effects of penicillamine, hypotaurine, and epinephrine on motility, hyperactivity, acrosome reaction of fresh ram sperm
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2017
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Abstract
Objective: To determine the effects of different concentrations of penicillamine, hypotaurine, and epinephrine (PHE) as well as incubation time on motility, hyperactivity and acrosome reaction (AR) of ram sperm in vitro.Methods: Freshly ejaculated spermatozoa from three ram were collected, pooled and subjected to swim up technique in modified sperm Tyrode's albumin lactate pyruvate medium supplemented with different concentrations of PHE (10, 20, 30, 40, 50, 75 and 100 mM/mL). Then best concentrations were compared and examined for motility, hyperactivity and AR.Results: A high concentrations of PHE (30, 40, 50, 75 and 100mM/mL) showed a significant increase in motility when compared to control immediately after dilution and exist for the first and second hour of incubation period. However, when longer incubation time were used, a significant (P<0.05) decrease in motility was achieved. Similar finding was observed in hyperactivity. Stained semen samples showed a maximum percentage of incomplete AR after 1 h incubation corresponding to 50 and 75 mM/mL of PHE; however, spermatozoa treated with 75 mM/mL had a higher tendency to undergo complete AR after further incubation up to 4 h. A dose dependent relationship was detected where the maximum value of total AR was shown in spermatozoa treated with 75 mM/mL PHE for 4 h.Conclusions: To obtain better motility, hyperactivity and AR, treatment of ram spermatozoa with 75 mM/mL PHE for 4 h before being used in insemination was considered the best concentration of PHE to be used in the process of in-vitro fertilization.
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| Reference Key |
el-shahat2017asianeffects
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|---|---|
| Authors | ;K H El-Shahat;M I Taysser;M R Badr;K A Zaki |
| Journal | Radiology |
| Year | 2017 |
| DOI |
10.4103/2305-0500.217344
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| URL | |
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