This study was aimed at investigating the effectiveness of various host nucleic acid removal and non-specific amplifica-tion techniques in animal tissue samples,to increase the accuracy of pathogen identification in tissue samples.Simulated samples were prepared with a mixture of mouse lung tissue homogenates and Klebsiella pneumoniae fluids,and processed with six host nucleic acid removal kits and three non-specific amplification techniques.The effectiveness of each method in removing host DNA and enriching nucleic acids of pathogenic microorganisms was evaluated through real-time fluorescence quantitative PCR and high-throughput se-quencing.For host nucleic acid removal techniques,the method of selective cleavage and quantitative degradation of host DNA(Com-plete5 kit)effectively decreased the host nucleic acid content in tissue samples and increased the relative abundance of pathogen nucleic acids.In contrast,the magnetic bead method for host DNA removal(Next microbiome DNA enrichment Kit kit)was less effec-tive.At lower pathogen concentrations(77 CFU/mL),the Vazyme kit was more effective than the other kits in removing host nucleic acids.Non-specific amplification techniques(MALBAC whole genome amplification,MDA isothermal amplification,and random primer amplification)were not applicable to tissue samples and were not effective in increasing the relative abundance of pathogen nucleic acids.Selective lysis and quantitative degradation of host DNA were suitable for processing tissue samples with high host back-ground and low pathogenic microorganism levels,whereas non-specific amplification methods were not applicable to tissue samples for pre-processing of macro-genome high-throughput sequencing.

This study was aimed at investigating the effectiveness of various host nucleic acid removal and non-specific amplifica-tion techniques in animal tissue samples,to increase the accuracy of pathogen identification in tissue samples.Simulated samples were prepared with a mixture of mouse lung tissue homogenates and Klebsiella pneumoniae fluids,and processed with six host nucleic acid removal kits and three non-specific amplification techniques.The effectiveness of each method in removing host DNA and enriching nucleic acids of pathogenic microorganisms was evaluated through real-time fluorescence quantitative PCR and high-throughput se-quencing.For host nucleic acid removal techniques,the method of selective cleavage and quantitative degradation of host DNA(Com-plete5 kit)effectively decreased the host nucleic acid content in tissue samples and increased the relative abundance of pathogen nucleic acids.In contrast,the magnetic bead method for host DNA removal(Next microbiome DNA enrichment Kit kit)was less effec-tive.At lower pathogen concentrations(77 CFU/mL),the Vazyme kit was more effective than the other kits in removing host nucleic acids.Non-specific amplification techniques(MALBAC whole genome amplification,MDA isothermal amplification,and random primer amplification)were not applicable to tissue samples and were not effective in increasing the relative abundance of pathogen nucleic acids.Selective lysis and quantitative degradation of host DNA were suitable for processing tissue samples with high host back-ground and low pathogenic microorganism levels,whereas non-specific amplification methods were not applicable to tissue samples for pre-processing of macro-genome high-throughput sequencing.

Objective This study focuses on the construction and cultivation of young administrative management per-sonnel in Shanghai's public hospitals,aiming to provide scientific support for the development of high-quality young administra-tive management professionals in public hospitals.Methods Utilizing an anonymous online survey,this research collected data on the current state of subjective well-being and its influencing factors among the targeted groups from hospitals.Analysis of vari-ance and multivariate analysis were conducted to analyze potential factors affecting their sense of well-being.Results A total of 171 cases were included in the survey,with an average score of 80.37.This group of respondents exhibited a higher level of sub-jective well-being compared to the national norm.Notably,young administrative staff who had obtained Shanghai residency,had a surplus income,spent time with family after work,had career advancement opportunities,felt a strong connection to their work's value,and received affirmation from family members,demonstrated higher subjective well-being scores,with significant statisti-cal differences(P＜0.05).Conversely,those with an income ranging from 0 to 100 000,and those who felt overwhelmed by their current roles,scored lower on well-being,with significant statistical differences(P＜0.05).Conclusion This study sug-gests that by bolstering professional security and job stability,fostering a set of correct values and a sense of work identity,and improving job satisfaction and competence,the subjective well-being of this group can be further elevated.This,in turn,can in-ject new momentum into the high-quality development of public hospitals.

