Effect of multi-glycosides of Tripterygium wilfordii on renal injury in diabetic kidney disease rats through NLRP3/caspase-1/GSDMD pyroptosis pathway / 中国中药杂志

This study investigated the effect of multi-glycosides of Tripterygium wilfordii(GTW) on renal injury in diabetic kidney disease(DKD) rats through Nod-like receptor protein 3(NLRP3)/cysteine-aspartic acid protease-1(caspase-1)/gsdermin D(GSDMD) pyroptosis pathway and the mechanism. To be specific, a total of 40 male SD rats were randomized into the normal group(n=8) and modeling group(n=34). In the modeling group, a high-sugar and high-fat diet and one-time intraperitoneal injection of streptozotocin(STZ) were used to induce DKD in rats. After successful modeling, they were randomly classified into model group, valsartan(Diovan) group, and GTW group. Normal group and model group were given normal saline, and the valsartan group and GTW group received(ig) valsartan and GTW, respectively, for 6 weeks. Blood urea nitrogen(BUN), serum creatinine(Scr), alanine ami-notransferase(ALT), albumin(ALB), and 24 hours urinary total protein(24 h-UTP) were determined by biochemical tests. The pathological changes of renal tissue were observed based on hematoxylin and eosin(HE) staining. Serum levels of interleukin-1β(IL-1β) and interleukin-18(IL-18) were detected by enzyme-linked immunosorbent assay(ELISA). Western blot was used to detect the expression of pyroptosis pathway-related proteins in renal tissue, and RT-PCR to determine the expression of pyroptosis pathway-related genes in renal tissue. Compared with the normal group, the model group showed high levels of BUN, Scr, ALT, and 24 h-UTP and serum levels of IL-1β and IL-18(P<0.01), low level of ALB(P<0.01), severe pathological damage to kidney, and high protein and mRNA levels of NLRP3, caspase-1, and GSDMD in renal tissue(P<0.01). Compared with the model group, valsartan group and GTW group had low levels of BUN, Scr, ALT, and 24 h-UTP and serum levels of IL-1β and IL-18(P<0.01), high level of ALB(P<0.01), alleviation of the pathological damage to the kidney, and low protein and mRNA levels of NLRP3, caspase-1, and GSDMD in renal tissue(P<0.01 or P<0.05). GTW may inhibit pyroptosis by decreasing the expression of NLRP3/caspase-1/GSDMD in renal tissue, thereby relieving the inflammatory response of DKD rats and the pathological injury of kidney.

Synthesis and anti-HCC activity of full 2ʹ-F/OMe-siRNA encapsulated with neutral cytidinyl/cationic lipid / 药学学报

A variety of full 2ʹ-F/OMe-modified siRNAs were designed and synthesized, and the activity against hepatocellular carcinoma Huh-7 and HepG2 cells was evaluated. K&A DNA/RNA H-8 synthesizer was used to synthesize siRNAs, and neutral cytidinyl lipid DNCA mixed with cationic lipid CLD were used to transfect siRNA. By RT-qPCR and CCK-8 assay, the target gene silence and the proliferation of Huh-7 and HepG2 cells were detected. The siRNAs loading into Ago2 protein was detected by RNA-binding protein immunoprecipitation. Drug uptake and cell apoptosis were detected by flow cytometry, and the expression of PLK1 protein was detected by Western blot. Partial full 2ʹ-F/OMe modified siRNAs, especial siPLK1A3, increased the uptake of Huh-7 cells, enhanced their binding to Ago2 and gene silencing activity, down-regulated PLK1 protein, as well as induced more Huh-7 cell apoptosis and proliferation inhibition activity. It provides important data for the development of novel siRNA modification patterns and anti-HCC formulations.

Taking the mechanism of glucose catabolism disorder in depression as an example to explore the research ideas and strategies of stable isotope tracer metabolomics / 药学学报

Stable isotope tracer metabolomics tracks and analyzes the whole metabolic process of the body through the tracer atoms, which belongs to the frontier technology in the field of biomedicine. This technology is of great significance and value for explaining the pathogenesis of diseases, finding biomarkers of diseases and drug action targets. Taking the mechanism of glucose catabolism disorder in depression as an example, this paper systematically expounds the stable isotope tracer metabolomics technology and its application. The research idea of stable isotope tracer metabolomics based on unmarked metabolomics was put forward, and the research strategy of biological significance interpretation from four dimensions of metabolite isotope abundance, key metabolic enzymes, metabolic flow direction and metabolite flow was given, which broke through the bottleneck of stable isotope tracer metabolomics research technology based on overall animal experiment, and provided scientific basis for the promotion and application of this technology.

