OBJECTIVE To establish a method for the determination of the concentrations of anti-tumor lead compounds purine benzamides PLB-E and PLB-P in rat plasma by HPLC and apply to study pharmacokinetics. METHODS The established HPLC was used to determine the plasma drug concentrations of rats at different time points after intravenous administration of 5, 10, 20 mg·kg–1 (low, medium, high doses) of PLB-E and PLB-P, and the pharmacokinetic parameters of each compound were calculated using DAS 3.3.0 software. RESULTS PLB-E and PLB-P had good linear relationship in the range of 2–120, 3–60 μg·mL–1, respectively(r2>0.999). The RSD of inter-day and intra-day precision were <15%. The extraction recoveries were 87.48%–92.84% and 88.24%–92.60%, respectively. The main pharmacokinetic parameters of PLB-E and PLB-P after a single intravenous injection of 5, 10, 20 mg·kg–1 were as follows, the average Cmax was (20.30±2.39), (40.63±3.40), (63.62±7.55)mg·L–1 and (13.21±1.40), (24.87±1.33), (32.83±0.65)mg·L–1, respectively. AUC(0-∞) were (104.67±48.39), (177.42±84.11), (194.32±91.48)mg·h·L–1 and (106.75±54.21), (179.90±93.59), (253.56±126.17)mg·h·L–1, respectively. Tmax of each dose was 0.08 h. CONCLUSION The HPLC method established in this study meets the requirements for the determination of biological samples through methodological verification, which is applicable to the determination of the concentration of PLB-E and PLB-P in rat plasma and the pharmacokinetic study. The pharmacokinetic process of PLB-E and PLB-P in rats conforms to the two-compartment model, and conforms to the nonlinear kinetic elimination.

Objective:To explore the clinical efficacy of simultaneous or staged video-assisted thoracoscopic surgery (VATS) anatomic segmentectomy for bilateral double primary lung cancer (DPLC).Methods:A retrospective cohort study was conducted. The clinical data of 76 patients with bilateral DPLC who underwent VATS anatomic segmentectomy in Luzhou Traditional Chinese Medicine Hospital from February 2020 to August 2022 were retrospectively analyzed, and they were classified into the simultaneous bilateral thoracoscopic surgery group (the simultaneous group, 44 cases) and the staged thoracoscopic surgery group (the staged group, 32 cases) on the basis of the surgical methods. The intraoperative conditions, perioperative indexes and postoperative complications of the two groups were compared.Results:There were no statistically significant differences in the gender, age, pathological type,postoperative TNM staging of both groups (all P > 0.05). The anesthesia awakening time of the first and second stages of surgery in the staged group was (11±3) min and (13±4) min, which was shorter than that in the simultaneous group [(16±4) min] ( t values were 5.27 and 3.51, both P < 0.05). The number of drainage tubes placed in the simultaneous group was less than that in the sum of two stages of the staged group [(1.9±0.5) tubes vs. (2.2±0.5) tubes, t = 3.40, P = 0.001]. The duration of thoracic drainage tube retention, the postoperative total drainage flow, the days of hospitalization, the first postoperative landing time, and the total treatment cost in the first and second stages of surgery in the staged group were lower than those in the simultaneous group (all P < 0.05), while the postoperative total drainage flow, the days of hospitalization, and the total treatment cost in the sum of two stages of the staged group were higher than those in the simultaneous group (all P < 0.05). The total incidence of complications in the simultaneous group was higher than that in the staged group 1 month after surgery [18.18% (8/44) vs. 3.13% (1/32)], and the difference was statistically significant ( χ2 = 4.02, P = 0.045). The scores of activities of daily living, arterial partial pressure of oxygen, arterial partial pressure of carbon dioxide, and blood oxygen saturation in the simultaneous group were lower than those in the staged group (all P < 0.05). Conclusions:Staged VATS anatomic segmentectomy for bilateral DPLC has few complications and good ability to perform activities of daily living, whereas the treatment cost of simultaneous bilateral thoracoscopic surgery is low. Clinicians may recommend prioritizing simultaneous bilateral thoracoscopic surgery after comprehensively considering the patients ' physical and economic conditions.

