Aldosterone and other mineralocorticoids increase citrate synthase activity in the kidney and enhance renal sodium reabsorption, but it is unclear whether the increased citrate synthase activity is involved in renal sodium transport. We used the Wistar-Furth rat, an inbred strain found to be deficient in renal citrate synthase activity, as an experimental model to investigate this issue. We con...

Citrate transport in Bacillus subtilis is dependent on the presence of Mgz+. Other divalent cations like MnZ+, Co2+, or Ni2+ can replace magnesium ions. 2*Mg2+ or j4Mn2+ are taken up by the cells simultaneously with the uptake of citrate. Cells which are not induced for citrate transport do not show the citrate-dependent uptake of either 64Mn2+ or 2sMg2+. Citrate transport and the citrate-depen...

Progression of autosomal-dominant polycystic kidney disease (ADPKD) in the heterozygous male Han:SPRD rat is dramatically slowed by ingestion of potassium or sodium citrate. This study examined the efficacy of delayed therapy with sodium citrate, the effect of sodium citrate therapy on kidney cortex levels of transforming growth factor-beta (TGF-beta), and the response to calcium citrate ingest...

Easy-to-form tin vacancies at the buried interface of tin-lead perovskites hinder performance low-bandgap perovskite solar cells (PSCs). Here, a synergistic strategy by incorporating potassium citrate (PC) into poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) hole-transport layer to passivate Sn-Pb PSCs is reported. PC neutralizes acidity PEDOT:PSS and stabilizes front surfa...

The isolation of Clostridium beijerinckii mutants that are more tolerant of butanol than the wild-type offered the opportunity to investigate whether the membrane activities which are required for maintaining the transmembrane DeltapH (the difference in pH between the cellular interior and exterior) are sensitive targets of butanol toxicity. The DeltapH was measured by the accumulation of [14C]...

The distribution of viruses inhabiting the coral mucus remains undetermined, as there is no suitable standardized procedure for their separation from this organic matrix, principally owing to its viscosity and autofluorescence. Seven protocols were tested, and the most efficient separations were obtained from a chemical treatment requiring potassium citrate.

To the Editor: 1. Millan A, Conte A, Garcia-Ease A, Grases F. Determination of citrate in urine by simple direct photometry [Tech Briefi. Clin Chem 1987;33:1259-60. 2. Ogawa Y, Morozumi M, Tanaka T, Yamaguchi K. Determination of urinary citrate by ion chromatography. J Urol 1986;135:178-81. 3. Kok DJ, Papapoulos SE, Bijvoet OLM. Excessive crystal agglomeration with low citrate excretion in recu...

The injectability of Portland cement (PC) with several citrate additives was investigated for use in clinical applications such as vertebroplasty (stabilization of a fractured vertebra with bone cement) using a syringe. A 2-wt % addition of sodium or potassium citrate with PC significantly improved cement injectability, decreased cement setting times from over 2 h to below 25 min, while increas...