Objective To study the biofilm formation ability and related gene distribution of Staphylococcus (S .) aureus iso‐lated from urinary tract infections to provide the theoretical basis for the prevention and treatment of clinical infection .Methods The minimal inhibitory concentration was detected using the agar double dilution method .The bacterial adhesion ability was deter‐mined by flat colony counting method .The biofilm formation ability was analyzed by the 96‐well crystal violet staining method .The biofilm‐associated genes were detected by PCR amplification .Results Eleven clinical strains of S .aureus were high resistant to pen‐icillin and erythromycin ,whereas were all sensitive to vancomycin and nitrofurantoin .All the isolates had a strong ability of adhe‐sion ,but the biofilm formation ability was weak .Among them ,the icaAD and icaBC genes were amplified in 10 S .aureus isolates . Conclusion The adhesion ability and biofilm formation ability of S .aureus isolated from urinary tract infections have the strain differences ,and ica is an important gene of S .aureus biofilm formation .

Objective To study the protective action of Semen Ziziphi Spiosaeand on acute myocardial ischemia and its effecte on infarcted area. Methods Left anterior descending(LAD) of coronary artery was ligated to cause the big rat's acute myocardial ischemia, and electrocardiogram (ECG) was used to appraise the effect of sour jujube kernel total soap on the myocardial infarcted area. Results Compared with control group, the experimental group treated with sour jujube kernel total soap glucosidal showed significantly smaller infarcted area; and ECG showed the heart rhythm, S-T piece and T wave value were significantly decreased in the experimental group. Conclusion Sour jujube kernel total soap glucosidal can reduce the myocardial infarcted area caused by ligature of LAD, so as to protect the cardiac muscle.

Background The filtration surgery is the main method of treating glaucoma,which usually fails due to postoperative scarring.The study about application of anti-scarring agents in filtration surgery is a hotspot.Objective This study was to investigate whether topical administration of hydroxycamptothecin (HCPT) could be used to prevent postoperative scarring in after experimental glaucoma filtration surgery,and explore its optimal dose.Metbods Trabeculectomy was performed on the right eyes of 40 New Zealand white rabbits to establish the trabeculectomy animal models.The rabbits were then randomized into normal saline solution group,0.3 g/L mitomycin C(MMC) group,0.3 g/L HCPT group and 1.0 g/L HCPT group based on the intraoperative topical drugs using randomized number table method.The different drugs above-mentioned were put beneath the conjunctival flap and scleral flap for 5 minutes during the surgery.The intraocular pressure (IOP) was measured before and day 1,4,7,14,21 and 28 after the surgery with Icare tonometer,and the filtering area and height were measured under the slit lamp microscope to assess the efficacy of various drugs.The adverse effects were evaluated by examining the responses of the ocular anterior segment and retinal change.The specimens at operative zone were obtained in 7,14 and 28 days after surgery with the size 5 mm×5 mm for the hematoxylin-eosin staining and Masson trichrome staining to estimate the anti-fibrosis effect of various drugs,and to evaluate the survival time of functional bleb.Kaplan-Meier analysis was used to compare the survival time of functional bleb of different groups.The use and care of the animals complied with the Regulation for the Administration of Affair Concerning Experimental Animals by State Science and Technology Committee.Results The IOP was significantly different in the rabbits from different groups among various time points (Fgroup =20.79,P =0.00 ; Ftime =85.34,P =0.00 ; Fiion =2.13,P =0.01).From 1 day through 28 days after operation,the IOPs in MMC group and 1.0 g/L HCPT group were significantly lower than those before operation (all at P＜0.05).The survival time of functional bleb of different groups was (11.3 ±2.8),(19.5 ±2.4),(13.3 ±2.2) and (20.2 ± 4.5) days,respectively,showing a significant difference (log rank =11.92,P ＜ 0.01),with a considerable prolong in the 1.0 g/L HCPT group.No significant change was found in the bleb area and height among the four groups within 7 days after operation,but postoperative 7,14,28 days,the area and height values of bleb were significantly smaller in the normal saline solution group and 0.3 g/L HCPT group compared with the MMC group and 1.0 g/L HCPT group (all at P ＜ 0.05).Histopathological examination showed loosen subconjunctival tissue,less inflammatory cells and weaker collagenous fibrillary staining in the MMC group and 1.0 g/L HCPT group in comparison with the normal saline solution group and 0.3 g/L HCPT group.Conclusions The topical administration of 1.0 g/L HCPT inhibit the inflammatory response and collagen fibrosis and therefore prolong the survival time of functional bleb after glaucomatous filtering surgery.

