https://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Blocking reproduction increases lifespan in both males and females of many different species, a new international University of Otago—Ōtākou Whakaihu Waka-led study has found. https://medicalxpress.com/news/2025-12-contraception-castration-linked-longer-lifespan.html Wed, 10 Dec 2025 11:00:23 EST news684491941 The opioid epidemic has claimed more than half a million lives in the U.S. since 1999, about three-quarters of them men, according to the National Institutes of Health. Although men's disproportionate rates of opioid abuse and overdose deaths are well-documented, the reasons for this gender disparity are not well understood. https://medicalxpress.com/news/2025-03-female-sex-hormone-opioid-misuse.html Mon, 10 Mar 2025 11:00:01 EDT news660813961 A group of researchers at the University of Kentucky have found a mechanism that would explain why men develop more aortic aneurysms than women. https://medicalxpress.com/news/2024-09-sex-specific-differences-aortic-aneurysms.html Mon, 23 Sep 2024 12:08:11 EDT news646312086 A fungal toxin that hinders animal fertility and fetal development may also disrupt human sex hormones in pregnancy, according to a Rutgers Health study. https://medicalxpress.com/news/2024-07-fungal-toxins-impact-hormones-pregnancy.html Mon, 01 Jul 2024 12:21:38 EDT news639055292 Males born to obese women are more likely to be overweight at birth and develop metabolic complications in later life, including liver disease and diabetes. The way that male sex hormones activate pathways in the developing liver is partly to blame. https://medicalxpress.com/news/2024-02-males-born-obese-mothers-health.html Tue, 06 Feb 2024 11:10:23 EST news626440221 Northwestern Medicine investigators have discovered novel sex-specific mechanisms that control how stress hormones impact dopamine transmission and motivation, findings that can inform new therapeutic strategies for treating major depressive disorder, according to a study published in the journal Neuropsychopharmacology. https://medicalxpress.com/news/2023-03-sex-specific-mechanisms-major-depressive-disorder.html Fri, 24 Mar 2023 11:32:04 EDT news598876322 For the first time, researchers have discovered that prostate cancer can be killed by targeting a single enzyme, called PI5P4Kα. The findings, published recently in Science Advances, could help address the growing threat of treatment resistance in prostate cancer and could also lead to improved treatments for other cancers, such as those affecting the breast, skin, and pancreas. https://medicalxpress.com/news/2023-02-treatment-approach-prostate-cancer-resistance.html Fri, 03 Feb 2023 17:34:47 EST news594668081 Male sex hormones interfere with the body's ability to fight bladder cancer, likely explaining why males experience higher cancer rates and more deadly disease, according to a new study co-led by a Cedars-Sinai Cancer investigator. https://medicalxpress.com/news/2022-06-hormones-contribute-sex-disparities-bladder.html Fri, 10 Jun 2022 03:52:46 EDT news574051955 Sex hormones play an important role in shaping an animal's behavior, and their influence starts early. Early-life hormonal surges help shape the developing brain, establishing circuitry that will influence behavior for a lifetime. https://medicalxpress.com/news/2022-05-hormones-brain-sex-differences.html Wed, 04 May 2022 11:00:03 EDT news570869966 Patients with cancers stemming from non-reproductive organs, such as bladder and liver cancer, have striking discrepancies in incidence, progression, response to treatment and survival outcomes depending on their sex. In almost all cases, male patients have worse prognoses and outcomes. This phenomenon has puzzled the scientific community for decades. https://medicalxpress.com/news/2022-04-reveals-male-sex-hormones-cancer.html Fri, 15 Apr 2022 11:12:12 EDT news569239928 Researchers at Johns Hopkins Medicine have found that a drug first developed to treat Alzheimer's disease, schizophrenia and sickle cell disease reduces obesity and fatty liver in mice and improves their heart function—without changes in food intake or daily activity. https://medicalxpress.com/news/2021-10-cousin-viagra-obesity-cells-fat.html Thu, 07 Oct 2021 12:38:44 EDT news552829116 Research led by the Centenary Institute has found that a compound extracted from a commonly cultivated orchid could be a potential new treatment option for prostate cancer. https://medicalxpress.com/news/2021-09-orchid-prostate-cancer-treatment.html Mon, 20 Sep 2021 08:10:38 EDT news551344235 Drugs typically used to treat prostate cancer could be explored for treating patients with COVID-19, following encouraging new findings. https://medicalxpress.com/news/2021-07-prostate-cancer-drugs-potential-covid-.html Thu, 01 Jul 2021 10:52:49 EDT news544355565 Autoimmune diseases have something in common with horses, bachelor's degrees and daily flossing habits: women are more likely to have them. https://medicalxpress.com/news/2021-05-gas-testosterone-immune-response.html Wed, 12 May 2021 16:12:25 EDT news540054742 Scientists at the University of Virginia and elsewhere have mapped out how the body transports testosterone, and their surprising findings may explain low testosterone levels seen in men with diabetes or patients on certain medications. https://medicalxpress.com/news/2019-03-testosterone-discovery-men-diabetes.html Thu, 28 Mar 2019 10:40:02 EDT news472987690 Men who have undergone bariatric surgery as a long-term way of losing weight might also benefit from increased testosterone levels post-surgery. However, there is no evidence that the sperm quality of a patient improves. These are the findings of a comprehensive review in the Springer journal Obesity Surgery, which is the official publication of the International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO). The research was led by Shahzeer Karmali and was a collaborative effort between Yung Lee of McMaster University and Jerry Dang of the University of Alberta in Canada. https://medicalxpress.com/news/2018-10-bariatric-surgery-men-virile.html Wed, 31 Oct 2018 12:59:53 EDT news460209586 Men who suffer from urological problems such as erectile dysfunction, urinary