Evidence map›Paper›PMID 26454687›Full record

ArticleAmerican journal of kidney diseases : the official journal of the National Kidney Foundation2016

Biomarkers of Kidney Injury Among Nicaraguan Sugarcane Workers.

Rebecca L Laws, Daniel R Brooks, Juan José Amador, Daniel E Weiner, James S Kaufman, Oriana Ramírez-Rubio, Alejandro Riefkohl, Madeleine K Scammell, Damaris López-Pilarte, José Marcel Sánchez and 2 more

Abstract read
In one paragraph

Article in American journal of kidney diseases : the official journal of the National Kidney Foundation, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed, 4 pooled it
8.8field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

73 citing papers in PubMed, 4 syntheses or guidelines pooled it, 132 citations in OpenAlex.

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  16. Longitudinal Renal Function Degradation Among Florida Agricultural Workers.Journal of occupational and environmental medicine · 2024
    Article
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13 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 5 institutions in 2 countries.

Rebecca L LawsDepartment of Environmental Health, Boston University School of Public Health, Boston, MA. Electronic address: rlaws@bu.edu.
Daniel R BrooksDepartment of Epidemiology, Boston University School of Public Health, Boston, MA.
Juan José AmadorDepartment of Epidemiology, Boston University School of Public Health, Boston, MA.
Daniel E WeinerDivision of Nephrology, Department of Medicine, Tufts Medical Center and Tufts University School of Medicine, Boston, MA.
James S KaufmanResearch Service, VA New York Harbor Healthcare System, New York, NY; Department of Medicine, New York University School of Medicine, New York, NY.
Oriana Ramírez-RubioDepartment of Epidemiology, Boston University School of Public Health, Boston, MA; Preventive Medicine and Public Health Department, Universidad Autónoma de Madrid, Madrid, Spain.
Alejandro RiefkohlDepartment of Epidemiology, Boston University School of Public Health, Boston, MA.
Madeleine K ScammellDepartment of Environmental Health, Boston University School of Public Health, Boston, MA.
Damaris López-PilarteDepartment of Epidemiology, Boston University School of Public Health, Boston, MA.
José Marcel SánchezDepartment of Epidemiology, Boston University School of Public Health, Boston, MA.
Chirag R ParikhSection of Nephrology, Department of Medicine, Yale University and VA Medical Center, New Haven, CT; Program of Applied Translational Research, Department of Medicine, Yale University, New Haven, CT.
Michael D McCleanDepartment of Environmental Health, Boston University School of Public Health, Boston, MA.
Boston University · USTufts University · USUniversidad Autónoma de Madrid · ESVA NY Harbor Healthcare System · USYale University · US

Funding

Environmental Epidemiology in Community SettingsT32ES014562 · NIEHS · BOSTON UNIVERSITY MEDICAL CAMPUS · PI Birgit Gunhild Claus Henn · 2006 to 2026
$7.7M
Mentoring Program for Translational and Patient Oriented Research in AKIK24DK090203 · NIDDK · YALE UNIVERSITY · PI PARIKH, CHIRAG R · 2012 to 2016
$896k
NIDDK NIH HHS K24 DK090203NIDDK NIH HHS K24DK090203NIEHS NIH HHS T32 ES014562
6 · The paper itself

Abstract

backgroundIn Central America, an epidemic of chronic kidney disease of unknown cause disproportionately affects young male agricultural workers. STUDY

designLongitudinal cohort study. SETTING &

participants284 sugarcane workers in 7 jobs were recruited from one company in northwestern Nicaragua. Blood and urine samples were collected before and near the end of the 6-month harvest season. PREDICTORS: Job category (cane cutter, seeder, seed cutter, agrichemical applicator, irrigator, driver, and factory worker); self-reported water and electrolyte solution intake. OUTCOMES & MEASUREMENTS: Changes in levels of urinary kidney injury biomarkers normalized to urine creatinine level, including neutrophil gelatinase-associated lipocalin (NGAL), interleukin 18 (IL-18), N-acetyl-β-d-glucosaminidase (NAG), and albumin; serum creatinine-based estimated glomerular filtration rate (eGFR).

resultsMean eGFR was 113 mL/min/1.73 m(2) and <5% of workers had albuminuria. Field workers had increases in NGAL and IL-18 levels that were 1.49 (95% CI, 1.06 to 2.09) and 1.61 (95% CI, 1.12 to 2.31) times as high, respectively, as in non-field workers. Cane cutters and irrigators had the greatest increases in NGAL levels during the harvest, whereas cane cutters and seeders had the greatest increases in IL-18 levels. Electrolyte solution consumption was associated with lower mean NGAL and NAG levels among cane cutters and lower mean IL-18 and NAG levels among seed cutters; however, there was no overall effect of hydration among all workers. On average, workers with the largest increases in NGAL and NAG levels during the harvest had declines in eGFRs of 4.6 (95% CI, 1.0 to 8.2) and 3.1 (95% CI, -0.6 to 6.7) mL/min/1.73 m(2), respectively. LIMITATIONS: Surrogate exposure measure, loss to follow-up.

conclusionsResults are consistent with the hypothesis that occupational heat stress and volume depletion may be associated with the development of kidney disease, and future studies should directly measure these occupational factors. The presence of urine tubular injury markers supports a tubulointerstitial disease that could occur with repeated tubular injury.

Indexed as

FarmersSaccharumAdultBiomarkersCohort StudiesDehydrationFemaleHeat-Shock ResponseHumansLongitudinal StudiesMaleMiddle AgedNicaraguaOccupational ExposureRenal Insufficiency, ChronicYoung AdultBiomarkersacute kidney injury (AKI)Chronic kidney disease (CKD)estimated glomerular filtration rate (eGFR)heat stressinterleukin 18 (IL-18)Mesoamerican Nephropathy (MeN)N-acetyl-β-d-glucosaminidase (NAG)neutrophil gelatinase-associated lipocalin (NGAL)occupational safetyrenal disease etiologytubulointerstitialurine tubular injury biomarkervolume depletion

Identifiers

PMID26454687
PMCPMC4801230
OpenAlexW2177863210

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.