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1.
Chinese Journal of School Health ; (12): 1051-1054, 2022.
Article in Chinese | WPRIM | ID: wpr-936534

ABSTRACT

Objective@#To understand the prevalence and associated factors of school bullying among primary and secondary school students in Haidian District, and to provide scientific basis for intervention plan.@*Methods@#From September to October 2021, 1 906 primary and secondary school students in Haidian District were selected by stratified cluster random sampling for electronic questionnaire survey,an electronic questionnaire survey was conducted on students by using the questionnaire of the Student Health Status and Influencing Factors Questionnaire.@*Results@#The prevalence of campus bullying among primary and secondary school students in Haidian District was 4.3%, of which primary school (7.6%) > junior middle school (4.1%) > vocational high school (2.5%) > senior high school (1.9%) ( χ 2=23.49, P <0.01), boys (5.5%) were more than girls (3.0%) ( χ 2=7.44, P < 0.01 ), students from abnormal families (6.9%) were higher than students from normal families (3.9%) ( χ 2=4.24, P =0.04). Multivariate Logistic regression analysis showed that students in primary school had a higher risk of being bullied in school ( OR =2.13). Abnormal family ( OR = 1.07 ), smoking experience ( OR =2.28), experience of being beaten and scolded by parents( OR =2.49) and fighting behavior ( OR =1.84) were positively correlated with school bullying ( P <0.05).@*Conclusion@#Campus bullying is prevalent in primary and secondary schools in Haidian District, which warrents further attention of schools and education departments. Family school partnership and targeted prevention and intervention measures for key populations are expected.

2.
Article in Chinese | WPRIM | ID: wpr-928852

ABSTRACT

An absorbable hemostatic material based on polysaccharide was prepared. The concentration of blood cells and coagulation factors was increased by reducing the water content in the blood, so as to reduce the coagulation time and achieve the purpose of rapid hemostasis. The specific surface area of starch was increased by using hydrochloric acid to hydrolyze potato starch, which made it easier to combine with α-amylase and increased the degradation rate. Starch was crosslinked into microspheres by crosslinking agent, which made the particle size uniform and greatly improved the water absorption. The surface modification of crosslinked starch microspheres with carboxymethyl group can further improve the water absorption of hemostatic materials. The results showed that the water absorption rate of our hemostatic material was more than 800%, and the average hemostatic time in the animal model was 138.7s. Compared with the imported products on the market, our hemostatic material have better hemostatic performance.


Subject(s)
Animals , Hemostasis , Hemostatics/pharmacology , Polysaccharides/pharmacology , Starch/pharmacology , Water/pharmacology
3.
Article in Chinese | WPRIM | ID: wpr-942331

ABSTRACT

ObjectiveTo study the effects of Toddalia asiatica alcohol extract on autophagy and apoptosis of non-small cell lung cancer A549 cells, and to explore its possible mechanism. MethodA549 cells were cultured in vitro. Cell counting kit-8 (CCK-8) was used to detect the proliferation of A549 cells, and cell survival rate was calculated to screen the drug concentration. The apoptosis in each dose group and that after the use of 3-methyladenine (3-MA), an autophagy inhibitor, were detected by flow cytometry combined with Annexin V-FITC/PI double staining. Western blot was used to detect the expression levels of apoptosis-related proteins such as B cell lymphocytoma-2(Bcl-2), Bcl-2-associated X protein(Bax), microtubule-associated protein 1 light chain 3 (LC3), cleaved cysteinyl aspartate-specific protease-3 (cleaved Caspase-3), activated poly (Adenosine diphosphate) ribonucleotide polymerase (cleaved PARP1), PARP1, activated death activator (t-Bid), Bid, and ubiquitin-binding protein p62 in each group and those after the use of 3-MA. ResultCompared with the conditions in the control group, the cell survival rate in 0.25 g·L-1 group (P<0.05), and 0.5, 1, 2, 4 g·L-1 groups (P<0.01) was decreased after 24 h intervention. Additionally, the cell survival rate was reduced in a concentration-dependent manner at 48 h and it was less than 10% at 4 g·L-1 (P<0.01). Compared with the conditions in the control group, the total apoptosis rate in 0.5 g·L-1 group was increased (P<0.05), and the apoptosis rate in 1 and 2 g·L-1 groups was also increased (P<0.01). Compared with the 2 g·L-1 group and 3-MA group, the 3-MA combined with T. asiatica alcohol extract had significantly decreased apoptosis rate (P<0.01). Compared with the conditions in the control group, elevated expression of pro-apoptotic proteins cleaved PARP1, Bax and t-Bid in 1 and 2 g·L-1 groups (P<0.05, P<0.01), and reduced expression of Bid in the 2 g·L-1 group (P<0.01) were found. Compared with the conditions in the control group, the expression of anti-apoptotic protein Bcl-2 (P<0.05, P<0.01) and the level of p62 (P<0.01) were down-regulated in 0.5, 1, 2 g·L-1 groups, while the level of LC3 Ⅱ protein was up-regulated (P<0.01), with certain concentration dependence. ConclusionT. asiatica alcohol extract could significantly inhibit the proliferation of A549 cells, which might be related to promoting autophagy and inducing apoptosis.