Prognostic Prediction Value and Biological Functions of Non-Apoptotic Regulated Cell Death Genes in Lung Adenocarcinoma / 中国医学科学杂志(英文版)

Objective To explore the potential biological functions and prognostic prediction values of non-apoptotic regulated cell death genes (NARCDs) in lung adenocarcinoma.Methods Transcriptome data of lung adenocarcinoma were downloaded from The Cancer Genome Atlas and Gene Expression Omnibus databases. We identified differentially expressed NARCDs between lung adenocarcinoma tissues and normal tissues with R software. NARCDs signature was constructed with univariate Cox regression analysis and the least absolute shrinkage and selection operator Cox regression. The prognostic predictive capacity of NARCDs signature was assessed by Kaplan-Meier survival curve, receiver operating characteristic curve, and univariate and multivariate Cox regression analyses. Functional enrichment of NARCDs signature was analyzed with gene set variation analysis, Gene Ontology, and Kyoto Encyclopedia of Genes and Genomes. In addition, differences in tumor mutational burden, tumor microenvironment, tumor immune dysfunction and exclusion score, and chemotherapeutic drug sensitivity were analyzed between the high and low NARCDs score groups. Finally, a protein-protein interaction network of NARCDs and immune-related genes was constructed by STRING and Cytoscape software. Results We identified 34 differentially expressed NARCDs associated with the prognosis, of which 16 genes (ATIC, AURKA, CA9, ITGB4, DDIT4, CDK5R1, CAV1, RRM2, GAPDH, SRXN1, NLRC4, GLS2, ADRB2, CX3CL1, GDF15, and ADRA1A) were selected to construct a NARCDs signature. NARCDs signature was identified as an independent prognostic factor (P < 0.001). Functional analysis showed that there were significant differences in mismatch repair, p53 signaling pathway, and cell cycle between the high NARCDs score group and low NARCDs score group (all P < 0.05). The NARCDs low score group had lower tumor mutational burden, higher immune score, higher tumor immune dysfunction and exclusion score, and lower drug sensitivity (all P < 0.05). In addition, the 10 hub genes (CXCL5, TLR4, JUN, IL6, CCL2, CXCL2, ILA, IFNG, IL33, and GAPDH) in protein-protein interaction network of NARCDs and immune-related genes were all immune-related genes. Conclusion The NARCDs prognostic signature based on the above 16 genes is an independent prognostic factor, which can effectively predict the clinical prognosis of patients of lung adenocarcinoma and provide help for clinical treatment.

Entinostat, a class I selective histone deacetylase inhibitor, plus exemestane for Chinese patients with hormone receptor-positive advanced breast cancer: A multicenter, randomized, double-blind, placebo-controlled, phase 3 trial

Entinostat plus exemestane in hormone receptor-positive (HR+) advanced breast cancer (ABC) previously showed encouraging outcomes. This multicenter phase 3 trial evaluated the efficacy and safety of entinostat plus exemestane in Chinese patients with HR + ABC that relapsed/progressed after ≥1 endocrine therapy. Patients were randomized (2:1) to oral exemestane 25 mg/day plus entinostat (n = 235) or placebo (n = 119) 5 mg/week in 28-day cycles. The primary endpoint was the independent radiographic committee (IRC)-assessed progression-free survival (PFS). The median age was 52 (range, 28-75) years and 222 (62.7%) patients were postmenopausal. CDK4/6 inhibitors and fulvestrant were previously used in 23 (6.5%) and 92 (26.0%) patients, respectively. The baseline characteristics were comparable between the entinostat and placebo groups. The median PFS was 6.32 (95% CI, 5.30-9.11) and 3.72 (95% CI, 1.91-5.49) months in the entinostat and placebo groups (HR, 0.76; 95% CI, 0.58-0.98; P = 0.046), respectively. Grade ≥3 adverse events (AEs) occurred in 154 (65.5%) patients in the entinostat group versus 23 (19.3%) in the placebo group, and the most common grade ≥3 treatment-related AEs were neutropenia [103 (43.8%)], thrombocytopenia [20 (8.5%)], and leucopenia [15 (6.4%)]. Entinostat plus exemestane significantly improved PFS compared with exemestane, with generally manageable toxicities in HR + ABC (ClinicalTrials.gov #NCT03538171).

