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immunoblotting procedure for the analysis of electrophoretically-fractionated bacterial lipopolysaccharide.a procedure is described for the efficient transfer of fractionated bacterial lipopolysaccharide (lps) from sds-polyacrylamide gels to nitrocellulose filters, and its subsequent display by a peroxidase-linked antibody. the method is sensitive, and reveals and resolves high molecular weight lps molecules having side chain lengths of up to and greater than 30 repeat units. it is useful for the rapid analysis of lps in bacterial outer membrane preparations.19846084988
drug resistance in shigella dysenteriae, s flexneri and s boydii in england and wales: increasing incidence of resistance to trimethoprim.a total of 2753 strains of shigella belonging to subgroups a, b, and c that were isolated from patients in england and wales during the period from 1979 to mid-1983 were studied. of these, 1690 (61%) were from patients recently returned from abroad or in contact with recent travellers, and 760 (45%) of these affected travellers from the indian subcontinent. the number of strains resistant to sulphonamides and streptomycin remained at a high level throughout (average 76% and 72% respectively). re ...19846423079
[clinical and laboratory studies on acute bacterial diarrhea]. 19846437636
the leukemoid reaction in shigellosis.leukemoid reactions occurred in 136 patients (3.8%) hospitalized with shigellosis in bangladesh. sixty-eight percent of the patients with leukemoid reactions were children less than 4 years old. when compared with patients without leukemoid reactions, the leukemoid reactions were significantly associated with children aged less than 10 years. the most common serotype of shigella in the patients with leukemoid reactions was shigella dysenteriae 1, isolated from 96 patients (71%), whereas the most ...19846695872
mixed connective tissue disease presenting as a left sided pleural effusion.mixed connective tissue disease (mctd) usually occurs in women aged 13-50 years. pleural effusion is rarely the presenting feature of this disease. the case is reported here of a male patient with mctd who presented at the age of 79 years with a left sided pleural effusion.19841444629
extracoronal amalgam restorations utilizing available tooth structure for retention. 1984264320
the management of ruptured intracranial aneurysms. 1984263409
[pregnancy and the single mother]. 1984261420
cellular mechanism of the relationship between myocardial force and frequency of contractions. 19853331452
effective induction immunosuppression for cadaver renal transplantation at the st. francis regional medical center.the okt3 induction protocol, when compared to a conventional drug protocol, resulted in an improvement in both short- and long-term patient and graft survival, especially in patients receiving a primary transplant. the 1-year allograft survival in primary transplants receiving okt3 induction was 91% and the t1/2 of 13.5 years. this was accomplished while still being able to minimize the total drug dose of aza, pred, and csa, thereby minimizing clinical complications. the use of okt3 did not incr ...19852129408
when is treatment economically justified? 19852041026
pharmacotherapy i: non-narcotic analgesics. 1985271621
comparison of minimum inhibitory concentration of water soluble extracts of eugenia jambolana lam. (fam. myrtaceae) barks of different ages on dysentery and diarrhoea forming micro - organisms.a preliminary investigations was carried out to study the antibacterial activity of the water soluble extracts of five and ten years old barks of eugenia jambolana lam. (fam. myrtaceae) on dysentery and diarrhoea forming micro organisms. it was observed that the barks of young plants have a better inhibitory effect on micro - organisms like salmonella viballerup, shigella dysenteriae 10, shigella boydii 5, sgigella dysenteriae 2.198522557509
[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
4-hydroxyalk-2-enals are substrates for glutathione transferase.the 4-hydroxyalk-2-enals are established products of lipid peroxidation that are conjugated with intracellular glutathione. cytosolic glutathione transferases from rat liver were shown to give high specific activities with 4-hydroxynonenal and 4-hydroxydecenal. the isoenzyme giving the highest specific activity was glutathione transferase 4-4. the rate of the spontaneous conjugation reaction is negligible in comparison with the rate calculated for the cellular concentration of the glutathione tr ...19853838159
shigella toxin and the pathogenesis of shigellosis.shigella dysenteriae 1 produces a periplasmic protein with multiple toxic effects in vivo and in vitro. these include neurotoxicity, cytotoxicity and enterotoxicity, as well as the ability to inhibit cell-free protein synthesis. the purified toxin is a protein of relative molecular mass (mr) 64 000. it is composed of one catalytically active a subunit (mr = 32 000) that inhibits protein synthesis, and a complex of five b monomers (mr approximately 6500 each). studies using subunit-specific antib ...19853847336
