background: it is estimated that about 50% of causes of recurrent pregnancy loss (rpl) cases remain unknown. sperm factors are suggested to have probable role in cases with rpl. objective: the goal was to determine the possible relationship between semen bacterial contaminations with unexplained rpl. also, the correlation between number of bacterial colony and sperm chromatin condensation was e...

background: various approaches have been used in the attempts to improve the quality of frozen–thawed mouse sperms. according to literatures, it seems that hyaluronic acid (ha) has an important role on the permeability and motility of sperms and their interaction with gametes. objective: for evaluation of ha supplementation on sperm characteristics and fertilization capability, we investigated ...

We read with great interest an article by Shokri et al. entitled "Effects of Wi-Fi (2.45 GH z) exposure on apoptosis, sperm parameters and testicular histomorphometry in rats: a time course study" that is published in the latest issue of the Cell Journal (Vol.17, 2015: 322-331). In this article, Shokri et al. have presented their findings obtained in an experiment on an animal model. These rese...

Difficulties in obtaining reproducible and accurate enumeration of circulating basophils with existing techniques have hampered investigation of this infrequent cell population. A new basophil staining method is described that employs alcian blue dye for staining of heparin within basophils at low pH and in the presence of lanthanum ions. Basophil recognition is facilitated by reducing nonspeci...

BACKGROUND Curcumin has shown to affect sperm motility and function in vitro and fertility in vivo. The molecular mechanism(s) by which curcumin affects sperm motility has not been delineated. Since modulation of intracellular pH (pHi) and plasma membrane polarization is involved in sperm motility, the present study was conducted to investigate the effect of curcumin on these sperm (human and m...

Potential sperm limitation has become a concern for blue crabs Callinectes sapidus in Chesapeake Bay. However, methods to quantify sperm in blue crabs are time intensive, which limits the sample size that can be obtained for sperm limitation studies. Our goal was to develop an efficient method for rapidly preparing spermathecae samples that more quickly quantifies sperm in blue crabs. Ultimatel...