Publications

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histochemical observations of lipid droplets and glycogen in mouse eggs with abnormal development. 19854087639
alkaline quenching of bacteriorhodopsin tryptophanyl fluorescence: evidence for aqueous accessibility or a hydrogen-bonded chain. 19854089036
alkaline quenching of bacteriorhodopsin tryptophanyl fluorescence: evidence for aqueous accessibility or a hydrogen-bonded chain. 19854089036
[ultrastructural aspects of the wound healing process of the skin of albino rats]. 19854089424
muscle cross-bridge kinetics in rigor and in the presence of atp analogues.recently we reported preliminary mechanical experiments on freshly skinned rabbit psoas fibers that suggested that while almost all of the cross-bridges are attached to actin in the presence of 4 mm adenyl-5'-yl-imidodiphosphate (amp-pnp) (ionic strength, 0.13 m), there is an equilibrium between the attached and detached states, so that, in the presence of 4 mm amp-pnp, fibers should not be able to maintain tension (schoenberg, et al., 1984, in contractile mechanisms in muscle, pollack and sugi, ...19854092069
phase shift of daily profiles of n-acetyltransferase in the rat pineal gland.pineal n-acetyltransferase activity (nat) has a circadian rhythm with peak values in the dark time and low values in the light time. nat time profiles were measured in rats exposed to ld 14:10, to constant dark, and to acute (less than 48 hr) light-dark treatments. in all experiments, imposition of light suppressed nat. the phase of the dark time nat cycle was altered 2 hr or less by the following treatments: 3 hr light in the early subjective night, 3 hr light in the late subjective night, 2 hr ...19853831309
[effect of titanium phosphate, zirconium oxide and a mixture of ammonium phosphotungstenate with zirconium phosphate on the elimination of radioactive cesium from the bodies of rats]. 19853835674
a new partition thin-layer chromatographic method for steroid separations.tlc plates with a 25 mu thick polyamide stationary phase were modified for the separation of neutral steroids by impregnation with propylene glycol. a mixture of tritiated 5 alpha-androstan-3 alpha,17 beta-diol, testosterone, 17 beta-hydroxy-5 alpha-androstan-3-one and 4-androstene-3,17-dione was applied to the plate and developed in a toluene mobile phase to a height of 13.6 cm. this resulted in complete resolution of the 4 compounds as detected by a gas flow scanner or imaging analyzer. cuttin ...19853835732
isolation and characterization of neuropeptide y from porcine intestine.the isolation and primary structure of intestinal neuropeptide y (npy) is described. the peptide was purified from porcine intestinal extracts using a chemical assay and radioimmunoassay for npy. the amino acid sequence of this peptide is: tyr-pro-ser-lys-pro-asp-asn-pro-gly-glu-asp-ala-pro-ala-glu-asp-leu-ala- arg-tyr-tyr- ser-ala-leu-arg-his-tyr-ile-asn-leu-ile-thr-arg-gln-arg-tyr-nh2. this the structure of intestinal npy is identical to the npy of brain origin.19853838090
nucleotide sequences of the cdna and an intronless pseudogene for human lactate dehydrogenase-a isozyme.eight cdna clones for lactate dehydrogenase-a isozyme (ldh-a) were isolated from a human fibroblast cdna library, characterized, and no sequence heterogeneity was found. four cdna clones appear to contain nearly full-length cdna inserts and the complete nucleotide sequence of 1710 base pairs consists of the protein-coding sequence (999 base pairs), the 5' (97 base pairs) and 3' (565 base pairs) untranslated regions and poly(da) tail (49 base pairs). the predicted amino acid sequence of the human ...19853838278
molsidomine on cardiovascular leukotriene d4 actions.anaesthetized open-chest dogs were used to study the effects of intracoronary leukotriene d4 (ltd4; 0.5 micrograms/kg) on haemodynamics, the electrocardiogram (ecg), coronary blood flow in the left circumflex artery and coronary resistance in the absence or presence of the antianginal drug molsidomine (500 micrograms/kg i.v.). ltd4 increased left ventricular (lv) filling pressure from 6.5 +/- 3.8 to 14.7 +/- 3.2 mm hg (p less than 0.01), decreased lv dp/dtmax from 2,500 +/- 200 to 1,240 +/- 205 ...19853839292
myosin light chain phosphorylation and isometric twitch potentiation in intact human muscle.the effects of a single voluntary contraction of the quadriceps muscle group on phosphate incorporation into the phosphorylatable light chains (p-light chains) of fast and slow myosin isolated from the vastus lateralis muscle and potentiation of the electrically stimulated twitch tension was studied in intact human muscle. twitch potentiation was maximal 20 s after the voluntary contraction. thereafter, twitch potentiation declined, but was still significantly higher than pre-contraction values ...19853839303
heterogeneity of membrane phospholipid mobility in endothelial cells depends on cell substrate.cellular growth control and differentiation have been shown to be dependent on both cell-cell and cell-substrate contacts. interactions of cells with extracellular material are critical events during embryonic development and maintenance of tissue function. plasma membrane receptors have been described for components of the extracellular matrix such as fibronectin, laminin and various collagen types. transmembrane signalling has been shown to be influenced by the lateral mobilities of the plasma ...19853839906
