poor. in summer the total culturable viable bacterial population was (8.9 +/- 5.3) x 10(8) cells ml-1, whereas in winter it was (1.5 +/- 0.7) x 10(8) cells ml-1, representing a decrease to 17% of the summer population density. of the dominant species of cult ...19873030193
pharmacological modification of pulmonary vascular injury: possible role of camp.experiments were designed to test the hypothesis that drugs which increase adenosine 3',5'-cyclic monophosphate (camp) in the lung would prevent the pulmonary hypertension and the increase in vascular permeability caused by the infusion of the oxidant lipid peroxide, tert-butyl hydroperoxide (t-bu-ooh), in isolated rabbit lungs perfused with krebs-henseleit buffer. pretreatment with indomethacin or verapamil was also studied, since these drugs block the increase in pulmonary arterial pressure ca ...19873031002
role of postnatal gonadal function in the determination of thyrotropin (tsh) releasing hormone-induced tsh response in adult male and female rats.permanent effects of postnatal gonadal function on the hypothalamo-pituitary-thyroid axis were examined in male and female rats of the wistar-imamichi strain. animals were used at the age of about 10 weeks. neonatally castrated (nc) males showed a significantly higher plasma tsh response to trh (10 micrograms/kg bw, ip) than males castrated at 1, 2, 3, 4, or 6 weeks of age. the tsh response in intact males was similar to that seen in nc males. neonatal androgenization of nc males with 100 microg ...19873032567
calmodulin in porcine malignant hyperpyrexia.the anaesthetic complication malignant hyperpyrexia (mh) is due to an elevation of the myoplasmic ca2+ concentration. examination of calmodulin isolated from mh susceptible swine suggests that the disorder in calcium regulation in mh is not due to an abnormality in calmodulin.19873032704
a novel mechanism for utilization of extracellular amp in vibrio parahaemolyticus.vibrio parahaemolyticus could grow with amp, adp or atp as the sole source of carbon. in the presence of cl-, a membrane-bound cl(-)-dependent 5'-nucleotidase seemed to hydrolyze the nucleotides extracellularly, and then the cells took up the resulting adenosine. in the absence of cl-, although no significant dephosphorylation of the nucleotides occurred, the cells could still grow with amp, but not with adp or atp. moreover, in the presence of cl-, zn2+ inhibited the 5'-nucleotidase, and inhibi ...19873034248
active lambda and kappa antibody gene rearrangement in abelson murine leukemia virus-transformed pre-b cell lines.the two abelson murine leukemia virus (a-mulv)-transformed cell lines, bm18-4 and abc-1, undergo immunoglobulin l-chain gene recombination during passage in tissue culture. bm18-4 cells are capable of kappa gene recombination, whereas abc-1 cells are capable of both kappa and lambda gene recombination. the expression of h chains is apparently not necessary for continuing l chain gene recombination in either of these cells, although h-chain expression may have been involved in the initiation of l ...19873035056
phosphate regulation of gene expression in vibrio parahaemolyticus.the synthesis of a major outer membrane protein, ompp, in vibrio parahaemolyticus was induced by growth in media deficient in phosphate. the gene, ompp, encoding this protein was cloned. synthesis of ompp in escherichia coli was regulated by the availability of phosphate, and this control required the function of pho regulatory genes of e. coli. analysis of gene fusion strains constructed by mutagenesis with transposon mini-mulux revealed that ompp was transcriptionally regulated in v. parahaemo ...19873038839
two-year survey of etiologic agents of diarrheal disease at san lazaro hospital, manila, republic of the philippines.the prevalence of bacterial pathogens and rotavirus in 2,908 patients with diarrhea who were admitted to san lazaro hospital in manila in 1983 and 1984 was determined. one or more enteric pathogens were isolated or detected in samples from 1,698 (58.4%) patients. isolation rates for the various enteropathogens were as follows: rotavirus, 30.6%; shigella spp., 11.6%; salmonella spp., 9.2%; enterotoxigenic escherichia coli (1983 only), 7.8%; vibrio cholerae biotype eltor, 3.8%; non-o1 v. cholerae, ...19873038946
sensitivity of some marine bacteria, a moderate halophile, and escherichia coli to uncouplers at alkaline ph.the inhibitory effects of uncouplers on amino acid transport into three marine bacteria, vibrio alginolyticus 118, vibrio parahaemolyticus 113, and alteromonas haloplanktis 214, into a moderate halophile, vibrio costicola nrc 37001, and into escherichia coli k-12 were found to vary depending upon the uncoupler tested, its concentration, and the ph. higher concentrations of all of the uncouplers were required to inhibit transport at ph 8.5 than at ph 7.0. the protonophore carbonyl cyanide m-chlor ...19883045092