theoretical mechanisms for synthesis of carcinogen-induced embryonic proteins: xiv. mutational and non-mutational mechanisms as subsets of a more general mechanism. part c. a defined cancer mutation.the results of applying a mechanism of ethionine-induced embryonic gene derepressions to explain similar features found in hereditary tyrosinemia have been extended to a well defined cancer mutation. in all three cases, the described mechanism is compatible with the explanation for the etiology of embryonic like phenotypic expressions in cells and potentially for the carcinogenic process. the essence of the formulated process for a human bladder carcinoma mutation in the ras gene for a protein p ...19853853079
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
[the development of the human dentition. iv]. 19853867519
[the development of the human dentition. iv]. 19853867519
[different clinical and prognostic aspects of angina pectoris in unstable phase].the purpose of this study was to focus on the clinical and angiographic characteristics of 113 patients with crescendo angina (group i) as compared to 187 patients with angina of new onset (group ii), selected from a series of 474 consecutive subjects, admitted to our clinic between january 1976 and july 1983 because of recurrent episodes of spontaneous angina, who underwent cardiac catheterization and coronary angiography within one month of hospitalization. group i patients showed a greater in ...19853878310
shiga-like cytotoxin production by enteropathogenic escherichia coli serogroups.the mechanism by which enteropathogenic escherichia coli (epec) cause disease remains to be defined. we studied epec and non-epec strains of e. coli from stool specimens obtained from infants and adults for production of shiga-like cytotoxin. although it was common for healthy infants and adults to have cytotoxin-producing e. coli as part of the fecal flora, shiga-like cytotoxin was detected more commonly and in greater amounts among epec than among other fecal e. coli. these results suggest a r ...19853880727
brain oedema following brain ischaemia and the influence of therapy. 19853881111
addition of three new serotypes of shigella boydii to the shigella schema.no new serotypes have been added to the shigella schema since 1958, although several provisional serotypes have been described. we conducted biochemical and serological studies on three provisional shigella boydii serotypes. four strains of serotype 2710-54 from four widely separated countries, 7 strains of serotype 3615-53 from three different countries, and 31 strains of serotype 1344-78 (e10163) from six different countries were included. reactions of all three serotypes were consistent with ...19853881469
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
a new provisional serovar of shigella dysenteriae.bacterial isolates obtained in israel from stool cultures of 17 sporadic cases of acute diarrhea during the years 1972 to 1980 and from 14 patients involved in an institutional outbreak in 1984 are described. these cultures gave the biochemical reactions and pathogenicity tests characteristics of the genus shigella but failed to agglutinate, living or boiled, in any of the recognized or provisional shigella antisera. all 31 cultures were biochemically and serologically identical, and owing to th ...19853882749
plasmid characterization of drug-resistant shigella dysenteriae 1 from an epidemic in central africa.a widespread epidemic of severe dysentery in zaire and neighbouring central african countries was caused by a multiply drug-resistant strain of shigella dysenteriae 1. early isolations were resistant to ampicillin, chloramphenicol, streptomycin, sulphonamides and tetracyclines (r-type = acssut). later in the epidemic strains resistant to trimethoprim (tm) became prevalent and a few strains resistant to kanamycin (k) or nalidixic acid were also isolated. all resistances except nalidixic acid were ...19853886782
shiga toxin--an expanding role in the pathogenesis of infectious diseases. 19853886803
[role of the conjugative transfer of r-plasmids in competitive interactions between plasmid-containing and plasmid-free strains of escherichia coli in continuous culture].competition of the plasmid-containing strain c600 (rp4) (pbs94) of e. coli and the plasmid-free strain c600 rifr of e. coli in chemostatic and ph-static continuous cultures resulted in displacement of the plasmid-free strain in spite of its higher specific growth rate. conjugative transfer of rp4 and pbs94 plasmids into the cells of the plasmid-free strain was observed in the experiments. competition of strains c600 (pbs94) (rp4 tra-) and c600 rifr in the chemostatic culture in the absence of th ...19853888095
properties of rat liver signal peptidase reconstituted into liposomes.edta/kcl- or pyrophosphate-treated rough microsomes of rat liver clearly showed the co-translational cleavage of pre-human placental lactogen and translocation of the product into membrane vesicles. the signal peptidase fraction was isolated by chromatography on sephacryl s-300 of deoxycholate-treated membranes and reconstituted into liposomes by dialysis or by the biobeads sm-2 method. assay of the signal peptidase activity was performed with pre-human placental lactogen synthesized by the reti ...19853888971
