Indomethacin decreases furosemide-induced natriuresis and diuresis on the neonatal kidney.

Indomethacin is used to pharmacologically occlude patent ductus arteriosus in preterm infants. It induces renal untoward effects and furosemide is administered simultaneously to counteract them. The effect of furosemide is blunted by indomethacin.

Alpha-tocopherol protects against the renal damage caused by potassium dichromate.

Exposure to hexavalent chromium (Cr(6+)) causes mutagenic, carcinogenic, and toxic effects, some of which have been associated with its oxidative capacity. In the kidney, Cr(6+) has been claimed to provoke necrosis of the proximal tubular cells. Our aim was to assess the functional involvement of the different segments that form the nephron in a model of acute renal failure caused by potassium dichromate and the participation of oxidative damage in this process.

A high-throughput colorimetric and fluorometric microassay for the evaluation of nitroimidazole derivatives anti-trichomonas activity.

Several nitroimidazole derivatives were synthesized and tested as possible trichomonicidal agents. A fast, simple, practical and reliable in vitro colorimetric method was applied to the screening of the nitroimidazole derivatives anti-trichomonas activity. The colorimetric technique was based on the use of Alamar blue as a redox-indicator.

Parathyroid hormone increases cytosolic calcium in neonatal nephron through protein kinase C pathway.

In mammals, neonatal positive calcium balance is required for adequate growth. Parathyroid hormone (PTH) plays a central role in this process mainly through its action on the distal nephron. We studied the effect of PTH on cytosolic calcium in distal segments from neonatal rat kidney.