Abstract：
BACKGROUND:Chronic kidney disease is common among sugarcane workers in Central America. The main risk factor seems to be repeated high-intensity work in hot environments. Several cross-sectional studies have been performed but few longitudinal studies. OBJECTIVES:The aim of the study was to examine whether kidney function changes over a few months of work during the harvest period. METHODS:A group of male sugarcane cutters in Nicaragua (N=29, aged 17-38 years) was examined with renal biomarkers before and after shift on the first day at the start of harvest, on the sixth day during acclimatization, and then in mid-harvest 9 weeks later. A reference group (N=25, mainly office workers) was examined with the same biomarkers at start of harvest, and then at end of harvest 5 months later. RESULTS:The pre-shift renal function decreased significantly during 9 weeks of work in the cane cutters. Mean serum creatinine increased (20%), mean estimated glomerular filtration rate decreased (9%, 10mL/min), serum urea N (BUN) increased (41%), and mean urinary neutrophil gelatinase-associated lipocalin (NGAL) increased (four times). The cane cutters also developed cross-shift increases in these biomarkers, in particular serum creatinine and BUN, and in urinary uric acid. The longitudinal decrease in eGFR tended to be associated with the cross-shift increase in serum creatinine. CONCLUSIONS:There was a remarkable decrease of glomerular kidney function, after only 9 weeks of harvest. The cross-shift increase in serum creatinine may be caused by dehydration (pre-renal dysfunction), and when repeated on a daily basis this may cause permanently reduced GFR.
journal_name
Environ Resjournal_title
Environmental researchauthors
Wesseling C,Aragón A,González M,Weiss I,Glaser J,Bobadilla NA,Roncal-Jiménez C,Correa-Rotter R,Johnson RJ,Barregard Ldoi
10.1016/j.envres.2016.02.002subject
Has Abstractpub_date
2016-05-01 00:00:00pages
125-32eissn
0013-9351issn
1096-0953pii
S0013-9351(16)30043-3journal_volume
147pub_type
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