The role and preliminary mechanism of Heparin-binding protein in the develoment of acute pancreatitis / 中华急诊医学杂志

Objective:To explore the role and preliminary mechanism of heparin-binding protein (HBP) in the development of acute pancreatitis (AP) through clinical analysis and animal models.Methods:(1) Clinical research: Blood samples were collected from AP patients admitted to the Second Affiliated Hospital of Anhui Medical University from January 1 to December 31, 2021 within 30 min of admission, including 20 patients with severe acute pancreatitis (SAP) and 20 patients with non-severe acute pancreatitis (NSAP). Enzyme-linked immunosorbent assay (ELISA) was used to detect the levels of HBP, syndecan-1 and hyaluronic acid (HA). Modified CT severity index (MCTSI), another 20 healthy volunteers were selected as controls (HC). Spearman correlation analysis was used to analyze the correlation between HBP and syndecan-1, HA and MCTSI. Receiver operating characteristic (ROC) curve was used to evaluate HBP to predict AP severity. (2)Animal experiment: The rat model of acute pancreatitis was prepared by intraperitoneal injection of L-arginine. In the normal control group (NC, n=8), the low molecular weight heparin (LMWH) intervention group ( n=8), and the acute pancreatitis group ( AP, n=8), the rats were euthanized 12 h later, and peripheral venous blood was collected to detect the levels of HBP, syndecan-1 and HA. Lung tissue and pancreas tissue were collected to observe the pathological damage, and the polysaccharide coating damage of vascular endothelial cells was observed under a fluoroscopy electron microscope. Results:The level of HBP at admission was significantly higher in the AP group than in the HC group, and the increase in the SAP group was more obvious. Correlation analysis showed that HBP was positively correlated with syndecan-1, HA and MCTSI. Animal studies found that the levels of HBP, syndecan-1 and HA in the AP group were significantly higher than those in the NC group. The pancreatic pathological score showed that the AP group was significantly increased, and the fluoroscopy electron microscope showed that the vascular polysaccharide coating was complete in the NC group, and the structure of the AP group was severely damaged. After LMWH intervention, the structure shedding and damage were significantly reduced, and the difference was statistically significant.Conclusions:HBP can promote the progression of AP, which is related to the destruction of the polysaccharide coating structure of endothelial cells and the increase of vascular permeability caused by HBP.

Mechanism of heroin promoting addiction and relapse in progeny of male rats by inhibiting promoter methylation of imprinted gene H19 by down-regulating DNMT3a / 中国药理学通报

Aim To investigate the effect of heroin use in male rats of F0 generation on heroin addiction and relapse in rats of Fl generation and the underlying mechanism. Methods Male rats of F0 generation were treated with different doses of heroin (1, 3, 9 mg • kg

Research progress on efflux pump inhibitors of Mycobacterium tuberculosis in recent years / 药学学报

Currently, the resistance of first-line anti-tuberculosis drugs has made the prevention and treatment of tuberculosis increasingly difficult, posing a serious threat to global public health. Several studies have shown that efflux pumps are one of the important causes for bacteria to develop multi-drug resistance and extremely-drug resistance, and efflux pump inhibitors can inhibit the efflux of antibacterial drugs, thereby reducing bacterial drug resistance. Numerous natural products and synthetic compounds have been reported to possess efflux pump inhibitory activity, but they have not been applied in clinical settings because of their toxicity, pharmacokinetic properties, etc. Therefore, we summarized the efflux pump inhibitory activity, antimicrobial activity, and structure-activity relationships of reported efflux pump inhibitors against Mycobacterium tuberculosis in recent years, providing references for the development of new efflux pump inhibitors with better activity and lower toxicity.

Study on influencing factors and needs of medical personnel in scientific research of a tertiary hospital in Jieyang / 中华医学科研管理杂志

Objective:To understand the needs, problems and challenges of medical personnel in the hospital for scientific research, propose tailored management measurements and suggestions for the hospital.Methods:The questionnaire was prepared by " Questionnaire Star" , the convenience sampling method was used, and information was collected by WeChat online chat group. Factor analysis and multi-dimensional preference analysis were adopted to analyze information collected.Results:Four main factors that affect the scientific research of medical personnel were identified. The most significant impact is the lack of information platform, followed by the lack of environmental atmosphere, lack of personal capacity and lack of personal interest. The research needs of medical personnel are divided into two categories: one is the more basic skill needs, which are mainly targeted at female, nurses, undergraduates, 5~10 years′ working experiences, medium-grade professional title, and people with no knowledge and experience in research. The other one is the needs of skill improvement, which are mainly targeted at younger, physicians, early career, lower professional titles, and had certain research knowledge.Conclusions:So far, there is a lot of space for improvement. It is recommended to promote the capacity building by training, strengthen the research team building and construct of research communication platform, at the same time, update the scientific research management system.

