Evidence map›Paper›PMID 30197982›Full record

ArticleKidney international reports2018

Cobalamin C Deficiency Induces a Typical Histopathological Pattern of Renal Arteriolar and Glomerular Thrombotic Microangiopathy.

Mathilde Lemoine, Arnaud François, Steven Grangé, Marion Rabant, Valérie Châtelet, David Cassiman, Emilie Cornec-Le Gall, Damien Ambrosetti, Georges Deschênes, Jean-François Benoist and 1 more

Open access · goldAbstract read
In one paragraph

Article in Kidney international reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 pooled it
0.7field-weighted citation impact, top 33% 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

21 citing papers in PubMed, 2 syntheses or guidelines pooled it, 40 citations in OpenAlex.

  1. Pooled it
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  6. Post-transplant Thrombotic Microangiopathy.Journal of the American Society of Nephrology : JASN · 2025
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  18. Prominent renal complications associated withFrontiers in pediatrics · 2022
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 8 institutions in 2 countries.

Mathilde LemoineNephrology Department, Rouen University Hospital, Rouen, France.
Arnaud FrançoisPathology Department, Rouen University Hospital, Rouen, France.
Steven GrangéMedical Intensive Care Unit, Rouen University Hospital, Rouen, France.
Marion RabantPathology Department, Necker Hospital, Paris, France.
Valérie ChâteletNephrology Department, Caen University Hospital, Caen, France.
David CassimanMetabolic Center and Department of Gatroenterology-Hepatology, University Hospitals Leuven and KU Leuven, Belgium.
Emilie Cornec-Le GallNephrology Department, Brest University Hospital, Brest, France.
Damien AmbrosettiPathology Department, Nice University Hospital, Nice, France.
Georges DeschênesBiochemistry Department, Robert Debré Hospital, Paris, France.
Jean-François BenoistPediatric Nephrology Department, Robert Debré Hospital, Paris, France.
Dominique GuerrotNephrology Department, Rouen University Hospital, Rouen, France.
Université de Rouen Normandie · FRHôpital Robert-Debré · FRCentre Hospitalier Régional Universitaire de Brest · FRCentre Hospitalier Universitaire de Nice · FRHôpital Necker-Enfants Malades · FRInserm · FRKU Leuven · BEUniversité de Caen Normandie · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionCobalamin C (cblC) deficiency is the most common inborn error of vitamin B

methodsWe performed a multicenter retrospective study including 7 patients with cblC deficiency and 16 matched controls with cblC-independent TMA. The patients included were aged 6 to 26 years at the time of the first manifestations. All patients presented with acute renal failure, proteinuria, and hemolysis; 5 patients required dialysis.

resultsThe histological study revealed arteriolar and glomerular TMA in all patients. After comparison with the cblC-independent TMA control group, a vacuolated aspect of the glomerular basement membrane and the intensity of glomerular capillary wall IgM deposits were more present in cblC deficiency patients than in controls. Six patients were treated with hydroxycobalamin. All of them improved, with disappearance of hemolysis, and 3 of the 4 patients requiring renal replacement therapy were weaned off dialysis.

conclusionThis study provides a precise description of kidney pathology in cblC deficiency. Due to major therapeutic implications, we suggest that patients with renal TMA be screened for cblC deficiency regardless of age, particularly when the kidney biopsy provides evidence of long-lasting TMA, including a vacuolated aspect of the glomerular basement membrane and glomerular capillary wall IgM deposition.

Indexed as

cobalamin C deficiencygenetic kidney diseaserenal pathologythrombotic microangiopathy

Identifiers

PMID30197982
PMCPMC6127440
OpenAlexW2805037392

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

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.