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Browsing by Author "Guzel, Baris Can"

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    Neuroprotective Potential of a Novel Soluble Guanylate Cyclase Stimulator the Riociguat Alone or in a Combination Manner With Resveratrol in Experimental Stroke Model in Rats
    (Soc Chilena Anatomia, 2024) Şeker, Uğur; Kaya, Seval; Gunara, Sezer Onur; Atlas, Burak; Seker, Ugur; Guzel, Baris Can; Turan, Yahya; Department of Basic Medical Sciences / Temel Tıp Bilimleri Bölümü
    In this study we aimed to examine the effect of novel vasodilatory drug Riociguat co-administration along resveratrol to recover neurodegeneration in experimental stroke injury. For that purpose, thirty-five adult female rats were divided into groups five (Control, MCAO, MCAO + R, MCAO + BAY, MCAO + C) of seven animals in each. Animals in Control group did not expose to any application during the experiment and sacrificed at the end of the study. Rats in the rest groups exposed to middle cerebral artery occlusionO) (MCAinduced ischemic stroke. MCAO + R group received 30 mg/kg resveratrol, and MCAO + BAY group received 10 mg/kg Riociguat. The MCAO + C group received both drugs simultaneously. The drugs were administered just before the reperfusion, and the additional e doses weradministered 24h, and 48h hours of reperfusion. All animals in this study were sacrificed at the 72nd hour of experiment. Total brainsreceived were for analysis. Results of this experiment indicated that MCAO led to severe injury in cerebral structure. Bax, IL-6 and IL-1 ss levelstissue were upregulated, but anti-apoptotic Bcl-2 immunoexpression was suppressed (p<0.05). In resveratrol and Riociguat treated animals, the neurodegenerations and apoptosis and inflammation associated protein expressions were improved compared to MCAO group, mosbut the success was obtained in combined treatment exposed animals in MCAO + C group. This study indicated that the novel solubleate guany cyclase stimulator Riociguat is not only a potent neuroprotective drug in MCAO induced stroke, but also synergistic administratio of Riociguat along with resveratrol have potential to increase the neuroprotective effect of resveratrol in experimental cerebral strokeosed rats.
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    Regulation of Stat3 and Nf-Κb Signaling Pathways By Trans-anethole in Testicular Ischemia-Reperfusion Injury and Its Gonadoprotective Effect
    (Mre Press, 2024) Şeker, Uğur; Gokce, Yasin; Kati, Bulent; Yuksel, Meral; Guzel, Baris Can; Shokoohi, Majid; Department of Basic Medical Sciences / Temel Tıp Bilimleri Bölümü
    Testicular ischemia reperfusion (I/R) injury is a significant urological problem where clinical interventions may be inadequate, and the antioxidants might be potential co-treatment modalities. This study examined the gonadoprotective effect of trans-Anethole in testicular I/R injury. Twenty-eight male rats were divided into four groups. Rats in the I/R, I/R + t100, I/R + t200 groups underwent bilateral testicular I/R injury. The I/R + t100 and I/R + t200 groups received 100 or 200 mg/kg trans-Anethole at the 2nd hour of ischemia. Microscopic evaluations demonstrated that testicular I/R injury leads to severe testicular degeneration. Tissue oxidative stress, pro-apoptotic Bcl-2 associated X (Bax) and Caspase 3, pro-inflammatory Tumor necrosis factor-alpha (TNF-alpha), Interleukin-1 beta (IL-1 beta) and Interleukin 6 (IL-6) cytokines levels were significantly (p < 0.05) upregulated when compared to the Control group. Additionally, transcription factors Signal transducer and activator of transcription 3 (STAT3) and Nuclear factor kappa-light-chain-enhancer of activated B cells (NF-kappa B) levels increased significantly (p < 0.05) compared to the Control group. Tissue disrupted parameters in the I/R + t200 group were significantly different (p < 0.05) from the I/R group, contrasting with the slight improvement in the I/R + t100 group. The STAT3 and NF-kappa B expression levels in the I/R + t200 group were significantly suppressed (p < 0.05) compared to the I/R group. In conclusion, our study indicates that trans-Anethole could enhance gonadoprotective activity in testicular I/R injury, potentially involving transcription factors STAT3 and NF-kappa B. However, before the consumption of trans-Anethole-containing natural or manufactured goods, the potential benefits and side effects should be carefully evaluated.