Related Experiment Video
Updated: Jun 28, 2026

11:51
Combining Behavioral Endocrinology and Experimental Economics: Testosterone and Social Decision Making
Published on: March 3, 2011
Hormonal replacement therapy and aging: Asian practical recommendations on testosterone supplementation
1Yonsei University College of Medicine, Korean Sexual and Men's Health Center, Han Central Bldg., 646-7 Yoksam-dong, Kangnam-ku 135-911 Seoul, Korea. youngkim2004@kornet.net
Asian Journal of Andrology
|December 30, 2003
Summary
Aging men experience hormonal changes, including declining testosterone. This summary provides practical guidelines for diagnosing and treating androgen deficiency in aging males to clarify common misconceptions.
Area of Science:
- Endocrinology
- Andrology
- Gerontology
Background:
- Aging is associated with significant alterations in gonadal and adrenal androgen production and growth hormone levels.
- The term 'partial endocrine deficiency in the aging male' (PEDAM) describes these hormonal changes.
- Key hormones affected include testosterone, dehydroepiandrosterone (DHEA), growth hormone, melatonin, thyroid hormones, and leptin.
Purpose of the Study:
- To address confusion and misunderstandings regarding the diagnosis and treatment of androgen deficiency in aging males.
- To provide practical criteria for the diagnosis and management of testosterone supplementation in aging men.
- To offer clinical considerations and Asian practical recommendations for testosterone supplementation.
Main Methods:
- Review of existing literature on hormonal changes associated with male aging.
- Analysis of clinical considerations for testosterone supplementation.
- Development of practical recommendations for diagnosis and treatment.
Main Results:
- Testosterone's effects on male bodily systems are well-researched, but its deficiency diagnosis and treatment remain areas of confusion.
- Practical criteria are needed to guide the appropriate use of testosterone therapy in aging men.
- Specific clinical considerations and regional recommendations are essential for effective management.
Conclusions:
- Clarifying the diagnosis and treatment of androgen deficiency is crucial for aging males.
- Evidence-based practical guidelines can help avoid misconceptions surrounding testosterone supplementation.
- Adopting standardized criteria and considering regional recommendations will improve patient care.
Related Concept Videos
Hormonal Regulation
Hormones regulate a significant portion of digestion through activation of the neuroendocrine system. The neuroendocrine system of digestion contains many different hormones all with multiple functions that are both, directly and indirectly, involved in digestion.
Hormonal Regulation
The renin-aldosterone system is an endocrine system which guides the renal absorption of water and electrolytes, thus managing blood pressure and osmoregulation. Activation of the system begins in the kidneys with a small cluster of cells adjacent to the afferent and efferent blood vessels of the renal corpuscle. As the nephrons are filtering blood, juxtaglomerular cells monitor blood pressure. If they detect a decrease in pressure, they release the hormone renin into the bloodstream.
Bone Disorders
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Testosterone: Functions and Regulation
The intricate hormonal interplay essential for male reproductive health begins with the release of gonadotropin-releasing hormone (GnRH) by the hypothalamus. This hormone prompts the pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). LH targets the Leydig cells in the testes, stimulating them to produce and release testosterone. In concert with testosterone, FSH acts on the Sertoli cells within the seminiferous tubules to facilitate the release of...
Menopause
Menopause, a natural biological process marking the end of a woman's fertility, typically occurs between the fifth and sixth decade of life. This phase is characterized by the exhaustion of the ovarian follicle pool, leading to less responsive ovaries despite the high levels of Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH). The consequential decrease in estrogen production results in symptoms like hot flashes, heavy sweating, headaches, hair loss, muscle pains, vaginal...
Aging
Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...