4.
Article in Chinese | WPRIM | ID: wpr-941037

ABSTRACT

OBJECTIVE@#To observe the effect of mibefradil on skeletal muscle mass, function and structure in obese mice.@*METHODS@#Fifteen 6-week-old C57BL/6 mice were randomized equally into normal diet group (control group), high-fat diet (HFD) group and high-fat diet +mibefradil intervention group (HFD +Mibe group). The grip strength of the mice was measured using an electronic grip strength meter, and the muscle content of the hindlimb was analyzed by X-ray absorptiometry (DXA). Triglyceride (TG) and total cholesterol (TC) levels of the mice were measured with GPO-PAP method. The cross-sectional area of the muscle fibers was observed with HE staining. The changes in the level of autophagy in the muscles were detected by Western blotting and immunofluorescence assay, and the activation of the Akt/mTOR signaling pathway was detected with Western blotting.@*RESULTS@#Compared with those in the control group, the mice in HFD group had a significantly greater body weight, lower relative grip strength, smaller average cross sectional area of the muscle fibers, and a lower hindlimb muscle ratio (P < 0.05). Immunofluorescence assay revealed a homogenous distribution of LC3 emitting light red fluorescence in the cytoplasm in the muscle cells in HFD group and HFD+Mibe group, while bright spots of red fluorescence were detected in HFD group. In HFD group, the muscular tissues of the mice showed an increased expression level of LC3 II protein with lowered expressions of p62 protein and phosphorylated AKT and mTOR (P < 0.05). Mibefradil treatment significantly reduced body weight of the mice, lowered the expression level of p62 protein, and increased forelimb grip strength, hindlimb muscle ratio, cross-sectional area of the muscle fibers, and the expression levels of LC3 II protein and phosphorylated AKT and mTOR (P < 0.05).@*CONCLUSION@#Mibefradil treatment can moderate high-fat diet-induced weight gain and improve muscle mass and function in obese mice possibly by activating AKT/mTOR signal pathway to improve lipid metabolism and inhibit obesityinduced autophagy.


Subject(s)
Animals , Body Weight , Diet, High-Fat , Mibefradil/metabolism , Mice , Mice, Inbred C57BL , Mice, Obese , Muscle, Skeletal/metabolism , Proto-Oncogene Proteins c-akt/metabolism , TOR Serine-Threonine Kinases/metabolism
5.
Protein & Cell ; (12): 490-512, 2022.
Article in English | WPRIM | ID: wpr-939864

ABSTRACT

LIN28 is an RNA binding protein with important roles in early embryo development, stem cell differentiation/reprogramming, tumorigenesis and metabolism. Previous studies have focused mainly on its role in the cytosol where it interacts with Let-7 microRNA precursors or mRNAs, and few have addressed LIN28's role within the nucleus. Here, we show that LIN28 displays dynamic temporal and spatial expression during murine embryo development. Maternal LIN28 expression drops upon exit from the 2-cell stage, and zygotic LIN28 protein is induced at the forming nucleolus during 4-cell to blastocyst stage development, to become dominantly expressed in the cytosol after implantation. In cultured pluripotent stem cells (PSCs), loss of LIN28 led to nucleolar stress and activation of a 2-cell/4-cell-like transcriptional program characterized by the expression of endogenous retrovirus genes. Mechanistically, LIN28 binds to small nucleolar RNAs and rRNA to maintain nucleolar integrity, and its loss leads to nucleolar phase separation defects, ribosomal stress and activation of P53 which in turn binds to and activates 2C transcription factor Dux. LIN28 also resides in a complex containing the nucleolar factor Nucleolin (NCL) and the transcriptional repressor TRIM28, and LIN28 loss leads to reduced occupancy of the NCL/TRIM28 complex on the Dux and rDNA loci, and thus de-repressed Dux and reduced rRNA expression. Lin28 knockout cells with nucleolar stress are more likely to assume a slowly cycling, translationally inert and anabolically inactive state, which is a part of previously unappreciated 2C-like transcriptional program. These findings elucidate novel roles for nucleolar LIN28 in PSCs, and a new mechanism linking 2C program and nucleolar functions in PSCs and early embryo development.