treatment of severe bacillary dysentery with trimethoprim alone.trimethoprim (300 mg twice daily for five days) and co-trimoxazole (two tablets twice daily for five days) were compared as treatment for adult patients with severe shigellosis in rwanda. excellent bacteriological and clinical results were obtained with both regimens, with the exception of patients infected with a trimethoprim-resistant strain of shigella dysenteriae type 1. since only 20 patients were investigated, the conclusions of our study do not reach statistical significance. before recom ...19853890282
an epidemic of bacillary dysentery at raipur. 19853891837
enzyme immunoassay of human protein c by using monoclonal antibodies.an enzyme-linked immunosorbent assay (elisa) for measuring human protein c by using two monoclonal antibodies directed toward the heavy chain of protein c is reported. this assay enabled the determination of protein c in concentrations of 10 to 400 ng/ml in less than 3 hours with a single antigen-antibody reaction. within-run and between-run coefficients of variation were less than 8%. the mean concentrations of protein c in plasma of 42 normal subjects, 24 patients with liver disease, 27 with d ...19853895562
transformation of trypomastigote forms of trypanosoma cruzi into activators of alternative complement pathway by immune igg fragments.in this report we examined the capacity of immune igg fragments to prepare trypomastigote bloodstream forms (tbf) of trypanosoma cruzi for lysis. f(ab')2 fragments were capable of presensitizing tbf for complement (c) lysis, thus excluding the participation of fc domains in the c activation process. an intact hinge region of the igg molecule was not involved either, since the corresponding fab' were almost as active as the original molecules in preparing tbf for lysis. fab also retained such act ...19853898353
transformation of trypomastigote forms of trypanosoma cruzi into activators of alternative complement pathway by immune igg fragments.in this report we examined the capacity of immune igg fragments to prepare trypomastigote bloodstream forms (tbf) of trypanosoma cruzi for lysis. f(ab')2 fragments were capable of presensitizing tbf for complement (c) lysis, thus excluding the participation of fc domains in the c activation process. an intact hinge region of the igg molecule was not involved either, since the corresponding fab' were almost as active as the original molecules in preparing tbf for lysis. fab also retained such act ...19853898353
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
shigellosis (antibiotic resistance and transfer of r-factor). 19853900357
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
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
the changing pattern of resistance to ampicillin and co-trimoxazole in shigella serotypes in bangalore, southern india. 19853905991
[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
determination of nanogram quantities of vanadium in biological material by isotope dilution thermal ionization mass spectrometry with ion counting detection. 19853907412
outbreak of shigella dysenteriae type-1 dysentery in himachal pradesh--aetiologic investigation in distt: shimla. 19853908554
[the use of an enzymatic preparation called alcalase 60 l]. 19853910192
mechanism of sbcb-suppression of the recbc-deficiency in postreplication repair in uv-irradiated escherichia coli k-12.the mechanism by which an sbcb mutation suppresses the deficiency in postreplication repair shown by recb recc mutants of escherichia coli was studied. the presence of an sbcb mutation in uvra recb recc cells increased their resistance to uv radiation. this enhanced resistance was not due to a suppression of the minor deficiency in the repair of dna daughter-strand gaps or to an inhibition of the production of dna double-strand breaks in uv-irradiated uvra recb recc cells; rather, the presence o ...19853911022
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
[epidemiological analysis of the outbreak of bacillary dysentery in xinjiang]. 19853915444
pressure- and temperature-dependent adhesion of pseudomonas aeruginosa to hep-2 cells.pseudomonas aeruginosa bacteria adhere to human epitheloid (hep-2) cells in culture. under normal atmospheric conditions (1 ata), this adhesion increased significantly when the temperature rose from 22 to 37 degrees c. under hyperbaric atmosphere (= air, 7 ata) conditions, a similar, significant enhancement of bacterial adhesion to the cells was noted when the temperature rose. if the temperature was kept stable at 22 or 37 degrees c and the pressure was increased from 1 to 7 ata, a pressure-ind ...19853925713
[virulence of shigella: epithelial cell invasiveness and other dysentery-producing factors]. 19853938489
characterisation of a dictyostelium discoideum dna fragment coding for a putative trnavalguu gene. evidence for a single transcription unit consisting of two overlapping class iii genes.a genomic dna fragment from dictyostelium discoideum was characterized. this dna, although 74% d(a + t)-rich, codes for a putative trnavalguu. the trnaval gene overlaps at its 5' half with another rna polymerase iii transcription unit. this rna polymerase iii transcription unit can be folded into a trna-like shape and is comprised of significant amounts of invariant and semi-invariant nucleotides present in all eukaryotic trnas. this unit contains the two promoter blocks defined for rna polymera ...19853967666
