Objective:To investigate the effect of bronchoalveolar lavage fluid(BALF)cytology examination combined with lymphocyte immunoassay on clinical outcome of critically ill patients with stroke-associated pneumonia(SAP).Methods:One hundred and fifty-six critically ill patients with SAP admitted to Department of Respiratory and Critical Care Medicine of the Second People's Hospital of Weifang from September 2021 to June 2022 were selected,and randomly divided into a study group and a control group,with 78 cases in each group.Control group was treated with conventional pulmonary infection,and study group added bronchoscopic alveolar lavage treatment based on the treatment of control group,and the anti-infection treatment regimen was adjusted according to the results of BALF lymphocyte immunoassay.Clinical improvement rates,clinical symptom scores,serum inflammatory factors[procal-citonin(PCT),C-reactive protein(CRP),TNF-α],peripheral blood lymphocyte subsets(CD3+T,CD4+T,CD8+T)levels,treatment condition,in-hospital mortality and incidence of acute respiratory distress syndrome(ARDS)between the two groups were compared.Results:Clinical improvement rates were higher in study group(44.87%,58.97%,91.03%,97.44%)than that in control group(26.92%,42.31%,78.21%,88.46%)at 3 d,5 d,7 d and 10 d of treatment(P<0.05);serum PCT,CRP and TNF-α levels were lower in study group than that in control group after 10 d of treatment(P<0.05);peripheral blood CD3+T,CD4+T,CD8+T levels were higher in study group than that in control group after 10 d of treatment(P<0.05).CPIS and CURB-65 scores were lower in study group than that in control group after 10 d of treatment(P<0.05);duration of antimicrobial drug use,duration of mechanical ventilation,and length of hospital stay were shorter in study group than that in control group(P<0.05);in-hospital mortality rate(7.69%)and inci-dence of ARDS(5.13%)were lower in study group than that in control group(19.23%,15.38%)(P<0.05).Conclusion:Optimized anti-infection treatment plan based on BALF cytology examination combined with lymphocyte immunoassay can significantly improve clinical efficacy of critically ill patients with SAP,and help to promote recovery and improve the prognosis of patients.

Objective:To investigate the effect of bronchoalveolar lavage fluid(BALF)cytology examination combined with lymphocyte immunoassay on clinical outcome of critically ill patients with stroke-associated pneumonia(SAP).Methods:One hundred and fifty-six critically ill patients with SAP admitted to Department of Respiratory and Critical Care Medicine of the Second People's Hospital of Weifang from September 2021 to June 2022 were selected,and randomly divided into a study group and a control group,with 78 cases in each group.Control group was treated with conventional pulmonary infection,and study group added bronchoscopic alveolar lavage treatment based on the treatment of control group,and the anti-infection treatment regimen was adjusted according to the results of BALF lymphocyte immunoassay.Clinical improvement rates,clinical symptom scores,serum inflammatory factors[procal-citonin(PCT),C-reactive protein(CRP),TNF-α],peripheral blood lymphocyte subsets(CD3+T,CD4+T,CD8+T)levels,treatment condition,in-hospital mortality and incidence of acute respiratory distress syndrome(ARDS)between the two groups were compared.Results:Clinical improvement rates were higher in study group(44.87%,58.97%,91.03%,97.44%)than that in control group(26.92%,42.31%,78.21%,88.46%)at 3 d,5 d,7 d and 10 d of treatment(P<0.05);serum PCT,CRP and TNF-α levels were lower in study group than that in control group after 10 d of treatment(P<0.05);peripheral blood CD3+T,CD4+T,CD8+T levels were higher in study group than that in control group after 10 d of treatment(P<0.05).CPIS and CURB-65 scores were lower in study group than that in control group after 10 d of treatment(P<0.05);duration of antimicrobial drug use,duration of mechanical ventilation,and length of hospital stay were shorter in study group than that in control group(P<0.05);in-hospital mortality rate(7.69%)and inci-dence of ARDS(5.13%)were lower in study group than that in control group(19.23%,15.38%)(P<0.05).Conclusion:Optimized anti-infection treatment plan based on BALF cytology examination combined with lymphocyte immunoassay can significantly improve clinical efficacy of critically ill patients with SAP,and help to promote recovery and improve the prognosis of patients.

