A new method for the determination of peptide antibiotics in sediment from aquaculture environment by high performance liquid chromatography-tandem mass spectrometry was developed. The target analytes in sediments were ultrasonically extracted twice with citrate buffer solution and methol mixture (3∶ 4, V/ V), followed by complexation with 0. 5 g of Na2 EDTA, purification with 5 mL of methyl isobutyl ketone, and clean-up with HLB-SPE column. The analytes were separated on a MGII C18 column by gradient elution with 0. 1% formaic acid-0. 1% formaic acid acetonitrile as mobile phase, detected in multiple reaction monitoring (MRM) with electrospray ionization (ESI) under positive ion mode, and quantified by external standard method. The calibration curves were linear (R2 >0. 999) over a concentration range of 10 -10000μg / L for colistin and bacitracin and 4-4000 μg / L for virginiamycin M1 . The limits of detection (S / N = 3) were 5 μg / kg for colistin and bacitracin and 2 μg / kg for virginiamycin M1 . The limits of quantification (S / N=10) was 10 μg / kg for colistin and bacitracin and 4 μg / kg for virginiamycin M1 . At three spiked levels, the recoveries ranged from 79. 7% to 91. 6% (RSD=1. 9% -10. 8% ), showing high sensitivity, good reproducibility and wide applicability.

Objective To explore the gender difference in clinical features and outcomes of elderly patients with coronary true bifurcation lesions after percutaneous coronary intervention (PCI).Methods A total of 169 consecutive patients were included in the study, who were diagnosed coronary true bifurcation lesions by coronary angiography (CAG)and received PCI in our hospital from December 2013 to December 2015.All patients were divided into 2 groups according to their gender (71 femals and 98 males).Angiographic characteristics of the coronary lesions and clinical data were analyzed in both groups.Clinical outcomes during follow up were recorded and studied.Results The levels of total cholesterol (TC), triglyceride (TG),high density lipoprotein cholesterol (HDL-C) and low density lipoprotein cholesterol (LDL-C) in the female group were significantly higher than in the male group (all P<0.05).The levels of BUN,Cr,UA,CyC and TBIL in the female group were significantly lower than in the male group (all P<0.05).Comorbidity rates of hypertension and diabetes were higher in female patients without significant differences (P>0.05).The median follow-up time was 17 months and the incidence rate of overall adverse events in women was higher than that of men (25.4% vs.11.2%, P<0.05).Conclusions The clinical outcomes of elderly patients with coronary true bifurcation lesions after PCI had gender differences.The rates of adverse events in female patients was found significantly higher than male patients.

Objective To evaluate the effect of the LEMON method in predicting difficult air-way.Methods A total of 1 528 patients scheduled for elective surgery requiring tracheal intubation under general anaesthesia,680 males and 848 females,aged 18-83 years,ASA physical status Ⅰ orⅡ,were enrolled in the study.We used the LEMON method to assess airway conditions before an-aesthesia and recorded the scores.The primary end point was difficult tracheal intubation.The sec-ondary end point was difficult laryngoscopy.Receiver operating characteristic (ROC)curve analysis and the area under the curve (AUC)were used to evaluate the clinical effect of the LEMON mothod. Results There were 37 cases with difficult tracheal intubation and 106 cases with difficult laryngosco-py.The incidence of difficult tracheal intubation and difficult laryngoscopy were 2.4% and 6.9%,re-spectively.The area under the curve of the LEMON method for predicting difficult laryngoscopy and difficult tracheal intubation were 0.884 (95% CI 0.867-0.899)and 0.934 (95% CI 0.921-0.946), respectively.Conclusion The LEMON method has good clinical effect in predicting difficult airway.

Objective To study the impact of aspirin resistance(AR)on the recurrence of artery athero-sclerotic cerebral infarction,and analyze the risk factors of AR. Methods According to TOSAT classification, newly diagnosed cerebral infarction patients with artery atherosclerotic cerebral infarction were selected into groups,and aspirin enteric-coated tables(ASP)was used to prevent platelet aggregation.One week later,the inhi-bition rate of platelet was detected by thrombelastogram(TEG),and the patients were divided into aspirin sensi-tive(AS)group and AR group,and were followed-up for at least 6 months.According to whether they were recur-rent cerebral infarction,the patients were divided into recurrent group and non-recurrent group. Then,statistical analysis was conducted.Results The incidence rate of AR in recurrent group was significantly higher than that in non-recurrence group(P < 0.05);the recurrence rate of cerebral infarction in AR group was significantly higher than that in AS group(P<0.05).When compare the clinical indexes between the recurrence group and non-recur-rence group,age,diabetes,TC,Hcy,Apo-a in the two groups were different(P<0.05).In recurrent group,the distribution of diabetes,LDL-C and Hs-CRP were different between AR and AS group(P<0.05).Age,gender, hypertension,diabetes,Hs-CRP and TC were risk factors for AR.Conclusions AR plays an important role in the relapse of artery atherosclerotic cerebral infarction and it is more likely to occur especially accompanied by adverse factors such as underlying diseases. TEG can be used to detect AR rapidly and conveniently,which has practical significance in preventing recurrent cerebral infarction.

