Browsing by Author "Bozkurt, Berkay"

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    Expression profile of prostaglandin enzymes in cystic endometrial hyperplasia in dogs: The results of a hypothesis in clinical trial
    (Kafkas Üniversitesi, 2023-01-30) Korlu, Yeşim; Yavaş, Özkan; Aktar, Ahmet; Bozkurt, Berkay; Özyiğit, Musa Özgür; Özalp, Gözde Rabia; Korlu, Yeşim; YAVAŞ, ÖZKAN; Aktar, Ahmet; ÖZYİĞİT, MUSA ÖZGÜR; ÖZALP, RABİA GÖZDE; Bursa Uludağ Üniversitesi/Veteriner Fakültesi/Jinekoloji ve Doğum Anabilim Dalı.; Bursa Uludağ Üniversitesi/Veteriner Fakültesi/Patoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Veteriner Fakültesi/Döreme ve Suni Tohumlama Anabilim Dalı.; 0000-0002-2975-2594; AAE-3607-2019; KHD-4075-2024; CZR-5232-2022; CBC-1744-2022; HPY-3936-2023
    The expressions of prostaglandin synthesis enzymes and estrogen, progesterone receptors in canine cystic endometrial hyperplasia (CEH) were reported in this manuscript. Uterine tissue samples were collected from bitches with CEH (n=5), CEH-P (Cystic endometrial hyperplasia-Pyometra) (n=5) and healthy-negative control group, CG (n=5). Immunohistochemistry was carried out for the estrogen (ER) and progesterone receptor (PR) detection. Shock-frozen samples were utilized in mRNA extraction and Real-Time PCR was performed. Gene expression of PTGS2/COX2, PTGES, PTGER4, PGFS, PTGFR and PGR were detected higher in the CEH group compared with CG. The PGFS and PTGFR (FP) mRNA expressions were significantly increased in CEH compared with other groups. Expression of progesterone receptor mRNA (PGR) was highest in CEH and statistically different from the CEH-P group (P<0.05). No PR immunostaining was observed. ER staining had been detected in endometrial glands, endometrial stoma and myometrium, however hyperplasic glands in propria mucosa had lower or no ER scores. Based on the results of this study, the high levels of prostaglandin enzymes and low ER scores in CEH could be a preliminary step for the next stages of severe differentiation of endometrium.
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    Gender determination by PCR assay for the sex-determining region Y(SRY) gene amplification in linnaeus’s two-toed sloth (Choloepus Didactylus)
    (Bursa Uludağ Üniversitesi, 2023-06-15) Bozkurt, Berkay; Vatansever, Ezgi; ARDIÇLI, SENA; Bursa Uludağ Üniversitesi/Veteriner Fakültesi/Genetik Anabilim Dalı; 0000-0003-2758-5945
    In Linnaeus’s two-toed sloths (Choloepus didactylus), there is no distinct sexual dimorphism. It is an obstacle for gender determination fromthe external genitalia, especially in newborns or young sloths. Hence, easy, rapid, and reliable genetics-based methods for gender identificationof the sloths are needed to continue captive breeding more successfully. In this study, a PCR-based technique that allows gender determinationof two-toed sloths by using a sex-determining region Y (SRY) gene marker was described. The hair samples from young (suspectgender) and adult sloths (known gender) were used in genetic analysis. Initially, genomic DNA was isolated from hair root samples using Roche high pure PCR template preparation kit. The SRY primers were specifically designed based on the NCBI and Ensembl databases, andthey were verified with the BLAST program concerning the two-toed sloth genome. PCR amplification with the SRY-specific primers wascarried out by a programmable thermal cycler device using FastStart High Fidelity PCR System, Roche dNTPack. The samples were then electrophoresedon 2% agarose gels and were visualized by a gel documentation and analysis system. A specific band in the electrophoresis patternis diagnostic for a male individual with a partial SRY region. Hence, the analysis demonstrated that the samples belonged to a male two-toedsloth. Two-toed sloth species are commonly preferred animals in zoos. Gender determination is inevitable for these animals in captivity tobe raised successfully and healthily. Molecular genetic techniques allow high efficiency in taxonomic evaluations and gender identification inspecies that do not display sexual dimorphism. The PCR assay described here may be helpful for a rapid genetic analysis that can be widelyused in gender determination for two-toed sloths.