Objective:To explore the feasibility and safety of laparoscopic combined with colonoscopic transanal total mesorectal resection (laparoscopic combined with colonoscopic taTME) in the treatment of rectal cancer.Methods:The descriptive case series analysis method was adopted. From October 2023 to February 2024, the Department of Colorectal Surgery of Li Huili Hospital, Ningbo Medical Center, performed laparoscopic combined with colonoscopic taTME on 8 patients with rectal cancer. Among the 8 patients, there were 5 males and 3 females, aged from 56 to 74 years old, with a body mass index (BMI) of 20.3-26.7 kg/m2. All patients were pathologically diagnosed with rectal adenocarcinoma. The long diameter of the tumors was 2.0-6.5 cm, the lower edge of the tumors was 3-5 cm away from the anal verge. In terms of tumor TNM staging, there were 2 cases in stage I, 3 cases in stage II, and 3 cases in stage III. The surgical conditions, postoperative curative effects, and the occurrence of complications were observed.Results:All 8 patients successfully completed laparoscopic combined with colonscopic taTME, and there was no conversion to laparotomy. The operative time was 260 to 335 minutes, the intraoperative blood loss was 50 to 100 milliliters, and the distance from the tumor to the anal margin was 0.8 to 2.0 centimeters. All patients in the group underwent protective end ileostomy, and none of them underwent permanent enterostomy. Specimens were removed from the right lower abdomen in 7 cases and through the anus in 1 case. There was no residual cancer cells at the pathological resection margins postoperatively. All patients ambulated on the first day after the operation, and began to eat on the 2nd to 3rd day after the operation. Anastomotic leakage occurred in 1 patient after the operation, and the condition improved after conservative treatment. The length of hospital stay was 21 days. The other 7 patients were discharged from the hospital 8 to 12 days after the operation. Two patients completed the ileostomy closure surgery 3 months after the operation and recovered well. The patients were followed up until April 2024, during which there were no cases of tumor recurrence or death.Conclusion:For appropriate cases, laparoscopic combined with colonoscopic taTME is safe and feasible.

Objective:To explore the feasibility and safety of laparoscopic combined with colonoscopic transanal total mesorectal resection (laparoscopic combined with colonoscopic taTME) in the treatment of rectal cancer.Methods:The descriptive case series analysis method was adopted. From October 2023 to February 2024, the Department of Colorectal Surgery of Li Huili Hospital, Ningbo Medical Center, performed laparoscopic combined with colonoscopic taTME on 8 patients with rectal cancer. Among the 8 patients, there were 5 males and 3 females, aged from 56 to 74 years old, with a body mass index (BMI) of 20.3-26.7 kg/m2. All patients were pathologically diagnosed with rectal adenocarcinoma. The long diameter of the tumors was 2.0-6.5 cm, the lower edge of the tumors was 3-5 cm away from the anal verge. In terms of tumor TNM staging, there were 2 cases in stage I, 3 cases in stage II, and 3 cases in stage III. The surgical conditions, postoperative curative effects, and the occurrence of complications were observed.Results:All 8 patients successfully completed laparoscopic combined with colonscopic taTME, and there was no conversion to laparotomy. The operative time was 260 to 335 minutes, the intraoperative blood loss was 50 to 100 milliliters, and the distance from the tumor to the anal margin was 0.8 to 2.0 centimeters. All patients in the group underwent protective end ileostomy, and none of them underwent permanent enterostomy. Specimens were removed from the right lower abdomen in 7 cases and through the anus in 1 case. There was no residual cancer cells at the pathological resection margins postoperatively. All patients ambulated on the first day after the operation, and began to eat on the 2nd to 3rd day after the operation. Anastomotic leakage occurred in 1 patient after the operation, and the condition improved after conservative treatment. The length of hospital stay was 21 days. The other 7 patients were discharged from the hospital 8 to 12 days after the operation. Two patients completed the ileostomy closure surgery 3 months after the operation and recovered well. The patients were followed up until April 2024, during which there were no cases of tumor recurrence or death.Conclusion:For appropriate cases, laparoscopic combined with colonoscopic taTME is safe and feasible.

