Evidence map›Paper›PMID 29399748›Full record

ArticleIndian journal of gastroenterology : official journal of the Indian Society of Gastroenterology2018

Acute hepatitis E in India appears to be caused exclusively by genotype 1 hepatitis E virus.

Neha Gupta, Aditya N Sarangi, Sunil Dadhich, V K Dixit, Kamal Chetri, Amit Goel, Rakesh Aggarwal

Abstract read
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In one paragraph

Article in Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 12% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Guideline
  2. Review
  3. Epidemiology of Hepatitis E.Advances in experimental medicine and biology · 2023
    Article
  4. Transfusion-transmitted hepatitis E: What we know so far?World journal of gastroenterology · 2022
    Review
  5. Hepatitis E: Current Status in India.Clinical liver disease · 2021
    Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Prevalence of hepatitis E virus viremia and antibodies among healthy blood donors in India.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2018
    Article
  14. Review
  15. Review
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

7 authors at 2 institutions in 1 country.

Neha GuptaDepartment of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Raebareli Road, Lucknow, 226 014, India.
Aditya N SarangiDepartment of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Raebareli Road, Lucknow, 226 014, India.
Sunil DadhichDepartment of Gastroenterology, Dr. Sampurnanand Medical College, Residency Road, Shastri Nagar, Jodhpur, 342 003, India.
V K DixitDepartment of Gastroenterology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221 005, India.
Kamal ChetriInternational Hospital, G S Road, Guwahati, 781 005, India.
Amit GoelDepartment of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Raebareli Road, Lucknow, 226 014, India.
Rakesh AggarwalDepartment of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Raebareli Road, Lucknow, 226 014, India. aggarwal.ra@gmail.com.ORCID http://orcid.org/0000-0001-9689-494X
Sanjay Gandhi Post Graduate Institute of Medical Sciences · INInstitute of Medical Sciences · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHepatitis E is caused by infection with hepatitis E virus (HEV), which has four well-known genotypes. Genotypes 1 and 2 HEV have been reported from human cases in areas where the disease is highly endemic. By contrast, genotypes 3 and 4 HEV, which primarily infect several animal species worldwide, have been reported mainly from sporadic human cases in non-endemic areas such as Japan and high-income countries of Europe and North America. To determine whether genotype 3/4 HEV cause sporadic disease in India, a disease-endemic area, we determined HEV genotype in a group of patients with such disease.

methodsA part of the HEV open reading frame (ORF) 1 was amplified and sequenced from sera of 74 patients with sporadic acute viral hepatitis E from four cities in India. The sequences were compared with prototype sequences for various HEV genotypes and subgenotypes and analyzed using phylogenetic tools to determine the genotype of the isolates. For 12 specimens, a part of HEV ORF2 was also similarly analyzed.

resultsPartial ORF1 sequences of all the 74 isolates belonged to genotype 1 HEV, with 88.2% to 100% nucleotide identity with the prototype genotype 1 isolates. Partial ORF2 sequences for all the 12 isolates also belonged to genotype 1 HEV. On phylogenetic analysis, 71 isolates clustered with prototype genotype 1a HEV; the remaining three isolates were located between subgenotypes 1a and 1c but were closer to the former.

conclusionHuman sporadic acute hepatitis E in India is caused almost exclusively by genotype 1 HEV.

Indexed as

GenotypeAcute DiseaseHepatitis EHepatitis E virusHumansIndiaOpen Reading FramesViral ProteinsORF2 protein, Hepatitis E virusViral ProteinsAcute hepatitisGenetic epidemiologyGenotypeHepatitis E virus

Identifiers

PMID29399748
OpenAlexW2790414578

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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.