Subject(s)
Animals , Cell Differentiation , Embryo, Mammalian/metabolism , Embryonic Development , Mice , Pluripotent Stem Cells/metabolism , RNA, Messenger/genetics , RNA, Ribosomal , RNA-Binding Proteins/metabolism , Transcription Factors/metabolism , Zygote/metabolism
6.
Article in Chinese | WPRIM | ID: wpr-934208

ABSTRACT

Objective:To summarize the surgical treatment experience of extended thymectomy for myasthenia gravis(MG), and to explore the surgical treatment of MG.Methods:Retrospectively analyzed the clinical data of 527 MG patients undergoing extended thymectomy in our hospital from June 1996 to October 2017, including 242 males and 285 females, aged 5 to 77 years, with a mean age of(52.6±13.7) years old. The course of illness was 12 days to 18 years. There were 22 cases of hyperthyroidism, 7 cases of pure red blood cell aplastic anemia, 1 case each of hypothyroidism, irritable bowel disease, rheumatoid arthritis, ankylosing spondylitis and thrombocytopenia syndrome. There were 272 cases of MG in Osserman Ⅰ, 72 cases inⅡa, 78 cases inⅡb, 81 cases in Ⅲ, and 24 cases in Ⅳ, respectively. The muscle fatigue test and neostigmine test of all patients were positive, and the diagnosis was confirmed by chest CT examination. Meanwhile, summarize the perioperative data and postoperative follow-up.Results:3 cases died during the postoperative period, all of which were thymoma with MG, including 2 cases of Osserman Ⅲ MG and 1 case of Ⅳ MG; 15 cases of postoperative myasthenia crisis, including 2 OssermanⅡb cases, 11 Osserman Ⅲ cases and 2 Osserman Ⅳ cases, also including 7 cases of tracheotomy; 70 cases of plasma exchange, of whom 2 cases of hypotonic syndrome and 2 cases of lower extremity venous thrombosis. The postoperative pathological types were followed by thymic hyperplasia 293 cases(55.60%), thymoma 207 cases(39.28%), thymic cyst 24 cases(4.55%) and thymic atrophy 3 cases(0.57%) in descending order. 378 cases were followed up with an average follow-up of(85.9±58.5)months; MG with complete remission, partial remission, no change and deterioration accounted for 135(35.71%), 192(50.79%), 41(10.85%) and 10(2.65%)cases, respectively. Complete remission rate ranked as Osserman typeⅠ>Ⅱa>Ⅳ>Ⅱb>Ⅲ, the deterioration rate from high to low was Osserman type Ⅲ>Ⅳ>Ⅰ. 18 OssermanⅠcases showed no effects, whose preoperative course of disease> 5-10 years; 1 OssermanⅠcase was worsening who initially was diagnosed with ophthalmic MG and underwent video-assisted thoracoscopic thymectomy. The left thymus lobe was left unresected and developed 6 years later. Another operation was performed to remove the left lobe thymus, confirming the compensatory hypertrophy of the left lobe thymus. Among the worsening patients, 6 died, all of them were thymoma with MG, including 5 cases of type Ⅲ and one case of type Ⅳ. The cause of death was omyasthenia crisis(3 cases), sudden respiratory arrest after 3 months of rapid stopping of brompistigmine(2 cases)and cholinergic crisis(1 case).Conclusion:Standardized extended thymectomy is an effective method for the treatment of MG. Earlier surgery for ocular muscle type MG can effectively reduce the risk of generalization. MG with Osserman Ⅱb or higher is prone to myasthenia crisis. Comprehensive treatments should be taken to reduce MG-related risks. Myasthenia crisis can occur repeatedly in severe patients in the long term after surgery, requiring regular medication and comprehensive MG treatments.

7.
Chinese Journal of Geriatrics ; (12): 320-324, 2022.
Article in Chinese | WPRIM | ID: wpr-933080

ABSTRACT

Objective:To understand the status of knowledge, attitude and practice of metabolic syndrome(MS) among the elderly in the community and analyze its influencing factors, so as to provide guidance for the prevention and treatment of MS.Methods:From January 2021 to August 2021, permanent residents(residence duration ≥6 months)aged 65 and above with regular health check examination in Fangzhuang Community Health Service Center of Fengtai District, Beijing were investigated using self-designed MS knowledge, attitude and practice questionnaire.After excluding 34 incomplete questionnaires, the 491 valid questionnaires were recycled with questionnaire valid percentage of 93.5%(491/525). The survey results were analyzed by descriptive analysis, Mann-Whitney U test, Kruskal-Wallis H test and multiple linear regression analysis and multiple linear regression.Results:The scores of MS knowledge, attitude and practice of the elderly in the community were 7(5, 10), 9(8, 10)and 19(18, 21)respectively.The correct answer rate of the diagnostic criteria of MS components was less than 50%.The score of knowledge about MS in the elderly was positively correlated with the scores of attitudes( r=0.263)and practice( r=0.134)(all P<0.01). The results of univariate and multiple linear regression analysis showed that gender, attending educational lectures and the prevalence of MS were the influencing factors of MS knowledge score(all P<0.05). Leisure time, attending educational lectures, pre-retirement occupation and regular health check examination were the influencing factors for MS attitude score(all P<0.05); attending educational lectures, leisure time, regular health check examination and pre-retirement occupation were the influencing factors for MS practice score(all P<0.05). Conclusions:The elderly in the community have a low level of knowledge about the components and diagnostic criteria of MS, but have a positive attitude and practice towards the prevention and treatment of MS.The level of knowledge, attitude and practice of MS is affected by health education lectures, occupation, regular health check examination and other factors.Health education on the diagnostic criteria and the awareness of disease prevention for the elderly in the community should be strengthened to improve the levels of the knowledge, attitude and practice of MS.

