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nitrogen metabolism by the microbial flora of the rabbit caecum.the dense microbial flora of the rabbit caecum consisted chiefly of bacteria (10(11)/g) with small numbers of yeast cells (10(6)/g). using strictly anaerobic technique, 23% of the direct microscopic cell count was cultivated and 55% of the cultivatable bacteria utilized ammonia as the sole source of nitrogen. ureolytic bacteria were isolated from the caecal lumen and mucosa and were identified as bacteroides vulgatus, clostridium clostridiiforme, bacillus spp. and staphylococcus spp. ammonia ass ...19853997689
mathematical modelling of dynamics and control in metabolic networks. v. static bifurcations in single biochemical control loops.here we expand an earlier study of feedback activation in simple linear reaction sequences by searching the parameter space of biologically realistic rate laws for multiple stable steady states. the impetus for this work is to seek the origin of decision making strategies at the metabolic level, with particular emphasis on the switching between the operating conditions needed to meet changing substrate availability and organism requirements. the control loop considered herein is a linear reactio ...20143999779
adverse effects secondary to baclofen withdrawal.drug therapy is now the preferred method of treatment for spasticity, and several effective agents have been developed. the safety and efficacy of these drugs has been established in short-term studies. overall, due to its low incidence of sedation and serious side effects, baclofen appears to be the drug of choice in the treatment of spinal cord-related spasticity. it is, however, not without its side effects due to both its administration and abrupt withdrawal. this case illustrates some signi ...20144006720
[clinical and hemodynamic evolution of carpentier-edwards prostheses]. 20144015004
in vitro activity of sch 34343 and cefbuperazone against anaerobic bacteria.the in vitro activities of sch 34343, a new penem antibiotic, and cefbuperazone, a new cephamycin antibiotic, were determined against 459 clinical anaerobic bacterial isolates and compared with the activities of imipenem and cefoxitin, respectively, by an agar dilution method. both penems showed potent and similar activity against all anaerobic bacteria tested, particularly peptococcus spp., bacteroides fragilis, and clostridium perfringens. all organisms except a single strain of fusobacterium ...19854015069
comparison of the icrp and mird models for fe metabolism in man.a task group of the medical internal radiation dose (mird) committee has recently published a model of fe metabolism in man. this model was developed to calculate doses from radioiron injected for medical diagnostic purposes. it is a compartment model with recirculating fe exchanging between plasma and extracellular fluids, tissue storage compartments, bone marrow and red blood cells (rbc). it is a first order model with the exception of fe in the rbc compartment, which is assumed to retain fe f ...19854019192
serogrouping of bacteroides vulgatus by the agglutination test.the agglutination technique was used to establish a serological classification scheme for bacteroides vulgatus strains isolated from normal human feces and clinical specimens, especially from ulcerative colitis patients. absorbed antisera to 10 strains of b. vulgatus were prepared. these 10 absorbed antisera were species specific. of 90 b. vulgatus strains tested, 55 (61%) were agglutinated by one or more of these 10 absorbed antisera. a total of 27 serological patterns were grouped into 18 sero ...19854019743
the co2 laser for recurrent and therapy-resistant condylomata acuminata.the medical records of 48 patients who underwent laser vaporization of therapy-resistant or recurrent condylomata acuminata were studied with regard to history of immunosuppression, location of original lesion, type and duration of therapy, and whether magnification devices were used prior to or during therapy. the genitalia of the patients' sexual partners were examined in all cases in which the condylomata recurred after initial control of the lesions with conventional methods. in 46 of the 48 ...20144020791
microcomputers in clinical research: discussion paper. 20144020798
tissue factor gene localized to human chromosome 1 (1pter----1p21).tissue factor (tissue thromboplastin, coagulation factor iii), a protein component of cell membranes, is an essential cofactor for factor vii-dependent initiation of blood coagulation. since no tissue factor-deficient condition has been described, it is one of only a few proteins of the coagulation system for which the pattern of inheritance has not been ascertained. because of the species-specificity of tissue factor activity and the availability of a very sensitive chromogenic assay, it was po ...19854023720
[therapeutic problems in acromegaly]. 20144029005
