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Describe how a deficiency of vitamin A and protein can compromise the body's defenses against infection.
Vitamin A deficiency can result from inadequate intake, fat malabsorption, or liver disorders. Deficiency impairs immunity and hematopoiesis and causes skin rashes and typical ocular effects (eg, xerophthalmia, night blindness). [ Diagnosis is based on typical ocular findings and low vitamin A levels. Treatment consists of vitamin A given orally or, if symptoms are severe or malabsorption is the
cause, parenterally. ]
Expert answered|batotoy|Points 50|
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Asked 11/7/2011 6:54:44 PM
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The major role that the hormone ghrelin plays in eating is to: Answers: signal hunger on an empty stomach. signal appetite when receiving external stimuli. signal satiation when the stomach is full. signal satiety several hours after a meal.
Weegy: ll those people who are really disappointed by their never ending hunger, which creates an urge to eat more and more resulting in weight gain, awful figure and body shape, [ after which we gain so much that we think opt for cosmetic surgeries to lose the unwanted fat in our body by Abdominoplasty, tummy tuck, liposuction, lap band surgery etc. Stop blaming yourself ! Now scientists have found the reason for this never ending hunger – Ghrelin the hunger hormone. Yes what you read is correct it’s Ghrelin a hormone which is secreted by P/D1 cells found in stomach lining and upper intestines that stimulates hunger. Apart from stimulating the hunger Ghrelin is also known to promote the production in growth hormone in foetuses. However that’s not exactly Ghrelin is known for. As mentioned it stimulates the appetite and carries the messages between the brain and the digestion system of human body to inform that it is right time to eat. The secretion level of Ghrelin increases before eating and decreases simultaneously after the intake, it has been seen that Ghrelin slows the body metabolism and reduces the fat burning mechanism in the human body. Abdominoplasty is a surgical procedure which is performed when it really becomes really difficult for the patient to rely on anti obesity drugs and workouts. There are many anti obesity drugs available in the market which are recommended by physician to keep a control on your diet as these drugs results in less secretion of Ghrelin hormone resulting in controlling the Obesity and weight gain. Good and sound sleep also plays a major role in balanced secretion of Ghrelin hormone resulting in a healthy body, it has been noticed that people who do not take proper sleep and meals at right time tend to become more obese and gain more weight, as due to improper sleep and bad food habits the secretion of Ghrelin gets affected. One should always follow the saying ‘Early to bed and early to rise makes a man healthy n ... (More)
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Asked 10/31/2011 3:26:39 PM
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Nutrition authorities agree that the staple foods of high-protein, low-carbohydrate diets clearly raise the risk for: Answers: osteoporosis. kidney disease. heart and artery disease. cancer.
Weegy: Nutrition authorities agree that the staple foods of high-protein, low-carbohydrate diets clearly raise the risk for Kidney Disease. Its also a good way to get a kidney stone. (More)
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Updated 11/10/2011 6:44:46 PM
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Heart and Artery Discease (I have Nuitrition class and I'm using the Nuitrion: Concepts and Controversies Book.) I'm looking at the page.
Added 11/10/2011 6:44:47 PM
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