Yazar "Yucel, Mehmet" seçeneğine göre listele

Listeleniyor 1 - 3 / 3
  • [ X ]
    Öğe
    Conventional monopolar transurethral resection of prostate in patients with large prostate (?80 grams)
    (Polish Urological Assoc, 2013) Yucel, Mehmet; Aras, Bekir; Yalcinkaya, Soner; Hatipoglu, Namik Kemal; Aras, Erol
    Introduction. Transurethral resection of the prostate (TURP) is still regarded as the gold standard for the treatment of lower urinary tract symptoms (LUTS) secondary to benign prostate obstruction in prostates between 30 and 80 mL. Endoscopic treatment of large prostate is not adequately discussed in literature. Our objective was to evaluate the efficacy and safety of TURP in large prostate glands (>= 80 ml) in patients with BPH. Material and methods. From May 2004 to September 2012, 62 patients with high volume of BPH (>= 80 ml) treated with TURP by single surgeon, were evaluated retrospectively. Perioperative and postoperative full blood count and serum electrolytes, complications, operative time, weight of resected prostate tissue, time for catheter removal, and hospitalization time were recorded. Conventional TURP was performed using a standard technique. Results. The mean PSA levels and prostate volumes were 8 +/- 5.38 ng/ml and 90.93 +/- 13.95 gm, respectively. The mean operating time was 55.96 +/- 8.04 minutes. The mean amount of tissue resected was 52.21 +/- 7.59 gm. Compare with baseline, there were significant improvements in International Prostate Symptom Score (IPSS), Quality of Life (QoL), maximum urinary flow rate (Q(max)), and postvoiding residual urine after surgery. There was no major bleeding complication. There was no TUR syndrome or intraoperative death. Requiring re-catheterization was detected for 3 (4.8%) patients. Transient urge incontinence was observed for 3 (4.8%) patients. Bulbar urethral stricture was developed for 2 (3.2%) patients. Conclusions. Morbidity of the TURP is decreased with the technological improvements. Conventional monopolar TURP can be effectively performed in large prostate (= 80 mL) with the experience.
  • [ X ]
    Öğe
    Effects of Sildenafil Citrate, Isoniazid, and Streptomycin on Testicular Tissue and Epididymal Semen Quality in Rats
    (Elsevier Science Inc, 2012) Alp, Harun; Cirit, Umut; Tas, Muzaffer; Rifaioglu, Murat Mehmet; Hatipoglu, Namik Kemal; Aytekin, Ismail; Yucel, Mehmet
    OBJECTIVE To evaluate the effects of isoniazid (INH) and streptomycin (STR) on epididymal semen quality and testicular tissue, and to evaluate the protective effect of sildenafil citrate (SC) on possible testicular toxicity induced by STR and INH in rats. METHODS Eighty adult male Sprague-Dawley rats were divided randomly into 8 groups including control, SC, INH, STR, STR + INH, SC + INH, SC + STR, and SC + INH + STR. After 45 days of treatment, the reproductive organ weights, epididymal semen quality, testicular histopathological findings, levels of serum nitric oxide, testosterone, follicle-stimulating hormone (FSH) and luteinizing hormone (LH) were investigated. RESULTS SC significantly increased the epididymal sperm motility and concentration, and the levels of FSH, LH, and testosterone. The STR group had a significantly higher percentage of sperm head defect than the control group (P < .05). The INH group had lower Johnsen Testicular Biopsy Score than the control group (P < .001). Although SC and INH treatment alone did not affect the epididymal semen quality negatively, the SC + INH group had significantly higher spermatozoon tail and total morphologic defect ratios than the control group (P < .05). CONCLUSION It has been concluded from this study that (1) SC has positive effects on spermatogenesis, sperm production, and semen quality; (2) STR affected the testicular biopsy score and spermatozoon head morphology negatively, but positively affected the other spermatologic traits; (3) INH did not effect the epididymal semen quality negatively, but decreased testicular biopsy score; and (4) SC can prevent the spermatozoon head defects induced by STR and can decrease the testicular toxicity induced by INH. UROLOGY 80: 953.e9-953.e14, 2012. (C) 2012 Elsevier Inc.
  • [ X ]
    Öğe
    Protective effects of the nuclear factor kappa B inhibitor pyrrolidine dithiocarbamate in bladder ischemia-reperfusion injury in rats
    (Springer, 2013) Yucel, Mehmet; Kucuk, Aysegul; Bayraktar, Aslihan Cavunt; Tosun, Murat; Yalcinkaya, Soner; Hatipoglu, Namik Kemal; Erkasap, Nilufer
    The aim of the present study was to evaluate the protective effects of the NF-(DB)-B-0 inhibition with pyrrolidine-dithiocarbamate (PDTC) in ischemia-reperfusion (I/R) injury in the rat bladder. Twenty-four Sprague-Dawley male rats were divided into three groups. Group I; (n = 8) control, group II; (n = 8) I/R group; group III (n = 8) I/R and PDTC treatment. Superoxide dismutase (SOD), catalase (CAT), and gluatathione-S-transferase (GST) enzymes was studied in bladder tissue. Lipid peroxidation (as TBARS) levels in tissue homogenate were measured with thiobarbituric acid reaction. All the slides were stained with NF-(DB)-B-0, p53 and HSP60 immunohistochemistry for detection genome destruction and tissue stress, respectively. Our results show that the mean TBARS levels were significantly higher in group II (p < 0.05). The TBARS levels were significantly decreased in group III compared with the group II (p < 0.05). CAT, SOD and GST activities were decreased in group II, but these enzymes levels were significantly increased in group III according to the group II (p < 0.05). Under microscopic evaluation NF-(DB)-B-0 expression increased significantly in group II compared to the group I (p < 0.05) and then decreased in group III (p < 0.05). HSP60 and p53 expression in group II was increased significantly compared with group I. Under microscopic evaluation we detected that HSP60 and p53 expression was increased significantly in group II compared with group I. In group III PDTC administration was decreased the HSP60 and p53 expression, this difference was statistically significant (p < 0.05). The results of the present study have demonstrated that NF-(DB)-B-0 inhibition with PDTC protects and provides beneficial effects on ischemia/reperfusion stress related bladder tissue destruction.