Nutritional Diseases Flashcards
Also referred to as protein energy malnutrition or PEM
Malnutrition
Consequence of inadequate intake of proteins and calories, or deficiencies in the digestion or absorption of proteins, resulting in the loss of fat and muscle tissue, weight loss, lethargy, and generalized weakness
Malnutrition
Malnutrition is also referred to as?
Protein energy malnutrition or PEM
Often lethal disease affecting children
Severe protein energy malnutrition or PEM
Common in low-income countries
Severe protein energy malnutrition or PEM
25% of children may be affected
Severe protein energy malnutrition or PEM
Major factor in the high death rates among children younger than 5 years
Severe protein energy malnutrition or PEM
In the West Africa country of Niger, which suffered a severe famine. In that country, malnutrition was a direct or indirect cause of mortality in how many percent (a) of children under age (b)?
a. 60%
b. 5
Decreased food intake can also occur due to sharp increases in prices, as was seen in the first half of?
2008
Two ends of the spectrum of PEM syndromes
- Marasmus
- Kwashiorkor
Two differentially regulated protein compartments in the body
- Somatic compartment (Marasmus)
- Visceral compartment (Kwashiorkor)
Represented by proteins in skeletal muscles
Somatic compartment (Marasmus)
Represented by protein stores in the visceral organs, primarily the liver
Visceral compartment (Kwashiorkor)
When weight falls to 60% of normal for sex, height, and age
Marasmus
Growth retardation and loss of muscle
Marasmus
Anemia and manifestations of multiple vitamin deficiencies are present
Marasmus
Concurrent infections of marasmus
Immune deficiency, particularly T cell-mediated immunity
This seems to be an adaptive response that provides the body with amino acids as a source of energy
Loss of muscle
The visceral protein compartment, which is presumably more precious and critical for survival, is only marginally depleted, and hence _____ levels are either normal or only slightly reduced
Serum albumin
In addition to muscle proteins, _____ is also mobilized and used as fuel
Subcutaneous fat
The production of ______ is low, which may stimulate the hypothalamic-pituitary-adrenal axis to produce high levels of cortisol that contribute to lipolysis
Leptin
Protein deprivation is relatively greater than the reduction in total calories
Kwashiorkor
Most common form of PEM seen in African children who have been weaned too early and subsequently fed, almost exclusively, a carbohydrate diet
Kwashiorkor
High in impoverished countries of Southeast Asia
Kwashiorkor
Less severe forms worldwide of Kwashiorkor
a. Chronic diarrheal states in which protein is not absorbed
b. Chronic protein loss due to conditions such
c. Protein-losing enteropathies
d. Nephrotic syndrome
e. Extensive burns
f. Fad diets or replacement of milk by rice-based beverages have been reported in the United States
______ is associated with severe loss of the visceral protein department, and the resultant ________ gives rise to generalized or dependent
a. Edema-marked protein deprivation
b. Hypoalbuminemia