Title
Effect of lysophosphatidylcholine on acrosome reaction in canine spermatozoa
Date Issued
01 July 2004
Access level
metadata only access
Resource Type
research article
Author(s)
Universidad de la Frontera
Abstract
Lysophospholipids desestabilize the sperm plasma membrane and promote its fusion with outer acrosomal membranes, by accelerating acrosome reaction (RA). Lysophosphatidylcholine (LC) has been used to induce the RA on capacitated sperms from different mammals. The aim of this work was to evaluate the effect of LC on RA in canine spermatozoa. Different concentrations of LC (0, 100, 200 and 300 μg/mL) were utilized during 15 minutes to induce RA in spermatozoa incubated during 0, 3 and 4 hours in capacitation medium (mCCM). Sperm viability and acrosomal status were determined using double fluorescence Pisum sativum aglutinin with fluorescein isothiocyanate (PSA-FITC) and Hoechst 33258 The analysis of varience (ANOVA) test was utilized for statistical analysis. The sperm viability was significantly reduced with 200 and 300 μg/mL of LC (P<0.05). The live spermatozoa with RA show no statistically significant differences (P>0.05) between groups with 0 and 100 μg/ml of LC incubated to 0 hour (21.0 ± 4.2% vs. 21.0 ± 6.6%), 3 hours (43.8 ± 4.7% vs. 49.1 ± 5.2%) and 4 hours (51.3 ± 14.8% vs. 57.6 ± 9.9%). Nevertheless the percentage of live spermatozoa with RA increased (P<0.05) with incubation at 3 and 4 hours. In conclusion, LC (100 μg/mL) shows no significant effect for inducing the acrosome reaction in canine spermatozoa incubated in mCCM mediun free of glucose.
Start page
311
End page
316
Volume
14
Issue
4
Language
Spanish
OCDE Knowledge area
Ciencia veterinaria
Subjects
Scopus EID
2-s2.0-4143098140
Source
Revista Cientifica de la Facultad de Ciencias Veterinarias de la Universidad del Zulia
ISSN of the container
07982259
Sources of information:
Directorio de Producción Científica
Scopus