Beneficial Effects of Aminoguanidine on Skin Flap Survival in Diabetic Rats
Küçük Resim Yok
Tarih
2012
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Hindawi Publishing Corporation
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Random flaps in DM patients have poor reliability for wound coverage, and flap loss remains a complex challenge. The protective effects of aminoguanidine (AG) administration on the survival of dorsal random flaps and oxidative stress were studied in diabetic rats. Two months after the onset of DM, dorsal McFarlane flaps were raised. Forty rats were divided into four groups: (1) control, (2) AG, (3) DM, and (4) DM + AG groups. Flap viability, determined with the planimetricmethod, and free-radical measurements were investigated. In addition, HbA1c and blood glucose levels, body weight measurements, and histopathological examinations were evaluated. The mean flap necrotic areas (%) in Groups I to IV were 50.9 +/- 13.0, 32.9 +/- 12.5, 65.2 +/- 11.5, and 43.5 +/- 14.7, respectively. The malondialdehyde (MDA) and nitric oxide (NO) levels were higher in the DM group than in the nondiabetic group, while the reduced glutathione (GSH) levels and superoxide dismutase (SOD) activity were reduced as a result of flap injury. In the diabetic and nondiabetic groups, AG administration significantly reduced the MDA and NO levels and significantly increased GSH content and SOD enzyme activity. We concluded that AG plays an important role in preventing random pattern flap necrosis.
Açıklama
Anahtar Kelimeler
Nitric-Oxide Synthase, Superoxide-Dismutase, Oxidative Stress, Blood-Flow, Inhibition, Glycation, Complications, Angiogenesis, Dysfunction, Guanidines
Kaynak
Experimental Diabetes Research
WoS Q Değeri
Q3
Scopus Q Değeri
N/A