noninvasive measurement of pressure/volume characteristics in human limb veins by electrical admittance plethysmography. 19853974317
effect of bromocriptine on serum pth, calcium and phosphate levels in azotemic rats.the dopamine agonist, bromocriptine, was studied with respect to its effects on pth secretion and calcium homeostasis in sprague-dawley rats made azotemic by either total or subtotal nephrectomy. the oral or intraperitoneal administration of 0.25 mg of bromocriptine resulted in a significant increase in the serum calcium concentration when compared to animals given placebo. bromocriptine produced no significant change in the bun or the serum concentrations of creatinine, inorganic phosphate or p ...19853979799
multiaxonal horizontal cells in the retina of the tree shrew, tupaia glis.the retinas of most vertebrates contain two or more morphologically distinct types of horizontal cell, and usually one of these types lacks an axon. among mammals, in which two types are observed, primates are exceptional in that both types of horizontal cell have axons. it then seemed of interest to study the horizontal cells of tree shrews (tupaia glis), insectivores thought to be closely related to primates. golgi impregnations of whole, flat-preparations revealed two types of horizontal cell ...19853980782
observations on facial nociception in a monkey after destruction of the rostral part of the trigeminal sensory nuclear complex.facial sensibility was assessed in a cynomolgus monkey in whom the trigeminal main sensory nucleus and the rostral part of the trigeminal nucleus oralis on one side had been destroyed. the animal responded equally to noxious mechanical stimuli applied to the two sides of the face; no deficiency in nociception could be detected. this finding suggests that the synaptic connections made by nociceptor afferents from the face in rostral parts of the trigeminal sensory nuclear complex are not essentia ...19853982839
epinephrine and norepinephrine syntheses are regulated by a glucocorticoid receptor-mediated mechanism in the bovine adrenal medulla.the bovine adrenal medulla was investigated regarding the presence of glucocorticoid binding protein and the increases in ornithine decarboxylase (odc) activity and epinephrine and norepinephrine by dexamethasone. scatchard analysis of specific cytosol [3h] dexamethasone-binding study indicated a single class of high affinity (kd, 35 +/- 5 nm) and limited binding sites (150 +/- 26 fmoles/mg protein). competition studies of various steroids indicated a high affinity for dexamethasone and hydrocor ...19853990518
[persistent chlamydia infection in cell culture]. 19853993192
the acquired immunodeficiency syndrome (aids) in denmark. a report from the copenhagen study group of aids on the first 20 danish patients.twenty danish patients with the acquired immunodeficiency syndrome (aids) had been diagnosed by january 1984, 14 of them after 1982. eighteen patients were male homosexuals, 8 of whom had visited the usa after 1979, 2 were heterosexual males with a history of sexual contacts in central africa, suggesting a transmission of aids from woman to man. aids has not been observed in drug abusers, hemophiliacs or transfused non-risk persons in denmark. the clinical picture varied according to the presenc ...19853993435
[24-hour energy metabolism in the human: circadian rhythm, relation to body weight and nutrition].in 7 men with normal weight and 9 man with overweight and healthy metabolism the resting and fasting energy expenditure was indirectly calorimetrically pursued in the open system over 24 hours. the total energy expenditure over 24 hours revealed an ascertained dependence on body-weight and nutrition. the persons with overweight had a higher absolute energy expenditure, however, the activity of the energy metabolism of the body mass free from fat and the active body mass, respectively, decreased ...19854013439
[trial of an erythrocyte antigenic diagnostic agent for detecting antibodies to coxiella burnetii].a new method for the preparation of q-fever erythrocyte antigenic diagnosticum, adaptable to large-scale production, has been developed, and the diagnosticum thus obtained has been found to be highly specific and sensitive. the combined use of the complement fixation and passive hemagglutination tests enhances the effectiveness of the serological study, as it not only ensures a more complete detection of antibodies to c. burnetii, phase i, in humans and cattle, but also gives more precise indica ...19854013575
adaptation of skeletal muscle energy metabolism to repeated hypoxic-normoxic exposures and drug treatment.muscular glycolytic fuels, intermediates and end-products (glycogen, glucose, glucose-6-phosphate, pyruvate, lactate), krebs cycle intermediates (citrate, alpha-ketoglutarate, succinate, malate), related free amino acids (glutamate, alanine), ammonia, energy store (creatine phosphate), energy mediators (atp, adp, amp) and energy charge potential were evaluated. furthermore the maximum rate (vmax) of the following muscular enzyme activities was evaluated in the crude extract and/or mitochondrial ...19854015259
