Object To study the glycosides from Swertia erythrosticta Maxim Methods The glycosides were isolated on silica gel column and purified by Sephadex LH20, their structures were identified by spectral data and chemical properties Results Seven compounds were obtained from aqueous extract and identified as swertianolin (Ⅰ), norswertianolin (Ⅱ), norswertiaglucoside (Ⅲ), isoorientin (Ⅳ), loganic acid (Ⅴ), gentiopicroside (Ⅵ) and ? gentiobiose (Ⅶ) Conclusion Compounds Ⅲ, Ⅳ, Ⅴ, and Ⅶ were first obtained from this plant

Objective:To screen the time points of high survival rate and efferocytosis dysfunction of rat alveolar macrophages stimulated by cigarette smoke extract (CSE), establish an in vitro model of alveolar macrophage efferocytosis function, and study chronic respiratory diseases with chronic inflammatory reaction as the main pathological changes. Methods:① Time point screening experiment: rat alveolar macrophages (NR8383 cells) were cultured in vitro, and the cells in logarithmic growth phase were divided into blank control group (100 μL complete medium) and 5% CSE group (90 μL complete medium + 10 μL 100% CSE). Alma blue method was used to detect the effect of 5% CSE on the activity of NR8383 cells at 6, 12, 24 and 48 hours. ② Apoptosis induction experiment: rat type Ⅱ alveolar epithelial cells (RLE-6TN cells) were cultured in vitro as phagocytic target cells of NR8383 cells, and the cells in logarithmic growth phase were divided into blank control group and 10, 30 and 60 minutes groups after ultraviolet exposure (apoptosis was induced by 30 000 μJ/cm 2 ultraviolet irradiation for 15 minutes). Flow cytometry was used to detect the apoptosis rate of RLE-6TN cells cultured for 10, 30 and 60 minutes after ultraviolet exposure. ③ Cell efferocytosis experiment: NR8383 cells in logarithmic phase were divided into blank control group and 5% CSE group. Two hours before NR8383 cells were stimulated by CSE for 6, 12 and 24 hours, RLE-6TN cells were exposed to ultraviolet to induce apoptosis, and the RLE-6TN cell suspension was added to NR8383 cells (the ratio of RLE-6TN cells to NR8383 cells was 5∶1). Flow cytometry was used to detect the efferocytosis rate of NR8383 cells to RLE-6TN cells at different time points treated with 5% CSE. Results:① Compared with the blank control group, the activity of NR8383 cells significantly decreased after treatment with 5% CSE for 48 hours [cell reduction rate: (68.5±4.1)% vs. (73.6±2.3)%, P < 0.05]. However, there were no significant differences when the activities of NR8383 cells treated with 5% CSE for 6, 12 and 24 hours were compared with the blank control group, so these three time points were selected for the subsequent establishment of alveolar macrophage cell efferocytosis dysfunction in vitro model experiment. ② Compared with the blank control group, the apoptosis rate of RLE-6TN cells significantly increased at 10, 30 and 60 minutes after ultraviolet exposure [(66.87±8.63)%, (85.51±2.39)%, (96.13±2.74)% vs. (9.13±3.17)%, all P < 0.01] in a time-dependent manner. Considering that it taked about 50 minutes for RLE-6TN cells to be labeled with PKH26 membrane labeling probe, 10 minutes after ultraviolet exposure was selected to label RLE-6TN cells. ③ Compared with the blank control group, the efferocytosis function of NR8383 cells was significantly decreased after treatment with 5% CSE for 12 hours [cell efferocytosis rate: (33.64±1.30)% vs. (44.02±2.71)%, P < 0.01], but there was no significant effect on the efferocytosis function of NR8383 cells at 6 hours and 24 hours. Conclusions:CSE can induce alveolar macrophage cell efferocytosis dysfunction. Based on the test results of the effect of 5% CSE on NR8383 cell activity and cell efferocytosis function, 12 hours with high survival rate and weak efferocytosis effect of NR8383 cells can be selected as the in vitro model condition of alveolar macrophage cell efferocytosis dysfunction.

