Peroxisome proliferator activated receptor-γ (PPARγ) is a member of the nuclear receptor superfamily of ligand-activated transcription factors that plays a critical role in regulating glucose and lipid homeostasis,and in the processes of tumor cell proliferation,differentiation,apoptosis,invasion and distant metastasis.Studies demonstrate that PPARγexpression is detected in human lung cancer tissues and numerous lung cancer cell lines.Activation of PPARγthrough its ligands impedes significantly a variety of tumor progression,including lung cancer.However,systemic activation of PPARγhas been reported to be protumorigenic in some in vitro systems and in vivo models.

mRNA in ARE and GW9662 group were 2.276 ±0.534 and 0.362 ±0.026,respectively.Compared with control group,PPARγmRNA level in both of ARE and GW9662 group reached statistical significance (t =4.785,P =0.001 ;t =2.395,P =0.044).PPARγprotein expression in ARE group,GW9662 +ARE group and control group were 27 688.33 ±3 593.06,21 816.00 ±1 644.07,17 716.33 ±2 273.95,respectively,which was higher in ARE group than that in control and GW+ARE group (t =5.159,P =0.001 ;t =3.038,P =0.016). NF-κB p65 mRNA expression in GW9662 +ARE group was 0.346 ±0.149,which in ARE group and GW9662 group were 0.392 ±0.1 87 and 1 .720 ±0.338,respec-tively.The differences of NF-κB p65 mRNA expression level between ARE,and control or GW9662 group were statistically significant (t =3.592,P =0.007;t =7.851 ,P =0.000).While,the differences of Caspase-3 mRNA and protein expression levels among the four groups were not statistically significant (F =1 .1 81 ,P =0.376;F =0.647,P >0.05).Conclusion ARE may restrain NF-κB through up-regulating PPARγto inhibit the proliferation and invasive potential of LLC in vitro, which suggests that PPAR-γmay be a novel therapeutic target for lung cancer.

Tumor radioresistance is the leading cause of clinical radiotherapy failure and disease progression.Researches show that the occurrence of radioresistance is related to the cell cycle arrest,relevant gene change,tumor microenvironment change,autophagy,tumor stem cells and other factors.Studying the mechanism of radioresistance and looking for an effective method to avoid it is the key to improve the effect of radiotherapy,which can provide the probability of the prognosis of radiosensitivity.

Objective To improve the recognition and management of primary breast lymphoma(PBL) by discussing the clinical pathological characteristics and the prognosis of PBL. Methods The clinical and treatment records of PBL pa-tients admitted in Boai hospital of zhongshan from January 2001 to December 2012 were analyzed. Results All cases were B-cell origin(25/25),61.5%(16/25)were diffuse large B-cell lymphoma origin,The 5-year overall survival was 44%. There were no significant difference in the 5-year overall survival rates, 5-year local control rates and 5-year distant control rates in patient treatment with any surgery compared with no-Surgery(P>0.05).There were no significant difference in the 5-year overall survival rates and 5-year distant control rates in patient treatment with any RT com-pared with no-RT(P>0.05),but the 5-year local control rates was significantly different(P<0.05);There were no sig-nificant difference in the 5-year overall survival rates and 5-year local control rates in patient treatment with any chemotherapy compared with no-chemotherapy (P>0.05). but the 5-year distant control rates was significant different(P<0.05). Conclusion The prognosis of PBL is related with the clinical stage and pathological type. Radiotherapy and chemotherapy respectively promote the local control and distant control. The optimal treatment is surgery combined with chemotherapy and/or radiotherapy.

A total of 159 patients with Streptococcus milleri (S. milleri) infection were diagnosed in our hospital between January 2014 and January 2019. The demographic data, underlying diseases, infection sites, laboratory tests, and prognosis of patients were retrospectively analyzed; the clinical and microbiological data were compared among different age groups. Of the 159 patients there were 103 were males and 56 females; there were 19 patients aged<18 years [(8.1±5.3) years], 113 patients aged ≥18 and < 65 years [(45.5±13.1) years] and 27 patients aged ≥65 years[(74.7±8.6) years]. The incidence peaked in the 34-55 year age group (50 cases, 31.4%). Streptococcus anginosus was identified in 97 cases (61.0%), Streptococcus constellatus in 55 patients (34.6%) and Streptococcus intermedius in 7 cases (4.4%). The abdomen (44 cases, 27.7%) and the chest (19 cases, 11.9%) were the main involving sites. For patients younger than 18 years and those aged ≥18 and<65 years, suppurative appendicitis was the most common condition[12 cases(12/19) and 21 cases(18.6%), respectively]; while in patients aged ≥65 years, chest infection ranked the first (9 cases, 33.3%). All 159 patients were treated with anti-infection therapy alone or anti-infection and invasive procedures with a favorable prognosis, 2 patients died with a overall fatality rate of 1.3%.

