PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

A third of trans masculine individuals on testosterone ovulate

Study from Amsterdam UMC's Center of Expertise on Gender Dysphoria shows that one-third of trans masculine individuals taking testosterone ovulate

2024-02-22
(Press-News.org) "Trans masculine people are people born female but do not identify as such, for example they feel male, gender fluid or non-binary. Our examination of their ovarian tissue shows that 33% of them show signs of recent ovulation, despite being on testosterone and no longer menstruating," says Joyce Asseler, PhD candidate at Amsterdam UMC.  

Trans masculine people often use hormone treatment with testosterone to masculinize physically. This hormone usually stops them from menstruating. In that case, it is often assumed that ovulation does not take place. 

Physician-researcher Joyce Asseler and gynecologist Norah van Mello examined the ovarian tissue of transgender people who had their ovaries removed as part of their gender-affirming treatment. They had all used testosterone for at least 1 year prior to and at the time of the procedure. Their analysis shows that 17 of the 52 study participants (33%) show signs of recent ovulation in the ovarian tissue.  

"Testosterone apparently has a heterogenous effect on ovarian tissue. We don't know why one person ovulates and another person doesn't. In any case, we cannot explain this difference by the type of testosterone, or how long someone has been taking testosterone," says Asseler.  

People who ovulate can, in theory, also get pregnant. This also applies to these trans people. For them, it is therefore necessary to use contraceptives if they are sexually active with someone who produces sperm cells. "The physical and mental consequences of an unplanned and unwanted pregnancy are enormous. It is important that trans masculine people and their healthcare providers are aware of this risk and act accordingly. Furthermore, this discovery can contribute to better care for trans masculine people who experience abdominal cramping," concludes Asseler. 

 

END


ELSE PRESS RELEASES FROM THIS DATE:

Researchers use deep brain stimulation to map therapeutic targets for four brain disorders

Researchers use deep brain stimulation to map therapeutic targets for four brain disorders
2024-02-22
A new study led by investigators from Mass General Brigham demonstrated the use of deep brain stimulation (DBS) to map a ‘human dysfunctome’ — a collection of dysfunctional brain circuits associated with different disorders. The team identified optimal networks to target in the frontal cortex that could be used for treating Parkinson’s disease, dystonia, obsessive compulsive disorder (OCD) and Tourette's syndrome. Their results are published in Nature Neuroscience. “We were able to use brain stimulation to precisely identify and target circuits for the optimal treatment of four different ...

Undiagnosed cancer cases in the US during the first 10 months of the pandemic

2024-02-22
About The Study: This study found that all-sites cancer incidence in the U.S. was significantly lower than expected in March through December 2020, with 134,395 potentially undiagnosed cancer cases. The overall and differential findings can be used to inform where the health care system should be looking to make up ground in cancer screening and detection.  Authors: Krystle A. Lang Kuhs, Ph.D., M.P.H., of the University of Kentucky in Lexington, is the corresponding author.  To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/  (doi:10.1001/jamaoncol.2023.6969) Editor’s ...

Uncorrected refractive error in the African American eye disease study

2024-02-22
About The Study: The results of this study suggest a high burden of refractive error–associated correctable refractive error in African American adults, making it the leading cause of visual impairment in this population. Providing universal coverage for vision care and prescription glasses is an affordable and achievable health care intervention that could reduce the burden of visual impairment in African American adults by over two-thirds and likely raise the quality of life and work productivity, ...

Vision impairment and psychosocial function in older adults

2024-02-22
About The Study: Vision impairment was associated with several psychosocial outcomes, including symptoms of depression and anxiety and social isolation in this study including 2,822 U.S. adults age 65 and older. These findings provide evidence to support prioritizing research aimed at enhancing the health and inclusion of people with vision impairment. Authors: Pradeep Y. Ramulu, M.D., M.H.S., Ph.D., of the Johns Hopkins University School of Medicine in Baltimore, is the corresponding author. To access the embargoed ...

Chronic stress spreads cancer … here’s how

Chronic stress spreads cancer … here’s how
2024-02-22
Stress is inevitable. But too much of it can be terrible for our health. Chronic stress can increase our risk for heart disease and strokes. It may also help cancer spread. How this works has remained a mystery—a challenge for cancer care. Xue-Yan He, a former postdoc in Cold Spring Harbor Laboratory (CSHL) Adjunct Professor Mikala Egeblad’s lab, says, “Stress is something we cannot really avoid in cancer patients. You can imagine if you are diagnosed, you cannot stop thinking about the disease or insurance ...

Markey study reveals extent of undiagnosed cancer cases due to COVID-19 pandemic

2024-02-22
Over 134,000 cancer cases went undiagnosed in the U.S. during the first 10 months of the COVID-19 pandemic, according to a new University of Kentucky Markey Cancer Center study.  The report published in JAMA Oncology Feb. 22 provides the first estimates of missed cancer diagnoses in 2020 using nationwide surveillance data. Researchers have expected impacts to cancer detection as a result of delayed screenings and missed health care appointments due to the COVID-19 pandemic, but the extent of this impact had not been quantified until ...

