Objective To investigate the mRNA expression level of the hepatocyte growth factor receptor, c-met, and heterogeneous nuclear ribonucleoprotein, HnRNPA2/B1, in non-small cell lung cancer (NSCLC) patients and their relationships with invasion and metastasis of NSCLC. Methods The mRNA expressions of the c-met and HnRNP A2/B1 in postoperative samples of 46 patients with NSCLC and tissue samples of 30 patients with lung innocence disease as normal controls were detected by RT-PCR, and the efficacies of each marker and combining both of markers in the diagnosis of NSCLC were analyzed by Chi square test. Results The positive rates and relative expression quantity of c-met [65.2 % and (0.903±0.04)]and HnRNP A2/B1 [60.9 % and (0.162±0.04)] in NSCLC were significantly higher than those in control group [26.7 %, (0.205±0.06) and 20.0 %, (0.096±0.02), respectively] (P ＜0.05), and the positive rate of combining both was higher than that of single marker for NSCLC diagnosis(P ＜0.05) . The overexpression of two markers was also significantly correlated with the N stage and clinical stage, but not with age, gender and pathologic types. Conclusion The high expression of c-met and HnRNP A2/B1 in NSCLC may be of significance for the clinical stage. Combining test of two markers provides more sensitivity for NSCLC diagnosis. The expression change of two markers may involve in the carcinogenesis and development of NSCLC.

OBJECTIVETo assess the impact of work-related musculoskeletal disorders (WRMDs) on work ability among workers.

METHODSA total of 1686 workers in various occupations, such as administration and education, were enrolled as subjects using the random cluster sampling method. The WRMDs and work ability of all subjects were evaluated using standardized Nordic questionnaires for the analysis of musculoskeletal symptoms and the Work Ability Index (WAI) scale, respectively. Comparison of work ability and its classification between the disease group and the non-disease group was performed by paired t test, RxC table χ2 test, and the Wilcoxon rank-sum test. The relationship between work duration and work ability was analyzed by the Spearman correlation test and a multi-level model.

RESULTS(1). The work ability of workers in the disease group was significantly lower than that in the non-disease group (P<0.0 1). (2) There were significant differences in work ability between workers with different work durations (<10 years, 10-20 years, and ≥20 years) (F=22.124, P< 0.01). With the increase in work duration, the work ability of workers declined in both groups, and the work ability of workers in the disease group (Spearman coefficient rs=-0. 172, P<0.01) had a more significant decline than that in the non-disease group (Spearman coefficient rs=-0.104, P<0.01). WRMDs were important risk factors for the decrease in work ability among workers. (3) There were significant differences in constituent ratios and levels of work ability classification between the disease group and the non-disease group (χ2=121.097, P<0.01; Z=-10.699, P<0.01). The proportions of workers with poor and medium work ability in the disease group were significantly higher than those in the non-disease group, while the proportion of works with excellent work ability in the disease group was significantly lower than that in the non-disease group. The similar characteristics in constituent ratios and levels of work ability classification could be found between the disease group and the non- disease group in various occupations (P<0.01).

CONCLUSIONWRMDs have a harmful effect on the work ability of workers, and the work ability of workers substantially declines with the increase in exposure time (work duration).

Humans ; Musculoskeletal Diseases ; physiopathology ; Occupational Health ; Occupations ; Risk Factors ; Surveys and Questionnaires ; Work Performance

OBJECTIVETo characterize the distribution of work-related musculoskeletal disorders (WRMD) among the occupational population.

METHODSA total of 1686 people of various occupations were recruited with random cluster sampling. Standardized Nordic questionnaires for the analysis of musculoskeletal systems were used to evaluate WRMD at the neck, shoulder, or lower back in the past one year. The annual prevalence of WRMD was determined. Difference analysis was performed with t-test, ANOVA, or chi-square test. The relationship between personal characteristics and WRMD was analyzed by unconditional logistic regression.

