Objective To explore the mechanism of somatostatin in improving acute lung injury associated with acute pancreatitis.Methods Wistar rats were randomly divided into sham operation group(injection of normal saline),model group(puncture of common bile duct and injection of 5％sodium taurocholate with wire ligation),somatostatin group(injection of somatostatin into tail vein of model group),somatostatin+miR-146a-5p inhibitor group(on the basis of somatostatin group,tail vein injection of miR-146a-5p inhibitor and somatostatin+oe-angiogenin-like protein 4(ANGPTL4)group(on the basis of somatostatin group,tail vein injection of oe-ANGPTL4 plasmid).Hematoxylin-eosin(HE)staining was used to observe the pathological changes of pancreatic and lung tissues;pathological score and tissue wet-dry weight ratio were determined,real-time fluorescence quantitative polymerase chain reaction(qRT-PCR)was used to detect miR-146a-5p and ANGPTL4 mRNA expression and Western blot was used to detect the expression of related proteins in lung tissues of rats.Tumor necrosis factor-α(TNF-α)was detected by enzyme-linked immunosorbent assay(ELISA).Results In sham operation group,model group and somatostatin group,the damage degree of pancreas tissue(based on modified computed tomography severity index)were 1.25±0.28,3.20±0.34,2.15±0.31,respectively;the damage degree of lung tissue(based on the Smith lung injury score system)were 1.40±0.13,5.10±0.58,3.10±0.38,respectively.The relative expression levels of ANGPTL4 mRNA in sham operation group,model group,somatostatin group and somatostatin+miR-146a-5p inhibitor group were 1.00±0.17,1.63±0.20,1.21±0.18 and 1.73±0.28.The levels of TNF-α in sham operation group,model group,somatostatin group,somatostatin+miR-146a-5p inhibitor group and somatostatin+oe-ANGPTL4 group were(76.33±7.25),(125.05±13.56),(80.11±10.68),(118.62±14.32)and(105.32±13.52)pg·mL-1,respectively;the relative expression levels of nuclear factor E2-related factor 2(Nrf2)protein were 1.00±0.27,0.51±0.07,0.88±0.14,0.68±0.12,0.51±0.09,respectively;the relative expression levels of heme oxygenase-1(HO-1)protein were 1.00±0.25,0.58±0.11,0.79±0.18,0.48±0.07 and 0.50±0.08,respectively.The above indexes of the model group were compared with those of the sham operation group,and the above indexes of the somatostatin group were compared with those of the model group,somatostatin+miR-146a-5p inhibitor group and somatostatin+oe-ANGPTL4 group,and the differences were statistically significant(all P＜0.05).Conclusion Somatostatin has antioxidant and anti-inflammatory effects and can ameliorate acute lung injury associated with acute pancreatitis.The mechanism may be related to Nrf2/HO-1 pathway mediated by miR-146a-5p/ANGPTL4.

Objective China is among the 30 countries with a high burden of tuberculosis(TB)worldwide,and TB remains a public health concern.Kashgar Prefecture in the southern Xinjiang Autonomous Region is considered as one of the highest TB burden regions in China.However,molecular epidemiological studies of Kashgar are lacking. Methods A population-based retrospective study was conducted using whole-genome sequencing(WGS)to determine the characteristics of drug resistance and the transmission patterns. Results A total of 1,668 isolates collected in 2020 were classified into lineages 2(46.0%),3(27.5%),and 4(26.5%).The drug resistance rates revealed by WGS showed that the top three drugs in terms of the resistance rate were isoniazid(7.4%,124/1,668),streptomycin(6.0%,100/1,668),and rifampicin(3.3%,55/1,668).The rate of rifampicin resistance was 1.8%(23/1,290)in the new cases and 9.4%(32/340)in the previously treated cases.Known resistance mutations were detected more frequently in lineage 2 strains than in lineage 3 or 4 strains,respectively:18.6%vs.8.7 or 9%,P<0.001.The estimated proportion of recent transmissions was 25.9%(432/1,668).Multivariate logistic analyses indicated that sex,age,occupation,lineage,and drug resistance were the risk factors for recent transmission.Despite the low rate of drug resistance,drug-resistant strains had a higher risk of recent transmission than the susceptible strains(adjusted odds ratio,1.414;95%CI,1.023-1.954;P = 0.036).Among all patients with drug-resistant tuberculosis(DR-TB),78.4%(171/218)were attributed to the transmission of DR-TB strains. Conclusion Our results suggest that drug-resistant strains are more transmissible than susceptible strains and that transmission is the major driving force of the current DR-TB epidemic in Kashgar.