Simple obesity of stomach heat and damp obstruction treated with acupoint thread embedding therapy: a randomized controlled trial / 中国针灸

OBJECTIVE@#To explore the therapeutic effect and safety of acupoint thread embedding therapy in treatment of simple obesity of stomach heat and damp obstruction.@*METHODS@#A total of 144 patients with simple obesity of stomach heat and damp obstruction were randomized into an acupoint thread embedding group (72 cases, 3 cases dropped off and 1 case removed) and a sham-embedding group (72 cases, 6 cases dropped off and 3 cases removed). On the base of the lifestyle adjustment, the acupoint thread embedding therapy with PGLA thread was applied to Tianshu (ST 25), Zhongwan (CV 12), Ganshu (BL 18), Shuidao (ST 28), etc. in the acupoint thread embedding group, while in the sham-embedding group, the acupoint selection and operation were all same as the acupoint thread embedding group, but without PGLA thread embedded. In either group, the treatment was given once every 2 weeks, consecutively for 12 weeks and the follow-up was conducted for 3 months after treatment. Separately, before and after treatment as well as in follow-up, the obesity indices (body mass index [BMI], waist circumference [WC], waist-to-hip ratio [WHR] and fat percentage [F%]) were observed in the two groups. Before and after treatment, the indices of blood glucose and insulin (fasting blood glucose [FBG], fasting insulin [FINS] and insulin resistance index [HOMA-IR]), adipocyte factor indices (adiponectin, leptin [LP] and serine protease inhibitor [Vaspin]) and inflammatory factor indices (tumor nercosis factor [TNF-α], interleukin-1β [IL-1β] and interleukin-6 [IL-6]) were observed separately in the two groups. The therapeutic effect and safety were compared between the two groups.@*RESULTS@#After treatment and in follow-up, except WC and WHR in the sham-embedding group, BMI, WC, WHR and F% were all reduced as compared with those before treatment in the two groups (P<0.01, P<0.05), and the values in the acupoint thread embedding group were lower than the sham-embedding group (P<0.01). After treatment, except FBG, LP and Vaspin in the sham-embedding group, FBG, FINS, HOMA-IR, LP and Vaspin were all reduced as compared with those before treatment in the two groups (P<0.01, P<0.05), and adiponectin was increased as compared with that before treatment (P<0.01, P<0.05); the improvements in the acupoint thread embedding group were more significant than the sham-embedding group (P<0.01). After treatment, the levels of serum TNF-α, IL-1β and IL-6 in the acupoint thread embedding group were reduced as compared with the values before treatment and those in the sham-embedding group separately (P<0.01). The total effective rate was 89.7% (61/68) in the acupoint thread embedding group, higher than 19.0% (12/63) in the sham-embedding group (P<0.01). There was no severe adverse reaction reported in the two groups.@*CONCLUSION@#Acupoint thread embedding therapy with PGLA thread can alleviate obesity, regulate glucose metabolism and adipocyte factors activity, improve insulin resistance and inhibit the expression of pro-inflammatory factors in the patients with simple obesity with stomach heat and damp obstruction, and this therapy presents a satisfactory safety in treatment.

Research progress of metabolic flux analysis technology in glucose metabolism pathway research / 药学学报

With the wide application of stable isotope tracer metabolomics technology, its comprehensive analysis and in-depth mining of data are particularly important, and metabolic flux analysis is one of the main technical means, especially in the study of glucose metabolism. Metabolic flux analysis technology combines isotope tracing with mathematical models to deduce and calculate the metabolic flux between metabolites. The metabolic flux provides more information for research and reflects a dynamic metabolic process more clearly and specifically. This paper reviews the basic process, precautions, and application examples of metabolic flux analysis in glucose metabolism research, and provides a reference for the application of metabolic flux analysis based on stable isotope tracer metabolomics in glucose metabolism research.

