Wenpi decoction is a classic prescription published in the Catalogue of Ancient Classic Prescriptions(First Batch).By sorting out and analyzing the ancient and modern literature on Wenpi decoction,the key information of Wenpi decoction in terms of its origin,drug composition,function,dosage,processing,preparation method,decoction method,prescription meaning,main indica-tions,and clinical application was systematically verified.A total of 165 relevant ancient literature data,114 modern clinical litera-ture,and 66 ancient Chinese medical books were obtained.The inductive analysis found that Wenpi decoction was first seen in the Ex-cerpts of prescriptions of the Eastern Jin Dynasty,and Sun Simiao of the Tang Dynasty included it in the Important Formulas Worth a Thousand Gold Pieces for Emergency.The current version is based on the Wenpi decoction in Volume 15 of Important Formulas Worth a Thousand Gold Pieces for Emergency,Spleen Heat Dysentery.The formula is composed of rhubarb,ginseng,licorice,dried ginger,and aconite.The medicinal origin follows the 2020 edition of the Chinese Pharmacopoeia,with raw products of rhubarb,ginseng,and dried ginger,stir fried licorice,and dried aconite slices being used;in terms of drug dosage,rhubarb is 18.40 g,ginseng is 9.20 g,licorice is 9.20 g,dried ginger is 9.20 g,and aconite is 5.00 g;the preparation method is to add 1400 mL of water,decoct 600 mL,and take it warm in 3 times.This prescription was often used in ancient times to treat dysentery,cholera and other diseases.After be-ing developed by doctors in later generations,it is now also used to treat gastrointestinal diseases,renal failure,hypertension,insomnia and other diseases.The above research results can provide a reference for the development and subsequent research of Wenpi decoc-tion.

Objective:To investigate the influence of four preoperative CT image characteristics on the outcome of thoracoscopic surgery for chronic tuberculous empyema.Methods:This is a retrospective cohort study. Two hundred and eleven patients of tuberculous empyema who underwent video-assisted thoracic surgery(VATS) decortication at the First Department of Surgery , Wuhan Pulmonary Hospital from June 2020 to June 2023 were retrospectively analyzed. There were 162 male cases and 49 female cases, with an age ( M (IQR)) of 33 (27) years (range: 8 to 76 years). Patients were divided into two groups according to whether low-density lines, mass-patchy density, pleural fusion were observed, and the lesion size. Compare the clinical indicators of two groups of cases. Using the rapeutic efficacy as the dependent variable and four CT features as covariates, cases with cure or improve were included in Logistic regression analysis to calculate OR (95% CI) values. Results:Preoperative chest CT images showed that 127 cases (60.2%) had low-density lines, 102 cases (48.3%) had mass-patchy density, and 88 cases (47.7%) had pleural fusion. The lesions spanned 2 to 11 intercostal spaces, with a median of 7 intercostal spaces. The lesion size was divided into two groups according to <7 intercostal spaces and ≥7 intercostal spaces, with 101 cases (47.9%) and 110 cases (52.1%), respectively. In the intra-group comparison, there were no difference in age, lesion location and pulmonary tuberculosis. In the comparison of gender, except that the proportion of female patients in the group with lesion size <7 intercostal spaces ( χ2=6.064, P=0.010) was higher than ≥7 intercostal spaces, there were no significant difference between other groups. In low-density lines group, there was no difference in the incidence of anemia and hypoproteinemia between the two groups. Compared with the non low-density line group, patients with low-density line group exhibited fewer cases of abnormal elevation in ESR and CRP was lower(all P<0.01), the period of preoperative treatment ( U=7 281.00, P<0.01) was longer than the non low-density line group, while the operation time, intraoperative hemorrhage, postoperative drainage at 72 hours, postoperative drainage duration, lung re-expansion duration, and therapeutic efficacy were all better than the non low-density line group(all P<0.05). In the comparison between the mass-patchy density group, there were fewer cases of anemia, hypoproteinemia, abnormal elevation of ESR and CRP in the without mass-patchy density group(all P<0.05), and the period of preoperative treatmentwas shorter ( U=4 581.50, P=0.026), and the operation time, intraoperative hemorrhage, postoperative drainage at 72 hours, postoperative drainage duration, lung re-expansion duration and therapeutic effect were better too(all P<0.05). In the grouping comparison of pleural fusion, there were no difference in cases of anemia, hypoproteinemia, abnormal elevation of ESR and CRP, and the period of preoperative treatment between the two groups; the operation time, intraoperative hemorrhage, postoperative drainage at 72 hours, postoperative drainage duration, lung re-expansion duration, and therapeutic efficacy of the group without pleural fusion were better than the group with pleural fusion(all P<0.05). The group with <7 intercostal spaces had fewer cases of anemia, hypoproteinemia, abnormal elevation of ESR and CRP (all P<0.05), the period of preoperative treatment was longer ( U=4 295.00, P=0.004), the operation time, intraoperative hemorrhage, postoperative drainage at 72 hours,postoperative drainage duration, lung re-expansion duration and complications were less (all P<0.05), the therapeutic efficacy was better than the group with ≥7 intercostal spaces ( χ2=27.912, P<0.01). The Logistic regression analysis of cured and improved cases showed that mass-patchy density and lesion size were independent risk factors affecting the therapeutic efficacy (all P<0.05). Conclusions:For patients with CT images showing mass-patchy density, pleural fusion, and a large lesion size, the difficulty and risk of surgery may be relatively high.The preoperative CT images can provide objective reference for clinical preoperative evaluation.