7-hydroxyguanine, a novel antimetabolite from a strain of streptomyces purpurascens. i. taxonomy of producing organism, fermentation, isolation and biological activity.strain a-347, an actinomycete isolated from a soil sample, was found to produce a new antimetabolite, 7-hydroxyguanine. the aerial mycelium formed spiral spore chains with spiny spore surface. the chemical composition of strain a-347 indicated that it was an actinomycete of cell wall type i. from its morphological, cultural, physiological characteristics and direct comparison with the type culture, this strain was classified as streptomyces purpurascens. 7-hydroxyguanine was purified from the br ...19853840157
isolation and hypoglycemic activity of ganoderans a and b, glycans of ganoderma lucidum fruit bodies. 19853840903
tactile cutaneous representation in cerebellar granule cell layer of the opossum, didelphis virginiana.recent studies of the albino rat revealed extensive cutaneous somatosensory projections to the granule cell (gc) layer of the cerebellar hemispheres and the caudal vermis. these projections are organized asomatotopically in patchy mosaics. to determine whether similar projections exist in a marsupial, we explored the gc layer of the cerebellar cortex of anesthetized virginia opossums using in-depth microelectrode micromapping and juxtathreshold cutaneous natural stimulation techniques. we found: ...19853843070
powerline frequency electric and magnetic fields: a pilot study of risk perception.the perception of the potential risk arising from human exposure to 50/60 hz electric and magnetic fields was studied with a quasi-random sample of 116 well-educated, opinion leaders using the risk perception framework previously developed by slovic, fischhoff, and lichtenstein. these individuals rated exposure to fields from transmission lines and electric blankets on a variety of scales that have been found useful in characterizing people's risk attitudes and perceptions. these judgments allow ...19853843677
single-step purification of "kallikrein-resistant" kininogen from rat plasma using monoclonal-antibody immunoaffinity chromatography.monoclonal antibody to rat plasma kininogen, obtained after immunization of mice with the kininogen prepared by conventional methods, was purified from ascites fluid and coupled to cnbr-activated sepharose-4b. monoclonal-antibody affinity adsorbant thus prepared provided a rapid single-step method of purifying to homogeneity plasma kininogen. purified rat plasma kininogen showed identical molecular weight and immunological cross-reactivity to rat plasma low molecular weight (lmw) kininogen purif ...19853851460
recognition of a leukemia-related antigen by an antiidiotypic antiserum to an anti-gp70 monoclonal antibody.the possibility that receptors for retroviral gp70 share structural elements with the antigen-binding sites of anti-retroviral gp70 antibodies was investigated. a monoclonal antibody (1416) was produced that reacted with the gp70 of a cloned recombinant leukemogenic retrovirus, termed p1. an antiidiotypic antiserum raised to 1416 was tested for its ability to bind to the thymic leukemia induced by p1 (p1 thy). a membrane structure was identified on the surface of p1 thy that reacted with the ant ...19853856626
immigrants and a public oral health care service for children in denmark.the present study was conducted to compare level of dental caries, treatment pattern and contact patterns with the child oral health care system of children of immigrants. the study comprised 239 turkish, 117 pakistani and 91 other immigrants and a control group of 359 danish children. data were extracted from the dental records in the clinic where they were treated. all groups of immigrants showed more caries in the primary dentition and less caries in the permanent dentition than danish childr ...19853860330
cholecystokinin potentiation of dopamine-mediated behaviors in the nucleus accumbens. 19853861122
[morphological changes in young rat mandible after release of muscle function during growth]. 19853864900
protein loss of bovine dental enamel during in-vitro subsurface demineralization.a chemical system based on the dialysis principle was used to study protein loss of dental enamel during demineralization with an acetic-acid buffer solution containing calcium and phosphate, in which the fluoride-ion activity was kept constant. this resulted in a subsurface lesion, with a depth of about 130 microns. after demineralization, protein material was isolated from the demineralization solution. u.v. spectra of the protein showed strong absorbance between 240 and 300 nm. amino-acid com ...19853865639
[adaptation of rhodopseudomonas palustris to changes in atmospheric conditions].the high level of delta-aminolaevulinate synthetase (ala-s) in rhodopseudomonas palustris cells grown under photosynthetic conditions decreased when they were vigorously aerated; moreover, the bacteriochlorophyll synthesis suddenly stopped. when aeration was interrupted, enzymatic level increased notably, but bacteriochlorophyll level did not. chloramphenicol added to cultures when aeration was interrupted did not affect the increase of enzymic level. when it was added as the aeration started, t ...19853870744