Objective: To observe the impact of mind-regulating acupuncture plus donepezil on the cognitive ability, mean cerebral blood flow velocity, event-related potential P300, and activities of daily living (ADL) in the aged patients with Alzheimer disease (AD).Methods: Sixty senile AD patients were divided into a treatment group and a control group following the envelope method for random allocation, with 30 cases in each group. Based on the conventional treatment of the internal medicine, the control group received oral donepezil, and the treatment group received oral donepezil plus mind-regulating acupuncture. After 4-week treatment, the two groups were evaluated by the mini-mental state examination (MMSE), Alzheimer disease assessment scale-cognitive part (ADAS-Cog), and ADL; changes in P300 and the mean cerebral blood flow velocity were also observed.Results: Before treatment, there were no significant differences in the scores of MMSE, ADAS-Cog, or ADL between the two groups (P>0.05). The MMSE score increased after treatment in both groups and was notably higher in the treatment group than in the control group, showing intra-group and inter-group statistical significance (P<0.05). After treatment, the ADAS-Cog and ADL scores dropped in both groups and were markedly lower in the treatment group than in the control group, also showing intra-group and inter-group statistical significance (P<0.05). Compared with the same group before treatment, the latency of P300 was shortened and the amplitude was extended in both groups, all with statistical significance (P<0.05); the latency was shorter and the amplitude was larger in the treatment group than in the control group after treatment, presenting significant between-group differences (P<0.05). The mean blood flow velocity accelerated after the intervention in both groups, and the differences were statistically significant (P<0.05); the improvement in the treatment group was more notable than that in the control group (P<0.05).Conclusion: Mind-regulating acupuncture plus donepezil can regulate the latency and amplitude of P300, increase cerebral blood flow, and improve the learning and memory abilities of AD patients.

Objective To evaluate the mental health of medical workers, and develop an EAP suitable for heahhcare sector. Methods A 1-year EAP was implemented in a hospital in Beijing, in which SF-36 and JSS scales were used to study the health-related quality of life and job satisfaction of these workers. Results Work pressure is found to be the main source of pressure for medical workers, accounting for 63.7%. Scores of the group receiving EAP service are found to be significantly higher (P<0.01) in all dimensions (excepting work nature and supervisor dimension) of both SF-36 and JSS. Conclusions Medical workers are exposed to high pressure of work, having strong need for EAP service as result. EAP is an effective means to maintain mental health and improve quality of life and job performance, if applied widely.

A miniaturized potentiometric label-free immunosensor based on the standard complementary metal-oxide-semiconduction transistor(CMOS) process and micro fabrication technique was developed to monitoring diabetes, which could detect the concentrations of glycated hemoglobin (HbA1c) and hemoglobin. This immunosensor includes a micro field-effect transistor based sensor chip integrated with signal readout circuit and a disposable probe electrode. The micro sensor chip was designed by our lab and fabricated by Chartered Semiconductor, Singapore. The disposable probe electrode, which was integrated with sensitive electrodes array and micro reaction pool, was deposited on polyester plastic based on micro fabrication techniques. Antibody of HbA1c and hemoglobin were immobilized on the electrode based on self assemble monolayer and gold nanoparticles. The characteristics of the electrode during modification were studied by cyclic voltammetry and electrochemical impedance technique. The response characteristic of the immunosensor was detected. HbA1c from 4 to 24 mg/L and hemoglobin from 60 to 180 mg/L can be detected by this immunosensor.

