ObjectiveTo realize the automatic recognition of the slicing angles of Fritillariae Thunbergii Bulbus （FTB） based on the improved YOLOv7-tiny algorithm. MethodFirstly， a diverse dataset of FTB images， totaling 16 000 pictures， with various angles was constructed. Furthermore， improvements were made to YOLOv7-tiny by replacing standard convolutions with ghost convolution （GhostConv）， incorporating the coordinate attention （CA） mechanism as a preferred addition， substituting some activation functions with HardSwish function for decreasing the floating point operations. Additionally， a penalty term for angle recognition error was integrated into the loss function， and modifications were made to the non-maximum suppression （NMS） strategy to address cases where multiple detection results were associated with the same target. In order to verify the effectiveness of different improvement points on the optimization of the algorithm model， ablation experiments were carried out on all the improvement points， and the effectiveness of the improvement points was proved by comparing the prediction results before and after the addition of a certain improvement point on the basis of the original model or the model with the addition of an improvement point that has been verified to be effective， in order to evaluate the improvement of the indexes. ResultThe number of parameters required for the improved slicing angle recognition algorithm of FTB was about 55.4% of the original algorithm， and the amount of computation was about 59.4% of the original algorithm. The mAP@0.5［mean average precision at an intersection over union（IoU） of 0.5］ increased by 12.2%， the mean absolute error（MAE） of the recognized angle was 5.02°， representing a reduction of 4.58° compared to the original algorithm. In the experimental environment of this paper， the average recognition time per image was as low as 8.7 ms， significantly faster than the average human reaction time. ConclusionThis study， by utilizing the improved YOLOv7-tiny algorithm， achieves effective slicing angle recognition of FTB with high accuracy and more lightweight， which provides a novel approach for stable and precise automated slicing of FTB， thereby providing valuable insights into the automation of processing other traditional Chinese medicines.

[Abstract]Objective To explore the predictive value of plaque characteristic index based on coronary CT angiography(CCTA)for disease-specific myocardial ischemia in stable coronary artery disease(CAD).Methods 90 stable CAD patients admitted to Zhongshan Hospital,Fudan University from October 2020 to March 2022 were prospectively enrolled,including 135 target vessels with stenosis degree ranging from 30%to 90%.All participants sequentially underwent CCTA,ICA,and fractional flow reserve(FFR)measurement within 2 weeks.Based on the presence or absence of significant hemodynamic stenosis,all patients were divided into myocardial ischemic population(FFR≤0.8,n=30)and non ischemic population(FFR＞0.8,n= 60),135 target blood vessels were divided into a disease-specific myocardial ischemia group(FFR≤0.8,n=36)and a non disease-specific myocardial ischemia group(FFR＞0.8,n=99).Univariate and subsequent forward stepwise multivariate logistic regression analyses were used to assess independent predictors of myocardial ischemia,and CCTA-derived plaque characteristics index logistic regression model was created.Receiver operating characteristic(ROC)analysis was used to analyze the diagnostic performance of CCTA-derived plaque characteristics index on detecting myocardial ischemia.Results There were no significant differences in age,body mass index,gender,cardiovascular risk factors,and medication between myocardial ischemia population and non-ischemia population.Compared with the non-lesion-specific ischemia group,plaque length,plaque area,percent area stenosis,total atheroma volume,vessel volume and lipid rich volume,positive remodeling and napkin-ring signs were significantly higher in lesion-specific group,while minimum luminal area(MLA)was significantly lower.MLA(OR=0.303,95%CI 0.178-0.517,P＜0.001)and total atheroma volume(TAV,OR=1.006,95%CI 1.002-1.010,P=0.003)were found to be the significant independent predictors of myocardial ischemia.The regression equation of CCTA-derived plaque characteristic index for predicting probability was P=1/[1+e-(-1.194 41×MLA+0.006 058×TAV+0.600 912)].The area under the ROC curve(AUC)of CCTA-derived plaque characteristic index on detecting myocardial ischemia was 0.879(95%CI 0.811-0.928),and the overall diagnostic accuracy,sensitivity,specificity,PPV and NPV were 80.0%,83.3%,78.8%,58.8%,and 92.9%,respectively.Conclusions CCTA-derived plaque characteristic index performs well in diagnosing lesion-specific myocardial ischemia,showing its great clinical application prospect.

