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.

Female-to-male transsexuals have higher androgen levels, not polycystic ovary syndrome

Contrary to previous studies, female-to-male transsexuals do not have a higher prevalence of polycystic ovary syndrome (PCOS), though they do have significantly higher androgen levels, according to a new study accepted for publication in the Journal of Clinical Endocrinology & Metabolism (JCEM).

21 Feb 2008

Lead exposure may lead to adult-onset obesity in men

Scientists know exposure to low levels of lead can result in learning disabilities, hearing loss, language impairments and vision loss, but a newly discovered side effect may be adult-onset obesity in men, according to a University of Houston professor.

21 Feb 2008

Brain's serotonin system differs between men and women

A new thesis from the Swedish medical university Karolinska Institutet shows that the brain's serotonin system differs between men and women.

21 Feb 2008

Annual cancer statistics show substantial declines in mortality rates

The American Cancer Society's annual cancer statistics report finds that death rates from cancer in the United States have decreased by 18.4 percent among men and by 10.5 percent among women since mortality rates began to decline in the early 1990s, which translates to the avoidance of more than half a million cancer deaths (534,500) in the United States.

21 Feb 2008

Newly discovered role of thyroid hormone during pregnancy

Thyroid hormone deficiencies in early pregnancy can cause locomotor underdevelopment in the child, according to research from the Swedish medical university Karolinska Institutet.

21 Feb 2008

$Hormone refractory prostate cancers more likely to spread to other organs$

Hormone refractory prostate cancers more likely to spread to other organs

Prostate cancers that are resistant to androgen deprivation therapy are more invasive and more likely to spread to other organs than androgen dependent prostate cancers, UCLA cancer researchers have found.

21 Feb 2008

Genetic and environmental hormonal response to stress in children depends on family context

A study conducted on 346 19-month-old twins by an international team led by Universite Laval professor of psychology Michel Boivin reveals that the genetic and environmental bases of hormonal response to stress depend on the context in which a child grows up.

21 Feb 2008