News tagged with endocrinology
Men tend to store fat in the abdominal area, but don't usually have much in the way of hips or thighs. Women, on the other hand, are more often pear-shaped—storing more fat on their hips and thighs than in the belly. Why ...
Medical research Jan 11, 2013 | 4.8 / 5 (14) | 3 |
If we are to make any progress in tackling the obesity crisis, we have to look again at what really makes us fat, claims an article published in this week's BMJ.
Overweight and Obesity Apr 16, 2013 | 4.4 / 5 (7) | 1
New research suggests that a key ingredient to keeping osteoporosis in check may be found in the traditional Mediterranean diet—olive oil. Osteoporosis is a disease where the density and quality of bone ...
Health Aug 24, 2012 | 5 / 5 (3) | 0 |
(Medical Xpress)—The first single gene cause of increased sensitivity to the hormone insulin has been discovered by a team of Oxford University researchers.
Diabetes Sep 12, 2012 | 5 / 5 (3) | 0 |
Researchers from Boston University School of Medicine (BUSM) have discovered that eating mushrooms containing Vitamin D2 can be as effective at increasing and maintaining vitamin D levels (25–hydroxyvitamin D) as taking ...
Health Apr 22, 2013 | 5 / 5 (3) | 1 |
Newer technologies designed to help people with type 1 diabetes monitor their blood sugar levels daily work better than traditional methods and require fewer painful needle sticks, new Johns Hopkins research suggests.
Medical research Jul 09, 2012 | 5 / 5 (2) | 0 |
A direct, head-to-head comparison of two of the newer treatments available for type 2 diabetes yielded mixed results.
Diabetes Nov 06, 2012 | 5 / 5 (2) | 0 |
Consumption of foods high in carbohydrates immediately after birth programs individuals for lifelong increased weight gain and obesity, a University at Buffalo animal study has found, even if caloric intake ...
Overweight and Obesity Mar 19, 2013 | 5 / 5 (2) | 0 |
Scientists know that Vitamin D deficiency is not healthy. However, new research from the University of Copenhagen now indicates that too high a level of the essential vitamin is not good either. The study is based on blood ...
Health May 29, 2012 | 4.5 / 5 (2) | 1 |
(HealthDay) -- High-fat meals might boost inflammation in people with type 2 diabetes, a new study says.
Diabetes Mar 21, 2012 | 4 / 5 (2) | 0
A new study of older Western Australian men has revealed that testosterone might not be the fountain of youth.
Medical research Oct 21, 2011 | 2.3 / 5 (3) | 0 |
People who are "apple-shaped"—with fat more concentrated around the abdomen—have long been considered more at risk for conditions such as heart disease and diabetes than those who are "pear-shaped" and ...
Health Jan 10, 2013 | 3.5 / 5 (2) | 0 |
Oregon Health & Science University researchers have uncovered a new contraceptive that is more focused, safer and, therefore, available for use among a larger population of women. The research took place at OHSU's Oregon ...
Other Sep 07, 2011 | 5 / 5 (1) | 0 |
Scientists at the University of Birmingham have developed a ground-breaking technique that uses a urine test to help to diagnose adrenal cancer.
Cancer Sep 16, 2011 | 5 / 5 (1) | 0 |
Researchers at the University of Pittsburgh School of Medicine have identified a cell-signaling pathway that plays a key role in increasing insulin secretion during pregnancy and, when blocked, leads to the development of ...
Diabetes Mar 16, 2012 | 5 / 5 (1) | 0 |
Endocrinology (from Greek ἔνδον, endo, "within"; κρῑνω, krīnō, "to separate"; and -λογία, -logia) is a branch of biology and medicine dealing with the endocrine system, its diseases, and its specific secretions called hormones, the integration of developmental events such as proliferation, growth, and differentiation (including histogenesis and organogenesis) and the coordination of metabolism, respiration, excretion, movement, reproduction, and sensory perception depend on chemical cues, substances synthesized and secreted by specialized cells.
Endocrinology is concerned with the study of the biosynthesis, storage, chemistry, and physiological function of hormones and with the cells of the endocrine glands and tissues that secrete them.
The endocrine system consists of several glands, all and in different parts of the body, that secrete hormones directly into the blood rather than into a duct system. Hormones have many different functions and modes of action; one hormone may have several effects on different target organs, and, conversely, one target organ may be affected by more than one hormone.
In the original 1902 definition by Bayliss and Starling (see below), they specified that, to be classified as a hormone, a chemical must be produced by an organ, be released (in small amounts) into the blood, and be transported by the blood to a distant organ to exert its specific function. This definition holds for most "classical" hormones, but there are also paracrine mechanisms (chemical communication between cells within a tissue or organ), autocrine signals (a chemical that acts on the same cell), and intracrine signals (a chemical that acts within the same cell). A neuroendocrine signal is a "classical" hormone that is released into the blood by a neurosecretory neuron (see article on neuroendocrinology).
Hormones act by binding to specific receptors in the target organ. As Baulieu notes, a receptor has at least two basic constituents:
Between these is a "transduction mechanism" in which hormone binding induces allosteric modification that, in turn, produces the appropriate response.
For more information about Endocrinology, read the full article at
This text uses material from Wikipedia and is available under the GNU Free Documentation License.