ObjectiveTo observe the clinical efficacy of Tongdu Huoxue decoction in the treatment of acute lumbar disc herniation （LDH）. MethodA total of 316 patients with acute LDH admitted to the orthopedic outpatient department of Hubei Provincial Hospital of Traditional Chinese Medicine and Honghu City Hospital of Traditional Chinese Medicine from January 2020 to June 2023 were randomly divided into two groups. 156 cases in the control group （two cases with stopped follow-up） were treated with meloxicam tablets， while 153 cases in the observation group （five cases with stopped follow-up） were treated with Tongdu Huoxue decoction. Both groups were treated for three months. The clinical efficacy， McGill Pain Score Scale （SF-MPQ）， Oswestry Dysfunction Index （ODI） score， and the Japanese Orthopaedic Association （JOA） scores of the two groups before and after treatment were compared. The serum levels of interleukin-1β （IL-1β）， interleukin-6 （IL-6）， and tumor necrosis factor-α （TNF-α） of the patients before and after treatment were determined by using enzyme-linked immunosorbent assay （ELISA）. The NDI-092 type electromyography-evoked potential instrument was adopted to measure the motor conduction velocity and clinical efficacy of the tibial and common peroneal nerves in patients of the two groups before and after treatment， and the clinical safety of the two groups of patients was compared. ResultAfter treatment， the total effective rate in the observation group was 95.4% （146/153）， significantly higher than that in the control group of 76.3% （119/156） （χ² =23.18， P<0.05）. After treatment， both groups showed significant reductions in SF-MPQ and ODI scores， as well as the levels of IL-1β， IL-6， and TNF-α （P<0.05）， with the observation group showing a more significant reduction （P<0.05）. Both groups showed a significant increase in JOA scores and motor conduction velocities of the tibial and common peroneal nerves after treatment （P<0.05）， with the observation group showing a more significant increase （P<0.05）. ConclusionTongdu Huoxue decoction can alleviate lumbar and leg pain in acute LDH， improve lumbar spine function， and suppress inflammatory reactions. It is highly safe and is worthy of clinical promotion.

A retrospective analysis was made on the clinical data and gene mutation characteristics of 2 children admitted to the Children′s Hospital of Zhejiang University School of Medicine for epilepsy without periventricular nodules caused by the ARF1 gene mutation from August 2023 to February 2024, and relevant literature was reviewed.Both patients presented with seizures and psychomotor retardation, and 1 of them was diagnosed with West syndrome.Whole exome sequencing confirmed that the 2 patients carried a missense mutation in the ARF1 gene (c.55C>A, p.R19S).Brain magnetic resonance imaging (MRI) of 2 patients revealed no obvious abnormalities.A summary analysis of 5 cases of ARF1 gene mutations reported in three foreign literatures showed that patients with ARF1 gene mutations usually presented with seizures, developmental delay, hypotonia, mental retardation, and motor stereotypies.MRI showed periventricular nodular heterotopia, corpus callosum dysplasia, subcortical white matter abnormalities, and delayed myelination.This study found for the first time that ARF1-related disorders can occur without significant brain structural malformations, indicating that there are inconsistencies in neuroimaging findings, adding valuable phenotypic information to this gene.The differences in imaging findings may be the result of genetic background or variation in ARF1-interacting proteins, or may be caused by altered regulatory mechanisms of protein activity.

Objective:To investigate the effects of navigation bronchoscopy and artificial intelligence in the standardized training of residents on basic bronchoscopy skills, with the goal of enhancing their practical abilities.Methods:We selected 26 trainees (14 on standardized training of residents and 12 on standardized training of specialists) who participated in the basic navigational bronchoscopy skills and technique training (NBSTAT) at Ruijin Hospital, Shanghai Jiao Tong University School of Medicine from September 2023 to January 2024. The training was structured around a modular curriculum with navigation as the core design concept, consisting of five modules: lesion identification, precise localization, route planning, navigation operation, and real-time error correction. Theoretical teaching and skill practice were combined. The skill proficiency of the trainees was assessed using the Ruijin Hospital bronchoscopy simulation training system and the electromagnetic navigation bronchoscopy system. SPSS 26.0 was used to perform the t-test and Wilcoxon rank-sum test for comparisons. Results:After the training, the trainees as a whole showed significant improvements in practicing the skills, with the simulated operation time was reduced from (125.08±48.16) seconds to (77.69±24.75) seconds, the number of errors decreased from 1 to 0, the total score increased from (60.77±15.01) to (75.19±17.63), and the navigation operation time was reduced from 3 (3, 4) minutes to 2 (2, 3) minutes (all P<0.05). There were no significant differences in these assessment items between resident trainees and specialist trainees. The satisfaction rate of the trainees with the training reached 100.00%. Conclusions:The curriculum is effective in basic bronchoscopy skill training, remarkably enhancing the bronchoscopy skills of resident and specialist physicians, which is a useful approach for physicians to cope with the continuous development of diagnostic and therapeutic techniques for pulmonary diseases.