8.
Article in Chinese | WPRIM | ID: wpr-932972

ABSTRACT

Objective:To analyze the health literacy level among medical staff and its influencing factors.Methods:Using the convenient sampling method, the in-service medical staff from four medical institutions (Shanghai Pudong New Area People′s Hospital, Shanghai Pudong New Area Zhoupu Hospital, Shanghai Tenth People′s Hospital Chongming Branch, and Shanghai Jing′an District Zhabei Central Hospital) were administered with a national residents′ health literacy questionnaire uniformly compiled by the China Health Education Center, and an electronic questionnaire independently compiled in combination with professional characteristics of the medical staff. The survey period was January 5-17, 2021. The contents of the questionnaire included basic information regarding gender, age, education, and professional title. Respondents were also asked whether they had chronic diseases, and three aspects of health literacy for basic knowledge and concepts, healthy lifestyle and behavior and health skills covering six other types of health problems including scientific outlook on health, infectious disease prevention and control literacy, chronic disease prevention and control. Safety and first aid literacy, basic medical literacy, health information literacy were also assessed. The total score for the questionnaire was 100 points. Respondents with a score of 80 or more were considered to have a competent health literacy. A total of 870 questionnaires were distributed, excluding incomplete ones, 826 valid questionnaires were used for analysis. Logistic regression was used to analyze factors influencing the health literacy among medical staff.Results:The overall health literacy level of medical staff was 64.0%, with 79.7% of respondents indicating that they had basic knowledge and concepts, 70.8% indicating that they practiced healthy lifestyles and behaviors, and 33.5% showed proficiencies in terms of health skills. From high to low, the health literacy levels for the six types of health problems were safety and first aid literacy (80.5%), scientific outlook on health (76.4%), infectious disease prevention and control literacy (60.2%), chronic disease prevention and control literacy (70.9%), basic medical literacy (52.7%), and health information literacy (50.2%). The results of a multivariate logistic regression analysis showed that physical condition, a lifestyle harmful to one′s health, highest educational background, and a professional title in the previous year were the independent influencing factors related to health literacy ( P<0.05). Conclusion:Levels of health skills, basic medical literacy, and health information literacy among medical staff are low, and physical condition in the previous year, lifestyle, professional title, and education are important factors influencing the level of health literacy among medical staff.

9.
Article in Chinese | WPRIM | ID: wpr-932749

ABSTRACT

In recent years, chimeric antigen receptor-modified T-cell (CAR-T) immunotherapy, as a new idea of tumor immunotherapy, has been proved to be effective in hematological diseases. More and more studies have been focusing on this field. At present, some progress have been made in the treatment of hepatocellular carcinoma with CAR-T, but some problems such as solid tumor inherent barrier, tumor microenvironment, immune escape and specific tumor associated antigens still need to be further figure out. Nevertheless, CAR-T immunotherapy will provide a more cutting-edge treatment for hepatocellular carcinoma immunotherapy. In addition, the combination of CAR-T and other methods may also be the direction to be explored in the next step.

10.
International Journal of Surgery ; (12): 57-62,F4, 2022.
Article in Chinese | WPRIM | ID: wpr-929969

ABSTRACT

Glioma has a high malignant degree, high recurrence rate and poor prognosis. We analyzed signal pathway of the Hippo/YAP, PI3K/AKT/mTOR, miRNA, WNT/β-catenin, Notch, Hedgehog, TGF-β and the mechanism of key enzymes in glioma. It is concluded that YAP1 inhibitor may become an effective target for the treatment of glioma in the future.Inhibiting PI3K/AKT/mTOR, Shh, Wnt/β-Catenin and HIF-1α can reduce the migration ability and drug resistance of tumor cells to improve the prognosis of glioma. The analysis shows that Notch1 and Sox2 have a positive feedback regulation mechanism, and Notch4 predicts the malignant degree of glioma. In this way, notch can not only be treated for glioma stem cells in clinic, but also be used as an evaluation index to evaluate the prognosis, and provide an exploratory attempt for the direction of glioma treatment. MiRNA plays an important role in diagnosis, and in the treatment of glioma, it can play a further role with the delivery of nanoparticles and TMZ. It is believed that these studies will help us to have a deeper understanding of glioma, so that we will find new and better treatment schemes to gradually conquer the problem of glioma.

