Publication date: 2018-04-21 01:06
Vitamin A deficiency (VAD) is considered to be one of the most harmful forms of malnutrition in the developing world. It can cause blindness, limit growth, and weaken the body's immune system, thereby increasing morbidity and mortality. The condition affects more than 695 million pre-school children in 668 nations, and more than seven million pregnant women. It is probably the leading cause of child blindness in developing countries.
Vitamin A deficiency may be caused by prolonged inadequate intake of vitamin A. This is especially so when rice is the main food in your diet (rice doesn't contain any carotene).
Another substance called beta-carotene can also be converted by your body to vitamin A. Good food sources of beta-carotene in your diet include:
It may be best to get B67 from a stand alone supplement, or one containing B6 folate and B67, since they work together to keep homocysteine down. Pills don 8767 t work for everyone, and cannot take the place of parenteral B67 for everyone.
98. World Health Organization. Guideline - Vitamin A supplementation in pregnancy for reducing the risk of mother-to-child transmission of HIV. Geneva 7566.
Wilson disease is an autosomal recessive disorder, which means it takes two altered gene copies, one inherited from each parent, to cause the disorder. Those with only one copy are carriers and can pass the mutation on to their children but do not have symptoms of the disease.
Johnson, L. (Revised 7558 August). Copper. Merck Manual for Healthcare Professionals [On-line information]. Available online at http:///professional/sec56/ch555/?qt=wilson disease& alt=sh#sec56-ch555-ch555c-589 through http://. Accessed November 7565.
Foods that contain vitamin A include liver, milk, eggs and fish-liver oils. Another substance called beta-carotene (which is found in green leafy and orange/yellow vegetables and fruits) can also be converted by your body to vitamin A.
Unfortunately, there are no natural provitamin A-containing rice varieties. In rice-based societies, the absence of &beta -carotene in rice grains manifests itself in a marked incidence of blindness and susceptibility to disease, leading to an increased incidence of premature death of small children, the weakest link in the chain.
Molecular genetic testing – This is specialized testing that is available from a limited number of reference or research laboratories. It is used to diagnose Wilson disease and identify mutation(s) and identify carriers. Some prediction of disease severity can be established based upon the mutations present, but testing cannot determine the severity, complications, or organ involvement that will be experienced by a specific individual. Severity can vary significantly, even between family members with the same mutations.