adaptation of skeletal muscle energy metabolism to repeated hypoxic-normoxic exposures and drug treatment.muscular glycolytic fuels, intermediates and end-products (glycogen, glucose, glucose-6-phosphate, pyruvate, lactate), krebs cycle intermediates (citrate, alpha-ketoglutarate, succinate, malate), related free amino acids (glutamate, alanine), ammonia, energy store (creatine phosphate), energy mediators (atp, adp, amp) and energy charge potential were evaluated. furthermore the maximum rate (vmax) of the following muscular enzyme activities was evaluated in the crude extract and/or mitochondrial ...19854015259
quantitative determination of tramadol in human serum by gas chromatography-mass spectrometry.a gas chromatographic-mass spectrometric method for the quantitative determination of tramadol in human serum, plasma or whole blood samples is described. the method involves the use of [2h2, 15n]tramadol hydrochloride as an internal standard and chemical ionization with isobutane, employing single-ion monitoring for quantification. it is specific, sensitive and precise, and has high accuracy. the within-run coefficient of variation is about 1% between 25 and 200 ng/ml and 1.8-2.9% at the lowest ...19854019697
[mechanism of the anti-arrhythmic action of phosphocreatine in acute myocardial ischemia].the association between phosphocreatine's antifibrillatory action and its effect on the excitement propagation processes in the ischemic area was investigated under acute coronary arterial occlusion in dogs. ischemia considerably reduced the amplitude, and increased the duration and time of onset, in local electrograms, and provoked cardiac fibrillation at the time of occlusion or during the recovery of coronary flow. a single intravenous injection of 300 mg/kg phosphocreatine eliminated cardiac ...19854021280
[characteristics of monosynaptic connections between neurons of the callosal system and specific thalamic nuclei].in the sensorimotor cortex of awake rabbits monosynaptic afferent and efferent connections of callosal neurons (cn) with ipsilateral specific thalamic nuclei (ventral posterolateral, ventral posteromedial, ventral lateral and anteroventral nuclei) were analyzed by electrophysiological method and compared with those of target-units of callosal fibres (tu). it was demonstrated that cn and tu differed in their monosynaptic inputs from the thalamus and in their axons projecting to these structures a ...19854022178
[characteristics of a cell line obtained from a human hypernephroma].a stable tumorigenic cell line has been obtained from the human hypernephrome. the culture grew as monolayers of large polygonal cells with foamy cytoplasm and 1-2 nucleoli. the cells formed monolayer after the third day after planting into flask and then formed multilayered growth. the electron microscopic studies of hypernephrome sections revealed the dark and light cells. the hypernephrome cells have characteristics of tumor cells. on the 200th passage the cells are aneuploid with a model num ...19854027291
presaccadic 'spike' potential: investigation of topography and source.approximately 15-30 ms before a saccade, a large-amplitude, relatively short duration potential whose source has not previously been determined with certainty, can be recorded from the scalp in man. we have measured the surface topography of this potential during horizontal saccades in normal subjects and have found it to be maximal near the eye on the side ipsilateral to the direction of the saccade. dipole modelling predicts a source near the eye ipsilateral to the direction of gaze, and the a ...19854027625
presaccadic 'spike' potential: investigation of topography and source.approximately 15-30 ms before a saccade, a large-amplitude, relatively short duration potential whose source has not previously been determined with certainty, can be recorded from the scalp in man. we have measured the surface topography of this potential during horizontal saccades in normal subjects and have found it to be maximal near the eye on the side ipsilateral to the direction of the saccade. dipole modelling predicts a source near the eye ipsilateral to the direction of gaze, and the a ...19854027625
rapid extraction and purification of diethylstilboestrol in bovine urine hydrolysates using reversed-phase c18 columns before determination by radioimmunoassay. 19854030972
systemic complement activation, lung injury, and products of lipid peroxidation.previously we have demonstrated that systemic activation of the complement system after intravenous injection of cobra venom factor (cvf) results in acute lung injury as reflected by increases in the vascular permeability of the lung as well as by morphologic evidence of damage to lung vascular endothelial cells. in using the vascular permeability of the lung as the reference, the current studies show a quantitative correlation between lung injury and the appearance in plasma of lipid peroxidati ...19854031060
