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.

Testosterone, estrogen raise men's risk of heart disease

Why men have more heart disease than premenopausal women has been unclear, but a new study shows that the sex hormones testosterone and estrogen alter cardiovascular risk factors in a way that raises a man's risk of heart disease.

9 Mar 2015

New review finds no link between menopausal hormone therapy and mortality risk

Menopausal hormone therapy (HT) does not have a significant effect on death, according to a new review of the medical literature published over the past three decades.

9 Mar 2015

New study shows positive effects of gastric bypass surgery on obese adolescents

The skeletons of obese adolescents are usually more dense than those of normal weight teens, but after gastric bypass surgery, most return to normal density within two years, a new study finds.

9 Mar 2015

Exposure to hormone-disrupting chemicals can cause fatty liver disease, promote obesity

Exposure to low doses of hormone-disrupting chemicals early in life can alter gene expression in the liver as well as liver function, increasing the susceptibility to obesity and other metabolic diseases in adulthood, a new study finds.

9 Mar 2015

Study identifies 10 new cases of breast cancer in transgender veterans

A study of breast cancer in transgender veterans has identified ten new cases, increasing the total number of published cases in both female-to-male and male-to-female transgender persons.

9 Mar 2015

Low and high maternal thyroid hormone levels during pregnancy may affect infant's IQ

A new study finds that not only low but also high maternal thyroid hormone levels during early pregnancy may significantly lower the infant's IQ later in childhood. The study results, which will be presented Thursday at the Endocrine Society's 97th annual meeting in San Diego, suggest that the common practice of treating pregnant women who have mild thyroid hormone deficiency may pose unexpected risks to the developing baby's brain.

9 Mar 2015

Chronic heart failure patients with decreased calcitriol may benefit from aggressive supplementation

In patients with chronic heart failure, the vitamin D metabolite 1,25-dihydroxyvitamin D (1,25(OH)2D), also called calcitriol, and its ratio to parathyroid hormone (PTH 1-84) may help predict cardiovascular death; and patients with decreased calcitriol and decreased ratio of calcitriol to PTH might benefit from more aggressive supplementation, a new study finds.

9 Mar 2015

Study calls for improved accessibility to care for transgender youth with gender dysphoria

A new study has confirmed that transgender youth often have mental health problems and that their depression and anxiety improve greatly with recognition and treatment of gender dysphoria.

9 Mar 2015

Letrozole helps restore fertility in obese, infertile men

A letrozole pill once a week restored fertility in obese, infertile men and led to their partners giving birth to two full-term, healthy babies, according to a new study from Canada. The results will be presented Thursday at the Endocrine Society's 97th annual meeting in San Diego.

9 Mar 2015

GC-1 experimental drug causes loss of weight and fat in mice

An experimental drug causes loss of weight and fat in mice, a new study has found. The study results will be presented Friday at the Endocrine Society's 97th annual meeting in San Diego.

9 Mar 2015

Serum testosterone may decline due to decreased sexual activity and desire in older men

In older men, decreased sexual activity and desire, not erectile dysfunction, may cause serum testosterone to decline, a new study from Australia finds. The results will be presented Saturday March 7, at ENDO 2015, the annual meeting of the Endocrine Society, in San Diego.

9 Mar 2015

Naturally occurring melatonin may help us fall asleep

If you walk into your local drug store and ask for a supplement to help you sleep, you might be directed to a bottle labeled "melatonin." The hormone supplement's use as a sleep aid is supported by anecdotal evidence and even some reputable research studies.

9 Mar 2015

Breast cancer survivors at increased risk of developing thyroid cancer, finds new study

Breast cancer survivors are at increased risk of developing thyroid cancer, especially within five years of their breast cancer diagnosis, according to a new analysis of a large national database. The study results will be presented Thursday at the Endocrine Society's 97th annual meeting in San Diego.

9 Mar 2015

Sleep apnea prevalent in obese, pregnant Asian women with gestational diabetes

Obstructive sleep apnea (OSA) is prevalent in obese, pregnant Asian women with gestational diabetes, even when their diabetes is controlled by diet, a new study from Thailand finds.