Objective:To investigate the correlation between leucine-rich α2 glycoprotein (LRG) and endoscopic activity in patients with Crohn′s disease (CD), based on the assessment of inflammation in small intestinal lesion by double-balloon enteroscope (DBE).Methods:From 15 August 2022 to 22 August 2023, the clinical data of 139 patients with small bowel CD diagnosed by DBE at the First Affiliated Hospital of Anhui Medical University were prospectively collected, which included fecal calprotectin (FC), C-reactive protein (CRP), white blood cell count, hemoglobin, albumin, Crohn′s disease activity index (CDAI), and simple endoscopic score for Crohn′s disease (SES-CD). According to the SES-CD, endoscopic activity was classified as mucosal healing (0), endoscopic remission (0 to 2), mild activity (3 to 6), moderate activity (7 to 15), and severe activity (≥16). LRG levels were detected in all patients. Spearman rank correlation was used to analyze the correlation between LRG, clinical biochemical parameters and endoscopic scores. Receiver operating characteristic curve (ROC) was performed to determine the optimal cut-off value of LRG for evaluating endoscopic mucosal healing. Mann-Whitney U test, Kruskal-Wallis H test, and Bonferroni corrected test were used for statistical analysis. Results:Among 139 patients with small bowel CD, the LRG level was 17.3 (13.0, 25.2) mg/L, and SES-CD was 5 (1, 9); 32 patients achieved mucosal healing, 50 patients achieved endoscopic remission; 39 patients had mild activity, 40 patients had moderate activity, and 10 patients had severe activity. The SES-CD was negatively correlated with both hemoglobin and albumin ( r=-0.177 (95% confidence interval, 95% CI: -0.334 to -0.011), -0.293 (95% CI: -0.438 to -0.133)), with statistical significance ( P=0.037, <0.001). The SES-CD was positively correlated with CRP, CDAI, LRG and FC ( r=0.344 (95% CI: 0.188 to 0.482), 0.429 (95% CI: 0.282 to 0.556), 0.525 (95% CI: 0.393 to 0.636), 0.661 (95% CI: 0.556 to 0.745)), with statistical significant (all P<0.001). For the 64 small bowel CD patients with CRP in the normal reference value, SES-CD was positively correlated with CDAI, LRG and FC ( r=0.296 (95% CI: 0.054 to 0.505), 0.364 (95% CI: 0.129 to 0.559), 0.547 (95% CI: 0.348 to 0.699)), with statistical significance ( P=0.017, =0.003, <0.001). The LRG level of patients with endoscopic mucosal healing was significantly lower than that of patients with endoscopic remission (11.5 (10.1, 17.2) mg/L vs. 17.3 (13.4, 23.5) mg/L), with statistical significance ( Z=-3.25, P<0.001). ROC analysis showed that the area under the curve (AUC) of LRG in predicting endoscopic mucosal healing was 0.81 (95% CI: 0.73 to 0.89), with an optimal cut-off value of 15.27 mg/L. The sensitivity, specificity, positive predictive value and negative predictive value were 0.757, 0.718, 0.900 and 0.469, respectively. The accuracy of the combination of LRG and FC (AUC was 0.88, 95% CI: 0.82 to 0.94) in predicting endoscopic mucosal healing was higher than that of LRG alone (AUC was 0.81, 95% CI: 0.73 to 0.89), and the difference was statistically significant ( P=0.011). Conclusion:Based on the results of DBE, LRG may be a reliable biomarker for predicting endoscopic remission and mucosal healing in patients with small bowel CD.

