Despite Inflammation, Supplemented Essential Amino Acids May Improve Circulating Levels of Albumin and Haemoglobin in Patients after Hip Fractures.

Dipartimento di Biologia e Biotecnologie Università degli Studi di Pavia, Via Ferrata, 1. I-27100 Pavia, Italy. dottore.aquilani@gmail.com. Istituto Geriatrico P. Redaelli -Reparti di Riabilitazione Geriatrica e di Mantenimento, Via Leopardi, 3. I-20090 Vimodrone, Milano, Italy. zuccarelli1@msn.com. Dipartimento di Scienze del Farmaco, Università degli Studi di Pavia, Viale Taramelli, 14. I-27100 Pavia, Italy. annamaria.condino@unipv.it. Istituto Geriatrico P. Redaelli -Reparti di Riabilitazione Geriatrica e di Mantenimento, Via Leopardi, 3. I-20090 Vimodrone, Milano, Italy. m.catani@golgiredaelli.it. Istituto Geriatrico P. Redaelli -Reparti di Riabilitazione Geriatrica e di Mantenimento, Via Leopardi, 3. I-20090 Vimodrone, Milano, Italy. c.rutili@golgiredaelli.it. Istituto Geriatrico P. Redaelli -Reparti di Riabilitazione Geriatrica e di Mantenimento, Via Leopardi, 3. I-20090 Vimodrone, Milano, Italy. lidiadelvecchio@libero.it. Istituto Geriatrico P. Redaelli -Reparti di Riabilitazione Geriatrica e di Mantenimento, Via Leopardi, 3. I-20090 Vimodrone, Milano, Italy. p.pisano@golgiredaelli.it. Dipartimento di Biologia e Biotecnologie Università degli Studi di Pavia, Via Ferrata, 1. I-27100 Pavia, Italy. manuela.verri@unipv.it. Dipartimento di Biologia e Biotecnologie Università degli Studi di Pavia, Via Ferrata, 1. I-27100 Pavia, Italy. paolo.iadarola@unipv.it. Dipartimento di Medicina Molecolare, Università degli Studi di Pavia, Viale Taramelli, 3/B. I-27100 Pavia, Italy. simona.viglio@unipv.it. Dipartimento di Scienze del Farmaco, Università degli Studi di Pavia, Viale Taramelli, 14. I-27100 Pavia, Italy. federica.boschi@unipv.it.

Nutrients. 2017;(6)
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Abstract

Essential amino acids (EAAs) are nutritional substrates that promote body protein synthesis; thus we hypothesised that their supplementation may improve circulating albumin (Alb) and haemoglobin (Hb) in rehabilitative elderly patients following hip fractures (HF). Out of the 145 HF patients originally enrolled in our study, 112 completed the protocol. These subjects were divided into two randomised groups, each containing 56 patients. For a period of two months, one group (age 81.4 ± 8.1 years; male/female 27/29) received a placebo, and the other (age 83.1 ± 7.5 years; male/female 25/31) received 4 + 4 g/day oral EAAs. At admission, the prevalence of both hypoAlb (<3.5 g/dL) and hypoHb (<13 g/dL male, <12 g/dL female) was similar in the placebo group (64.3% hypoAlb, 66% hypoHb) and the treated group of patients (73.2% hypoAlb, 67.8% hypoHb). At discharge, however, the prevalence of hypoAlb had reduced more in EAAs than in placebo subjects (31.7% in EAAs vs. 77.8% in placebo; p < 0.001). There was a 34.2% reduction of anaemia in hypoHb in EAA subjects and 18.9% in placebo subjects, but the difference was not statistically significant. Oral supplementation of EAAs improves hypoAlb and, to a lesser extent, Hb in elderly rehabilitative subjects with hip fractures. Anaemia was reduced in more than one third of patients, which, despite not being statistically significant, may be clinically relevant.

Methodological quality

Publication Type : Randomized Controlled Trial

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