Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Birth Control Methods

Birth Control Methods

Vasectomy is a surgical form of male sterilization that involves severing and sealing the vasa deferentia, preventing sperm from mixing with semen during ejaculation. Because a vasectomy does not impact the testes' ability to produce testosterone, hormone levels, libido, and sexual function generally remain unchanged. While vasectomy is highly effective in preventing pregnancy, with a success rate near 99.85%, rare cases of recanalization (spontaneous reconnection) can occur. Although vasectomy...

Intrauterine Drug Delivery Systems

Intrauterine Drug Delivery Systems

Controlled-release systems for intravaginal and intrauterine drug delivery have been developed primarily for the administration of contraceptive steroid hormones. These delivery routes circumvent first-pass hepatic metabolism, thereby enhancing bioavailability and allowing for reduced systemic dosages compared to oral administration. Such approaches contribute to improved therapeutic efficacy and patient compliance, particularly in long-term contraceptive regimens.Intravaginal Drug Delivery...

Hormonal Control of the Ovarian Cycle

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...

Hormonal Regulation of the Menstrual Cycle

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.

Target Cell Response to Hormones

Target Cell Response to Hormones

Hormones intricately bind to receptors on the surface or within target cells, initiating a cascade of cellular responses.
Notably, the cellular response can be regulated by altering the number of receptors expressed in the cell. For example, prolonged exposure to elevated hormone levels results in a gradual decline or down-regulation in the number of receptors for that specific hormone on the cell surface. Conversely, in response to low hormone levels, cells may use up-regulation, producing an...

Hormonal Regulation

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.

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

The Prevention Gap: Cervical Cancer in Older Women.

Women's health issues : official publication of the Jacobs Institute of Women's Health·2026

Same author

Parents' Preferred Age (9-12) for HPV Vaccination: Decision-Making and Rationale.

Vaccines·2026

Same author

Factors associated with intention to obtain HPV vaccination at ages 9-10 among parents with varied prior vaccine decision making experiences and choices.

Vaccine·2026

Same author

Advancing Health Equity: Reducing Maternal-Fetal Mortality in Hawai'i through Community-Academic Partnership.

Hawai'i journal of health & social welfare·2026

Same author

Factors Associated With Workplace Violence Among Hospital-Based Nurses.

Nursing research·2026

Same author

Parental Attitudes and Decision Making Toward Routinely Recommended Adolescent Vaccinations: A Qualitative Study Conducted After COVID-19 Vaccine Availability.

Journal of pediatric health care : official publication of National Association of Pediatric Nurse Associates & Practitioners·2025

Search research articles

Related Experiment Video

Updated: Jul 4, 2026

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives

Published on: September 16, 2021

The latest advances in hormonal contraception.

Holly B Fontenot¹, Allyssa L Harris

¹Maternal Child Health Department, Boston College, William F. Connell School of Nursing, Chestnut Hill, MA 02467, USA. holly.fontenot@bc.edu

Journal of Obstetric, Gynecologic, and Neonatal Nursing : JOGNN

|May 30, 2008

Summary

Millions of women use hormonal contraception. This review covers new options like extended-dose pills, vaginal rings, injections, and emergency contraception to aid informed choices.

More Related Videos

Methods for Studying Uterine Contributions to Pregnancy Establishment in an Ovariectomized Mouse Model

Methods for Studying Uterine Contributions to Pregnancy Establishment in an Ovariectomized Mouse Model

Published on: April 7, 2023

Related Experiment Videos

Last Updated: Jul 4, 2026

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives

Published on: September 16, 2021

Methods for Studying Uterine Contributions to Pregnancy Establishment in an Ovariectomized Mouse Model

Methods for Studying Uterine Contributions to Pregnancy Establishment in an Ovariectomized Mouse Model

Published on: April 7, 2023

Area of Science:

Reproductive Health
Contraception Science

Background:

Hormonal contraceptives are widely used by millions of women annually.
The selection process for a contraceptive method can cause anxiety for patients.

Purpose of the Study:

To review recent advancements and available options in hormonal contraception.
To provide healthcare professionals, particularly nurses, with information to support women's contraceptive decision-making.

Main Methods:

Literature review of current hormonal contraceptive methods.
Focus on extended-dose oral contraceptives, vaginal rings, injectable contraceptives, and emergency contraception.

Main Results:

New formulations and delivery systems for hormonal contraceptives are available.
Extended-dose oral contraceptives offer longer cycles.
Vaginal rings provide continuous hormonal release.
Injectable methods offer long-acting contraception.
Emergency contraception provides a crucial option for preventing unintended pregnancy.

Conclusions:

Healthcare providers play a vital role in educating patients about contraceptive options.
Informed decision-making empowers women to choose suitable and effective reproductive health strategies.
Staying updated on contraceptive innovations is essential for patient counseling.