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Lecture

Male hormonal contraception

In course

BIO-450: Molecular endocrinology: health and environment

We will define homeostasis, principles of hormone action and the molecular mechanisms underlying them to illustrate the complexities of physiological regulation. Human interactions with the environment, pertinent public health issues and their causes and p ...

Description

This lecture discusses the current status of male hormonal contraception, highlighting the need for more options beyond condoms and vasectomy. It explains the hormonal mechanisms involved in sperm production and the challenges of developing a reversible method that targets reproductive hormones. The lecture also addresses the potential side effects of hormonal contraception and the importance of research in reducing them.

Instructor

Cathrin Brisken

Cathrin Brisken, MD, PhD, is Associate Professor of Life Sciences at the Swiss Federal Institute of Technology Lausanne (EPFL). Dr. Brisken is internationally recognized for her work on endocrine control of mammary gland development and breast carcinogenesis. Dr. Brisken received her MD and her PhD degree in Biophysics from the Georg August University of Göttingen, Germany. She completed her postdoctoral work in cancer biology with Dr. R.A. Weinberg at the Whitehead Institute of Biomedical Research in Cambridge, MA, USA. She previously held appointments at the Cancer Center of the Massachusetts General Hospital, Harvard Medical School, Boston and the Swiss Institute for Experimental Cancer Research (ISREC). Research in Dr. Brisken’s laboratory focuses on the cellular and molecular underpinnings of estrogen and progesterone receptor signaling in the breast and the respective roles of these hormones and hormonally active compounds in carcinogenesis. The aim is to understand how recurrent exposures to endogenous and exogenous hormones contribute to breast carcinogenesis in order to better prevent and treat the disease. The laboratory has pioneered in vivo approaches to genetically dissect the role of the reproductive hormones in driving mouse mammary gland development and shown how they control intercellular communication. Dr. Brisken’s group has developed ex vivo and humanized mouse models using patient samples to study hormone action in human tissues in normal settings and during disease progression. Dr. Brisken is member of the International Breast Cancer Study Group (IBCSG) Biological Protocol Working Group. She served as Dean of EPFL Doctoral School (more than 2000 PhD students in 18 PhD programs), as member of the Hinterzartener Kreis, the oncology think-tank associated with the German Science Foundation, and numerous Swiss, European, and AACR committees. She co-founded the International Cancer Prevention Institute.

Official source

Related concepts (18)

Hormonal contraception

Hormonal contraception refers to birth control methods that act on the endocrine system. Almost all methods are composed of steroid hormones, although in India one selective estrogen receptor modulator is marketed as a contraceptive. The original hormonal method—the combined oral contraceptive pill—was first marketed as a contraceptive in 1960. In the ensuing decades many other delivery methods have been developed, although the oral and injectable methods are by far the most popular.

Male contraceptive

Male contraceptives, also known as male birth control, are methods of preventing pregnancy that solely involve the male physiology. The most common kinds of male contraception include condoms, outercourse, and vasectomy. In domestic animals, castration is commonly used for contraception. Other forms of male contraception are in various stages of research and development. These include methods like RISUG/VasalGel (which has completed a small phase II clinical trial in humans in India) and ultrasound (with results so far obtained in experimental animals).

Birth control

Birth control, also known as contraception, anticonception, and fertility control, is the use of methods or devices to prevent unintended pregnancy. Birth control has been used since ancient times, but effective and safe methods of birth control only became available in the 20th century. Planning, making available, and using human birth control is called family planning. Some cultures limit or discourage access to birth control because they consider it to be morally, religiously, or politically undesirable.

Hormone

A hormone (from the Greek participle ὁρμῶν, "setting in motion") is a class of signaling molecules in multicellular organisms that are sent to distant organs by complex biological processes to regulate physiology and behavior. Hormones are required for the correct development of animals, plants and fungi. Due to the broad definition of a hormone (as a signaling molecule that exerts its effects far from its site of production), numerous kinds of molecules can be classified as hormones.

Reproductive system

The reproductive system of an organism, also known as the genital system, is the biological system made up of all the anatomical organs involved in sexual reproduction. Many non-living substances such as fluids, hormones, and pheromones are also important accessories to the reproductive system. Unlike most organ systems, the sexes of differentiated species often have significant differences. These differences allow for a combination of genetic material between two individuals, which allows for the possibility of greater genetic fitness of the offspring.

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