11.
Article in Chinese | WPRIM | ID: wpr-928089

ABSTRACT

Bombesin receptor subtype-3(BRS-3) is an orphan receptor in the bombesin receptor family. Its signal transduction mechanism and biological function have attracted much attention. Seeking the ligand for BRS-3 is of great significance for exploring its function. Considering the fact that the activation of BRS-3 receptor can induce the change in intracellular Ca~(2+) concentration, the fluo-rometric imaging plate reader(FLIPR) was utilized for ligand screening at the cellular level. Among more than 400 monomeric compounds isolated from Chinese herbs, yuanhunine from Corydalis Rhizoma and sophoraisoflavanone A and licoriphenone from Glycyrrhizae Radix et Rhizoma antagonized BRS-3 to varying degrees. It was confirmed in HEK293 cells expressing BRS-3 that yuanhunine, sophoraisoflavanone A, and licoriphenone inhibited the calcium current response after the activation of BRS-3 by [D-Phe~6,β-Ala~(11),Phe~(13),Nle~(14)]bombesin-(6-14) in a dose-dependent manner with the IC_(50) values being 8.58, 4.10, and 2.04 μmol·L~(-1), respectively. Further study indicated that yuanhunine and sophoraisoflavanone A exhibited good selectivity for BRS-3. In this study, it was found for the first time that monomers derived from Chinese herbs had antagonistic activity against orphan receptor BRS-3, which has provided a tool for further study of BRS-3 and also the potential lead compounds for new drug discovery. At the same time, it provides reference for the research and development of innovative drugs based on the active ingredients of Chinese herbs.


Subject(s)
Drugs, Chinese Herbal/chemistry , HEK293 Cells , Humans , Ligands , Receptors, Bombesin
12.
Article in Chinese | WPRIM | ID: wpr-928049

ABSTRACT

The present study investigated the effect of Euphorbiae Pekinensis Radix(EPR) on intestinal flora structure before and after vinegar processing and explored the detoxification mechanism of vinegar-processed EPR. In this study, the extraction efficiency of casbane diterpenes from EPR with different solvents was investigated, and the optimal solvent was selected to enrich these components. After 14 days of intragastric administration of total diterpene extract of EPR and vinegar-processed EPR, 16 S rDNA sequencing technology was used to detect the structural changes of intestinal flora. The flora related to the intestinal toxicity of EPR was screened out based on the results of intestinal pathological damage by correlation analysis. The results showed that Soxhlet extraction with chloroform as extraction solvent could enrich Casbane diterpenes in EPR. As revealed by 16 S rDNA sequencing results, EPR could significantly change the structure of intestinal flora, which could be reversed by vinegar-processing EPR. Some intestinal flora candidates might be related to detoxification of vinegar processing. The correlation analysis of intestinal flora candidates and indexes related to intestinal mucosal injury showed that compared with EPR, vinegar-processed EPR could down-regulate the abundance of some pathogenic bacteria such as Mucispirillum, Bilophila, and Ruminiclostridium, and up-regulated some probiotics such as Enterorhabdus, Ruminococcaceae_UCG-014, Barnesiella, and Candidatus. The intestinal toxicity caused by EPR may be related to the disturbance of intestinal flora, and vinegar-processed EPR can improve intestinal flora disorder by up-regulating the abundance of probiotics and down-regulating the abundance of pathogenic bacteria to remodel the intestinal mucosal barrier and reduce toxicity.


Subject(s)
Acetic Acid/chemistry , Colon , Drugs, Chinese Herbal/chemistry , Gastrointestinal Microbiome , Plant Roots
13.
Article in Chinese | WPRIM | ID: wpr-927970

ABSTRACT

Technical Specifications for Revision of Safety Information in Marketed Chinese Patent Medicine Instructions,a series of group standards,were proposed by Professor ZHANG Bing from Research Center for Pharmacovigilance and Rational Use of Traditional Chinese Medicine,and underwent centralized management by Chinese Association of Chinese Medicine. They were officially released on July 23 and implemented on July 31,2021. The series of group standards consist of six sections,including general principles,adverse drug events,contraindications,precautions,application for special populations,and warnings. The section of general principles is comprised of holistic and programmatic expressions,which explain the general technical requirements for revising the marketed Chinese patent medicine instructions. The other five sections focus on information collection,screening,transformation,and illustration of specific items,forming a standardized revision technical process. This series of standards is the result of multiple rounds of research and the suggestions of more than 200 experts in different professional fields of " medicine-pharmacy-management-law-enterprise" have been gathered therein to reach a consensus. With the purposes of establishing standardized technical specifications for the revision of safety information in the marketed Chinese patent medicine instructions,guiding marketing authorization holders in revising the instructions,filling the gaps in the research of Chinese patent medicine instructions,promoting the deve-lopment of pharmaceutical care and academic research,and encouraging the rational and safe medication of Chinese patent medicine,the series of group standards is of great significance.


