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My name is Poon Cheng Moh. I have been teaching biology in SMK(P) Raja Zarina, Port Klang for 26 years. I sincerely hope that this blog on SPM Biology will be useful to both teachers and students.

Wednesday, July 13, 2011

Kwashiokor and Marasmus

Kwashiokor
What Is Kwashiorkor?

Kwashiorkor is a disease caused by the lack of protein in a child's diet. Kwashiorkor is a type of protein energy malnutrition (PEM) that is widespread throughout the developing world. Infants and children growing up in tropical or subtropical areas (such as Africa, Asia, and South America) where there is much poverty are at risk for kwashiorkor.

The term "kwashiorkor" comes from a word used in Ghana that means a "disease of a baby deposed from the breast when the next one is born." Kwashiorkor usually happens when a baby is weaned from protein-rich breast milk (for any reason) and switched to protein-poor foods. In impoverished countries, protein-rich foods are difficult to acquire.

What Are the Symptoms of Kwashiorkor?

Children with kwashiorkor have edema (excess water retention in body tissues), which makes them look puffy and bloated. They are weak and irritable, and in many cases their skin flakes, and their hair loses its curliness and color. If left untreated, kwashiorkor causes enlargement of the liver, loss of fluids (dehydration) from the bloodstream even when the child has edema, stunted growth, and severe infection due to a weakened immune system. It also can result in jaundice, drowsiness, and a lowered body temperature.

What is Marasmus?

Marasmus is a form of protein-energy malnutrition occurring chiefly among very young children in developing countries, particularly under famine/starvation conditions, in which a mother's milk supply is greatly reduced. Marasmus results from the inadequate intake of both protein and calories.

What Are the Symptoms of Marasmus?

Marasmus is characterized by growth retardation (in weight more than in height) and progressive wasting of subcutaneous fat and muscle. Other symptoms may include diarrhea; dehydration; behavioral changes; dry, loose skin; and dry, brittle hair. Marasmus can be treated with a high-calorie, protein-rich diet. Severe, prolonged marasmus may result in permanent mental retardation and impaired growth.

Marasmus

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