reactivities of neoplastic t cells to human autoantibody and monoclonal antibodies. 19853873778
antifibrillatory actions of bepridil and butyl-mdi, two intracellular calcium antagonists.the antifibrillatory and electrophysiologic actions of bepridil and butyl-methylenedioxyindene (bu-mdi), two intracellular calcium antagonists, were examined in anesthetized dogs. the administration of bepridil (1.0-10.0 mg/kg i.v.) significantly increased the electrical threshold for ventricular fibrillation determined during unobstructed coronary flow, and was associated with a significant decrease in ventricular excitability and a progressive depression in ventricular myocardial conduction. b ...19853874780
isolation and characterization of epidermal growth factor from human milk.epidermal growth factor (egf) has been purified from human milk. the purification was monitored with a human placental membrane radioreceptor assay using murine salivary epidermal growth factor i (megf i) as a competitive ligand and was achieved exclusively by the use of reverse-phase liquid chromatography (rplc). the sequential use of preparative, semipreparative and analytical rplc on an octylsilica support with solvent systems of different solute selectivity such as pyridine formate, triethyl ...19853874788
role of the posterior capsule in the prevention of postoperative bacterial endophthalmitis: experimental primate studies and clinical implications.the posterior capsule has an important effect on the risk of postoperative bacterial endophthalmitis. in order to investigate whether the posterior capsule inhibited the spread of infection into the vitreous we performed extracapsular cataract extraction in both eyes of 10 primates. in one eye of each primate the posterior capsule was left intact and in the other eye a large posterior capsulectomy was performed. when the anterior chambers were challenged with equivalent inocula of staphylococcus ...19853877524
pathophysiology of the kidney in rats with heymann nephritis.alterations in kidney function were assessed early in the course of heymann nephritis that was induced in rats by immunization with fx1a, an extract prepared from rat kidney cortex. whole kidney and single nephron function were evaluated by clearance and micropuncture techniques. kidney function was studied in stage 1 of heymann nephritis, before the onset of proteinuria, and in stage 2, when antibodies are deposited along the brush border of proximal tubules. although overall kidney function wa ...19853877841
clinical studies with corticotropin releasing factor: implications for the diagnosis and pathophysiology of depression, cushing's disease, and adrenal insufficiency.corticotropin releasing factor (crf) is a 41 amino acid peptide first isolated from sheep hypothalami and thought to be a principal modulator of the hypothalamic-pituitary-adrenal cortical (hpa) axis. we report herein a series of clinical studies with crf in healthy volunteers and in patients with abnormalities in hpa function, including depression, cushing's disease, cushing's syndrome, and addison's disease. our data indicate that crf can be a diagnostic aid in distinguishing various disorders ...19853878972
aspartate: 2-oxoglutarate aminotransferase from trichomonas vaginalis. identity of aspartate aminotransferase and aromatic amino acid aminotransferase.aspartate: 2-oxoglutarate aminotransferase from the anaerobic protozoon trichomonas vaginalis was purified to homogeneity and characterized. it is a dimeric protein of overall mr approx. 100000. only a single isoenzyme was found in t. vaginalis. the overall molecular and catalytic properties have features in common with both the vertebrate cytoplasmic and mitochondrial isoenzymes. the purified aspartate aminotransferase from t. vaginalis showed very high rates of activity with aromatic amino aci ...19853879173
effect of octanoate on blood-brain barrier permeability using l-dopa as a marker.short-chain fatty acid injection into animals produces coma, seizures, and hyperventilation. one mechanism of coma production may be through alterations in membrane permeability characteristics. the spg histofluorescence technique was used to evaluate changes in blood-brain barrier permeability to injected l-dopa in rats after intraperitoneal injections of the short-chain fatty acid, sodium octanoate. diffusion of intravascular fluorescence was observed around brain capillaries in the octanoate- ...19853880408
effect of octanoate on blood-brain barrier permeability using l-dopa as a marker.short-chain fatty acid injection into animals produces coma, seizures, and hyperventilation. one mechanism of coma production may be through alterations in membrane permeability characteristics. the spg histofluorescence technique was used to evaluate changes in blood-brain barrier permeability to injected l-dopa in rats after intraperitoneal injections of the short-chain fatty acid, sodium octanoate. diffusion of intravascular fluorescence was observed around brain capillaries in the octanoate- ...19853880408
