Süleyman Yalçin
Istanbul University
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Featured researches published by Süleyman Yalçin.
Journal of Gastroenterology | 1995
Sabahattin Kaymakoĝlu; Atilla Ökten; Yilmaz Çakaloĝlu; Gungor Boztas; Fatih Besisik; Cemil Taşçioĝlu; Süleyman Yalçin
We investigated the clinical and laboratory findings of hypogonadism and feminization in male patients with viral or alcoholic cirrhosis to determine whether chronic liver disease plays a primary role in the development of sexual dysfunction and hormonal changes. Two groups of male patients with liver cirrhosis (23 alcoholic, 33 viral) age-and Childs gradematched, and 20 age-matched healthy men, as a control group, were included in this study. Clinical signs of hypogonadism and feminization were examined in the cirrhotic patients. Follicle-stimulating hormone, luteinizing hormone, prolactin, testosterone, free testosterone, estradiol, androstenedione, dehydroepiandrosterone sulfate, and sex hormone-binding globulin were estimated in all groups. Seminal fluid was also analyzed in 7 alcoholic and 15 viral cirrhotics. Serum levels of estradiol, androstenedione, and sex hormone-binding globulin were significantly higher, and free testosterone and dehydroepiandrosterone sulfate levels were significantly lower in both groups of cirrhotics compared with the control group. Childs C patients in both groups of cirrhotics were found to have higher estradiol and lower free testosterone levels than childs A and B patients. Alcoholic and viral cirrhotics had markedly reduced sperm motility and density. The differences between alcoholic and viral cirrhotic patients in the clinical signs of hypogonadism, serum levels of sex steroids, and the results of seminal fluid analysis were not statistically significant. These findings suggest that liver cirrhosis per se, independent of etiology, causes hypogonadism and feminization, and that the degree of hypogonadism and feminization correlates well with the severity of liver failure.
Hpb Surgery | 1990
Ali Emre; Orhan Arıoğul; Aydin Alper; Attilâ Ökten; Ali Uras; Süleyman Yalçin
Two cases of portal hypertension due to hydatid cysts of the liver are reported. In one of the patients, symptoms were secondary to obstruction of inferior vena cava and hepatic outflow tract. The other patient was operated on with a diagnosis of extrahepatic presinusoidal portal hypertension caused by extrinsic compression of the liver by an hydatid cyst. Although hydatidosis is a benign disease, it can produce serious complications as in these reported cases. Therefore hydatidosis should be remembered amongst the causes of portal hypertension in countries where the disease is endemic.
Journal of Hepatology | 1992
Yilmaz Cakaloglu; Sabahattin Kaymakoglu; Atilla Ökten; Fatih Besisik; Selim Badur; Süleyman Yalçin
Gastroenterology | 1991
Yilmaz Cakaloglu; Atilla Ökten; Süleyman Yalçin
Turkiye Klinikleri Journal of Gastroenterohepatology | 1996
Fatih Beşişik; Kadir Demir; Atilla Ökten; Sabahattin Kaymakoğlu; Arif Acar; Yılmaz Çakaloğlu; Süleyman Yalçin
Turkiye Klinikleri Journal of Gastroenterohepatology | 1995
Atilla Ökten; Arif Acar; Yılmaz Çakaloğlu; Sabahattin Kaymakoğlu; Celal Ulaşoğlu; Güngör Boztaş; Zeynel Mungan; Sadakat Özdil; Fatih Beşişik; Süleyman Yalçin
Turkiye Klinikleri Journal of Gastroenterohepatology | 1994
Sabahattin Kaymakoğlu; Süleyman Yalçin; Nihal Salmayenli; Yılmaz Çakaloğlu; Ahmet Sivas; Atilla Ökten
Turkiye Klinikleri Journal of Gastroenterohepatology | 1994
Kürşad Türkdoğan; Yücel Ermiş; Ayşe Çefle; Yılmaz Çakaloğlu; Atilla Ökten; Süleyman Yalçin
Turkiye Klinikleri Journal of Gastroenterohepatology | 1994
Kürşad Türkdoğan; Yılmaz Çakaloğlu; Melih Aktan; Celal Ulaşoğlu; Dr.A.Faruk Ağan; Levent Erdem; Sabahattin Kaymakoğlu; Dr.Şakir Erdem; Süleyman Yalçin
Turkiye Klinikleri Journal of Gastroenterohepatology | 1994
Sabahattin Kaymakoğlu; Atilla Ökten; Yılmaz Çakaloğlu; Güngör Boztaş; Cemil Taşçioğlu; Fatih Beşişik; Süleyman Yalçin