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Evaluation of Sperm Impairing Factor from Serratia marcescens as Male Contraceptive in Mouse Model.


ABSTRACT: The present study was carried out to assess the contraceptive efficacy of sperm agglutinating factor (SAF) isolated from Serratia marcescens, in male Balb/c mice. Mice were administered via an intratesticular route with different concentrations of SAF, viz., 10, 50, 100, 200, or 400?µg, in the right testis only which served as a test while the left side served as control except otherwise stated. Mice were sacrificed on day 3, 7, 14, 21, 30, 45, 60, and 90 after administration, and results in terms of change in body weight, seminal parameters, tissue somatic indices (TSI), hematological parameters, serum level of testosterone, lipid peroxidation, and histology were studied. The body weight and TSI remained unaffected in all the experimental groups. In case of seminal parameters, the right testis treated with 10??g, 50??g, 100??g, 200??g, or 400??g of SAF showed azoospermia up to day 7, 14, 21, 45, and 90, respectively. The hematological indices, aspartate aminotransferase (AST), and alanine aminotransferase (ALT) were found to be unaltered when the group receiving SAF (test) was compared with the groups receiving phosphate buffer saline (control) in the right testis; however, the treatment had a negative effect on the serum level of testosterone. It also affected the oxidative status of the right testis. Furthermore, histological studies revealed hypospermatogenesis and alterations in the seminiferous tubules which included intraepithelial vacuolation and exfoliation in the right side as compared to the left side. Thus, the results suggest that SAF (400?µg) causes suppression of spermatogenesis, without causing apparent toxic effects.

SUBMITTER: Chauhan A 

PROVIDER: S-EPMC6875308 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Evaluation of Sperm Impairing Factor from <i>Serratia marcescens</i> as Male Contraceptive in Mouse Model.

Chauhan Aditi A   Prabha Vijay V  

BioMed research international 20191030


The present study was carried out to assess the contraceptive efficacy of sperm agglutinating factor (SAF) isolated from <i>Serratia marcescens</i>, in male Balb/c mice. Mice were administered via an intratesticular route with different concentrations of SAF, <i>viz.</i>, 10, 50, 100, 200, or 400 <i>µ</i>g, in the right testis only which served as a test while the left side served as control except otherwise stated. Mice were sacrificed on day 3, 7, 14, 21, 30, 45, 60, and 90 after administratio  ...[more]

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