Objective:To translate the Pediatric Epilepsy-Specific Health-Related Quality of Life (PedsQL TM Epilepsy Module) into Chinese and test its reliability and validity in children aged 5 to 7 years old and their parents. Methods:Brislin translation model was used for forward translation, back translation, harmonization, and proofreading of the PedsQL TM Epilepsy Module. Chinese version of PedsQL TM Epilepsy Module beta version was developed through cognitive interviews, expert consultations, and pre-surveys for cross-cultural adaptation of the scale. From April to November 2023, convenience sampling was used to select 420 children with epilepsy and their parents admitted to the Children's Hospital of Soochow University as participants for a questionnaire survey to test its reliability and validity. Results:A total of 840 questionnaires were distributed (420 for children and 420 for parents), and 394 valid questionnaires were collected from children and 400 valid questionnaires were collected from parents, and the effective response rates of the questionnaires were 93.81% (394/420) and 95.24% (400/420), respectively. Chinese version of PedsQL TM Epilepsy Module (child report version) included five dimensions and 28 items. Chinese version of PedsQL TM Epilepsy Module (parent agent report version) consisted of five dimensions and 29 items. The content validity indices at the item level were 0.800 to 1.00, while the content validity indices at the scale level were 0.978 and 0.979, respectively. Exploratory factor analysis of two versions of the scale showed that five common factors were extracted, with cumulative variance contribution rates of 64.557% and 75.205%, respectively. Confirmatory factor analysis showed that the models of the two scales fitted well. The total Cronbach's α coefficients of the two scales were 0.906 and 0.914, respectively, with Cronbach's α coefficients for each dimension ranging from 0.869 to 0.991. The total test-retest reliability coefficients of the scale were 0.998 and 0.995, respectively, and the test-retest reliability coefficients of each dimension were 0.803 to 0.995. Conclusions:Chinese version of the PedsQL TM Epilepsy Module has good reliability and validity, and is suitable for evaluating the health-related quality of life of children with epilepsy aged 5 to 7 years old in China.

Objective:To investigate the value of diffusion kurtosis imaging (DKI) combined with quantitative dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) in predicting axillary lymph node metastasis in breast cancer.Methods:A total of 150 cases of breast cancer confirmed by pathology in the Affiliated Hospital of Jining Medical University were retrospectively analyzed. 68 cases had axillary lymph node (ALN) metastasis and 82 cases had no ALN metastasis. All breast lesions were examined by DKI and DCE-MRI before operation. We analyzed clinical case data, routine MRI features, DKI, and DCE-MRI parameters between two groups, including diffusion kurtosis (MK), mean diffusion rate (MD), volume transfer constant (K trans), extravascular volume fraction (Ve), and rate constant (Kep); The receiver operating characteristic (ROC) curve was used to analyze the diagnostic efficacy of quantitative parameters for ALN metastasis of breast cancer. Results:The proportion of lesions with blurred edges in the metastatic group was higher than that in the non ALN metastatic group ( P=0.032); The proportion of uneven and circular enhancement within the ALN metastasis group was relatively high ( P=0.018). The MD value of the ALN transfer group was lower than that of the group without ALN transfer ( P=0.021); The MK value, K trans value, and Kep value were higher than those in the group without ALN metastasis (all P<0.01). The K trans value of DCE-MRI model was the most effective in diagnosing ALN metastasis of breast cancer, and the area under the ROC curve (AUC) was 0.831; The AUC of DCE-MRI model was 0.833, which was higher than that of DKI model (AUC=0.733), and the difference was statistically significant ( Z=2.208; P=0.027). The AUC of DCE-MRI and DKI models were higher than that of conventional MRI models ( Z=3.184, P=0.002; Z=1.917, P=0.046). The sensitivity and accuracy of combined DKI and DCE-MRI models in the diagnosis of ALN metastasis in breast cancer were higher than those of single model. Conclusions:DKI and DCE-MRI models can be used to predict axillary lymph node metastasis in breast cancer. Among them, the K trans value of DCE-MRI model is the most effective in diagnosing axillary lymph node metastasis in breast cancer.

