Porcine CTMC, but not MMC, fluoresced strongly when stained with berberine sulphate or with a mixture of berberine sulphate and acridine orange. It suggested that porcine CTMC contained heparin proteoglycan. 当采用硫酸小蘖碱或硫酸小蘖碱与吖啶橙混合液染色时,猪CTMC可显示出强荧光而MMC则无反应,证明猪CTMC含肝素蛋白多糖。