Subject(s)
China , Drug-Related Side Effects and Adverse Reactions , Drugs, Chinese Herbal/adverse effects , Humans , Medicine, Chinese Traditional , Nonprescription Drugs/adverse effects , Pharmacovigilance
14.
Article in Chinese | WPRIM | ID: wpr-927969

ABSTRACT

Drug instructions,the statutory and technical documents recording effectiveness and safety information,are an important basis for guiding doctors,pharmacists,and patients to use drugs rationally,and their scientificity,standardization,and accuracy directly affect the medication safety of the public. The sections of adverse drug events,contraindications,precautions,warnings,and application for specific populations in drug instructions directly express safety information and measures for rational use of drugs. In the drug life cycle,marketing authorization holders( MAHs) need to update safety information in the instructions promptly to ensure the safety and effectiveness of clinical drug medication. At present,revising instructions is an important measure to control drug risks. In the drug life cycle,in order to standardize the revision of safety information in the instructions by MAHs and eliminate inexact terms such as " unclear",the Technical Specifications for Revision of Safety Information in Marketed Chinese Patent Medicine Instructions,a series of group standards,have been established under the guidance of Standardization Department,China Association of Chinese Medicine. Therefore,on the basis of the existing rules and regulations,the standardized technical procedures for revising instructions came into being to help clinical safe and rational medication of drugs,and implement the strategy of " Healthy China".


Subject(s)
China , Drug-Related Side Effects and Adverse Reactions , Drugs, Chinese Herbal/adverse effects , Humans , Medicine, Chinese Traditional , Nonprescription Drugs/adverse effects , Reference Standards
15.
China Pharmacy ; (12): 1448-1454, 2022.
Article in Chinese | WPRIM | ID: wpr-927191

ABSTRACT

OBJECTIVE To in vestigate inhibitory effect s of gallic acid (GA)on human esophageal cancer TE- 1 cells in vitro and its potential mechanism. METHODS The effects of GA on the proliferation of TE- 1 cells were determined by MTT assay after treated with GA for 24 h and 48 h. Cell fluorescence counting (CCK-F)method and inverted fluorescence microscope were used to observe the changes in the number and morphology of TE- 1 cells after treated with GA. The change of cell migration ability was detected by scratch test. The effects of GA on the colony-forming ability of TE- 1 cells were tested by plate colony formation experiment. Cell apoptosis was detected by flow cytometry. Fluorescence probe (DCFH-DA)method was used to observe reactive oxygen species (ROS)production. Western blot assay was used to detect the expression of caspase- 3,caspase-9,Bcl-2,Bcl-2 associated X protein (Bax),cyclin D 1 and cyclin D 3. RESULTS GA significantly reduced the proliferation ability of TE- 1 cells in time and concentration dependent manner. the IC 50 of GA to TE- 1 cells were (281.22±26.81)μmol/L(24 h)and(220.90±31.15) μ mol/L(48 h),respectively. Compared with control group ,the cells in the administration group showed shrinkage ,sparse arrangement and nuclear pyknosis ,and the number of cells decreased significantly. Compared with control group ,the cell migration ability and colony formation ability were decreased significantly in administration groups (P<0.01 or P<0.05). The apoptosis rates of TE- 1 cells were (6.21±0.32)%,(12.59±0.58)% and(15.41±0.41)% after treated with 100,300 and 500 μmol/L GA for 24 h,all of which were significantly higher than (5.29±0.28)% of control group (P<0.01 or P<0.05). Except for GA 100 μmol/L group,the level of ROS in other administration groups were significantly increased (P<0.01 or P<0.05). Compared with control group,the expressions of Bcl- 2(only GA 200 μmol/L group),Bax(except for GA 100 μmol/L),caspase-3 and caspase- 9(except for GA 100 μmol/L)were increased significantly (P<0.01 or P<0.05),while the protein expressions of Bcl- 2(except GA 100, 200 μmol/L group),cyclin D 1 and cyclin D 3 were significantly decreased (P<0.01 or P<0.05). CONCLUSIONS GA can inhibit the proliferation of esophageal cancer TE- 1 cells, E-mail:1209364115@qq.com restrict their migration ability and colony-forming ability ,and promote apoptosis. The mechanism may be related to the increase of ROS level ,up-regulation of the expressions of pro-apoptotic proteins caspase- 3,caspase-9 and Bax ,and down-regulation of the expressions of anti-apoptotic protein Bcl- 2,cyclin D1 and cyclin D 3.

