Evidence map›Paper›PMID 29454353›Full record

ReviewReproductive biology and endocrinology : RB&E2018

Genetics of the human Y chromosome and its association with male infertility.

Stacy Colaco, Deepak Modi

Open access · goldAbstract readReview
In one paragraph

Review in Reproductive biology and endocrinology : RB&E, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 139 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
139citing papers in PubMed, 5 pooled it
22.1field-weighted citation impact, top 1% 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

139 citing papers in PubMed, 5 syntheses or guidelines pooled it, 297 citations in OpenAlex.

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  18. Advances in Research on Models of Oligoasthenozoospermia.Reproductive sciences (Thousand Oaks, Calif.) · 2026
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79 more citing papers are in PubMed but not listed here.

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

2 authors at 1 institution in 1 country.

Stacy ColacoDepartment of Molecular and Cellular Biology, ICMR-National Institute for Research in Reproductive Health, JM Street, Parel, Mumbai, Maharashtra, 400012, India.
Deepak ModiDepartment of Molecular and Cellular Biology, ICMR-National Institute for Research in Reproductive Health, JM Street, Parel, Mumbai, Maharashtra, 400012, India. deepaknmodi@yahoo.com.ORCID http://orcid.org/0000-0002-4230-4219
National Institute for Research in Reproductive Health · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The human Y chromosome harbors genes that are responsible for testis development and also for initiation and maintenance of spermatogenesis in adulthood. The long arm of the Y chromosome (Yq) contains many ampliconic and palindromic sequences making it predisposed to self-recombination during spermatogenesis and hence susceptible to intra-chromosomal deletions. Such deletions lead to copy number variation in genes of the Y chromosome resulting in male infertility. Three common Yq deletions that recur in infertile males are termed as AZF (Azoospermia Factor) microdeletions viz. AZFa, AZFb and AZFc. As estimated from data of nearly 40,000 Y chromosomes, the global prevalence of Yq microdeletions is 7.5% in infertile males; however the European infertile men are less susceptible to Yq microdeletions, the highest prevalence is in Americans and East Asian infertile men. In addition, partial deletions of the AZFc locus have been associated with infertility but the effect seems to be ethnicity dependent. Analysis of > 17,000 Y chromosomes from fertile and infertile men has revealed an association of gr/gr deletion with male infertility in Caucasians and Mongolian men, while the b2/b3 deletion is associated with male infertility in African and Dravidian men. Clinically, the screening for Yq microdeletions would aid the clinician in determining the cause of male infertility and decide a rational management strategy for the patient. As these deletions are transmitted to 100% of male offspring born through assisted reproduction, testing of Yq deletions will allow the couples to make an informed choice regarding the perpetuation of male infertility in future generations. With the emerging data on association of Yq deletions with testicular cancers and neuropsychiatric conditions long term follow-up data is urgently needed for infertile men harboring Yq deletions. If found so, the information will change the current the perspective of androgenetics from infertility and might have broad implication in men health.

Indexed as

Chromosome DeletionChromosomes, Human, YHumansInfertility, MaleMaleSpermatogenesisAZFAZFcgr/gr deletionsInfertilityMicrodeletionsPrevalenceSpermatogenesisY chromosome

Identifiers

PMID29454353
PMCPMC5816366
OpenAlexW2797255218

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.