Exploring Hypertension from "Collateral" and "Wind" of Jueyin / 中国实验方剂学杂志

Hypertension is the most important risk factor for cardiovascular and cerebrovascular diseases， affecting the structures and functions of important organs of the body， such as the heart， brain， and kidney. At present， the prevalence of hypertension in China remains high. How to effectively curb the incidence of hypertension and reduce target organ damage in patients with hypertension is an urgent challenge that needs to be addressed. Traditional Chinese medicine （TCM）， by virtue of its unique efficacies and advantages， is increasingly applied around the world. In TCM， "wind" is considered as a major constant factor in the development of hypertension. Some scholars believe that hypertension is located in collaterals， and the lesions of collaterals are also important reasons for the occurrence and development of hypertension. Collateral diseases and pathogenic wind are closely related to the development of hypertension as well as target organ damage in the heart， brain， and kidney. From the six-meridian syndrome differentiation for febrile diseases， "collateral" and "wind" are closely related to the Jueyin， with collateral diseases classified into Jueyin diseases and pathogenic wind beginning in the Jueyin. The occurrence， development， and persistence of hypertension are closely related to Jueyin diseases. The present study analyzed the pathogenesis and treatment of hypertension from "collateral" and "wind" of the Jueyin， and specifically discussed the relationship between hypertension and "collateral" and "wind" of the Jueyin. It is believed that the internal depression of wind and fire in the Jueyin results in the upward impulse of liver fire， and the deficiency of Jueyin can trigger the internal movement of liver wind and stirring wind due to collateral deficiency. External contraction in the Jueyin due to the induction of external wind is the important pathogenesis of the development of hypertension and the damage to target organs such as the heart， brain， and kidney. The therapeutic methods for both "collateral" and "wind" were also discussed based on the primary prescription for Jueyin， Wumei Pills. Six-meridian syndrome differentiation can guide the therapeutic principles for all diseases and inspire posterity. Exploring the pathogenesis and treatment of hypertension from “collateral" and "wind" of the Jueyin is of great significance in guiding the prevention and treatment of hypertension， reducing target organ damage in patients with hypertension， and improving the prognosis of cardiovascular and cerebrovascular diseases.

Interactions between remote ischemic conditioning and post-stroke sleep regulation / 医学前沿

Sleep disturbances are common in patients with stroke, and sleep quality has a critical role in the onset and outcome of stroke. Poor sleep exacerbates neurological injury, impedes nerve regeneration, and elicits serious complications. Thus, exploring a therapy suitable for patients with stroke and sleep disturbances is imperative. As a multi-targeted nonpharmacological intervention, remote ischemic conditioning can reduce the ischemic size of the brain, improve the functional outcome of stroke, and increase sleep duration. Preclinical/clinical evidence showed that this method can inhibit the inflammatory response, mediate the signal transductions of adenosine, activate the efferents of the vagal nerve, and reset the circadian clocks, all of which are involved in sleep regulation. In particular, cytokines tumor necrosis factor α (TNFα) and adenosine are sleep factors, and electrical vagal nerve stimulation can improve insomnia. On the basis of the common mechanisms of remote ischemic conditioning and sleep regulation, a causal relationship was proposed between remote ischemic conditioning and post-stroke sleep quality.

Mechanism of Ficus hirta-Hypericum perforatum in treatment of microvascular angina based on network pharmacology and molecular docking / 中国中药杂志

The active ingredients of Ficus hirta and Hypericum perforatum were collected from Traditional Chinese Medicine Database and Analysis Platform(TCMSP) and related papers. The potential targets of these two medicinal herbs were searched from HERB database, and those associated with microvascular angina were screened out from GeneCards, Online Mendelian Inheritance in Man(OMIM), Therapeutic Target Database(TTD), and HERB. Cytoscape was used to construct a protein-protein interaction(PPI) network of the common targets shared by the two herbs and microvascular angina based on the data of String platform. Metascape was employed to identify the involved biological processes and pathways enriched with the common targets. Cytoscape was used to draw the "active ingredient-target-pathway" network. AutoDock Vina was used to dock the core ingredients with the key targets. A total of 19 potential active ingredients and 71 potential targets were identified to be associated with microvascular angina. Bioinformatics analysis showed that phosphatidylinositol-3-kinase/protein kinase B(PI3 K-AKT), interleukin-17(IL17), hypoxia-inducible factor 1(HIF-1) and other signaling pathways were related to the treatment of microvascular angina by F. hirta and H. perforatum. Molecular docking results showed that β-sitosterol, luteolin and other ingredients had strong affinity with multiple targets including mitogen-associated protein kinase 1(MAPK1), epidermal growth factor receptor(EGFR) and so on. These findings indicated that F. hirta and H. perforatum may regulate PI3 K-AKT, IL17, HIF-1 and other signaling pathways by acting on multiple targets to alleviate oxidative stress, inhibit inflammatory response, regulate angiogenesis, and improve vascular endothelium and other functions. This study provides reference for in vitro and in vivo studies of the treatment of microvascular angina.