Objective To investigate the relationship between impaired glucose regulation (IGR) and slow flow or no reflow (SF/NRF) during percutaneous coronary intervention (PCI) in patients with ST segment elevation myocardial infarction (STEMI). Methods Clinical materials of 80 STEMI patients with SF/NRF and 84 STEMI patients without SF/NRF in the hospital from October 2021 to October 2022 were retrospectively collected, including blood glucose, total cholesterol (TC), triglyceride (TG), cardiac troponin Ⅰ (cTnⅠ), fibrinogen, left ventricular ejection fraction (LVEF), D-dimer, uric acid, homocysteine, the ratio of absolute value of neutrophils to absolute value of lymphocytes (NLR), low density lipoprotein cholesterol (LDL-C), high density lipoprotein cholesterol (HDL-C) and 2 h postprandial blood glucose level. Logistic regression model was used to analyze the influencing factors of SF/NRF in STEMI patients with PCI; the receiver operating characteristic (ROC) curve was used to analyze the diagnostic value of fasting blood glucose and 2 h postprandial blood glucose levels for SF/NRF in STEMI patients with PCI. Results Compared with non-SF/NRF group, the levels of cTnⅠ, fibrinogen and HDL-C in SF/NRF group were significantly higher, while the levels of systolic blood pressure (SBP), diastolic blood pressure (DBP) and NLR were significantly lower (P < 0.05). Compared with non-SF/NRF group, the stent diameter, stent length and the time from chest pain to catheter room in SF/NRF group were significantly longer (P < 0.05). The levels of fasting blood glucose and 2 h postprandial blood glucose in SF/NRF group were significantly higher than those in non-SF/NRF group (P < 0.05). Logistic regression analysis showed that fasting blood glucose and 2 h postprandial blood glucose were the influencing factors of SF/NRF in STEMI patients with PCI, and the area under the curve (AUC) of the combination of the two indicators for diagnosis of SF/NRF in STEMI patients during PCI was significantly higher than that by fasting blood glucose and 2 h postprandial blood glucose alone (Z=3.272, 4.369, P < 0.001). Conclusion IGR is related to SF/NRF during PCI in STEMI patients, and fasting blood glucose and 2 h postprandial blood glucose levels are the influencing factors of SF/NRF in STEMI patients.

BACKGROUND: As the morbidity and mortality in lung cancer keep raising, we are here to discuss the effect of clinical features especially the initial symptomon on diagnosis and follow-up treatment of newly diagnosed lung cancer patients. METHODS: The clinical features of the 500 patients with lung cancer in our hospital from March, 2017 to May, 2017 were analyzed retrospectively, including the initial symptom, stage, biomarkers, pathology, etc. RESULTS: There were 266 famle (53.3%), 372 adenocarcinoma (74.4%), 285 smokers (58%), status score of most patients (98.2%) was 0-1. 58.2% (n=291) of all the patients got biomarkers test, of which epidermal growth factor receptor (EGFR) mutations was 61.2%(178/291), anaplasticlymphoma kinase (ALK) fusion gene positive was 4.1% (12/291). Smoking status, initial symptom, pathological typing, TNM staging and EGFR mutation were the main factors affecting follow-up treatment. CONCLUSIONS Patients with typical symptoms have shorter diagnosis time. Smoking status, lung cancer-related symptoms, pathology, TNM staging and EGFR mutation status are the main factors that affect the follow-up treatment.
Adult ; Aged ; Aged, 80 and over ; Anaplastic Lymphoma Kinase ; China ; ErbB Receptors ; genetics ; metabolism ; Female ; Humans ; Lung Neoplasms ; diagnosis ; genetics ; metabolism ; pathology ; Male ; Middle Aged ; Mutation ; Receptor Protein-Tyrosine Kinases ; genetics ; metabolism ; Retrospective Studies ; Smokers ; statistics & numerical data