Objective:To investigate the effect of right stellate ganglion block (RSGB)-serratus anterior plane block (SAPB) combined with general anesthesia in thoracoscopic radical resection of lung cancer.Methods:A total of 90 patients who planned to undergo thoracoscopic radical resection of lung cancer in Xiangya Changde Hospital from March 2020 to September 2021 were prospectively selected and divided into 3 groups by random number table method: general anesthesia group (G group), (SAPB)+ general anesthesia group (SG group), RSGB+ SAPB+ general anesthesia group (RSG group), 30 cases in each group. The SG group received SAPB on the operative side before general anesthesia, and the RSG group received RSGB+ SAPB on the operative side before general anesthesia. After the blocking effect was determined, all patients were given general anesthesia in the same scheme according to their weight, and patients were given patient-controlled intravenous analgesia (PCIA) after surgery. The mean arterial pressure (MAP) and heart rate (HR) were recorded before anesthesia (T 0), before intubation (T 1), 1 min after intubation (T 2), 5 min after intubation (T 3), at extubation (T 4) and 5 min after extubation (T 5). The intraoperative dosage of remifentanil, incidence of nausea and vomiting (PONV) within 24 hours after surgery, number of additional PCIA within 24 hours, the Visual Analogue Scale (VAS) of static and dynamic pain, the Bruggrmann Comfort Scale (BCS) and Richard Campbell Sleep Questionnaire (RSCQ) 24 hours after surgery were recorded. Results:Compared with T 0, the MAP and HR in 3 groups were increased 1 min after intubation (T 2) and at extubation (T 4), but the increases in RSG group were significantly less than those in G and SG groups (all P<0.05). The remifentanil dosage, PONV incidence and PCIA supplemental times in SG and RSG groups were less than those in G group, and the BCS score and RSCQ score were higher than those in G group (all P<0.05); the BCS score and RSCQ score in RSG group were higher than those in SG group (all P<0.05). Conclusions:RSGB+ SAPB combined with general anesthesia in thoracoscopic radical resection of lung cancer has little circulation fluctuation, good postoperative analgesia effect, less adverse reactions and high comfort level.

Objective To explore the mechanism of phlegm-resolving and stasis- removing herbals on NAFLD by observing expressions of PGC1α mRNA and insulin resistance. Methods A total of 60 male SD rats were randomly divided into the normal group, model group, positive medication control group, high-dose, middle-dose and low-dose group. The rats were fed with high-fat forage for 8 weeks. The positive medication control group were gavaged with Dongbao-Gantai liquid (0.9 g/kg/day), the high-dose, middle-dose and low-dose group were gavaged with Xiaotan-Huayu liquid (43.34、32.50、21.67 g/kg/day), and normal group, model group were gavaged with equal volume of distilled water. The drugs were given by 1 ml/100 g and last for 8 weeks. The levels of TC, TG, FFA, ALT, AST, FBG, FINS, and HOMA-IR in serum, and levels of TC, TG, and PGC-1α mRNA and pathological morphological changes in hepatic tissue were observed after 8 weeks. Results The levels of TG (0.55 ± 0.10 mmol/L, 0.58 ± 0.09 mmol/L, 0.67 ± 0.11 mmol/L vs. 1.18 ± 0.15 mmol/L), TC (1.48 ± 0.24 mmol/L, 1.69 ± 0.27 mmol/L, 1.74 ± 0.27 mmol/L vs. 3.29 ± 0.26 mmol/L), FFA (251.08 ± 48.18 μmol/L, 277.53 ± 56.73 μmol/L, 291.82 ± 48.67 μmol/L vs. 432.19 ± 67.83 μmol/L), ALT (29.32 ± 4.17 U/L, 31.26 ± 4.74 U/L, 33.56 ± 5.18 U/L vs. 47.21 ± 8.67 U/L), AST (11.05 ± 2.18 U/L, 12.15 ± 2.67 U/L, 12.96 ± 2.93 U/L vs. 19.43 ± 3.68 U/L), FBG (5.68 ± 1.22 mmol/L, 6.86 ± 1.36 mmol/L, 7.94 ± 1.82 mmol/L vs. 11.88 ± 2.54 mmol/L), FINS (8.48 ± 1.22 mmol/L, 9.55 ± 1.95 mmol/L, 9.96 ± 1.74 mmol/L vs. 12.96 ± 2.67 mmol/L), HOMA-IR (1.91 ± 0.26, 2.91 ± 0.65, 3.52 ± 0.58 vs. 6.89 ± 1.21) in serum of high-dose, middle-dose and low-dose groups were decreased than model group. Levels of FFA (242.19 ± 35.13 μmol/L, 259.78 ± 29.33 μmol/L, 277.62 ± 34.29 μmol/L vs. 436.48 ± 52.15 μmol/L), TG (23.65 ± 3.28 mmol/L, 24.41 ± 3.15 mmol/L, 25.37 ± 3.59 mmol/L vs. 15.98 ± 2.37 mmol/L), TC (7.15 ± 0.82 mmol/L, 8.60 ± 0.95 mmol/L, 8.86 ± 1.04 mmol/L vs. 36.98 ± 4.28 mmol/L) were in hepatic tissue of high-dose, middle-dose and low-dose groups were significantly lower than the model group. The levels of PGC-1α mRNA (1.24 ± 0.06, 1.02 ± 0.07, 0.99 ± 0.08 vs. 0.43 ± 0.06) in hepatic tissue of high-dose, middle-dose and low-dose groups were significantly higher than model group. Conclusions The phlegm-resolving and stasis-removing herbals may improve lipid metabolism by regulating the expression of PGC-1α mRNA, inhibiting gluconeogenesis and liver sugar output, correcting disturbance of lipid metabolism and improving insulin resistance.

