img
Is the effect of melatonin on vascular endothelial growth factor receptor-2 associated with angiogenesis in the rat ovary?    
Yazarlar
Yasemin Behram Kandemir
Harran Üniversitesi, Türkiye
Esma Konuk
Dr. Öğr. Üyesi Ertan KATIRCI Dr. Öğr. Üyesi Ertan KATIRCI
Kırşehir Ahi Evran Üniversitesi, Türkiye
Feride Xxx
Mustafa Behram
Özet
OBJECTIVES: Vascular endothelial growth factor (VEGF) and its receptors play important roles in angiogenesis. Melatonin plays an important role in gonadal development; thus, its effect on the reproductive system is evident. We investigated the influence of melatonin on the expression of VEGF, vascular endothelial growth factor receptor-1 (VEGFR1) and vascular endothelial growth factor receptor-2 (VEGFR2), as well as on changes in oxidative stress markers and follicle numbers in rat ovaries.
METHODS: For this purpose, 45 Wistar rats were separated into the following groups: Group 1, control; Group 2, vehicle; and Group 3, melatonin. Rats in Group 3 were treated with melatonin at 50 mg/kg/day for 30 days. The effects of melatonin on the expression of VEGF, VEGFR1 and VEGFR2 were established by immunohistochemistry analysis. The effects of melatonin on antioxidant enzyme activities were demonstrated by spectrophotometric analysis.
RESULTS: Based on immunohistochemistry analysis, VEGFR2 was predominantly localized to theca cells in the ovary. Our data indicate that melatonin treatment can significantly increase VEGF and VEGFR1 expression in the ovary (p<0.05). Additionally, the number of degenerated follicles significantly decreased with melatonin treatment (p<0.05). Melatonin administration also led to significant increases in antioxidant enzyme levels in the ovary.
CONCLUSION: Melatonin treatment exerts protective effects on follicles against increased lipid peroxidation through modulating tissue antioxidant enzyme levels. These effects may be related to angiogenesis and antioxidant activities.
Anahtar Kelimeler
Melatonin | Ovary | VEGF | VEGFR1 | VEGFR2
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı CLINICS
Dergi ISSN 1807-5932
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q3
Makale Dili İngilizce
Basım Tarihi 01-2019
Cilt No 74
Doi Numarası 10.6061/clinics/2019/e658
Makale Linki https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6438131/