Evidence map›Paper›PMID 21822737›Full record

ArticleIndian journal of gastroenterology : official journal of the Indian Society of Gastroenterology2011

Lack of association of primary iron overload and common HFE gene mutations with liver cirrhosis in adult Indian population.

Shalu Jain, Sarita Agarwal, Parag Tamhankar, Prashant Verma, Gourdas Choudhuri

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Article in Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 16% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. HFE genetic variability and risk of alcoholic liver disease: A meta-analysis.Journal of Huazhong University of Science and Technology. Medical sciences = Hua zhong ke ji da xue xue bao. Yi xue Ying De wen ban = Huazhong keji daxue xuebao. Yixue Yingdewen ban · 2016
    Pooled it
  2. Article
  3. Non-HFE iron overload as a surrogate marker of disease severity in patients of liver cirrhosis.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2016
    Article
  4. Article
  5. Article
  6. Article
  7. Primary iron overload and HFE gene mutations in North Indian adults.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2012
    Article
  8. Obscure pathogenesis of primary iron overload in Indians warrants more focused research.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2011
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Shalu JainDepartment of Medical Genetics, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India.
Sarita Agarwal
Parag Tamhankar
Prashant Verma
Gourdas Choudhuri
Sanjay Gandhi Post Graduate Institute of Medical Sciences · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo find out the association of common HFE mutations (viz., C282Y and H63D) with primary iron overload (PIL) in liver cirrhosis (CLD) patients of Indian origin.

methodsPolymerase chain reaction-restriction fragment length polymorphism method was used for screening C282Y and H63D mutation in 496 CLD patients (hepatitis B virus associated cirrhosis (HBVc) = 74, hepatitis C virus associated cirrhosis (HCV) = 50, alcoholic cirrhosis with hepatitis (ALcW)  =  38, alcoholic cirrhosis without hepatitis (ALc) = 92, cryptogenic cirrhosis (CC) = 242) and 502 healthy controls. Transferrin saturation of >45 or serum ferritin of >300 ng/mL (males)/>200 ng/mL (females) with normal total exogenous iron intake was suggestive of PIL. Histological liver iron grading was done by Perl's Prussian blue stain.

resultsOf 496 patients, 13 (2.6; 9 CC, 2 ALc, 1 HBVc, 1 AlcW) had PIL. However, only two (15.3) of 13 patients (1 CC and 1 HBVc) were positive for H63D heterozygous mutation. All the subjects were found to be C282Y wild type, except a single case of double heterozygous (C282Y/H63D) who however, did not have PIL. Overall frequency of H63D allele in patients and controls was not significantly different (5.95 and 4.58 respectively, p = 0.17). A highly significant H63D allele frequency (p  <  0.005) was observed in HBVc (10.82) and ALcW (11.84) groups but they were not associated with PIL.

conclusionThe frequency of PIL, and the HFE gene mutaion (C282Y) are both rare in Indian patients and explain why hemochromatosis is a rare cause of liver cirrhosis in India. A highly significant H63D allele frequency in HBV and alcohol-related cirrhosis suggest a possible predisposing role for liver fibrosis of this allele.

Indexed as

AdolescentAdultAgedFemaleHemochromatosis ProteinHepatitis B, ChronicHepatitis C, ChronicHistocompatibility Antigens Class IHumansIndiaIron OverloadLiver CirrhosisLiver Cirrhosis, AlcoholicMaleMembrane ProteinsMiddle AgedHemochromatosis ProteinHFE protein, humanHistocompatibility Antigens Class IMembrane Proteins

Identifiers

PMID21822737
OpenAlexW2067689730

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Registered trials

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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.