tract and bladder problems or infertility issues often also suffer from depression and sleep disorders. Physicians should therefore be aware of these risks so that they can refer their patients to relevant specialists and provide comprehensive and timely care of male patients. This is according to Arman Walia of the University of California Irvine in the US, in a study in the Springer Nature-branded IJIR: Your Sexual Medicine Journal. https://medicalxpress.com/news/2018-08-prostate-problems-disorders-depression.html Fri, 31 Aug 2018 09:53:14 EDT news454927986 (HealthDay)—Women with dark, coarse hair growth on the face, chest or back should be tested for polycystic ovary syndrome and other underlying health problems, a new Endocrine Society guideline says. https://medicalxpress.com/news/2018-03-guideline-urges-hormone-women-unwanted.html Fri, 30 Mar 2018 14:50:01 EDT news441637606 Researchers have identified a new regulator of vitamin D metabolism that could be targeted to reduce the risk of osteoporosis in men undergoing prostate cancer therapy, according to a study published in the Journal of Molecular Endocrinology. Reduced levels of sex hormones in men, caused by prostate cancer therapy can lead to lower vitamin D levels, which in turn increases the risk of bone fractures. This study has identified a previously unknown link between male sex hormone levels and vitamin D that may have future therapeutic value for treating related deficiencies of the vitamin. https://medicalxpress.com/news/2018-01-potential-osteoporosis-men.html Wed, 31 Jan 2018 02:29:54 EST news436588181 Obesity and reduced insulin sensitivity are common in polycystic ovary syndrome, PCOS. New research based on animal studies, and to be published in the journal PNAS, reveals that the hormone adiponectin can protect against these changes. https://medicalxpress.com/news/2017-08-hormone-fat-tissue-polycystic-ovary.html Thu, 10 Aug 2017 08:40:44 EDT news421573234 Paracetamol is popular for relieving pain. But if you are pregnant, you should think twice before popping these pills according to the researchers in a new study. In an animal model, Paracetamol, which is the pain-relieving substance found in the pills, actually damages the development of male behaviours. https://medicalxpress.com/news/2017-06-paracetamol-pregnancy-inhibit-masculinity.html Thu, 22 Jun 2017 05:55:47 EDT news417329740 The success of kidney transplant is dependent on the age and sex of both the donor and the recipient, according to research published today in the Journal of the American Society of Nephrology. The study, which was a collaboration between a team from the Research Institute of the McGill University Health Centre (RI-MUHC) and the University of Montreal Hospital Research Center (CRCHUM), revealed that young women had poorer transplant outcomes compared to young men, whereas women of post-menopausal age had similar or slightly better outcomes than men of the same age. This finding opens the door to a new approach for organ transplantation, and could lead to personalized immunosuppression strategies based on age and sex. https://medicalxpress.com/news/2017-06-kidney-graft-successdoes-age-sex.html Thu, 08 Jun 2017 09:31:24 EDT news416133073 Scientists led by the University of Birmingham have discovered that a new class of male sex hormones known as androgens plays a key role in the development of polycystic ovary syndrome (PCOS). https://medicalxpress.com/news/2017-03-class-androgens-key-role-polycystic.html Tue, 14 Mar 2017 09:18:56 EDT news408701928 Men who used testosterone replacement therapy to treat symptoms of androgen deficiency had a 33 percent lower risk of cardiovascular events such as heart attacks and stroke compared to those who did not receive any hormone therapy. The findings from the Kaiser Permanente study were published in JAMA Internal Medicine today. https://medicalxpress.com/news/2017-02-testosterone-therapy-cardiovascular.html Tue, 21 Feb 2017 11:00:03 EST news406893129 Twelve weeks of aerobic exercise significantly boosted testosterone levels in overweight and obese men, with the greatest increases seen among vigorous exercisers, according to research presented today at the Integrative Biology of Exercise 7 meeting in Phoenix. https://medicalxpress.com/news/2016-11-testosterone-overweight-obese-men-week.html Mon, 07 Nov 2016 07:54:49 EST news397727682 In a recent study, a Yale Cancer Center team determined that men who received hormonal therapy for prostate cancer had a net harm if they had a prior history of a heart attack. The findings were presented September 28 at the American Society for Therapeutic Radiology and Oncology (ASTRO) meeting in Boston. https://medicalxpress.com/news/2016-09-cardiac-factor-hormonal-therapy-prostate.html Wed, 28 Sep 2016 18:31:52 EDT news394306306 Factors that influence when boys go through puberty could affect a man's future risk of developing prostate cancer, a large study funded by World Cancer Research Fund has found. https://medicalxpress.com/news/2016-04-early-life-factors-prostate-cancer.html Thu, 07 Apr 2016 06:31:26 EDT news379229477 Prenatal exposure to a mixture of chemicals used in the oil and natural gas drilling technique known as hydraulic fracturing, or fracking, at levels found in the environment lowered sperm counts in male mice when they reached adulthood, according to a new study published in the Endocrine Society's journal Endocrinology. https://medicalxpress.com/news/2015-10-fracking-chemicals-tied-sperm-mice.html Wed, 14 Oct 2015 13:22:04 EDT news364047713 Researchers at the University of St Andrews have found that men are perceived as more masculine if they appear taller and heavier, regardless of how much their face shape differs from women's, in a new study published this week. https://medicalxpress.com/news/2014-11-size-men-masculine-taller-heavier.html Thu, 27 Nov 2014 17:58:04 EST news336333477 Researchers at the University of Cincinnati (UC) have found that a gene abundant in the kidneys may actually play a role in the regulation of blood pressure and hypertension in experimental mouse models. https://medicalxpress.com/news/2014-11-kidney-gene-role-blood-pressure.html Mon, 17 Nov 2014 09:30:02 EST news335436932