Objective To detect the expression levels of interleukin (IL)-25 and IL-33 in peripheral blood of patients with chronic urticaria.Methods Ninety-three patients with chronic urticaria were included in this study along with 30 healthy individuals.All the patients were treated with loratadine for four weeks.Blood samples were collected from the healthy controls and patients before and after the four-week treatment.Enzyme-linked immunosorbent assay (ELISA) was performed to detect the serum levels of IL-25 and IL-33.The relationship between the expression levels of the two cytokines and urticaria severity was analyzed.Results The serum levels of IL-25 and IL-33 in the patients before treatment were significantly higher than those in the healthy controls (IL-25,139.86 ± 28.48 vs.114.41 ± 34.00 ng/L,P ＜ 0.01; IL-33,91.95 ± 21.88 vs.79.80 ± 30.72 ng/L,P ＜ 0.05),and positively correlated with the severity of urticaria (r =0.38,0.42,respectively,both P ＜ 0.01).After four weeks of treatment,clinical improvement was observed in 81.72％ of these patients with a significant decrease in the serum IL-25 level (116.48 ± 21.94 vs.139.86 ± 28.48 ng/L,P ＜ 0.01),but no obvious changes in the serum IL-33 level (90.88 ± 20.62 vs.91.95 ± 21.88 ng/L,P ＞ 0.05) compared with those before treatment.Conclusions The expressions of IL-25 and IL-33 are elevated in peripheral blood of patients with chronic urticaria,and positively correlated with the severity of urticaria.

Objective To investigate the incidences, risk factors, genotypes and epidemiology of community-acquired blood stream infection caused by extended spectrum β-lactamases (ESBLs)-producing Escherichia coli and Klebsiella pneumonia strains and to analyze the sensitivity of those ESBLs producing strains to commonly used antibiotics. Methods Forty-two patients who were diagnosed with community-ac-quired blood stream infection caused by Escherichia coli or Klebsiella pneumonia strains in Sichuan Provincial People′s Hospital were recruited in this study. Disc diffusion method was used for the phenotypic confirmato-ry test of ESBLs. Agar dilution method was performed to measure the antimicrobial susceptibility of the ESBLs-producing strains to 13 clinically commonly used antibiotics. Genotypes of the ESBLs-producing strains were identified by polymerase chain reaction (PCR). Multilocus sequence typing (MLST) was used to analyze the epidemiology of ESBLs-producing strains. Logistic regression analysis was performed to analyze the risk factors for community-acquired blood stream infection. Results The ESBLs-producing Escherichia coli strains accounted for 56. 3% (18 / 32) and the ESBLs-producing Klebsiella pneumoniae strains accounted for 20% (2 / 10). All of the 20 ESBLs-producing strains were sensitive to imipenem, meropenem, ertapen-em, nitrofurantoin and moxalactam. The ESBLs-producing strains sensitive to amikacin, piperacillin-tazobactam and fosfomycin accounted for 95% , 90% and 85% , respectively. Drug resistance rates of the 20 strains to cefotaxime, levofloxacin, ciprofloxacin and cefepime were relatively high accounting for 100% , 80% , 80% and 75% , respectively. Among the 20 ESBLs-producing strains, 7 strains only carried the CTM gene, while the other 13 strains were all positive for two genotypes of ESBLs, mainly identified as TEM+CTM-M-14 and TEM+CTM-15 genotypes. The 18 Escherichia coli strains were classified into 10 ST types, most of which were ST131 type, followed by ST10 and ST38 types. This study indicated that malignant tumor might be a possible risk factor. Conclusion The prevalence of community-acquired blood stream infection caused by ESBLs-producing Escherichia coli strains was becoming increasingly serious. Malignant tumor might be the risk factor associated with the producing of ESBLs in Escherichia coli and Klebsiella pneumonia strains. TEM+CTX-M-14 was the predominant genotype of ESBLs-producing strains and the prevalent clone was ST131 type. Carbapenems and enzyme inhibitor compounds were ideal drugs for the treatment of commu-nity-acquired blood stream infection caused by ESBLs-producing Escherichia coli and Klebsiella pneumonia strains. This study was limited by the small sample size. Therefore, it is necessary to conduct further resear-ches based on a large number of samples.

