Relationship of somatomedin-C/insulin-like growth factor I levels to conventional nutritional indices in critically ill patients. 1987

F H Hawker, and P M Stewart, and R C Baxter, and M Borkmann, and K Tan, and I D Caterson, and D B McWilliam

Twenty ICU patients, with varying diagnoses and degrees of catabolism, were studied prospectively to determine whether somatomedin-C/insulin-like growth factor I (SMC/IGFI) is related to the conventional nutritional indices, plasma prealbumin, transferrin and albumin, and nitrogen balance (NB) in critical illness. Mean SMC/IGFI concentration in these critically ill patients was below the lower limit of the reference range. SMC/IGFI concentrations correlated with NB for the 24 h before measurement (r = .38, p less than .01) and with cumulative NB for the previous 2 (r = .50, p less than .01), 3 (r = .34, p less than .05), and 5 days (r = .46, p less than .05). Prealbumin correlated with cumulative 5-day NB (r = .39, p less than .05). Plasma albumin and transferrin concentrations did not correlate with NB for any of these time periods. SMC/IGFI concentrations correlated with cumulative protein (r = .59, p less than .01), carbohydrate (r = .63, p less than .01), and energy intake (r = .64, p less than .01). SMC/IGFI was the only index which consistently correlated with NB. We conclude it is a useful index of nutritional status in critically ill patients.

UI MeSH Term Description Entries
D007334 Insulin-Like Growth Factor I A well-characterized basic peptide believed to be secreted by the liver and to circulate in the blood. It has growth-regulating, insulin-like, and mitogenic activities. This growth factor has a major, but not absolute, dependence on GROWTH HORMONE. It is believed to be mainly active in adults in contrast to INSULIN-LIKE GROWTH FACTOR II, which is a major fetal growth factor. IGF-I,Somatomedin C,IGF-1,IGF-I-SmC,Insulin Like Growth Factor I,Insulin-Like Somatomedin Peptide I,Insulin Like Somatomedin Peptide I
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D008991 Monitoring, Physiologic The continuous measurement of physiological processes, blood pressure, heart rate, renal output, reflexes, respiration, etc., in a patient or experimental animal; includes pharmacologic monitoring, the measurement of administered drugs or their metabolites in the blood, tissues, or urine. Patient Monitoring,Monitoring, Physiological,Physiologic Monitoring,Monitoring, Patient,Physiological Monitoring
D009584 Nitrogen An element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up about 78% of the earth's atmosphere by volume. It is a constituent of proteins and nucleic acids and found in all living cells.
D009752 Nutritional Status State of the body in relation to the consumption and utilization of nutrients. Nutrition Status,Status, Nutrition,Status, Nutritional
D011228 Prealbumin A tetrameric protein, molecular weight between 50,000 and 70,000, consisting of 4 equal chains, and migrating on electrophoresis in 3 fractions more mobile than serum albumin. Its concentration ranges from 7 to 33 per cent in the serum, but levels decrease in liver disease. Proalbumin,Transthyretin
D011446 Prospective Studies Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group. Prospective Study,Studies, Prospective,Study, Prospective
D003422 Critical Care Health care provided to a critically ill patient during a medical emergency or crisis. Intensive Care,Intensive Care, Surgical,Surgical Intensive Care,Care, Critical,Care, Intensive,Care, Surgical Intensive
D005260 Female Females

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