Vitamin E modulates apoptosis and c-jun N-terminal kinase activation in ovarian torsion-detorsion injury
Küçük Resim Yok
Tarih
2013
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Academic Press Inc Elsevier Science
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The aim of this study was to evaluate the role of vitamin E in follicular degeneration and to assess histopathological and biochemical changes following ischemia-reperfusion (IR) injury in rat ovaries. Twenty-eight Wistar albino rats were randomly divided into four groups: sham, 4 h torsion, 24 h detorsion, and a vitamin E group. Thirty minutes before detorsion, a single dose of 200 mg/kg vitamin E was administered intraperitoneally. The ovarian histology score was determined, serum levels of malondialdehyde (MDA) and myeloperoxidase (MPO) were measured. The apoptosis of granulosa cells and the phospho-c-jun N-terminal kinase (p-JNK) and phospho-p38 (p-p38) immunoreactivities of these cells were determined. MDA and MPO levels were significantly increased in the torsion and detorsion groups. Hemorrhage, edema, and congestion were also apparent in these groups. In addition, the apoptotic index and the immunoreactivity of p-JNK were highest in the detorsion group, which also showed marked follicular degeneration. However, p-p38 activity was not affected by torsion-detorsion (TD) induction. Vitamin E ameliorated TD-induced histological alterations. It also decreased serum levels of MDA and MPO, reduced the activity of p-JNK in the ovaries, and reduced numbers of apoptotic follicular cells. In conclusion, these data indicate that vitamin E attenuated ovarian follicular degeneration by inhibiting the immunoreactivity of p-JNK and reducing the apoptosis of granulosa cells. (c) 2013 Elsevier Inc. All rights reserved.
Açıklama
Anahtar Kelimeler
Torsion-Detorsion, Apoptosis, JNK MAPK, Vitamin E, Ovary, Rat, Ischemia-Reperfusion Injury, Reduces Tissue-Damage, Adnexal Torsion, Oxidative Stress, Alpha-Tocopherol, Granulosa-Cells, Protein-Kinase, Rat Ovary, Histopathologic Evaluation, Proinflammatory Cytokines
Kaynak
Experimental And Molecular Pathology
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
95
Sayı
2
