Vitamin A

Lymphomas, Extraintestinal

What Are Extraintestinal Lymphomas? Extraintestinal lymphomas (non-Hodgkin’s) are malignancies that arise in peripheral lymphatic tissue outside the intestinal tract from B-cell and T-cell lymphocytes. Q: What is peripheral lymphatic tissue? A: Peripheral lymphatic tissue includes lymph vessels, lymph, lymph nodes, and ...

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Miscarriage (Spontaneous Abortion)

What Is Miscarriage? Miscarriage, or spontaneous abortion, is a reproductive failure characterized by loss of an unborn baby before the 20th week of pregnancy. What Is Miscarriage In Celiac Disease and/or Gluten Sensitivity?

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Nails, Dry And Brittle (Chip, Peel, Crack, Break Easily)

What Are Brittle Nails? Brittle nails are abnormalities of the nail plate that are characterized by poor nail structure affecting all fingernails and toenails seen as thin, dry nails that easily chip, split, and are difficult to maintain a clean ...

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Night Blindness – Nyctalopia

What Is Night Blindness? Night blindness is a visual defect caused by lack of rhodopsin in the rods of the retina located in the back of the eyeball due to inadequate vitamin A. Q: How does inadequate vitamin A cause ...

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Pityriasis Rubra Pilaris

What Is Pityriasis Rubra Pilaris? Pityriasis rubra pilaris (PRP) is a chronic generalized exfoliative dermatitis (sloughing skin) characterized by erythema (redness), scaling, dilated plugged hair follicles, and keratoderma (thickened skin) of the hands and feet that is often associated with ...

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Prurigo Nodularis (Hyde’s Prurigo)

What Is Prurigo Nodularis (Hyde’s Prurigo)? Prurigo nodularis is a chronic dermatitis characterized by hard, dry, deep seated, intensely itchy papules (small bumps like pimples) and/or nodules (large bumps) that erupt most commonly on the arms, legs, and back. Papules ...

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Seborrhea Dermatitis

What Is Seborrhea Dermatitis? Seborrhea dermatitis is a recurring inflammatory disorder of sebaceous glands characterized by scaly patches of skin, often with bumps. Seborrhea dermatitis results from the body’s inflammatory reaction to invasion by pityrosporum yeast that naturally inhabits the ...

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Vitamin A Deficiency

What Is Vitamin A? Vitamin A is a family of fat-soluble compounds that are essential for health, vision, protection of the body, reproduction, and normal growth of children before and after birth. Q: What is the family of vitamin A? ...

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Xerophthalmia

What Is Xerophthalmia? Xerophthalmia is a serious condition of extreme drying and thickening of the conjunctiva following chronic inflammation and failure to make tears, characterized by hazy, dry cornea. Vitamin A is obtained from the diet and is required in ...

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