July 2022 in “Zenodo (CERN European Organization for Nuclear Research)” In this animal study, methanolic extract of *Cordia plathytyrsa* increased testosterone synthesis in male rats but had limited effects on metabolic parameters, while *Piptadeniastrum africanum* raised triglycerides and both extracts did not cause oxidative stress.
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October 2012 in “The International Journal of Biochemistry & Cell Biology” In this study, testosterone protected female embryonic heart cells from metabolic stress by being converted into metabolites that activate estrogen receptors and up-regulate certain mitochondrial channel proteins.
January 2024 in “Life sciences” This study observed that in spontaneously hypertensive rats, testosterone's effects on endothelium-dependent vasodilation involved reduced nitric oxide levels, increased oxidative stress, and greater reliance on endothelium-dependent hyperpolarization, with variations in these responses noted when testosterone was combined with either anastrozole or finasteride.
August 2025 in “International Journal of Biochemistry Research & Review” In this study, G. brevis and M. myristica, alone or together, improved hematological and testicular antioxidant parameters in male rats with finasteride-induced reproductive toxicity, showing potential protective effects against oxidative stress and supporting therapeutic use for related male reproductive disorders.
July 2026 in “Veterinary Medicine and Science” In this study, Quercetin-loaded black seed oil nanoemulsion effectively mitigated testosterone-induced testicular oxidative stress and inflammation in rats undergoing exercise and restraint stress, with improved antioxidant levels and reduced inflammatory markers compared to other treatment groups.