Circulating 20S proteasome for assessing protein energy wasting syndrome in hemodialysis patients
2020
Aniort, Julien | Freist, Marine | Piraud, Aurelien | Philipponnet, Carole | Hadj-Abdelkader, Mohamed | Garrouste, Cyril | Gentes, Elodie | Pereira, Bruno | Heng, Anne-Elisabeth | Unité de Nutrition Humaine (UNH) ; Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | CHU Gabriel Montpied [Clermont-Ferrand] ; CHU Clermont-Ferrand | Centre Hospitalier Emile Roux [Le Puy-en-Velay] (CH Le Puy) | Service Nutrition Clinique [CHU Clermont-Ferrand] ; Pôle RHEUNNIRS [CHU Clermont-Ferrand] ; CHU Gabriel Montpied [Clermont-Ferrand] ; CHU Clermont-Ferrand-CHU Clermont-Ferrand-CHU Gabriel Montpied [Clermont-Ferrand] ; CHU Clermont-Ferrand-CHU Clermont-Ferrand | Direction de la Recherche Clinique et de l’Innovation [CHU Clermont-Ferrand] (DRCI) ; CHU Clermont-Ferrand
International audience
اظهر المزيد [+] اقل [-]إنجليزي. Protein energy wasting (PEW) including muscle atrophy is a common complication in chronic hemodialysis patients. The ubiquitin proteasome system (UPS) is the main proteolytic system causing muscle atrophy in chronic kidney disease and proteasome 20S is the catalytic component of the UPS. Circulating proteasome 20S (c20S proteasome) is present in the blood and its level is related to disease severity and prognosis in several disorders. We hypothesized that c20S proteasome could be related with muscle mass, other PEW criteria and their evolution in hemodialysis patients. Stable hemodialysis patients treated at our center for more than 3 months were followed over 2 years. C20S proteasome assay was performed at baseline. Biological and clinical data were collected, muscle mass was assessed by multi-frequency bio-impedancemetry, and nutritional scores were calculated at baseline, 1 year and 2 years. Hospitalizations and mortality data were collected over the 2 years. Forty-nine patients were included. At baseline, the c20S proteasome level was 0.40[0.26-0.55] mug/ml. Low muscle mass as defined by a lean tissue index (LTI) < 10th in accordance with the International Society of Renal Nutrition and Metabolism guidelines was observed in 36% and PEW in 62%. Increased c20S proteasome levels were related with LTI at baseline (R = 0.43, p = 0.004) and with its 2 year-variation (R = -0.56, p = 0.003). Two-year survival rate was not different between higher and lower c20S proteasome values (78.9 vs 78.4%, p = 0.98 log-rank test). C20S proteasome is not a good marker for assessing nutritional status in hemodialysis patients and predicting patient outcomes.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل Institut national de la recherche agronomique