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...

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.

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...

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 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.

Hormonal Regulation

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.

You might also read

Related Articles

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

Sort by

Same journal

[St. Anthony's fire: a history of ergotism].

La Revue du praticien·2026

Same journal

[Megamyxoma of the right atrium].

La Revue du praticien·2026

Same journal

[In utero treatment of twin-to-twin transfusion syndrome].

La Revue du praticien·2026

Same journal

[In utero treatment of spina bifida].

La Revue du praticien·2026

Same journal

[Syphilis and pregnancy].

La Revue du praticien·2026

Same journal

[Kidney health: moving beyond resignation, taking action].

La Revue du praticien·2026

Search research articles

Related Experiment Video

Updated: Jul 6, 2026

Reproductive Techniques for Ovarian Monitoring and Control in Amphibians

Reproductive Techniques for Ovarian Monitoring and Control in Amphibians

Published on: May 12, 2019

[Hormonal contraceptives].

Nathalie Carlotti¹

¹natcarlotti@wanadoo.fr

La Revue Du Praticien

|March 11, 2008

Summary

Recent innovations in hormonal contraceptives aim to enhance safety and effectiveness. New formulations and administration methods improve user experience and adherence to birth control.

Area of Science:

Reproductive Endocrinology
Pharmacology
Contraception

Context:

Hormonal contraceptives have undergone significant evolution.
Innovations focus on improving the benefit/risk ratio, tolerance, and adherence.
Recent advancements include dose reduction and modified hormonal sequences.

Purpose:

To review current hormonal contraceptives available in France.
To highlight the benefits of recent innovations in contraceptive technology.
To provide an overview of advancements in birth control methods.

Summary:

Decreased steroid doses and use of less androgenic progestogens enhance contraceptive safety.
Novel administration routes like transdermal systems, vaginal rings, and subdermal implants improve user convenience by avoiding daily intake.

More Related Videos

Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies

Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies

Published on: January 10, 2025

Related Experiment Videos

Last Updated: Jul 6, 2026

Reproductive Techniques for Ovarian Monitoring and Control in Amphibians

Reproductive Techniques for Ovarian Monitoring and Control in Amphibians

Published on: May 12, 2019

Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies

Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies

Published on: January 10, 2025

These changes collectively aim to optimize hormonal contraceptive therapy.

Impact:

Improved patient outcomes through better tolerance and adherence to hormonal contraception.
Expanded contraceptive options for women in France.
Potential for wider adoption of more effective and user-friendly birth control methods.