Objective This study aimed to investigate the antimicrobial resistance profiles of bacterial strains isolated from pediatric intensive care units(PICU)in China for better antimicrobial therapy.Methods Clinical isolates were collected from 17 institutions,including tertiary care children's hospitals and pediatric department of tertiary general hospitals in China from January 1,2020 to December 31,2022.Antimicrobial susceptibility testing was carried out according to a unified protocol using Kirby-Bauer method or automated systems.Results were interpreted according to the breakpoints released by the Clinical and Laboratory Standards Institute(CLSI)in 2020.Results A total of 10 688 isolates were collected,including gram-positive organisms(39.2％)and gram-negative organisms(60.8％).The top three organisms were S.aureus(13.6％,1 453/10 688),A.baumannii(10.0％,1 067/10 688),and coagulase-negative Staphylococcus(9.9％,1 058/10 688).Multi-drug resistant organisms(MDROs)were very common in children.The prevalence of methicillin-resistant Staphylococcus aureus(MRSA),carbapenem-resistant Enterobacterales(CRE),carbapenem-resistant E.coli,carbapenem-resistant K.pneumoniae(CRKP),carbapenem-resistant A.baumannii(CRAB),and carbapenem-resistant P.aeruginosa(CRPA)was 41.1％,19.4％,8.8％,30.9％,67.4％,and 28.8％,respectively.Overall,more than 50％of Enterobacteriales isolates were resistant to cephalosporins,while nearly 25％of Enterobacteriales isolates were resistant to carbapenems.MDROs were highly resistant to commonly used antibiotics.More than 80％of CRE and CRAB strains were resistant to all beta-lactam antibiotics.CRE and CRAB showed low resistance rates to tigecycline and polymyxin.CRPA showed lower resistance rates to piperacillin,beta-lactamase inhibitor combinations than the resistance rates to third and fourth generation cephalosporins.All of the Staphylococcus and Enterococcus isolates were susceptible to vancomycin and tigecycline.None of PRSP strains isolated from meningitis and nonmeningitis samples were resistant to rifampicin,vancomycin,or linezolid.The prevalence of β-lactamase-negative ampicillin-resistant(BLNAR)strains was 43.3％in Haemophilus influenzae.Conclusions MDROs were prevalent in PICU.It is necessary to establish an effective multidisciplinary team(MDT)to control the antimicrobial resistance.

Objective This study aimed to investigate the antimicrobial resistance profiles of bacterial strains isolated from pediatric intensive care units(PICU)in China for better antimicrobial therapy.Methods Clinical isolates were collected from 17 institutions,including tertiary care children's hospitals and pediatric department of tertiary general hospitals in China from January 1,2020 to December 31,2022.Antimicrobial susceptibility testing was carried out according to a unified protocol using Kirby-Bauer method or automated systems.Results were interpreted according to the breakpoints released by the Clinical and Laboratory Standards Institute(CLSI)in 2020.Results A total of 10 688 isolates were collected,including gram-positive organisms(39.2％)and gram-negative organisms(60.8％).The top three organisms were S.aureus(13.6％,1 453/10 688),A.baumannii(10.0％,1 067/10 688),and coagulase-negative Staphylococcus(9.9％,1 058/10 688).Multi-drug resistant organisms(MDROs)were very common in children.The prevalence of methicillin-resistant Staphylococcus aureus(MRSA),carbapenem-resistant Enterobacterales(CRE),carbapenem-resistant E.coli,carbapenem-resistant K.pneumoniae(CRKP),carbapenem-resistant A.baumannii(CRAB),and carbapenem-resistant P.aeruginosa(CRPA)was 41.1％,19.4％,8.8％,30.9％,67.4％,and 28.8％,respectively.Overall,more than 50％of Enterobacteriales isolates were resistant to cephalosporins,while nearly 25％of Enterobacteriales isolates were resistant to carbapenems.MDROs were highly resistant to commonly used antibiotics.More than 80％of CRE and CRAB strains were resistant to all beta-lactam antibiotics.CRE and CRAB showed low resistance rates to tigecycline and polymyxin.CRPA showed lower resistance rates to piperacillin,beta-lactamase inhibitor combinations than the resistance rates to third and fourth generation cephalosporins.All of the Staphylococcus and Enterococcus isolates were susceptible to vancomycin and tigecycline.None of PRSP strains isolated from meningitis and nonmeningitis samples were resistant to rifampicin,vancomycin,or linezolid.The prevalence of β-lactamase-negative ampicillin-resistant(BLNAR)strains was 43.3％in Haemophilus influenzae.Conclusions MDROs were prevalent in PICU.It is necessary to establish an effective multidisciplinary team(MDT)to control the antimicrobial resistance.