RESULTS(1) WRMD were most frequently observed at the neck, followed by the lower back, and was least observed at the shoulder (P < 0.05). The prevalence of WRMD among mental workers was significantly higher than those among physical workers and mental-physical workers (P < 0.01). The prevalence of WRMD among female workers was significantly higher than that among male workers (P < 0.05). (2) In general, the prevalence of WRMD significantly rose with the increases in age (<30, 30∼, 40∼, and ≥ 50 years) or working years (<10, 10∼, and ≥ 20 years) (P < 0.05). (3) In the face of sickness or injury, physical workers and mental workers showed a relatively high absence rate but a relatively low medical visiting rate (13.05%). (4) Unconditional logistic regression analysis showed that mental work, gender, and working year were the main influential factors for WRMD among workers.

CONCLUSIONWorkers of different types of occupation, genders, ages, and working years have different risks of WRMD at the neck, shoulder, and lower back.

Adult ; Female ; Humans ; Logistic Models ; Male ; Middle Aged ; Musculoskeletal Diseases ; epidemiology ; Occupational Diseases ; epidemiology

Oleanolic acid (OA) has a wide variety of bioactivities such as hepatoprotective, anti-inflammatory and anti-cancer activity and is used for medicinal purposes in many Asian countries. In the present study, the effect of OA on induction of autophagy in human hepatocellular carcinoma HepG2 and SMC7721 cells and the related mechanisms were investigated. MTT assay showed that OA significantly inhibited HepG2 and SMC7721 cells growth. OA treatment enhanced formation of autophagic vacuoles as revealed by monodansylcadaverine (MDC) staining. At the same time, increasing punctuate distribution of microtubule-associated protein 1 light chain 3 (LC3) and an increasing ratio of LC3-II to LC3-I were also triggered by OA incubation. In addition, OA-induced cell death was signifi cantly inhibited by autophagy inhibitors 3-methyladenine (3-MA) and chloroquine (CQ) pretreatment. And we found out that OA can suppress the PI3K/Akt1/mTOR signaling pathway. Furthermore, our data suggested that OA-triggered autophagy was ROS-dependent as demonstrated by elevated cellular ROS levels by OA treatment. When ROS was cleared by N-acetylcysteine (NAC), OA-induced LC3-II convertsion and cell death were all reversed. Taken together, our results suggest that OA exerts anticancer eff ect via autophagic cell death in hepatocellular carcinoma.
Acetylcysteine ; Asian Continental Ancestry Group ; Autophagy* ; Carcinoma, Hepatocellular* ; Cell Death ; Chloroquine ; Humans ; Microtubule-Associated Proteins ; Oleanolic Acid* ; Vacuoles

To explore how to create and optimize a promotion index system of medical quality evaluation, this article focuses on the hospital visiting process from patients, using analyzing collected those index system from couples of Grade Ⅲ hospitals in Beijing, and combining the results of literal study, field study and specialist consult, according to the different situation of general hospitals and specially hospitals, with the spirit of "maintaining the patients benefits, safeguarding the patients safety,and enhancing the medical quality", introduces the framework of the promotion index system, the rules to select the indicator, and so on, and discusses several problerns related to creating the index system.

