Computer-Assisted Sperm Motion Analysis of Bovine Sperm Treated with Insulin-Like Growth Factor I and II: Implications as Motility Regulators and Chemokinetic Factors
| Autor: | Donald M. Henricks, W. R. Boone, Sandra L. Gray, Brett R. Lackey |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Male
medicine.medical_specialty medicine.medical_treatment Beat (acoustics) Motility Semen In Vitro Techniques Computing Methodologies Insulin-like growth factor Endocrinology Insulin-Like Growth Factor II Internal medicine medicine Animals Insulin-Like Growth Factor I biology Growth factor Sperm Kinetics medicine.anatomical_structure Insulin-like growth factor 2 Sperm Motility biology.protein Gamete Cattle |
| Zdroj: | Archives of Andrology. 41:115-125 |
| ISSN: | 0148-5016 |
| Popis: | The effects of insulin-like growth factors (IGFs) I and II on motility of bovine sperm were examined using a computer-assisted sperm motion analyzer (CASA). The following kinematic parameters were examined: percentage of rapidly moving cells, straight-line velocity , curvilinear velocity, average path velocity, amplitude of lateral head displacement, and beat cross frequency. Sperm were treated with IGF-I (100 ng/mL) or IGF-II (250 ng/mL) and compared to sperm in modified Tyrodes' medium only (control) at 90, 180, and 360 min using CASA. Insulin-like growth factor I and II increased the percentage of rapidly moving cells, straight-line velocity, curvilinear velocity, average path velocity, amplitude of lateral head displacement, and beat cross frequency compared to the control treatment. These results indicate that IGFs may be involved in initiation and maintenance of bovine sperm motility. |
| Databáze: | OpenAIRE |
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