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RISS 인기검색어
- 검색키워드
- 저자 : Osman Yuksel Yavuz (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
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Evaluation of prophylactic and therapeutic effects of ruscogenin on acute radiation proctitis
Erkan Yavuz,Onur Olgac Karagulle,Gulcin Ercan,Atilla Celik,Hakan Yigitbas,Busra Yaprak Bayrak,Rumeysa Tartar,Ramazan Kusaslan,Yuksel Altine,Osman Bilgin Gulcicek 대한외과학회 2018 Annals of Surgical Treatment and Research(ASRT) Vol.94 No.4
Purpose: Radiation proctitis (RP) is inflammation and damage to the rectum, manifested secondary to ionizing radiation utilized for treatment. In this study, we evaluated the anti-inflammatory therapeutical and protective effects of ruscogenin in a model of acute RP. Methods: Thirty-two Sprague-Dawley rats were divided into 4 groups (n = 8) as sham, control, treatment, and prophylaxis groups. Prophylaxis group and treatment group were dosed ruscogenin by oral gavage for 14 days pre- and postradiation. At the end of the 28th day, all subjects were sacrificed. Results: Histopathological analysis showed a significant increase in cryptitis abscess, cryptitis and reactive atypia, and depth of lymphocytic infiltration of the control group, compared to the other groups (P < 0.05), while treatment and prophylaxis groups showed significant decreases (P < 0.05). Immunohistochemical analysis indicated that immunoreactivity were significantly higher in control group (P < 0.05, P < 0.001, and P < 0.01, respectively), but vice versa for treatment and prophylaxis groups. There was not any significant difference for fibroblast growth factor 2 immunoreactivity. The epithelium of control rectums indicated an increase in TNF-α immunoreactivity while other groups had significant decrease (P < 0.01). Electron microscopical findings were parallel to light microscopy. Conclusion: In this study, ruscogenin was observed to be effective on prophylaxis or treatment of acute RP. Although there are various reports on the treatment of the rectum damaged by acute RP in the literature, this could be the first study since there is no research indicating the ultrastructural effect of ruscogenin.
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Bilateral Transverse (Bowdler) Fibular Spurs with Hypophosphatasia in an Adolescent Girl
Ismail Uras,Nurdan Uras,Ahmet Karadag,Osman Yuksel Yavuz,Hakan Atalar 대한영상의학회 2005 Korean Journal of Radiology Vol.6 No.1
Hypophosphatasia is a clinically heterogeneous inheritable disorder characterized by defective bone mineralization and the deficiency of serum and tissue liver/bone/kidney alkaline phosphatase activities. Due to the mineralization defect of the bones, various skeletal findings can be radiologically observed in hypophosphatasia. Bowing and Bowdler spurs of long bones are the characteristic findings. The Bowdler spurs reported on in the previous pertinent literature were observed in the perinatal aged patients and these lesions have rarely involved adolescents. We herein report on a 14-year-old girl with fibular Bowdler spurs.
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