| aspartate transcarbamylase from streptococcus faecalis. reverse reaction and binding studies. | | 1974 | 4204272 |
| identification and measurement of the folates in sheep liver. | 1. methods are described for the extraction, separation by ion-exchange chromatography and estimation by microbiological assay of the folates in sheep liver. 2. injection of [2-(14)c]-pteroylglutamate into a sheep fed on a stock diet led to extensive labelling of chromatographically separable liver folates. about 12% of the label in the liver could not be extracted by the method used. 3. liver folates were examined in five ewes fed on restricted amounts of a diet of wheaten hay-chaff and gluten ... | 1973 | 4204321 |
| folic acid metabolism in vitamin b12-deficient sheep. depletion of liver folates. | 1. metabolism of folate was studied in six ewes in an advanced state of vitamin b(12) deficiency as judged by voluntary food intake and in their pair-fed controls receiving vitamin b(12). a group of four animals that were maintained throughout the experiment at pasture was also studied. 2. after 34-40 weeks on the cobalt-deficient diet urinary excretion of formiminoglutamate by four deficient animals was about 3.2mmol/day and this was not significantly decreased by injection of three of them wit ... | 1973 | 4204322 |
| synthesis of pyrimido(4,5-b)(1,4)-7-hydrothiazines related to 7,8-dihydropteridines of biological importance. | | 1974 | 4204336 |
| electrokinetic studies of bacteria. iv. effect of acridines on streptococcus faecalis. | | 1974 | 4204345 |
| conjugal transfer of plasmid-borne multiple antibiotic resistance in streptococcus faecalis var. zymogenes. | a strain of streptococcus faecalis var. zymogenes, designated jh1, had high-level resistance to the antibiotics streptomycin, kanamycin, neomycin, erythromycin, and tetracycline. these resistances were lost en bloc from approximately 0.1% of cells grown in nutrient broth at 45 c. the frequency of resistance loss was not increased by growth in the presence of the "curing" agents acriflavine or acridine orange, but after prolonged storage in nutrient agar 17% of cells became antibiotic sensitive. ... | 1974 | 4204433 |
| studies of folic acid compounds in nature. 3. folic acid compounds in cabbage. | | 1973 | 4204493 |
| inhibition of metabolism by hydrostatic pressure: what limits microbial growth? | | 1973 | 4204950 |
| the formation of h2-pteroate analogs from paba-antagonists in a cell-free system of e. coli. | | 1973 | 4205023 |
| [comparative examination of enterococci obtained from drinking water, foodstuffs and urine (author's transl)]. | | 1973 | 4205128 |
| lactic acid translocation: terminal step in glycolysis by streptococcus faecalis. | streptococcus faecalis obtains metabolic energy chiefly from the conversion of glucose to lactic acid; the present experiments deal with the mechanism of lactic acid translocation across the cytoplasmic membrane. efflux of [(14)c]lactate from preloaded cells was accelerated by raising the external ph, and also by the ionophores nigericin and valinomycin. these results suggest that lactate leaves the cell by an electroneutral process, presumably as lactic acid. further evidence was obtained by st ... | 1974 | 4205190 |
| immunofluorescent demonstration of bacterial antigen in experimental pyelonephritis with antiserum against common enterobacterial antigen. | | 1973 | 4205217 |
| [evaluation of the bactericidal action of benzalkonium chloride using a multiple site culture injector]. | | 1973 | 4205284 |
| [determination of the bactericidal activity of benzalkonium chloride by counting the survivors after neutralization of the antiseptic]. | | 1973 | 4205285 |
| [protective efficacy of some inactivated oral bacterial vaccines]. | | 1972 | 4205298 |
| [immunologic interactions between some bacterial inactivated oral vaccines. ii. antibody response in the rabbit]. | | 1972 | 4205300 |
| folate coenzymes of lactobacillus casei and streptococcus faecalis. | | 1974 | 4205313 |
| initiation of protein synthesis by folate-sufficient and folate-deficient streptococcus faecalis r. biochemical and biophysical properties of methionine transfer ribonucleic acid. | | 1974 | 4205317 |
| effects of eimeria acervulina on intestinal ph in conventional and gnotobiotic chickens. | | 1974 | 4205348 |
| [a comparative assessment of the virulence of enterococci isolated from patients and from the intestinal contents of healthy subjects]. | | 1973 | 4205425 |
