Objective The aim of this study was to investigate whether downregulation of FK506 binding protein 4(FKBP4)could inhibit the malignant progression of non-small cell lung cancer(NSCLC)by blocking the PI3K/Akt/mTOR signaling pathway.Methods NSCLC A549,H1975,H358 and PC-9 cell lines,as well as human bronchial epithelial cells(HBE)were routinely cul-tured.The expression of FKBP4 in these cells was detected by qRT-PCR,and NSCLC cell lines with the most significant different ex-pression of FKBP4 compared with HBE cells was screened.FKBP4 siRNA and NC siRNA were transfected into A549 cells,which were divided into the si-FKBP4 group and NC group.CCK-8 assay was used to detect the proliferative ability of si-FKBP4 group and NC group,flow cytometry was used to detect the apoptosis rate,scratch healing assay was used to detect the migration ability,Transwell assay was used to detect the invasion ability,and Western blot was used to detect the total and phosphorylation protein expression of PI3K and its downstream effectors Akt and mTOR.Results The expression of FKBP4 in A549 cells,H1975 cells,H358 cells and PC-9 cells were significantly higher than those in HBE cells(P<0.05),and its expression in A549 cells was the highest(P<0.001).Downregulation of FKBP4 could inhibit the proliferation,invasion and migration of A549 cells and promote the apoptosis of A549 cells(P<0.001).In addition,downregulation of FKBP4 also could inhibit the phosphorylation of PI3K,Akt and mTOR,resulting in bloc-king the PI3K/Akt/mTOR signaling pathway.Conclusion Downregulation of FKBP4 can inhibit the proliferation,invasion and mi-gration of NSCLC cells by blocking the PI3K/Akt/mTOR signaling pathway,and promote the apoptosis of NSCLC cells.

Objective:To summarize the tools and applications of functionality appreciation assessment.Methods:A computerized search was conducted in PubMed, Web of Science, Cochrane Library, Embase, China National Knowledge Infrastructure, Wanfang Data, VIP, and China Biology Medicine disc for literature related to functionality appreciation assessment tools and their applications, with the time frame from database inception to May 12, 2024.Results:A total of 26 articles were included. Functionality appreciation was found to be associated with demographic, physiological, psychological, and social health factors. Functionality appreciation assessment tools demonstrated good psychometric properties across different cultural backgrounds and populations.Conclusions:Functionality appreciation exerts multidimensional benefits on physical and psychological health. However, the available functionality appreciation assessment tools are limited in variety. Future research should further explore the applicability of these tools in different populations in China.

Objective:To summarize the tools and applications of functionality appreciation assessment.Methods:A computerized search was conducted in PubMed, Web of Science, Cochrane Library, Embase, China National Knowledge Infrastructure, Wanfang Data, VIP, and China Biology Medicine disc for literature related to functionality appreciation assessment tools and their applications, with the time frame from database inception to May 12, 2024.Results:A total of 26 articles were included. Functionality appreciation was found to be associated with demographic, physiological, psychological, and social health factors. Functionality appreciation assessment tools demonstrated good psychometric properties across different cultural backgrounds and populations.Conclusions:Functionality appreciation exerts multidimensional benefits on physical and psychological health. However, the available functionality appreciation assessment tools are limited in variety. Future research should further explore the applicability of these tools in different populations in China.

Objective The aim of this study was to investigate whether downregulation of FK506 binding protein 4(FKBP4)could inhibit the malignant progression of non-small cell lung cancer(NSCLC)by blocking the PI3K/Akt/mTOR signaling pathway.Methods NSCLC A549,H1975,H358 and PC-9 cell lines,as well as human bronchial epithelial cells(HBE)were routinely cul-tured.The expression of FKBP4 in these cells was detected by qRT-PCR,and NSCLC cell lines with the most significant different ex-pression of FKBP4 compared with HBE cells was screened.FKBP4 siRNA and NC siRNA were transfected into A549 cells,which were divided into the si-FKBP4 group and NC group.CCK-8 assay was used to detect the proliferative ability of si-FKBP4 group and NC group,flow cytometry was used to detect the apoptosis rate,scratch healing assay was used to detect the migration ability,Transwell assay was used to detect the invasion ability,and Western blot was used to detect the total and phosphorylation protein expression of PI3K and its downstream effectors Akt and mTOR.Results The expression of FKBP4 in A549 cells,H1975 cells,H358 cells and PC-9 cells were significantly higher than those in HBE cells(P<0.05),and its expression in A549 cells was the highest(P<0.001).Downregulation of FKBP4 could inhibit the proliferation,invasion and migration of A549 cells and promote the apoptosis of A549 cells(P<0.001).In addition,downregulation of FKBP4 also could inhibit the phosphorylation of PI3K,Akt and mTOR,resulting in bloc-king the PI3K/Akt/mTOR signaling pathway.Conclusion Downregulation of FKBP4 can inhibit the proliferation,invasion and mi-gration of NSCLC cells by blocking the PI3K/Akt/mTOR signaling pathway,and promote the apoptosis of NSCLC cells.