detection of nonrandom clustering of colonies in agar culture.we report a quantitative method for the detection of clustering in agar cultures. a statistical model was constructed on the assumption that colony formation by a cell in agar culture was independent of its spatial relationship to other cells in the culture. deviation from this model was then tested by a chi-squared test of the actual observations compared with values obtained from the model. this method provides a technique that will identify interactions between cells of like or unlike type. u ...20134029296
chronic pediatric tracheotomy: assessment and implications for habilitation of voice, speech and language in young children.the effect of chronic tracheotomy on the acquisition of voice, speech, and language skills was studied. children with chronological ages of 16 months to 41 months were evaluated for receptive communication age (rca) and expressive communication age (eca). results indicate a consistent deviation of (on the average) 4.8 months delay in rca and 9 months delay in eca. an habilitation program for early intervention in voice, speech and language stimulation is described, with follow-up data on 3 child ...20144030238
[endoscopic retrograde pancreatocholangiography in children]. 20134034321
[production of erosions and ulcers of the colon in syrian hamsters with bacteroides vulgatus isolated from the fecal microflora of human ulcerative colitis]. 19854039383
detectability of group-specific component (gc) in aged bloodstains.an improved method of group-specific component (gc) typing was conducted electrophoretically on agarose gel. individual bloodstains randomly collected from different individual donors over a five-year period at intervals of approximately one month were checked for gc activity. group-specific component was typed accurately in dried bloodstains stored at room temperature up to 43 months in age. from 100 different donors, bloodstains ranging in age from 38 to 43 months were tested by the methods de ...20144039746
loss of viability of bacteroides fragilis and bacteroides vulgatus in different media. 19854043068
[early penicillin treatment can prevent cns symptoms in tick-transmitted borrelia meningitis]. 19854046663
acute changes in plasma steroids and agonistic behavior in male japanese quail.a systematic analysis of the acute (minutes to hours) fluctuations of plasma steroids [androstenedione (a), 5 alpha-dihydrotestosterone (dht), testosterone (t), corticosterone (b)] was investigated in relation to the fighting behavior displayed by experienced male japanese quail (coturnix coturnix) in short-term (2 min) dyadic encounters. plasma levels of hormones measured in competitors either 1 hr before, during, or 3 min to 6 hr following a fight related poorly to either the attacking or nona ...20134054584
automated methods for determination of fat and moisture in meat and poultry products: collaborative study.a collaborative study was conducted to compare automated methods for rapid determination of fat and moisture in meat and poultry products with the official aoac solvent extraction and forced-air oven methods, respectively. fourteen products were tested, with fat and moisture contents ranging from 2 to 43% and 44 to 74%, respectively. eight of the collaborating laboratories analyzed the products by using a moisture/fat analyzer; 4 laboratories used the aoac methods. standard deviations for within ...19854055632
[evaluation of a semiautomatic system (abac-abactor iii) for the identification of enterobacteriaceae].abac-abactor ii system has been compared with two conventional methods (enterotube ii and ms-2) for the identification of enterobacteriaceae. our findings demonstrate the validity and the reproducibility of the identification obtained with this system.20144059512
myonecrosis, myoglobinuria and acute renal failure induced by south american rattlesnake (crotalus durissus terrificus) envenomation in brazil.the venom of the brazilian rattlesnake crotalus durissus terrificus is know to have hemolytic and neurotoxic physiopathological activities which may cause acute renal failure with hemoglobinuria and/or methemoglobinuria. as far as we know, no report has been published on the ability of the venom of this rattlesnake species to cause rhabdomyolysis. in the present paper we demonstrate that the venom of brazilian snakes of the genus crotalus can induce systemic myonecrosis. clinical, laboratory and ...20134060176
reversible expression of flagella in campylobacter jejuni.campylobacter jejuni 81116 and a3249 undergo a bidirectional transition between flagellated (fla+) and aflagellated (fla-) phenotypes. when measured in culture medium, the fla+----fla- transition occurred at a rate of 3.1 x 10(-3) to 5.9 x 10(-3) per cell per generation, and the fla- to fla+ transition occurred at a rate of 4.0 x 10(-7) to 8.0 x 10(-7) per cell per generation. however, passage through a rabbit intestine markedly favored the fla+ phenotype.19854066041
