Testosterone

Testosterone is a steroid hormone from the androgen group. In mammals, testosterone is primarily secreted in the testes of males and the ovaries of females, although small amounts are also secreted by the adrenal glands

Testosterone Physiological Effects

Testosterone is the principle male sex hormone and is responsible for reproductive growth and development in male vertebrates.

Testosterone Biochemistry

What is Testosterone?

Testosterone Mechanism

Testosterone Treatments

Testosterone Replacement Therapy for Men: Risks and Benefits

Latest Testosterone News and Research

Oxytocin induces epicardial cell proliferation, study finds

The neurohormone oxytocin is well-known for promoting social bonds and generating pleasurable feelings, for example from art, exercise, or sex. But the hormone has many other functions, such as the regulation of lactation and uterine contractions in females, and the regulation of ejaculation, sperm transport, and testosterone production in males.

30 Sep 2022

Love hormone can activate heart repair mechanisms after cardiac injury, study finds

Researchers show for the first time that the neurohormone oxytocin has a previously unsuspected function in both zebrafish and human cell cultures: it stimulates mature cells in the epicardium of the heart to become stem-like cells, which can replace heart cells lost after damage.

30 Sep 2022

Debunking ‘man flu’

Researchers debunk man flu based on a review of available evidence.

28 Sep 2022

What is the impact of SARS-CoV-2 infection on semen parameters and sex hormones?

A new study aimed to systematically review studies investigating sex hormones and semen parameters in COVID-19 patients to provide a better understanding and treatment approach.

27 Sep 2022

Systemic inflammation triggered by SARS-CoV-2 found to cause human testicular injury

In a new study, a team of researchers demonstrated that testicular injury in humans is not due to direct SARS-CoV-2 infection but more likely is an indirect effect of exposure to systemic inflammation or SARS-CoV-2 antigens.

26 Sep 2022

What are the effects of pesticides on neonates' health?

A new study explores the impact of pesticide exposure in neonates, reviewing current literature while evaluating the research methods used in this area.

20 Sep 2022

Clinical practice recommendations provide evidence-based clinical guidelines on the management of erectile dysfunction in Australia

New clinical guidelines from the USANZ and the AChSHM for the RACP could help manage erectile dysfunction better "amid saturation advertising of online men's health platforms."

20 Sep 2022

Excessive smartphone use may lead to early puberty

Exposure to blue light via regular use of tablets and smartphones may alter hormone levels and increase the risk of earlier puberty, according to data from a rat study presented today at the 60th Annual European Society for Paediatric Endocrinology Meeting.

16 Sep 2022

Medical coding creates barriers to care for transgender patients

Last year, Tim Chevalier received the first of many coverage denials from his insurance company for the hair removal procedure he needed as part of a phalloplasty, the creation of a penis.

13 Sep 2022

Testosterone supplements increase sexual impulsivity in men

A recent study provides more evidence that male sexual behavior is driven, in part, by testosterone levels.

8 Sep 2022

How does SARS-CoV-2 infection impact fertility in men?

In a recent review published in the journal Endocrines, researchers summarized existing literature findings on the impact of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections on the male reproductive system and fertility.

7 Sep 2022

Is male hypogonadism a risk factor for hospitalization for COVID-19?

Researchers found an association between male hypogonadism and hospitalization risk for COVID-19.

7 Sep 2022

Male hypogonadism associated with risk of hospitalization for COVID-19

Men with low testosterone levels are more likely to require hospitalization after COVID-19 infection than men with normal levels or those on testosterone therapy, according to Saint Louis University School of Medicine and Washington University School of Medicine in St. Louis researchers.

2 Sep 2022

Men with low testosterone may have higher risk of COVID-19 hospitalization

Men with low testosterone who develop COVID-19 are at elevated risk of becoming seriously ill and ending up in the hospital, according to a study by researchers at Washington University School of Medicine in St. Louis and Saint Louis University School of Medicine.

2 Sep 2022

Case report on the post-orgasmic illness treated with antihistamines

Scientists discuss a post-orgasmic illness syndrome patient’s experience of being treated with an antihistamine.

23 Aug 2022

What is the impact of COVID-19 on male reproductive health?

In a recent study, researchers assessed male reproductive health three months after COVID-19 infection.

12 Aug 2022

Sperm not affected nine months after COVID-19 mRNA vaccination

A recent study compared the effects of COVID-19 vaccines on male fertility at a median of nine months after receipt of two mRNA vaccine doses.

8 Aug 2022

How does COVID-19 affect sexual and bladder functions in men?

Researchers discuss the impact of COVID-19 on the urogenital health of males.

1 Aug 2022

Study investigates the combined effects of aging and HIV-1 Tat expression in mice

A new research paper was published in Aging ("Aging (Albany NY)" by Medline/PubMed, "Aging-US" by Web of Science) Volume 14, Issue 13, entitled, "Age-related neuroendocrine, cognitive, and behavioral co-morbidities are promoted by HIV-1 Tat expression in male mice."

29 Jul 2022

Individuals who detransition avoid medical help, study finds

Medical education, research and clinical guidelines are all available to support the initiation of gender-affirming care for transgender people, but a York University-led qualitative study has found these resources are sparse when patients discontinue or reverse gender-affirming medical or surgical interventions -; referred to as detransition.

26 Jul 2022