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Dictionary » Vitamin A

Vitamin A

Introduction: Vitamin A

Description of Vitamin A

Vitamin A: Retinol, a nutrient essential for proper vision and healthy skin and mucous membranes. Vitamin A is being studied in the prevention of cancer. It belongs to the family of drugs called retinoids.
Source: National Institute of Health

Vitamin A: A naturally-occurring acid of retinol. Vitamin A acid binds to and activates retinoic acid receptors (RARs), thereby inducing changes in gene expression that lead to cell differentiation, decreased cell proliferation, and inhibition of carcinogenesis. This agent also inhibits telomerase, resulting in telomere shortening and eventual apoptosis of some cancer cell types. The oral form of vitamin A acid has teratogenic and embryotoxic properties.(NCI04)
Source: Diseases Database

Vitamin A: Retinol and derivatives of retinol that play an essential role in metabolic functioning of the retina, the growth of and differentiation of epithelial tissue, the growth of bone, reproduction, and the immune response. Dietary vitamin A is derived from a variety of CAROTENOIDS found in plants. It is enriched in the liver, egg yolks, and the fat component of dairy products.
Source: MeSH 2007

Vitamin A: Related Topics

These medical condition or symptom topics may be relevant to medical information for Vitamin A:

Vitamin A: Treatments

Vitamin A (treatment): Another name for Vitamin A supplements.

Vitamin A (treatment): Nutritional supplements of vitamin A...more »

More information on treatment: Vitamin A supplements:

Terms associated with Vitamin A:

Terms Similar to Vitamin A:

Source: Diseases Database

Source - MeSH 2007

More specific terms for Vitamin A:

Source - MeSH 2007

Broader terms for Vitamin A

Source - MeSH 2007

The following terms can be used for Vitamin A

Source: CRISP

Hierarchical classifications of Vitamin A

The following list attempts to classify Vitamin A into categories where each line is subset of the next.

MeSH 2007 Hierarchy:

MeSH 2007 Hierarchy

MeSH 2007 Hierarchy

MeSH 2007 Hierarchy

External links related to: Vitamin A

Source: Diseases Database

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Medical dictionaries:

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