Objective:To explore the clinical characteristics, chest imaging manifestations, RAPID score and therapeutic situation in patients with parapneumonic pleural effusion (PPE) caused by streptococcus anginosus group (SAG), in order to provide help for the early diagnosis and treatment in clinical practices. Methods:The clinical data of 39 patients with PPE caused by SAG from January 2015 to May 2020 in Affiliated Hospital of Jining Medical University and Jining First People′s Hospital were retrospectively analyzed. The patients were classified by RAPID score.Results:Among 39 cases, males was in 31 cases (79.5%), females in 8 cases (20.5%), and aged 46 to 89 (65.31±10.53) years old. Fever was in 27 cases (69.2%), chest pain in 19 cases (48.7%), and dyspnea in 18 cases (46.2%). The chest CT findings showed consolidation shadows was in 30 cases (76.9%), encapsulated pleural effusion in 21 cases (53.8%), ground glass shadow in 18 cases (46.2%), nodules in 12 cases (30.8%), atelectasis in 8 cases (20.5%), and pneumothorax in 5 cases (12.8%). The complexity PPE was in 23 cases (59.0%), and empyema in 16 cases (41.0%). The microbiological culture results showed that streptococcus constellatus was detected in 25 cases (64.1%), streptococcus anginosus in 13 cases (33.3%), and streptococcus intermadius in 1 case (2.6%). After comprehensive treatment, 36 cases (92.3%) were improved, 3 cases (7.7%) died. According to the RAPID score, low-risk was in 13 cases (33.3%), intermediate-risk in 16 cases (41.0%), and high-risk in 10 cases (25.7%). The RAPID score in patients with low-risk, intermediate-risk and high-risk was (1.85 ± 0.38), (3.43 ± 0.51) and (5.30 ± 0.67) scores, and there was statistical difference ( F = 124.88, P<0.05). the length of stay in patients with low-risk, intermediate-risk and high-risk of RAPID score was (16.84 ± 5.57), (16.56 ± 7.05) and (28.20 ± 17.97) d, and there was statistical difference ( F = 4.41, P<0.05); the length of stay in patients with high-risk was significantly longer than that in patients with low-risk and intermediate-risk, and there was statistical difference ( P<0.05), there was no statistical difference between intermediate-risk patients and low-risk patients ( P>0.05). Conclusions:SAG, as important pathogens for the PPE, tends to induce CPPE and even pyopneumothorax. Clinical manifestations and imaging are not specific, which should be payed attention in clinical work. The patients with high-risk of RAPID score have more serious condition and worse prognosis.

UNLABELLEDBackround N-terminal pro-brain natriuretic peptide (NT-proBNP) is a reliable predictor in acute coronary artery disease (CAD). Little is known about patients with stable CAD, especially Chinese patients with CAD. The aim of the present study was to investigate the association of NT-proBNP levels with the severity of CAD in patients with normal left ventricular ejection fraction.

METHODSA total of 658 consecutive patients were divided into two groups based on angiograms: CAD group (n = 484) and angiographic normal control group (n = 174). The severity of CAD was evaluated by modified Gensini score, and its relationship with NT-proBNP was analyzed.

RESULTSThe prevalence of risk factors such as age, male gender, diabetes mellitus (DM), dyslipidemia, smoking, and family history of CAD in the CAD group were higher than that in the control group. In multivariate regression model analysis, age, gender, and DM were determinants of the presence of CAD. NT-pro BNP was found to be an independent predictor for CAD (OR:1.66 (95% CI: 1.06-2.61), P < 0.05). In a receiver operating characteristic (ROC) curve analysis, an NT-proBNP value of 641.15 pmol/L was identified as a cut-off value in the diagnosis or exclusion of CAD (area under curve (AUC) = 0.56, 95% CI: 0.51-0.61). Furthermore, NT-proBNP was positively correlated with Gensini score (r = 0.14, P < 0.001) in patients with CAD.

CONCLUSIONNT-proBNP was an independent predictor for Chinese patients with CAD, suggesting that the NT-proBNP level might be associated with the presence and the severity of CAD.

Coronary Disease ; blood ; physiopathology ; Female ; Humans ; Male ; Middle Aged ; Natriuretic Peptide, Brain ; blood ; Peptide Fragments ; blood ; Prospective Studies ; Risk Factors ; Severity of Illness Index ; Stroke Volume