Objective To investigate the effect of gastrodin on rat vascular smooth muscle cell (VSMC) migration induced by platelet-derived growth factor-BB (PDGF-BB) and its possible mechanisms.Methods Enzyme digestion method wasused to obtain rataorticVSMCs and be purified bypassage.Immunofluorescence staining was used to identify VSMC marker proteins.A PDGF-BB induced cell migration model was established.Transwell chamber assay was used to evaluate the effect of gastrodin on PDGF-BB induced VSMC migration.Western blots were performed to detect the phosphohorylation levels of c-jun N-terminal kinase (JNK).Results The purity of primary cultured VSMC was more than 99％.The VSMC migrated number in the PDGF-BB group was 85.2 ± 3.486 per field.It was significantly more than 42.5 ± 1.927 per field in the control group (t =9.981,P＜0.001),and gastrodin was enable to make PDGF-BB induced the number of VSMC migration significantly reduce to 71.3 ± 1.783 per filed (t=3.550,P =0.002).Western blots analysis showed that gastrodin inhibited PDGF-BB induced JNK phosphorylation (0.190 ± 0.015 vs.0.190 ± 0.015; t =14.548,P =0.000).Conclusions Gastrodin inhibits PDGF-BB induced VSMC migration,its mechanisms may be associated with the inhibition of the JNK signaling pathway activation.

Objective To preliminarily discuss the effect of thrombectomy with the TREVO device in patients with acute ischemic stroke.Methods Six patients with acute ischemic stroke treated with TREVO device at the Department of Neurointervention,Beijing Fengtai You′anmen Hospital from April to June 2016 were analyzed retrospectively,including 2 patients with middle cerebral artery (MCA)occlusion (time window from 2. 7 to 5. 5 h),4 with basilar artery occlusion (time window from 4. 0 to 7. 0 h). The effect of thrombectomy was evaluated by the modified thrombolysis in cerebral infarction (mTICI ) scores. The National Institutes of Health Stroke Scale (NIHSS)scores were used to evaluate the neurological status of patients before and after treatment. The prognosis was evaluated by the modified Rankin scale. Results (1 )After 1 to 2 embolectomies,the occlusive arteries of 5 patients achieved recanalization (mTICI gradeⅡb-Ⅲ;posterior circulation in 4 cases,MCA in 1 case). (2)Compared with at admission,the NIHSS score in 1 of 2 patients with MCA occlusion was reduced by 8 points at discharge,and 1 was not any improvement;compared with at admission,the NIHSS scores in 3 of 4 patients with basilar artery occlusion were decreased by 8-26 points at discharge,and 1 was not any improvement;in 2 patients with MCA occlusion,the modified Rankin scale scores were 0 to 1 at 3 months after discharge (0 in 1 case,4 in 1 case);the Rankin scale scores in 4 patients with basilar artery occlusion at 3 months after discharge were 0 in 1 case,1 in 2 cases,and 5 in 1 case.Conclusion The preliminary experience of using TREVO device embolectomy for patients with acute ischemic stroke shows that it is more safe and effective.

Objective To measure the maximum movement of the hyoid bone and ventriculus laryngis during normal swallowing. Methods Forty volunteers were selected as subjects, and an X?ray simulator was used to collect the videos of normal swallowing. Video analysis software was used to capture continuous and quick screenshots of these videos, and the maximum movement of the hyoid bone and ventriculus laryngis was measured. The difference in movement was analyzed by one?way analysis of variance. Results The mean time for swallowing in 40 volunteers was 1.13±0.28 s. During the process of swallowing, the hyoid bone and ventriculus laryngis moved upward first, then outward, and finally returned to the resting position. The maximum movement of the hyoid bone forward and backward was 0.90±0.30 cm;the maximum vertical movement of the hyoid bone was 0.93±0.36 cm. The maximum movement of the ventriculus laryngis forward and backward was 0.69± 0. 25 cm;the maximum vertical movement of the ventriculus laryngis was 1.04±0.45 cm. Further studies showed the effect of age on the time for swallowing (P=0.03), with similar results for the male and female ( P=0.13) . Sex and age had no effects on movement of the hyoid bone and ventriculus laryngis (P=0.28?0.81 and 0.20?0.88). Conclusions During normal swallowing, the hyoid bone and the ventriculus laryngis move first upward and then forward. These movements should be considered during the development of radiotherapy plan for head and neck cancer.