| intestinal microbial flora and proteolytic activity of intestinal contents. | | 1974 | 4205782 |
| [the effect of gentamicin and other antibiotics on the pathogenic germs in urinary tract infections (author's transl)]. | | 1973 | 4205807 |
| chronic prostatitis--an australian view. | | 1974 | 4205846 |
| synergism between ecologic and immunologic control mechanisms of intestinal flora. | | 1974 | 4205879 |
| pyelonephritis. xvii. comparison of combinations of vancomycin, ampicillin, streptomycin, and gentamicin in the treatment of enterococcal infection in rats. | | 1974 | 4205881 |
| effect of oral contraceptives on the plasma concentration of pyridoxal phosphate. | | 1974 | 4206322 |
| [development of bacterial resistance against trimethoprim-sulfamethoxazole (eusaprim)]. | | 1974 | 4206486 |
| the post-mortem microbiological analysis as an indicator of nosocomially-significant microorganisms in the hospital environment. | | 1974 | 4206488 |
| aphakic soft contact lenses. i. a clinical and bacteriological study. | | 1974 | 4206798 |
| initiation of protein synthesis by folate-sufficient and folate-deficient streptococcus faecalis r: partial purification and properties of methionyl-transfer ribonucleic acid synthetase and methionyl-transfer ribonucleic acid formyltransferase. | the initiation of protein synthesis by streptococcus faecalis r grown in folate-free culture occurs without n-formylation or n-acylation of methionyl-trna(f) (met). methionyl-trna synthetase and methionyl-trna formyltransferase were partially purified from s. faecalis grown under normal culture conditions in the presence of folate (plus-folate); the general properties of the enzymes were determined and compared with the properties of the enzymes purified from wild-type cells grown in the absence ... | 1974 | 4206871 |
| infective endocarditis. a review of selected topics. | | 1974 | 4207135 |
| two new inhibitory activities in blood of mice with delayed hypersensitivity, after challenge with specific antigen. | in addition to the activities associated with migration inhibitory factor and type ii interferon, two other inhibitory activities have been found in the sera of mice infected intravenously with bcg and 3 weeks later challenged intravenously with old tuberculin. growth of three bacteria, streptococcus faecalis, staphylococcus aureus, pseudomonas aeruginosa, and one yeast, candida albicans, was inhibited in vitro by a factor or factors in the serum. also, hematopoiesis of mouse bone marrow cells i ... | 1974 | 4207187 |
| [comparative studies in vitro on the antibiotic effectiveness of terizidon]. | | 1974 | 4207337 |
| viability of l-phase variants after centrifugation. | l-phase variants of several genera may be centrifuged with minimal, if any, loss of viability. | 1974 | 4207519 |
| d-alanine carboxypeptidase from streptococcus faecalis. | | 1974 | 4208060 |
| estimations of membrane potentials in streptococcus faecalis by means of a fluorescent probe. | | 1974 | 4208061 |
| factors influencing the frequency of mesosomes observed in fixed and unfixed cells of streptococcus faecalis. | mesosomes of streptococcus faecalis (american type culture collection 9790) were seen about 92% less frequently in freeze fractures of unfixed cells than in freeze fractures and sections of fixed cells. this difference in frequency was not related to any period of unbalanced macromolecular synthesis induced by chemical fixation. all measured synthetic processes (dna, rna, and protein synthesis, and glycerol incorporation) were halted with either osmium tetroxide (os) or glutaraldehyde fixation. ... | 1974 | 4208070 |
| effect of temperature on the distribution of membrane particles in streptococcus faecalis as seen by the freeze-fracture technique. | when cells of streptococcus faecalis atcc 9790 were incubated at temperatures above 10 c before being frozen for freeze-fracture, a random distribution of particles was observed on the outer fracture face of the freeze-cleaved cell membrane. however, when cells were incubated below 10 c before freezing, particleless patches were seen on this membrane surface. the size of the patches produced on chilling could be increased by centrifugation or by storing the chilled cells overnight at about 3 c. ... | 1974 | 4208140 |
| the synthesis of polyribitol phosphate. ii. on the mechanism of polyribitol phosphate polymerase. | | 1974 | 4208141 |
