ObjectiveTo explore the effects of Qingxin Jieyu granules on ventricular remodeling of mice after myocardial infarction， and their regulatory role in mitophagy. MethodsSixty male C57BL/6 mice were randomly assigned to six groups： sham-operated group， model group， Qingxin Jieyu granules low-， medium-， and high-dose groups （1.3， 2.6， 5.2 g·kg^-1）， and sacubitril valsartan sodium group （0.03 g·kg^-1）， with 10 mice per group. Except for the sham-operated group， all other groups utilized left anterior descending coronary artery ligation to build a myocardial infarction model. Ultrasound was used to measure left ventricular parameters， including end-diastolic and end-systolic diameters （LVIDd， LVIDs）， diastolic and systolic posterior wall thickness （LVPWd， LVPWs）， end-diastolic and end-systolic volumes （LV Vold， LV Vols）， left ventricular ejection fraction （LVEF）， and fractional shortening （LVFS）. Additionally， the heart mass index and heart weight/tibia length ratio of mice were calculated. Enzyme-linked immunosorbent assay （ELISA） was employed to quantify brain natriuretic peptide （BNP）， creatine kinase isoenzyme （CK-MB）， angiotensinⅡ （AngⅡ）， and lactate dehydrogenase （LDH） levels in the serum of mice. Histological analysis using hematoxylin-eosin （HE） and Masson staining was conducted to examine morphological changes in myocardial tissue. Immunohistochemistry assessed the expression of vascular growth factors， including basic fibroblast growth factor （bFGF） and vascular endothelial growth factor （VEGF）. Transmission electron microscopy was used to scrutinize mitochondrial morphology in the myocardial tissue of mice. Western blot was performed to analyze the expression of phosphorylated adenosine monophosphate activated protein kinase （p-AMPK） and phosphorylated mammalian target of rapamycin （p-mTOR） proteins in myocardial tissue from each experimental group. ResultsCompared to the sham-operated group， the model group mice exhibited significantly elevated levels of LV Vold， LV Vols， LVIDd， LVIDs， cardiac mass index， heart weight/tibia length ratio， BNP， LDH， and p-mTOR protein expression （P<0.05）， along with decreased levels of LVPWd， LVPWs， LVEF， LVFS， and p-AMPK protein expression （P<0.05）. The model group also displayed substantial inflammatory cell infiltration， collagen deposition in myocardial cells， reduced expression of bFGF and VEGF， mitochondrial swelling， and cristae fragmentation. Compared to the model group， the sacubitril/valsartan group and mid-dose Qingxin Jieyu granules group showed significant reductions in LVIDs， LV Vold， LV Vols， BNP， CK-MB， LDH， and p-mTOR protein expression （P<0.05）， coupled with increases in LVEF， LVFS， and p-AMPK expression （P<0.05）. Improvements were observed across all treatment groups， including reduced inflammatory cell infiltration and collagen deposition， increased bFGF and VEGF expression， alleviated mitochondrial swelling， and the presence of autophagosomes and lysosomes. ConclusionThe results show that Qingxin Jieyu granules can regulate mitochondrial autophagy in myocardial tissue and inhibit ventricular remodeling to improve cardiac performance， by up-regulating the p-AMPK expression in the myocardial tissue of mice with ventricular remodeling after myocardial infarction， and down-regulating the p-mTOR expression.

Testicular radiation injury is a structural and functional abnormality of the testes caused directly or indirectly by radiation, which disrupts spermatogenesis and compromises male fertility. The development of effective preventive and therapeutic interventions is essential because of the high prevalence of this condition in clinical settings and its profound effect on patients′ reproductive health and overall well-being. The concept of "the struggle between vital qi and pathogen" is first seen in the Treatise on Cold Pathogenic Diseases. It denotes the dynamic struggle between vital and pathogenic qi. The occurrence, development, and sequelae of all diseases reflect this ongoing conflict. In this context, this study defines the "vital qi" of the testis as its capacity to generate and preserve the essence of reproduction and to resist damage. The pathogenic qi associated with testicular radiation injury is categorized into two types: ionizing poison and retaining evil. The pathogenesis of testicular radiation damage is delineated into three stages by integrating the characteristics of vital and pathogenic qi: the injury, adhesion, and recovery phases. Based on the theoretical framework advanced by this study, the therapeutic approach for testicular radiation injury should adhere to the fundamental principle of strengthening vital qi and eliminating pathogenic factors. Although the primary focus of treatment should be on strengthening vital qi, it should also be complemented by strategies to eliminate pathogenic influences. This paper aims to provide a novel perspective and strategic approach to the traditional Chinese medicine diagnosis, prevention, and treatment of testicular radiation injury. By elucidating the process of testicular radiation injury and its corresponding treatment principles, it seeks to offer valuable insights for clinical practice.