postnatal development of the telencephalon of the tammar wallaby (macropus eugenii). an accessible model of neocortical differentiation.the sequence of development of cell layers in the neocortex of the tammar has been followed from 24 days gestation to 213 days postnatal. the tammar is born at 27 days gestation and the major period of its development occurs during the subsequent 250 days, most of this time being spent within the pouch. although the pattern of differentiation of the cell layers appears to resemble that described for many eutherian mammals, the neocortex is at an embryonic 2 layered stage at birth and a cortical ...20144073534
comparative mortality ratio--a health index. 20144077244
[possibility of determination of the value of the ejection fraction of the left ventricle with non-invasive methods in ischemic cardiopathy]. 20144080166
use of a species-specific dna hybridization probe for enumerating bacteroides vulgatus in human feces.pbv-1, a recombinant plasmid that contains a chromosomal dna fragment from bacteroides vulgatus, hybridized to dna from b. vulgatus but not to dna from other colonic bacteroides species. this plasmid was used as a dna probe to detect and enumerate b. vulgatus in pure culture, in mixed cultures, and in a bacterial fraction from human feces. bacteria in a pure or mixed culture were lysed by heating the culture in naoh. the dna in the disrupted cell suspension was then trapped on nitrocellulose pap ...19854083890
[effects of anti-arrhythmia agents of the heart conduction system]. 19854087425
[bone scintigraphy of synovial osteochondromatosis]. 20064087455
methods of extraction and high-performance liquid chromatographic analysis of butylated hydroxytoluene from the tissues and serum of rats.butylated hydroxytoluene (bht) is a phenolic antioxidant which is widely used in foods and has been shown to inhibit chemical carcinogenesis in the mammary gland induced by 7,12-dimethylbenz(a)anthracene. however, its mechanism of action as a tumor inhibitor is unclear. the purpose of this work was first to develop a method for extracting and quantitating bht and then to determine the amounts that accumulate in the tissues and serum of rats as a starting point for looking at mechanistic possibil ...19854096383
inhibition of mitosis by avarol, a natural product isolated from the sponge dysidea avara.avarol, a sesquiterpenoid hydroquinone, is a cytostatic agent, isolated from the sponge dysidea avara. autoradiographic studies show that in vivo (l5178y mouse lymphoma cells) avarol changes the labelling index in favour of the fraction of unlabelled cells (from 1.24 to 1.04). at concentrations below the 50% inhibition dose, the mitotic index increases from 6.5 +/- 0.5 to 10.4 +/- 0.8; at higher concentrations the formation of mitotic figures is almost completely suppressed. in vitro studies app ...19854096684
a new line on age pigment? 20144097957
action of diazepam on muscular contraction in man. 19714102747
immunological studies in the cat. ii. experimental induction of skin reactivity to foreign proteins. 19674108180
reliability of glucose oxidase staining at the ultrastructural level for immunohistochemical studies. 20144111155
[scintigraphic studies of bones in hemoblastoses]. 20144111754
[experimental data on the penetration of hexachlorane into the soil]. 20144112874
[data obtained by electronic microscope examination of the refrigence phenomenon of some cells in mammals observed in photonic light]. 20064124400
duration of immunity after tetanus vaccination. 20064125629
antibodies with multiple binding functions. induction of single immunoglobin species by structurally dissimilar haptens.anti-hapten sera prepared in rabbits contain individual immunoglobulin species capable of binding several pairs of structurally diverse haptens a and b. (a = inosine, uridine, menadione, vitamin k(1), ribonuclease; b = 2,4-dinitrophenyl). in antisera against hapten a subjected to isoelectric focusing, there are many anti-a immunoglobulin species, but only a small proportion of these bind both a and b. when rabbits are primed with haptens a coupled to a carrier and then challenged with hapten b-c ...19734131746
[apparatus for electrophoresis in starch gel]. 20144139385
red cell 2,3-diphosphoglycerate in patients with hyperthyroidism before and after treatment. 20144139877
brief report of mmpi characteristics of sexual deviation. 20144153764
[the treatment of bronchiolar obstruction (author's transl)]. 20144155789
solute migration during granule drying. 20144156730
rickets from liquid paraffin. 20144164140
barr bodies in relation to dna values and nuclear size in cultured human cells. 19674166294
[dependance of the gas exchange on body weight and food consumption during antithyroid and contra-insular treatment in the white rat]. 19664168074
the periphery of descemet's membrane. a study by light microscopy. 20144173658
the effect of thyroxine on peripheral thyroid hormone metabolism. 20144187946
feulgen staining of deoxyribonucleic acid by mixtures of schiff type reagents at different ph values. 19704191050
symbolism in the treatment of schizophrenia. 20144195343
chromatin fibril size in salivary gland chromosomes of drosophila melanogaster. 20144202370
