| the microbiologic determination of serum folic acid activity. i. study of the assay system. | | 1972 | 4196347 |
| [analysis of folates in fetuses of control rats and of rats with folic acid deficiency]. | | 1972 | 4197174 |
| the effect of anticonvulsant therapy upon the absorption of folates. | | 1973 | 4197384 |
| formylation of folate as step in physiological folate absorption. | oral administration of folate analogues to rats is followed by a rise in plasma folate detectable only by micro-biological assay with lactobacillus casei, suggesting methylation of folate during absorption. when using the everted rat gut technique with folate (pteglu), dihydrofolate (h(2)pteglu), or tetrahydrofolate (h(4)pteglu) on the mucosal surface formyl folate (10-cho-pteglu, 10-cho-h(4)pteglu, 5-cho-h(4)pteglu) and methylfolate (5-ch(3)-h(4)pteglu) are recovered from the serosal fluid. thi ... | 1973 | 4197426 |
| folate content of diets in pregnancy: comparison of diets collected at home and diets prepared from dietary records. | | 1973 | 4197464 |
| synthesis of actinomycin d lactam, [1',1'-bis(l-threo- , -diaminobutyric acid)]actinomycin d. | | 1973 | 4197709 |
| plasmodium berghei: folic acid levels in mouse erythrocytes. | | 1973 | 4197972 |
| an automated method for microbiological assays. | | 1973 | 4197996 |
| cellular location of the lipoteichoic acids of lactobacillus fermenti nctc 6991 and lactobacillus casei nctc 6375. | | 1973 | 4198220 |
| regulation of c metabolism by l-methionine in saccharomyces cerevisiae. | 1. the concentrations of folate derivatives in aerobic cultures of saccharomyces cerevisiae (a.t.c.c. 9763) were determined by microbiological assay employing lactobacillus casei (a.t.c.c. 7469) and pediococcus cerevisiae (a.t.c.c. 8081). cells cultured in media lacking l-methionine contained higher concentrations of folate derivatives than cells grown in the same media supplemented with 2.5mumol of l-methionine/ml. the concentrations of highly conjugated derivatives were also decreased by suppl ... | 1972 | 4198357 |
| liver enzyme induction by anticonvulsant drugs, and its relationship to disturbed calcium and folic acid metabolism. | | 1973 | 4199214 |
| syntheses and biological activities of 7-ethyl-8-chloro-10-(1'-d-ribityl) isoalloxazine and 7-chloro-8-ethyl-10(1'-d-ribityl) isoalloxazine, analogs of riboflavin. | | 1973 | 4199215 |
| the turnover of folate coenzymes in murine lymphoma cells. | | 1973 | 4199256 |
| pathogenic lactobacilli. | | 1973 | 4199269 |
| stimulation of lactic acid bacteria by a micrococcus isolate: evidence for multiple effects. | growth of, and rate of acid production by, six cultures of lactic acid bacteria were increased in the presence of micrococcus isolate f4 or a preparation of its capsular material. concentrations of hydrogen peroxide found in pure cultures of the lactic acid bacteria were not detectable, or were greatly reduced, in mixed culture with micrococcus isolate f4. the capsular material was not as effective as whole cells in preventing accumulation of h(2)o(2). catalase stimulated growth of, and the rate ... | 1973 | 4199337 |
| differential counting in mixed cultures with coulter counters. | a critical comparison of coulter, viable, and microscope counts for several mixed cultures of microorganisms has been made. this investigation shows that coulter counting can provide reliable estimates of microbial numbers in mixed cultures. precautions and limitations of coulter counting in mixed cultures are discussed. | 1973 | 4199341 |
| trimethoprim-sulphamethoxazole effect on folate metabolism. | | 1973 | 4199529 |
| trimethoprim-sulphamethoxazole: long-term therapy and folate levels. | | 1973 | 4199530 |
| radioassay of serum folate. | | 1973 | 4200431 |
| concordance of radioassay and microbiological assay in the study of the ethanol-induced fall in serum folate level. | | 1973 | 4200474 |
| significance of large red blood cells. | | 1973 | 4200575 |
| relationships among urinary aminoimidazolecarboxamide in urine and folate, and vitamin b12 concentrations in serum. | | 1973 | 4200767 |
| effect of diamide on growth of selected bacteria. | | 1973 | 4200867 |
| survival of certain microorganisms subjected to rapid and very rapid freezing on membrane filters. | | 1973 | 4201116 |
| methotrexate analogs. 2. a facile method of preparation of lipophilic derivatives of methotrexate and 3',5'-dichloromethotrexate by direct esterification. | | 1973 | 4201424 |
| a comparison of the fluorometric and microbiological assays for estimating riboflavin content of blood and liver. | | 1973 | 4201455 |
| calorimetric studies of thymidylate synthesis. | | 1973 | 4201495 |
| the availability of food folate in man. | | 1973 | 4201754 |
| the growth of mixed population of lactobacillus casei and nisin producing strain of streptococcus lactis in batch and continuous cultures. | | 1973 | 4201957 |
| [folate levels during long-term therapy with trimethoprim and sulphadiazine]. | | 1973 | 4202131 |