Objective:To investigate the effects of microwave radiation on associative learning and memory function and hippocampal structure of mice.Methods:C57BL/6N mice were ramdomly divided into sham-radiated group ( n=27) and radiation group ( n=2). The radiation group was exposed to microwave at 2.856 GHz, 8 mW/cm 2 for 15 min, then their spatial and associative learning and memory function were examined with the morris water maze and shuttle box behavior experiment. The pathological changes of hippocampal tissue were observed by HE staining and light microscope, the ultrastructural changes of hippocampal tissue were observed by transmission electron microscope. Results:After microwave radiation, the times of mice crossing the platform for the reverse space exploration decreased from(3.60±0.79) times to (2.55±0.47) times( t=2.21, P=0.046), the average active escape rate decreased significantly ( t = 2.70, P<0.05), and the average active latency and the total shock time was significantly prolonged ( t = -3.09, -3.02, P < 0.05). At 8 d after microwave radiation, the nuclei of some neurons in the CA3 and DG regions of the hippocampus were pyknosis. The neurons were apoptotic, the synaptic spaces blurred, the glial cells swollen, and the perivascular spaces widened in the CA3 region of the hippocampus. Conclusions:Microwave radiation can decline the spatial reference memory ability and associative learning and memory ability of mice. The morphological and pathological changes of hippocampus are the structural basis of this dysfunction.

Objective To evaluate the relationship between concurrent myocardial bridge at anterior descending branch and the formation of coronary atherosclerosis plaques by using transluminal attenuation gradient (TAG). Methods A total of 198 patients underwent coronary CTA in Renji Hospital of Shanghai Jiaotong University School of Medcine from June 2017 to March 2018 and the results showed the anterior descending myocardial bridge. The data were retrospectively analyzed. All patients completed the coronary CTA with 320?row detector CT. According to the manifestations of myocardial bridge on CTA,the patients were divided into deep and superficial myocardial bridge groups. According to whether the patients were complicated with coronary atherosclerotic plaques, they were divided into isolated myocardial bridge group and myocardial bridge with coronary atherosclerotic plaque group. The thickness and length of myocardial bridge, the volume of coronary atherosclerotic plaques at the site of myocardial bridge, the pre?bridge and post?bridge TAG values, and the K ratio were recorded. Independent sample t test (normal distribution) or Mann?Whitney U test (skewed distribution) was used to compare the difference of measurement data among different groups. χ2 test was used to compare the difference of enumeration data among different groups. Pearson correlation test was used to analyze the correlation among pre?bridge and post?bridge TAG values,K ratio,thickness and length of myocardial bridge and plaque volume. The influence of above indexes on plaque occurrence was analyzed by binary logistic regression analysis. The relationship between main influence indexes and plaque formation was analyzed by receiver operating characteristic curve (ROC). Results Ninety nine patients had isolated myocardial bridge,99 with myocardial bridge and coronary atherosclerotic plaques,27 with superficial myocardial bridge and 171 with deep myocardial bridge. All atherosclerotic plaques occurred in pre?bridge and the mean volume of plaques was (91.6±83.0)mm3. The differences in sex, age, height, body weight and body mass index werenot statistically significant between isolated myocardial bridge group and myocardial bridge with coronary atherosclerotic plaque group (all P>0.05). The difference in pre?bridge TAG value was statistically significant between the isolated myocardial bridge group and myocardial bridge with coronary atherosclerotic plaque group (all P<0.05), but not statistically significant in post?bridge TAG value and K ratio (all P>0.05). The difference in pre?bridge and post?bridge TAG values and K value was not statistically significant between the superficial group and the deep group (all P>0.05). There was a weak negative correlation (r=-0.205,-0.316,-0.339,respectively,P<0.05) between the plaque volume and pre?bridge&post?bridge TAG values and K ratio. The pre?bridge TAG value significantly affected the plaque formation (P=0.014) and the odds ratio was 0.884 (95% CI 0.801 to 0.976). While other factors had no significant effects on plaque formation (all P>0.05). The area under curveof plaque formation promoted by pre?bridge TAG value was 0.582. When the diagnostic critical value was －37.26 HU/mm, the sensitivity and specificity of pre?bridge TAG value in plaque formation were 31.31% and 81.82%, respectively. Conclusion The TAG value of anterior descending bridge is an independent risk factor for plaque occurrence. The abnormal TAG value of anterior descending myocardial bridge can be detected early by CTA.