effect of antigen form on local immunoglobulin a memory response of intestinal secretions to shigella flexneri.an enhanced memory response, as shown by increased titers of specific immunoglobulin a (iga), was seen in intestinal secretions from isolated thiry-vella loops in rabbits primed orally with live, locally invasive shigella sp. x16 and challenged 60 days later with a single oral dose of the same antigen. heat-killed shigella preparations, when used as either the priming or challenge antigen, did not elicit such a memory response in this system. in the present study, the role of antigen form and do ...19853880720
an animal model of haemolytic--uraemic syndrome in shigellosis: lipopolysaccharides of shigella dysenteriae i and s. flexneri produce leucocyte-mediated renal cortical necrosis in rabbits.to develop an animal model of the haemolytic-uraemic syndrome during shigellosis, rabbits were injected with lipopolysaccharides (lps) extracted by the hot phenol-water method from shigella dysenteriae i and from s. flexneri. two intravenous injections of lps spaced by 24 h elicited renal cortical necrosis in a generalized shwartzman reaction characterized by fibrin deposition in glomerular capillaries and by elevated plasma creatinine concentration. rabbits rendered leucopenic by busulphan trea ...19853882120
vesicles and cisternae in the trans golgi apparatus of human fibroblasts are acidic compartments.recently we demonstrated that low-ph compartments can be visualized with the electron microscope using a basic congener of dinitrophenol, 3-(2,4-dinitroanilino)-3'-amino-n-methyldipropylamine (damp), which concentrates in acidic compartments and can be detected by immunocytochemistry with a monoclonal anti-dinitrophenol antibody. we now report that damp also accumulates in cisternae and vesicles associated with the trans face of the golgi apparatus. damp rapidly leaves this compartment when cell ...19853882239
evidence for proctolin-like substances in the central nervous system of the leech hirudo medicinalis.the distribution of proctolin-like immunoreactive (pli) cells was mapped in the central nervous system of the leech hirudo medicinalis. in segmental ganglia, pli cells can be divided into two groups: cells that stain repeatedly in every successive ganglion, and cells that stain only in specific segmental ganglia. the number of pli cells, therefore, ranged from eight to 20 cells per ganglion. one bilateral pair of pli cells (cells pli-1) was further characterized morphologically by lucifer yellow ...19853882776
fatal fungemia with arthritic involvement caused by trichosporon beigelii in a bone marrow transplant recipient. 19853882853
rabbit antisera against three different bacteria which can induce reactive arthritis: analysis by elisa, immunoprecipitation and western blot.three strains of bacteria which induce reactive arthritis were collected: a shigella flexneri, designated 7060; another sh. flexneri, designated 316; and a yersinia enterocolitica of serotype 03. rabbit antisera were generated against each of them to test for the extent and nature of cross-reactivity among these strains. when analysed by the elisa technique, antisera against 7060 and 316 showed strong cross-reactivity with y. enterocolitica. in contrast, the reaction of antisera prepared against ...19853884493
plaque formation by virulent shigella flexneri.an in vitro tissue culture plaque assay was developed to investigate the intracellular replication and intercellular spread of virulent shigellae. shigella plaques were formed in hela cell monolayers in the presence of an agarose overlay containing tissue culture medium and gentamicin, which eliminated extracellular bacterial growth. microscopically, the plaques were characterized by a central area of dead host cells surrounded by cells infected with shigellae. cells further away from the plaque ...19853884506
cloning the gene for congo red binding in shigella flexneri.the ability to bind the dye congo red from agar medium is associated with virulence of shigella species. dna sequences conferring this property have been cloned from a large, 140-kilobase plasmid of shigella flexneri into a plasmid vector. this recombinant plasmid does not fully restore virulence to s. flexneri isolates which have lost the large plasmid. this indicates that other genes present on the 140-kilobase plasmid must also be required for virulence of s. flexneri. the cloned fragment con ...19853884508
shigella flexneri bacteraemia.shigellosis is usually a non-invasive enteric disease, rarely accompanied by extra-intestinal manifestations. shigella septicaemia is therefore reported in a child aged 10 months. in the laboratory the organism was resistant to ampicillin and only moderately susceptible to chloramphenicol. the patient responded well to cotrimoxazole to which the organism isolated was susceptible in vitro. we recommend that blood as well as faeces should be cultured in exceptionally ill patients with suspected or ...19853884717
