AIM: To evaluate effects of Pinaverium Bromide on different segments and layers of colonic smooth muscle in wrap restraint stress (WRS) rats and explore its possible therapeutic mechanism on different types of irritable bowel syndrome (IBS). METHODS: Adult SD rats were randomly divided into model group (wrap restraint stress group) and control group. Colonic smooth muscle strips were made from different segments and layers in two groups. The spontaneous contraction activities of colonic longitudinal/circular muscle (LM/CM) strips of rats were observed with organ bath system before and after addition of series concentrations of pinaverium. RESULTS: Pinaverium Bromide caused concentration-dependent inhibition of colonic smooth muscle, the inhibitory effect of pinaverium in model group was significantly stronger than that in control group(proximal colon: 28.54±4.82 vs 7.48±1.65,21.75±1.00 vs 12.56±3.15; distal colon: 15.71±5.27 vs 3.89±1.16, 20.16±3.16 vs 7.56±1.96 )(P<0.05). Compared with that of distal colon, inhibitory effect of pinaverium was significantly higher of proximal colon (P<0.05). For the inhibition of pinaverium, there was no significant difference between LM and CM strips in the same intestinal segments (P>0.05). CONCLUSION: Effects of Pinaverium Bromide on different colonic muscle layers and segments in WRS rats is probably related with its therapeutic mechanism on different types of IBS.

Objective To compare the clinical effectiveness of ozone (O_3) nucleus pulposus ablation only with that of 03 nucleus pulposus ablation combined with intervertebral facet joint injection of compound Betamethasome in treating lumbar disk herniation accompanied with intervertebral facet arthritis. Methods Eighty patients with lumbar disk herniation and intervertebral facet arthritis were equally and randomly divided into two groups. Under CT guidance, O_3 nucleus pulposus ablation was performed in patients of group A(n = 40), while O_3 nucleus pulposus ablation combined with intervertebral facet joint injection of compound Betamethasome (0.5 ～ 1 ml) was carried out in patients of group B (n = 40). Using double blind method the therapeutic effectiveness was evaluated before and 1 week, 3, 6-months after the procedure by an Oswestry Low Back Pain Disability Questionnaire. Results One week after the procedure the effective rate of group A and group B was 65% and 82.5% respectively. Three and six months after the treatment, the effective rate was 75% and 70% respectively for group A, while it was 90% and 92.5% respectively for group B. The difference between two groups was significant (P < 0.05). Conclusion lntradiscal injection of O_3 combined with intervertebral facet joint injection of compound Betamethasome is an effective and safe treatment for lumbar disk herniation accompanied with intervertebral facet arthritis. It is worth popularizing this technique in clinical practice.

Objective To explore the effects of different anesthesia methods on postoperative TLR4 expression and the level of serum S100β protein in children.Methods Totally 122 children with elective surgery were randomly divided into two groups.The control group was treated with ketamine intravenous anesthesia,while the observation group was treated with inhalation anesthesia with sevoflurane.Expression of TLR4,the level of serum S100β protein and the adverse reactions of anesthesia were observed.Results During the period of anesthesia,the incidence rates of physical and mental symptoms in the observation group were significantly lower than the control group (P ＜ 0.05).The levels of serun S100β protein at 2 h and 24 h after operation in the observation group were significantly lower than those in the control group (P ＜ 0.05).Compared with those before operation,there was no significant difference in the expression of TLR4 at the time of skin incision,2 h and 24 h after operation (P ＞ 0.05).The expressions of TLR4 at the time points of after skin incision,2 h and 24 h after operation in the control group were significantly lower than those before operation and the observation group (P ＜ 0.05).Conclusion The sevoflurane inhalation anesthesia can reduce the adverse reactions of anesthesia in children with surgery.

Objective To explore the effects of different anesthesia methods on postoperative TLR4 expression and the level of serum S100β protein in children.Methods Totally 122 children with elective surgery were randomly divided into two groups.The control group was treated with ketamine intravenous anesthesia,while the observation group was treated with inhalation anesthesia with sevoflurane.Expression of TLR4,the level of serum S100β protein and the adverse reactions of anesthesia were observed.Results During the period of anesthesia,the incidence rates of physical and mental symptoms in the observation group were significantly lower than the control group (P ＜ 0.05).The levels of serun S100β protein at 2 h and 24 h after operation in the observation group were significantly lower than those in the control group (P ＜ 0.05).Compared with those before operation,there was no significant difference in the expression of TLR4 at the time of skin incision,2 h and 24 h after operation (P ＞ 0.05).The expressions of TLR4 at the time points of after skin incision,2 h and 24 h after operation in the control group were significantly lower than those before operation and the observation group (P ＜ 0.05).Conclusion The sevoflurane inhalation anesthesia can reduce the adverse reactions of anesthesia in children with surgery.

Objective To compare the clinical efficacy between a direct aspiration first-pass technique(ADAPT)and stent-retriever thrombectomy(SRT)in the treatment for acute ischemic stroke(AIS)caused by intracranial atherosclerotic stenosis related large vessel occlusion(ICAS-LVO).Methods We retrospectively included patients with AIS caused by ICAS-LVO who received endovascular treatment in The First Affiliated Hospital of Xi'an Jiaotong University or The Second Affiliated Hospital of Shaanxi University of Chinese Medicine between January 2020 and January 2023.They were divided into ADAPT group and SRT group according to the first-selected device for thrombectomy.We compared the baseline data,test and examination results,operation process,clinical prognosis and follow-up data of the two groups.Results A total of 117 patients were recruited,including 48 patients in the ADAPT group and 69 patients in the SRT group.There was no significant difference in the baseline data between the two groups.The success rate of both the first-time thrombectomy(P=0.014)and the first-selected device of thrombectomy(P＜0.001)was significantly higher in the SRT group than in the ADAPT group.Meanwhile,the incidence of iatrogenic dissection(P＜0.001)and vasospasm(P=0.003)was significantly lower in the SRT group than in the ADAPT group.The proportion of patients for whom the device of thrombectomy was changed for remedial treatment in the ADAPT group was significantly higher than that in the SRT group(P＜0.001).However,the two groups did not differ significantly in the rate of successful vascular recanalization,incidence of symptomatic/asymptomatic intracranial hemorrhage or the rate of 90-day favorable prognosis.Conclusion For patients with AIS caused by ICAS-LVO of MCA,SRT has a higher rate of immediate successful vascular recanalization with a lower rate of secondary vascular injury compared with ADAPT,but the two techniques have similar efficacy on the 90-day prognosis.