Background and objective Among frequently-used tumor markers in lung cancer, carcinoembry-onic antigen (CEA) and carbohydrate antigen 125 (CA125), cytokeratin 19 (CYFRA21-1) and squamous carcinoma antigen (SCC), neuron specific enolase (NSE) and pro-gastrin-releasing peptide (ProGRP) are respectively expressed highly in lung adenocarcinoma, lung squamous carcinoma and small cell lung cancer. By comparing patients with multiple increased tumor markers (group A) and patients with increase of CEA and/or CA125 (group B), this study aims to investigate the utility of multiple increased tumor markers in therapeutic evaluation and prediction of disease relapsing in patients with advanced lung adenocarcinoma. Methods Patients with stage IV lung adenocarcinoma who receiving the first line chemotherapy in Cancer Hospital, Chinese Academy of Medical Sciences were enrolled and ret-rospectively analyzed. Clinical characteristic, serum tumor markers before chemotherapy, efficacy evaluation, progres-sion-free survival (PFS) were analyzed. Results Except CEA and CA125, the highest ratio of increased tumor mark-ersin group A was CYFRA21-1 (93%), then was NSE (36%), SCC (13%) and ProGRP (12%). Patients with multiple increased tumor markers tend to have more distant metastasis(P<0.001)and shorter PFS(median PFS 5.3 months vs 7.3 months, P=0.016). The relapse risk was lower in patients who accepted maintenance therapy than those who didn' t accept maintenance therapy in both groups (P<0.001). Conclusion Patients with multiple increased tumor markers have high risk of relapse, and maintenance therapy can reduce relapse risk.

Objective To observe the safety and short?term efficacy of sigle drug albumin?bound paclitaxel (ABP) in the treatment of elderly patients with advanced non?small cell lung cancer (NSCLC). Methods A total of 23 elderly patients with advanced NSCLC who received weekly ABP regimen (130 mg/m2/week) in our hospital from October 2011 to March 2014 were retrospectively evaluated. The short?term efficacy, progression?free survival ( PFS) , and overall survival ( OS) were analyzed. Results The median treatment period was 4 cycles (2?10 cycles). Partial response, stable disease, progressive disease, overall response rate, and disease control rate were 26.1%, 43.5%, 30.4%, 26.1% and 69.6%, respectively. The median PFS was 5.33 months (95% CI:2.95?7.70 months), while the median OS was 40.33 months (95% CI:29.82?50.83 months). Major adverse events included leucopenia (82.6%), neutropenia (78.3%), nausea or vomiting (56.5%), fatigue (52.2%), peripheral neuropathy (26.1%), myalgia/arthralgia (30.4%), thrombocytopenia ( 13. 0%) and arrhythmia ( 4. 3%) . The patients accompanied with chronic diseases had significantly higher incidence rate of peripheral neuropathy and myalgia/arthralgia compared with the patients without accompanied chronic diseases ( 50. 0% vs. 9. 1% and 66. 7% vs. 9. 1%, P<0. 05 for both ) . Conclusion The weekly single drug ABP regimen is effective and well?tolerated in elderly patients with advanced NSCLC.

Objective The aim of this study was to analyze the trend of incidence, clinicopathological characteristics and therapy of young ( less than 40 years old) patients with advanced lung adenocarcinoma, and to identify the prognostic factors. Methods The clinical data of 198 young patients with advanced lung adenocarcinoma were collected from the Cancer hospital and Institute of Chinese academy of Medical Sciences from January 2001 to June 2012. To analyze the trend of incidence, clinicopathological characteristics and therapy and evaluate the independent prognostic factors affecting survival time with Cox proportional hazards model. Results From 2001 to 2012, the incidence of lung adenocarcinoma in young patients was increased year by year. Among the 198 patients, 92 were males and 106 were females. Their age was from 20 to 40 with a median age of 34 years. Most patients had poorly differentiated adenocarcinoma ( 46. 7%) whereas 36.7% of the cases had moderately differentiated tumor. Among the 198 patients, there were 25 patients with stage ⅢB ( 12. 6%) and 173 ( 87. 4%) cases of stage Ⅳ cancer. The 1?, 3? and 5?year survival rates were 70. 7%, 21. 6% and 10. 3%, respectively. Among the198 cases, patients who received epidermal growth factor receptor?tyrosine kinase inhibitor ( EGFR?TKI ) therapy, the median OS ( 25. 6 months) was significantly longer than that of patients who never received EGFR?TKI therapy (13.3 months) (P<0.001). Since 2009, the number of cases detected for EGFR gene was gradually increased, and the median OS of patients diagnosed from 2010 to 2012 was 22 months, significantly higher than that of 16 months of patients diagnosed during 2001?2009 (P=0.019). The Cox regression analysis showed that the performance status, extra?pulmonary metastasis and whether received EGFR?TKI therapy were independent prognostic factors. Conclusions The incidence rate of lung adenocarcinoma in young patients has an increasing trend. They have a high proportion of women and of poor differentiation. The patients can get benefits from EGFR?TKI therapy. Mutivariate Cox regression analysis shows that the performance status, extra?pulmonary metastasis and whether received EGFR?TKI therapy are independent prognostic factors for young patients with advanced lung adenocarcinoma.