effect of temperature on the circular dichroism spectra of beta 2-microglobulins.when the temperature was lowered from 25 to 5 degrees c dramatic changes were observed in the near-ultraviolet circular dichroism spectra of bovine and caprine but not human beta 2-microglobulin. comparison of the protein sequences suggests that the conformational change occurs in the amino-terminal 24 residues and that a tyrosine residue located on a potential beta-turn acts as a reporter group. because delta h degrees is small (-22 kcal x mol-1), such conformational changes, possibly not readi ...19853886425
studies of metabolites in diarrheal stool specimens containing shigella species by frequency-pulsed electron capture gas-liquid chromatography.eleven diarrheal stool specimens and 10 control stool specimens from cairo, egypt, were studied by frequency-pulsed electron capture gas-liquid chromatography (fpec-glc). four cases involving shigella sonnei, three cases involving shigella boydii, and four cases involving shigella flexneri were studied. the aqueous stools were centrifuged, extracted with organic solvents, and derivatized to form specific electron-capturing derivatives of carboxylic acids, alcohols, hydroxy acids, and amines. ana ...19853886695
perturbation of insulin oscillations by nerve blockade in the in vitro canine pancreas.the in vitro canine pancreas produces an oscillatory pattern of insulin secretion during a constant glucose concentration despite the lack of external nervous modulation or recirculating hormone feedback. the normal period of insulin fluctuations (7.4 +/- 0.34 min) is unaffected by combined adrenergic and cholinergic blockade by 5 microm atropine, 4 microm propranolol, and 4 microm phentolamine (8.0 +/- 0.31 min, p less than 0.20). to test the theory that the coordination of islet secretion may ...19853887939
erythema nodosum associated with shigella colitis. 19853888122
survival of bacterial enteropathogens in the ice of popular drinks.we examined the survival of four bacterial enteropathogens frozen in ice and subsequently allowed to melt in various popular drinks. the counts of all the organisms were markedly lowered by freezing alone, and the numbers were further decreased by exposure to some of the drinks. nevertheless, none of the organisms were completely eliminated as a result of freezing for 24 hours followed by melting in any of the test drinks, even when the drink was 86-proof tequila.19853889393
[shigella serotypes isolated july-october 1983 and their antibiotic sensitivity].twenty four strains of shigella were isolated from the stool of patients who had been admitted to the hospital with the complaint of diarrhea. of these, 17 were found to be sh. flexneri, and 7 sh. boydii. antibiotic susceptibility tests indicated that all of the 24 isolates probably had multiple resistance factors. twenty three of 24 strains were found to be resistant to ampicillin. this may be important from a therapeutic point of view.19853892249
[the shigella flexneri epidemic of 1983/84: the lesson to be learned from this]. 19853892308
[antibiotic resistance in the isolates of shigella flexneri type 2 associated with the "shrimp epidemic"]. 19853892309
[5 cases of reactive arthritis following a shigella flexneri epidemic in the netherlands]. 19853892310
[bacillary dysentery in utrecht: 2 epidemics]. 19853892311
[clinical observations during an epidemic caused by shigella flexneri]. 19853892312
[detection of shigella antigens in the feces of patients with acute intestinal diseases using a coagglutination reaction].a total of 113 patients with acute intestinal diseases have been examined with the use of the coagglutination test. 84.95% of the patients showed the presence of different shigella antigens. in patients with bacteriologically confirmed dysentery the corresponding shigella antigens were detected in 96.97% of cases in s. sonnei dysentery, in 90% of cases in s. flexneri dysentery, in 75% of cases in s. newcastle dysentery and in 100% of bases in s. boydii dysentery. in 81.6% of patients with acute ...19853892986
[possible production of 2 cytotoxins by a strain of escherichia coli]. 19853893462
humoral response of the mouse to treponema pallidum.to investigate the development of the humoral immune response of mice to infection with treponema pallidum, balb/c and c57bl mice were injected intradermally with 10 x 10(6) virulent organisms. serum samples were taken from the mice at weekly intervals after infection and used in the electrophoretic transblotting technique to detect t pallidum and t phagedenis biotype reiter antigens. the serum samples taken from infected mice at 21, 42, 84, and 126 days after infection recognised two to 15 t pa ...19853894212
current diagnosis of infective endocarditis.an analysis was made of 91 cases of infective endocarditis (ie) with regard to causative organisms and their sensitivities to various antibiotics, the clinical features of the disease, the laboratory test results and other items were important in establishing a diagnosis of ie. the number of cases of ie has shown a tendency to increase in recent years, particularly in the number of elderly patients, and the ratio of total cases consisting of prosthetic valve endocarditis (pve) has shown a sharp ...19853894710
neonatal shigellosis with bowel perforation. 19853895181