9 Mar 2015

$Investigational drug for postmenopausal osteoporosis reduces rate of new spinal fractures$

Investigational drug for postmenopausal osteoporosis reduces rate of new spinal fractures

Abaloparatide-SC, an injectable drug being studied for the treatment of postmenopausal osteoporosis, reduces the rate of new spinal fractures by a statistically significant 86 percent and as well as statistically significant reductions in the fracture rate at other parts of the body, a phase 3 clinical trial finds. Results of the ACTIVE fracture prevention trial will be described in a late-breaking oral presentation Thursday at the Endocrine Society's 97th annual meeting in San Diego.

9 Mar 2015

Genetically modified soybean oil has fewer negative metabolic consequences than regular soybean oil

A new soybean oil genetically modified to be healthier than conventional soybean oil causes obesity, pre-diabetes and fatty liver in a nearly identical manner to that of regular soybean oil when part of a typical American high-fat diet, an animal study shows.

6 Mar 2015

Exposure to endocrine-disrupting chemicals estimated to cost EU €157 billion a year

A new economic analysis found exposure to endocrine-disrupting chemicals likely costs the European Union €157 billion ($209 billion) a year in actual health care expenses and lost earning potential, according to a new series of studies published in the Endocrine Society's Journal of Clinical Endocrinology and Metabolism.

6 Mar 2015

Oxytocin nasal spray helps healthy men reduce consumption of fatty foods

A synthetic nasal formulation of the hormone oxytocin reduced caloric intake in healthy men, particularly consumption of fatty foods, after a single treatment, a new study finds. The results, to be presented Sunday at The Endocrine Society's 97th annual meeting in San Diego, confirm those of animal studies showing oxytocin reduces food intake.

6 Mar 2015

GM soybean oil as unhealthy as regular soybean oil, but may not cause insulin resistance

Soybean oil accounts for more than 90 percent of all the seed oil production in the United States. Genetically modified (GM) soybean oil, made from seeds of GM soybean plants, was recently introduced into the food supply on the premise that it is healthier than conventional soybean oil.

6 Mar 2015

Phthalate exposure in pregnancy adversely affects masculinization of male genitals in babies

Exposure to hormone-altering chemicals called phthalates - which are found in many plastics, foods and personal care products - early in pregnancy is associated with a disruption in an essential pregnancy hormone and adversely affects the masculinization of male genitals in the baby, according to research led by the University of Pittsburgh Graduate School of Public Health.

6 Mar 2015

Hormone News and Research

Further Reading

Testosterone, estrogen raise men's risk of heart disease

New review finds no link between menopausal hormone therapy and mortality risk

New study shows positive effects of gastric bypass surgery on obese adolescents

Exposure to hormone-disrupting chemicals can cause fatty liver disease, promote obesity

Study identifies 10 new cases of breast cancer in transgender veterans

Low and high maternal thyroid hormone levels during pregnancy may affect infant's IQ

Chronic heart failure patients with decreased calcitriol may benefit from aggressive supplementation

Study calls for improved accessibility to care for transgender youth with gender dysphoria

Letrozole helps restore fertility in obese, infertile men

GC-1 experimental drug causes loss of weight and fat in mice

Serum testosterone may decline due to decreased sexual activity and desire in older men

Naturally occurring melatonin may help us fall asleep

Breast cancer survivors at increased risk of developing thyroid cancer, finds new study

Sleep apnea prevalent in obese, pregnant Asian women with gestational diabetes

Investigational drug for postmenopausal osteoporosis reduces rate of new spinal fractures

Genetically modified soybean oil has fewer negative metabolic consequences than regular soybean oil

Exposure to endocrine-disrupting chemicals estimated to cost EU €157 billion a year

Oxytocin nasal spray helps healthy men reduce consumption of fatty foods

GM soybean oil as unhealthy as regular soybean oil, but may not cause insulin resistance

Phthalate exposure in pregnancy adversely affects masculinization of male genitals in babies

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