Browsing by Author "Civi, Soner"

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    The Effect of Quetiapine on Treatment of Experimental Acute Spinal Cord Injury
    (TURKISH NEUROSURGICAL SOC, 2018-01-01) Aytar, Murat Hamit; Civi, Soner; Kaymaz, Memduh; Ergun, Ertan; Kaymaz, Fevziye Figen; Pasaoglu, Aydin
    AIM: It is well known that treatment modalities against secondary damage due to spinal cord injury (SCI) are very important. This phase has been researched in many experimental studies. Apoptosis is one of the major mechanisms of secondary damage on spinal cord. The present study was undertaken to determine if quetiapine, a 5-HT2 receptor blocker atypical antipsychotic agent can rescue neuronal cells from apoptosis in a SCI model. MATERIAL and METHODS: Thirty-two female Wistar rats were separated to 4 equal groups. Total laminectomy was performed at T5-7 level and spinal cord injury was produced by using the clip compression technique. Each rat from groups ``1 day{''} (D-I) and ``7 days{''} (D-II) was daily injected intraperitoneally with Quetiapine (10 mg/kg/day). No treatment was administered to the control groups ``1 day{''} (K-I) and ``7 days{''} (K-II). At the end of follow-up periods, all animals were sacrificed and spinal cords were removed. Apoptotic cells were evaluated by using immunohistochemical technique (TUNEL) in injured spinal cord specimens. RESULTS: There was a statistically significant difference while counting ApopTag positive cells, both at 1 day groups of K-I and D-I (p=0.00000008) and at 7 day groups of K-II and D-II (p=0.000005). Unlike the 1-day period, a statistically significant difference was found between grey and white matter ApopTag positive cells at the 7th day (p=0.0001). CONCLUSION: Quetiapine has a protective effect on secondary damage caused by SCI, while also can be used in post-traumatic stress disorder, depression and agitation as a versatile agent.
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    Usefulness of End-to-Side Bridging Anastomosis of Sural Nerve to Tibial Nerve : An Experimental Research
    (KOREAN NEUROSURGICAL SOC, 2017-01-01) Civi, Soner; Durdag, Emre; Aytar, Murat Hamit; Kardes, Ozgur; Kaymaz, Figen; Aykol, Sukru
    Objective : Repair of sensorial nerve defect is an important issue on peripheric nerve surgery. The aim of the present study was to determine the effects of sensory-motor nerve bridging on the denervated dermatomal area, in rats with sensory nerve defects, using a neural cell adhesion molecule (NCAM). Methods : We compared the efficacy of end-to-side (ETS) coaptation of the tibial nerve for sural nerve defect repair, in 32 Sprague-Dawley rats. Rats were assigned to 1 of 4 groups : group A was the sham operated group, group B rats had sural nerves sectioned and buried in neighboring muscles, group C experienced nerve sectioning and end-to-end (ETE) anastomosis, and group D had sural nerves sectioned and ETS anastomosis was performed using atibial nerve bridge. Neurological evaluation included the skin pinch test and histological evaluation was performed by assessing NCAM expression in nerve terminals. Results : Rats in the denervated group yielded negative results for the skin pinch tests, while animals in the surgical intervention groups (group C and D) demonstrated positive results. As predicted, there were no positively stained skin specimens in the denervated group (group B)