Hormone News and Research

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A hormone is a chemical released by one or more cells that affects cells in other parts of the organism. Only a small amount of hormone is required to alter cell metabolism. It is essentially a chemical messenger that transports a signal from one cell to another.

Allergic conditions linked to higher risk of complications after surgery

Two new studies being presented at the 2025 Annual Scientific Meeting of the American College of Allergy, Asthma and Immunology (ACAAI) show that people with allergic conditions - including eczema, asthma, and hay fever - may face more problems after certain types of surgery.

6 Nov 2025

New combination treatment overcomes resistance in ER positive breast cancer

In preclinical studies, researchers at Sylvester Comprehensive Cancer Center, part of the University of Miami Miller School of Medicine, have tested a new combination therapy for hormone-resistant, estrogen receptor-positive (ER+) breast cancer and were able to shrink tumors, reduce the number of cancer stem cells and reprogram the immune environment to be less supportive of cancer growth.

6 Nov 2025

Survival times continue to rise for people with advanced breast cancer

People diagnosed with advanced breast cancer in 2025 can expect to live for an extra six or seven months, compared to the average survival time for patients diagnosed in 2011, according to a major study of patient data in the US presented at the Advanced Breast Cancer Eighth International Consensus Conference (ABC8).

5 Nov 2025

PTGES3 emerges as key regulator of androgen receptor in prostate cancer

A poorly characterized protein, historically thought to be a chaperone or enzyme, may actually be a key player in prostate cancer.

5 Nov 2025

Do GLP-1 drugs cause cancer? New review says no, may even protect

A comprehensive review in The Journal of Clinical Investigation finds no overall link between GLP-1 receptor agonists and increased cancer risk, countering early safety concerns. Instead, evidence suggests possible protective effects for certain cancers, supported by metabolic and immune-modulating mechanisms.

4 Nov 2025

New review illuminates the intricate connections between gut microbiota and sleep regulation

A comprehensive review published today in Brain Medicine illuminates the intricate connections between gut microbiota and sleep regulation, establishing the microbiota-gut-brain axis as a critical pathway in understanding and potentially treating sleep disorders.

4 Nov 2025

Stress hormones may silence crucial neuronal genes through specific RNA molecules

What if the brain's response to stress could be read not in fleeting neurotransmitter bursts, but in the quieting of genes deep inside chromatin? Researchers at the University of Alabama at Birmingham have now shown that stress hormones may silence crucial neuronal genes through an unexpected class of RNA molecules that operate not by encoding proteins, but by reshaping the genome's architecture.

4 Nov 2025

New study finds no increased risk of heart and brain infarctions for transgender women

Contrary to previous research, transgender women who use the hormone oestradiol for their transition do not have an increased risk of heart attack and stroke compared to men in the general Dutch population.

4 Nov 2025

How artificial light interferes with liver health

People who work against their internal clock over a long period of time increase the risk of fatty liver. The correlations are complex, but one research team in Bochum is trying to get to the bottom of the issue.

4 Nov 2025

Long-term use of melatonin supplements linked to higher risk of heart failure and death

Long-term use of melatonin supplements, often used to promote sleep and address insomnia, was associated with a higher risk of heart failure diagnosis, heart failure hospitalization and death from any cause in chronic insomnia, according to a preliminary study to be presented at the American Heart Association's Scientific Sessions 2025.

3 Nov 2025

Even low PFAS in drinking water raise blood levels, California study shows

Researchers in Southern California found that even low levels of PFAS (“forever chemicals”) in public drinking water lead to measurable increases in blood PFAS concentrations. The study underscores the urgent need for stronger water-quality monitoring and stricter PFAS regulations across non-industrial regions.

2 Nov 2025

Sensory effects of flavanols trigger physiological responses in the brain

Astringency is a dry, puckering, rough, or sandpapery sensation in the mouth caused by plant-derived polyphenols.

31 Oct 2025

Some hormonal contraceptives linked to higher risk of breast cancer

Some common hormonal contraceptives are linked to a slightly higher risk of breast cancer than others.

30 Oct 2025

Sharing happy moments with a partner may be good for older people's health

Sharing happy moments with a partner may be good for older people's health, lowering the level of the stress hormone cortisol in their bodies, according to research published by the American Psychological Association.

30 Oct 2025

Research identifies biomarkers in blood to fine-tune breast cancer interventions

Doctors may be able to spare patients unnecessarily aggressive breast cancer treatments by collecting and testing cancer cells in patients' blood, research from the University of Michigan and the University of Kansas suggests.

30 Oct 2025

WHO reviews highlight limited long-term data on GLP-1 drug safety

Three new Cochrane reviews find evidence that GLP-1 drugs result in clinically meaningful weight loss, but industry-funded studies raise questions. The reviews were commissioned by the World Health Organization (WHO) to inform upcoming guidelines on the use of these drugs to treat obesity.

30 Oct 2025

Aligning your body clock may protect your heart and metabolism, says AHA

A new American Heart Association scientific statement highlights how maintaining circadian health through regular sleep, light exposure, meal timing, and exercise may reduce cardiometabolic disease risk. Disrupting these daily rhythms can impair glucose regulation, blood pressure, and cardiovascular function.

29 Oct 2025

Scripps Research professor wins $3.2 million grant to unravel the mysteries of type 1 diabetes

Luc Teyton, professor in the Department of Immunology and Microbiology at Scripps Research, has received a five-year, $3.2 million grant from the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) to help answer how type 1 diabetes manifests and develop potential therapeutics to reverse or prevent the disease.

29 Oct 2025

Retaining gonad function could be a potent strategy to fight late-life frailty

Frailty threatens older individuals because it increases their vulnerability to detrimental health outcomes, such as falling, longer hospitalization, or even shortened life expectancy.

29 Oct 2025

Four distinct subgroups of PCOS open up for more tailored treatments

Four distinct subgroups of polycystic ovary syndrome (PCOS) have been identified in an international study published in Nature Medicine by researchers from Karolinska Institutet, among others.

29 Oct 2025