The impact of obstructive sleep apnea hypopnea syndrome on the perioperative and long-term outcome in patients with Stanford type A aortic dissection / 中华耳鼻咽喉头颈外科杂志

Objective: To confirm the impact of obstructive sleep apnea hypopnea syndrome (OSAHS) on perioperative and long-term outcome in patients with Stanford type A aortic dissection. Methods: From June 2010 to July 2017, the clinical data of 91 patients with Stanford type A aortic dissection were analyzed. Among them, 51 patients with OSAHS were included in the study group and 40 patients without OSAHS were included in the control group. After 36 months follow-up, all-cause death was regarded as the end event. The clinical baseline data, perioperative period and 36 months survival rate of the two groups were compared. Kanplan-Meier method was used to describe the 36 month survival curve of the two groups. Cox proportional risk model was used to evaluate the risk ratio (HR) and 95%CI of 36 month survival rate. Results: The mortality rate during hospitalization was 5.9% (3 cases) in the study group and 5.0% (2 cases) in the control group, and the difference was not statistically significant (χ~2=0.03, P>0.05). The actual follow-up was (36.2±1.5) months, 88 cases were followed up and 3 cases were lost. The all cause mortality rate of 36 months was 27.5% (14/51)in the study group and 10.0%(4/40) in the control group, the difference was statistically significant (χ~2=4.30, P<0.05).By Cox proportional risk model analysis, 36 months after operation, the study group was compared with the control group after adjusting for age, male, bicuspid of aortic valve, chronic obstructive pulmonary disease, anemia, preoperative pericardial tamponade, postoperative organ dysfunction, preoperative LVEF, emergency operation, Sun's operation, coronary artery bypass grafting, hypertension, cardiac arrhythmia, and advanced avulsion of distal aortic dissection The survival rate was lower, the difference was statistically significant (P<0.05).In addition to OSAHS, coronary artery bypass grafting and preoperative pericardial tamponade were also risk factors for the increase of 36 month mortality rate (HR=11.28,95%CI: 1.98-46.25, P=0.009; HR=9.08, 95%CI: 2.22-41.3, P=0.032). Conclusions: There was no significant difference in mortality during hospitalization in patients with Stanford A aortic dissection combined with OSAHS. The survival rate of 36 months after operation was lower than that of the control group.

AIDS， syphilis and gonorrhea testing results among 385 men who have sex with men in Dehong Prefecture in 2018 / 上海预防医学

ObjectiveTo understand the infection of AIDS， syphilis， and gonorrhea in men who have sex with men （MSM）， and the factors influencing the acceptance of gonorrhea testing in Dehong Dai Jingpo Autonomous Prefecture （Dehong Prefecture）， Yunnan Province. MethodsAcross-sectional survey was conducted to describe and analyze the acceptance of AIDS， syphilis， and gonorrhea testing among MSM tracked in Dehong Prefecture in 2018. ResultsA total of 385 MSM were included in the analysis， with a 100.0% HIV and syphilis testing rate. The HIV antibody positivity rate was 10.6% （41/385） and the positivity rate of syphilis antibody was 14.8%（57/385）. Only 30.4% of the subjects were willing to test for gonorrhea， and 13.7%（16/117）of them were test positive. Further multifactorial analysis revealed that local MSM and syphilis co-infected individuals were more likely to be tested for gonorrhea （aOR=2.48， 95%CI=1.33-4.65， P=0.004； aOR=2.59， 95%CI=1.43-4.71， P=0.002）. ConclusionThe positive rates of AIDS， syphilis and gonorrhea in MSM population in Dehong Prefecture are relatively high. Integrated interventions of STD/AIDS and gonorrhoea detection should be strengthened.