Objective To explore the application value of Fast Dixon technique in MR hip joint scanning.Methods Fifty young volunteers were recruited to perform axial and coronal MR scans of the hip joint.The scanning sequence was Fast Dixon T2WI sequence and conventional Dixon T2WI sequence.A double-blind five-point scale was used to subjectively evaluate the image quality of the two types sequences.The signal-to-noise ratio(SNR)and contrast-to-noise ratio(CNR)of the axial image were measured at the maximum level of the bladder display.Results In the scores of"good contrast between surrounding tissue and femoral head signal"and"overall image quality",the Fast Dixon T2WI sequence was better than the conventional Dixon T2WI sequence,and the difference was statistically significant(P<0.05).There was no significant difference in the average scores of"whether bladder artifacts affected the diagnosis"and"whether the fat suppression effect was good"between Fast Dixon T2WI sequence and conventional Dixon T2WI sequence(P>0.05).In the objective image quality evaluation,the SNR and CNR of Fast Dixon T2WI sequence were better than those of conventional Dixon T2WI sequence,and the difference was statistically significant(P<0.05).Conclusion The image quality score of the hip joint of young volunteers with Fast Dixon T2WI sequence combined with multiple averaging excitation technique is significantly higher than that of conventional Dixon T2WI sequence.The Fast Dixon T2WI sequence can increase the effect of inhibiting fat and motion artifacts without increasing the scanning time,and the joint face ratio is good.Fast Dixon technique can replace the traditional Dixon technique,thus becoming an optimal choice for hip joint MR scanning.

Objective To observe changes of CT quantitative indexes in patients with untreated chronic obstructive pulmonary disease(COPD)and relationships with pulmonary function indicators.Methods Totally 99 patients with untreated COPD were retrospectively enrolled.According to the degrees of airflow obstruction,the patients were divided into group A(GOLD grade 1 with mild obstruction,n=36),group B(GOLD 2 with moderate obstruction,n=37)and group C(GOLD 3 or 4 with obvious obstruction,n=26).The results of chest CT and pulmonary function tests conducted at the first diagnosis and the follow-up,as well as their correlations were analyzed.CT quantitative indicators included the whole lung volume,low-attenuation areas less than-950 percentage(LAA％),total number of vessels per 1 cm2 of lung surface area(Ntotal/LSA),total number of vessels with area less than 5 mm2 per 1 cm2 of lung surface area(N＜5mm2/LSA),the square root of the wall area of a hypothetical airway with a 10 mm internal perimeter(Pi10),the entire volume,wall thickness and wall area percentage(WA％)of airway wall,etc.,while results of pulmonary function tests included the forced expiratory volume in one second(FEV1)after administration of a bronchodilator,forced vital capacity(FVC),the ratio FEV1/FVC and FEV1 expressed as percent predicted(FEV1％).Results Compared with those at the first diagnosis,the follow-up results of FVC,FEV1,FEV1/FVC,Ntotal/LSA and N＜5mm2/LSA were lower,whereas LAA％,Pi10 and entire volume of airway were all higher in each group(all P＜0.05).Compared with those in group A,group B and C had decreased LAA％and increased Pi10,and the magnitude increased with the severity of airflow obstruction(all P＜0.05).LAA％,Pi1o and entire volume of airway wall were negatively correlated with pulmonary function indicators(all P＜0.05),while Ntotal/LSA and N＜5 mm2/LSA were positively correlated with pulmonary function indicators(all P＜0.05).Conclusion CT quantitative parameters,including LAA％,Ntotal/LSA,N＜5mm2/LSA,Pi10 and entire volume of airway wall were related to pulmonary function,which might reflect the longitudinal changes of airways and blood vessels in COPD patients.