Loganin(LOG),a bioactive compound derived from Cornus officinalis Siebold & Zucc,has been understudied in the context of osteoarthritis(OA)treatment.In this study,we induced an inflammatory response in chondrocytes using lipopolysaccharide(LPS)and subsequently treated these cells with LOG.We employed fluorescence analysis to quantify reactive oxygen species(ROS)levels and measured the expression of NLRP3 and nuclear factor erythropoietin-2-related factor 2(NRF2)using real-time quantitative polymerase chain reaction(qRT-PCR),Western blotting,and immunofluorescence(IF)techniques.Additionally,we developed an OA mouse model by performing medial meniscus destabilization(DMM)surgery and monitored disease progression through micro-com-puted tomography(micro-CT),hematoxylin and eosin(H&E)staining,safranin O and fast green(S&F)staining,and immunohisto-chemical(IHC)analysis.Our results indicate that LOG significantly reduced LPS-induced ROS levels in chondrocytes,inhibited the activation of the NLRP3 inflammasome,and enhanced NRF2/heme oxygenase 1(HO-1)signaling.In vivo,LOG treatment mitigated cartilage degradation and osteophyte formation triggered by DMM surgery,decreased NLRP3 expression,and increased NRF2 expres-sion.These findings suggest that LOG has a protective effect against OA,potentially delaying disease progression by inhibiting the ROS-NLRP3-IL-1β axis and activating the NRF2/HO-1 pathway.

Background and purpose:As one of the most fatal malignant tumors in China, the morbidity and mortality of lung cancer remain high. Early diagnosis and normative treatment is the key to improve the prognosis of lung cancer. The aim of this study was to explore the practice of early lung cancer screening with low-dose spiral computed tomography (CT) based on the current situation in community health service, with integration of superior resources of med-ical institutions at all levels in Shanghai.Methods:From Aug. 2013 to Aug. 2014, we screened high-risk population in selected communities of Minhang District, Shanghai, for early diagnosis of lung cancer with low-dose spiral CT combined with multidisciplinary comprehensive treatment models including minimally invasive surgery, exploring the medical service network covering prevention, diagnosis, treatment, rehabilitation and follow-up.Results:Screening population is 11 332 (male 7 144, female 4 188); Twenty-nine cases with pathological diagnosis of malignant tumor, including 27 cases of pri-mary lung cancer, 1 case of lung metastasis, 1 case of breast cancer. The morbidity of primary lung cancer is 238.26×10-5. There were 22 cases of Stage 0-Ⅰ lung cancer accounting for 81.48% of all diagnosed primary lung cancer.Conclusion:Based on community health service, screening with low-dose spiral CT could improve the early diagnosis rate of lung can-cer with feasibility and validity, which could be applicable in qualified eligible medical center and community in China.

Objective To analyze the clinical effects of internal radiation of iodine-125 seed implantation in the treatment of advanced pancreatic carcinoma.Methods 22 patients with unresectable and advanced pancreatic carcinoma were treated by the internal and interstitial radiation using iodine-125 seed implantation.Results Survival of 20 months was observed in 5 patients,10 ～ 20 months in 9 patients,2 ～10 months in 8,patients with an average of (13.47 ± 8.12) months.Among the 22 patients,complete response was obtained in 5 patients,partial response in 8 patients,no response in 7 paticnts,and the other showing PD.The response rate( CR + PR) was 59％.Conclusions Intra - operative internal radiation by iodine - 125 seed implantation does show some therapeutic effects for advanced pancreatic carcinoma.

Objective To study the significance of CD24 protein expression in esophageal squamous cell carcinoma and its relationship with clinical pathological parameters and clinical prognosis.Methods The expression of CD24 protein was studied in 90 esophageal squamous cell carcinoma samples by EnVision immunohistochemical analysis and to study relationship of CD24 with clinical pathological parameters and prognosis.Results The expression of CD24 in esophageal squamous cell carcinoma was significantly higher than that in adjacent normal tissue (x 2 =0.832,P ＜ 0.05).The expression of CD24 was not related with the age of patien,sexuality and the histologic grade (x2 =0.741,0.361,0.930,8.858,all P ＞ 0.05),but with clinical stage of the cance (x2 =10.804,P =0.005),lymph node metastasis (x2 =12.349,P =0.000) and depth of tumor invasion (x2 =13.94,P =0.007).Significant difference in survival between the different CD24 expression group,the OR (95 ％ CI) values were 2.105 (61.022-69.273),2.313 (55.108-64.176),1.286 (32.388-37.429),the survival of patients with strong expression of CD24 was inferior to that of weak expression of CD24,depth of tumor invasion and lymph node metastasis were independent prognostic factors of esophageal squamous cell carcinoma.Conclusion CD24 may be related to the malignant process of esophageal squamous cell carcinoma.Overexpression of CD24 indicates poor prognosis in esophageal squamous cell carcinoma patients.CD24 may become a new independent prognostic factor for esophageal squamous cell carcinoma.

