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Vitamin in Biological Definition

Nutrition

... on cells, and certain food elements such as vitamin C have been seen to be vital in protecting ... damage. Recently the health benefits of vitamin E have been called into question. The balance ... and obesity through overeating. Mineral or vitamin deficiencies are thought to be responsible for ...

Vitamin

... therefore must obtain from its diet . The term vitamin does not encompass other essential nutrients ... Humans require 13 different vitamins. The word vitamin was coined by the Polish biochemist ... 1 History 2 Human vitamins 2.1 vitamin deficiency and excess 2.2 About names ...

Collagen

... in enzymatic processes of post translational modification, for which vitamin C is required. This is related to why vitamin C deficiencies can cause scurvy , a disease that leads to loss of teeth ...

Hormone

... contain pharmacologic equivalents of adrenalin , while steroid and vitamin D creams are used extensively in dermatological practice. A " ... progesterone Progestins Sterol hormones vitamin D derivatives calcitriol Lipid and phospholipid ...

Kwashiorkor

... several type I nutrients (e.g iron , folic acid , iodine , selenium , vitamin C ), particularly those involved with anti-oxidant protection. Important ... reduced in children with kwashiorkor include glutathione , albumin , vitamin E and polyunsaturated fatty acids. Therefore, if a child with reduced ...

Skin

... protect underlying muscles and organs . Skin is used for insulation , vitamin D production, sensation , and excretion (through sweat ). Skin on ... a storage centre for lipids and water, as well as a means of synthesis of vitamin D by action of UV on certain parts of the skin. Absorption: Oxygen, ...

Cancer

... with increased risk of colon cancer . A large randomized trial is currently underway to investigate whether men taking daily selenium or vitamin E or both experience a reduced incidence of prostate cancer in comparison to men taking placebo pills. Daily use of tamoxifen , a selective ...

Flavin

... Aveyron dpartement , in France Riboflavin Flavin is a tricyclic heteronuclear organic ring whose biochemical source is the vitamin riboflavin . The flavin moiety is often conjugated with an adenosine diphosphate to form flavin adenine dinucleotide ( FAD ), and in other ...

Flavin

... Aveyron dpartement , in France Riboflavin Flavin is a tricyclic heteronuclear organic ring whose biochemical source is the vitamin riboflavin . The flavin moiety is often conjugated with an adenosine diphosphate to form flavin adenine dinucleotide ( FAD ), and in other ...

Liver

... hemoglobin . The liver converts ammonia to urea . The liver stores of a multitude of substances, including glucose in the form of glycogen, vitamin B12 , iron , and copper . In the first trimester fetus , the liver is the main site of red blood cell production. By the 42nd week of ...

Nicotinamide adenine dinucleotide

... charged nitrogen, and one hydrogen attaches to the carbon atom opposite to the nitrogen. The human body synthesises NAD from the vitamin niacin in the form of nicotinic acid or nicotinamide. See also Adenine Nucleotide References and external links ...

Nicotinamide adenine dinucleotide

... charged nitrogen, and one hydrogen attaches to the carbon atom opposite to the nitrogen. The human body synthesises NAD from the vitamin niacin in the form of nicotinic acid or nicotinamide. See also Adenine Nucleotide References and external links ...

Nicotinamide adenine dinucleotide

... charged nitrogen, and one hydrogen attaches to the carbon atom opposite to the nitrogen. The human body synthesises NAD from the vitamin niacin in the form of nicotinic acid or nicotinamide. See also Adenine Nucleotide References and external links ...

Proprioception

... in Oliver Sacks ' book The Man Who Mistook His Wife for a Hat . Temporary impairment has also been known to occur due to an overdose of vitamin B6 (pyridoxine and pyridoxamine). Most of the impaired function discontinues shortly after the intake of vitamins returns to normal. Impairment can ...

Signal transduction

... nuclear receptors are lipophilic hormones, with steroid hormones (for example, testosterone , progesterone and cortisol ) and derivatives of vitamin A and D among them. These hormones play a key role in the regulation of metabolism , organ function, developmental processes and cell ...

X chromosome

... are hemophilia (types A and B), and color blindness . There are few examples of X-linked dominant diseases; the best known in this category is vitamin D resistant rickets . The following genetic disorders are associated with the X chromosome: Alport syndrome androgen ...
Other Contents
(Date:8/29/2014)... explored the type and number of connections in transcription ... on robustness in a study published in PLOS ... that the assortativity signature contributes to a network,s resilience ... varying the out-out assortativity of TFN models has a ... other three types of assortativity," said Dov A. Pechenick, ...
(Date:8/29/2014)... marine phytoplankton, such as the prolific bloomer Emiliania ... researchers have discovered. The finding contradicts the common view ... microbes depend on scarce supplies of thiamine in the ... to think about the ocean," says CIFAR Senior Fellow ... Journal paper with CIFAR fellows John Archibald ...
(Date:8/29/2014)... USA - The rise of the Tibetan plateau -- ... -- is important for both its profound effect on ... study published in GSA Bulletin , Katharine Huntington ... isotope thermometry -- using modern and fossil snail shells ... in southwestern Tibet. , Views range widely on ...
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