September 6 (SeeNews) - Turkey's Is Girisim Sermayesi Yatirim Ortakligi [BIST:ISGSY], or Is Private Equity, said Friday it has decided to start talks to sell its 25.78% stake in Turkmed Diyaliz ve Bobrek Sagligi Kurumlari A.S. to another shareholder of the dialysis firm.