Effect of parathyroidectomy on bone tissue biomarkers and body composition in patients with chronic kidney disease and secondary hyperparathyroidism

Autor(es)

de Siqueira, Flavia Ramos ^[1] ; de Oliveira, Karin Carneiro ^[1] ; Dominguez, Wagner Vasques ^[1] ; Madid Truyts, Cesar Augusto ^[1] ; Affonso Moyses, Rosa Maria ^[1] ; dos Reis, Luciene Machado ^[1] ; Jorgetti, Vanda ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Hosp Clin HCFMUSP, Fac Med, LIM Lab Fisiopatol Renal 16, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: European Journal of Clinical Nutrition; v. 75, n. 7, p. 1126-1133, JUL 2021.
• Citações Web of Science: 1

Resumo

Background/objective Loss of renal function may induce secondary hyperparathyroidism (s-HPT), which triggers several complications leading to an extreme decline in quality of life and increased mortality in affected patients. We evaluated whether parathyroidectomy (PTx), as surgical treatment for s-HPT, modifies body composition, and hormones involved in the protein-energy metabolism of affected patients. Subjects/methods Overall, 30 s-HPT patients were evaluated at two times, before PTx (pre PTx) and 6 months after PTx (post PTx). Patients were evaluated by biochemistry analysis, anthropometry, electrical bioimpedance (BIA), food intake diary, handgrip strength, and modified global subjective nutritional assessment (SGA). Results After PTx, patients showed decreased serum levels of total and ionic calcium, as well as decreased alkaline phosphatase and PTH, and increased 25 (OH) vitamin D. These results demonstrate that PTx was efficient to correct part of the mineral disorder. We also observed an increase in caloric intake, body weight, body mass index (BMI), phase angle, handgrip strength, SGA score, and a decreasing in the percentage of weight loss. The osteocalcin concentration of both carboxylated (cOC) and undercarboxylated form was diminished post PTx. The cOC correlated with bone metabolism markers and SGA score. Conclusions PTx modified body composition improving nutritional status and preventing the progression of weight loss with increased of energy intake, BMI, handgrip strength, phase angle of BIA, and SGA score. The present study also suggests an association of cOC with bone markers and SGA score. Further studies are needed to better clarify these associations with larger sample size. (AU)

• Processo FAPESP: 15/13126-8 - Efeito da paratireoidectomia no tecido ósseo, na composição corporal e no metabolismo energético de pacientes com doença renal crônica e hiperparatireoidismo secundário
• Beneficiário: Vanda Jorgetti
• Modalidade de apoio: Auxílio à Pesquisa - Regular