نتایج جستجو برای: citrate
تعداد نتایج: 15312 فیلتر نتایج به سال:
background: polycystic ovary syndrome (pcos) is associated with approximately 75% of women who suffer from infertility due to anovulation. additionally, around 20– 25% of anovulatory women with pcos do not respond at all to clomiphene citrate and are considered to be “clomiphene– resistant”. aromatase inhibitors have been suggested as an alternative treatment to clomiphene as the discrepancy be...
For chronic central venous dialysis catheters, the standard method for maintaining catheter patency between treatments is to instill (lock) catheters with 5000 - 10 000 units of heparin in each lumen. Sodium citrate (citrate) is an anticoagulant with intrinsic antibacterial activity (at 20% concentration or higher). Citrate has only transient anticoagulant effects if accidentally infused to the...
The biosynthesis of the 2'-(5"-phosphoribosyl)-3'-dephospho-coenzyme A (CoA) prosthetic group of citrate lyase (EC 4.1.3.6), a key enzyme of citrate fermentation, proceeds via the initial formation of the precursor 2'-(5"-triphosphoribosyl)-3'-dephospho-CoA and subsequent transfer to apo-citrate lyase with removal of pyrophosphate. In Escherichia coli, the two steps are catalyzed by CitG and Ci...
Citrate is present in many natural substrates, such as milk, vegetables and fruits, and its metabolism by lactic acid bacteria (LAB) plays an important role in food fermentation. The industrial importance of LAB stems mainly from their ability to convert carbohydrates into lactic acid and, in some species, like Lactococcus lactis and Leuconostoc mesenteroides, to produce C4 flavor compounds (di...
Citrate synthetase activity was determined in samples of commercially available citrate condensing enzyme. We measured the amount of radioactive citrate formed from the condensation of carbon-14 labeled acetyl CoA and oxaloacetate. The labeled citrate was oxidized by oxidative bromination; 14C02 evolved was collected and represented the amount of citrate synthesized. Enzyme activity as low as 1...
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