Objective: To explore the impact of smart physical education assignment on physical health of male university students, so as to provide theoretical support and practical references for physical health improvement of male university students and implementing smart sports assignments. Methods: From September 2023 to January 2024, 317 sophomore male students from six Taekwondo elective classes at Hunan Institute of Engineering were selected and were randomly divided into an intervention group (n=157) and a control group (n=160). The intervention group was given sports assignments twice a week through smart means with an intervention duration of 15 weeks, each time for 25-35 minutes, in addition to the teaching according to the public course syllabus, while the control group was taught according to the public course syllabus. The physical and health indicators of both groups were tested before and after intervention,then the differences in various physical health indicators between two groups of students before and after intervention were compared through ttest and Mann-Whitney U test. Results: After the intervention, the vital capacity, 50 m run, sitandreach, 1 000 m run, and pullup scores of the intervention group significantly improved compared to those before intervention. The scores improved from (3 918.27±737.34)mL, 7.88(7.53,8.45)s, 9.80(2.70,15.75) cm, 4.30(4.12,4.50) min and 3.00(0.00,7.50) times to (4 574.19±800.61) mL, 7.65(7.37,8.12)s, 17.20(11.80,21.55)cm, 4.13(3.58,4.31)min and 5.00(1.00,10.00) times,respectively (t/Z=-7.60, 2.61, -8.39, 5.62, -2.72, P<0.05). Before intervention, there was no statistically significant difference in physical health indicators between the intervention group and the control group (P>0.05).After intervention,the scores of the intervention group on the vital capacity,50 m run,sitandreach,1 000 m run and pullup, were significantly higher than those of the control group [(4 310.97±808.90)mL, 7.75(7.40,8.30)s, 14.10(8.42,17.87)cm, 4.29(4.08,4.45)min and 4.00(1.00,7.00) times] (t/Z=2.91, -4.55, -4.75, -4.15, 2.58, P<0.05). Conclusions Having 25-35 min smart physical education assignment twice a week can effectively improve physical health level of male college students. It is recommended to assign appropriate amount of smart sports homework to improve physical health level of college students, while ensuring the amount and intensity of physical activity in public physical education courses.

Objective To analyze the factors affecting the risk of hepatocellular carcinoma(HCC)in patients with chronic hepatitis B-associated cirrhosis(CHB-Cir)complicated by essential hypertension(EH)and explore the impact of EH on HCC risk in patients with CHB-Cir.Methods This study was conducted among the patients with CHB-Cir with or without EH received antiviral therapy in the Infectious Disease Department,Third Affiliated Hospital of Xinxiang Medical University from January,2017 to January,2024.The cases with insufficient follow-up time or missing data were excluded.The patients were subjected to propensity score matching in a 1:1 ratio to form an EH group and a non-EH group.The Kaplan-Meier method was used to compare the cumulative incidence of HCC between the two groups,and the Cox proportional hazards regression model was used to analyze the risk of HCC and the factors affecting HCC risk.Results A total of 390 CHB-Cir patients(274 male and 116 female patients)were enrolled in this study,including 195 with EH and 195 without EH.In these patients,EH was significantly correlated with the occurrence of HCC(HR=1.69,P=0.002).Multivariate analysis suggested that the male gender(HR=1.73,P=0.005),a family history of liver cancer(HR=2.23,P<0.001),elevated alpha-fetoprotein(HR=2.83,P=0.001),elevated glutathione reductase(HR=1.53,P=0.046),reduced high-density lipoprotein(HR=1.46,P=0.027),and elevated low-density lipoprotein(HR=2.29,P=0.003)were all significantly correlated with HCC occurrence,while elevated triglycerides(HR=0.37,P<0.001)was a protective factor against HCC.In the EH group,treatment with non-RASIs drugs(HR=2.77,P=0.021)and no treatment/diuretic treatment(HR=7.18,P<0.001)were significantly correlated with HCC occurrence.Conclusion Hypertension increases the risk of HCC in patients with CHB-Cir,suggesting the importance of controlling hypertension in these patients.

Background::To address the need for immunotherapy in patients with advanced primary hepatocellular carcinoma (HCC), combination with radiotherapy (RT) has emerged as a promising strategy. In preclinical studies, irradiated tumors released tumor antigens to synergistically increase the antitumor effect of immunotherapy. Hence, we investigated whether RT enhances the efficacy of anti-programmed death receptor-1 (PD-1) inhibitors in advanced HCC in real-world practice.Methods::Between August 2018 and June 2021, 172 patients with advanced primary HCC were enrolled in the tertiary center (Zhongshan Hospital of Fudan University); 95 were treated with a combination of RT and the inhibitor of PD-1 (RT-PD1 cohort), and 77 were administered anti-PD-1 therapy (PD1 cohort). The first cycle of PD-1 inhibitors was administered within 60 days or concurrently with RT. Propensity score matching for bias reduction was used to evaluate the clinical outcomes.Results::Among 71 propensity-matched pairs, median progression-free survival was 5.7 months in the RT-PD1 cohort vs. 2.9 months in the PD1 cohort ( P <0.001). Median overall survival was 20.9 months in the RT-PD1 cohort vs. 11.2 months in the PD1 cohort ( P = 0.018). Compared with patients in the PD1 cohort, patients in the RT-PD1 cohort had significantly higher objective response rates (40.8%, 29/71 vs. 19.7%, 14/71, P = 0.006) and disease control rates (62.0%, 44/71 vs. 31.0%, 22/71, P <0.001). The incidences of toxic effects were not significantly different between the two cohorts. Conclusions::RT plus anti-PD-1 therapy is well tolerated. RT enhances the efficacy of anti-PD-1 therapy in patients with advanced primary HCC by improving survival outcomes without increased toxic effects.

