OAT	oligo-astheno-teratozoospermia
Ct	cycle threshold
FITC	-dUTP fluorescein isothiocyanate-2′-deoxyuridine-5-triphosphate
IL	interleukin
ICSI	intracytoplasmic sperm injection
IVF	in vitro fertilization
NP	non-progressive
PBS	phosphate-buffered saline
PI	propidium iodide
PR	rapid progressive
ROS	reactive oxygen species
%SDF	percentage of sperm DNA fragmentation
SDF	sperm DNA fragmentation
STA	sexually transmitted agents
STI	sexually transmitted infection
TNF-α	tumor necrosis factor-α