Objective The goal of the study was to assess the lethal effect of cytotoxic lymphocyte against A549 cells induced by dendritic cells (DC) pulsed with A549 lysate and transfected with GM-CSF recombinant adenovirus. Methods The cytotoxic lymphocyte against A549 cells were induced by culturing with DCs, which pulsed with A549 antigens and transfected with GM-CSF recombinant adenovirus. The of effector/target ratio, the killing rates of N-DC group, A-DC group and G-A-DC group were (1.9±0.7) %,effector/target ratio, the killing rates of N-DC group, A-DC group and G-A-DC group were (5.3±0.2) %, (40.5±7.7) % and (72.5±4.7) %, respectively. We found that the killing rate of G-A-DC group was the highest by statistics. Conclusion The cytotoxic lymphocyte against A549 cells can be induced by DCs pulsed with A549 lysate ,and the lethal effect of CTLs can be enhanced when DCs were infected with GM-CSF recombinant adenovirus.

To prepare the polyclonal antibody against the 3D polymerase of foot and mouth disease virus (FMDV), the 3D polymerase gene of this virus was amplified by PCR and doubly digested with BamH I and Nde I. Then, it were cloned into expression vector pET-30a(+) to obtain the recombinant plasmid pET-3D and this plasmid was transformed to E.coli BL21(DE3) with induction by IPTG.The target protein was identified and purified with SDS+PAGE, and the inclusion bodies were extracted. The purified target protein was used as antigen to immunize New Zealand rabbits to prepare the polyclonal antibody against 3D polymerase of FMDV, which was then characterized by indirect ELISA and Western blotting. As demonstrated by SDS-PAGE, the target protein with a molecular weight at 46 ku was expressed. The polyclonal antibody showed high affinity and obvious specificity and its titer was above 1:8 000. This polyclonal antibody may lay a foundation for the further studies on the biological functions and epitopes of the 3D polymerase of FMDV.

Objective To compare the clinical efficacy and safety of isotretinoin erythromycin gel, a gel containing isotretinoin (0.05%) and erythromycin (2%), versus adapalene gel in the treatment of mild to moderate acne vulgaris. Methods A multicenter, randomized, open, parallel-controlled clinical study was conducted. A total of 192 patients with mild to moderate (Grade Ⅰ -Ⅲ ) acne vulgaris were enrolled in this study according to the grading criteria for acne severity in guidelines for the treatment of acne in China. Efficacy analysis was carried out in 169 patients and safety analysis in 190 patients. The patients were classified into trial group (n = 86) and control group (n = 83 ) to be treated with isotretinoin erythromycin gel or adapalene gel once a night for 6 weeks. Patients were evaluated at the baseline, on week 2, 4 and 6 during the treatment for the count of comedones (both open and closed), inflammatory papules and pustules, severity of acne and local or general adverse effects. Results After the start of treatment, the response rate gradually increased and severity of acne decreased in both groups. On week 6, the total response rate was 51.16% in the trial group and 40.96% in the control group (P ＞ 0.05), while a greater reduction in the count of pustules and inflammatory lesions was observed on week 4 and 6 in the trial group with a lower severity grade of acne compared with the control group (P ＜ 0.05 or 0.01 ). Adverse reactions were similar in both groups and manifested as tolerable local irritation. Conclusions The efficacy of isotretinoin erythromycin gel is similar to that of adapalene gel in the treatment of mild to moderate acne vulgaris, however, isotretinoin erythromycin gel seems superior to adapalene gel in reducing inflammatory lesions and rapidly improving severity of acne vulgaris.