Objective To explore the clinical value of CT-guided 125I radioactive seeds implantation and chemical ablation for malignant retroperitoneal tumors.Methods Because of the rejection of the second surgery resection and insensitivity of chemotherapy and radiotherapy,nineteen patients with recurrent or metastasis malignant retroperitoneal tumors were treated by CT-guided125I radioactive seeds implantation according to TPS or Halarism's experienced function,and percutaneous ethanol injection was performed if the way of punctuation Was limited.The extent of pain relief was assessed one month later after therapy.All the patients received enhanced CT scan 6 months after the first treatment,and imaging evaluation wag performed according to WHO criteria.Results For the 19 patients.pain relief Was achieved more or less in all patients.Imaging evaluation revealed complete relief,partial relief,no change in 10,7,2 cases respectively.All patients are still alive now.The longest followed span is 31 months.and the shortest is 7 months,the average followed span is 13.5 months.Conclusion CT-guided 125I radioactive seeds implantation and chemical ablation ore effective for malignant retropefitoneal tumors.

Objective To observe the influence of human umbilical cord wharton′s jelly‐mesenchymal stem cells(WJ‐MHCs) on the tumor necrosis factorα (TNF‐α) and N‐terminal pro‐brain natriuretic peptide(NT‐proBNP) in rats with heart failure of a‐cute myocardial infarction .Methods Totally 80 male rat models of heart failure of acute myocardial infarction were made by isopre‐naline(ISO) 200 mg/kg injected subcutaneously twice at an interval of 24 hours .After one week ,24 survival rats were randomly di‐vided into WJ‐M HCs transplantation group and normal control group .Sham group was made of 12 health rats ,and then each of the three groups was subdivided into pre‐transplantation group and post‐transplantation group 4 weeks later .WJ‐MHCs transplantation group was transplanted with WJ‐MHCs with DAPI labeled after ISO injected one week .Sham group and normal group were un‐treated and normally bred .The left ventricular ejection fraction(LVEF) measured by before transplantation and post‐transplantation 4 weeks later .The injected cells and the expression of TNF‐αwas measured .Results Compared to pre‐transplantation group ,WJ‐M HCs transplantation group increased the LVEF(P<0 .05);compared to pre‐transplantation and normal control ,WJ‐M HCs trans‐plantation group reduced the TNF‐αand NT‐proBNP in the serum(P<0 .05)and the expression of TNF‐α from the heart tissue (P<0 .05);compared to normal transplantation ,WJ‐M HCs transplantation group reduced the mortality from 33 .3% to 16 .7% ;immunofluorescence demonstrated that transplanted cells were still found alive in the heart after transplantation 4 weeks later .Con‐clusion Transplantation of WJ‐MHCS down‐regulates TNF‐α and NT‐proBNP in the serum in the serum and the expression of TNF‐αfrom the heart tissue and up‐regulates the LVEF in rats with heart failure of acute myocardial infarction .

Objective:To investigate the efficacy and safety of nerve decompression surgery through the lateral-rectus approach for sacral plexus nerve injury after sacral fracture fixation.Methods:A retrospective study was conducted to analyze the 10 patients with combined sacral plexus nerve injury after sacral fracture fixation who had been admitted to Department of Orthopedics, Xiangya Hospital between May 2022 and May 2023. There were 2 males and 8 females with an age of 16.5 (15.0, 26.3) years. At the time of injury, the patients had been clearly diagnosed as sacral fracture combined with sacral plexus nerve injury. By the Denis classification of sacral fractures: 7 cases of type Ⅱ and 3 cases of type Ⅲ; sacral plexus nerve injury sites: 1 case of L 4, 8 cases of L 5, 7 cases of S 1, and 2 cases of S 2. All of them were treated with reduction and internal fixation via the posterior approach within 2 weeks after injury, but after surgery their manifestations of sacral plexus nerve injury still persisted which were confirmed by CT, magnetic resonance imaging and neuromuscular electromyography. Therefore, at (4.0±2.3) months after internal fixation, all patients were treated with nerve decompression surgery through the lateral-rectus approach. The operative time, intraoperative bleeding, length of hospitalization, Gibbons nerve damage score and neurological recovery at the last follow-up were recorded. Results:In the 10 patients, the operative time was (112.0±21.5) min, intraoperative bleeding (215.0±91.3) mL, and length of hospitalization 7.0 (6.0, 8.5) d. Intraoperatively, sacral plexus nerve compression was found in 9 cases (6 cases of nerve compression and pulling due to fracture displacement, 3 cases of nerve entrapment due to soft tissue scar adhesion), and 1 case of nerve root avulsion injury. No other intraoperative complications occurred. The 10 patients were followed up for (9.2±2.3) months after surgery. At the last follow-up, the Gibbons score for the 10 patients improved from preoperative 3.0 (3.0, 3.3) points to 1.0 (1.0, 2.0) point, and their British Medical Research Council (BMRC) nerve injury grading was improved from the preoperative grade 0.0 (0.0, 1.3) to grade 3.5 (2.8, 4.0) (1 case of M5, 4 cases of M4, 4 cases of M3, and 1 case of M2).Conclusion:The lateral-rectus approach is effective and safe for exploration and decompression of the sacral plexus nerve in patients combined with sacral plexus nerve injury despite sacral fracture fixation.