Objective:To analyze the current situation and influencing factors of work-related musculoskeletal disorders (WMSDs) among scientific researchers in a computer workstation of a high-tech aerospace enterprise, and to provide data support for the improvement of occupational health management policies in this type of enterprise.Methods:From March to April 2023, using convenient sampling method, 1398 scientific researchers using computer workstations in an aerospace high-tech enterprise in Beijing were selected as the research subjects. The incidence of WMSDs in various parts of the body was investigated by using the Musculoskeletal Disorders Questionnaire, and the influencing factors of WMSDs in neck, lower back, shoulder and upper back were analyzed by logistic regression.Results:The total incidence of WMSDs was 55.4% (774/1398) in the scientific researchers who used computer workstations. The top 4 body parts in WMSDs incidence were neck (24.3%, 340/1398), lower back (20.4%, 285/1398), shoulder (18.7%, 262/1398), upper back (12.7%, 177/1398). The results of multivariate logistic regression analysis showed that feeling slightly tired and tired after work, setting a rest/break time of 10 to 15 min before the next continuous job, and operating computer for 2 to 4 hours and >4 hours were the influencing factors for the occurrence of neck WMSDs ( OR=3.08, 1.90, 0.60, 2.00, 1.49, P<0.05). Female, 5-<10 years of working experience, feeling slightly tired, tired and very tired after work, operating computer for 6-<8 hours and 8-10 hours a day were all the influencing factors for the occurrence of WMSDs in the lower back ( OR=1.82, 0.64, 2.95, 1.80, 1.61, 1.82, 1.73, P<0.05). Female, feeling slightly tired and tired after work were the influencing factors of shoulder WMSDs occurrence ( OR=2.42, 2.09, 2.00, P<0.05). Female, 5-<10 years, 10-15 years of working age, 1-3 times of physical exercise/quarter, feeling slightly tired, tired and very tired after work were the influencing factors for the occurrence of upper back WMSDs ( OR=2.76, 2.19, 2.78, 0.48, 4.20, 2.66, 2.19, P<0.05) . Conclusion:The incidence of WMSDs among scientific researchers in computer workstations of aerospace high-tech enterprises is high, which is closely related to individual characteristics and workstation usage characteristics. Measures should be taken to prevent and improve the WMSDs status of scientific researchers.

Objective:To analyze the current situation and influencing factors of work-related musculoskeletal disorders (WMSDs) among scientific researchers in a computer workstation of a high-tech aerospace enterprise, and to provide data support for the improvement of occupational health management policies in this type of enterprise.Methods:From March to April 2023, using convenient sampling method, 1398 scientific researchers using computer workstations in an aerospace high-tech enterprise in Beijing were selected as the research subjects. The incidence of WMSDs in various parts of the body was investigated by using the Musculoskeletal Disorders Questionnaire, and the influencing factors of WMSDs in neck, lower back, shoulder and upper back were analyzed by logistic regression.Results:The total incidence of WMSDs was 55.4% (774/1398) in the scientific researchers who used computer workstations. The top 4 body parts in WMSDs incidence were neck (24.3%, 340/1398), lower back (20.4%, 285/1398), shoulder (18.7%, 262/1398), upper back (12.7%, 177/1398). The results of multivariate logistic regression analysis showed that feeling slightly tired and tired after work, setting a rest/break time of 10 to 15 min before the next continuous job, and operating computer for 2 to 4 hours and >4 hours were the influencing factors for the occurrence of neck WMSDs ( OR=3.08, 1.90, 0.60, 2.00, 1.49, P<0.05). Female, 5-<10 years of working experience, feeling slightly tired, tired and very tired after work, operating computer for 6-<8 hours and 8-10 hours a day were all the influencing factors for the occurrence of WMSDs in the lower back ( OR=1.82, 0.64, 2.95, 1.80, 1.61, 1.82, 1.73, P<0.05). Female, feeling slightly tired and tired after work were the influencing factors of shoulder WMSDs occurrence ( OR=2.42, 2.09, 2.00, P<0.05). Female, 5-<10 years, 10-15 years of working age, 1-3 times of physical exercise/quarter, feeling slightly tired, tired and very tired after work were the influencing factors for the occurrence of upper back WMSDs ( OR=2.76, 2.19, 2.78, 0.48, 4.20, 2.66, 2.19, P<0.05) . Conclusion:The incidence of WMSDs among scientific researchers in computer workstations of aerospace high-tech enterprises is high, which is closely related to individual characteristics and workstation usage characteristics. Measures should be taken to prevent and improve the WMSDs status of scientific researchers.

Early diagnosis, effective treatment and monitoring of recurrence and metastasis of hepatocellular carcinoma have always been difficult problems for clinicians. MicroRNA (miRNA) plays an important role in hepatocellular carcinoma cells' proliferation, apoptosis, metabolism and other processes, and can be released into body fluids such as blood, urine and saliva. The peripheral blood miRNA in hepatocellular carcinoma can be used as biomarkers for the diagnosis, efficacy assessment, recurrence and metastasis monitoring and prognosis judgment, and may even become therapeutic targets for hepatocellular carcinoma. This article summarizes the research progress of circulating miRNA in peripheral blood as markers for diagnosis and treatment monitoring of hepatocellular carcinoma.

