Evidence map›Paper›PMID 27005727›Full record

ArticleScientific reports2016

Human sperm rheotaxis: a passive physical process.

Zhuoran Zhang, Jun Liu, Jim Meriano, Changhai Ru, Shaorong Xie, Jun Luo, Yu Sun

Abstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
–field-weighted citation impact
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

43 citing papers in PubMed.

  1. Article
  2. Article
  3. Separation of sperm based on rheotaxis mechanism using a microfluidic device.Clinical and experimental reproductive medicine · 2026
    Article
  4. Physics of microbial taxis and behaviours in response to various physical stimuli.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2025
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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.

Zhuoran ZhangDepartment of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada.
Jun LiuDepartment of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada.
Jim MerianoLifeQuest Centre for Reproductive Medicine, Toronto, ON, Canada.
Changhai RuJiangsu Provincial Key Laboratory of Advanced Robotics &Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, China.
Shaorong XieDepartment of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada.
Jun LuoDepartment of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada.
Yu SunDepartment of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A long-standing question in natural reproduction is how mammalian sperm navigate inside female reproductive tract and finally reach the egg cell, or oocyte. Recently, fluid flow was proposed as a long-range guidance cue for sperm navigation. Coitus induces fluid flow from oviduct to uterus, and sperm align themselves against the flow direction and swim upstream, a phenomenon termed rheotaxis. Whether sperm rheotaxis is a passive process dominated by fluid mechanics, or sperm actively sense and adapt to fluid flow remains controversial. Here we report the first quantitative study of sperm flagellar motion during human sperm rheotaxis and provide direct evidence indicating that sperm rheotaxis is a passive process. Experimental results show that there is no significant difference in flagellar beating amplitude and asymmetry between rheotaxis-turning sperm and those sperm swimming freely in the absence of fluid flow. Additionally, fluorescence image tracking shows no Ca(2+) influx during sperm rheotaxis turning, further suggesting there is no active signal transduction during human sperm rheotaxis.

Indexed as

Biophysical PhenomenaCalciumCell TrackingFemaleHumansHydrodynamicsMaleModels, BiologicalOptical ImagingOvumSpermatozoaSperm MotilityCalcium

Identifiers

PMID27005727
PMCPMC4804285

What OpenQuestion holds

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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.