16.
Acta Pharmaceutica Sinica ; (12): 1429-1439, 2022.
Article in Chinese | WPRIM | ID: wpr-924764

ABSTRACT

Synephrine is a natural small-molecule alkaloid found in Aurantii fructus immaturus with versatile biological activities, but its derivatives have been rarely studied so far. Based on the multi-target drug design strategy, the phenolic hydroxyl and secondary amino group of synephrine were modified structurally by the molecular splicing method in this study and thus five intermediates and fifteen target molecules were designed and synthesized. These compounds were evaluated with certain human pathogenic bacteria and fungi, and found that the inhibitory activities of IM4 and IM5 against E.coli are comparable to those of eight fluoroquinolones; TM1n showed stronger inhibitory activity against drug-resistant C. trobicans and drug-resistant C. albicans than the positive control drug fluconazole. TM1d and TM1f against C. albicans ATCC90023, TM1o and TM1f against drug-resistant C. albicans, and TM1f against C. parapsilosis ATCC22019 are all comparable to fluconazole, all of which have the potential for in-depth research. In this study, synephrine derivatives with strong inhibitory activities against human pathogenic fungi were discovered for the first time, which provided a new idea for the further study of synephrine.

17.
Article in English | WPRIM | ID: wpr-922356

ABSTRACT

PURPOSE@#To investigate the clinical value of urine interleukin-18 (IL-8), neutrophil gelatinase-associated lipocalin (NGAL) and kidney injury molecule-1 (KIM-1) for the early diagnosis of acute kidney injury (AKI) in patients with ureteroscopic lithotripsy (URL) related urosepsis.@*METHODS@#A retrospective study was carried out in 157 patients with urosepsis after URL. The patients were divided into AKI group and non-AKI group according to the Kidigo guideline and urine IL-8, NGAL and KIM-1 levels were detected by enzyme-linked immunosorbent assay at 0, 4, 12, 24 and 48 h after the surgery. Receiver operating characteristic curve (ROC) was used to evaluate the diagnostic value of these three biomarkers for postoperative AKI.@*RESULTS@#The level of urine IL-8, NGAL and KIM-1 in AKI group was significantly higher than that in non-AKI group at 4, 12, 24 and 48 h (p < 0.01). The ROC analysis showed the combined detection of urine IL-8, NGAL and KIM-1 at 12 h had a larger area under curve (AUC) than a single marker (0.997, 95% CI: 0.991-0.998), and the sensitivity and specificity were 98.2% and 96.7%, respectively. Pearson correlation analysis showed that the levels of urine NGAL at 4, 12, 24 and 48 h in AKI patients were positively correlated with the levels of urine KIM-1 and IL-18 (p < 0.01).@*CONCLUSION@#AKI could be quickly recognized by the elevated level of urine IL-8, NGAL and KIM-1 in patients with URL-related urosepsis. Combined detection of the three urine biomarkers at 12 h after surgery had a better diagnostic performance, which may be an important reference for the early diagnosis of AKI.


Subject(s)
Acute Kidney Injury/etiology , Biomarkers , Early Diagnosis , Hepatitis A Virus Cellular Receptor 1 , Humans , Interleukin-18 , Interleukin-8 , Lipocalin-2 , Lithotripsy , Retrospective Studies , Ureteroscopy
18.
Article in Chinese | WPRIM | ID: wpr-880165

ABSTRACT

OBJECTIVE@#To investigate the biological function of Cysteine rich (CysR) domain of a disintegrin and metalloprotease with thrombospondin type 1 repeats-13 (ADAMTS13) on cleavage of von Willebrand factor (vWF) and provide experimental evidence for exploring the pathogenesis of thrombotic thrombocytopenic purpura (TTP).@*METHODS@#The six amino acids (EDGTLS) in ADAMTS13 CysR domain were point mutated one by one, and the mutant ADAMTS13 proteins were expressed and purified. The cleavage products of vWF polymer by wild-type or mutant ADAMTS13 under denaturing condition or shear stress were separated by 1% SeaKem HGT agarose gel and detected by Western blot.@*RESULTS@#The mutant ADAMTS13 plasmids (M1: Glu515Ala; M2: Asp516Ala; M3: Gly517Ala; M4: Thr518Ala; M5: Leu519Ala; M6: Ser520Ala) were successfully constructed and the proteins of wild-type and mutant ADAMTS13 were purified. Wild-type ADAMTS13 almost completely cleaved the vWF polymer under denaturing condition, while the cleavage activity of M1 mutant was significantly reduced in the same condition (P<0.01). The cleavage activity of M1 mutant of ADAMTS13 was also significantly reduced compared with that of the wild-type under shear stress (P<0.01). The activity of M1 mutant to cleave the FRETS-vWF73 was dramatically reduced compared with that of wild-type ADAMTS13. However, the binding ability of M1 mutant to vWF was similar with that of wild-type ADAMTS13.@*CONCLUSION@#The CysR domain of ADAMTS13 plays an important role in the digestion of vWF under denaturing condition and shear stress. The Glu515 amino acid residue might be an important site for substrate recognition.


