Related Experiment Video
Updated: May 5, 2026

Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies
Published on: January 10, 2025
Male reproductive hormone profile in Rwandan students
1Department of Medical Biology, School of Medicine, University of Rwanda, Huye, Rwanda.
Abstract:
To illustrate the male reproductive hormone profile, a study was conducted among healthy male university students living at Butare, Rwanda (altitude: 1 768 m, barometric pressure: 629 mm Hg). Venous blood was collected in the morning, after overnight fasting. Hormonal assays were performed by classical sandwich ELISA technique. Mean values (±standard deviation SD) were follicle-stimulating hormone FSH: 3.7 ± 1.6 IU l(-1) ; luteinising hormone LH: 3.6 ± 2.2 IU l(-1) ; and total testosterone: 21.0 ± 7.5 nm. The results compare well with findings of other studies.
More Related Videos
07:32Use of Galvanic Skin Responses, Salivary Biomarkers, and Self-reports to Assess Undergraduate Student Performance During a Laboratory Exam Activity
Published on: February 10, 2016
06:17Author Spotlight: Advancing Primatology Through Germ Cell Research and Genetic Modification Techniques
Published on: July 5, 2024
Related Concept Videos
Testosterone: Functions and Regulation
Signs of Puberty
Hormonal Regulation of the Menstrual Cycle
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
Infertility in Males
Overview of the Reproductive System
The gonads, or primary reproductive organs, produce gametes and sex hormones. In males, the testes produce spermatozoa and testosterone, which is responsible for developing secondary male sex characteristics, including a deeper voice, larger muscles, facial and body...
Gonadal and Placental Hormones
In males, testosterone is the primary gonadal androgen. It plays a central role in the maturation of male reproductive organs — the penis and testes. Additionally, testosterone is instrumental in the development of secondary sexual characteristics — a deep voice as well as facial and pubic hair...