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Published on: March 26, 2016
A Preliminary Evaluation of the Kidney Function of Sugarcane Cutters From Brazil
Caíque Olegário Diniz1, Zachary McKenna, Lucas Canuto
1Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Minas Gerais, Brazil (Mr Diniz, Mr Canuto, Dr Magalhães, Dr Rocha-Vieira, Dr Amorim); Departamento de Educação Física, Universidade Federal de Juiz de Fora, Governador Valadares, Minas Gerais, Brazil (Dr Machado-Moreira); Fundação Jorge Duprat Figueiredo de Segurança e Medicina do Trabalho, São Paulo, São Paulo, Brazil (Dr Shibuya, Dr da Cunha, Dr Maia, Dr Roscani, Dr Santiago de Moraes Barros, Dr Bitencourt); Faculdade de Ciências Médicas da Santa Casa, São Paulo, São Paulo, Brazil (Dr Souza e Silva de Almeida); University of New Mexico, Albuquerque, New Mexico (Mr McKenna, Dr Amorim).
Objective:
To evaluate clinical parameters, markers of kidney function, and skeletal muscle damage in a group of sugarcane cutters during harvesting season.
Methods:
Seventeen volunteers were assessed for anthropometrics and cardiorespiratory fitness. Blood and urine samples were collected 48-hours after the last work session. Blood was analyzed for glucose, creatine kinase, cholesterol, and a complete hemogram. Urine and blood samples were also analyzed for markers related to kidney function.
Results:
Volunteers were young (26 ± 6 y), had low body fat (13 ± 5%), and good cardiorespiratory fitness (41 ± 6 mL/kg/min). Classical markers of kidney function (eGFR, creatinine, cystatin C) were within the normal range. However, ten volunteers presented elevated resting serum creatine kinase (221 ± 68 U/L).
Conclusion:
Manual sugarcane harvesting is associated with sustained skeletal muscle damage which may increase the risk for kidney injury in Brazilian sugarcane cutters.
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