role of uricase in the triggering of germination of bacillus fastidiosus spores.the likelihood that uric acid was the only compound capable of triggering germination of bacillus fastidiosus spores was reinforced by the finding that ureidoglycollic acid, urea, nh4cl, 2,8-dihydroxypurine and a combination of l-alanine and o-carbamoyl-d-serine were ineffective as germinants. uric acid-triggered germination of b. fastidiosus was prevented by a range of inhibitors that also inhibited uricase activity in dormant spore extracts. o2 uptake during germination started immediately aft ...19854038258
three-dimensional image analysis of the complex of thin filaments and myosin molecules from skeletal muscle. v. assignment of actin in the actin-tropomyosin-myosin subfragment-1 complex.to assign the actin molecule in the three-dimensional image of the actin-tropomyosin-myosin subfragment-1 (actin-tm-s1) complex, the three-dimensional image of the actin-tropomyosin complex was correlated to that of actin-tm-s1. to assess the similarity of two structures in a quantitative manner, we used a normalized cross-correlation function ("similarity function"). the calculation of similarity indicated that domain a and domain b defined in (1, 2) correspond to actin-tropomyosin. this assign ...19854039721
local cerebral glucose utilization in normal female rats: variations during the estrous cycle and comparison with males.the quantitative 2-[14c]deoxyglucose autoradiographic method was used to study the fluctuations of energy metabolism in discrete brain regions of female rats during the estrous cycle. a consistent though statistically nonsignificant cyclic variation in average glucose utilization of the brain as a whole was observed. highest levels of glucose utilization occurred during proestrus and metestrus, whereas lower rates were found during estrus and diestrus. statistically significant fluctuations were ...19854040921
[mechanical injector for angiography]. 19854051773
determination of zinc in whole blood, plasma and serum using zeeman effect flame atomic absorption spectroscopy.methods are presented for the determination of zinc in whole blood, plasma and serum using zeeman effect flame atomic absorption spectroscopy and a flame microsampling funnel. whole blood was diluted 1/25 with 0.10 mol/l hydrochloric acid; plasma and serum were diluted 1/5 with deionized water. concentrations could be read directly from standards prepared in human blood pools. the within-run relative standard deviation (rsd) was 0.50%, 0.82% and 0.61% for whole blood specimens with concentration ...19854053384
suppression of human lymphocyte mitogen response by retroviruses of type d. ii. non-activity of mason-pfizer monkey virus versus activity of human cell line derived virus pmfv.in contrast to the human cell line derived type d retrovirus pmfv, the mason-pfizer monkey virus (mpmv) does not suppress the mitogen response of normal human lymphocytes. both viruses have been propagated on the same cell lines and purified by the same methods. mpmv did not contain a factor able to abolish pmfv-induced suppression of the mitogen response. neither could mpmv suppress the mitogen response of lymphocytes from rhesus monkeys or baboons. pmfv however inhibited their reactivity.19854062558
classically conditioned hyperglycemia in the obese mouse.the obese (c57bl/6j ob/ob) mouse is a commonly used animal model of non-insulin-dependent diabetes mellitus. it has recently been demonstrated that this mouse is not consistently hyperglycemic, however, unless it is subjected to environmental stress. in the present study, hyperglycemia in obese mice was induced by classical conditioning. obese diabetic mice and lean control animals were exposed to shaking stress. all animals developed hyperglycemia in response to shaking. to demonstrate classica ...19854070525
motor conduction velocity in the human spinal cord: slowed conduction in multiple sclerosis and radiation myelopathy.transcutaneous electrical stimulation of the central nervous system was used to measure motor conduction velocity in the human spinal cord in 21 subjects aged 22 to 75 years (mean 55 years), none of whom had neurological disease. the motor conduction velocity between the sixth cervical (c6) and first lumbar (l1) vertebral levels was 67.4 +/- 9.1 m/s. this probably represents conduction velocity in the corticospinal tracts. in these subjects the motor conduction velocity in the cauda equina, betw ...19854078579
alu sequences transcription in x. laevis oocytes: nuclear-cytoplasmic partitioning and evidence for 3' end processing reactions.a large alu-family cluster in the 5' flanking region of a human alpha 1-acid glycoprotein gene has been identified and sequenced. individual members microinjected into x. laevis oocytes are transcribed only when canonical box a and b components of the split pol iii promoter are present. alu transcripts accumulate in the nucleus. an unusually short alu transcript, able to assume a stable secondary structure, undergoes a 3' end processing reaction similar to the one required for trna 3' end matura ...19854080545
