Evidence map›Paper›PMID 32039203›Full record

ArticleFrontiers in cell and developmental biology2019

Membrane Potential Determined by Flow Cytometry Predicts Fertilizing Ability of Human Sperm.

Lis C Puga Molina, Stephanie Gunderson, Joan Riley, Pascal Lybaert, Aluet Borrego-Alvarez, Emily S Jungheim, Celia M Santi

Open access · goldAbstract read
In one paragraph

Article in Frontiers in cell and developmental biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
6.8field-weighted citation impact, top 3% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

  1. Pooled it
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  12. NaInternational journal of molecular sciences · 2023
    Review
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  14. SLO3: A Conserved Regulator of Sperm Membrane Potential.International journal of molecular sciences · 2023
    Review
  15. The SLC9C2 Gene Product (NaInternational journal of molecular sciences · 2023
    Article
  16. A selective inhibitor of the sperm-specific potassium channel SLO3 impairs human sperm function.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  17. Article
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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

7 authors at 2 institutions in 2 countries.

Lis C Puga MolinaDepartment of Obstetrics & Gynecology, Washington University School of Medicine, St Louis, MO, United States.
Stephanie GundersonDepartment of Obstetrics & Gynecology, Washington University School of Medicine, St Louis, MO, United States.
Joan RileyDepartment of Obstetrics & Gynecology, Washington University School of Medicine, St Louis, MO, United States.
Pascal LybaertLaboratory of Experimental Hormonology, School of Medicine, Université Libre de Bruxelles, Brussels, Belgium.
Aluet Borrego-AlvarezDepartment of Obstetrics & Gynecology, Washington University School of Medicine, St Louis, MO, United States.
Emily S JungheimDepartment of Obstetrics & Gynecology, Washington University School of Medicine, St Louis, MO, United States.
Celia M SantiDepartment of Obstetrics & Gynecology, Washington University School of Medicine, St Louis, MO, United States.
Washington University in St. Louis · USUniversité Libre de Bruxelles · BE

Funding

SLO3 KO MOUSE: A TOOL TO REVEAL VOLTAGE-DEPENDENT PROCESSES IN SPERM FERTILITYR01HD069631 · NICHD · WASHINGTON UNIVERSITY · PI SANTI, CELIA M · 2011 to 2022
$3.3M
SLO3 K Channel: A Novel Target for ContraceptionR01HD095628 · NICHD · WASHINGTON UNIVERSITY · PI SANTI, CELIA M · 2017 to 2017
$278k
NICHD NIH HHS R01 HD069631NICHD NIH HHS R01 HD095628
6 · The paper itself

Abstract

Infertility affects 10 to 15% of couples worldwide, with a male factor contributing up to 50% of these cases. The primary tool for diagnosing male infertility is traditional semen analysis, which reveals sperm concentration, morphology, and motility. However, 25% of infertile men are diagnosed as normozoospermic, meaning that, in many cases, normal-appearing sperm fail to fertilize an egg. Thus, new information regarding the mechanisms by which sperm acquire fertilizing ability is needed to develop a clinically feasible test that can predict sperm function failure. An important feature of sperm fertilization capability in many species is plasma membrane hyperpolarization (membrane potential becoming more negative inside) in response to signals from the egg or female genital tract. In mice, this hyperpolarization is necessary for sperm to undergo the changes in motility (hyperactivation) and acrosomal exocytosis required to fertilize an egg. Human sperm also hyperpolarize during capacitation, but the physiological relevance of this event has not been determined. Here, we used flow cytometry combined with a voltage-sensitive fluorescent probe to measure absolute values of human sperm membrane potential. We found that hyperpolarization of human sperm plasma membrane correlated positively with fertilizing ability. Hyperpolarized human sperm had higher

Indexed as

capacitationflow cytometryhumanIVFmembrane potentialnormozoospermic infertilitysperm

Identifiers

PMID32039203
PMCPMC6985285
OpenAlexW3002698079

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.