Objective:To investigate alterations in the glymphatic system of spinocerebellar ataxia type 3 (SCA3) patients based on quantitative MRI, and its association with genetic information and motor dysfunction.Methods:The study was a cross-sectional study. This prospective study recruited 39 confirmed SCA3 patients (SCA3 group) and 40 matched healthy controls (HC group) who were seen at the Southwest Hospital of Army Medical University from May 2017 to June 2023. All subjects underwent cranial MRI scanning. Clinical assessments were conducted on all participants using the scale for the assessment and rating of ataxia (SARA) and the international cooperative ataxia rating scale (ICARS). The automatic segmentation and volume measurement of the choroid plexus based on Freesurfer 6.0; the perivascular interstitial space (PVS) was automatically segmented based on the deep-learning model VB-Net, and the volume of the PVS in each brain region was quantified after manual correction. Independent samples t-test and Mann-Whitney U-test were used to analyze the changes in the class lymphatic system in the SCA3 group and the HC group. Pearson partial correlation analysis was used to explore the relationship between CAG repeats, the glymphatic system, and motor dysfunction. Results:The standardized choroid plexus volume in the SCA3 group was (1.24±0.36)×10 3 mm 3, and that in the HC group was (0.96±0.34)×10 3 mm 3, with a statistically significant difference ( t=4.01, P<0.001). PVS volumes in the frontal lobe, temporal lobe, parietal lobe, basal ganglia, cerebellum, thalamus, and brainstem regions in the SCA3 group were significantly higher than those of HC group ( P<0.05). Partial correlation analysis revealed that CAG repeats in SCA3 group were positively correlated with SARA, ICARS, and basal ganglia PVS volumes ( r=0.65, 0.58, 0.29; P=0.001, 0.001, 0.042). Cerebellar and temporal lobe PVS volumes were positively correlated with SARA ( r=0.59, 0.47; P=0.001, 0.003), and positively correlated with ICARS scores ( r=0.61, 0.40; P=0.001, 0.011). Choroid plexus volume was positively correlated with cerebellar and basal ganglia PVS volumes ( r=0.41, 0.31; P=0.009, 0.043). Conclusions:The glymphatic system of SCA3 patients have significant alteration and have association with CAG repeats and motor dysfunction.

