Menstrual physiology: implications for endometrial pathology and beyond
Jacqueline A Maybin1, Hilary O D Critchley2
1MRC Centre for Reproductive Health, University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK.
Human Reproduction Update
|August 9, 2015
Summary
Understanding endometrial repair and regeneration is key to treating heavy menstrual bleeding. Further research into menstrual physiology offers broad translational benefits for various tissue sites.
Area of Science:
- Reproductive biology and gynaecology
- Tissue regeneration and repair mechanisms
Background:
- The endometrium undergoes monthly inflammation and shedding during menstruation.
- Remarkable endometrial repair allows for successful embryo implantation.
- Menstrual irregularities like heavy bleeding stem from aberrant menstrual physiology.
Purpose of the Study:
- To explore the physiological processes of the endometrium during menstruation.
- To identify new therapeutic targets for gynaecological disorders.
- To highlight translational applications of endometrial research in other tissues.
Main Methods:
- Comprehensive literature search of PubMed and Cochrane databases.
- Inclusion of original and review articles published in English until April 2015.
- Keywords: endometrium, menstruation, endometrial repair, regeneration, angiogenesis, inflammation, heavy menstrual bleeding, menorrhagia.
Main Results:
- Menstruation is a rare phenomenon, unique to humans and a few other species.
- Human menstruation is linked to preimplantation decidualization, aiding embryo selection.
- Studying endometrial inflammation, vascular changes, and repair offers therapeutic targets for gynaecological disorders.
Conclusions:
- Investigating normal and abnormal menstruation is crucial for developing new medical treatments.
- Interdisciplinary collaboration can enhance the therapeutic potential of endometrial research.
- Understanding endometrial dynamics has significant implications for reproductive health and beyond.
More Related Videos
Related Concept Videos
Menses Phase
1.4K
The uterine cycle begins with the menstrual phase, which is considered day one of the cycle and typically lasts about five days. This phase is characterized by the degeneration and shedding of the stratum functionalis, the functional layer of the endometrium.
When fertilization does not occur, the corpus luteum deteriorates, causing a significant drop in the levels of estrogen and progesterone in the body. This hormonal decrease triggers the release of prostaglandins, which cause the uterine...
When fertilization does not occur, the corpus luteum deteriorates, causing a significant drop in the levels of estrogen and progesterone in the body. This hormonal decrease triggers the release of prostaglandins, which cause the uterine...
1.4K
The Menstrual Cycle
6.3K
The menstrual cycle is a recurrent sequence of changes in the uterine endometrium, specifically its functional layer, the stratum functionalis. This cycle prepares the uterus for potential pregnancy. This cycle typically spans 21–35 days, averaging 28 days, and aligns with the ovarian cycle, regulated by fluctuating levels of ovarian hormones, primarily estrogen and progesterone.
The menstrual phase occurs from days 1 to 5 and involves the shedding of the stratum functionalis, as a...
The menstrual phase occurs from days 1 to 5 and involves the shedding of the stratum functionalis, as a...
6.3K
Hormonal Regulation of the Menstrual Cycle
2.3K
The ovarian cycle regulates endometrial changes throughout a single menstrual cycle via the coordinated action of gonadotrophin-releasing hormone (GnRH) and gonadotrophins.
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...
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...
2.3K
Secretory Phase
2.7K
The secretory phase of the menstrual cycle, spanning from day 14 to 28 in a typical 28-day cycle, is a period of significant physiological changes in the female reproductive system. This phase commences immediately after ovulation and is characterized by the preparation of the endometrium for potential embryo implantation.
Following ovulation, the corpus luteum, a temporary endocrine structure, produces progesterone and estrogens. These hormones stimulate the growth and coiling of endometrial...
Following ovulation, the corpus luteum, a temporary endocrine structure, produces progesterone and estrogens. These hormones stimulate the growth and coiling of endometrial...
2.7K
Disorders of the Female Reproductive System
4.8K
The female reproductive system can be affected by several disorders, including Premenstrual Syndrome (PMS), Premenstrual Dysphoric Disorder (PMDD), endometriosis, and various forms of cancer. PMS and PMDD are cyclical conditions that cause physical and emotional distress, with symptoms that include edema, mood swings, and food cravings. PMDD is a more severe form of PMS characterized by increased symptom severity that peaks during the luteal phase and tends to improve or resolve shortly after...
4.8K
Proliferative Phase
1.8K
The proliferative phase typically occurs after menstruation and lasts between 6 to 13 days in a standard 28-day cycle. This phase involves the reconstruction of the endometrium, guided by estrogen produced by the developing ovarian follicle.
Notably, the stratum basale, the basal layer of the endometrium, including the basal parts of the uterine glands, remains unaffected by menstruation. Stem cells in this layer undergo mitosis, regenerating the stratum functionalis and thickening the...
Notably, the stratum basale, the basal layer of the endometrium, including the basal parts of the uterine glands, remains unaffected by menstruation. Stem cells in this layer undergo mitosis, regenerating the stratum functionalis and thickening the...
1.8K