Objective To analyze the risk factors influencing the occurrence of atherosclerosis in patients with type 2 diabetes, and to construct and evaluate a nomogram prediction model. Methods Multivariate logistic regression was used to analyze the risk factors of atherosclerosis in type 2 diabetes mellitus, and R software was used to build a nomogram prediction model. The accuracy and clinical validity of the model were verified by using H-L fit curve, area under ROC curve and calibration curve. Results The prevalence rate of atherosclerosis was 56.37%. Independent risk factors for atherosclerosis in type 2 diabetes mellitus (P<0.05) were body weight (OR=1.42，P<0.05), glycated serum protein (OR=1.35, P<0.05), lactate dehydrogenase (OR=1.17, P<0.05), alkaline phosphatase (OR=0.79, P<0.05), hyperlipidemia (OR=2.30, P<0.05), stroke (OR=4.20, P<0.05), coronary heart disease (OR=64.54, P<0.05), lower extremity artery disease (OR=24.52, P<0.05), and other endocrine diseases (OR=1.65 , P<0.05). The area under ROC curve was 0.91, the slope of the calibration curve was close to 1, and the H-L fit curve χ²=3.11. The internal verification result of the constructed nomogram prediction model was P=0.93. External verification of patients in the test set showed that the area under ROC curve was 0.91, indicating good differentiation and accuracy of the model. Conclusion The prediction model established by using the risk factors screened in this study has a high accuracy and differentiation, and medical staff can take effective prevention measures according to the individual factors of patients.

Ventricular remodeling is a crucial pathological process in the prognosis and regression of myocardial infarction. Guided by the theory of “yang transforms into qi， while yin constitutes form" of The Inner Canon of Yellow Emperor （《黄帝内经》）， combined with the pathological characteristics and manifestations of ventricular remodelling， it is believed that insufficient "yang transforms into qi" and excess "yin constitutes form" resulting to heart yang deficiency and turbid pathogen obstruction are the basic pathomechanism of ventricular remodelling after myocardial infarction； insufficient "yin constitutes form" and excess "yang transforms into qi" resulting to inadequate nourishment of the heart meridians and the emergence of various pathological changes are the key pathomechanism of prognosis and regression. Combined with clinical practice， we advocated that harmonizing yin and yang to maintain the dynamic balance of "yang transforms into qi" and "yin constitutes form". We also proposed the use of warming and tonifying to harmonise qi and transform it to help yang transport； resolving phlegm and removing dampness， invigorating blood and resolving toxins to disperse yin accumulation； clearing heat and extinguishing wind， and nourishing yin and channels to improve the prognosis. All these findings and summary could provide ideas on traditional Chinese medicine for prevention and treatment of ventricular remodelling after myocardial infarction.

Purpose/Significance To explore the application and predictive accuracy of various models in predicting the risk of ather-osclerosis in diabetic patients.Method/Process Based on the biochemical data table from the"Diabetes Complications Warning Dataset"provided by the National Population Health Science Data Center,MATLAB software is used to construct risk prediction models for diabe-tes-induced atherosclerosis.The models are built by using k-nearest neighbors(KNN),decision trees,backpropagation(BP)neural networks,and Naive Bayes algorithms,and which are subjected to comparative analysis.Result/Conclusion In terms of effectiveness,the predictive accuracy of Naive Bayes algorithm is the highest(61.6％),followed by the decision tree model(58.2％),the KNN mod-el(57.7％),and the BP neural network model(55.9％).The results of the confusion matrix and the receiver operating characteristic(ROC)curve indicate that the Naive Bayes model performs best.When comparing the models in terms of effectiveness,performance and stability,the Naive Bayes model is superior.