Objective To comparative study the effect on colorectal cleansing of CT colonography with gulping down 10 mg bisacodyl before or 1 h after oral taking 2 liter polyethylene glycol .Methods Forty participants with informed consent were appor‐tioned to group A ,group B randomly ,20 cases in each group .On the day before CT colonography ,participants in group A oral took 20 mL of 40% W/V barium sulfate prior to 3 mealtime ,and 20 mL of 60% diatrizoate meglumine diluted in 250 mL of water after supper ,then gulped down 10 mg bisacodyl enteric‐coated tablets 1 hour before oral taking 2 liter polyethylene glycol electrolyte so‐lution .Participants in group B were the same as that in group A ,with the exception of gulping down 10 mg bisacodyl enteric‐coated tablets 1 hour after oral taking 2 liter polyethylene glycol electrolyte solution .Cleansing efficacy of stool and fluid ,and attenuation value of remainder fluid between the two groups were analyzed statistically .Results In group A ,score of cleansing efficacy of stool (1 .96 ± 0 .11) was lower than that in group B (2 .01 ± 0 .12) ,segments with good cleansing efficacy of stool (87/120 segments , 72 .50% ) was higher than that in group B (83/120 segments ,69 .17% ) ,the difference was not statistically significant (P>0 .05) .In group A ,score of cleansing efficacy of fluid (1 .50 ± 0 .06) was lower than that in group B (1 .53 ± 0 .06) ,segments with good cleansing efficacy of fluid(113/120 segments ,94 .17% ) was higher than that in group B (111/120 segments ,92 .50% ) ,the differ‐ence was not statistically significant (P>0 .05) .Attenuation value of remainder fluid [(729 ± 29)HU ] in group A was higher than that in group B[(653 ± 25)HU] ,the difference was statistically significant(P<0 .05) .Conclusion Gulping down 10 mg Bisacodyl before or after oral taking 2 liter polyethylene glycol has no effect on cleansing of stool and fluid ,with good cleansing efficacy .The former has better cleansing efficacy of fluid ,is beneficial to detecting polyps for CT colonography .

Objective To comprehend the present condition of sustaining within familial pulmonary rehabilitation for COPD patients,alongside exploring the factors that impact this continuity.Methods A convenience sampling method was used to select 392 COPD patients from outpatient clinics of 2 tertiary-level A hospitals and 1 community health service center in Huaihua in Hunan Province from December 2023 to February 2024 as survey respondents.Patients were surveyed using the general information questionnaire,the COPD Assessment Test,the Modified Medical Research Council Dyspnea Scale,the Exercise Benefits/Barriers Scale,and the Brief 2-Way Social Support Scale.Results We sent out 392 questionnaires and collected 362 valid ones,with an effective response rate of 92.47％.The percentage of COPD patients who never performed home pulmonary rehabilitation was 56.08％,and the maintenance time of health behaviors in home pulmonary rehabilitation was 17.40％for 1-3 months,7.18％for 4-6 months,4.70％for 7-12 months,and 14.64％for more than 1 year.The results of multiple linear regression analysis showed that exercise place,pulmonary rehabilitation health education,exercise habits before having COPD,perceived level of exercise behavior,and two-way social support were influential factors affecting the maintenance of health behaviors in pulmonary rehabilitation in the families of COPD patients,which explained 38.5％of the variability.Conclusion Patients with COPD have a low level of maintenance of health behaviors in home pulmonary rehabilitation,and health education on exercise rehabilitation for COPD patients and caregivers should be strengthened to enhance patients'level of exercise perception and ability to utilize social support.

