Related Experiment Video
Updated: May 14, 2026

06:18
An In Vivo Estrogen Deficiency Mouse Model for Screening Exogenous Estrogen Treatments of Cardiovascular Dysfunction After Menopause
Published on: August 13, 2019
Estrogen synthesis and signaling pathways during aging: from periphery to brain
1Center for Hormone Advanced Science and Education (CHASE), Roskamp Institute, Sarasota, FL 34243, USA.
Trends in Molecular Medicine
|January 26, 2013
Summary
Estrogens are key female hormones with vital roles beyond reproduction. This review explores tissue-specific estrogen synthesis, signaling, and their impact on diseases like cardiovascular conditions, osteoporosis, Alzheimer's, and Parkinson's.
Area of Science:
- Endocrinology
- Molecular Biology
- Neuroscience
Background:
- Estrogens are primary female sex hormones with critical reproductive and non-reproductive functions.
- Estrogen synthesis occurs in various non-reproductive tissues, influencing diverse physiological actions.
- Understanding tissue-specific estrogen effects is crucial for comprehending various health conditions.
Purpose of the Study:
- To comprehensively review tissue and cell-specific estrogen synthesis and estrogen receptor signaling.
- To elucidate the distribution and signaling pathways of estrogen receptors.
- To explore the roles of estrogens in health and disease, including cardiovascular diseases, osteoporosis, Alzheimer's disease (AD), and Parkinson disease (PD).
Main Methods:
- Literature review focusing on estrogen synthesis and metabolism.
- Analysis of estrogen receptor distribution and signaling mechanisms.
- Examination of estrogen functions and their association with specific disorders.
Main Results:
- Estrogens exhibit diverse actions mediated by tissue-specific synthesis and receptor signaling.
- Estrogen signaling pathways are implicated in the pathophysiology of major diseases.
- Detailed understanding of estrogen's role in cardiovascular health, bone density, and neurodegenerative diseases.
Conclusions:
- Tissue-specific estrogen synthesis and signaling are fundamental to diverse physiological processes.
- Estrogen dysregulation contributes to significant health disorders, including cardiovascular diseases, osteoporosis, AD, and PD.
- This review offers insights into tissue-specific estrogen effects, enhancing understanding of their roles in disease.
Related Concept Videos
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...
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...
The Effect of Aging on Tissues
Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
Endocrine Signaling
Endocrine cells produce hormones to communicate with remote target cells found in other organs. The hormone reaches these distant areas using the circulatory system. This exposes the whole organism to the hormone but only those cells expressing hormone receptors or target cells are affected. Thus, endocrine signaling induces slow responses from its target cells but these effects also last longer.
Endocrine Signaling
Endocrine cells produce hormones to communicate with remote target cells found in other organs. The hormone reaches these distant areas using the circulatory system. This exposes the whole organism to the hormone but only those cells expressing hormone receptors or target cells are affected. Thus, endocrine signaling induces slow responses from its target cells but these effects also last longer.
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...