Objective:To explore the current status of lipid-lowering therapy, the distribution of low-density lipoprotein cholesterol (LDL-C) levels and the risk assessment of cardiovascular events recurrence in patients with coronary heart disease (CHD) complicated by hypertension.Methods:This was a cross-sectional study. Patients with CHD combined with hypertension were hospitalized in the Department of Cardiology, General Hospital of Chinese People′s Liberation Army from August 5, 2008 to July 22, 2018 were included, and were divided into standard group and substandard group according to whether LDL-C reached the standard. Study data were obtained from inpatient coronary angiography records and electronic medical records database of Department of Cardiology, General Hospital of Chinese People′s Liberation Army, who used data from the first diagnosis of CHD. Clinical data of the selected patients were collected. Multivariate logistic regression model was used to analyze the associated factors of whether LDL-C reached the standard in CHD patients with hypertension.Results:A total of 18 800 patients were selected from 31 provinces/autonomous regions/municipalities directly under the central government in China, with Beijing accounting for the largest proportion (5 692 patients (30.28%)), followed by Hebei (3 621 patients (19.26%)), Henan (1 837 patients (9.77%)), and Shandong (1 618 patients (8.61%)). Among the selected patients, 1 493 had LDL-C<1.4 mmol/L (standard group), and 17 307 had LDL-C≥1.4 mmol/L (substandard group). Only 1 493 patients (7.94%) had LDL-C<1.4 mmol/L. There were 4 518 patients (24.03%), 4 366 patients (23.22%), 6 924 patients (36.83%) and 1 499 patients (7.97%) with LDL-C for 1.4-<2.0, 2.0-<2.5, 2.5-<3.8 and≥3.8 mmol/L levels, respectively. 17 855 patients (95.15%) were treated with statins, but only 1 334 patients (7.10%) were treated with statins and ezetimibe. Of the selected patients, 4 986 patients (26.52%) were at low risk, 6 515 patients (34.65%) were at intermediate risk, and 7 299 patients (38.82%) were at high risk. The combined lipid-lowering treatment rates of statin and ezetimibe in the middle-and high-risk patients were 7.43% (484/6 515) and 7.48% (546/7 299), respectively. The results of multivariate logistic regression analysis showed that increasing age, male, diabetes mellitus, stroke, and history of percutaneous coronary intervention (PCI) were positively associated with LDL-C standards in patients with CHD and hypertension, whereas obesity and acute myocardial infarction (AMI) were negatively associated with LDL-C standards (all P<0.01). Conclusions:The rate of achieving the standard LDL-C in patients with CHD combined with hypertension was low in China. Although the majority of patients had received moderate-intensity statin therapy, the proportion of statin-treated patients combined with ezetimibe was extremely low. The proportion of high-risk patients with recurrent cardiovascular events was higher in patients with CHD and hypertension in China, whereas the proportion of such patients receiving statin combined with ezetimibe lipid-lowering therapy was lower. This study also found that increasing age, male, diabetes mellitus, stroke, and history of PCI were positively associated with LDL-C standards, while obesity and AMI were negatively associated with LDL-C standards in patients with CHD and hypertension.

Objective:To investigate the effects of regular yoga practice on pulmonary function and mechanical parameters of diaphragm.Methods:Eighty regular yoga practitioners, including 40 practicing for≤5 year (yoga≤5 years group) and 40 for>5 year (yoga>5 years group) were recruited in Shanxi Norman Bethune Hospital from January 2024 to April 2024; and 40 sedentary subjects were also recruited as the control group. The diaphragmatic motion was evaluated by two-dimensional ultrasound and speckle tracking ultrasound in all subjects, the parameters, including displacement, fractional thickening, strain and strain rate of diaphragm were observed at rest and deep breathing. At the same time, the pulmonary function tests were performed, the indexes including forced vital capacity (FVC), forced expiratory volume in 1 second (FEV 1) and one-second rate (FEV 1/FVC) were measured in all subjects. The mechanical parameters of diaphragm and the pulmonary function were compared among three groups. Results:There were no significant differences in gender ( χ2= 0.346), age ( F=1.16), height ( F=0.45), weight ( F=0.11) and body mass index (BMI) ( F=0.07) among the three groups (all P>0.05).At the rest status, there was no significant difference in diaphragm displacement, thickening rate and strain among three groups ( F=1.21, 2.10 and 0.23,all P>0.05); the strain rate of yoga>5 years group was lower than that of other two groups ( t=-4.23、-4.10, all P<0.05); however, there was no significant difference between yoga≤5 years group and control group ( t=-0.06, P>0.05). During deep breathing, the increment of displacement, thickening rate, strain and strain rate of diaphragm in yoga>5 years group was larger than that in other tow groups, while the increment of yoga≤5 years group was larger than that in control group ( F=25.82, 60.99, 17.29 and 52.46, all P<0.05); the increment of FVC, FEV 1 and FEV 1/FVC in yoga>5 years group was larger than other two groups, whilc the increment of yoga≤5 years group was larger than that of sedentary group (F=4.49, 7.32 and 39.71, all P<0.05). The diaphragmatic displacement was positively correlated with FVC ( r=0.290, P<0.05), and diaphragmatic displacement and thickening rate were positively correlated with FEV 1 and FEV 1/FVC (0.333 and 0.448, 0.231 and 0.599, all P<0.05), the strain and strain rate of diaphragm were negatively correlated with FEV 1 and FEV 1/FVC ( r=-0.399 and -0.719, -0.355 and -0.796, all P<0.05). Conclusion:The regular yoga practice can improve the movement capacity and efficiency of diaphragm, improve the pulmonary function, and there is a negative correlation between the strain rate and the mechanical parameters of diaphragm and FEV 1, FEV 1/FVC.