Vitamin B2: Difference between revisions
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[[File:Riboflavin.png|thumb|Vitamin B2 structure]] | [[File:Riboflavin.png|thumb|Vitamin B2 structure]] | ||
Riboflavin or vitamin B<sub>2</sub> is part of coenzymes flavinadenominemononucleotide(FAD) and flavinmononucleotide(FMN), plays a key role in oxidative metabolism. | Riboflavin or vitamin B<sub>2</sub> is part of coenzymes flavinadenominemononucleotide (FAD) and flavinmononucleotide (FMN), plays a key role in oxidative metabolism. | ||
===Source=== | ===Source=== | ||
A small amount is found in many foods. Good sources are meat, fish, offal, vegetables, milk, cheese, eggs, whole grain cereals. | A small amount is found in many foods. Good sources are meat, fish, offal, vegetables, milk, cheese, eggs, whole grain cereals. | ||
'''Recommended daily intake''' for adults: 1.2 to 1.5 mg <ref name="DACH"> | |||
=== | {{Cite | ||
Deficiency of food is sparse, | | type = book | ||
Clinical picture : seborrheic dermatitis , conjunctivitis , sometimes keratitis , photophobia, impaired growth, angular cheilitis , peeling lips, mucous membranes (cheilosis), atrophic glossitis, dysphagia, | | corporation = Deutsche Gesellschaft für Ernährung, Österreichische Gesellschaft für Ernährung, Sweizerische Gesellschaft für Ernährungforschung, Sweizerische Vereinigung für Ernährung | ||
| title = Referenzwerte für die Nährstoffzufuhr (DACH) | |||
| edition = 1 | |||
| location = Frankfurt am Main | |||
| publisher = Umschau/Braus | |||
| year = 2000 | |||
| range = 216 | |||
| isbn = 3-8295-7114-3 | |||
}} | |||
</ref> | |||
===Deficiency=== | |||
Deficiency caused by the lack of riboflavin in food is sparse, may be secondary due to malabsorption, enterocolitis, coeliac disease , chronic hepatitis in children is often a broad-spectrum antibiotics . | |||
Clinical picture : seborrheic dermatitis, conjunctivitis, sometimes keratitis, photophobia, impaired growth, angular cheilitis, peeling lips, mucous membranes (cheilosis), atrophic glossitis, dysphagia, normocytic normochromic anemia and bone marrow hypoplasia. | |||
Laboratory evaluation: decreases secretion of vit. B<sub>2</sub> below 32 mg/24 h, decreased concentrations of glutathione and glutathione reductase in erythrocytes. | Laboratory evaluation: decreases secretion of vit. B<sub>2</sub> below 32 mg/24 h, decreased concentrations of glutathione and glutathione reductase in erythrocytes. | ||
=== | ===Excess=== | ||
Signs of excess are not known. | Signs of excess are not known. | ||
<noinclude> | <noinclude> | ||
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* [[Fat Soluble Vitamins]] | * [[Fat Soluble Vitamins]] | ||
* [[Water Soluble Vitamins]] | * [[Water Soluble Vitamins]] | ||
===Reference=== | |||
<references /> | |||
=== Bibliography === | === Bibliography === | ||
* {{Cite | * {{Cite | ||
Revision as of 11:45, 2 February 2012
Riboflavin or vitamin B2 is part of coenzymes flavinadenominemononucleotide (FAD) and flavinmononucleotide (FMN), plays a key role in oxidative metabolism.
Source
A small amount is found in many foods. Good sources are meat, fish, offal, vegetables, milk, cheese, eggs, whole grain cereals. Recommended daily intake for adults: 1.2 to 1.5 mg [1]
Deficiency
Deficiency caused by the lack of riboflavin in food is sparse, may be secondary due to malabsorption, enterocolitis, coeliac disease , chronic hepatitis in children is often a broad-spectrum antibiotics . Clinical picture : seborrheic dermatitis, conjunctivitis, sometimes keratitis, photophobia, impaired growth, angular cheilitis, peeling lips, mucous membranes (cheilosis), atrophic glossitis, dysphagia, normocytic normochromic anemia and bone marrow hypoplasia. Laboratory evaluation: decreases secretion of vit. B2 below 32 mg/24 h, decreased concentrations of glutathione and glutathione reductase in erythrocytes.
Excess
Signs of excess are not known.
Links
Related articles
Reference
- ↑ Deutsche Gesellschaft für Ernährung, Österreichische Gesellschaft für Ernährung, Sweizerische Gesellschaft für Ernährungforschung, Sweizerische Vereinigung für Ernährung. . Referenzwerte für die Nährstoffzufuhr (DACH). 1. edition. Frankfurt am Main : Umschau/Braus, 2000. 216 pp. ISBN 3-8295-7114-3.
Bibliography
- BENCKO, Vladimir, et al. Hygiene and epidemiology : selected chapters. 2. edition. Prague. 2008. ISBN 80-246-0793-X.