Objective To summarize and analyze the perioperative complications of irreversible electroporation (IRE) ablation in treating tumors at different locations and to discuss their managements. Methods A total of 200 patients with tumors, including pancreatic tumor (n=71), liver tumor (n=64) and other tumors (n =65), were enrolled in this study. All patients received IRE ablation treatment. The perioperative complications were recorded and the data were statistically analyzed. The causes of severe complications and the treatment of complications were discussed. Results None of the patients died during the course of IRE ablation procedure. Severe postoperative complications occurred in the patients with pancreatic tumor or liver tumor, including duodenal artery bleeding in 3 patients with pancreatic tumor, which occurred at 10 days, 11 days and 15 days after IRE ablation respectively, and gastrointestinal bleeding (n =1) and biliary septic shock (n=1) in 2 patients with liver tumor, which occurred at 9 days after IRE ablation, the clinical symptoms were controlled after interventional embolization and/or vascular ligation together with anti-infective therapy. All minor complications were relieved after symptomatic treatment within 14 days. Conclusion IRE ablation has less systemic inflammatory response, and both the intraoperative and postoperative adverse reactions can be easily controlled, besides, IRE ablation has higher clinical safety. Although IRE ablation procedure may damage the internal or peripheral vessels of the pancreatic tumor, this severe complications can be effectively avoided if proper measures are adopted based on the causes of complications. (J Intervent Radiol, 2018, 27: 223-227)

Objective To evaluate the efficacy and safety of epalrestat, an aldose reductase inhibitor, and epalrestat plus methylcobalamine on diabetic peripheral neuropathy, as compared with methylcobalamine. Methods A total of 444 subjects with diabetic neuropathy were enrolled in the study, and divided into methylcobalamine group ( n= 145 ) , epalrestat group ( n = 143 ) , and methylcobalamine combined with epalrestat group ( n = 156 ) . Therapeutic efficacay was assessed in terms of clinical symptoms and physical examinations by using Michigan Neuropathy Screening Instrument ( MNSI ) , and electrophysiological assessments. Results After 4 to 12-weeks′treatment, symptoms and signs of neuropathy ( using MNSI ) are significantly improved in the three groups ( P<0. 01). The mean changes of MNSI ( questionnaire) score from baseline were higher in epalrestat group and methylcobalamine combined with epalrestat group as compared with that of methylcobalamine group(P<0. 05), but no difference was detected in the change of MNSI ( physical examination ) score from baseline among three groups. After treatment for 12 weeks, motor nerve conduction velocity ( MNCV ) was significantly improved in epalrestat group and methylcobalamine combined with epalrestat group(P<0. 05), but no difference was detected in MNCV at 12 week among three groups(P>0. 05). Conclusion Epalrestat is effective and safe in the treatment of diabetic neuropathy. Furthermore, epalrestat is more efficacious in ameliorating symptoms and MNCV of neuropathy than methylcobalamine. However, while no improved efficacy is shown with the combined treatment.