current perspectives on the epidemiology and pathogenesis of clinically significant vibrio spp.recent taxonomic advances have now implicated several different vibrio species as human pathogens. while the most common clinical presentation of vibrio infection continues to be gastroenteritis, an increasing number of extraintestinal infections are being reported, particularly in immunocompromised individuals. detection of vibrio infections requires a good clinical history and the use of appropriate isolation and identification procedures by the laboratory to confirm illnesses attributed to vi ...19883058295
[absence of vibrio parahaemolyticus in raw fish]. 19883064232
insulin controlled-release microcapsules to prolong the hypoglycemic effect in diabetic rats.a solvent evaporation process was employed for preparing insulin microcapsules by using biodegradable polymers [polylactic acid (pla), hp-55] and non-biodegradable polymers [ethylcellulose (ec), ethylenevinyl acetate (eva)]. the release behavior of insulin microcapsules in ph 7.4 phosphate buffer solution was undertaken by a continuous flow column method. seven types of insulin microcapsules were respectively injected into the flanks of fasting-diabetic sd rats induced by streptozotocin. the glu ...19883064829
the role of the ras oncogene in the formation of tumours.a c-ha-ras 1 oncogene, cloned from the ej human bladder carcinoma cell line, was inserted into a shuttle vector carrying the selectable marker gene gpt that encodes the enzyme xanthine-guanine phosphoribosyl transferase. this construct, psv2gptej, was transfected into nih 3t3 cells by the calcium phosphate precipitation method and cells that had incorporated the plasmid were selected by growth in the presence of mycophenolic acid to which gpt confers resistance. a number of transfectant clones w ...19883075615
the role of the ras oncogene in the formation of tumours.a c-ha-ras 1 oncogene, cloned from the ej human bladder carcinoma cell line, was inserted into a shuttle vector carrying the selectable marker gene gpt that encodes the enzyme xanthine-guanine phosphoribosyl transferase. this construct, psv2gptej, was transfected into nih 3t3 cells by the calcium phosphate precipitation method and cells that had incorporated the plasmid were selected by growth in the presence of mycophenolic acid to which gpt confers resistance. a number of transfectant clones w ...19883075615
hematologic care of the surgical patient. 19863081528
hematologic care of the surgical patient. 19863081528
second-generation cephalosporins. 19863081544
[enterotoxin-like factor(s) produced by vibrio parahaemolyticus].culture filtrates obtained from several isolates of vibrio parahaemolyticus were tested for their enterotoxin-like activities. also their antigenic relationship with cholera enterotoxin and kanagawa hemolysin were tested. in the chinese hamster ovary (cho) cells assay which are usually employed for detecting cholera toxin or heat labile enterotoxin produced by enterotoxigenic escherichia coli, crude culture filtrates obtained from both kanagawa positive and negative strains isolated from patient ...19863084368
some properties of lipoxygenase activities in cytosol and microsomal fractions of mouse epidermal homogenate.lipoxygenase activity in microsomal fraction of mouse epidermal homogenate was characterized in comparison with cytosol lipoxygenase activity. the major activity was identified as 12-lipoxygenase in microsomal fraction as well as in cytosol fraction by the analyses with high-performance liquid chromatography and gas chromatography-mass spectrometry. apparent km values of cytosol and microsomal 12-lipoxygenase for arachidonic acid were 5.0 microm and 6.2 microm respectively. apparent vmax values ...19863085110
some properties of lipoxygenase activities in cytosol and microsomal fractions of mouse epidermal homogenate.lipoxygenase activity in microsomal fraction of mouse epidermal homogenate was characterized in comparison with cytosol lipoxygenase activity. the major activity was identified as 12-lipoxygenase in microsomal fraction as well as in cytosol fraction by the analyses with high-performance liquid chromatography and gas chromatography-mass spectrometry. apparent km values of cytosol and microsomal 12-lipoxygenase for arachidonic acid were 5.0 microm and 6.2 microm respectively. apparent vmax values ...19863085110
