1 - Nutritional Disease Flashcards
Emaciation resulting from inadequate intake of calories (starvation); carb, protein, and fats all equally deficient.
Marasmus
How is the protein depletion manifested in Kwashiorkor?
Loss of organ protein (albumin) causing generalized edema (anasarca) and fatty liver
What are the hair and skin changes due to protein deficiency in Kwashiorkor?
- Depigmented hair and alopecia
- Flaky paint skin
What is the acid erosion of lingual surfaces of upper anterior teeth associated with Bulimia called?
Perimolysis
In Bulimic patients, yellow skin can result from what?
Carotemia
Anorexia Nervosa and Bulimia can feature deficiencies of what?
Vitamin C, Niacin, Zn?
What 3 things do fat cells produce?
leptin, adiponectin, and cytokines
- Turns off appetite control in hypothalamus
- Causes secretion of NE which burns fat (exercise and heat). GOOD.
Leptin
- Directs fatty acids to muscle for oxidation
- Makes liver sensitive to insulin. GOOD.
Adiponectin
- Cause subclinical inflammation
- High C-reactive protein. BAD.
Cytokines
What does the stomach produce, which increases appetite?
Ghrelin
What are Gallstones composed of?
Cholesterol
What does Hyperestrogenemia contribute to?
breast and endometrial cancer
What Obesity associated health risk is characterized by: Enormous abdominal obesity compresses diaphragm causing restriction of ventilation, sleep apnea, hypoxia.
Pickwickian (Hypoventilation) Syndrome
What are the sources of Vitamin A?
vegetables and dairy
Where is Vit. A stored?
Ito cells in liver for 6 months
What are the sources of Vitamin D?
Suntanned skin (only 15 mins daily); Dairy, fish oil, grains
What is the function of Vit. D?
Maintains serum Ca
- increasing intestinal absorption
- mobilizes Ca from bone (with PTH)
- Reabsorption of Ca from distal renal tubules
What does Vit. D deficiency in kids result in?
Rickets
What does Vit. D deficiency in adults result in?
Osteomalacia
In Vit. A Deficiency, there is increased mortality from infections, especially …?
Measles
What are 2 Vit. A Deficiency Diseases?
- Night Blindness
- Squamous Metaplasia (dry eyes, coral blindness, dry mouth, skin lesions, white premalignant oral lesions)
What is caused from an excess in Vit. A? (3)
- Carotemia (yellow color in skin and fat from stored beta carotene)
- Headache, vomiting
- Birth defects (retinoids)
Why is there is no Hypocalcemia associated with Vit. D Deficiency?
PTH mobilizes Ca from bones
What is the biggest increased risk of cancer associated with Vit. D Deficiency?
Colon; breast and prostate to a lesser extent
In Vit. D what is produced but not mineralized; Children - soft deformed bones, bow legs, hypo plastic teeth; Adults - fractures?
Osteoid
What is the therapeutic use of Vit. D?
- Enhance the immune system
- Prevent bacterial and viral infections
Therapeutic treatment of Vit. D might be helpful in patients with what?
Sepsis
What is the function of Vit. E?
Major Antioxidant - scavenges free radicals (along with selenium)
What is the result of excess Vitamin E?
Bleeding Diathesis - excessive bleeding
What are the Deficiency Diseases of Vit. E
- loss of nerve cells in spinal cord and nerve myelin (causing los of reflexes, proprioception and pain sensation)
- Shortened RBC life
What is Vit. K a cofactor to?
carboxylate glutamate
Vit. K is a cofactor to carboxylate glutamate which allows calcium binding sites on …
- Clotting factors VII, IX, X, prothrombin
- Osteocalcin (Ca binding of bone matrix)
In what patients is Vitamin K Deficiency seen?
- Diseases of fat malabsorption
- Pts on Coumadin
- Not gut bacteria (antibiotics, neonates)
What are the Deficiency states in pts with Vitamin K Deficiency?
- bleeding especially in neonates
- poor calcification of bone matrix