Evidence map›Paper›PMID 23934009›Full record

ArticleHuman genetics2013

HLA-DPB1*04:01 allele is associated with non-obstructive azoospermia in Japanese patients.

Timothy A Jinam, Hirofumi Nakaoka, Kazuyoshi Hosomichi, Shigeki Mitsunaga, Hiroyuki Okada, Atsushi Tanaka, Kenichi Tanaka, Ituro Inoue

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Article in Human genetics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
3.9field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 15 citations in OpenAlex.

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4 · The record

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5 · Who and what money

Authors and funding

8 authors at 5 institutions in 2 countries.

Timothy A JinamDivision of Human Genetics, National Institute of Genetics, Yata 1111, Mishima, 411-8540, Japan, tjinam@nig.ac.jp.
Hirofumi Nakaoka
Kazuyoshi Hosomichi
Shigeki Mitsunaga
Hiroyuki Okada
Atsushi Tanaka
Kenichi Tanaka
Ituro Inoue
National Institute of Genetics · JPJōetsu General Hospital · JPMother Hospital · INNiigata University · JPTokai University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Azoospermia is defined by absence of sperm in the semen and can either be caused by obstruction of the seminal tract (obstructive azoospermia) or by defects in spermatogenesis (non-obstructive azoospermia, NOA). Previous studies reported that specific alleles and single nucleotide polymorphisms (SNPs) in the human leukocyte antigen (HLA) region were associated with NOA in East Asians. We attempt to expand upon previous findings by genotyping more HLA genes and to replicate SNP associations by focusing on Japanese NOA patients. HLA typing of six genes (HLA-A, -B, -C, -DRB1, -DQB1, and -DPB1) was done on 355 NOA patients using SSO-Luminex assay while genotyping of two previously reported SNPs (rs498422 and rs3129878) was done on 443 patients and 544 fertile males using TaqMan assay. Association between the HLA alleles and SNP with NOA was assessed with Chi squared and logistic regression tests. We found that HLA-DPB1*04:01 [corrected p value, P(c) 7.13 × 10(-6); odds ratio (OR) 2.52], DRB1*13:02 (P(c) 4.93 × 10(-4), OR 1.97), DQB1*06:04 (P(c) 8.94 × 10(-4), OR 1.91) and rs3129878 (p value 3.98 × 10(-4); OR 1.32) showed significant association with NOA, however, these loci are in linkage disequilibrium with each other. The conditional logistic regression tests showed that DPB1*04:01 is independently associated with NOA, confirming the involvement of the HLA region in the etiology of NOA in Japanese patients.

Indexed as

AllelesAsian PeopleAzoospermiaCase-Control StudiesFemaleGene FrequencyGenetic Association StudiesGenetic Predisposition to DiseaseHLA-DP beta-ChainsHumansLinkage DisequilibriumLogistic ModelsMalePolymorphism, Single NucleotideHLA-DPB1*04:01 antigenHLA-DP beta-Chains

Identifiers

PMID23934009
OpenAlexW2108316249

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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.