Adenolymphoma ; enzymology ; metabolism ; Humans ; Lymphoma, T-Cell ; enzymology ; metabolism ; Lymphoma, T-Cell, Peripheral ; enzymology ; metabolism ; Male ; Middle Aged ; Nitric Oxide Synthase Type I ; metabolism ; Up-Regulation

Abstract: Objective　To explore the value of real-time shear wave elastography in evaluating the severity of liver fibrosis in hepatitis B, and to analyze the factors that affecting its accuracy. Methods　A total of 196 chronic hepatitis B patients, who admitted to the Third Affiliated Hospital of Chengdu Medical College from February 2018 to October 2020, were selected for retrospective analysis. Demographic indicators such as gender, age, body mass index(BMI), and laboratory indicators such as fasting blood glucose, liver function, and blood lipid composition were collected. The patients were detected by real-time shear wave elastography. Taking the pathological test results as the gold standard, the diagnostic value of real-time shear wave elastography in the severity of liver fibrosis in chronic hepatitis B was analyzed, and the comprehensive effect of various factors on the diagnostic accuracy of real-time shear wave elastography was evaluated by Logistic regression analysis. Results　The differences in real-time shear wave elastography of patients with different severity of liver fibrosis in hepatitis B were statistically significant, and F0 grade

ObjectiveTo investigate the influence of fluid balance and model of renal replacement therapy (RRT) on renal function and prognosis of patients suffering from septic acute kidney injury (AKI).Methods A retrospective cohort analysis of 117 septic AKI patients who had undergone RRT between January 2009 and December 2014 was performed in the Second Affiliated Hospital of Nanjing Medical University. The patients were divided into positive fluid balance group (n = 52) and negative fluid balance group (n = 65) according to the total amount of fluid calculated from the difference between fluid administered and fluid lost during the first 1 week of RRT. The incidence of renal recovery and death of the patients by 60 days as the endpoint events were taken to judge the prognosis of two groups. RRT strategies included continuous renal replacement therapy (CRRT) and intermittent renal replacement therapy (IRRT). Multiple factors including estimated glomerular filtration rate (eGFR), sequential organ failure assessment (SOFA) score, RRT model, the accumulation of fluid before initiation of RRT, and negative fluid balance during RRT were analyzed for outcome predictors by Cox proportional hazards model.Results There were no differences between two groups regarding clinical characteristics. The percentage of receiving CRRT in the negative fluid balance group was slightly higher than that of the positive fluid balance group (52.31% vs. 36.54%,χ2 = 2.899,P = 0.089). With Kaplan-Meier survival curves, it was shown that the patients of negative fluid balance group had a higher rate of recovery of renal function (χ2 = 4.803,P = 0.028) and significantly lower mortality rate (χ2 = 9.505, P = 0.002). The rate of recovery of renal function by 60 days was higher in the negative fluid balance group than that in the positive fluid balance group (47.69% vs. 28.85%,χ2 = 3.991,P = 0.046), while the mortality rate was significantly lowered in the negative fluid balance group compared with that of the positive fluid balance group (40.00% vs. 67.31%,χ2 = 4.378,P = 0.036). Cox multivariate regression was used for excluding confounding factors. After adjusting for the clinically relevant variables, RRT negative fluid balance was significantly associated with recovery of renal function [hazard ratios (HR) = 2.440, 95% confidence intervals (95%CI) = 1.089-5.464,P = 0.030] and mortality (HR = 0.443, 95%CI = 0.238-0.822,P = 0.010]. Higher eGFR before RRT and CRRT were independent favorable factors for recovery of renal function (HR= 1.014, 95%CI = 1.003-1.026,P = 0.012;HR = 3.138, 95%CI = 1.765-7.461,P = 0.002), and higher SOFA score was associated with a significantly higher risk of death (HR = 1.115, 95%CI = 1.057-1.177, P< 0.001).ConclusionsOnce the patients with septic AKI showed the signs of fluid overload, timely RRT and effective removal of excessive liquid may reverse the adverse prognosis. RRT with negative fluid balance is beneficial for the recovery of renal function, and reduce the mortality in patients with septic AKI, and CRRT model is a good choice.