| [endocarditis caused by diphtheroids and lactobacilli (author's transl)]. | | 1973 | 4202412 |
| folate studies in underprivileged children with epilepsy. | | 1973 | 4202536 |
| direct radiochemical assay for serum folate: competition between 3h-folic acid and 5-methyltetrahydrofolic acid for a folate binder. | | 1974 | 4202673 |
| an automated method for the microbiological assay of serum pyridoxal. | a fully automated method for the measurement of serum pyridoxal has been developed. acid phosphatase was used for dephosphorylation and precipitation of the serum proteins was not required. a chloramphenicol-resistant strain of l. casei was used as the test organism and this removed the need for sterilization. the method gives highly reproducible results, and is suitable for population and institutional studies. | 1973 | 4203205 |
| effect of incubation time on folate values. | | 1974 | 4203283 |
| synthesis and biological evaluation of isofolic acid. | | 1974 | 4203368 |
| syntheses and biological activities of 7-ethyl-8-bromo-10-(1'-d-ribityl)isoalloxazine and 7-bromo-8-ethyl-10-(1'-d-ribityl)isoalloxazine, analogs of riboflavin. | | 1974 | 4203369 |
| [biosynthesis of diacetyl by lactic acid bacteria]. | | 1972 | 4203436 |
| mechanism of interaction of thymidylate synthetase with 5-fluorodeoxyuridylate. | | 1974 | 4203910 |
| microbiological assay for purine analogues with lactobacillus casei. | | 1973 | 4203926 |
| preparation of sphaeroplasts from lactobacillus casei by growth with low concentration of benzylpenicillin. | | 1973 | 4204235 |
| 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 |
| studies of folic acid compounds in nature. 3. folic acid compounds in cabbage. | | 1973 | 4204493 |
| estimation of serum and red cell folate by a simple radiometric technique. | | 1973 | 4204791 |
| structures of reversible and irreversible complexes of thymidylate synthetase and fluorinated pyrimidine nucleotides. | | 1974 | 4205029 |
| folate coenzymes of lactobacillus casei and streptococcus faecalis. | | 1974 | 4205313 |
| the carboxypeptidase-dependent inactivation of thymidylate synthetase. | | 1974 | 4205316 |
| [respective values of serum folic, erythrocyte and folinic activities as a test of folate storage and metabolism in the normal and premature infant]. | | 1973 | 4205341 |
| trouble-free microbiologic serum and red cell folate assays. | | 1974 | 4205535 |
| [formation of dl-lactic acid by lactobacilli and characterization of a lactic acid racemase from several streptobacteria (author's transl)]. | | 1973 | 4205608 |
| effect of microbial interactions on in vitro plaque formation by streptococcus mutans. | | 1974 | 4205715 |
| methylation of 4-thio-2'-deoxyuridylate by thymidylate synthetase. | | 1973 | 4205909 |
| investigation of the protease forming ability of serratia marcescens and one of its mutant strains. | | 1973 | 4205979 |
| superiority of simplified assay for folate with lactobacillus casei atcc 7469 over assay with chloramphenicol-adapted strain. | direct assay of serum folate by mixing serum with a mixture of l. casei and medium without autoclaving was found to provide serum folate results similar to those by extraction of serum with heat. this procedure was found more reliable than that using the same technique with chloramphenicol and a strain of l. casei adapted to grow in this material. a portion of apparent folate activity assayed in haemolysates by such direct assay was found to be due to material other than folate. it is recommende ... | 1973 | 4206241 |
| transport of 5-methyltetrahydrofolic acid into the cerebrospinal fluid in man. | | 1974 | 4206456 |
| bacterial colonial microstructure. | | 1972 | 4206472 |
| effects of the diastereoisomers of methylenetetrahydrofolate on the reaction catalyzed by thymidylate synthetase. | | 1974 | 4207357 |
| dihydrofolate reductase: low-resolution mass-spectrometric analysis of an elastase digest as a sequencing tool. | an elastase digest of a protein of unknown structure, dihydrofolate reductase, was studied by mass spectrometry. this soluble digest contained a large number of small peptides in different yields, within the ideal molecular-weight range (200-1200) for mixture-analysis mass spectrometry. sequences of the major component peptides in the digest are reported. | 1974 | 4207389 |
| [use of biolactin in the diet of young children with dysentery]. | | 1973 | 4207564 |
| [genetic studies on temperature-sensitive mutants of lactobacillus casei phage j1 (author's transl)]. | | 1973 | 4207638 |
| [use of the fluorescent antibody method for microbiological control in the food-processing industry (review)]. | | 1972 | 4207751 |
| an investigation by autoradiography and electron microscopy of the localization of prenols in lactobacillus casei. | | 1974 | 4207873 |
| location of double bonds in long chain esters by methoxymercuration-demercuration followed by mass spectroscopy. | | 1974 | 4207878 |
| separation of folates from antibiotics using triethylamino cellulose. | | 1974 | 4208122 |