ABSTRACT OBJECTIVE To explore the correlation between HPLC fingerprint and analgesic efficacy of Zhejiang vinegar Corydalis Rhizoma, and to screen out the material basis of analgesic effect of Zhejiang vinegar Corydalis Rhizoma.METHODS Established HPLC fingerprint of Zhejiang vinegar Corydalis Rhizoma and dysmenorrhea model in rats. The weight loss rate, writhing response, serum malondialdehyde(MDA), estradiol(E2), prostaglandin E2(PGE2) and prostaglandin F2α(PGF2α) levels were used as the evaluation indexes of analgesic efficacy. Combined with chemometrics, the main active components of analgesic effect of Zhejiang vinegar Corydalis Rhizoma and the important components with great contribution to the content were screened.RESULTS The fingerprints of different batches of Zhejiang vinegar Corydalis Rhizoma were established, and nine components were identified; compared with the blank group, the weight loss rate, writhing reaction, MDA, E2 and PGF2α levels in the model group were significantly increased. Compared with the model group, the above indexs in the administration group was decreased. Compared with the blank group, the PGE2 level in the model group was significantly decreased. Compared with the model group, the PGE2 level in the administration group was significantly increased. The vinegar Corydalis Rhizoma produced in Zhejiang had a good analgesic effect, and the main active components of its analgesic effect were protopine, palmatine hydrochloride, and dehydrocorydaline. The important components with greater contribution to the content were tetrahydropalmatine, protopine, palmatine hydrochloride and stylopine.CONCLUSION The efficacy of Zhejiang vinegar Corydalis Rhizoma is the result of the combined action of multiple components, and each component has a strong correlation with the pharmacodynamic indexes. This study provides a reference for the screening of analgesic material basis of Zhejiang vinegar Corydalis Rhizoma.

Objectives:The present study evaluated the impact of ablation pain during pulmonary vein isolation(PVI)on catheter-tissue contact at different regions. Methods:Forty consecutive patients with atrial fibrillation(AF)referred to Central China Fuwai Hospital for catheter radiofrequency ablation from February to May 2023 were enrolled.The pulmonary veins on each side were divided into 8 regions.The catheter-tissue contact force(CF)and the number of ablation contact stability(>50%catheter attach time CF≥10 g)of each ablation lesion were analyzed.Pain scores during the ablation were assessed using the Faces Pain Scale-Revised and the maximum score was taken for each ablation region.Based on the pain scores,in each region,20 cases with higher pain scores were categorized into the pain group and 20 cases with lower pain scores were categorized into the normal group.The CF characteristics of each region and the relationship with ablation induced pain were analyzed. Results:A total of 3 832 lesions were recorded in 40 patients with AF,with a mean CF of(12.2±7.8)g.Among them,the CF in the pain group was significantly lower than that in the normal group([11.1±5.1]g vs.[13.4±4.8]g,P<0.05).The top region of the right pulmonary vein was the region with the largest CF(16.5±5.8)g,and the upper part of the left anterior wall(at the ridge between the left atrial appendage)was the region with the smallest CF(7.5±3.7)g.At the bottom of right pulmonary vein,right lower posterior wall,left pulmonary vein,and left posterior wall,as well as the middle region of left posterior wall,and upper region of left posterior wall,the CF was significantly smaller in the pain group than that in the normal group(all P<0.05).Of the 3 832 lesions,2 193(57.2%)were stable lesions,and the proportion of stable lesions in the pain group was significantly lower than that in the normal group(55.2%vs.59.5%,P<0.05).In the right pulmonary vein bottom,right lower posterior wall,left lower anterior wall,left pulmonary vein bottom,and left lower posterior wall,the proportion of stable lesions was significantly lower in the pain group than in the normal group(all P<0.05).In addition,the ratio of stable lesions in left pulmonary vein regions was lower than in the right(54.2%vs.60.5%,P<0.05).In the upper part of the left anterior wall(at the ridge between the left atrial appendage),only 88(39.3%)of the 224 lesions in 40 patients were stable lesions. Conclusions:Pain during ablation significantly affects the stability of the catheter to tissue.Monitoring real-time CF during PVI may have important implications for improving ablation efficacy,especially in regions with more intense pain.