a marker of early amacrine cell development in rat retina.a monoclonal antibody, hpc-1, labels only amacrine and displaced amacrine cells in adult rat retina. reactivity with displaced amacrine cells was demonstrated by double-label immunofluorescence with hpc-1 and ganglion cell-specific reagents. hpc-1 antibody reacts with a polypeptide of apparent molecular weight 35,000. hpc-1 antibody labels migrating amacrine cells in late embryonic retinas. the results define cell-specific gene expression in relation to migration of one subclass of cns neurons.19853896407
[acute alithiasic cholecystitis caused by infectious gastroenteritis]. 19853897740
[structural characteristics of the remote interaction of shigella and salmonella with enterocytes of experimental animals].the electron-microscopic analysis of the adhesion of shigella and salmonella nonfimbriated strains to the surface of enterocytes of laboratory animals in vivo and in vitro has revealed the presence of structural links, whose formation occurs with the participation of the glycocalix of the interacting cells and the extracellular gel.19853898674
plasmid-mediated drug resistance of shigellae in kuwait.of 153 clinical isolates of shigellae examined, 64.7% belonged to shigella flexneri, 18.9% to sh. sonnei, 11.8% to sh. boydii and 4.6% to sh. dysenteriae. part of these isolates were resistant to sulfamethoxazole and streptomycin (88.2% each), ampicillin (66.7%), tetracycline (63.4%) and co-trimoxazole (43.1%), with levels of resistance (mic50 and mic90) being invariably high. resistance to three or more drugs (multidrug resistance) was seen in 77.8% of the isolates. all the 25 strains examined ...19853899007
[interrelation of erythropoiesis and lymphopoiesis in experimental infectious processes and in viral leukemogenesis].interrelation of erythropoiesis and immune response was studied in mice of various lines infected with mycoplasma species, shigella flexneri 2a and rauscher leukemia virus (r-mlv). intensity of erythropoiesis was estimated by the endocolonization data of sublethally irradiated mice and 59fe incorporation, while immune reactivity--by generation of splenic antibody-forming cells in response to immunization with sheep erythrocytes. the inverse correlation between the ability of infectious agents to ...19853899611
four cases of shigella septicemia in israel.four cases of shigella septicemia are presented. in two children infection was caused by shigella flexneri and in two adults, who had underlying diseases which caused immunosuppression, by shigella sonnei and shigella schmitzi. all four patients responded to intravenous antibiotic therapy. in one patient the organism persisted in the stool, but was eliminated after oral administration of chloramphenicol. shigella septicemia is not uncommon and blood cultures should be obtained in suspected cases ...19853899637
hla-b27 and clinical aspects of ankylosing spondylitis: results of prospective studies. 19853899917
shigellosis (antibiotic resistance and transfer of r-factor). 19853900357
[functional status of monocytes of the peripheral blood in dysentery]. 19853900573
comparative biology of intracellular parasitism. 19853900672
[effectiveness of thymalin and prodigiozan in the complex treatment of patients with dysentery]. 19853901509
sensitivity to bile salts of shigella flexneri sublethally heat stressed in buffer or broth.batch cultures of shigella flexneri m4243 were grown at 37 degrees c in broth to early stationary phase, washed, and heated at 50 degrees c in 0.1 m phosphate buffer (ph 7.0). cells were surface plated on a tryptic phytone glucose agar (tpga), tpga with 0.15 or 0.85% bile salts no. 3 (tpga-bs 0.15 or tpga-bs 0.85), or tpga with 0.25 or 0.50% sodium deoxycholate (tpga-dc 0.25 or tpga-dc 0.50). cells sampled after no heating produced colony counts on tpga-bs 0.85 or on tpga-dc 0.50 that were no mo ...19853901919
localization and synthesis of the tumor protein oncomodulin in extraembryonic tissues of the fetal rat.the calcium-binding protein oncomodulin, previously found only in tumors, has been detected during rat development. specific antisera to purified rat hepatoma oncomodulin (mw 11,500) were used to detect oncomodulin by radioimmunoassay (ria) and by avidin-biotin-peroxidase complex (abc) immunohistochemistry. using ria, oncomodulin was found to increase in placenta from below the limits of detection (2 ng/mg protein) on day 13 to approximately 25 ng/mg on day 16 of pregnancy, and to remain high th ...19853902538
susceptibility and hla-b27 in post-dysenteric arthropathies.a recent outbreak of bacillary dysentery in the netherlands revealed that, despite the close association of hla-b27 with post-dysenteric or reactive arthritis (rea), not even in one family did all hla-b27 positive patients infected by an arthritogenic bacterium, develop rea. this dissociation shows that additional factors beside b27 may determine susceptibility to rea.19853902627
cyclosporine and partial liver allotransplants in a simplified rat model.we designed a simplified rat model to assess the effects of cyclosporine (csa) on liver transplants. auxiliary liver grafts consisting of 20 per cent of the whole liver were supplied with portal inflow and the bile was drained into the stomach. the cuff technique was used routinely for both end-to-end and end-to-side venous anastomoses. the host liver was totally deprived of portal inflow. two inbred strains of rats, lew and f344, were used for isograft (lew----lew) and allograft (f344----lew). ...19853903301