Background and objective Cetuximab is a monoclonal antibody directed against epidermal growth fac-tor receptor. Emerging evidence showed improved effcacy with the addition of cetuximab to chemotherapy in advanced non-small cell lung cancer (NSCLC), but the data in oriental population are limited. hTe aim of this study is to investigate the eff-cacy of cetuximab in combination with chemotherapy in Chinese patients with advanced NSCLC.Methods NSCLC patients receiving cetuximab in combination with chemotherapy in Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College were enrolled and retrospectively analyzed. Clinical characteristic, effcacy, outcome and toxicity data were analyzed.Results A total of 40 patients were enrolled into this study in which 29 were male, 36 with adenocarcinoma. In the 23 patients who had received palliative chemotherapy previously (with a median of 2 prior chemotherapy regimens), the median progression-free survival (PFS) atfer the last prior chemotherapy regimen was 2.3 months. For the overall population, 13 (32.5%) patients achieved partial response atfer cetuximab in combination with chemotherapy. Response rate were 52.9% (9/17) and 17.4% (4/23) in chemotherapy-naive patients and chemotherapy-treated patients, respectively (P=0.018). hTe median PFS was 4.8 months for the overall population. In chemotherapy-naive patients and chemotherapy-treated patients, the median PFS was 8.4 months and 4.1 months, respectively (P=0.062). hTe estimated median overall survival was 17.1 months. Toxicities were generally manageable and no treatment-related deaths occurred.Conclusion Cetuximab in addition to che-motherapy appears to be associated with promising effcacy and acceptable toxicity proifle in Chinese patients with advanced NSCLC. Further validation is needed.

Background and objective Small cell lung cancer (SCLC) is a rapidly growing tumor with character-istic of neuroendocrine cellular function. Neuron speciifc enolase (NSE), pro-gastrin-releasing peptide (ProGRP) and lactic dehydrogenase (LDH) are valuable in diagnosis and treatment of SCLC. By analyzing the variation of NSE, ProGRP and LDH before and atfer treatment, the aim of this study is to investigate the effcacy of tumor markers in diagnostic staging, therapeu-tic evaluation and prediction of disease relapsing.Methods Patients with SCLC who receiving the ifrst line chemotherapy in Cancer Hospital, Chinese Academy of Medical Sciences were enrolled and retrospectively analyzed. Clinical characteristic (includes NSE, ProGRP and LDH level before and atfer 2 cycles chemotherapy), effcacy evaluation, progression-free survival (PFS) were analyzed.Results Before treatment, Serum NSE, ProGRP and LDH in patients with extensive disease (ED) were signiifcantly higher than those with limited disease (LD)(allP<0.005); NSE level increased obviously accompanied by increase of lymph nodes stage in LD group (P=0.010); Patients with weight reduction when diagnosis had higher NSE and LDH than those without loss of weight (P=0.032,P=0.014). Atfer 2 cycles chemotherapy, decrease of NSE and ProGRP in effective group was higher than which in stable and ineffective groups (P=0.015,P=0.002). hTe relapse risk was lower in patients who accepted>4 cycles chemotherapy and with obvious decrease of ProGRP than those who accepted ≤4 cycles chemotherapy and with less obvious decrease of ProGRP in LD group; ED patients with no more than 2 distant metastasis, normal LDH level before treat-ment and obvious decrease of ProGRP atfer chemotherapy had lower short term relapse risk. In addition, the types of relapse (sensitive relapse, drug resistance relapse and refractory relapse) were negatively correlated with decrease of ProGRP (P=0.044). By multivariate analysis, numbers of chemotherapy cycle was independent prognostic factor for PFS in LD SCLC; numbers of distant metastasis and decrease of ProGRP were independent prognostic factors for PFS in ED SCLC.Conclusion Increase level of serum tumor markers is related to tumor burden. Decrease level of ProGRP atfer treatment may prognose effcacy and relapse risk.