Objective To analyze the factors affecting the risk of hepatocellular carcinoma(HCC)in patients with chronic hepatitis B-associated cirrhosis(CHB-Cir)complicated by essential hypertension(EH)and explore the impact of EH on HCC risk in patients with CHB-Cir.Methods This study was conducted among the patients with CHB-Cir with or without EH received antiviral therapy in the Infectious Disease Department,Third Affiliated Hospital of Xinxiang Medical University from January,2017 to January,2024.The cases with insufficient follow-up time or missing data were excluded.The patients were subjected to propensity score matching in a 1:1 ratio to form an EH group and a non-EH group.The Kaplan-Meier method was used to compare the cumulative incidence of HCC between the two groups,and the Cox proportional hazards regression model was used to analyze the risk of HCC and the factors affecting HCC risk.Results A total of 390 CHB-Cir patients(274 male and 116 female patients)were enrolled in this study,including 195 with EH and 195 without EH.In these patients,EH was significantly correlated with the occurrence of HCC(HR=1.69,P=0.002).Multivariate analysis suggested that the male gender(HR=1.73,P=0.005),a family history of liver cancer(HR=2.23,P<0.001),elevated alpha-fetoprotein(HR=2.83,P=0.001),elevated glutathione reductase(HR=1.53,P=0.046),reduced high-density lipoprotein(HR=1.46,P=0.027),and elevated low-density lipoprotein(HR=2.29,P=0.003)were all significantly correlated with HCC occurrence,while elevated triglycerides(HR=0.37,P<0.001)was a protective factor against HCC.In the EH group,treatment with non-RASIs drugs(HR=2.77,P=0.021)and no treatment/diuretic treatment(HR=7.18,P<0.001)were significantly correlated with HCC occurrence.Conclusion Hypertension increases the risk of HCC in patients with CHB-Cir,suggesting the importance of controlling hypertension in these patients.

ObjectiveTo study the constituents migrating to blood of Qingyan formula by serum pharmacochemistry， and investigate the binding energy between these constituents and estrogen receptor （ER）， so as to confirm the pharmacodynamic material basis of Qingyan formula in rats. MethodUltra-high performance liquid chromatography-quadrupole electrostatic field-orbital trap high resolution mass spectrometry （UPLC-Q-Orbitrap-MS） was used to determine the constituents migrating to blood of Qingyan formula in rats by comparing the fingerprint differences of 70% ethanol extract of Qingyan formula， 70% ethanol extract of each single drug in this formula， blank serum and serum after administration of 70% ethanol extract of Qingyan formula， according to the retention time， relative molecular weight and the primary and secondary ion fragments provided by MS. Mobile phase was 0.1% formic acid aqueous solution （A）-acetonitrile（B） for gradient elution （0-5 min， 2%-20%B； 5-10 min； 20%-50%B； 10-15 min， 50%-80%B； 15-25 min， 80%-95%B； 25-26 min， 95%-2%B； 26-30 min， 2%B）， the flow rate was 0.3 mL·min^-1 and the injection volume was 5 μL， electrospray ionization was used with detection range of m/z 150-2 000， positive and negative ion scanning modes. Molecular docking technology was used to characterize the binding energy of constituents migrating to blood with ERα and ERβ， and to confirm the material basis of this formula. ResultAfter oral administration of Qingyan formula， 30 components were detected in serum， of which 9 were prototype components and 21 were metabolites. Nine prototype components were identified as monotropein， asperuloside， verbascoside， β-ecdysone， allantoin， deacetyl asperuloside acid， echinacoside， betaine and caffeic acid， 21 metabolites mainly included organic acids， amino acids， cholines and so on. The binding energies of the above 9 prototype components with ERα were -6.7， -8.9， -6.0， -5.7， -5.3， -4.9， -7.3， -3.3， -6.3 kcal·mol^-1 （1 kcal≈4 184 J）， and the binding energies of them with ERβ were -6.6， -7.2， -7.7， 8.0， -7.4， -5.5， -6.9， -3.6， -6.4 kcal·mol^-1， respectively. ConclusionThese nine prototype components into blood are the active ingredients of Qingyan formula that play estrogen-like role in the body， which can provide experimental basis for the formulation of quality standards and subsequent research and development of Qingyan formula.

Gallbladder carcinoma is the most common malignant tumor of the biliary tract system. It is characterized by atypical early clinical manifestations, rapid progress and poor prognosis. There is no specific marker for gallbladder cancer, and its preoperative diagnosis mainly relies on imaging examination, while pet-ct is more advantageous in detecting the metastasis of locally advanced gallbladder cancer. Surgical treatment is still the main treatment, but most patients have lost the opportunity of surgical resection by the time of treatment. In recent years, there have been a lot of researches on the diagnosis and treatment of gallbladder cancer at home and abroad. This paper reviews the diagnosis and treatment of gallbladder carcinoma.