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Procalcitonin (PCT) is a peptide precursor of the hormone calcitonin, the latter being involved with calcium homeostasis. It arises once preprocalcitonin is cleaved by endopeptidase . [ 1 ] It was first identified by Leonard J. Deftos and Bernard A. Roos in the 1970s. [ 2 ]
Calcitonin is a 32 amino acid peptide hormone secreted by parafollicular cells (also known as C cells) of the thyroid (or endostyle) in humans and other chordates [5] in the ultimopharyngeal body. [6] It acts to reduce blood calcium (Ca 2+), opposing the effects of parathyroid hormone (PTH). [7]
The phytocannabinoids delta-9 tetrahydrocannabinol (Δ9-THC) and its oxidative byproduct cannabinol (CBN) are found to induce a CB1 and CB2 cannabinoid receptor-independent release of calcitonin gene-related peptide from capsaicin-sensitive perivascular sensory nerves, an action other psychotropic cannabinoids cannot do. [44] [45]
Starvation response in animals (including humans) is a set of adaptive biochemical and physiological changes, triggered by lack of food or extreme weight loss, in which the body seeks to conserve energy by reducing metabolic rate and/or non-resting energy expenditure to prolong survival and preserve body fat and lean mass.
Under the influence of the earth's gravity, when a person is standing, blood and other body fluids are pulled towards the lower body, increasing pressure at the feet. When gravity is removed, hydrostatic pressures throughout the body are removed and the resulting change in blood distribution is analogous to an individual changing from standing ...
Altered Traits: Science Reveals How Meditation Changes Your Mind, Brain, and Body, published in Great Britain as 'The Science of Meditation: How to Change Your Brain, Mind and Body', [1] is a 2017 book by science journalist Daniel Goleman and neuroscientist Richard Davidson. The book discusses research on meditation. For the book, the authors ...
Decompression sickness can occur after an exposure to increased pressure while breathing a gas with a metabolically inert component, then decompressing too fast for it to be harmlessly eliminated through respiration, or by decompression by an upward excursion from a condition of saturation by the inert breathing gas components, or by a ...
Coagulation, also known as clotting, is the process by which blood changes from a liquid to a gel, forming a blood clot.It results in hemostasis, the cessation of blood loss from a damaged vessel, followed by repair.