Objective To establish two types of portal hypertension (PHT) models in mice by using bile duct ligation (BDL) method and carbon tetrachloride (CCl4) induction technique respectively. Methods A total of 24 C57BL/6 mice were randomly and equally divided into the following four groups with 6 mice in each group: group BDL, control group of BDL, group CCl4, and control group of CCI4. After the establishment of PHT, the main portal vein was punctured in all experimental mice to measure the portal vein pressure, and blood sampling was collected to test serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels. Using hematoxylin eosin (HE) and sirius red staining the liver tissues were pathologically examined. Immunohistochemical study of alpha smooth muscle actin (SMA) was adopted to evaluate the liver function, hepatic fibrosis and hepatic stellate cell activation status. Results Both modeling methods could make the portal vein pressure increased in experimental mice. The increasing of portal vein pressure in group CCl4 was more obvious. Compared with their corresponding control groups, the degree of liver damage, hepatic fibrosis and hepatic stellate cell activation in group BDL and group CCl4 were more serious. Conclusion Both BDL method and CCl4 induction technique can successfully establish the mouse model of PHT. All the portal venous pressure, the serum biochemical indices and the changes of liver pathology of the mouse model are well in line with the characteristics of PHT in human. (J Intervent Radiol, 2018, 27:242-246)

Objective:To observe the repairing effect of ozone water injection in the articular cavity for the treatment of knee osteoarthritis (KOA) on articular cartilage and to explore its repair mechanism.Methods:48 rats were randomly divided into fourgroups, the normal, model, normal saline and ozone water group, each group had 12 rats. The rats were injectied into the joint cavity with papain to establish a KOA model other than the normal group. After confirming the success of the model, the ozone water group and normal saline group was treated with ozone water and normal saline injection into the joint cavity once a week for a total of 3 treatments, the normal group and the model group are all raised routinely. Before and after the treatment, the ratknee joint behavioral score MG score was conducted; after the treatment articular cartilage surface gross score, hematoxylin and eosin (HE) staining and modified Mankin score of articular cartilage pathological changes was measured, and Western blot and Rt-PCR to measure the level of protein and mRNA expression of NF-κB p65, IKKβ and IκBα in articular cartilage tissues.Results:Compared with before the treatment, the rat knee joint behavioral score of the ozone water group was significantly lower (all P<0.05); after the treatment, the gross articular cartilage surface score and the modified Mankin score of the ozone water group were significantly reduced compared with the model and normal saline group (all P<0.05); Compared with the model and normal saline group, the protein and mRNA expression levels of NF-κB p65 and IKKβ in the ozone water group are significantly lower (all P<0.05), and the levels of IκBα are significantly higher (all P<0.05). Conclusion:Ozone water injection in the articular cavity can effectively repair damaged articular cartilage. The repair mechanism may be achieved by inhibiting the activation of NF-κB signaling pathway.

Objective:To investigate the effect and potential mechanism of exosomal miR-21 derived from Schwann cell(SC)in the repairment of sciatic nerve injury(SNI). Method:SC was infected with negative control lentivirus and lentivirus that expression of miR-21,and its exosome was collected and identified respectively.The SNI rat model was established by nerve stump anasto-mosis.After surgery,the rats were randomly divided into the model group(n=10),the SC-derived exosome group(n=10)and the SC-derived exosome group(n=10)that high expression of miR-21.The SC-derived exosomes group and SC-derived exosome group that high expression of miR-21 were treated with local injec-tion of exosome collected in vitro.After 3 weeks,the functional recovery was detected by behavioral experi-ment.The nerve regeneration was evaluated by immunofluorescence staining.RT-qPCR was used to detect the expression of miR-21 in serum exosome and miR-21 and SPRY2 in sciatic nerve.The targeting interaction be-tween miR-21 and SPRY2 was verified by dual-luciferase reporter gene experiment. Result:Compared with the model group,the functional recovery and regeneration of sciatic nerve were signifi-cantly improved in the other two groups.The expression of miR-21 was significantly increased,while the ex-pression of SPRY2 was significantly decreased.The improvement in the SC-derived exosome group with high expression of miR-21 were more significantly than those in the SC-derived exosome group. Conclusion:Exosomal miR-21 derived from SC can significantly promote the repair of sciatic nerve injury by targeting SPRY2.

