thiamin


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Related to thiamin: riboflavin, folate

thiamine

 [thi´ah-min]
vitamin B1, a component of the B complex group of vitamins, found in various foodstuffs and present in the free state in blood plasma and cerebrospinal fluid. Deficiency results in neurological symptoms, cardiovascular dysfunction, edema, and reduced intestinal motility. See also vitamin.

thi·a·min

(thī'ă-min),
A heat-labile and water-soluble vitamin contained in milk, yeast, and in the germ and husk of grains; also artificially synthesized; essential for growth; a deficiency of thiamin is associated with beriberi and Wernicke-Korsakoff syndrome.
[thia- + vitamin]

thiamin

See thiamine.

thiamin

A water-soluble B vitamin that is a necessary cofactor in alpha-keto decarboxylation, links glycolysis with the Krebs cycle (tricarboxylic acid cycle, the main source of energy in mammals), and is critical in the production of cyclic guanosine monophosphate. Thiamin aids in digestion; improves tolerance to pain; is useful against psoriasis, shingles and seborrhoeic dermatitis; and reduces gastric acidity. Absence of thiamin results in malnutrition, softened bones and mental depression.

Dietary sources
Grains, yeast and animal viscera.

megavitamin therapy

The administration of excess or 'hyper-doses' of water-soluble vitamins, either physician-guided–eg, to treat neuropathies, or self-prescribed by health-food advocates. See Decavitamin, Orthomolecular medicine, Vitamin.
Megavitamins, adverse effects  
Thiamin CNS hyperresponsiveness–convulsions, Parkinson's disease–thiamin antagonizes l-dopa, sensory neuropathy–destruction of dorsal axon roots
Niacin/nicotinic acid & niacinamide/nicotinamide Exacerbation of asthma–histamine release, cardiac disease–arrhythmias, GI symptoms, eg nausea, vomiting, diarrhea, anorexia, DM–hyperglycemia, gout–↑ uric acid, liver disease–enzyme leakage, hepatocellular injury, portal fibrosis or massive necrosis, cholestatic jaundice, peptic ulcer disease–histamine release, ↑ acidity, skin disease
Vitamin B6 Paresthesia, headaches, asthenia, irritability
Vitamin C ↑ Iron absorption, possibly iron overload, evoking diarrhea, renal calculus formation and possibly inhibiting the bacteriolytic activity of neutrophils, G6PD deficiency–↑ red cell lysis, megaloblastic anemia–↓ vitamin B12 absorption, nephrolithiasis–oxaluria Diagn Clin Testing 1990; 28:27  

thi·a·min

(thī'ă-min)
A heat-labile and water-soluble vitamin contained in milk, yeast, and the germ and husk of grains; also artificially synthesized; essential for growth; a deficiency of thiamin is associated with beriberi and Wernicke-Korsakoff syndrome.
Synonym(s): vitamin B1.
[thia- + vitamin]

thi·a·min

(thī'ă-min)
Heat-labile and water-soluble vitamin contained in milk, yeast, and in the germ and husk of grains; essential for growth. Sometimes spelled thiamine.
Synonym(s): vitamin B1.
[thia- + vitamin]

thiamin, thiamine

vitamin B1; a component of the B complex group of vitamins, found in various foodstuffs and present in the free state in blood plasma and cerebrospinal fluid. The pharmaceutical products are thiamin hydrochloride and thiamin pyrophosphate.

thiamin nutritional deficiency
an unlikely event in food animals with two exceptions: the secondary deficiency caused in horses and pigs by thiaminase in bracken and the primary deficiency in horses fed a diet almost entirely of turnips. In companion animals, the deficiency is much more common. Dogs, and particularly cats, fed diets in which thiamin has been destroyed, usually by excessive heat in processing but also by the inclusion of raw fish of certain marine species or sulfur dioxide as a food preservative, will develop signs of deficiency which include ataxia, mydriasis and convulsions.
References in periodicals archive ?
INGREDIENTS: Enriched Flour (Wheat Flour, * Niacin, Reduced Iron, Thiamin Mononitrate, Riboflavin, Folic Acid), Corn Syrup, Salt, Corn Oil, Yeast, Malt Extract, Sodium Bicarbonate, Ammonium Bicarbonate, and Artificial Flavor.
problem that surfaces when one wishes to use the laboratory to follow repletion with thiamin.
Enriched flour includes thiamin, niacin, riboflavin, vitamin B6 and iron.
Many athletes' diets indicate insufficiencies of calcium, thiamin, and riboflavin, plus excess amounts of fat.
Pasta has heaping helpings of vitamins like thiamin, riboflavin, and niacin, which help the body turn carbohydrates into energy.
TOASTED OATS Nutrition Facts Serving Size 1 cup (27g) Servings Per Package: About 16 Cereal With Amount per 1 Cup 1/2 Cup serving Cereal Skim Milk Calories 100 140 Calories from Fat 15 20 %Daily Value(*) Total fat 2 g 3% 3% Saturated Fat 0 g 0% 3% Cholesterol 0 mg 0% 1% Sodium 220 mg 9% 12% Potassium 90 mg 3% 8% Total carbohydrates 19 mg 6% 8% Dietary Fiber 2 g 8% 8% Sugars 1g Protein 4 g Vitamin A 25% 30% Vitamin C 25% 25% Calcium 4% 15% Iron 45% 45% Vitamin D 10% 20% Thiamin 25% 25% Riboflavin 25% 35% Niacin 25% 25% Vitamin B6 25% 25% Folate 25% 25% Vitamin B12 25% 30% Phosphorus 10% 20% Magnesium 10% 10% Zinc 6% 6% Copper 6% 6% (*) Percent Daily Values are based on a 2,000 calorie diet.
A listing of fourteen nutrients and food components must be provided to consumers, with disclosure of several other nutrients (such as thiamin and niacin) being optional.
The Thiamin B-1 based formula is completely natural and provides convenient protection from mosquito bites without the smell or mess of sprays, wipes and bands.
com, it's a good source of dietary fiber, protein, thiamin, riboflavin, folate, iron, magnesium and phosphorus, and a very good source of vitamins A, C, K and B6, as well as calcium, potassium, copper and manganese.