Objective:To analyze the clinical characteristics and prognosis of infants with rhabdomyosarcoma (RMS), thus enhancing the understanding of this disease.Methods:Clinical data of all RMS patients younger than 12 months treated in the Hematology Oncology Center, Beijing Children′s Hospital, Capital Medical University from May 2006 to June 2019 were retrospectively analyzed, including the age, gender, histological type, tumor primary site, tumor size, and the prognosis.Patients were followed up until December 31, 2019.The 3-year event free survival (EFS) rate of children was performed by plotting the Kaplan-Meier survival curves.Results:A total of 15 RMS children younger than 12 months were enrolled, accounting for 4.9% of all RMS cases in the same period, including 6 males and 9 females.The median age at diagnosis was 7.0 months (3.0-11.5 months). Classified by the primary site, 40.0% (6 cases) located in the head and neck, followed by 26.7% (4 cases) located in the limbs, 26.7% (4 cases) located in other parts, and 6.7% (1 case) located in the urogenital system.Embryonal RMS, alveolar RMS and spindle cell RMS accounted for 46.6% (7 cases), 26.7% (4 cases), and 26.7% (4 cases), respectively.Ten cases (66.7%) were stage Intergroup Rhabdomyosarcoma Study (IRS)-Ⅲ and 1 case (6.7%) was in stage Ⅳ.There were 10 cases (66.6%) in the middle-risk group, 4 cases (26.7%) in the low-risk group, and 1 case (6.7%) in the high-risk group.Two cases had a larger than 5 cm primary tumor; lymph node involvement was confirmed in 3 cases, and pulmonary metastasis occurred in 1 case at the time of diagnosis.All children were treated with chemotherapy, and 13 cases received postoperative chemotherapy and 1 case received preoperative chemotherapy.One case were not operated.Only 3 children underwent radiotherapy, including 1 case underwent particle implantation and 2 cases received external radiotherapy.Among the 15 children with RMS, 5 cases had relapse and disease progression with the 3-year EFS rate of (59.1±14.5)%, and 2 died with the 3-year overall survival rate of (80.8±12.6)%.Conclusions:The median age of diagnosis of RMS in single-center infants is 7 months.Head and neck are the most common primary sites of RMS.Nearly 50% of the children have the primary site of RMS with poor prognosis.More than a quarter of the pathological subtypes are the spindle cell type.Local treatment significantly influences the local progression or recurrence of RMS.

Objective:To summarize the clinical features, treatment and outcomes of cervical neuroblastoma (NB) subjected to multi-disciplinary treatment.Methods:The clinical features of cervical NB patients who were admitted to Beijing Children′s Hospital, Capital Medical University from February 2015 to October 2018, were retrospectively analyzed.The tumor makers [lactate dehydrogenase(LDH), neuron-specific enolase(NSE), urine homovanillic acid/creatinine(HVA/Crn), and urine vanillyl-mandelic acid/creatinine(VMA/Crn)], index of tumor burden(KTB), bone marrow examination, histopathologic types, N- MYC, gene amplification and 11q23 depletion type, staging and grouping, treatment and outcomes were analyzed.Follow-up was ended on March 31 st, 2019. Results:The 13 cervical NB patients aged from 1 month to 47 months (median age: 10 months), and 8 patients (61.5%) were younger than 18 months old.The course of disease ranged from 0.5 to 24.0 months (median course: more than 1 month). Seven patients (53.8%) presented with cervical masses.According to International Neuroblastoma Staging System (INSS), 8 patients (61.5%) were identified as stage Ⅱ, 3 patients (23.1%) as stage Ⅲ, and 2 patients (15.4%) as stage Ⅳ.There were 8 patients (61.1%) at low risk, 4 patients (30.8%) at intermediate risk, 1 patient (7.7%) at high risk.As for the laboratory examinations, LDH was increased in 7 patients (53.8%), and normal in 5 patients (38.5%). NSE was increased in 9 patients (69.2%), and normal in 4 patients (30.8%). Urine VMA/Crn was increased in 5 patients (38.5%), and normal in 8 patients (61.5%). HVA/Crn was increased in 8 patients (61.5%), and normal in 5 patients (38.5%). KTB was increased in 5 patients (38.5%), and normal in 5 patients (38.5%). No NB cell was detected in bone marrow of 13 patients.The pathologic type was NB in 9 patients (69.2%), and ganglioneuroma in 4 patients (30.8%). N-MYC gene amplification and 11q depletion were not detected.All the 13 patients accepted regular chemotherapy, radiotherapy and primary tumor resection in accordance with the staging and clinical risk grouping.The range of follow-up time was 5 to 48 months (median: 24 months). All of the patients fi-nished their treatment and were followed up regularly.Nine patients (69.2%) achieved complete remission, 4 patients (30.8%) achieved partial remission, and none of the patients had progression of disease.Conclusions:Cervical NB subjected to multi-disciplinary treatment has a smaller age at admission, mostly presented with cervical masses and rarely accompanied with distant metastasis.They are mostly at low risk or intermediate risk, and can achieve good outcomes after regular treatment.