Wenpi decoction is a classic prescription published in the Catalogue of Ancient Classic Prescriptions(First Batch).By sorting out and analyzing the ancient and modern literature on Wenpi decoction,the key information of Wenpi decoction in terms of its origin,drug composition,function,dosage,processing,preparation method,decoction method,prescription meaning,main indica-tions,and clinical application was systematically verified.A total of 165 relevant ancient literature data,114 modern clinical litera-ture,and 66 ancient Chinese medical books were obtained.The inductive analysis found that Wenpi decoction was first seen in the Ex-cerpts of prescriptions of the Eastern Jin Dynasty,and Sun Simiao of the Tang Dynasty included it in the Important Formulas Worth a Thousand Gold Pieces for Emergency.The current version is based on the Wenpi decoction in Volume 15 of Important Formulas Worth a Thousand Gold Pieces for Emergency,Spleen Heat Dysentery.The formula is composed of rhubarb,ginseng,licorice,dried ginger,and aconite.The medicinal origin follows the 2020 edition of the Chinese Pharmacopoeia,with raw products of rhubarb,ginseng,and dried ginger,stir fried licorice,and dried aconite slices being used;in terms of drug dosage,rhubarb is 18.40 g,ginseng is 9.20 g,licorice is 9.20 g,dried ginger is 9.20 g,and aconite is 5.00 g;the preparation method is to add 1400 mL of water,decoct 600 mL,and take it warm in 3 times.This prescription was often used in ancient times to treat dysentery,cholera and other diseases.After be-ing developed by doctors in later generations,it is now also used to treat gastrointestinal diseases,renal failure,hypertension,insomnia and other diseases.The above research results can provide a reference for the development and subsequent research of Wenpi decoc-tion.

Objective:To investigate the influence of four preoperative CT image characteristics on the outcome of thoracoscopic surgery for chronic tuberculous empyema.Methods:This is a retrospective cohort study. Two hundred and eleven patients of tuberculous empyema who underwent video-assisted thoracic surgery(VATS) decortication at the First Department of Surgery , Wuhan Pulmonary Hospital from June 2020 to June 2023 were retrospectively analyzed. There were 162 male cases and 49 female cases, with an age ( M (IQR)) of 33 (27) years (range: 8 to 76 years). Patients were divided into two groups according to whether low-density lines, mass-patchy density, pleural fusion were observed, and the lesion size. Compare the clinical indicators of two groups of cases. Using the rapeutic efficacy as the dependent variable and four CT features as covariates, cases with cure or improve were included in Logistic regression analysis to calculate OR (95% CI) values. Results:Preoperative chest CT images showed that 127 cases (60.2%) had low-density lines, 102 cases (48.3%) had mass-patchy density, and 88 cases (47.7%) had pleural fusion. The lesions spanned 2 to 11 intercostal spaces, with a median of 7 intercostal spaces. The lesion size was divided into two groups according to <7 intercostal spaces and ≥7 intercostal spaces, with 101 cases (47.9%) and 110 cases (52.1%), respectively. In the intra-group comparison, there were no difference in age, lesion location and pulmonary tuberculosis. In the comparison of gender, except that the proportion of female patients in the group with lesion size <7 intercostal spaces ( χ2=6.064, P=0.010) was higher than ≥7 intercostal spaces, there were no significant difference between other groups. In low-density lines group, there was no difference in the incidence of anemia and hypoproteinemia between the two groups. Compared with the non low-density line group, patients with low-density line group exhibited fewer cases of abnormal elevation in ESR and CRP was lower(all P<0.01), the period of preoperative treatment ( U=7 281.00, P<0.01) was longer than the non low-density line group, while the operation time, intraoperative hemorrhage, postoperative drainage at 72 hours, postoperative drainage duration, lung re-expansion duration, and therapeutic efficacy were all better than the non low-density line group(all P<0.05). In the comparison between the mass-patchy density group, there were fewer cases of anemia, hypoproteinemia, abnormal elevation of ESR and CRP in the without mass-patchy density group(all P<0.05), and the period of preoperative treatmentwas shorter ( U=4 581.50, P=0.026), and the operation time, intraoperative hemorrhage, postoperative drainage at 72 hours, postoperative drainage duration, lung re-expansion duration and therapeutic effect were better too(all P<0.05). In the grouping comparison of pleural fusion, there were no difference in cases of anemia, hypoproteinemia, abnormal elevation of ESR and CRP, and the period of preoperative treatment between the two groups; the operation time, intraoperative hemorrhage, postoperative drainage at 72 hours, postoperative drainage duration, lung re-expansion duration, and therapeutic efficacy of the group without pleural fusion were better than the group with pleural fusion(all P<0.05). The group with <7 intercostal spaces had fewer cases of anemia, hypoproteinemia, abnormal elevation of ESR and CRP (all P<0.05), the period of preoperative treatment was longer ( U=4 295.00, P=0.004), the operation time, intraoperative hemorrhage, postoperative drainage at 72 hours,postoperative drainage duration, lung re-expansion duration and complications were less (all P<0.05), the therapeutic efficacy was better than the group with ≥7 intercostal spaces ( χ2=27.912, P<0.01). The Logistic regression analysis of cured and improved cases showed that mass-patchy density and lesion size were independent risk factors affecting the therapeutic efficacy (all P<0.05). Conclusions:For patients with CT images showing mass-patchy density, pleural fusion, and a large lesion size, the difficulty and risk of surgery may be relatively high.The preoperative CT images can provide objective reference for clinical preoperative evaluation.

