121 women with Polycystic Ovarian Syndrome and clomiphene citrate resistance underwent laparoscopic ovarian cautery, 63 patients were type I or typical PCOS with ovarian volume >8mL and 58 patients were type II PCOS with ovarian volume O.05). It therefore appears that the result of laparoscopic ovarian cauterization does not depend on ovary size in clomphene citrate resistant patients with...

Male Wistar-strain rats which had been fed a glycolic-acid diet developed severe nephrocalcinosis with urinary calculi within 4 weeks. Rats fed the same diet with citrate salts added had, however, either slight or no nephrocalcinosis without any stones in the urinary system. Nephrocalcinosis intermediate between those in the citrate groups and the glycolic-acid group, with some urinary calculi,...

The synthesis of aconitase in Bacillus subtilis wild-type and different citric acid cycle mutants has been studied and the influence of various growth conditions examined. Aconitase is induced by citrate and precursors of citrate and repressed by glutamate. Induction and repression counteract each other, and at equimolar concentrations of citrate and glutamate, aconitase synthesis is unaffected...

Measurement of the flux through the citrate fermentation pathway in resting cells of Lactococcus lactis CRL264 grown in a pH-controlled fermentor at different pH values showed that the pathway was constitutively expressed, but its activity was significantly enhanced at low pH. The flux through the citrate-degrading pathway correlated with the magnitude of the membrane potential and pH gradient ...

BACKGROUND The locking anticoagulant plays a decisive role in the patency of central venous catheters (CVCs) used for haemodialysis. During injection, the hydraulic effects inevitably cause lock solution to spill into the systemic circulation. Density differences between whole blood (WB) and the lock solution cause further gravity-induced seepage of lock solution. This is followed by an influx ...

Many theories have been proposed to account for the accumulation of citrate in selected strains of Aspergillus niger (Berry et al., 1977). Citrate accumulation was attributed by Ramakrishnan et al. (1955) to loss of aconitase and isocitrate dehydrogenase activity, but the presence of these enzymes was clearly demonstrated by La Nauze (1966). The presence of tricarboxylic acid-cycle enzymes thro...

Aspergillus niger has an innate ability to secrete various organic acids, including citrate. The conditions required for A. niger citrate overproduction are well described, but the physiological reasons underlying extracellular citrate accumulation are not yet fully understood. One of the less understood culture conditions is the requirement of growth-limiting iron concentrations. While this ha...

objective: to assess follicular development and endometrial growth using transvaginal sonography in spontaneous and clomiphene citrate induced (cc) cycles. materials and methods: one hundred consecutive couples with unexplained infertility were recruited for this cross sectional study from 2003 to 2005. patients were monitored for the first cycle with no medication while the laboratory routine ...

in order to evaluate the effects of short course administration of dexamethasone (dex) combined with clomiphene citrate (cc) in cc-resistant patients with polycystic ovary syndrome (pcas) and normal dheas, a prospective, double blind, placebo controlled, randomized study was undertaken at referral university hospitals, two-hundred and thirty women with pcos and normal dheas who failed to ovulat...

Lactococcus lactis subsp. lactis biovar diacetylactis CRL264 is a natural strain isolated from cheese (F. Sesma, D. Gardiol, A. P. de Ruiz Holgado, and D. de Mendoza, Appl. Environ. Microbiol. 56:2099-2103, 1990). The effect of citrate on the growth parameters at a very acidic pH value was studied with this strain and with derivatives whose citrate uptake capacity was genetically manipulated. T...