Objective:To analyze the clinical features and prognosis of pediatric non-rhabdomyosarcoma soft tissue sarcoma (NRSTS), and further understand these tumors.Methods:Twenty-nine NRSTS children were admitted to the Hematological Oncology Ward of Beijing Children′s Hospital from June 2011 to May 2018.The clinical and pathological data of these children were collected, and the relationships of the prognosis with clinical characteristics Intergroup Rhabdomyosarcoma Study(IRS) stage, Children′s Oncology Group(COG) risk grouping were analyzed.All the patients were followed up until October 31, 2018.The survival analysis was performed by Kaplan-Meier method.Results:There were 14 boys and 15 girls in the enrolled 29 children, aging from 7 to 169 months, with a median age of 59.5 months.There were 10 pathological types, including synovial sarcoma, infantile fibrosarcoma and malignant rhabdomyoid tumors in 5 cases, and other pathological types in 14 cases.Tumors originated from the head and neck in 10 cases, limbs or trunk in 6 cases, visceral sites in 13 cases.Ten cases showed distant metastasis.There were 12 cases at IRS stage Ⅰand Ⅱ, and 17 cases of stage Ⅲ and Ⅳ.All the children were treated with surgery and chemotherapy with or without radiotherapy.Nine cases received preoperative chemotherapy, 17 cases received postoperative chemotherapy, 3 cases could not be resected surgically.The follow-up period ranged from 4 to 89 months, with a median follow-up of 16 months.Six of 29 children died, including 3 cases of malignant rhabdomyoid sarcoma.The 2-year overall survival(OS) rate of all the children was 77.4% and the 2-year event-free survival (EFS) rate of all the children was 53.2%.By analyzing the clinical factors, it was found that the IRS stage, COG risk group, primary sites were related to prognosis.The 2-year EFS rate of children with IRS Ⅰ-Ⅱ and Ⅲ-Ⅳ were 75.0% and 35.9%, respectively ( χ2=7.303, P=0.007), the 2-year OS rate was 100% and 61.8%, respectively( χ2=4.81, P=0.028); The 2-year EFS of children in COG low-risk group and median/high-risk group were 66.7% and 44.7%, respectively( χ2=4.155, P=0.042), the 2-year OS rate of children in COG low and median/high-risk was 100% and 66.3%, respectively( χ2=3.383, P=0.066); the 2-year OS rate of children in visceral and non-visceral sites were 59.3% and 92.9%, respectively ( χ2=4.202, P=0.04). Conclusions:NRSTS in children is heterogeneous, and surgery is the main treatment. Children with primary tumors located in visceral sites and at IRS Ⅲ-Ⅳ had poor outcomes.

Objective: To study the difference expression and diagnostic value of ribosomal protein L5 (RPL5) in papillary thyroid carcinoma (PTC) of children and adults. Methods: Realtime-PCR was performed to detect the expression of RPL5 in 22 PTC tissues and 13 pericarcinous tissues. Receiver operating characteristic (ROC) curve and Youden's index were used to evaluate the diagnostic value of RPL5 in PTC of children and adults. Results: The expression of RPL5 in PTC tissues was higher than in pericarcinous tissues. The area under curve (AUC) was 0.820 (P=0.001), and Youden′s index was 0.568. The expression of RPL5 in PTC of adults was higher than children (P<0.05). The AUC and Youden's index were respectively 0.721 (P=0.069) and 0.414 in children, whereas being respectively 0.896 (P=0.0005) and 0.709 in adults. RPL5 in diagnosis of PTC of adults was better than CK19, Galectin-3 and TPO, which are commonly used for the pathologic diagnosis of PTC. Conclusion The expression of RPL5 in PTC is higher than pericarcinous tissues, and its expression in PTC of adults is higher than children. Furthermore, PTC is a potential indicator for diagnosis of PTC.