[generalized congenital listeria monocytogenes infection with fatal outcome (author's transl)]. 19734203464
[influence of metabolic inhibitors on rosette-forming human lymphocytes in vitro]. 19744210343
[assessment of sensitivity to penicillin and other antibiotics in neisseria gonorrhoeae in poland in 1973]. 19744211104
desmosomes in human seminiferous epithelium. an electron microscopic study. 19744216139
[statistical contribution to dorsal displacement of vertebral bodies]. 20134220665
[statistical contribution to dorsal displacement of vertebral bodies]. 20134220665
rapid typing of dengue viruses by the microprecipitin agar gel diffusion technique. 19654221437
[radiologic observations on lumbalgias]. 20144221792
[on the storage of mucopolysaccharide-like substances in the brain in generalized glycogenosis (type ii)]. 20144223251
[otological manifestations in hypothyroidism. clinical and experimental research]. 20144230230
[the tasks of organized dentistry in the control of caries in greek children]. 20144231519
[effect of epiphysectomy on the ovary of the golden hamster (mesocricetus auratus waterh.)]. 19674231631
[various problems relative to chemical aggression]. 20144235737
[results of the treatment in fractures and dislocations of the cervical vertebrae. late results in 26 survivors]. 20144238935
biochemical effects of cholera enterotoxin: oxidative metabolism in the infant rabbit. 19704244290
[medullary cancer of the thyroid gland with amyloidosis of the stroma]. 20144249215
a study of workers exposed to detergent enzymes. 19714253729
attachment of plaque and calculus to tooth surfaces. 20144255150
influence of fluothane on calcium accumulation by the heavy microsomal fraction of human skeletal muscle: comparison with a patient with malignant hyperpyrexia. 19724261809
[accumlation of boron my microorganisms inhabiting the soils of the boron geochemical province of north-west kazakhstan]. 19734272446
[late-onset damage to the supporting system of leg amputees]. 20144272554
histochemistry of the mucins in the posterior lingual salivary glands of some mammals. 19734272722
histochemistry of the mucins in the posterior lingual salivary glands of some mammals. 19734272722
[provision for and requirement of vitamin pp in patients with glaucoma]. 20144272972
[provision for and requirement of vitamin pp in patients with glaucoma]. 20144272972
role of pulmonary hypertension, hypoxaemia and right ventricular hypertrophy on the right heart failure in pulmonary heart diseases. 20144273123
[management of congenital hip dislocation with the hanausek method as compared with conventional procedures]. 20144273488
[behavior of the very difficult child in the dental office. i. the cause]. 20144274837
[laparoscopic extra- and intrahepatic angiography and pressure measurement]. 20144280624
nonspecific life shortening in male mice exposed to the mammary tumor agent. 19664287953
nonspecific life shortening in male mice exposed to the mammary tumor agent. 19664287953
[evolution and complications of suppurative meningitis]. 20144291410
[evolution and complications of suppurative meningitis]. 20144291410
[new facts concerning the hormonal supervision of malignant trophoblastomas. differentiations of the principal pituitary or chorionic gonadotropins in castrated subjects]. 20144293151
thymidine salvage pathway in normal and leukemic leukocytes with effects of atp on enzyme control. 20144305274
[irreversible lesions of the trigeminal nerve caused by chlorinated acetylenes in two patients]. 20154314203
[normal fundi oculi in tumors of the posterior cranial fossa]. 20144319488
[normal fundi oculi in tumors of the posterior cranial fossa]. 20144319488
[statistical characteristics of signal transmission in the nervous system]. 20154320075
enhanced resistance of mice to virulent japanese b encephalitis virus following inactivated vaccine and poly i:c. 19704323444
antiviral resistance by the polyinosinic acid-poly (1-vinylcytosine) complex.the antiviral activities of analogs of the double-stranded complex of polyinosinic and polycytidylic acids [poly(i).poly(c)], which is a potent interferon inducer, have been studied. structural changes that modify the polymer backbone substantially, such as loops or 2' --> 5' phosphodiester bonds, lead to decreased antiviral activity. unexpectedly, however, the complex of polyinosinic acid and poly(1-vinylcytosine), which is only a much more distantly related analog of poly(i) . poly(c), shows h ...20144324924
[competition of renal effects of angiotensin ii and extracellular fluid volume receptors]. 20154330959
[presidential address. health is harmony]. 20154337670
arrested development of myelin in chick optic tectum following deaferrentation. 19724345030
effect of alloxan diabetes, insulin & diabetogenic hormones on intestinal transport of tyrosine in rats. 19724346754
hormone- and fluoride-sensitive adenylate cyclases in human fetal tissues. 19734349412
hormone- and fluoride-sensitive adenylate cyclases in human fetal tissues. 19734349412
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