Academic Journal

Determination of vaginal cytology and MMP-9 expression during early pregnancy in mice

التفاصيل البيبلوغرافية
العنوان: Determination of vaginal cytology and MMP-9 expression during early pregnancy in mice
المؤلفون: Wilasinee Inyawilert, Che-Ming Liu, Yu-Jing Liao, Jakree Jitjumnong, Chalothon Amporn, Pin-Chi Tang
المصدر: Veterinary and Animal Science, Vol 26, Iss , Pp 100406- (2024)
بيانات النشر: Elsevier, 2024.
سنة النشر: 2024
المجموعة: LCC:Veterinary medicine
مصطلحات موضوعية: Vaginal cytology, MMP-9, Pregnancy, Mice, Veterinary medicine, SF600-1100
الوصف: Precise pregnancy detection is critical for optimizing reproductive efficiency in animals. In mice, the conventional copulation plug method for pregnancy confirmation lacks reliability, particularly in inbred strains, with false-pregnancy rates exceeding 50 %. Here, to improve pregnancy detection efficiency in mice, we examined vaginal cell population changes using vaginal smear technique and analyzed MMP-9 expression in vaginal tract from day 0.5 to 6.5 of pregnancy. A total of forty-four female mice in the estrus stage were paired with sexually mature male mice for natural mating. The morning after mating was considered as embryonic day 0.5 (E0.5). Vaginal cytology was used to determine the vaginal cells of pregnant and non-pregnant mice from day 0.5 to 6.5. Furthermore, the protein and gene expression of MMP-9 were assessed through the utilization of immunohistochemistry and real-time PCR. Our findings reveal that pregnant mice display the higher number of leukocytes but the low number of nucleated/cornified epithelial cells in vagina compared to the non-pregnant counterparts. Furthermore, MMP-9 protein consistently presents in vaginal epithelial cells throughout the experimental period, with increased protein expression on day 4.5 of pregnancy followed by a decline on day 6.5 of pregnancy. This result is similar to MMP-9 gene expression, reaching the peak on day 5.5 of pregnancy. In conclusion, vaginal cytology proves effective for mouse pregnancy determination, while MMP-9 can serve as a potential biomarker for detecting pregnancy in mice.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2451-943X
Relation: http://www.sciencedirect.com/science/article/pii/S2451943X24000735; https://doaj.org/toc/2451-943X
DOI: 10.1016/j.vas.2024.100406
URL الوصول: https://doaj.org/article/dc257059ab4641e48eeaaa3e41dd6ca8
رقم الانضمام: edsdoj.257059ab4641e48eeaaa3e41dd6ca8
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:2451943X
DOI:10.1016/j.vas.2024.100406