inhibition of histamine-n-methyltransferase activity by neuromuscular blocking drugs.on the basis of previous findings that histamine-n-methyltransferase (hmt) activity can be significantly enhanced or inhibited by a number of analogues of histamine and drugs containing dialkylaminoalkyl moieties, we investigated whether the neuromuscular blocking drugs alcuronium, d-tubocurarine, decamethonium, succinylcholine, gallamine and pancuronium each of which contain quaternary ammonium groups, influence the activity of hmt. our findings showed that all six drugs significantly inhibited ...19854083176
fourteen years of shigellosis in dhaka: an epidemiological analysis.we examined whether the proportion of shigellae patients among diarrhoeal cases, the distribution, species, case-fatality rates and hospital visits changed over time in dhaka. we isolated 19639 shigella strains from 822812 diarrhoea cases treated at the international centre for diarrhoeal disease research, bangladesh (icddr,b), between 1969 and 1982. the number of cases increased from 209 (2.5%) in 1969 to 4833 (7.7%) in 1976. extrapolating from a 4% vigorous systematic sample of icddr,b hospita ...19854086147
[ultrastructural aspects of the wound healing process of the skin of albino rats]. 19854089424
amino acid and protein metabolism in dorsal root ganglia of rabbits with experimental allergic neuritis.amino acid and protein metabolism has been studied in the dorsal root ganglia of rabbits with experimental allergic neuritis (ean). the concentrations of a number of nonessential amino acids (glutamine, serine, aspartate, and glutamate) were reduced in the spinal ganglia of ean animals without any comparable change in the blood plasma. the short-term influx of glycine and gaba was decreased in ean animals, whereas that of histidine and valine was not altered. the prolonged accumulation of all th ...19854094728
middle tumor antigen of polyomavirus transformation-defective mutant ng59 is associated with pp60c-src.we have found that lysis of mouse embryo cells infected with the polyomavirus host range transformation-defective (hr-t) mutant ng59 under gentle conditions that avoid ionic detergents results in detectable ng59-encoded middle tumor antigen (mtag) associated with pp60c-src. this mtag-pp60c-src complex could be immunoprecipitated from ng59-infected cell lysates by either sera from animals bearing polyomavirus-induced tumors or by monoclonal antibodies directed against mtag. immune complex kinase ...19852981329
serologic survey of rotavirus, norwalk agent and prototheca wickerhamii in wastewater workers.analysis of paired sera from 48 wastewater workers and controls who reported gastrointestinal illness did not reveal any excess of seroconversions to norwalk agent or to rotavirus. inexperienced wastewater-exposed workers had higher levels of antibody to norwalk agent than did experienced and control workers and those with high and medium aerosol exposure had higher titres than those in the low aerosol category. analysis for prototheca antibody titres was essentially negative.19852981485
immunologic characterization of herpes simplex virus type 2 antigens icp10 and icsp11/12.infected cell protein 10 (icp10) or antigen 4 (ag4) and infected cell-specific protein 11/12 (icsp11/12) have been suggested as specific antigenic markers for cervical carcinoma. experiments were designed to determine whether icp10 and icsp11/12 are distinct antigens and to determine the cellular localization of icp10. results indicate that an apparent 160 kdalton (kda) protein analyzed by 8.5% polyacrylamide gels (= 144 kda protein analyzed by 7.0% polyacrylamide gels) was detected in hsv-2-inf ...19852988230
induction of cellular dna synthesis by a simian virus 40 mutant defective in nuclear transport of t antigen.the simian virus 40 (sv40) (ct)-3 mutant [sv40(ct)-3], which is defective in nuclear transport of t antigen, was utilized to determine whether cellular dna synthesis can be stimulated by sv40 in the absence of detectable nuclear t antigen. cellular dna synthesis was examined in the temperature-sensitive cell cycle mutants, bhk ts13 and bhk tsaf8, after microinjection of quiescent cells with plasmid dna containing cloned copies of wild-type sv40 or sv40(ct)-3. the efficiency of induction of cellu ...19852993869
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
elicitation of conspecific attack or defense in the male rat by intraventricular injection of a gaba agonist or antagonist.the involvement of central gabaergic mechanisms in the control over offensive and defensive behaviours in the rat was studied using intracerebroventricular injections (5 microliter) of a gaba agonist (thip) or a gaba antagonist (bicuculline methiodide). intracerebroventricular injections of thip (1.25 and 2.5 micrograms) induced attacks and offensive sideways towards an untreated partner, in animals placed in a neutral area where no aggressive reactions occur in controls. social approach behavio ...19852999844
elicitation of conspecific attack or defense in the male rat by intraventricular injection of a gaba agonist or antagonist.the involvement of central gabaergic mechanisms in the control over offensive and defensive behaviours in the rat was studied using intracerebroventricular injections (5 microliter) of a gaba agonist (thip) or a gaba antagonist (bicuculline methiodide). intracerebroventricular injections of thip (1.25 and 2.5 micrograms) induced attacks and offensive sideways towards an untreated partner, in animals placed in a neutral area where no aggressive reactions occur in controls. social approach behavio ...19852999844