ObjectiveTo explore the distribution of traditional Chinese medicine （TCM） syndromes of alopecia areata （AA）， and to provide reference for TCM clinical syndrome differentiation and classification of AA. MethodsAA patients who visited the specialized hairiness clinic of Beijing China-Japan Friendship Hospital were included. A questionnaire was developed including general information of the patients， history of hair loss （onset time， triggers and exacerbating factors， disease progression）， current symptoms （symptoms and signs）， medical history， personal history， family history， and hair microscopy examination results. The factor analysis and cluster analysis were used to determine the syndrome elements and to summarize the syndrome types. ResultsA total of 600 patients with AA were included， including 218 males （36.33%） and 382 females （63.67%）. Totally， 128 patients （21.33%） had a family history of hair loss， and 326 patients （54.33%） had a previous related underlying disease. The leading triggering and exacerbating factors of AA were tension and anxiety， accounting for 335 cases （55.83%） and 285 cases （47.50%）， respectively. The top 10 symptoms involved among patients were scalp oil， anxiety， irritability， dreaminess， fatigue， itching， tension， weakness and dandruff. The factor analysis showed that the factor rotation converged after 9 iterations， and finally obtained 12 common factors and 34 variables， with a cumulative contribution rate of 58.59%. In terms of disease location of AA， the main syndrome elements were liver， spleen and kidney， and the disease nature syndrome elements were mainly dampness-heat， qi stagnation， yin deficiency， qi deficiency， and blood deficiency. The clustering analysis of the 12 common factors showed that TCM syndromes could be summarized into four categories： internal retention of damp-heat， liver-kidney deficiency， qi and blood deficiency， and liver constraint and spleen deficiency. There were significant differences in the distribution of TCM syndromes in patients of different ages and genders （P＜0.001）. ConclusionThe main disease location of AA is in the liver， spleen， and kidney， with the liver being the key. The disease mechanism of AA is a deficiency-excess complex， initially manifested as excess and later becoming deficiency. The TCM syndromes mainly include four types which are internal retention of damp-heat， liver-kidney deficiency， qi and blood deficiency， and liver constraint and spleen deficiency.

Ulcerative colitis(UC)is a chronic inflammatory bowel disease caused by many factors including colonic inflammation and microbiota dysbiosis.Previous studies have indicated that celastrol(CSR)has strong anti-inflammatory and immune-inhibitory effects.Here,we investigated the effects of CSR on colonic inflammation and mucosal immunity in an experimental colitis model,and addressed the mechanism by which CSR exerts the protective effects.We characterized the ther-apeutic effects and the potential mechanism of CSR on treating UC using histological staining,intestinal permeability assay,cytokine assay,flow cytometry,fecal microbiota transplantation(FMT),16S rRNA sequencing,untargeted metabolomics,and cell differentiation.CSR administra-tion significantly ameliorated the dextran sodium sulfate(DSS)-induced colitis in mice,which was evidenced by the recovered body weight and colon length as well as the decreased disease activity index(DAI)score and intestinal permeability.Meanwhile,CSR down-regulated the production of pro-inflammatory cytokines and up-regulated the amount of anti-inflammatory mediators at both mRNA and protein levels,and improved the balances of Treg/Thl and Treg/Th1 7 to maintain the colonic immune homeostasis.Notably,all the therapeutic effects were exerted in a gut microbiota-dependent manner.Furthermore,CSR treatment increased the gut microbiota diversity and changed the compositions of the gut microbiota and metabolites,which is probably associated with the gut microbiota-mediated protective effects.In conclusion,this study provides the strong evidence that CSR may be a promising therapeutic drug for UC.