Objective:To investigate the effects of mesenchymal stem cells-derived exosomes (MSC-Exos) secreted by mesenchymal stem cells (MSCs) induced by astragaloside IV (AS-IV) on the biological function and pyroptosis of human umbilical vein endothelial cells (HUVECs) injured by high glucose.Methods:After human umbilical cord blood mesenchymal stem cells (hUCBMSCs) were intervened with 400 mg/L of AS-IV, exosomes were extracted, and then the morphology and specific markers of exosomes were identified. Human umbilical vein endothelial cells (HUVECs) were cultured in a medium with a glucose concentration of 30 mmol/L to prepare a high glucose-impaired HUVECs model. High glucose-impaired HUVECs were randomly divided into experimental and model groups, with the experimental group intervened with 100 μg/ml of MSC-Exos and the model group intervened with an equal volume of PBS solution, while a blank control group was also set up. Cell counting Kit-8 (CCK-8) cell proliferation assay, adhesion assay, matrigel tube formation assay and scratch assay were used to detect the effects of AS-IV-mediated MSC-Exos on the proliferation, adhesion, tube formation and migrationability of HUVECs; Western blot and real time fluorescence quantitative polymerase chain reaction (qRT-PCR) were used to detect the protein and mRNA expression of scorch death-related molecules, such as Caspase-1, GSDMD (Gasdermin D) and NLRP3 in each group.Results:The proliferation, adhesion number, tube number and migration width of HUVECs cells were significantly lower than those in the blank group ( P<0.05); The expression of Caspase-1, GSDMD, NLRP3 protein and their mRNA increased significantly ( P<0.001); Under the intervention of MSC-Exos mediated by AS-IV, the cell proliferation, adhesion number, tube number and migration width of HUVECs were significantly higher than those in the model group ( P<0.05); The expression of Caspase-1, GSDMD, NLRP3 protein and their mRNA decreased, with statistically significant difference ( P<0.05). Conclusions:AS-IV mediated MSC-Exos can significantly improve the biological function of high glucose-impaired endothelial cells, and its mechanism may be related to anti-pyroptosis.

Background::Non-smokers account for a large proportion of lung cancer patients, especially in Asia, but the attention paid to them is limited compared with smokers. In non-smokers, males display a risk for lung cancer incidence distinct from the females—even after excluding the influence of smoking; but the knowledge regarding the factors causing the difference is sparse. Based on a large multicenter prospective cancer screening cohort in China, we aimed to elucidate the interpretable sex differences caused by known factors and provide clues for primary and secondary prevention.Methods::Risk factors including demographic characteristics, lifestyle factors, family history of cancer, and baseline comorbidity were obtained from 796,283 Chinese non-smoking participants by the baseline risk assessment completed in 2013 to 2018. Cox regression analysis was performed to assess the sex difference in the risk of lung cancer, and the hazard ratios (HRs) that were adjusted for different known factors were calculated and compared to determine the proportion of excess risk and to explain the existing risk factors.Results::With a median follow-up of 4.80 years, 3351 subjects who were diagnosed with lung cancer were selected in the analysis. The lung cancer risk of males was significantly higher than that of females; the HRs in all male non-smokers were 1.29 (95% confidence interval [CI]: 1.20-1.38) after adjusting for the age and 1.38 (95% CI: 1.28-1.50) after adjusting for all factors, which suggested that known factors could not explain the sex difference in the risk of lung cancer in non-smokers. Known factors were 7% (|1.29-1.38|/1.29) more harmful in women than in men. For adenocarcinoma, women showed excess risk higher than men, contrary to squamous cell carcinoma; after adjusting for all factors, 47% ([1.30-1.16]/[1.30-1]) and 4% ([7.02-6.75]/[7.02-1])) of the excess risk was explainable in adenocarcinoma and squamous cell carcinoma. The main causes of gender differences in lung cancer risk were lifestyle factors, baseline comorbidity, and family history.Conclusions::Significant gender differences in the risk of lung cancer were discovered in China non-smokers. Existing risk factors did not explain the excess lung cancer risk of all non-smoking men, and the internal causes for the excess risk still need to be explored; most known risk factors were more harmful to non-smoking women; further exploring the causes of the sex difference would help to improve the prevention and screening programs and protect the non-smoking males from lung cancers.