Objective:To investigate the correlation between leucine-rich α2 glycoprotein (LRG) and endoscopic activity in patients with Crohn′s disease (CD), based on the assessment of inflammation in small intestinal lesion by double-balloon enteroscope (DBE).Methods:From 15 August 2022 to 22 August 2023, the clinical data of 139 patients with small bowel CD diagnosed by DBE at the First Affiliated Hospital of Anhui Medical University were prospectively collected, which included fecal calprotectin (FC), C-reactive protein (CRP), white blood cell count, hemoglobin, albumin, Crohn′s disease activity index (CDAI), and simple endoscopic score for Crohn′s disease (SES-CD). According to the SES-CD, endoscopic activity was classified as mucosal healing (0), endoscopic remission (0 to 2), mild activity (3 to 6), moderate activity (7 to 15), and severe activity (≥16). LRG levels were detected in all patients. Spearman rank correlation was used to analyze the correlation between LRG, clinical biochemical parameters and endoscopic scores. Receiver operating characteristic curve (ROC) was performed to determine the optimal cut-off value of LRG for evaluating endoscopic mucosal healing. Mann-Whitney U test, Kruskal-Wallis H test, and Bonferroni corrected test were used for statistical analysis. Results:Among 139 patients with small bowel CD, the LRG level was 17.3 (13.0, 25.2) mg/L, and SES-CD was 5 (1, 9); 32 patients achieved mucosal healing, 50 patients achieved endoscopic remission; 39 patients had mild activity, 40 patients had moderate activity, and 10 patients had severe activity. The SES-CD was negatively correlated with both hemoglobin and albumin ( r=-0.177 (95% confidence interval, 95% CI: -0.334 to -0.011), -0.293 (95% CI: -0.438 to -0.133)), with statistical significance ( P=0.037, <0.001). The SES-CD was positively correlated with CRP, CDAI, LRG and FC ( r=0.344 (95% CI: 0.188 to 0.482), 0.429 (95% CI: 0.282 to 0.556), 0.525 (95% CI: 0.393 to 0.636), 0.661 (95% CI: 0.556 to 0.745)), with statistical significant (all P<0.001). For the 64 small bowel CD patients with CRP in the normal reference value, SES-CD was positively correlated with CDAI, LRG and FC ( r=0.296 (95% CI: 0.054 to 0.505), 0.364 (95% CI: 0.129 to 0.559), 0.547 (95% CI: 0.348 to 0.699)), with statistical significance ( P=0.017, =0.003, <0.001). The LRG level of patients with endoscopic mucosal healing was significantly lower than that of patients with endoscopic remission (11.5 (10.1, 17.2) mg/L vs. 17.3 (13.4, 23.5) mg/L), with statistical significance ( Z=-3.25, P<0.001). ROC analysis showed that the area under the curve (AUC) of LRG in predicting endoscopic mucosal healing was 0.81 (95% CI: 0.73 to 0.89), with an optimal cut-off value of 15.27 mg/L. The sensitivity, specificity, positive predictive value and negative predictive value were 0.757, 0.718, 0.900 and 0.469, respectively. The accuracy of the combination of LRG and FC (AUC was 0.88, 95% CI: 0.82 to 0.94) in predicting endoscopic mucosal healing was higher than that of LRG alone (AUC was 0.81, 95% CI: 0.73 to 0.89), and the difference was statistically significant ( P=0.011). Conclusion:Based on the results of DBE, LRG may be a reliable biomarker for predicting endoscopic remission and mucosal healing in patients with small bowel CD.