Subject(s)
ADAM Proteins , ADAMTS13 Protein/genetics , Humans , Purpura, Thrombotic Thrombocytopenic/genetics , von Willebrand Factor/genetics
19.
Article in Chinese | WPRIM | ID: wpr-921713

ABSTRACT

This study investigated the material basis and mechanism of Pinelliae Rhizoma Decoction in the treatment of airway inflammation. The cigarette smoke combined with lipopolysaccharide(LPS) was used to induce an airway inflammation model in mice. The expression levels of IL-6 and IL-8 in the bronchoalveolar lavage fluid(BALF) and the phosphorylation levels of p38 and IκB in the lungs of mice were taken as indexes to screen the effective extracts by system solvent extraction from Pinelliae Rhizoma Decoction(dichloromethane extract, ethyl acetate extract, n-butanol extract, etc.). Meanwhile, the human bronchial epithelial(16-HBE) cell model of cigarette smoke extract(CSE)-induced injury was established, and the mRNA expression levels of IL-6 and IL-8 and the phosphorylation levels of p38 and IκB proteins were also taken as indexes to evaluate the anti-inflammatory effect of different extracts of Pinelliae Rhizoma Decoction. The results showed that Pinelliae Rhizoma Decoction significantly antagonized airway inflammation in mice by down-regulating the expression levels of IL-6 and IL-8 in mice with airway inflammation and 16-HBE cells with CSE-induced injury and inhibiting the phosphorylation levels of p38 and IκB. The dichloromethane and ethyl acetate extracts of Pinelliae Rhizoma Decoction showed significant anti-inflammatory effects, while such effects of other extracts were not prominent. Furthermore, the database of Pinelliae Rhizoma composition was constructed, and the components in effective extracts were analyzed by HPLC-TOF-MS and Nano-LC-MS/MS. As revealed by the results, the compositions of the two effective extracts were similar with 36 common components. They were combined and then divided into Pinelliae Rhizoma alkaloids(PTAs) and Pinelliae Rhizoma non-alkaloids(PTNAs) by 732 cation-exchange resin. Further in vitro investigation confirmed the significant anti-inflammatory effect of PTNAs, while such effect of PTAs was not manifest. The MS analysis showed 172 peptides and 7 organic acids in PTNAs. The peptide content in PTNAs was 63.5% measured by quantitative analysis of BCA assay, and the organic acid content was 9.92% by potentiometric titration method. The findings of this study suggested that Pinelliae Rhizoma Decoction could antagonize airway inflammation in mice by inhibiting phosphorylation of p38 and IκB and blocking the activation of MAPK and NF-κB signaling pathways, and the effective components were related to the peptides and organic acids in PTNAs. The above results lay a foundation for the research on the mechanism and material basis of Pinelliae Rhizoma in antagonizing airway inflammation.


Subject(s)
Animals , Drugs, Chinese Herbal/pharmacology , Inflammation/drug therapy , Mice , NF-kappa B/genetics , Pinellia/chemistry , Respiratory Tract Diseases/drug therapy , Rhizome , Tandem Mass Spectrometry
20.
Chinese Medical Journal ; (24): 2788-2798, 2021.
Article in English | WPRIM | ID: wpr-921187

ABSTRACT

A massive depletion of CD4+ T lymphocytes has been described in early and acute human immunodeficiency virus (HIV) infection, leading to an imbalance between the human microbiome and immune responses. In recent years, a growing interest in the alterations in gut microbiota in HIV infection has led to many studies; however, only few studies have been conducted to explore the importance of oral microbiome in HIV-infected individuals. Evidence has indicated the dysbiosis of oral microbiota in people living with HIV (PLWH). Potential mechanisms might be related to the immunodeficiency in the oral cavity of HIV-infected individuals, including changes in secretory components such as reduced levels of enzymes and proteins in saliva and altered cellular components involved in the reduction and dysfunction of innate and adaptive immune cells. As a result, disrupted oral immunity in HIV-infected individuals leads to an imbalance between the oral microbiome and local immune responses, which may contribute to the development of HIV-related diseases and HIV-associated non-acquired immunodeficiency syndrome comorbidities. Although the introduction of antiretroviral therapy (ART) has led to a significant decrease in occurrence of the opportunistic oral infections in HIV-infected individuals, the dysbiosis in oral microbiome persists. Furthermore, several studies with the aim to investigate the ability of probiotics to regulate the dysbiosis of oral microbiota in HIV-infected individuals are ongoing. However, the effects of ART and probiotics on oral microbiome in HIV-infected individuals remain unclear. In this article, we review the composition of the oral microbiome in healthy and HIV-infected individuals and the possible effect of oral microbiome on HIV-associated oral diseases. We also discuss how ART and probiotics influence the oral microbiome in HIV infection. We believe that a deeper understanding of composition and function of the oral microbiome is critical for the development of effective preventive and therapeutic strategies for HIV infection.


Subject(s)
Dysbiosis , Gastrointestinal Microbiome , HIV Infections/drug therapy , Humans , Microbiota , Mouth
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