There are some shortcomings of animal experiments applied in chemical toxicity testing, such as long period, large cost, species differences and dose differences, which limit the use of animal experiments' results in predicting human toxicity.Accordingly, we established a toxicity testing alternative screening system in line with the toxicity endpoints which required in chemical safety evaluation and risk assessment (genotoxicity, carcinogenicity, reproductive toxicity, acute toxicity and general toxicity) based on 3R principles (replacement, reduction, refinement) for animal experiments.This system covers most of the endpoints of toxicity assessment, and molecular biology technology was also applied to integrate the toxicity test, as well as some operation was optimized in order to shorten the experimental period, reduce experimental costs, improve animal welfare.Furthermore, the results from the screening system have higher clinical relevance because it is based on the toxicity mechanisms.

Objective From knowledge,attitude,practice,and environment dimensions to investigate the status of oral health self-management in adolescents receiving fixed orthodontics and analyze its influencing factors.Methods A self-designed questionnaire developed from an evaluation index system for adolescents receiving fixed orthodontics was used to investigate 300 adolescent orthodontic patients in a stonatological hospital in Shanghai,who were 11 to 17 years old,receiving fixed orthodontics for more than three months.Results For adolescents receiving fixed orthodontics,self-management knowledge score was 0.99-±0.18,attitude score was 0.92±0.13,practice score was 1.11±0.21,and environment score was 0.66±0.15.The scores of oral health self-management knowledge,attitude,practice,and environment were significantly different between boys and girls(P＜0.01).There was significant difference in the scores of oral health self-management practice in adolescents with different age(P＜0.05).The scores of oral health selfmanagement were significantly different for adolescents with different stages of receiving fixed orthodontics(P＜0.05).Multiple stepwise regression analysis showed that oral health self-management status was affected by gender and age.Conclusion The oral health self-management status of adolescents receiving fixed orthodontics needs to be further improved.Female adolescents have better oral health self-management status than male adolescents.The increasing of age cannot necessarily improve self-management status.Orthodontic time has the greatest influence on oral health self-management practice.Medical staffs can provide targeted health education and guidance based on the status and influencing factors for adolescent orthodontic patients in order to improve their oral health self-management status.

Nine mutants (P2M1-9) were obtained using PCR with 5-BU based on DNA template (P2Y) encoding the active region of Parasporin-2. Mutant proteins were purified after expressing in E. coli BL21 cells, followed by assayed against hepatoma cells and normal liver cells by MTT. They showed diverse anti-hepatoma activities, in which two mutant proteins, P2M1 and P2M8, exhibited high cytotoxicity against hepatoma cell lines SMMC7721 and Be17402, meanwhile leaving normal liver cells Chang-liver unaffected. Structural comparison among P2Y, P2M1 and P2M8 showed that the length of beta-sheet or beta-fold, and the amount of alpha helix greatly affected the anti-hepatoma activity of Parasporin-2. Results based on amino acid alignment, molecular docking between P2Y, P2M1 or P2M8 and receptor, and mimic mutation demonstrated that amino acid residues at the sites of 52, 56, 58 and 208 on P2Y, especially the aromatic amino acids such as Trp, Phe, and Tyr were involved in the interactions.
Amino Acid Sequence ; Amino Acids, Aromatic ; biosynthesis ; genetics ; pharmacology ; Antineoplastic Agents ; pharmacology ; Carcinoma, Hepatocellular ; pathology ; Cell Line, Tumor ; Endotoxins ; chemistry ; pharmacology ; Escherichia coli ; genetics ; metabolism ; Humans ; Liver Neoplasms ; pathology ; Molecular Sequence Data ; Mutant Proteins ; pharmacology ; Recombinant Proteins ; biosynthesis ; genetics ; pharmacology

Objective To understand non stomatology undergraduates'strategies for learning stomatology and to study the reform on this course.Methods The learning strategies of 560 undergraduates majoring in clinical medicine from grade 2007 were investigated s and ten related factors like learning attitudes were investigated by learning strategies scale.Correlation analysis and linear regression analysis were applied to deal with research data.Results Most undergraduates were lack of strategies in learning stomatology.Related coefficient between 10 factors and academic scores ranged from 0.197 to 0.401,existing positive correlation(P＜0.05).Determination coefficients(R2)of attitude,motivation,time management and learning auxiliary means were 0.146,0.167,0.223and 0.122 respectively,which can be used to predict the scores of examination.Condusions Non stomatology undergraduates'strategies for learning stomatology is a vital factor influencing their academic scores.It's necessary for teachers to improve their teaching methods considering students'professional characteristics and learning strategies.