[functional status of the small intestine in dysentery sonnei and flexneri]. 19853904028
decreased chemiluminescent associated phagocytic response of peripheral blood mononuclear cells to chlamydia trachomatis in patients with hla-b27+ anterior uveitis.the chemiluminescent (cl) associated phagocytic response of peripheral blood monocytes to two serovars of chlamydia trachomatis, shigella flexneri and zymosan was assessed in a group of 26 patients with anterior uveitis (au). hla-b27+ patients with au, when compared to hla-b27- patients with au and appropriate controls, had a significantly decreased cl response to c. trachomatis but no difference between groups in the response to s. flexneri and zymosan. the decreased chemiluminescent (phagocyti ...19853904888
identification and antigenic characterization of virulence-associated, plasmid-coded proteins of shigella spp. and enteroinvasive escherichia coli.seven plasmid-coded polypeptides, designated a through g, were identified by two-dimensional nonequilibrium ph gradient electrophoresis of radiolabeled extracts from minicells of virulent shigella flexneri serotypes 2a and 5 and enteroinvasive escherichia coli o143. these polypeptides were deemed to be products of 140-megadalton (mda) virulence-associated plasmids because they were not synthesized in minicells which were not harboring a 140-mda plasmid or in minicells which were carrying an f la ...19853905608
characterization of monoclonal antibodies against shiga-like toxin from escherichia coli.three monoclonal antibodies, designated mab 16e6, mab 13c4, and mab 19g8, were produced which recognize shiga-like toxin (slt) from escherichia coli. all three monoclonal antibodies neutralized the cytotoxicity of e. coli slt and were able to immunoprecipitate intact labeled toxin with staphylococcus aureus protein a. the three antibodies were of the g1 heavy and kappa light chain classes. mab 16e6 bound to the b subunit of slt in western blots and also neutralized the lethality of the toxin for ...19853905611
interspecific reconstitution of maltose transport and chemotaxis in escherichia coli with maltose-binding protein from various enteric bacteria.in escherichia coli, the periplasmic maltose-binding protein (mbp), the product of the male gene, is the primary recognition component of the transport system for maltose and maltodextrins. it is also the maltose chemoreceptor, in which capacity it interacts with the signal transducer tar (taxis to aspartate and some repellents). in studies of the maltose system in other members of the family enterobacteriaceae, we found that mbp is produced by salmonella typhimurium, klebsiella pneumoniae, ente ...19853905762
changing pattern of resistant shiga bacillus (shigella dysenteriae type 1) and shigella flexneri in bangladesh.shigella dysenteriae type 1 (shiga bacillus) has made a dramatic comeback in bangladesh after 10 years when shigella flexneri was the dominant serogroup. whereas s. flexneri showed little increase in resistance to the commonly used antimicrobial agents--namely, trimethoprim-sulfamethoxazole (tmp-smx) and ampicillin-over the years, s. dysenteriae type 1 underwent rapid changes with regard to sensitivity pattern during the last two years. the first tmp-smx-resistant strain of s. dysenteriae type 1 ...19853905980
[3-year study of shigellosis epidemic in rwanda, central africa. problems of public health and bacteriological aspects].since 1979, the lakes region (kivu in zaïre, western uganda, rwanda, burundi) has been stricken by a bacillary dysentery epidemic at s. dysenteriae type 1. supposed to be extinct since the 1950s., this bacillus has revealed a very noticeable virulence as well by the number of registered cases (524/100.000 in 1983 at ruhengeri-rwanda) as its fast break through. demographic density (from 400 to 600/km2) has played an important role and has facilitated the transition toward epidemicity. systematic ...19853906345
[the nature of the cyclic course of the epidemiological process in dysentery]. 19853907219
determination of nanogram quantities of vanadium in biological material by isotope dilution thermal ionization mass spectrometry with ion counting detection. 19853907412
refined structure of alkaline phosphatase from escherichia coli at 2.8 a resolution.the structure of alkaline phosphatase from escherichia coli has been determined to 2.8 a resolution. the multiple isomorphous replacement electron density map of the dimer at 3.4 a was substantially improved by molecular symmetry averaging and solvent flattening. from these maps, polypeptide chains of the dimer were built using the published amino acid sequence. stereochemically restrained least-squares refinement of this model against native data, starting with 3.4 a data and extending in steps ...19853910843
n-methyl-l-glutamate synthase. 19853911004
[study of the sensitivity of anaerobic bacteria using 2 dilution technics].we studied forty-seven anaerobic strains recovered from blood cultures or pus from deep infections over three months. antibiotic sensitivity was tested using two dilution techniques. for both, a standardized, controlled inoculum was used and strains with known susceptibilities were included. the first method consisted of dilution of antibiotics in schaedler broth and mic determination using microplates. in the second method, dilutions in wilkins-chalgren broth with 1.5 g/l agar and atb-api plate ...19853911155
