Almost 1.2 million violent crimes - homicide, sexual assault, assault, and robbery—were committed in the United States in 2015, according to the U.S. Department of Justice. A new study has found that violent crime changes ...
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A new narrative review authored by Carl Streed Jr., MD, at Brigham and Women's Hospital, published in the Annals of Internal Medicine, discusses how more research is needed to better understand cardiovascular disease (CVD) ...
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Individual differences in the pattern of release of the hormone cortisol in response to a stressful experience reveal how stressed a person actually feels, suggests a study of healthy women published in The Journal of Neuroscience. ...
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Transgender women—people whose birth certificates indicate or once indicated male sex but who identify as women—are at high risk of HIV acquisition, and thus are a key population for HIV prevention and treatment efforts. ...
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A study by scientists at the Children's Medical Center Research Institute at UT Southwestern (CRI) is providing insight into the genetic basis of neuropsychiatric disorders. In this research, the first mouse model of a mutation ...
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(HealthDay)—Health initiatives typically center on diet and fitness. But the American Academy of Sleep Medicine and the Sleep Research Society state that getting enough sleep is just as important as eating right and exercising.
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As student athletes hit training fields this summer to gain the competitive edge, a new study shows how the experiences of a tiny mouse can put them on the path to winning.
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Researchers at Cold Spring Harbor Laboratory (CSHL) have opened a black box in the brain whose contents explain one of the remarkable yet mysterious facts of life.
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As women, we know that hormones can wreak havoc on our moods and appetites, but did you know that they can also play a huge role in how many zzz's we catch each night? "Insomnia is much more common in women than men," says ...
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New research published today, conducted by a research team from the University of Liverpool and Alder Hey Children's Hospital, aims to help solve the problem of dose optimisation of children's medicines.
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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.
This text uses material from Wikipedia, licensed under CC BY-SA
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