Observational study - a human research study in which no experimental intervention or treatment is applied, and participants are simply observed over time Oxidative stress - a situation in which the production of reactive oxygen species exceeds the ability of an organism to eliminate or neutralize them Placebo - a chemically inactive substance Plaque - a deposit of fat, cholesterol, immune cells, fibrin (a clotting protein), and other substances that forms inside arterial walls Randomized controlled trial - a human research study in which participants are assigned by chance alone to receive either an experimental agent (the treatment group) or a placebo (the control group) Reactive oxygen species (ROS) - highly unstable oxygen-containing compounds that react easily with nearby cellular structures, potentially causing damage Test tube - a research experiment performed in a test tube, culture dish, or other artificial environment outside of a living organism
This study explains the preservation of sperm parameters in hypogonadal men on testosterone replacement therapy with concomitant low-dose human chorionic gonadotropin (hCG) Low-dose human chorionic gonadotropin maintains intratesticular testosterone in normal men with testosterone-induced gonadotropin suppression
33 , 17011715 e1705 (2021)
p53 and zinc: a malleable relationship
Zittermann A, Iodice S, Pilz S, Grant WB, Bagnardi V, Gandini S