Objective To compare the renal toxicity of vancomycin with continuous infusion vs intermittent infusion. Methods The databases of EMBASE,PUBMED,the Cochrane Register of Controlled Trials,CBM,CNKI and WanFang were searched.The Cochrane Revman5.2 software was used for Meta-analysis.Results Two RCTs and eight observational studies were included in the systematic literature search with total of 1 764 patients.1 037 patients received vancomycin with continuous infusion while 727 patients with intermittent infusion.The Meta-analysis indicated that there was no significant difference in renal toxicity between continuous infusion group and intermittent infusion group(P>0.05).Conclusion Vanco-mycin continuous infusion cannot effectively reduce the incidence of renal toxicity.

Objective: To explore the availability and safety of fecal microbiota transplantation for patients with refractory diarrhea after allogeneic hematopoietic stem cell transplantation (allo-HSCT) . Methods: Four acute leukemia patients suffered from refractory diarrhea after allo-HSCT. One of them was refractory intestinal infection, the others were intestinal graft versus host disease. One or two doses of fecal microbiota, 3.4-6.0 U for one dose, were infused via nasal-jejunal tube. The curative effect and side effects were reviewed. Results: Three cases achieved complete remission while 1 was stable disease. The side effects included fever, abdominal pain and diarrhea, which all were Ⅰ grade. Conclusion Fecal microbiota transplantation was effective and safe for refractory diarrhea after allo-HSCT.

Objective: To analyze the efficacy and safety of asparaginase based chemotherapy bridging autologous hematopoietic stem cell transplantation (auto-HSCT) in the treatment of 16 patients with nasal type extranodal NK/T-cell lymphoma (ENKTL). Methods: From January 2012 to June 2017, 16 patients with nasal type extranodal NK/T-cell lymphoma reached complete remission by L-asparaginase based regimens, and then received auto-HSCT. Results: ①Of the 16 patients, 12 were males and 4 females, with a median age of 35.5 (14-61) years. There were 11 patients in the first complete remission (CR1) and 5 in the second CR (CR2) before transplantation, respectively. EB virus (EBV) DNA (EBV-DNA) was negative and positive in 13 and 3 cases respectively before transplantation. ②Hematopoietic reconstitution was achieved in all 16 cases. The median time for neutrophils implantation was 12 (8-17) days, and that of platelet implantation was 15.5 (12-24) days. ③To the last follow-up, there were no transplant related deaths, 3 patients died of disease progression. The median overall survival (OS) time and progression-free survival time (PFS) were not reached. Seven patients lived with no disease progression more than 2 years. ④The OS and PFS of patients at CR₁ before auto-HSCT are better than that of patients at CR₂, but there was no statistically significant difference (P=0.162, P=0.123). There was no significant difference in OS and PFS between EBV-DNA negative and positive patients before transplantation (P=0.280, P=0.244). Conclusions L-asparaginase based regimens bridging auto-HSCT is a safe and highly effective for advanced-stage and relapsed ENKTL treatment.