photochemical modifications of lac repressor: effect of effectors binding on tryptophan photooxidation. 19853911222
[significance of isolating shigella under epidemiological circumstances]. 19853911318
viruses and immune reactions in the liver.the immunopathology of hepatitis b and delta virus infections of the liver are reviewed. it is clear there are several antigen/antibody systems of importance in acute and chronic hbv infection. antibodies to hbs, hb core/hbe and antibodies to dane specific determinants are involved in virus neutralisation. elimination of virus infected hepatocytes is dependent on recognition of viral determinants in association with hla proteins on the infected hepatocytes by cytotoxic t cells. the hla protein d ...19853911368
the potential dependence of the intestinal na+-dependent sugar transporter.the unidirectional influx of the lipophilic cation tetraphenylphosphonium (tpp+) into isolated intestinal epithelial cells exhibits a marked dependence on the membrane potential (delta psi) maintained by or experimentally imposed on these cells. by taking advantage of this fact, we have described a "crossover" procedure that allows the relative permeability of a cation and anion pair to be determined. measurements of such relative permeabilities permits diffusion potentials of defined magnitude ...19853911844
[preventing bacillary dysentery with magnetized drinking water]. 19853912058
[epidemiologic survey of an outbreak of food-borne bacillary dysentery]. 19853912060
plasmid characterization of shigella spp. isolated from children with shigellosis and asymptomatic excretors.strains of shigella dysenteriae type 1 and sh. flexneri isolated during 1981-82 from children with shigellosis and also from asymptomatic excretors were examined for drug resistance and for the presence of plasmids. shigella strains isolated from dysenteric children showed multiple plasmid bands. thirty-eight percent of the strains transferred the drug resistance factor(s), either partially or fully to a recipient escherichia coli k12 strain. plasmids in the molecular weight range from between 4 ...19853912364
shigella flexneri bacteraemia in a patient with acquired immune deficiency syndrome. 19853913261
studies on specificity of protection induced by immunization with outer membrane proteins of shigella.immunization of c3h/hej mice with outer membrane proteins (omp) and with peptidoglycan associated proteins (pgp) isolated from shigella flexneri 3a and from shigella sonnei phase i protected the animals against lethal dose of homologous and heterologous bacteria and against various serotypes of shigella flexneri. neither of the protein preparations protected the animals against challenge with escherichia, klebsiella, citrobacter, salmonella, serratia, proteus and pseudomonas. omp preparations ho ...19853914866
transfer of immunity by means of spleen cells from mice immunized with outer membrane proteins of shigella flexneri.intraperitoneal immunization of mice with a single dose (5 micrograms) of outer membrane proteins (omp) of shigella flexneri was found to evoke in the spleen the appearance of cells by means of which immunity to lethal dose of shigella could be transferred into other mice. active cells capable of transferring immunity appeared in the spleen of the animals as early as on day 3, reached the strongest protective activity on day 4 and disappeared on day 8 after immunization. active cells from animal ...19853914867
[emergence of resistance to antibiotics in enteropathogens. implications and speculations]. 19853915679
emergence of sulfamethoxazole-trimethoprim resistant shigella flexneri in northeastern brazil.in contrast to prior experience in this setting, three of four shigella flexneri strains recently isolated from patients in northeastern brazil with acute inflammatory diarrhea were found to be resistant to sulfamethoxazole, trimethoprim and the combination in vitro. we performed mating studies to determine if the resistance was transferable, and then isolated and characterized plasmid dna from the resistant shigella isolates, other resistant enterobacteriaceae isolated simultaneously from the s ...19853915680
systemic mycosis in scottish red deer (cervus elaphus).the pathological features of 10 cases of systemic infection of young red deer by fungi morphologically identified as phycomycetes are described. the most frequently affected organs were the kidneys, followed by liver and central nervous system. the fungi stimulated an acute pyogenic inflammatory reaction and a phagocytic giant cell response. vasculitis with thrombosis and spread of fungi to the surrounding tissue was a common finding. culture was attempted in 4 cases; one yielded absidia, 2 aspe ...19853915751
[shigellemia in a patient with the septic variant of the course of dysentery (clinical case)]. 19853916350
cell-mediated immunity in type i (insulin-dependent) diabetes of man and the bb rat. 19853916413
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