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Related Concept Videos

Flow Cytometry01:23

Flow Cytometry

The development of flow cytometry techniques began in 1934 with initial attempts by Andrew Moldavan, a bacteriologist who counted the cells in a flowing capillary system. Moldavan pumped cells through a capillary tube focused under a microscope for visualization. The invention of photometry allowed the measurement of differentially-stained cells, and Louis Kamentsky developed the first multiparameter flow cytometer in 1965 to identify and count the cancer cells in cervical tissue specimens.
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Flow Cytometric Analysis of Biomarkers for Detecting Human Sperm Functional Defects
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Sperm membrane functionality in the dog assessed by flow cytometry.

C Cheuquemán1, P Bravo, F Treulén

  • 1Faculty of Medicine, University of La Frontera, Temuco, Chile.

Reproduction in Domestic Animals = Zuchthygiene
|May 4, 2011
PubMed
Summary
This summary is machine-generated.

Flow cytometry objectively assesses canine sperm function, aiding in fertility prediction and infertility diagnosis. This method evaluates sperm viability, membrane integrity, and mitochondrial potential, providing crucial physiological data.

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Area of Science:

  • Veterinary Reproduction
  • Canine Semen Analysis
  • Flow Cytometry Applications

Background:

  • Objective assessment of sperm function is crucial for predicting fertilizing capacity and diagnosing infertility.
  • Canine spermatozoa require reliable functional assessment methods for reproductive health management.

Purpose of the Study:

  • To determine the membrane functional capacity of canine spermatozoa using flow cytometry.
  • To provide objective physiological data on canine sperm function.

Main Methods:

  • Utilized flow cytometry to analyze canine spermatozoa from pooled ejaculates (n=26).
  • Assessed sperm viability, plasma membrane integrity (Sybr-14/Pi), phosphatidylserine (PS) translocation (Annexin-V-FITC/PI), acrosome integrity (FITC-PSA/PI), and mitochondrial membrane potential (JC-1).

Main Results:

  • Mean values indicated high sperm viability (82.66%), intact plasma membrane (82.66%), intact acrosome (72.7%), and high mitochondrial membrane potential (80.9%).
  • Phosphatidylserine (PS) translocation was observed in 8.1% of viable sperm.
  • Sperm motility correlated with PS translocation (R=0.3901, p=0.0488), and acrosome integrity correlated negatively with PS translocation (R=-0.5816, p=0.0018).

Conclusions:

  • Flow cytometry provides objective physiological data on canine sperm functional capacity.
  • The study established baseline functional parameters for canine spermatozoa using advanced flow cytometry techniques.
  • Findings contribute to improved diagnostic tools for canine reproductive health and infertility.