Researchers in Japan have identified a receptor protein on the surface of heart cells that promotes chronic heart failure. The study, "Corticotropin releasing hormone receptor 2 exacerbates chronic cardiac dysfunction," which ...
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When a close friend shares bad news, our instinct is to help. But putting ourselves in a friend's shoes, imagining how we would feel if we were the one suffering, may have detrimental effects on our own health, according ...
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(HealthDay)—When your thyroid isn't working properly, it can cause a lot of problems. It's important to understand what your thyroid does and to be aware of signs that can signal a health issue.
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Athletes often have to compete late in the evening, when they are no longer able to perform at their best. As reported in the journal Frontiers in Physiology, however, researchers from the University of Basel have shown that ...
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A protein called ZFP568 regulates an important fetal growth hormone called insulin-like growth factor 2 (Igf2), according to a mouse study led by researchers at the National Institutes of Health. The study is one of the first ...
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Oxytocin is often called the "love hormone" or "cuddle chemical," but American and Norwegian researchers have found out that it may as well be called a "crisis hormone."
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Shortness of breath is the No.1 complaint of people suffering from heart failure. Now a University of Guelph researcher has discovered its surprising cause - and an effective treatment - in a groundbreaking new study.
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A test commonly used in breast cancer has been found to also identify which patients with aggressive prostate cancer will benefit from hormonal therapy, according to a study led by scientists at UC San Francisco and the University ...
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(HealthDay)—Using hormone therapy to prevent chronic health issues, such as heart disease and bone loss, in postmenopausal women may do more harm than good, the U.S. Preventive Services Task Force (USPSTF) says.
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The blood-brain barrier is biology's proverbial double-edged sword.
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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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