AIM:To explore the possible mechanism of Yiqi-Huoxue formula(YQHXF)in treating cerebral ischemia-reperfusion injury.METHODS:Male SD rats were randomly divided into six groups,namely,the sham,mod-el,nimodipine,and low-,middle-and high-dose YQHXF groups.The middle cerebral artery occlusion/reperfusion(MCAO/R)model was established in all groups except the sham group.After successful modeling,the YQHXF low-,me-dium-,and high-dose groups were given 3.8,7.5,and 15 g?kg-1?d-1 of YQHXF,respectively,by gavage,while the ni-modipine group was given 12 mg?kg-1?d-1 of nimodipine tablets by gavage.The sham and model groups were given 10 mL?kg-1?d-1 of distilled water by gavage.After 14 days of drug intervention,the rats were euthanized and the neurological func-tion was evaluated.The infarct volume was assessed using 2,3,5-triphenyltetrazolium chloride(TTC)staining and brain histopathological changes were determined by hematoxylin-eosin(HE)staining.Transmission electron microscopy was used to investigate changes in autophagosomes,with immunofluorescence used to assess expression of microtubule-associ-ated protein 1 light chain 3(LC3)protein in the cerebral cortex,Western blot was used to measure protein levels of p-PI3K,PI3K,p-Akt,Akt,p-mTOR,mTOR,LC3B,p62,beclin-1,and Atg5,and RT-qPCR was used to determined LC3 and P62 mRNA expression.RESULTS:Compared with the sham group,the neural function scores of rats in the model group rats were significantly increased,and TTC staining revealed large areas of white cerebral infarction.There was severe pathological damage to the cerebral tissue in the ischemic cortical area,and large numbers of autophagosomes were seen inside the cells.Immunofluorescence staining showed significant numbers of LC3B-positive cells(P<0.01).Protein expression of beclin-1,Atg5,and LC3-Ⅱ/LC3-Ⅰ was significantly upregulated(P<0.01),while that of p62 was markedly downregulated(P<0.01).The expression of p-PI3K/PI3K,p-Akt/Akt,and p-mTOR/mTOR proteins was also significantly reduced(P<0.01).In addition,the mRNA expression of LC3 was significantly upregulated(P<0.01),with downregulation of P62 mRNA levels(P<0.01).Compared with the model group,both the YQHXF medium-and high-dose groups showed upregulated LC3-Ⅱ/LC3-Ⅰ values after 12 h of reperfusion(P<0.01),followed by downregulation of the ratios(P<0.05)after 3,7,and 14 days of reperfusion.Furthermore,after 14 days of reperfusion,compared with the model group,the middle-and high-dose YQHXF groups and the nimodipine group showed reduced neurological function scores(P<0.01),reduced cerebral infarction volumes(P<0.01),improvements in the pathological damage to cortical tis-sue,and reduced autophagosome formation to varying degrees.At the same time,the number of LC3B-positive cells was reduced(P<0.01).Protein expression of beclin-1,Atg5,and LC3-Ⅱ/LC3-Ⅰ was significantly downregulated,while that of p62 was upregulated(P<0.01).The mRNA expression of LC3 and p62 was consistent with the protein levels(P<0.01).In addition,the expression of p-PI3K/PI3K,p-Akt/Akt,and p-mTOR/mTOR proteins was upregulated(P<0.01).CONCLUSION:YQHXF can dynamically regulate autophagy in ischemic brain tissue,with inhibition of excess autophagy by activation of the PI3K/Akt/mTOR signaling pathway,thus reducing the infarct volume,alleviating brain dam-age,and promoting the recovery of neurological function.

Aim To investigate the effects of daidzeinDD on the proliferation and apoptosis of non-small cell lung cancer cells,with a focus on the possible role of the p53 signaling pathway in this regard. Methods CCK-8 method and flow cytometry were used to detect the effects of soy isoflavone crude extract and DD on the viability and apoptosis of HELF and H1299 cells. Gene microarray was used to detect the changes in gene expression after treatment of H1299 cells with DD. GSEA and differential analysis were used to screen the major pathways and key genes. RT-qPCR and Western blot were performed to verify the differences in mRNA and protein expression of key genesp53 and CASP9 in the major pathways. After p53 inhibitor Pifithrin-α inhibited the expression of p53,the effect of DD on p53 mRNA and protein expression levels was examined,and the proliferative effect on H1299 cells was observed. Results Soy isoflavone crude extract and DD promoted proliferation and inhibited apoptosis of normal lung cells and inhibited proliferation and promoted apoptosis of lung cancer cells. p53 signaling pathway was significantly enriched in the DD-treated groupNES=1.78,P=0.000,and the expressions of p53 and CASP9 genes were found to be significantly up-regulated in the treated group. Compared with the control group,mRNA expression of CASP9 and p53 significantly increased in both HELF and H1299 cells treated with DDP<0.05,and p53 protein expression also increased in HELF cellsP<0.05. After inhibition of p53 expression,DD significantly increased the mRNA expression of p53 in H1299 and HELF cellsP<0.05 and also markedly increased the expression of p53 protein in H1299 cellsP<0.05,and it was observed that DD inhibited the proliferation of lung cancer cells. Conclusions DD inhibits the proliferation and promotes the apoptosis of lung cancer H1299 cells,and the mechanism mainly involves the p53 signaling pathway.

