Evidence map›Paper›PMID 25466430›Full record

ArticleReproductive biology and endocrinology : RB&E2014

Sperm quality after density gradient centrifugation with three commercially available media: a controlled trial.

Helena Malvezzi, Rakesh Sharma, Ashok Agarwal, Adel M Abuzenadah, Muhammad Abu-Elmagd

2 registry-linked trialsOpen access · goldAbstract read
In one paragraph

Article in Reproductive biology and endocrinology : RB&E, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
4.4field-weighted citation impact, top 6% 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.

NCT02328534 completednot on this map

Novel Approach of Semen Preparation to Improve ICSI Outcome.

TypeobservationalSponsorAhmad Mustafa Mohamed MetwalleyRan2007 to 2014Enrolled890ConditionsInfertilityArmsBlastocyst Formation Rate, Blastocyst Rate, Pregnancy Rate
NCT02329704 completednot on this map

Evaluation Study Between Density Gradient and Swimming Down for Semen Processing

TypeobservationalSponsorAhmad Mustafa Mohamed MetwalleyRan2007 to 2007Enrolled100ConditionsInfertilityArmsDiff-Quik staining for morphology evaluation, Motility Evaluation for grade A and B, Concentration (mil/ml), 24 H half life, 48 H half life
3 · Its place in the literature

Who cites it

36 citing papers in PubMed, 89 citations in OpenAlex.

  1. Trial
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  4. Review
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  9. In vitro models of the male reproductive system: applications for developmental and reproductive toxicology.Toxicological sciences : an official journal of the Society of Toxicology · 2025
    Review
  10. Article
  11. Article
  12. Characterizing Extracellular Vesicles from Biological Fluids.Journal of visualized experiments : JoVE · 2025
    Article
  13. Review
  14. 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

5 authors at 2 institutions in 3 countries.

Helena Malvezzi
Rakesh Sharma
Ashok AgarwalCenter for Reproductive Medicine, Glickman Urological & Kidney Institute, Cleveland Clinic, Cleveland, OH, USA. agarwaa@ccf.org.
Adel M Abuzenadah
Muhammad Abu-Elmagd
Cleveland Clinic · USKing Abdulaziz University · SA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDensity gradient is the preferred technique for sperm processing for ART. However, no study has examined sperm quality using different processing media simultaneously and under identical conditions. Therefore, we evaluated semen quality following sperm preparation by three commonly used commercially available density gradient media in a well-designed controlled trial.

methodsWe obtained semen samples from 20 healthy volunteers. Percent motility, total motile sperm (TMS), % recovery and DNA damage were assessed before and after separation in three different sperm density gradient media-PureCeption, ISolate and SpermGrad-125.

resultsPercent motility was higher in the ISolate (81.4% ± 6.6%) and SpermGrad-125 samples (85.7% ± 8.0%) (P < 0.0001) than in the PureCeption samples (62.5% ± 13.2%) (P = 0.07). TMS was higher in the PureCeption(TM) and ISolate samples (14.2% ± 15.9% and 15.8% ± 18.2%) than in those prepared with SpermGrad-125 (10.6% ± 19.7%) (P < 0.0001). Percent recovery was significantly higher in the PureCeption(TM) and ISolate samples (45.3% and 48.9%) than in the SpermGrad-125(TM) samples (30.8%) (P < 0.01). DNA fragmentation was comparable across the three gradients (PureCeption = 8.8% ± 4.7%; ISolate = 7.2 ± 5.2% and SpermGrad-125 = 11.2% ± 7.4%).

conclusionsThree different density gradient processing media PureCeption, ISolate, and SpermGrad-125 were examined for their effects on sperm quality. Sperm processed by ISolate and Sperm Grad 125 had better motility and TMS after processing. The extent of DNA damage was comparable in all three gradients.

Indexed as

AdultCell SeparationCentrifugation, Density GradientDNA DamageFlow CytometryHumansMaleSemen AnalysisSpermatozoaSperm CountSperm MotilityYoung Adult

Identifiers

PMID25466430
PMCPMC4271431
OpenAlexW2106140205

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.