Evidence map›Paper›PMID 21955839›Full record

ArticleReproductive biology and endocrinology : RB&E2011

Weak association of anti-sperm antibodies and strong association of familial cryptorchidism/infertility with HLA-DRB1 polymorphisms in prepubertal Ukrainian boys.

Maciej Kurpisz, Andriy Nakonechnyy, Wanda Niepieklo-Miniewska, Anna Havrylyuk, Marzena Kamieniczna, Beata Nowakowska, Valentyna Chopyak, Piotr Kusnierczyk

Open access · goldAbstract read
In one paragraph

Article in Reproductive biology and endocrinology : RB&E, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.3field-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

4 citing papers in PubMed, 16 citations in OpenAlex.

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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

8 authors at 5 institutions in 2 countries.

Maciej KurpiszInstitute of Human Genetics Polish Academy of Sciences, Department of Reproductive Biology and Stem Cells, Strzeszynska 32, 60 479 Poznan, Poland. kurpimac@man.poznan.pl
Andriy Nakonechnyy
Wanda Niepieklo-Miniewska
Anna Havrylyuk
Marzena Kamieniczna
Beata Nowakowska
Valentyna Chopyak
Piotr Kusnierczyk
Danylo Halytsky Lviv National Medical University · UAPolish Academy of Sciences · PLInstitute of Human Genetics · PLInstitute of Plant Genetics, Polish Academy of Sciences · PLJan Długosz University · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCryptorchidism is a frequent syndrome occurring in 1-2% of males within the first year of age. Autoimmune reactions, particularly directed to testicular elements and/or spermatozoa have been found to be often associated with cryptorchidism. Therefore we investigated in this study the frequency of HLA class II alleles in order to recognize possible genetic predisposition for antisperm antibodies development in prepubertal boys with diagnosed cryptorchidism in Caucasoid population.

methodsSixty prepubertal boys with cryptorchidism and sixty healthy boys were examined for anti-sperm antibodies by indirect immunobead test as well as for their HLA-DRB1 and -DQB1 alleles using DNA obtained from peripheral blood leukocytes. The typing of HLA-DRB1 and -DQB1 was performed by using PCR-SSP low resolution method.

resultsAllele frequencies of HLA-DRB1 and HLA-DQB1 did not differ between boys with cryptorchidism and control boys. However, weakly significant differences in DRB1*04 (p corrected=0.0475) and DQB1*06 (p corrected=0.0385) were seen between cryptorchid patients with and without AsA, but none of these two patient groups differed significantly in HLA class II frequencies from controls except for AsA-negatives and HLA-DQB1*06 (p corrected=0.0247). On the other hand, comparison of cryptorchid boys with familial cryptorchidism and/or infertility to control boys revealed highly significant (p corrected=0.0006) difference in HLA-DRB*11 frequency, whereas boys with sporadic cryptorchidism did not differ from control. A much weaker, but still significant difference in DRB*11 frequency was also observed between boys with bilateral cryptorchidism and controls (p corrected=0.037), whereas patients with unilateral cryptorchidism were not different from control in frequency of any HLA-DRB1 or -DQB1 allele tested.

conclusionsPredisposition to produce anti-sperm antibodies seems to be only weakly associated with HLA class II genes, although this question requires further study on much larger population sample. It is plausible that familial and sporadic cryptorchidism may present distinct genetic background. The same may, to lower extent, apply to bilateral and unilateral cryptorchidism.

Indexed as

Polymorphism, GeneticAllelesAutoantibodiesAutoantigensCase-Control StudiesChildCryptorchidismGene FrequencyGenetic Association StudiesGenetic Predisposition to DiseaseHLA-DQ beta-ChainsHLA-DRB1 ChainsHumansInfertility, MaleLeukocytesMaleAutoantibodiesAutoantigensHLA-DQB1 antigenHLA-DQ beta-ChainsHLA-DRB1*11 antigenHLA-DRB1 Chains

Identifiers

PMID21955839
PMCPMC3214188
OpenAlexW2132698122

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.