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Related Concept Videos

Menopause01:28

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...
Hormonal Regulation of the Menstrual Cycle01:22

Hormonal Regulation of the Menstrual Cycle

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 release.
Retrovirus Life Cycles01:10

Retrovirus Life Cycles

Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the retrovirus to...
Hormonal Control of the Ovarian Cycle01:30

Hormonal Control of the Ovarian Cycle

The ovarian cycle is meticulously regulated by the hypothalamic-pituitary-gonadal axis. This cycle orchestrates the release of a mature oocyte, essential for reproduction.
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle.  At puberty, GnRH secretion increases in both frequency and...
The Menstrual Cycle01:19

The Menstrual Cycle

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 uterine...
Hormonal Regulation01:33

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.

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Related Experiment Video

Updated: Jul 9, 2026

Collection, Isolation, and Flow Cytometric Analysis of Human Endocervical Samples
12:34

Collection, Isolation, and Flow Cytometric Analysis of Human Endocervical Samples

Published on: July 6, 2014

HIV and menopause: a review.

Erna Milunka Kojic1, Chia-Ching Wang, Susan Cu-Uvin

  • 1Department of Medicine, Division of Infectious Diseases, The Miriam Hospital, Brown University, Providence, Rhode Island 02906, USA. ekojic@Lifespan.org

Journal of Women'S Health (2002)
|December 8, 2007
PubMed
Summary

HIV-infected women experience menopause earlier, potentially due to lifestyle factors. Further research is needed on menopause, HIV, and HAART

Area of Science:

  • Reproductive Health
  • Infectious Diseases
  • Gerontology

Background:

  • Highly Active Antiretroviral Therapy (HAART) has improved HIV survival rates, leading to an aging HIV population.
  • Menopausal transitions in HIV-infected women may differ from uninfected women and impact disease progression.
  • Early menopause is observed in HIV-infected women, possibly linked to factors like substance use and socioeconomic status.

Purpose of the Study:

  • To investigate the unique aspects of menopause in women living with HIV.
  • To explore potential differences in menopausal experiences and age of onset compared to the general population.
  • To highlight the need for research into the combined effects of menopause, HIV, and HAART on metabolism and mental health.

Main Methods:

  • Review of existing studies on menopause and HIV.

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  • Comparison of age at menopause between HIV-infected and uninfected women.
  • Identification of factors associated with early menopause in HIV-infected populations.

    • Main Results:

    • HIV-infected women experience menopause at an average age of 47-48 years, earlier than the general population (49-51 years).
    • Factors such as drug use, smoking, and low socioeconomic status are associated with earlier menopause.
    • Distinguishing between HIV and menopausal symptoms can be challenging.

    Conclusions:

    • HIV-infected women face unique challenges during menopausal transition.
    • The interplay of menopause, HIV infection, and HAART requires further investigation regarding metabolic changes (bone, lipid, glucose).
    • There is a critical need to understand depression prevalence and symptoms in this population.