Abstract
To examine the clinical effects of Yisui Shengxue Granules () in the treatment of β-thalassemia and explore its mechanism on DNA methylation levels. A randomized placebo-controlled double-blinded trial was conducted. Forty patients with β-thalassemia were recruited and distributed randomly by envelope method into an experimental group and a control group, 20 patients in each group. The patients were given Yisui Shengxue Granules in the experimental group and placebo in the control group (12 g/bag three times a day) during a 3-month intervention. Before and after 1, 2, and 3 months of treatment, peripheral intravenous blood was sampled, and blood parameters such as hemoglobin (Hb), red blood cells (RBCs), reticulocytes (Ret), and fetal hemoglobin (HbF) were analyzed. Mononuclear cells from 5 patients, who showed an obvious treatment effect, were isolated by density gradient centrifugation. DNA methylation was analyzed using an Affymetrix USA GeneChip Human Promoter 1.0 Array and Input-promoter 1.0. Compared with pre-treatment, there was an obvious increase in Hb and RBCs counts after 1, 2, and 3 months in the experiment group (P<0.01 or P<0.05). Meanwhile, HbF increased from the 2nd to the 3rd month (P<0.05). In the control grou...Continue Reading
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