Research progress of TCM in treating radiation enteritis based on intestinal microecology / 国际中医中药杂志

Patients with radioactive enteritis generally have certain intestinal microecological imbalance. Traditional Chinese Medicine (TCM) has showed good advantage in regulating intestinal microbial flora. In clinical practice, patients are treated based on syndrome differentiation of heat toxin damaging collaterals, cold-heat mixed syndrome, spleen deficiency and dampness stagnation, spleen and kidney yang deficiency, yin deficiency and body fluid deficiency. The Baitouweng Decoction, Wumei Pill, Sijunzi Decoction are the common prescriptions. TCM can promote the balance of intestinal microecology and treat digestive diseases such as radioactive enteritis, by improving the abundance of intestinal flora, inhibiting the level of inflammatory cytokines, and playing the role of probiotics and immune regulation.

β-elemene combined with pemetrexed inhibits the proliferation and increases the apoptosis of HeLa cells / 医学研究生学报

Objective Pemetrexed and β-elemene can inhibit the growth of tumor cells .This study was to investigate the effect of pemetrexed combined with β-elemene on the proliferation and apoptosis of cervical cancer HeLa cells. Methods Cervical cancer HeLa cells were treated with pemetrexed at the concentrations of 38, 76, 152, 228, and 304μg/mL, and at 24 and 48 hours of treatment subjected to MTT for detection of their proliferation .The experiment included four groups , with the cells treated with β-elemene ( 125μg/mL) , pemetrexed ( 76 μg/mL ) , β-elemene ( 125 μg/mL ) +pemetrexed (76μg/mL), and nothing (blank control) for 24 hours, followed by determination of their proliferation and apoptosis by MTT and flow cytometry, respectively. Results Pemetrexed at 38, 76, 152 and 228μg/mL inhibited the proliferation of the HeLa cells in a concentration-dependent manner, with the inhibition rates of (7.24 ±3.78), (7.94 ±4.37), (11.10 ±2.86) and (15.88 ± 3.38)%at 24 hours, and (16.69 ±0.95), (22.54 ±1.53), (24.48 ±0.92) and (25.54 ±3.61)%at 48 hours, both with statis-tically significant differences between any two groups (P<0.05).Significant differences were also found in the proliferation rate of the same concentration of pemetrexed at the two time points (P<0.05).The combination of pemetrexed and β-elemene showed an inhibi-tion rate of (49.95 ±5.76)%at 24 hours, remarkably higher than (24.36 ±5.59)%in theβ-elemene group and (10.69 ±1.37)%in the pemetrexed group (P<0.01). Conclusion Pemetrexed combined with β-elemene can significantly inhibit the proliferation and synergistically accelerate the apoptosis of HeLa cells .