Objective:To explore the predictive value of lipoprotein-associated phospholipase A2 (Lp-PLA2) combined with systemic immune-inflammation index (SII) for coronary heart disease risk in patients with type 2 diabetes mellitus.Methods:A prospective study was performed, 130 patients with type 2 diabetes mellitus from May 2018 to May 2021 in the People′s Hospital of Pengzhou were selected. All patients underwent coronary angiography examination, and 49 cases were complicated with coronary heart disease (coronary heart disease group), 81 cases were not complicated with coronary heart disease (non-coronary heart disease group). The clinical data were recorded; the white blood cell, monocyte, platelet, neutrophils, lymphocyte, hemoglobin, total cholesterol (TC), triacylglycerol (TG), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), fasting blood glucose, C-reactive protein (CRP), glycated hemoglobin and Lp-PLA2 were detected; and the SII was calculated. Multivariate Logistic regression analysis was used to analyze the independent risk factors of coronary heart disease in patients with type 2 diabetes mellitus; the efficacy of Lp-PLA2 and SII in predicting the coronary heart disease in patients with type 2 diabetes mellitus was evaluated using the receiver operating characteristics (ROC) curve.Results:There were no statistical differences in white blood cell, hemoglobin, TC, TG, LDL-C, fasting blood glucose, glycated hemoglobin and CRP between two groups ( P>0.05); the monocyte, platelet, neutrophils, Lp-PLA2 and SII in coronary heart disease group were significantly higher than those in the non-coronary heart disease group: (0.55 ± 0.22) × 10 9/L vs. (0.40 ± 0.11) × 10 9/L, (227.84 ± 40.76) × 10 9/L vs. (205.81 ± 39.04) × 10 9/L, (6.78 ± 1.45) × 10 9/L vs. (6.30 ± 1.18) × 10 9/L, (240.67 ± 41.48) μg/L vs. (214.83 ± 36.35) μg/L and 1 245.76 ± 383.08 vs. 929.84 ± 260.27, the lymphocyte and HDL-C were significantly lower than those in the non-coronary heart disease group: (1.26 ± 0.17) × 10 9/L vs. (1.41 ± 0.19) × 10 9/L and (1.15 ± 0.14) mmol/L vs. (1.23 ± 0.21) mmol/L, and there were statistical differences ( P<0.01 or <0.05). Multivariate Logistic regression analysis result showed that monocyte, HDL-C, Lp-PLA2 and SII were the independent risk factors of coronary heart disease in patients with type 2 diabetes mellitus ( OR = 1.812, 1.013, 1.013 and 2.004; 95% CI 4.430 to 6.801, 0.992 to 1.013, 1.001 to 1.026 and 0.004 to 0.855; P<0.01 ore <0.05). ROC curve analysis result showed that the area under the curve of Lp-PLA2 combined with SII to predict the coronary heart disease in patients with type 2 diabetes mellitus was significantly larger than Lp-PLA2 and SII alone: 0.783 (95% CI 0.702 to 0.851) vs. 0.681 (95% CI 0.593 to 0.760) and 0.744 (95% CI 0.660 to 0.816), and there was statistical difference ( P<0.05). Conclusions:Lp-PLA2 and SII are independent risk factors for coronary heart disease in patients with type 2 diabetes mellitus, and their combined detection can improve the predictive value of coronary heart disease.

In December 2021, in order to effectively solve the economic burden and payment difficulties of the elderly or disabled elderly and tumor patients in the promotion of " Internet plus nursing services", Ningbo included three home medical care services, namely, peripherally inserted central maintenance, urinary catheter care and nasogastric tube care with large patient needs and high frequency, into medical insurance, and could be paid at home(hereinafter referred to as: " medical insurance home payment" ). The author introduced the relevant concepts and service processes of " medical insurance home payment", and summarized the effects, problems and further improvement measures. After the implementation of the policy, the number of three nursing services included in " medical insurance home payment" reached 7 953 in 2022, with an increase of 105.29% over the same period in 2021, no adverse events occurred, and patient satisfaction was high. Ningbo " medical insurance home payment" could reduce the economic burden of patients and provide a reference for the medical insurance payment and service charges of " Internet plus nursing services" in China.

Objective:To explore the effects of long non-coding RNA SATB2-AS1 in the proliferation and apoptosis of cervical cancer cells as an endogenous competitive RNA to regulate miR-373-5p/BTG3 axis.Methods:qRT-PCR was used to detect the expression of LncRNA SATB2-AS1, miR-373-5p and BTG3 in paracancerous tissue and cancerous tissue of patients with CC. The interaction between LncRNA SATB2/miR-373-5p/BTG3 was then predicted and verified. The expression of SATB2-AS1 and miR-373-5p in cells was intervened, subsequently the CC cells were divided into different groups. The proliferation activity of cells in each group was detected by MTT, and the apoptosis of cells in each group was detected by flow cytometry.Results:qRT-PCR showed that the expression of SATB2-AS1 and BTG3 in cancer tissue and CC cells was significantly decreased, while the expression of miR-373-5p was significantly increased in cancer tissue and CC cells compared with paracancerous tissue and normal cervical cells.The targeting relationship between SATB2-AS1 and miR-373-5p was confirmed. Compared with NC group, overexpression of SATB2-AS1 inhibited cell proliferation butinduced apoptosis. Overexpression of miR-373-5p promoted cell proliferation, inhibited apoptosis, but this effect was partially saved by SATB2-AS1.Conclusion:Up-regulation of LncRNA SATB2-AS1 expression regulated the miR-373-5p/BTG3 axis and participated in the progression of cervical cancer, subsequently inhibited cancer cell proliferation but induced apoptosis.