Objective:To observe the expression of angiopoietin-like protein 4 (ANGPTL4) signaling pathway in adenine-induced chronic kidney disease (CKD) rat model, and to explore the role of this pathway in renal fibrosis.Methods:Thirty-six male Sprague-Dawley rats were randomly divided into control group (saline, intragastric administration, n=15) and CKD group (250 mg·kg -1·d -1 2.5% adenine, intragastric administration, n=21). At the end of the 1st, 2nd and 4th week, 5 rats were randomly selected from each group. Renal function and 24-hour urinary protein quantity were measured. HE and Masson staining were used to observe the pathological changes of kidneys. Immunohistochemistry and real-time PCR were used to detect renal protein and mRNA expressions of hypoxia-inducible factor-1α (HIF-1α), ANGPTL4, bone morphogenetic protein 7 (BMP7), Smad1, α-smooth muscle actin (α-SMA) and type Ⅰ collagen (Col-Ⅰ). Pearson correlation analysis was used to analyze the correlation between the different indicators. Results:(1) Compared with the control group, the expression levels of serum creatinine and blood urea nitrogen in CKD group were higher at each time point, and the expression levels of 24-hour urinary protein quantity were higher at the end of the 2nd and 4th week (all P < 0.05). (2) HE and Masson staining showed that there were obvious renal structural disorders and collagen fiber deposition at each time point in CKD group compared with the control group, which got worse with time. (3) The results of immunohistochemistry and real-time PCR showed that compared with the control group, the protein and mRNA expression levels of ANGPTL4, α-SMA and Col-Ⅰ were higher, while the protein and mRNA expression levels of BMP7 and Smad1 were lower at the end of the 1st, 2nd and 4th week, and the protein and mRNA expression levels of HIF-1α were higher at the end of 2nd and 4th week in CKD group (all P < 0.05). (4) Correlation analysis results showed that HIF-1α and ANGPTL4 mRNA expression were positively correlated with α-SMA mRNA ( r=0.919, P < 0.001; r=0.757, P < 0.001), and also positively correlated with Col-Ⅰ mRNA ( r=0.925, P < 0.001; r=0.777, P < 0.001). HIF-1α mRNA expression was positively correlated with ANGPTL4 mRNA ( r=0.766, P < 0.001). There were significant negative correlations between HIF-1α, ANGPTL4 mRNA and BMP7 mRNA ( r=-0.652, P < 0.001; r=-0.741, P < 0.001). Conclusions:ANGPTL4 signaling pathway may be activated in adenine-induced CKD rat model, and involved in the renal fibrosis process of CKD.