Humans ; Vaccines, Inactivated ; COVID-19/prevention & control* ; Vaccination ; Viral Vaccines ; Immunity ; Antibodies, Viral

Objective:To explore the clinical characteristics and influencing factors of myocarditis induced by immune checkpoint inhibitors (ICIs).Methods:Using programmed death receptor-1 (PD-1), nivolumab, pembrolizumab, programmed cell death receptor ligand-1 (PD-L1), atezolizumab, durvalumab, avelumab, cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4), ipilimumab, tremelimumab as keywords respectively, we combined these words with myocarditis or the corresponding Chinese to search.Results:A total of 49 articles were reported, including 64 patients. Nivolumab was the most reported, followed by pembrolizumab and ipilimumab. The average age was (65.47±13.24)years, mainly elderly patients; 37 cases (57.81%) were male; the overall mortality rate was 31.25%(20/64). The clinical symptoms were diverse and nonspecific, with dyspnea being the most common (39/64, 60.94%). Heart biomarkers were elevated in 94.64%(53/56) of the patients. 35 patients (54.69%, 35/64) developed myocarditis after 1-2 doses and 17 patients died. 60 patients received steroids as initial treatment, and immunosuppressive therapies such as infliximab, intravenous immunoglobulin, antithymic globulin, and/or plasmapheresis were used in 25 patients, symptoms improved in 17 cases (68.00%).Conclusions:ICIs can cause myocarditis, with high mortality, and should be closely monitored and timely treatment. Steroids can be used as initial first-line therapy and immunosuppressants and/or plasmapheresis may improve clinical symptoms and survival rate.

In order to study the efficiency of small interfering RNA (siRNA) transfer mediated by cationic liposome, we used luciferase siRNA to evaluate the gene silencing activity in the Hep-2 cells, which were stably transduced with a luciferase gene. The pDNA transfection was studied, and siRNA arrearage assay was conducted to determine the capability of cationic liposome with siRNA. Different concentrations of siRNA was used to silence luciferase gene' activity, and then the result was examined by microplate reader. Cell viability was analyzed after transfection by MTT assay. The results suggested that Lipofectamine 2000 could transfer the pDNA efficiently, and have strong binding capacity with siRNA. The silencing efficiency of luciferase was obtained with low concentration of siRNA. The cell viability was influenced by RNA interference (RNAi) very slightly, but the cell survival rate decreased with the increase of siRNA concentrations. It was well concluded that by optimizing the experimental conditions, cationic liposome can transfer low concentration siRNA to silence target gene's activity efficiently.
Cations ; chemistry ; Drug Carriers ; Genetic Vectors ; Hep G2 Cells ; Humans ; Lipids ; chemistry ; Liposomes ; chemistry ; Luciferases ; genetics ; RNA Interference ; RNA, Small Interfering ; genetics ; Transfection

The comparative analysis of the biological characterization and the genetic background study of EV71 circulating strains is commonly recognized as basic work necessary for development of an effective EV71 vaccine. In this study, we sequenced five EV71 circulating strains, isolated from Fuyang, Hefei, Kunming and Shenzhen city of China and named them FY-23, FY-22, H44, K9 and S1 respectively. The sequence alignment demonstrated their genotypes be C4. The genetic distance of the VP1 gene from these isolates suggested that they were highly co-related with genetic identity similar to other previously reported EV71 strains in China. Additionally, these strains were identified to display some obvious proliferation dynamics and plaque morphology when propagated in Vero cells. However, a distinctive difference in pathogenic ability in neonatal mice was found. Some differences in cross neutralization test & immunogenic analysis were also found. All these results are related to the biological characterization of circulating EV71 strains in China and aid in the development of an EV71 vaccine in the future.

Objective To analyse the clinical features of patients with gastroesophageal reflux disease(GERD)who had scores＜12 using reflux diagnostic questionnaires(RDQ).Methods A comparative and retrospective study was carried out in 148 GERD patients.Among whom 22 patients had low RDQ score(＜12)and 126 patients had high RDQ score(≥12).The differences in heart burn,substantial chest pain,regurgitation,severity and frequency of food reflux between two groups were compared.Nevertheless,the atypical symptoms such as chest distress.abnormal sensation of regurgitation or food reflux was significantly lower in patients with RDQ＜12 than those with RDQ≥accounted for 60.28%of the total RDQ score,whereas the heart burn,regurgitation and food reflux atypical symptom of chest distress was found in 13 patients(59.09%),abnormal sensation of throat in 8 patients(36.36%).cough and asthma in 3 patients(13.63%),headache in 5 patients(22.72%),belching in 9 patients(40.90%),aypnia in 8 patients(36.36%),and anxiety in 6 patients(27.27%).Conclusion RDQ is insensitive to those who have chest pain with no obvious symptom of heart burn,regurgitation or food reflux as well as those with atypical symptom beyond the RDQ.