AIDS， syphilis and gonorrhea testing results among 385 men who have sex with men in Dehong Prefecture in 2018 / 上海预防医学

ObjectiveTo understand the infection of AIDS， syphilis， and gonorrhea in men who have sex with men （MSM）， and the factors influencing the acceptance of gonorrhea testing in Dehong Dai Jingpo Autonomous Prefecture （Dehong Prefecture）， Yunnan Province. MethodsAcross-sectional survey was conducted to describe and analyze the acceptance of AIDS， syphilis， and gonorrhea testing among MSM tracked in Dehong Prefecture in 2018. ResultsA total of 385 MSM were included in the analysis， with a 100.0% HIV and syphilis testing rate. The HIV antibody positivity rate was 10.6% （41/385） and the positivity rate of syphilis antibody was 14.8%（57/385）. Only 30.4% of the subjects were willing to test for gonorrhea， and 13.7%（16/117）of them were test positive. Further multifactorial analysis revealed that local MSM and syphilis co-infected individuals were more likely to be tested for gonorrhea （aOR=2.48， 95%CI=1.33-4.65， P=0.004； aOR=2.59， 95%CI=1.43-4.71， P=0.002）. ConclusionThe positive rates of AIDS， syphilis and gonorrhea in MSM population in Dehong Prefecture are relatively high. Integrated interventions of STD/AIDS and gonorrhoea detection should be strengthened.

Anti-tumor Effect of Piceatannol on Triple Negative Breast Cancer Cell Line MDA-MB-468 and Its Mechanism / 中国实验方剂学杂志

Objective:To investigate the effect of piceatannol （PIC） on the proliferation， apoptosis and cell cycle of MDA-MB-468 triple negative breast cancer cells and its mechanism. Method:The methylthiazolyldiphenyl-tetrazoliu bromide （MTT） colcorimetry method was used to investigate the effect of different concentrations of PIC （0， 2.5， 5.0， 10.0， 20.0， 40.0， 80.0， 160.0 μmol·L^-1） on the cell viabilities of triple negative breast cancer MDA-MB-468 cells and calculate the half maximal inhibitory concentration （IC₅₀） value， the effect of different concentrations of PIC （5.0， 10.0， 20.0 μmol·L^-1） on the cell cycle of MDA-MB-468 were investigated by flow cytometry with propidium iodide （PI） staining. The apoptotic effect of PIC （5.0， 10.0， 20.0 μmol·L^-1） on MDA-MB-468 cells in triple negative breast cancer was investigated by flow cytometry with cell apoptosis detection Annexin V-FITC and PI double staining. Western blot was used to investigate the effect of different concentrations of PIC （5.0， 10.0， 20.0 μmol·L^-1） on the proliferation and apoptosis of MDA-MB-468 cells and detect the expressions ofsecreted glycoprotein Wnt/<italic>β</italic>-catenin pathway related proteins. Result:MTT results showed that compared with the blank group， PIC could inhibit the proliferation of MDA-MB-468 cells in a concentration-dependent manner （<italic>P</italic><0.05， <italic>P</italic><0.01）， with IC₅₀ at（39.4±4.6）μmol·L^-1. Compared with the blank group， PIC could increase the percentage of MDA-MB-468 cells in G₀/G₁ phase about cell cycle in a concentration-dependent manner （<italic>P</italic><0.01）. Compared with the blank group， 5.0， 10.0， 20.0 μmol·L^-1 PIC could induce apoptosis of MDA-MB-468 cells for 48 h（<italic>P</italic><0.01）， and the apoptosis rate of MDA-MB-468 cells reached 49.87% when treated with 20.0 μmol·L^-1 for 48 h. Compared with the blank group， PIC could significantly reduce the expressions of <italic>β</italic>-catenin， proto-oncogene （C-myc） and adhesion factor （CD44） proteins in MDA-MB-468 cells， significantly inhibit the phosphorylation of<italic> </italic>protein kinase B （Akt） and p38 mitogen activated protein kinase （p38 MAPK） proteins and the protein expression of B lymphocyte tumor-2 （Bcl-2）， and enhance cysteine aspartic acid protease-3 （Caspase-3）， Bcl-2 related X protein （Bax） and phosphorylated <italic>β</italic>-catenin protein expression（<italic>P</italic><0.01）. Conclusion:PIC may inhibit the proliferation of MDA-MB-468 cells by inhibiting the Wnt/<italic>β</italic>-catenin signaling pathway， block the cell cycle in G0/G1 phase， and induce its apoptosis.