OBJECTIVE： To introduce Pharmaceutical Care Network Europe （PCNE） classification system to develop medication therapy management （MTM）， and to investigate the application of PCNE classification system in solving drug-related problems （DRPs） in type 2 diabetic patients and the effect of it on clinical outcomes. METHODS： The patients with type 2 diabetes diagnosed in endocrinology department of our hospital from Jul. 10， 2018 to Oct. 31， 2018 were randomly divided into clinical pharmacist-led intervention （“physician-pharmacist-nurse” mode） group and control group receiving only traditional medical services （“physician-nurse” mode）. According to PCNE classification， the number of DRPs found in the pharmaceutical intervention group， the types of problems， causes， the types of interventions， acceptance for interventions and outcomes were analyzed and evaluated. Drug compliance （the highest score is 8） and HbA1c compliance （＜7％） were compared between 2 groups during hospitalization （or at the discharge） and 3 months after discharge. RESULTS： Totally 76 cases were included （40 cases in pharmaceutical intervention group and 36 cases in control group）. During hospitalization， 51 DRPs were found in the pharmaceutical intervention group， among which 42 problems were related to the effectiveness of treatment， mainly due to improper usage and dosage （23 problems）； the types of intervention was mainly aimed at the patient level （24 problems）. 38 problems received intervention （acceptance rate was 74.51％） and 32 problems （62.75％） were completely solved. Compared with those at admission， after following up for 3 months patients with low score （6 points） in the drug compliance of the pharmaceutical intervention group decreased from 26 to 8 （P＜0.000 1）， patients with medium score （6-8 points） increased from 10 to 22 （P＝0.006 2）， patients with high score （8 points） increased from 4 to 10， and drug compliance improved significantly， while there was no significant change in drug compliance in the control group. Compared with those at the discharge， after 3 months’ follow-up， the HbA1c compliance rate of the pharmaceutical intervention group increased from 25.00％ to 77.50％， and that of the control group increased from 25.00％ to 55.56％. There were statistical differences （P＜0.000 1）， and HbA1c compliance rate of the pharmaceutical intervention group was significantly higher than that of the control group. CONCLUSIONS： In the practice of MTM service， clinical pharmacists use PCNE classification system to collect， analyze， intervene， solve and evaluate DRPs systematically. The service mode can provide reference for standardizing pharmaceutical care mode.

