a simple, sensitive and accurate method for spectrophotometric determination of dalacinphosphatehas been established. the method is based on the reduction of atomic absorptioncalcium ion by phosphate. because, there is a phosphate mole in every dalacin mole structureand with measurement of phosphate, dalacin is beyond measurement too. therefore, the reactionbetween acidic hydrolysis products of...

A simple, sensitive and accurate method for spectrophotometric determination of Dalacinphosphatehas been established. The method is based on the reduction of atomic absorptioncalcium ion by phosphate. Because, there is a phosphate mole in every Dalacin mole structureand with measurement of phosphate, Dalacin is beyond measurement too. Therefore, the reactionbetween acidic hydrolysis products of...

Specific methylases that have the properties of deoxyribonucleic acid (DNA) modification enzymes have been isolated from Haemophilus influenzae strain Rd. Two activities ((Methylase IIa and methylase III) were found to protect transforming DNA of H. parainfluenzae from the action of H. influenzae restriction enzymes. To determine the specificty of the protection, a procedure based on biological...

The intestinal absorption of oral-anti diabetic drugs in type-II Diabetes mellitus is altered when concomitantly administered with other drugs like, antacids, antinuclear drugs, antibiotics and others. A randomized cross over study with two phases and a washout period of 4 weeks was carried out to evaluate the bioavailability of natiglinide with clindamycin.The study has been approved by Instit...

Streptovaricin' is a complex of closely related antibiotics which has received extensive study in our laboratories because of its broad in vitro antibacterial spectrum, and its in vivo activity against experimental infections of mice and guinea pigs with virulent strains of Mycobacterium tuberculosis (Siminoff et al., 1957; Whitfield et al., 1957; Rhuland et al., 1957). A number of interesting ...

Organisms of the genus Bacteroides occur as commensals in the oropharynx and female genital tract and are the predominant commensals of the large bowel (Wilson and Miles, 1964; Cowan and Steel, 1965). They are important causes of infection in and around these sites. Severe bacteroides infections are unusual but dangerous, and an important aspect of treatment is the correct choice of antibiotic....

phosphorus solubilizing microorganisms are capable of transforming insoluble phosphorus (p) forms to soluble and bioavailable p. the aim of the present study was to isolate p solubilizing bacteria from forest soils around the rock phosphate (rp) mine of koh-e-sepidlar in kohgiluyeh and boyer ahmad province and evaluate their ability in sperber culture medium and wheat straw medium in the presen...

phosphorus (p) is one of the most vital elements for all living organisms which acts as aconstituent of essential biomolecules such as nucleic acids, phospholipids, and phosphosugars,and as a major contributor to almost all metabolic reactions including photosynthesis,respiration, and energy delivery. it is one of the most needed nutrients for plant growth anddevelopment. despite high levels of...

glucose 6- phosphate dehydrogenase from streptomyces aureofaciens was purified andinactivated by pyridoxal 5′-phosphate (plp). the inactivation was a pseudo-first order and time-dependentreaction. complete inactivation was achieved at 0.2mm plp within 16 minutes. the type of inhibition wascompetitive with respect to glucose 6- phosphate. spectral characteristics of plp-enzyme complexcorresponde...