Objective: To understand the current status of diagnosis and treatment of chronic lymphocytic leukemia (CLL) /small lymphocytic lymphoma (SLL) among hematologists, oncologists, and lymphoma physicians from hospitals of different levels in China. Methods: This multicenter questionnaire survey was conducted from March 2021 to July 2021 and included 1,000 eligible physicians. A combination of face-to-face interviews and online questionnaire surveys was used. A standardized questionnaire regarding the composition of patients treated for CLL/SLL, disease diagnosis and prognosis evaluation, concomitant diseases, organ function evaluation, treatment selection, and Bruton tyrosine kinase (BTK) inhibitor was used. Results: ①The interviewed physicians stated that the proportion of male patients treated for CLL/SLL is higher than that of females, and the age is mainly concentrated in 61-70 years old. ②Most of the interviewed physicians conducted tests, such as bone marrow biopsies and immunohistochemistry, for patient diagnosis, in addition to the blood test. ③Only 13.7% of the interviewed physicians fully grasped the initial treatment indications recommended by the existing guidelines. ④In terms of cognition of high-risk prognostic factors, physicians' knowledge of unmutated immunoglobulin heavy-chain variable and 11q- is far inferior to that of TP53 mutation and complex karyotype, which are two high-risk prognostic factors, and only 17.1% of the interviewed physicians fully mastered CLL International Prognostic Index scoring system. ⑤Among the first-line treatment strategy, BTK inhibitors are used for different types of patients, and physicians have formed a certain understanding that BTK inhibitors should be preferentially used in patients with high-risk factors and elderly patients, but the actual use of BTK inhibitors in different types of patients is not high (31.6%-46.0%). ⑥BTK inhibitors at a reduced dose in actual clinical treatment were used by 69.0% of the physicians, and 66.8% of the physicians had interrupted the BTK inhibitor for >12 days in actual clinical treatment. The use of BTK inhibitors is reduced or interrupted mainly because of adverse reactions, such as atrial fibrillation, severe bone marrow suppression, hemorrhage, and pulmonary infection, as well as patients' payment capacity and effective disease progression control. ⑦Some differences were found in the perceptions and behaviors of hematologists and oncologists regarding the prognostic assessment of CLL/SLL, the choice of treatment options, the clinical use of BTK inhibitors, etc. Conclusion: At present, a gap remains between the diagnosis and treatment of CLL/SLL among Chinese physicians compared with the recommendations in the guidelines regarding the diagnostic criteria, treatment indications, prognosis assessment, accompanying disease assessment, treatment strategy selection, and rational BTK inhibitor use, especially the proportion of dose reduction or BTK inhibitor discontinuation due to high adverse events.
Female ; Humans ; Male ; Aged ; Middle Aged ; Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy* ; Prognosis ; Lymphoma, B-Cell ; Immunohistochemistry ; Immunoglobulin Heavy Chains/therapeutic use*

Abstract: Objective　This study aims to explore the prevalence and risk factors of metabolic syndrome (MS) among the adults in Hainan Province, and to provide scientific basis for MS prevention and control. Methods　A multi-stage cluster random sampling method was applied to select 3 690 permanent residents aged 18 years and above in Hainan Province. The survey was conducted by trained investigators using household appointments and centralized surveys. A questionnaire survey, physical measurement, and laboratory examination were conducted after the collection of blood samples. The processed samples were then tested by a quality-controlled laboratory. Finally, we analysed the prevalence of metabolic syndrome (MS) and its relationship with population characteristics and health-related behaviors. Results　The crude prevalence of MS in the population aged 18 and above in Hainan province was 19.46% and the standardized prevalence was 13.21%, with a higher rate in urban areas (22.21%) than in rural areas (18.13%). The prevalence of MS increased with age (P<0.001), and there were significant differences in MS prevalence among different marital and occupational statuses (P<0.01). Logistic regression results indicated that the age groups of 40-<50 years (OR=2.986, 95%CI:1.355-6.580), 50-<60 years (OR=3.739, 95%CI: 1.715-8.151), 60-<70 years (OR=3.890, 95%CI: 1.769-8.556), 70 years and above (OR=3.927, 95%CI: 1.758-8.771), technical, transportation and production personnel (OR=1.579, 95%CI: 1.033-2.412), retired (OR=1.788, 95%CI: 1.415-2.259), unemployed (OR=1.503, 95%CI: 1.044-2.165), smoking cessation (OR=1.582, 95%CI: 1.162-2.154), insufficient intake of fruits and vegetables (OR=1.196, 95%CI: 1.005-1.422), and insufficient physical activity (OR=1.437, 95%CI: 1.155-1.787) were all associated with the prevalence of MS. Among the investigated subjects, 30.22% of them had one abnormal component, with hyperglycemia being the highest (54.44%); 24.25% of them had two abnormal components, with "hyperglycemia + hypertension" being the highest (33.30%); and 19.46% had three or more components, with "overweight/obesity + hyperglycemia + hypertension" being the highest (24.79%). Conclusions　The prevalence of MS in Hainan Province is on the rise, and effective lifestyle intervention measures are needed to reduce the risk of MS.

