Study on MicroRNA-related Mechanism of Acupuncture in Promoting Postoperative Gastrointestinal Motility of Patients with Colorectal Cancer / 广州中医药大学学报

Objective To study the microRNA-related mechanism of acupuncture in promoting postoperative gastrointestinal motility of patients with colorectal cancer. Methods Thirty cases of postoperative gastrointestinal motility disorder patients with colorectal cancer were randomly divided into acupuncture group and control group, 15 cases in each group. The control group received conventional symptomatic and supportive therapy, and acupuncture group received acupuncture at bilateral foot triple points of Zusanli,Sanyinjiao,Taichong daily on postoperative day 1-5 on the basis of conventional therapy for the control group. Time for the first anal exsufflation and time for the first defecation after operation were observed for the evaluation of clinical efficacy. Meanwhile, miR-19a expression level in serum and miR-222 expression level in the cancer tissue were detected by polymerase chain reaction (PCR). Results (1)The total effective rate of acupuncture group was 80.0％,and that of the control group was 46.7％,the difference being significant (P<0.05). (2)Time for the first anal exsufflation and time for the first defecation after operation in acupuncture group were shorter than those in the control group, the difference being significant (P < 0.05). (3) Serum miR-19a expression level in acupuncture group was decreased obviously on postoperative day 5 compared to day 1 (P < 0.05), and the decrease in acupuncture group was superior to that in the control group (P<0.05). (4)The expression of miR-222 in the cancer tissue was positively relevant to time for postoperative first anal exsufflation in both groups (P<0.05),and the expression level in ineffective patients was higher than that in effective patients (P < 0.05). Conclusion Acupuncture can regulate serum miR-19a expression level and promote the recovery in postoperative gastrointestinal motility of patients with colorectal cancer. The recovery of postoperative gastrointestinal motility in patients with colorectal cancer and the acupuncture effect are affected by miR-222 expression in the cancer tissue.

Protective effect of mulberry flavonoids on sciatic nerve in alloxan-induced diabetic rats

Mulberry leaves (Morus alba L.) are a traditional Chinese medicine for blood serum glucose reduction. This study evaluated the protective effects of mulberry flavonoids on sciatic nerve in alloxan-induced diabetic rats. In this study, 80 Sprague-Dawley rats were divided into five groups: A (control), B (diabetic treated with saline), C-D (diabetic treated with 0.3, 0.1 g/kg mulberry flavonoids once a day for 8 weeks) and E (diabetic treated with 0.3 mg/kg methycobal). The diabetic condition was induced by intraperitoneal injection of 200 mg/kg alloxan dissolved in saline. At the end of the experimental period, blood, and tissue samples were obtained for biochemical and histopathological investigation. Treatment with 0.3 g/kg mulberry flavonoids significantly inhibited the elevated serum glucose (P< 0.01). The increased myelin sheath area (P< 0.01), myelinated fiber cross-sectional area and extramedullary fiber number (P< 0.05) were also reduced in alloxan-induced rats treated with 0.3 g/kg mulberry flavonoids. 0.3 g/kg mulberry flavonoids also markedly decreased onion-bulb type myelin destruction and degenerative changes of mitochondria and Schwann cells. These findings demonstrate that mulberry flavonoids may improve the recovery of a severe peripheral nerve injury in alloxan-induced diabetic rats and is likely to be useful as a potential treatment on peripheral neuropathy (PN) in diabetic rats.

Folhas de amoreira (Morus alba L.) é um medicamento tradicional chinês para a redução da glicose no soro sanguíneo. Avaliaram-se, neste trabalho, os efeitos protetores dos flavonóides de amora no nervo ciático em ratos diabéticos aloxano-induzidos. Dividiram-se 80 ratos Sprague-Dawley em cinco grupos: A (controle), B (diabétidos tratados com solução salina), C-D (diabéticos tratados com 0,3, 0,1 g/kg) e E (diabéticos tratados com 0,3 mg de metilcobal).A diabetes foi induzida por injeção intraperitoneal de 200 mg/kg de aloxana dissolvida em solução salina. No final do período experimental, obtiveram-se amostras de sangue e de tecido para investigação bioquímica e histopatológica. O tratamento com 0,3 g/kg de flavonóides da amoreira inibiu, significativamente, a elevação de glicose no soro (p <0,01). O aumento da área da bainha de mielina (p <0,01), da área de fibra da seção transversal e do número de fibras mielinizadas extramedulares (p <0,05) foi também reduzido em ratos aloxânicos, tratados com 0,3 g/kg flavonóides de amora. Flavonóides da amoreira na dose de 0,3 g/kg também diminuiram, acentuadamente, a destruição da mielina do tipo bulbo de cebola e as alterações degenerativas das células mitocôndrias e das células de Schwann. Estes resultados demonstram que os flavonóides da amoreira podem melhorar a recuperação de uma lesão nervosa periférica grave em ratos com diabetes, induzida por aloxana, e parece ser útil como tratamento potencial para a neuropatia periférica (PN) em ratos diabéticos.

Efficacy controlled observation on acupuncture and western medicine for gastrointestinal dysmotility in liver cirrhosis / 中国针灸

<p><b>OBJECTIVE</b>To observe the therapeutic effect of acupuncture on gastrointestinal dysmotility in liver cirrhosis.</p><p><b>METHODS</b>Forty cases of gastrointestinal dysmotility in liver cirrhosis were randomized into an acupuncture group and a motilium group, 20 cases in each one. In the acupuncture group, on the basis of the conventional treatment, electroacupuncture was applied at Zusanli (ST 36), Sanyinjiao (SP 6) and Taichong (LR 3) for 30 min, once a day. In the motilium group, on the basis of the conventional treatment, motilium was taken orally 30 min before meals, 10 mg each time, three times a day. The treatment was required for 2 weeks in both groups. The changes in the digestive tract symptom score and liver function Child-Pugh score were observed and the efficacy was assessed.</p><p><b>RESULTS</b>The total effective rate of digestive tract symptoms was 85.0% (17/20) in the acupuncture group and 70.0% (14/20) in the motilium group. The score improvements in abdominal distention, belching and vomiting in the acupuncture group were superior to those in the motilium group (all P < 0.05). In the acupuncture group, the liver function Child-Pugh total score was 8.40 +/- 0.22 before treatment and reduced to 5.36 +/- 0.17 after treatment, in which the scores for ascites, serum bilirubin and albumin were all reduced (all P < 0.05) and the reducing range was increased in tendency with the improvements in digestive tract symptoms. In the motilium group, Child-Pugh score was not changed obviously as compared with that before treatment. CONCLUSION Acupuncture effectively alleviates digestive tract symptoms and improves liver function for the patients of liver cirrhosis, its efficacy on gastrointestinal dysmotility in liver cirrhosis is superior to motilium.</p>