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Nutritional Laboratory Markers in Malnutrition

FMH Endocrinology-Diabetology, Fichtlirain 33, CH-4105 Biel-Benken, Basel, Switzerland
Received: 10 May 2019 / Revised: 28 May 2019 / Accepted: 29 May 2019 / Published: 31 May 2019
Serum visceral proteins such as albumin and prealbumin have traditionally been used as markers of the nutritional status of patients. Prealbumin is nowadays often preferred over albumin due to its shorter half live, reflecting more rapid changes of the nutritional state. However, recent focus has been on an appropriate nutrition-focused physical examination and on the patient’s history for diagnosing malnutrition, and the role of inflammation as a risk factor for malnutrition has been more and more recognized. Inflammatory signals are potent inhibitors of visceral protein synthesis, and the use of these proteins as biomarkers of the nutritional status has been debated since they are strongly influenced by inflammation and less so by protein energy stores. The current consensus is that laboratory markers could be used as a complement to a thorough physical examination. Other markers of the nutritional status such as urinary creatinine or 3-methylhistidine as indicators of muscle protein breakdown have not found widespread use. Serum IGF-1 is less influenced by inflammation and falls during malnutrition. However, its concentration changes are not sufficiently specific to be useful clinically as a marker of malnutrition, and serum IGF-1 has less been used in clinical trials. Nevertheless, biomarkers of malnutrition such as prealbumin may be of interest as easily measurable predictors of the prognosis for surgical outcomes and of mortality in severe illnesses. View Full-Text
Keywords: malnutrition; inflammation; nutritional assessment; biomarkers; albumin; prealbumin; IGF-1; elderly; prognostic marker malnutrition; inflammation; nutritional assessment; biomarkers; albumin; prealbumin; IGF-1; elderly; prognostic marker
MDPI and ACS Style

Keller, U. Nutritional Laboratory Markers in Malnutrition. J. Clin. Med. 2019, 8, 775.

AMA Style

Keller U. Nutritional Laboratory Markers in Malnutrition. Journal of Clinical Medicine. 2019; 8(6):775.

Chicago/Turabian Style

Keller, Ulrich. 2019. "Nutritional Laboratory Markers in Malnutrition" J. Clin. Med. 8, no. 6: 775.

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