AIM:To investigate the therapeutic effect of menstrual blood-derived endometrial stem cells(MenSCs)on chemotherapy-induced intestinal mucositis and flora disorders in mice,and to explore the potential mecha-nism.METHODS:The mice were randomly divided into 3 groups including normal treatment,cisplatin(Cis)treatment and Cis+MenSC treatment,with 10 mice in each group.To induce intestinal mucositis,the mice were treated with Cis(2 mg·kg-1·d-1)by intraperitoneal injection for 5 consecutive days.Control mice for normal group were received equal vol-umes of normal saline.For Cis+MenSC treatment,MenSCs(1×106)was transplanted into the mice of Cis treated mice through tail vein.The performances and weight changes of mice were examined during the experiment.After the treat-ment,the small intestine and colon were isolated for subsequent HE staining,the ratio of F4/80 and IL-6 positive cells in small intestine were detected by immunohistochemical staining,and the expression of tight junction,inflammation and apoptosis related proteins was detected by Western blot.16S rDNA amplicon sequencing was performed to detect the diver-sity and richness of intestinal flora in mice.RESULTS:Compared to the Cis group,the MenSCs-treated mice showed sig-nificantly increased body weight,relieved intestinal lymphocytes infiltration,alleviated intestinal villous edema,and or-derly arranged glands in intestinal tissues.Further analysis indicated that MenSCs transplantation significantly up-regulat-ed the expression of intestinal tight junction related proteins ZO-1 and occludin in Cis-treated mice(P＜0.05).Subse-quently,MenSCs transplantation significantly inhibited the macrophages infiltration in intestinal tissues(P＜0.01),down-regulated the expression of pro-inflammatory factors IL-1 and IL-6 and pro-apoptotic protein Bax(P＜0.01),while up-regu-lated anti-inflammatory factor IL-10 and anti-apoptotic protein Bcl-2(P＜0.01).Additionally,further microflora sequenc-ing indicated that MenSCs transplantation prevented mice from Cis-induced intestinal flora disorder,and significantly re-duced the abundance of harmful bacteria such as isenbergiella tayi and Anaerotruncus colihominis(P＜0.01).At the same time,the abundance of beneficial bacteria Lactobacillus apodemi was increased(P＜0.05),thereby restoring the composi-tion and function of healthy intestinal flora.CONCLUSION:MenSCs transplantation alleviates the chemotherapy-in-duced damage of intestinal structure,relieves the symptoms of chemotherapy-induced mucositis and restores the homeosta-sis of intestinal flora in mice.

Objective:To discuss the mechanism of Yueju Pill in the treatment of functional dyspepsia (FD) based on network pharmacology and molecular docking.Methods:The chemical components and action targets of Yueju Pill were screened out by TCMSP platform and HERB, BATMAN-TCM database combined with literature were used to supplement effective components of Vietnam bow. The targets of FD were screened out by GeneCards database and OMIM database, and the intersection of the two targets was used to analyze the protein interactions using the STRING platform to construct the PPI network. Metascape platform was used for GO and KEGG pathway enrichment analysis, and Cytoscape 3.7.2 software was used to construct a network of "Yueju Pill components-functional dyspepsia targets-pathways". Online mapping tools were used to obtain the Venn plot of the intersection targets of Yueju Pill, FD and its related pathogenesis. Finally, AutoDock software was used for molecular docking.Results:The main active components of Yueju Pill in the treatment of FD are quercetin, wogonin, luteolin, kaempferol, etc. The main targets are AKT1, MAPK1, JUN, RELA, IL6, BCL2, BAX, MAPK8, EGFR, ESR1, etc. Molecular docking shows that the targets and the active components of the Yueju Pill have better binding abilit. The GO enrichment analysis result shows that there are 2 273 biological processes, 152 molecular functions and 91 cell components. KEGG enrichment analysis shows that there are 344 pathways associated with FD. According to literature review, the pathways related to FD include PI3K-Akt signaling pathway, AGE-RAGE signaling pathway, IL-17 signaling pathway, etc.Conclusion:Yueju Pill might act on AKT1, MAPK1, JUN, RELA, IL6, BCL2, BAX, MAPK8, EGFR, ESR1 and other targets to regulate PI3K-Akt signaling pathway, AGE-RAGE signaling pathways and IL-17 signaling pathway and it could treat FD.

Objective To develop a novel electric stapler, so as to improve the automation, convenience and precision of minimally invasive surgery. Methods The clamping, firing and turning mechanism of the new electric stapler was innovatively designed to realize the electric drive of minimally invasive surgical anastomosis on the basis of traditional mechanical stapler. The motion process of electric clamping, firing and double-screw turning mechanism was analyzed in detail, and the equations for motion function of three mechanisms were solved, providing a theoretical basis for the intelligent control algorithm of electric stapler. Results The electric clamping and firing process was simulated using ADAMS software to verify the equation of motion. The prototype of the new electric stapler was made, and the anastomosis experiment and blasting pressure experiment of the in vitro small intestine tissues were carried out. The range of anastomotic blasting pressure was between 3.7 kPa and 11.67 kPa, meeting the basic requirements in clinic. Conclusions The structure of the new electric stapler can meet the requirements of electric pressing and firing in minimally invasive surgery, contributing to achieve tissue anastomosis more conveniently, quickly and effectively.