Changes in the reproductive endocrine function in rat following intraovary microinjection of inhba overexpression lentivirus vectors.

OBJECTIVE:To investigate the reproductive endocrine changes after inhba overexpression into rat ovary. METHOD:Thirty Sprague-Dawley rats were randomly assigned to three groups. Inhba overexpression lentivirus vectors (LV-eGFP-inhba) were microinjected into rat ovary (INH group); Control animals received the same amount lentivirus vector empty (CON group) or LV-eGFP (GFP group). Antral follicle amount and diameter were counted and serum level of activin A, E2, P, FSH, and LH and the expression of ER-α, ER-β, PR, FSHR, and LHR were measured. RESULTS:There was no significant difference among three groups in antral follicle amount; antral follicle diameter was increased in INH group rats compared with the other group rats. Serum levels of activin A, E2, P, and FSH were increased and LH was decreased in INH group rats compared with the other group rats. The mRNA and protein expression of ER-α, ER-β, FSHR was higher in INH group rats than that in the other group rats. There was no significant difference in mRNA and protein expression of PR among the three group rats, LHR expression was decreased in INH group rats compared with the other two group rats. CONCLUSION:inhba overexpression in rat ovary in vivo may change reproductive endocrine function.

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