Related Experiment Video
Updated: May 4, 2026

04:22
Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility
Published on: May 30, 2025
1.4K
Male contraception: another Holy Grail
Fern E Murdoch1, Erwin Goldberg2
1The Center for Reproductive Science Northwestern University, Evanston, IL 60208, United States.
Bioorganic & Medicinal Chemistry Letters
|December 26, 2013
Summary
New non-hormonal male contraceptives are being developed. Research targets sperm production, function, and transport, offering promising alternatives to hormonal methods for family planning.
Area of Science:
- Reproductive biology
- Pharmacology
- Urology
Background:
- Male contraception currently relies on condoms and vasectomy.
- Hormonal male contraceptives face challenges with side effects and testosterone replacement.
- Growing interest exists in developing non-hormonal male contraceptive methods.
Purpose of the Study:
- To review the progress and promising targets for non-hormonal male contraception.
- To highlight novel approaches beyond hormonal suppression.
Main Methods:
- Investigating disruption of spermatogenesis (germinal epithelium, meiosis).
- Targeting specific sperm proteins essential for fertilization.
- Interfering with seminal fluid components for sperm motility.
- Blocking vas deferens contractility to prevent ejaculation.
Main Results:
- Several non-hormonal targets show promise for male contraception development.
- Novel strategies address different stages of sperm development and function.
- Limited pharmaceutical industry interest contrasts with NIH support.
Conclusions:
- Non-hormonal male contraceptives offer diverse and potentially effective options.
- Targeting spermatogenesis, sperm function, or transport are key research avenues.
- Continued research and development are crucial for advancing male family planning options.
Related Concept Videos
Birth Control Methods
5.6K
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...
5.6K
Infertility in Males
665
Male infertility affects millions of couples worldwide, arising from various factors that impact different stages of the reproductive process. An endocrine imbalance resulting from conditions like hypogonadism, Klinefelter syndrome, or pituitary disorders can disrupt hormone levels and reduce sperm production. Testicular defects, such as tumors, cryptorchidism, atrophic testes, abnormal sperm morphology, and low sperm count or motility, may arise due to genetic factors, structural...
665
Intrauterine Drug Delivery Systems
168
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...
168
Infertility in Females
4.8K
Female infertility is defined as the inability to conceive after a year of regular, unprotected intercourse and affects about 10–15% of couples worldwide. The primary cause of female infertility is ovulatory disorders, which hinder the release of eggs. These disorders can be classified as hypothalamic amenorrhea, polycystic ovarian syndrome (PCOS), premature ovarian failure, and hyperprolactinemic anovulation disorders.
Endometriosis, a condition characterized by abnormal growth of...
Endometriosis, a condition characterized by abnormal growth of...
4.8K
Gonadal and Placental Hormones
3.8K
The gonads, namely the testes in males and the ovaries in females, are pivotal in producing gonadal hormones that orchestrate the intricate processes of sexual development and reproduction.
In males, testosterone is the primary gonadal androgen. It plays a central role in the maturation of male reproductive organs — the penis and testes. Additionally, testosterone is instrumental in the development of secondary sexual characteristics — a deep voice as well as facial and pubic hair...
In males, testosterone is the primary gonadal androgen. It plays a central role in the maturation of male reproductive organs — the penis and testes. Additionally, testosterone is instrumental in the development of secondary sexual characteristics — a deep voice as well as facial and pubic hair...
3.8K
Hormonal Control of the Ovarian Cycle
5.1K
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...
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...
5.1K

