Itziar Urizar-Arenaza

Learn More
OBJECTIVE To investigate the presence of angiotensin II type 2 receptor (AT2R) in human spermatozoa and its implication in sperm fertility status. DESIGN We carried out expression assays for AT2R by reverse transcription-polymerase chain reaction, Western blot, immunofluorescence, and flow cytometry techniques in human sperm cells. Percentage of(More)
The presence of endogenous opioid peptides in different testicular cell types has been extensively characterized and provides evidence for the participation of the opioid system in the regulation of testicular function. However, the exact role of the opioid system during the spermatogenesis has remained controversial since the presence of the mu-, delta-(More)
The acrosome reaction occurs in vivo following sperm capacitation and is essential for the acquisition of sperm fertilization ability. However, little is known about the molecular identity of the physiological acrosome reaction regulators. In addition to progesterone, which is produced by cumulus oophorus cells and known to regulate acrosome reaction by(More)
  • 1