| the synthesis of polyribitol phosphate. ii. on the mechanism of polyribitol phosphate polymerase. | | 1974 | 4208141 |
| fructose-1,6-diphosphate aldolase from lactobacillus casei. i. functional similarities with the rabbit muscle aldolase. | | 1974 | 4208172 |
| fructose-1,6-diphosphate aldolase from lactobacillus casei. ii. multiple forms and their characteristics. | | 1974 | 4208173 |
| cross-resistance and collateral susceptibility to antifolic antimalarial compounds. | series of strains of streptococcus faecium atcc 8043, lactobacillus casei atcc 7469, and pediococcus cerevisiae atcc 8081 with increasing resistance to the active antifolate antimalarial drugs chlorguanide triazine (cgt), pyrimethamine (pm), and trimethoprim (tmp) were isolated. these mutant strains, stable for at least 3 to 5 years, were examined for cross-resistance and collateral susceptibility to the above compounds and to methotrexate (mtx). generally, they exhibited cross-resistance to all ... | 1972 | 4208273 |
| synthesis and antifolate activity of 10-deazaminopterin. | | 1974 | 4208480 |
| synthesis of 1-deaza-n10-methylfolic acid and related compounds. | | 1974 | 4208481 |
| antimicrobial activity of 8-deazafolic acid. | | 1974 | 4208536 |
| serum folic acid levels and pregnancy in south australia. a study of the factors associated with low serum folic acid levels with particular reference to racial groups and lactation. | | 1974 | 4208611 |
| purification and properties of t2 bacteriophage-induced thymidylate synthetase. | | 1974 | 4208776 |
| [pathogenicity of lactobacilli]. | | 1974 | 4209114 |
| methylmalonic acid excretion studies. | | 1973 | 4209262 |
| evidence for cellular control in the synthesis of acetoin or alpha-ketoisovaleric acid by microorganisms. | | 1974 | 4209365 |
| [the presence of malic enzyme and malo-lactic enzyme in various lactic acid bacteria (author's transl)]. | | 1974 | 4209828 |
| assay of serum folate: difference in serum folate values obtained by l. casei bioassay and competitive protein-binding assay. | | 1974 | 4210303 |
| simple, inexpensive procedure for the disruption of bacteria. | small volumes (1 to 2 ml) of bacterial cultures, with turbidities ranging from 3 to 10, were disrupted 50 to 90% (measured as a decrease in turbidity) within 2 min, by shaking them on a vortex-type mixer in the presence of glass beads. this method of disrupton was effective for cells in the following genera: streptococcus, lactobacillus, staphylococcus, bacillus, and escherichia. after low-speed centrifugation, the resulting extract can be used as potential sources for enzymes, transforming deox ... | 1974 | 4210727 |
| vitamin b6 metabolism in women using oral contraceptives. | | 1974 | 4211018 |
| comparative biochemistry of p-hydroxymethyl-l-phenylalanine: in vivo studies. | | 1974 | 4211880 |
| polyglutamyl derivatives of folate as substrates and inhibitors of thymidylate synthetase. | | 1974 | 4212249 |
| 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 |
| studies of folate compounds in nature. folate compounds in rat kidney and red blood cells. | | 1974 | 4212359 |
| synergistic action of increased oxygen tensions and paba-folic acid antagonists on bacterial growth. | | 1974 | 4212378 |
| the effect of different serum concentrations of antimicrobial agents on the lactobacillus casei folate assay. | | 1974 | 4212402 |
| [action of drugs on phagocytosis: the atropine-acetylcholine combination]. | | 1973 | 4212530 |
| growth and active biomass production of lactobacillus casei. | | 1973 | 4213130 |
| methotrexate analogs. 3. synthesis and biological properties of some side-chain altered analogs. | | 1974 | 4213249 |
| microbiologic assay of erythrocytic folate content by the aseptic addition method. | | 1974 | 4213251 |
| prevention of folate deficiency by food fortification. v. a pilot field trial of folic acid-fortified maize meal. | | 1974 | 4213309 |
| the metabolism of methotrexate in lactobacillus casei and rat liver and the influence of methotrexate on metabolism of folic acid. | | 1974 | 4213458 |
| high molecular weight complexes of folic acid in mammalian tissues. | | 1974 | 4213566 |
| pyridoxal and folate deficiency in alcoholics. | | 1974 | 4213768 |
| pyridoxal, vitamin b12 and folate metabolism in women taking oral contraceptive agents. | | 1974 | 4213769 |
| a comparison of seven strains of lactobacillus casei var. rhamnosus in relation to their use in the microbiological assay of serum folate. | | 1974 | 4214109 |
| variations in the quaternary structure of three lactic acid bacteria aldolases. evidence for the existence of a class i and class ii aldolase in lactobacillus casei. | | 1974 | 4214814 |
| synthesis and antifolate activity of isoaminopterin. | | 1974 | 4214924 |
| pyrimido(4,5-c)isoquinolines. 2. synthesis and biological evaluation of some 6-alkyl-,6-aralkyl-, and 6-aryl-1,3-diamino-7,8,9,10-tetrahydropyrimido(4,5-c)isoquinolines as potential folate antagnoists 1. | | 1974 | 4214925 |
| effect of lipophilic substituents on some biological properties of indoles. | | 1974 | 4214926 |