Objective: To investigate the clinical features and long-term prognosis of primary biliary cholangitis (PBC) in patients with past hepatitis B virus (HBV) infection. Methods: 353 cases with PBC who visited the Liver Disease Center of Beijing Friendship Hospital Affiliated to Capital Medical University between January 2000 and January 2018 were retrospectively analyzed and were divided into the past HBV infection group (156 cases) and the no HBV infection group (197 cases). The two groups' baseline clinical features were compared. Ursodeoxycholic acid response rate after one year, GLOBE score, UK-PBC score, and long-term liver transplantation-free survival rate were compared through outpatient and telephone follow-up. Results: PBC with past HBV infection had a significantly reduced female proportion compared to the no HBV infection group (91.9% vs. 79.5%, P = 0.001). However, there were no statistically significant differences in age, biochemical indices, immunological indicators, platelet count, cirrhosis proportion, and others. Ursodeoxycholic acid biochemical response rate was reduced in patients with past HBV infection at the end of one year of treatment, but the difference was not statistically significant (65.8% vs. 78.2%, P = 0.068). In addition, there were no statistically significant differences between the GLOBE score (0.57 vs. 0.59, P = 0.26) and UK-PBC 5-year (2.87% vs. 2.87%, P = 0.38), 10-year (9.29% vs. 8.2%, P = 0.39) and 15-year liver transplantation rates (16.6% vs. 14.73%, P = 0.39). Lastly, the overall 5-year liver transplantation-free survival rate had no statistically significant difference between the two groups of patients (86.4% vs. 87.5%, P = 0.796). Conclusion: Primary biliary cholangitis had no discernible effect in terms of age at onset, biochemical indices, immunological indicators, cirrhosis proportion, ursodeoxycholic acid response rate after one year, GLOBE score, UK-PBC score, or overall liver transplantation-free survival rate in patients with past hepatitis B virus infections.

Objective:To explore the effects of non-suicidal self-injury on suicidal ideation in adolescents with depressive disorder, and the mediating role of rumination and depression between them.Methods:A sample of 397 depressive disorder adolescents were recruited to complete the adolescent non-suicidal self-injury behaviour questionnaire, ruminative responses scale (RRS), self-rating depression scale (SDS), and Beck scale for suicide ideation-Chinese version(BSI-CV). All data processing and analysis were performed using SPSS 23.0.The mediating effect was tested by correlation analysis and Bootstrap analysis.Results:The non-suicidal self-injury score was (29.192±11.281), the rumination score was (65.036±12.284), the depression score was (75.770±11.278), and the suicidal ideation score was (40.681±11.626). Non-suicidal self-injury was significantly and positively correlated with suicidal ideation( r=0.403, P<0.01), rumination and depression( r=0.332, 0.470, both P<0.01). Rumination was significantly and positively correlated with depression and suicidal ideation( r=0.549, 0.181, both P<0.05). Depression was significantly and positively correlated with suicidal ideation( r=0.313, P<0.01). The direct effect value of non-suicidal self-injury on suicidal ideation was 0.341(95% CI=0.238-0.444), the indirect effect of non-suicidal self-injury on suicidal ideation through two pathways, the separate mediating effect value of depression was 0.057(95% CI=0.077-0.114), and the chain mediating effect value of rumination and depression was 0.026(95% CI=0.004-0.057). Conclusion:Non-suicidal self-injury can directly affect suicidal ideation of depressive disorder adolescents and indirectly through rumination and depression.

ObjectiveTo compare the effects of ganirelix1， ganirelix2 and cetrorelix for preventing premature luteinizing hormone （LH） surges and on clinical outcomes in gonadotropin-releasing hormone antagonist （GnRH-ant） cycles. MethodsWe retrospectively analyzed 1434 GnRH-ant cycles of in vitro fertilization/intracytoplasmic sperm injection （IVF/ICSI） at the Reproductive Medical Center of The Third Affiliated Hospital of Sun Yat-sen University from October， 2019 to December， 2020， including 461 cycles with ganirelix 1 treatment （Group 1）， 741 cycles with ganirelix 2 treatment （Group 2） and 232 cycles with cetrorelix treatment （Group 3） . The baseline characteristics of the patients and the clinical outcomes of the three groups were compared. ResultsThere were no significantly differences found in age，body mass index and anti-Müllerian hormone among the three groups. There were no significant differences in number of oocytes， proportion of LH >10 U/L on human chorionic gonadotrophin （hCG） trigger day， incidence of moderate/severe ovarian hyperstimulation syndrome （OHSS）， mature oocytes， clinical pregnancy rate and live birth rate following fresh embryo transfer among the three groups （P > 0.05）. The early pregnancy loss rate of ganirelix 1 group was significantly higher than that of ganirelix 2 group （P < 0.05）. ConclusionThere were similar incidence of premature LH surge in hCG day， moderate/severe OHSS， clinical pregnancy rate and live birth rate in GnRH-ant protocols among the three antagonists. The ganirelix 1 group may have a higher risk of adverse pregnancy outcome following fresh transfer since the high early pregnancy loss rate of it.