axonally transported shigella cytotoxin is neuronotoxic.shigella dysenteriae strains produce an exotoxin (sdt) which inhibits protein synthesis in susceptible cells and is neurotoxic in some species. intraneural microinjection of highly purified sdt into the cervical vagus nerves of rats, mice, guinea pigs and rabbits produced cytopathic changes within 24 hours in vagal sensory but not motor neurons. these changes consisted of an initial loss of nissl substance followed by progressive cell degeneration and resulted in permanent neuronal loss. indirec ...19852411880
'o'-antigens are essential virulence factors of shigella sonnei and shigella dysenteriae 1.a novel transposon mutagenesis system has been developed for shigella. we have used it to isolate specific mutants of shigella sonnei and shigella dysenteriae 1 that fail to produce lipopolysaccharide 'o' side chains. the virulence of the mutants was evaluated in the sereny test and in a hela cell invasion assay. all ho'-minus mutants failed to provoke a positive sereny reaction but retained the ability to invade hela cells. this demonstrates that 'o' side chains are virulence factors of s. sonn ...19852413650
inactivation by polymyxin b of the endotoxin-mediated interferon production in the rabbit.polymyxin b (pb) completely or at least significantly inhibited the capacity of shigella dysenteriae 1 cells and the lipopolysaccharide (lps) and lipid a (la) subunits of several bacterial endotoxins to induce interferon (ifn) in rabbits. animals injected with lps inactivated by pb to the point of not inducing detectable ifn levels did not develop hyporesponsiveness to secondary ifn induction by a homologous inducer. it was concluded that pb inhibits the ifn-inducing capacity of endotoxin and it ...19852413651
[vital staining of the conjunctiva for prevention of epithelial implantation cysts].selective vital staining with 1% toluidine blue makes short-term intraoperative differentiation of the conjunctiva from tenon's capsule possible. it is used with advantage in operations where the anatomical situation is unclear to avoid displacement of conjunctival epithelium into deeper tissues and subsequent growth of cysts. examples of its application are reoperations with excessive scars after squint or detachment surgery, wound dehiscence after enucleations, lacerated wounds after accidents ...19852415747
court of appeals rules dhss notice on family planning contrary to law.in the december 1982 case of gillick v. west norfolk and wisbech aha, the british court of appeal acceded to mrs. victoria gillick's petition that no professional employed by the health authority be permitted to give contraceptive or abortion treatment to any of her children under the age of 16 without her prior knowledge and consent. the ruling held that a 1980 department of health and social security notice allowing treatment of minors without parental consent was contrary to law. the court ...19852856993
nalidixic-acid-resistant shigella dysenteriae i. 19852858035
effects of a high-sucrose diet on the development of enzyme-altered foci in chemical hepatocarcinogenesis in rats.dietary factors can modify metabolic events involved in the initiation, promotion, or progression of tumors. to determine whether a high-sucrose diet has any effect on the development of enzyme-altered foci during the promotion step of chemical hepatocarcinogenesis in rats, 1-day-old sprague-dawley rats were given a single i.p. dose of diethylnitrosamine; controls received an equivalent i.p. volume of 0.9% nacl solution. at 21 days of age, the rats were weaned, segregated by sex, separated in gr ...19852859110
effects of a high-sucrose diet on the development of enzyme-altered foci in chemical hepatocarcinogenesis in rats.dietary factors can modify metabolic events involved in the initiation, promotion, or progression of tumors. to determine whether a high-sucrose diet has any effect on the development of enzyme-altered foci during the promotion step of chemical hepatocarcinogenesis in rats, 1-day-old sprague-dawley rats were given a single i.p. dose of diethylnitrosamine; controls received an equivalent i.p. volume of 0.9% nacl solution. at 21 days of age, the rats were weaned, segregated by sex, separated in gr ...19852859110
epidemic shiga bacillary dysentery in rangoon, burma, 1984/85. 19852861376
evidence against putrescine and polyamines as endogenous mediators of fever.endogenous concentrations of putrescine, spermidine, spermine and related biosynthetic enzymes were not affected by the administration of bacterial endotoxin and the subsequent development of fever in rabbits. in addition, the febrile response to endotoxin was unaffected either by the ornithine decarboxylase inhibitor, dl-alpha-difluoromethylornithine or by putrescine. these data indicate polyamines are not involved in the development of fever.19852862252
multiresistant shigella infections in bangladesh. 19852863461
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