NextGen Precision Health researchers uncover potential treatment for cardiovascular complications from type 2 diabetes

2024-02-22
New research at the Roy Blunt NextGen Precision Health building has discovered a potential treatment for an underlying cause of cardiovascular disease in people with Type 2 diabetes. More than 30 million Americans live with Type 2 diabetes. One common feature of diabetes is the hardening and inflexibility of blood vessels caused by damage to the endothelial cells in the vascular system. Over time, this can lead to the development and progression of cardiovascular disease, which is the number one cause of death in diabetics. Because endothelial dysfunction is causally linked to cardiovascular disease, there is a considerable ...

Immune cell receptor provides promising immunotherapy target

2024-02-22
FOR IMMEDIATE RELEASE Drugs that target a receptor on immune cells called activin receptor 1C may combat tumor-induced immune suppression and help patients’ immune systems fight back against cancer, according to a study by investigators at the Johns Hopkins Kimmel Cancer Center and its Bloomberg~Kimmel Institute for Cancer Immunotherapy. The study, published online Jan. 8 in Oncoimmunology, identifies a new strategy cancer cells use to protect themselves from immune system attack, and suggests treatments that could counteract it. It shows that tumor cells and some immune cells produce proteins called activins that ...

Silicon microresonators for artificial neural networks

2024-02-22
Researchers have made significant progress in the development of artificial neural networks using tiny silicon devices called microresonators, paving the way for faster and more energy-efficient artificial intelligence systems. These networks mimic the computing capabilities of the human brain, breaking away from traditional digital computer architectures and leveraging the speed, low power dissipation and multi-wavelength capabilities of photonics. A review article describing the implementations of neural networks using silicon microresonators was published Jan. 16 in Intelligent Computing, a Science Partner Journal. Silicon microresonators ...

Scientists develop a simple blood test to quickly diagnose sarcoidosis

2024-02-22
  Scientists develop a simple blood test to quickly diagnose sarcoidosis NIH-funded tool can accurately identify the potentially life-threatening inflammatory disease   A research project supported by the National Institutes of Health has developed a tool to rapidly and inexpensively diagnose sarcoidosis, a chronic inflammatory disease marked by the growth of tiny lumps called granulomas in the lungs and other organs in the body. The tool, which uses a simple blood test, could allow for selective use of more invasive diagnostic tests often used to identify the ...

LAST 30 PRESS RELEASES:

Community partners key to success of vaccine clinic focused on neurodevelopmental conditions

Low-carbon collaborative dual-layer optimization for energy station considering joint electricity and heat demand response

McMaster University researchers uncover potential treatment for rare genetic disorders

The return of protectionism: The impact of the Sino-US trade war

UTokyo and NARO develop new vertical seed distribution trait for soybean breeding

Research into UK’s use of plastic packaging finds households ‘wishcycle’ rather than recycle – risking vast contamination

Vaccine shows promise against aggressive breast cancer

Adverse events affect over 1 in 3 surgery patients, US study finds

Outsourcing adult social care has contributed to England’s care crisis, argue experts

The Lancet: Over 800 million adults living with diabetes, more than half not receiving treatment, global study suggests

New therapeutic approach for severe COVID-19: faster recovery and reduction in mortality

Plugged wells and reduced injection lower induced earthquake rates in Oklahoma

Yin selected as a 2024 American Society of Agronomy Fellow

Long Covid could cost the economy billions every year

Bluetooth technology unlocks urban animal secrets

This nifty AI tool helps neurosurgeons find sneaky cancer cells

Treatment advances, predictive biomarkers stand to improve bladder cancer care

NYC's ride-hailing fee failed to ease Manhattan traffic, new NYU Tandon study reveals

Meteorite contains evidence of liquid water on Mars 742 million years ago

Self-reported screening helped reduce distressing symptoms for pediatric patients with cancer

Which risk factors are linked to having a severe stroke?

Opening borders for workers: Abe’s profound influence on Japan’s immigration regime

How skills from hospitality and tourism can propel careers beyond the industry

Research shows managers of firms handling recalls should review media scrutiny before deciding whether to lobby

New model system for the development of potential active substances used in condensate modifying drugs

How to reduce social media stress by leaning in instead of logging off

Pioneering research shows sea life will struggle to survive future global warming

In 10 seconds, an AI model detects cancerous brain tumor often missed during surgery 

Burden of RSV–associated hospitalizations in US adults, October 2016 to September 2023

Repurposing semaglutide and liraglutide for alcohol use disorder

[Press-News.org] A third of trans masculine individuals on testosterone ovulate
Study from Amsterdam UMC's Center of Expertise on Gender Dysphoria shows that one-third of trans masculine individuals taking testosterone ovulate