effect of chemical sympathectomy with oxidopamine on systemic blood flow in rats with acute pancreatitis.in response to previous demonstrations that either surgical or chemical sympathectomy can ameliorate the severity of acute experimental pancreatitis, and suggestions that the benefits of sympathectomy are related to alterations in the absolute blood flow or the pattern of blood flow within the pancreas or splanchnic organs, we studied blood flow in rats with acute deoxycholate pancreatitis. the animals had preliminary chemical sympathectomy with a false neurotransmitter (oxidopamine) prior to th ...19863087651
ontogenetic development of pancreatic thyrotropin-releasing hormone in human foetuses and in infants.the ontogeny of thyrotropin-releasing hormone (trh) in pancreata of human foetuses from 15-36 weeks of gestation and of infants has been studied. trh was detectable in the pancreas of a 15 week old foetus; a progressive increase of pancreatic trh content was observed until the 34th week of gestation, whereas a progressive decrease was found in the late period of pregnancy and in 1 year old infants. in contrast, the pancreatic insulin content showed a progressive increase during the entire pregna ...19863092527
effect of aldose reductase inhibitor (sorbinil) on integration of polyol pathway, pentose phosphate pathway, and glycolytic route in diabetic rat lens.this study examines the effect of an aldose reductase inhibitor (sorbinil) on the flux of specifically labeled glucose through alternative pathways of metabolism in the lens of normal and diabetic rats 1 wk after the induction of diabetes with alloxan. in the diabetic rat lens, there was an apparent increase in the flux of glucose through the pentose phosphate pathway (ppp), as measured by the difference in the yields of 14co2 from [1-14c]glucose and [6-14c]glucose [c1-c6], this value was 0.087 ...19863093302
purification and partial characterization of a vibrio hollisae hemolysin that relates to the thermostable direct hemolysin of vibrio parahaemolyticus.hemolysin produced by vibrio hollisae (vh-rtdh), which is related to the thermostable direct hemolysin (vp-tdh) of vibrio parahaemolyticus, was studied. vh-rtdh was purified by successive column chromatographies on diethylaminoethyl-cellulose and an immunoaffinity column coupled with anti vp-tdh immunoglobulin. the purified toxin was homogeneous, as demonstrated by conventional and sodium dodecyl sulfate--polyacrylamide gel electrophoresis (page). the molecular weight of vh-rtdh was slightly sma ...19863094925
intracellular distribution of 73,000 and 72,000 dalton heat shock proteins in hela cells.intracellular localization of 73,000 and 72,000 dalton heat shock proteins (hsp73/72) in hela cells that were heat shocked or treated with chemical stressors was investigated using indirect immunofluorescent staining. the antiserum used specifically recognized the hsp73/72 in hela cells, and hsps were increased by heating cells at 42 degrees c for 2 or 4 h and by prior treatment with chemical stressors (sodium arsenite, cadmium chloride, 8-hydroxyquinoline and ethanol). there was diffuse cytopla ...19863098874
thromboxane a2 biosynthesis in human disease.thromboxane a2 (txa2), the predominant cyclooxygenase product of human platelets, is a potent vasoconstrictor and platelet agonist. although its biological properties are readily appreciable in vitro, it has been difficult to define its biological importance in vivo. to a large extent this reflected the problems associated with efforts to monitor biosynthesis of this eicosanoid and the lack of selective pharmacological probes that prevented the synthesis of txa2 or antagonized its biological act ...19873100340
induction of phage-like particles from a pathogenic strain of vibrio parahaemolyticus by mitomycin c.a rapid drop of absorbance of cell suspensions due to cell lysis was observed midway in cell growth of a pathogenic strain, vibrio parahaemolyticus wp1, when the cells were incubated in a growth medium containing mitomycin c. we succeeded in isolating phage-like particles from the cell lysate, but not from that of the non-pathogenic strain, wp28. the purified particle has a clear-cut envelope and is hexagonal in shape with no tail. the size of particles is about 65 millimicrons on the diagonal a ...19863101681
evidence for neoplastic cell differentiation in mediastinal t lymphoblastic lymphoma.immunostaining of frozen sections from a mediastinal t lymphoblastic lymphoma (t-ll) revealed the existence of two neoplastic cell populations characterized by different degrees of maturation. several large nodules of 3a1+/t11+/t9+ t6-/t4-/t8-/t3- lymphoid cells, resembling normal early thymocytes, were surrounded by 3a1+/t11+/t9+/t6+/t4+/t8+/t3- cells resembling normal cortical thymocytes. the junctional area between early and cortical lymphocytes was occupied by numerous leu-m3+/pam-1+/dr+ ret ...19873103325
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