Women's hormonal cycles may not only make them more prone to drug addiction but also more affected by triggers that lead to relapse, a new Vanderbilt University study revealed. The findings are especially significant since ...
Feb 9, 2019
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Salk scientists have uncovered an unexpected molecular target of a common treatment for alopecia, a condition in which a person's immune system attacks their own hair follicles, causing hair loss. The findings, published ...
Jun 23, 2022
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Most women want and expect to have children. But women who have a chronic health condition such as polycystic ovary syndrome (PCOS) often have concerns about childbearing, including whether they can become pregnant.
Feb 8, 2019
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A longer duration of treatment with puberty-delaying medications among transgender youth is associated with lower bone mineral density, according to a new study that will be presented Sunday at ENDO 2022, the Endocrine Society's ...
Jun 12, 2022
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Scientist have identified a link between exposure to high levels of oestrogen sex hormones in the womb and the likelihood of developing autism. The findings are published today in the journal Molecular Psychiatry.
Jul 29, 2019
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Adenomyosis is a condition of the uterus (womb), where the tissue that grows on the lining of the uterus (also known as the endometrium) is also present on the inside muscular wall of the uterus. Adenomyosis can cause symptoms ...
Nov 13, 2018
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Among individuals treated at a gender identity clinic in The Netherlands, those who used puberty suppressing treatment before the age of 18 and then started gender-affirming hormones, 98% (704 out of 720) continued use at ...
Oct 21, 2022
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Social avoidance is a common symptom of PTSD, and scientists working to better understand why have laboratory evidence that while stress hormone levels consistently increase in the immediate aftermath of a traumatic event, ...
Sep 20, 2022
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The body's ability to adapt to changing conditions and shifting physiologic demands is essential to survival. To do so, each cell must be able to dispose of damaged or unnecessary proteins—a quality-control mechanism critical ...
Feb 20, 2019
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A multicenter randomized clinical trial evaluating a new artificial pancreas system—which automatically monitors and regulates blood glucose levels—has found that the new system was more effective than existing treatments ...
Oct 16, 2019
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Hormones (from Greek ὁρμή - "impetus") are chemicals released by cells that affect cells in other parts of the body. 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. All multicellular organisms produce hormones; plant hormones are also called phytohormones. Hormones in animals are often transported in the blood. Cells respond to a hormone when they express a specific receptor for that hormone. The hormone binds to the receptor protein, resulting in the activation of a signal transduction mechanism that ultimately leads to cell type-specific responses.
Endocrine hormone molecules are secreted (released) directly into the bloodstream, while exocrine hormones (or ectohormones) are secreted directly into a duct, and from the duct they either flow into the bloodstream or they flow from cell to cell by diffusion in a process known as paracrine signalling.
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