Objective:To identify the development trajectories of self-neglect behavior in older adults and explore the associated influencing factors.Methods:A fixed cohort was constructed based on the data from three surveys of Chinese longitudinal healthy longevity survey (CLHLS) from 2011 to 2018. A total of eight variables from 4 dimensions including living environment, lifestyle, social interaction, and health care were selected to evaluate self-neglect. Group-based trajectory model was used to identify the development trajectory of self-neglect behavior in the older adults, and polynomial Logistic regression model was used to explore its influencing factors by Stata 16.1.Results:Finally, 2 754 older adults aged 60 and above were included.The development trajectory of self-neglect behavior in older adults, based on the group-based trajectory model, can be classified into stable-low group ( n=268, 9.7%), descending-moderate group ( n=2 224, 80.8%), and decreasing-high group ( n=262, 9.5%). Polynomial Logistic regression showed that, compared with stable-low group, living in rural areas ( B=1.116, OR=3.053, 95% CI= 2.278-4.091) and higher activities of daily living scores( B=0.137, OR=1.147, 95% CI=1.046-1.258) were the risk factors of descending-moderate group. Education levels with 1-6 years( B=-0.398, OR=0.672, 95% CI=0.469-0.963), >6 years( B=-1.072, OR=0.342, 95% CI=0.229-0.513), being married( B=-0.476, OR=0.621, 95% CI=0.444-0.870), self-reported good health( B=-0.808, OR=0.446, 95% CI= 0.213-0.932), improved health status( B=-0.704, OR=0.495, 95% CI=0.320-0.766), self-reported average economic status( B=-1.065, OR=0.345, 95% CI=0.148-0.802), self-reported good economic status( B=-1.634, OR=0.195, 95% CI=0.082-0.467), and a higher cognition score( B=-0.142, OR=0.867, 95% CI=0.798-0.942) served as protective factors of descending-moderate group. In addition to the above factors, being in the age group of 75-89 years( B=0.481, OR=1.617, 95% CI=1.057-2.473) was a risk factor for decreasing-high group compared to stable-low group. Conclusions:Three types of self-neglect behavior trajectories among older adults were identified in this study, suggesting that physical health and economy are the influencing factors of the development trajectory of self-neglect of the elderly.

Objective This study aimed to explore the effect of pituitary tumor-transforming gene 1(PTT-G1)on the invasion and proliferation of oral squamous cell carcinoma(OSCC)cell lines under the action of miR-362-3p.Methods The bioinformatics online database was used to query the expression of PTTG1 in head and neck squamous cell carcinoma(HNSCC).The expression of PTTG1 in the Cal-27,HN-30,and HOK cell lines was detected by Western blot.A wound-healing assay was used to determine the effect of PTTG1 on the migration ability of the OSCC cells.The Transwell assay was used to examine the changes in cell-invasion ability.5-ethynyl-2'-deoxyuridine(EdU)cell-proliferation assay was used to detect changes in cell-proliferation ability.Bioinformatics approach predicted the upstream miRNA of PTTG1.The targeting relationship between miR-362-3p and PTTG1 was examined by the dual luciferase assay,and quantitative real-time polymerase chain reaction(qRT-PCR)was used to determine the expression of miRNA in OSCC tissues.Results The ENCORI database showed that PTTG1 expression was up-regulated in OSCC tissues.Western blot confirmed that PTTG1 expression was up-regulated in Cal-27 and HN-30 cells than HOK cells.PTTG1 knockout can inhibit the migration,invasion,and prolif-eration of Cal-27 and HN-30 cells(P<0.05).Bioinformatics prediction websites predicted that the upstream miRNA of PTTG1 was miR-362-3p,and PTTG1 can bind to miR-362-3p.Results of qRT-PCR showed that miR-362-3p expression was downregulated in OSCC tissues compared with normal tissue(P<0.05).Transwell and EdU experiments confirmed that miR-362-3p knockdown can promote the invasion and proliferation of Cal-27 and HN-30 after PTTG1 knockdown.Conclusion miR-362-3p can inhibit the invasion and proliferation of Cal-27 and HN-30 cells by targeting PTTG1.