| trimethoprim in the treatment and long-term control of urinary tract infection. | | 1974 | 4208208 |
| influence of growth conditions on the composition of some streptococcal amino acid pools. | | 1974 | 4208256 |
| penicillin-tobramycin synergism against enterococci: a comparison with penicillin and gentamicin. | combinations of penicillin plus tobramycin have been compared with penicillin plus gentamicin against 27 strains of enterococci isolated from blood cultures. penicillin plus gentamicin was synergistic against all strains. the combination of penicillin plus tobramycin was equally effective against strains of streptococcus facalis, but was ineffective against all four strains of s. faecium tested. | 1973 | 4208292 |
| capacity of group a, b, c, d, and g streptococci to agglutinate sensitized sheep red cells. | | 1974 | 4208331 |
| the natural history of bacterial colonization of the newborn in a maternity hospital. i. | | 1974 | 4208384 |
| [properties of motile enterococci]. | | 1974 | 4208434 |
| on the specificity of phospho-n-acetylmuramyl-pentapeptide translocase. the peptide subunit of uridine diphosphate-n-actylmuramyl-pentapeptide. | | 1974 | 4208473 |
| synthesis and antifolate activity of 10-deazaminopterin. | | 1974 | 4208480 |
| synthesis of 1-deaza-n10-methylfolic acid and related compounds. | | 1974 | 4208481 |
| comparative in vitro activity of three aminoglycosidic antibiotics: bb-k8, kanamycin, and gentamicin. | kanamycin, bb-k8, and gentamicin were tested in parallel against 1,037 bacterial strains isolated from clinical material. the activity of bb-k8 at 20 mug/ml was comparable to that of gentamicin at 8 mug/ml against pseudomonas aeruginosa and against enterobacteriaceae, with the exception of gentamicin-resistant strains of proteus rettgeri and providencia stuartii, in which case the activities of bb-k8 and kanamycin were the same. bb-k8 exhibited little or no activity against streptococci. the act ... | 1973 | 4208506 |
| inactivation of dried bacteria and bacterial spores by means of gamma irradiation at high temperatures. | dried preparations with streptococcus faecium, strain a(2)1, and spores of bacillus sphaericus, strain c(i)a, normally used for control of the microbiological efficiency of radiation sterilization plants and preparations with spores of bacillus subtilis, normally used for control of sterilization by dry heat, formalin, and ethylene oxide, as well as similar preparations with micrococcus radiodurans, strain r(1), and spores of bacillus globigii (b. subtilis, var. niger) were gamma irradiated with ... | 1974 | 4208509 |
| effect of heat on the antimicrobial activity of brillant green dye. | antimicrobial activity of brilliant green dye in trypticase soy broth (bbl) is reduced and ultimately destroyed by prolonged autoclaving at 121 c. loss of antimicrobial activity is accompanied by decolorization of the dye. this is consistent with other evidence that antimicrobial activity of brilliant green resides in the colored dye ion. the dye is not decolorized when heated in distilled water or peptone, but is decolorized by heating in glucose, glycine, or sodium dodecyl sulfate, showing tha ... | 1974 | 4208510 |
| salmonellae in the environment around a chicken processing plant. | studies have been conducted over a 2-year period to determine the extent to which a poultry processing plant served as a reservoir of salmonellae reaching the external environment, to examine the question of the importance of salmonellae in the environment, and to consider how best to control the spread of the organisms. the studies have been undertaken at a chicken processing plant handling between 75,000 and 80,000 birds per day. populations of salmonellae and indicator bacteria were estimated ... | 1974 | 4208511 |
| bacterial clearance and endocarditis in american opossums. | the american opossum is the only experimental animal that regularly develops bacterial endocarditis spontaneously. there was no relation between the ability of opossums to clear bacteria from the bloodstream and the subsequent development of endocarditis. | 1974 | 4208530 |
| total synthesis of bisnorpenicillin v. | | 1974 | 4208535 |
| equine anti-hapten antibody. 8. isoelectric fractions of igm and 7s anti-lactose antibody. | | 1974 | 4208584 |
| ribsome and messenger specificity in protein synthesis by bacteria. | | 1974 | 4208644 |
