Changes in body composition of cancer patients following combined nutritional support
The effects of combined nutritional support (parenteral, enteral, and oral) were measured in cancer patients unable to maintain normal alimentation.Changes in body composition were quantified by measurement of total body levels of nitrogen, potassium, water, and fat. The protein-calorie intake of the patients was also evaluated by dietary survey (4-day recall). Standard anthropometric and biochemical measurements for nutritional assessment were obtained for comparison. The dietary evaluation indicated that the dietary supplementation for all patients was more than adequate to meet their energy requirements. Determination of body composition indicated that change in body weight was equal to the sum of the changes in body protein, total body water, and total body fat. Information on the nature of the tissue gained was obtained by comparison of body composition data with the ratio of protein:water:lean body mass for normal tissue. The mean gain of protein in the cancer patients was quite small (0.3-0.6 kg). The main change in body weight appeared to be the result of gains in body water and body fat. The total body nitrogen to potassium ratio served to define the extent of tissue anabolism following hyperalimentation. The ratio dropped in the cancer patients following hyperalimentation toward the value of the control subjects on ad libitum diets. Total body nitrogen was determined by prompt gamma neutron activation analysis, total body potassium by whole-body counting. (JMT)
- Research Organization:
- Brookhaven National Laboratory, Medical Research Center, Upton, NY
- OSTI ID:
- 5652178
- Journal Information:
- Nutr. Cancer; (United States), Vol. 4:2
- Country of Publication:
- United States
- Language:
- English
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NEOPLASMS
THERAPY
NITROGEN
ACTIVATION ANALYSIS
PATIENTS
BODY COMPOSITION
FEEDING
POTASSIUM
WHOLE-BODY COUNTING
ADIPOSE TISSUE
CHEMICAL ANALYSIS
DIET
GAMMA RADIATION
METABOLISM
NEUTRON REACTIONS
NUTRIENTS
NUTRITION
PROTEINS
WATER
WEIGHT
ALKALI METALS
ANIMAL TISSUES
BARYON REACTIONS
BODY
CONNECTIVE TISSUE
COUNTING TECHNIQUES
DISEASES
ELECTROMAGNETIC RADIATION
ELEMENTS
HADRON REACTIONS
HYDROGEN COMPOUNDS
IONIZING RADIATIONS
METALS
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
RADIATIONS
TISSUES
550601* - Medicine- Unsealed Radionuclides in Diagnostics