research Severe Hyperandrogenism in a Premenopausal Woman With an Imaging-Negative Leydig Cell Tumor
A woman's severe male hormone excess was caused by a small, hard-to-find ovarian tumor.
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research Hirsutism Due to Bilateral Leydig Cell Tumors
A woman's severe hirsutism was caused by Leydig cell tumors in her ovaries, which improved after surgery.
research Hyperandrogenism Caused by Leydig Cell Tumor of the Ovary
A woman's excess male hormone symptoms were caused by a rare benign tumor in her ovary.
research Virilization in a Postmenopausal Woman: Ovarian Leydig Cell Tumor
A postmenopausal woman's virilization was caused by a rare ovarian tumor that was hard to detect but was successfully treated with surgery.
research Epigenetic Effects of Finasteride on Human Leydig Cells
Finasteride may cause lasting sexual issues by altering specific genes in human cells.
research Rare Case of Leydig Cell Tumor with Type I Diabetes Mellitus Causing Female Pattern Hair Loss
Woman with diabetes had hair loss due to rare ovarian tumor; surgery improved hair growth.
research Sertoli-Leydig Cell Tumors: Hormonal Profile After Dynamic Test with GnRH Analogue Triptorelin Represents a Useful Tool to Evaluate Tumoral Hyperandrogenism
Triptorelin helps evaluate hormone production in Sertoli-Leydig cell tumors.
research Ovarian Vein Sampling, and Serum and Urine Testosterone Monitoring in Ovarian Leydig Cell Tumors: A Report of Two Cases
Ovarian vein sampling helped diagnose rare ovarian tumors causing high testosterone, and surgery to remove the tumors lowered the testosterone levels.
research Sertoli-Leydig Cell Ovarian Tumor: A Rare Cause of Virilization and Androgenic Alopecia
A rare ovarian tumor caused high testosterone, hair loss, and missed periods, but surgery fixed these issues and led to pregnancy.
research Sertoli-Leydig Tumor in a 17-Year-Old Girl: A Case Report
A 17-year-old girl was diagnosed with a rare ovarian tumor, emphasizing the need for fertility preservation and psychosocial care.
research Sertoli-Leydig Cell Tumor: A Rare Cause of Androgenic Alopecia in Postmenopausal Women
A rare ovarian tumor caused hair loss in a post-menopausal woman, which almost completely stopped after surgery.
research Finasteride Blocks Progesterone Synthesis in MA-10 Leydig Tumor Cells
Finasteride blocks progesterone production in specific tumor cells, potentially causing side effects.
research A Rare Case of Leydig Cell Tumor Resulting in Female Pattern Hair Loss
research Finasteride Blocks Progesterone Synthesis in MA-10 Leydig Tumor Cells
research Isosexual Precocious Pseudopuberty Secondary to a Testosterone-Secreting Leydig Cell Testicular Tumor: True Isosexual Development Early After Surgery
A boy's early puberty caused by a testicular tumor returned to normal after surgery.
research Androgens
Testosterone is made by Leydig cells, is active when not bound to proteins, and works by binding to receptors in muscles and other tissues.
research Intratesticular Control of Steroidogenesis
The testes control steroid production through complex interactions involving various cells and signaling molecules.
research 46,XY DSD Due to Impaired Androgen Production
Impaired androgen production in 46,XY DSDs causes ambiguous genitalia and requires long-term care.
research Basics of Androgen Synthesis and Action
Androgens like testosterone are important hormones for both men and women, made differently in each sex and affecting the body by regulating genes and quick interactions with cell components.
research Curcumin Derivatives Inhibit Testicular 17β-Hydroxysteroid Dehydrogenase 3
Curcumin and its derivatives can block an enzyme important for making testosterone, with one derivative being particularly strong.
research Hyperandrogenism from an Ovarian Interstitial-Cell Tumor in an Alpaca
An alpaca acted like a male and couldn't have babies because of a benign tumor in its ovary that caused high testosterone levels.
research Virilizing Ovarian Steroid Cell Tumor in a 40-Year-Old South Indian Female: A Case Report
A woman's masculine symptoms were caused by an ovarian tumor, which improved after surgery.
research Virilizing Ovarian Tumor in a Woman with an Adrenal Nodule
A woman with high testosterone and an adrenal nodule had an ovarian tumor causing her symptoms, which improved after the tumor was removed.
research Physiological and Histological Study of the Effect of Finasteride Drug (Prostacare) on the Fertility of Albino Male Rats
Finasteride significantly reduces fertility in male rats.
research Testicular Steroidogenesis: Production and Regulation of Testosterone and Dihydrotestosterone
Genetic defects in testosterone production can cause hormonal and developmental disorders, and more research is needed to understand androgen regulation and develop safer treatments.
research Androgenic Alopecia Revealing an Androgen-Secreting Ovarian Tumor
An 80-year-old woman's severe hair loss was caused by a hormone-secreting ovarian tumor.
research Endocrine Functions of the Testes
The testes produce important hormones like testosterone and others that play key roles in male body functions.
research Reproductive System, Male: Biology of Spermatogenesis and Toxicology
The document explains how sperm cells are produced, the role of testosterone in this process, and how toxins can reduce sperm count and fertility.
research Finasteride and Male Fertility
Finasteride may decrease semen quality but not harm sperm production, and stopping the drug can improve semen quality; hyperprolactinemia can cause infertility but is treatable with medication.
research Postmenopausal Hyperandrogenism Due to Rare Ovarian Tumor
A rare ovarian tumor caused high testosterone in a postmenopausal woman, resolved by surgery.