Objective To evaluate the influencing factors and early recovery quality in elderly patients with gastrointestinal tumor resection by the quality of recovery-40 questionnaire (QoR-40 questionnaire). Methods One hundred and forty- two elderly patients who had underwent gastrointestinal tumor resection from February to June 2017 were selected. The patients were over 65 years old. Their body mass index was (22.98 ± 3.20) kg/m2, and American Society of Anesthesilogists (ASA) wasⅡorⅢgrade. The patients were assessed with QoR-40 questionnaire on the first and second day after operation, and the factors affecting the total score of QoR-40 questionnaire on the first and second day after operation were analyzed. Results Compared with those on the first day after operation, the scores of emotional status, physical comfort, psychological support, physical independence, pain and total score of QoR-40 questionnaire on the second day after operation were significantly higher: 42 (39, 43) scores vs. 40 (38, 42) scores, 53 (52, 54) scores vs. 52 (50, 53) scores, 35 (35, 35) scores vs. 35 (34, 35) scores, 15 (13, 15) scores vs. 14 (12, 15) scores, 34 (33, 35) scores vs. 33 (32, 34) scores and 178 (173, 182) scores vs. 174 (169, 177) scores, and there were statistical differences (P<0.01). On the first day after operation, the total score of the QoR-40 questionnaire was related with the type of operation (P<0.05), and it was not related with age, sex and anesthesia (P>0.05);on the second day after operation, the total score of QoR-40 questionnaire was related with age and operation type (P<0.05), and it was not related with sex and anesthesia (P > 0.05). Conclusions The early postoperative period score of QoR-40 questionnaire in patients with colorectal tumor resection and age less than 70 years old is higher, and the recovery quality after operation is relatively good, suggesting that the operation type and age may be an important factor affecting the early recovery quality of the elderly patients with gastrointestinal tumor resection.

BACKGROUND:Rotator cuff muscle degeneration(muscle atrophy,fibrosis and fatty infiltration)is a common condition after rotator cuff tears,which seriously affects shoulder function and surgical outcomes.Ginsenoside Rg1 has biological effects such as anti-oxidation,anti-apoptosis and lipid-lowering.However,the effect of ginsenoside Rg1 on muscle degeneration after rotator cuff tear has not been reported. OBJECTIVE:To investigate the effect of ginsenoside Rg1 on muscle degeneration after massive rotator cuff tear in mice. METHODS:Sixty C57BL/6J mice were randomly divided into sham group,model group,ginsenoside Rg1 low dose group and ginsenoside Rg1 high dose group,with 15 mice in each group.The skin of the right shoulder of mice in the sham group was cut and sutured.Massive rotator cuff tear mouse models of the right shoulder were established in the other three groups.Supraspinatus tendon and suprascapular nerve compression were administrated.Mice in the sham and model groups were intraperitoneally injected with 0.5 mL of saline after operation,while those in the ginsenoside Rg1 low and high dose groups were intraperitoneally injected with ginsenoside Rg1 30 and 60 mg/kg respectively,once a day,for 6 weeks.Mice were assessed for limb function by gait analysis the day after the last injection.After euthanasia,the supraspinatus muscle on the operated side was taken to measure the muscle atrophy rate and muscle contractility.Muscle tissue was stained with oil red O and Masson.RT-PCR was used to detect the expression of atrophy,fibrosis,and fatty infiltration related genes. RESULTS AND CONCLUSION:Compared with the model group,low-and high-dose ginsenoside Rg1 significantly increased paw print area and step length(P<0.05).Compared with the model group,low-and high-dose ginsenoside Rg1 significantly increased myofiber cross-sectional area and supraspinatus contractility(P<0.05),and significantly decreased wet muscle mass reduction ratio,fatty infiltration area ratio,and collagen fiber area ratio(P<0.05).Compared with the model group,low-and high-dose ginsenoside Rg1 significantly decreased the expression of atrophy,fibrosis,and fatty infiltration related genes(P<0.05).There was no significant difference in paw print area,supraspinatus muscle contractility,and myofiber cross-sectional area between ginsenoside Rg1 low and high dose groups(P>0.05),and all other indexes were better in the ginsenoside Rg1 high dose group than in the ginsenoside Rg1 low dose group(P<0.05).To conclude,ginsenoside Rg1 could significantly reduce muscle atrophy,fibrosis and fatty infiltration following massive rotator cuff tear in mice,which is beneficial to improve muscle strength and limb function.

Sphingomyelinases (SMase) are the main enzymes that regulate the signaling pathway of sphingomyelin and the metabolism of related products, and they are involved in the key steps of the complex metabolic process of sphingomyelin. In recent years, many studies have shown that SMase is involved in the biological processes such as cell cycle arrest, cell migration, and inflammation and promotes the development and progression of hepatocellular carcinoma by regulating the apoptosis and proliferation of tumor stem cells. SMase has an important potential biological value in the development, progression, diagnosis, and treatment of hepatocellular carcinoma. This article summarizes the exact role of SMase in the development and progression of hepatocellular carcinoma, in order to provide new ideas and strategies for the clinical treatment of hepatocellular carcinoma and the development of new drugs.