Patients in the control group were treated with 180µg of pegylated IFN (Pegasys-Roche) subcutaneously weekly for three months. In addition, they were given ribavirin according to their body weight (1200 mg for those over 75 kg and 1000 mg for those under 75 kg). The Biobran group was treated with Biobran, at a dose of 1g per day, allocated in packets, taken orally with meals for the three months duration of the study. Biobran is a denatured hemicellulose that is obtained by reacting rice bran hemicellulose with multiple carbohydrate hydrolyzing enzymes from Shiitake mushrooms. It is a polysaccharide that contains ß-1, 3-glucans, and activated hemicellulose. Biobran was kindly provided by Daiwa Pharmaceuticals Co. Ltd., Tokyo, Japan.