Objective:To evaluate the stability of the zygomatic complex in reduction malarplasty (RM) with different fixation method.Methods:The clinical data of patients with zygomatic arch protrusion at the Department of Orthognathic and Temporomandibular Joint Surgery, West China Hospital of Stomatology, Sichuan University from January 2018 to January 2021 were analyzed retrospectively. All patients underwent L-shaped osteotomy reduction malarplasty which were divided into zygomatic body fixation (ZBF) and zygomatic arch fixation (ZAF) according to fixation technique. As for ZBF, there were 4 different groups including two bicortical screws (2LS), an L-shaped plate with one bicortical screw (LPLS), an L-shaped plate with short-wing on the zygoma (LPwZ) and an L-shaped plate with short-wing on the maxilla (LPwM). As for ZAF, there were 3 different groups including mortice-tenon (MT), 3-hole plate (3HP) and short screw (SS). CT imaging data of two postoperative periods (1 week later; 6 months later) were collected. ITK-SNAP and 3D Slicer software were applied to evaluate the difference in the displacement distance of relevant landmarks of the zygomatic complex, so as to compare the postoperative stability of RM under different fixation methods. Statistical analyses were performed using IBM SPSS Statistics, version 25.0, and Kruskal-Wallis method was used to compare the difference of relevant landmarks displacement distance between ZBF group and ZAF group. P<0.05 was considered statistically significant. Results:60 patients (120 zygomatic arches) who were composed of 21 men and 39 women, aged (27.1±4.9) years were included. There were 30 samples in each group of ZBF and 40 samples in each group of ZAF. Compared with the single L-shaped plate (LPwZ, LPwM) group, the displacement distance of zygomatic complex in 2LS and LPLS groups was shorter ( P<0.05). The three fixation method of zygomatic arch (MT, 3HP, SS) had similar effects on the displacement of zygomatic complex ( P>0.05). Conclusion:After RM, the "two-bridge" fixation method (2LS and LPLS) provides better stability than the single L-shaped plate. The stability of all ZAF is similar when combined with 2LS or LPLS.

Objective:To explore the standardization of totally implantable venous power port of nursing process in CT enhancement and application effect of contrast medium injection, so as to provide a safer and more efficient way for contrast medium injection in CT enhanced examination for patients with malignant tumors.Methods:A non-randomized prospective study was conducted, 358 patients with malignant tumors were selected in Sun Yat-sen Memorial Hospital, Sun Yat-sen University who underwent CT enhanced examination from August 1, 2022 to July 31, 2023, 179 patients who had been implanted totally implantable venous power port were selected as the experimental group, and the standardized nursing procedure was given. The other 179 patients were the control group, using radiology routine high-pressure intravenous indwelling needle as the contrast medium access, with routine peripheral venous nursing process. The incidence of contrast medium extravasation during CT enhanced examination was observed and compared between the two groups.Results:All the patients were included. There were 85 males and 94 females, aged (55.50±11.72) years old in the control group. There were 83 males and 96 females, aged (54.50±12.24) years old in the experimental group. The incidence of contrast medium extravasation was 0 in the experimental group and 3.35%(6/179) in the control group. The difference between the two groups was statistically significant (Fisher exact probability, P<0.05). Conclusions:The application of standardized nursing procedure of totally implantable venous power port to the injection of contrast medium in CT enhanced examination of malignant tumor patients, can significantly reduce the incidence of contrast medium extravasation.

Hepatocellular carcinoma is one of the most common malignant tumors in the world, which is a serious threat to human health. HBV infection is one of the most common causes of hepatocellular carcinoma.The diagnosis of most hepatocellular carcinoma has progressed to the middle and late stage, and the prognosis is poor. Early detection, diagnosis and treatment are important supports to improve the clinical outcome of hepatocellular carcinoma. In recent years, scholars at home and abroad have established various hepatocellular carcinoma risk prediction models, which are conducive to improving the early diagnosis rate of hepatocellular carcinoma and reducing the mortality rate. This article reviews the risk factors and risk prediction models of chronic hepatitis B associated hepatocellular carcinoma, in order to provide reference for HBV-associated liver cancer risk monitoring and management decision.