Evidence map›Paper›PMID 23850447›Full record

ArticleAmerican journal of kidney diseases : the official journal of the National Kidney Foundation2013

Clinical and pathological characterization of Mesoamerican nephropathy: a new kidney disease in Central America.

Julia Wijkström, Ricardo Leiva, Carl-Gustaf Elinder, Silvia Leiva, Zulma Trujillo, Luis Trujillo, Magnus Söderberg, Kjell Hultenby, Annika Wernerson

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In one paragraph

Article in American journal of kidney diseases : the official journal of the National Kidney Foundation, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed, 3 pooled it
11.5field-weighted citation impact, top 1% 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

95 citing papers in PubMed, 3 syntheses or guidelines pooled it, 205 citations in OpenAlex.

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  15. Heat-induced kidney disease: Understanding the impact.Journal of internal medicine · 2025
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35 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 2 countries.

Julia WijkströmDivision of Renal Medicine, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden.
Ricardo Leiva
Carl-Gustaf Elinder
Silvia Leiva
Zulma Trujillo
Luis Trujillo
Magnus Söderberg
Kjell Hultenby
Annika Wernerson
Hospital Nacional de Niños Bloom · SVKarolinska Institutet · SEAstraZeneca (Sweden) · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAn endemic of chronic kidney disease (CKD) of unknown cause among rural inhabitants in Central America has been identified. Young and otherwise healthy men working in plantations are frequently affected. The name Mesoamerican nephropathy (MeN) has been suggested. Clinically, MeN presents with low-grade proteinuria and progressive kidney failure. The renal pathology of this disease has not yet been described. STUDY

designCase series. SETTING &

participants8 male patients with CKD of unknown cause and clinically suspected MeN were recruited from a nephrology unit in El Salvador. All recruited patients had been working on plantations. Kidney biopsies, blood, and urine samples were collected. OUTCOMES & MEASUREMENTS: Renal morphology examined with light microscopy, immunofluorescence, and electron microscopy; clinical and biochemical characteristics.

resultsA similar pattern was seen in all 8 biopsy specimens, with extensive glomerulosclerosis (29%-78%) and signs of chronic glomerular ischemia in combination with tubular atrophy and interstitial fibrosis, but only mild vascular lesions. Electron microscopy indicates podocytic injury. Biochemical workup showed reduced estimated glomerular filtration rate (27-79 mL/min/1.73 m(2) with the CKD Epidemiology Collaboration [CKD-EPI] creatinine equation), low-grade albuminuria, and increased levels of tubular injury biomarkers. Hypokalemia was found in 6 of 8 patients. LIMITATIONS: Small number of patients from one country.

conclusionsThis study is the first report of the biochemical and morphologic findings in patients with MeN. Our findings indicate that MeN constitutes a previously unrecognized kidney disease with damage to both glomerular and tubulointerstitial compartments.

Indexed as

Rural PopulationTerminology as TopicAdultBiopsyCentral AmericaComorbidityHumansKidneyMaleMiddle AgedProteinuriaRenal InsufficiencyRenal Insufficiency, ChronicCentral AmericaChronic kidney diseaseEl SalvadorMesoamerican nephropathyoccupational and environmental healthrenal pathologysugarcane

Identifiers

PMID23850447
OpenAlexW2048779286

What OpenQuestion holds

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Registered trials

None linked

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.