Anti-breast Cancer Activities in Vitro of Oxymatrine Combined with Bevacizumab： An Exploration Focusing on EMT Regulation Through Wnt/β-catenin / 中国实验方剂学杂志

Objective:To observe the effect of oxymatrine （OM） combined with bevacizumab （ BV ） on the proliferation， invasion， and migration of breast cancer MCF-7 cells and explore the mechanism of OM in regulating BV-induced epithelial-mesenchymal transition （EMT） based on the Wnt/<italic>β</italic>-catenin signaling pathway. Method:The effect of different concentrations of OM（0， 0.5， 1.0， 2.0， 4.0， 8.0， 16.0 mmol·L^-1）and BV（0， 0.25×10^-4， 0.50×10^-4， 1.00×10^-4， 2.00×10^-4， 4.00×10^-4， and 8.00×10^-4 mmol·L^-1）on the proliferation of MCF-7 cells were detected by cell counting kit-8（CCK-8）assay. The effect of OM（4.0 mmol·L^-1） combined with BV（2.00×10^-4 mmol·L^-1）on the invasion and migration of MCF-7 cells were observed in transwell and scratch repair tests. Western blot was conducted to investigate the effect of OM（4.0 mmol·L^-1）combined with BV （2.00×10^-4 mmol·L^-1） on proliferation-related proteins in MCF-7 cells， followed by the detection of the expression levels of Wnt/<italic>β</italic>-catenin signaling pathway- and EMT-related proteins. Result:Compared with the blank group， OM （2.0，4.0，8.0，16.0 mmol·L^-1） inhibited the proliferation of MCF-7 cells in a concentration-dependent manner （<italic>P</italic><0.01）， while BV did not show the inhibitory effect against the proliferation of MCF-7 cells. The inhibitory effect of the combination of the two drugs on the proliferation of MCF-7 cells was not significantly different from that of OM. Compared with the blank group， OM significantly reduced the migration distance of MCF-7 cells and the number of invaded cells（<italic>P</italic><0.01）， while BV increased the migration distance of MCF-7 cells and the number of invaded cells （<italic>P</italic><0.05，<italic>P</italic><0.01）. Compared with BV， its combination with OM significantly inhibited the invasion and migration of MCF-7 cells induced by BV （<italic>P</italic><0.01）. Compared with the blank group， both OM and the combined medication obviously inhibited the phosphorylation of proliferation-related protein kinase B（Akt） and extracellular-signal-regulated protein kinase 1/2 （ERK1/2）in MCF-7 cells （<italic>P</italic><0.01） and down-regulated the protein expression levels of <italic>β</italic>-catenin， proto-oncogene （c-Myc）， CD44， and G₁/S-specific cyclin D₁ in Wnt/<italic>β</italic>-catenin signaling pathway （<italic>P</italic><0.05，<italic>P</italic><0.01）. Besides， OM and the combination of two drugs both significantly reduced the protein expression levels of calcium-dependent cell adhesion protein <italic>N</italic>-cadherin and Vimentin in EMT， whereas increased the expression of calcium-dependent cell adhesion protein E-cadherin（<italic>P</italic><0.01）. However， the expression of the above-mentioned proteins in the BV group was reversed （<italic>P</italic><0.05，<italic>P</italic><0.01）. Conclusion:After the combination with BV， OM plays an anti-breast cancer role by effectively inhibiting the activation of Wnt/<italic>β</italic>-catenin pathway induced by BV and reversing EMT.

Effect of Different Modes of Exercise on Sarcopenia in Older Adults: A Meta-analysis / 中国康复理论与实践

Objective:To evaluate the effectiveness of single modal and multimodal exercise interventions on sarcopenia in the elderly. Methods:Randomized controlled trials about the effects of single modal and multimodal exercises on the improvement of sarcopenia in the elderly were retrieved from seven databases (PubMed, Embase, Web of Science, Cochrane Library, CNKI, VIP and Wanfang data) from the establishment of the databases to July, 2021. Two researchers selected the literatures independently, and evaluated the quality of methodology. The meta-analysis was performed with RevMan 5.3. Results:A total of 15 studies were incorporated, including 816 cases of sarcopenia. Compared to the blank control group, the skeletal muscle mass index improved little with single (MD = -0.05, 95%CI -0.14 to 0.04, P > 0.05) and multiple (MD = 0.15, 95%CI -0.01 to 0.31, P > 0.05) exercises. The maximum grip force improved with both single (MD = 2.06, 95%CI 0.25 to 3.87, P < 0.05) and multiple (MD = 2.36, 95%CI 1.10 to 3.63, P < 0.001) exercises. The knee extensors strength (SMD = 0.49, 95%CI 0.26 to 0.73, P < 0.001) and the walking speed (MD = 0.24, 95% CI 0.19 to 0.29, P < 0.001) improved with multimodal exercises. Conclusion:Single modal exercise may improve maximal grip strength in the elderly with sarcopenia, and multimodal exercise may be effective on maximal grip strength, knee extensors strength and walking speed.