| manual microbiological turbidimetric analysis of chlortetracycline in feeds. | | 1974 | 4208706 |
| biologic effects of dental materials. 3. toxicity and antimicrobial effect of endodontic antiseptics in vitro. | | 1973 | 4208832 |
| rapid detection of bacteremia by a radiometric system. a clinical evaluation. | | 1974 | 4208888 |
| chain interactions and idiotypic specificities of homogeneous rabbit anti-lactose antibodies. | | 1974 | 4208917 |
| semiautomated turbidimetric microbiological assay for determination of cefazolin. | the autoturb system, a semiautomated system for photometric bioassay, was used to determine cefazolin content. suitable conditions for the assay using streptococcus faecalis atcc 10541 as the indicator organism included a medium ph of 6.0 to 7.0 and an incubation time of 3 to 3.5 h at 36 c. multiple independent assays of samples from a common batch showed the test to be highly reproducible. accuracy of the turbidimetric assay was evaluated by comparing data obtained from a chemical (hydroxylamin ... | 1974 | 4209068 |
| anthyridine and 1,10,11,12-tetraazanaphthacene derivatives: synthesis and biological properties. | | 1974 | 4209122 |
| energetics and spectral changes in ligand binding by homogeneous rabbit anti-lactose antibody. | | 1974 | 4209167 |
| ultrastructural localization of cell wall teichoic acids in streptococcus faecalis by means of concanavalin a. | | 1974 | 4209287 |
| preparation of penicillin n and isopenicillin n. | | 1974 | 4209314 |
| membrane-bound dd-carboxypeptidase and ld-transpeptidase of streptococcus faecalis atcc 9790. | | 1974 | 4209348 |
| ultrastructural changes in the bacterial vegetative endocarditis. | | 1974 | 4209747 |
| the use of sodium sulfite as a neutralizer for evaluating povidone-iodine preparations. | | 1974 | 4209769 |
| [the presence of malic enzyme and malo-lactic enzyme in various lactic acid bacteria (author's transl)]. | | 1974 | 4209828 |
| potential antileprotic agents. 3. inhibition of mycobacterial dihydrofolic reductase by 2,4-diamino-5-methyl-6-alkylquinazolines. | | 1974 | 4209923 |
| management of urinary tract infection in acute paraplegic patients with special reference to the paper strip screening test for infection. | | 1974 | 4210111 |
| pyelonephritis. 18. effect of treatment on the pathology of enterococcal pyelonephritis in the rat. | the effect of antimicrobial therapy on the histopathologic progression of experimental hematogenous pyelonephritis induced in rats by streptococcus faecalis was studied. treatment sufficient to render the renal parenchyma sterile strikingly decreased the incidence and severity of calyceal lesions, delayed the progression of papillary lesions but had little effect on the severity of cortical interstitial and tubular alterations. l-forms could not be demonstrated to participate in the pathogenesis ... | 1974 | 4210276 |
| bacterial growth inhibition by amniotic fluid. i. in vitro evidence for bacterial growth-inhibiting activity. | | 1974 | 4210400 |
| plaque formation by mixed cultures of nonprimary plaque-forming microorganisms. | | 1974 | 4210472 |
| small-intestinal bacterial flora in dermatitis herpetiformis. | | 1974 | 4210511 |
| use of sodium polyanethol sulfonate in the preparation of 5 per cent sheep blood agar plates. | an alternative method to defibrinating sheep blood for use in bacteriological media is described. the new procedure incorporates sodium polyanethol sulfonate in a concentration of 0.05% (vol/vol). in testing 117 bacterial and fungal isolates, no significant differences were found with respect to adequate growth, pigment production, hemolytic reactions, and other physical attributes. further tests demonstrate that the sodium polyanethol sulfonate in sheep blood agar plates does not cause any aber ... | 1974 | 4210729 |
| the recovery of indicator bacteria on selective media. | | 1974 | 4211091 |
| [the role of conditionally pathogenic microbial flora in causing gastrointestinal diseases in young children. a survey of the literature]. | | 1973 | 4211705 |
| [treatment of infectious diarrhea with drug resistant enterococcus preparation]. | | 1974 | 4211722 |
| [use of acridin dyes in selective media for the isolation of listeria monocytogenes. ii. modified stuart medium: a new listeria-transport-enrichment-medium (author's transl)]. | | 1974 | 4211729 |
