240 likes | 739 Views
Chapter 40. Medical Nutrition Therapy for Cancer Prevention, Treatment, and Recovery. Cancer. When cells divide and reproduce abnormally and have the potential to spread throughout the body, crowding out normal cells and tissues
E N D
Chapter 40 Medical Nutrition Therapy for Cancer Prevention, Treatment, and Recovery
Cancer • When cells divide and reproduce abnormally and have the potential to spread throughout the body, crowding out normal cells and tissues • One third of the cancer deaths in the United States each year can be attributed to nutrition and other lifestyle factors.
Cancer—Cause Algorithm content developed by John Anderson, PhD, and Sanford C. Garner, PhD, 2000.
Cancer—Pathophysiology Algorithm content developed by John Anderson, PhD, and Sanford C. Garner, PhD, 2000.
Cancer—Medical and Nutritional Management Algorithm content developed by John Anderson, PhD, and Sanford C. Garner, PhD, 2000.
Prevention Factors • Energy balance and exercise • Fat • Protein • Fiber • Fruits and vegetables • Chemoprevention
Prevention Factors—cont’d • Alcohol • Coffee and tea • Artificial sweeteners • Nitrates, nitrites, and nitrosamines • Method of food preparation
Fruits and Vegetables • Appear to have a protective effect against cancer • Thought to be due to the phytoestrogen and phytochemical content of the plant-based diet
Fat • Research, although controversial, has shown evidence that high-fat diets are linked to an increased risk of cancer of the breast, colon, lung, and prostate
American Cancer Society’s Dietary Recommendations for Cancer Prevention 1. Eat a variety of healthful foods, with an emphasis on plant sources. 2. Adopt a physically active lifestyle. 3. Achieve and maintain a healthy body weight throughout life. 4. Limit consumption of alcoholic beverages.
Pharmacological Agents for Anorexia-Cachexia Syndrome and Weight Loss Management • Appetite stimulants • Metabolic agents and cytokine blockers • Prokinetic drugs • Anabolic agents
Factors That Affect Appetite Reference: American Institute for Cancer Research: Food, nutrition, and the prevention of cancer: a global perspective, Washington, DC, 1997, AICR.
Nutritional Implications of Cancer Therapy • Chemotherapy —Taste abnormalities, diarrhea, constipation • Radiation therapy —Fatigue, loss of appetite, skin changes • Surgery —Fatigue, pain, loss of appetite • Immunotherapy —Flulike symptoms, decreased food intake
Nutritional Implications of Cancer Therapy—cont’d • Bone marrow transplant —Nausea, vomiting, diarrhea, mucositis, xerostomia, dysgeusia • Severe oral muscositis • Graft versus host disease (GVHD) • Veno-occlusive disease (VOD)
Marrow Transplantation—Cause Algorithm content developed by John Anderson, PhD, and Sanford C. Garner, PhD, 2000.
Marrow Transplantation—Pathophysiology Algorithm content developed by John Anderson, PhD, and Sanford C. Garner, PhD, 2000.
Marrow Transplantation—Medical and Nutritional Management Algorithm content developed by John Anderson, PhD, and Sanford C. Garner, PhD, 2000.
Guidelines for Oral Feeding During Antitumor Therapy —cont’d
Macrobiotic diet Vegetarian diet Gerson therapy Kelley/Gonzales regimen Juice therapies Shark cartilage DHEA Enzymes Oxymedicine Coenzyme Q10 Commonly Used Complementary and Alternative Therapies
Black cohosh Echinacea Flaxseed Ginger Iscador Milk thistle PC-SPECS Saw palmetto Soy and soy foods Teas Commonly Used Complementary and Alternative Therapies—cont’d
Nutrition in the Etiology of Cancer • Epidemiologic research has evaluated the role of diet in the etiology of cancer in different population groups. • Diets contain inhibitors and enhancers of carcinogenesis. • Laboratory studies have served as models to test the effect of food and nutrition on cancer development.