Effects of HBs exposure on early apoptotic events in human spermatozoa.

Note: [Ca2+]i: concentration of intracellular calcium; MPTP: mitochondrial permeability transition pore; FI: fluorescent intensity; cyt c: cytochrome c; ADP: Adenosine diphosphate; ATP: adenosine triphosphate. These data are representatives of five independent experimental replications (five individuals). The average values are expressed as mean ± SD. A paired t test was conducted to evaluate the impact of exposures of various concentration of HBs. *P