| cephacetrile, a new cephalosporin, in the treatment of urinary tract infections. | | 1974 | 4211859 |
| hydrophobic grid-membrane filters: new approach to microbiological enumeration. | a square grid pattern, printed in hydrophobic material on conventional membrane filters, subdivided the surface into a plurality of areas. this separated colonies from one another and prevented lateral growth, spreading, and confluence. very high colony-packing densities were achieved (2,500/in(2); ca. 1.61 x 10(5)/cm(2)) reducing the need to dilute samples. recovery of organisms was better than on conventional filters, particularly at high inoculum levels. at the same time, visibility of normal ... | 1974 | 4212059 |
| in vivo studies on the uptake and binding of beta-lactam antibiotics in relation to inhibition of wall synthesis and cell death. | | 1974 | 4212079 |
| radiation sterilization and the anesthetist. | | 1974 | 4212296 |
| rapid transfer of folic acid from blood to bile in man, and its conversion into folate coenzymes and into a pteroylglutamate with little biological activity. | | 1974 | 4212300 |
| synergistic action of increased oxygen tensions and paba-folic acid antagonists on bacterial growth. | | 1974 | 4212378 |
| triterpenoid carotenoids and related lipids. the triterpenoid carotenes of streptococcus faecium unh 564p. | 1. the occurrence of a novel series of triterpenoid carotenes in streptococcus faecium unh 564p is reported. 2. this series, which comprises the c(30) analogues of phytoene, phytofluene, zeta-carotene, 7,8,11,12-tetrahydrolycopene and neurosporene, appears to be analogous to the c(40) porter-lincoln series and a pathway of triterpenoid carotene dehydrogenation is proposed to account for the formation of these compounds. 3. two cis isomers of the c(30) analogue of neurosporene are described. 4. a ... | 1974 | 4212486 |
| triterpenoid carotenoids and related lipids. triterpenoid monohydroxy- and monoglucosyloxy-carotenoids from streptococcus faecium unh 564p. | 1. the characterization of two novel triterpenoid xanthophylls occurring in streptococcus faecium unh 564p is described. 2. both are derived formally, and probably biosynthetically, from the c(30) analogue of neurosporene and have been identified as 4-hydroxy-4,4'-diaponeurosporene and its glucoside, 4-d-glucopyranosyloxy-4,4'-diaponeurosporene. 3. problems associated with the use of specific glucosidases in defining the anomerism of carotenoid glucosides are discussed. | 1974 | 4212487 |
| [evaluation of preservative substances for the prevention of microbial growth in the urine]. | | 1974 | 4212651 |
| antibody affinity. vi. synthesis of bivalent lactosyl haptens and their interaction with anti-lactosyl antibodies. | | 1974 | 4212947 |
| beta-glucuronidase in the streptococcal groups b and d. | | 1974 | 4212968 |
| frequencies of streptococci of groups a, b, c, d, and g in urethra and cervix swab specimens from patients with suspected gonococcal infection. | | 1974 | 4213121 |
| hematogenous streptococcus faecalis pyelonephritis in the rat. a histologic, immunopathologic and bacteriologic study. | the demonstration of bacterial antigens in active pyelonephritis in man has been inconsistent. in this paper we have studied 110 rats with experimental pyelonephritis induced by a single intravenous injection of streptococcus faecalis. the animals were studied at intervals up to 1 year; bacteremia, urine and renal parenchymal bacterial counts were monitored. in these animals it was observed that bacteriuria and positive bacterial cultures of renal tissue persisted up to 1 year in some rats. bact ... | 1974 | 4213138 |
| inhibition of mammalian dihydrofolate reductase by selected 2,4-diaminiquinazolines and related compounds. | | 1974 | 4213189 |
| mesoionic purinone analogs. 7. in vitro antibacterial activity of mesoionic 1,3,4-thiadiazolo(3,2-a)pyrimidine-5,7-diones. | | 1974 | 4213245 |
| methotrexate analogs. 3. synthesis and biological properties of some side-chain altered analogs. | | 1974 | 4213249 |
| microbiological changes in the uneviscerated bird hung at 10 degrees c with particular reference to the pheasant. | | 1974 | 4213252 |
| quinazolines as inhibitors of dihydrofolate reductase. 2. | | 1974 | 4213339 |
| studies on antiseptic soap. | | 1973 | 4213403 |
| the metabolism of methotrexate in lactobacillus casei and rat liver and the influence of methotrexate on metabolism of folic acid. | | 1974 | 4213458 |