A fluorescence nanosensor based on an easily prepared fluorescent molecule, 1-oxo-1H-phenalene-2,3-dicarbonitrile (OPD), was developed for highly sensitive detection of glucose.Under the catalysis of horseradish peroxidase (HRP), 3,3′,5,5′-tetramethylbenzidine (TMB) was oxidized into oxidized TMB (oxTMB) by H2O2.And the fluorescence of OPD was quenched by the intense absorption of the formed oxTMB, thus realizing effective quantitative detection of H2O2.The linear range was 0.05-0.8 μmol/L and 1-10 μmol/L respectively, with limit of detection of 0.02 μmol/L.Besides, on the basis of transformation of glucose into H2O2 through the catalysis of glucose oxidase, this nanosensor could be further exploited for highly sensitive detection of glucose.The TMB-HRP-OPD sensor exhibited linear range of 0.1-3.0 μmol/L and 4.0-30 μmol/L respectively for detection of glucose, with limit of detection of 0.02 μmol/L.Furthermore, it was successfully applied to the determination of glucose in real human serum and the results were in good agreement with the clinical data.

Objective To investigate the feasibility of laparoscopic radical gastrectomy for gastric cancer.Methods Laparoscopic radical gastrectomy was performed in 8 cases from Febrary 2005 to April 2005,including radical distal gastrectomy in 6 cases,radical total gastrectomy in 1 case,and radical proximal gastrectomy in 1 case.Results All the 8 patients underwent laparoscopic radical gastrectomy smoothly and no conversion to open surgery was required.The operation time was 340?62 minutes in radical distal gastrectomy,was 362 minutes in radical proximal gastrectomy,and 423 minutes in radical total gastrectomy.The intraoperative blood loss was 100～250 ml(mean,140 ml) in radical distal gastrectomy,300 ml in radical total gastrectomy,and 170 ml in radical proximal gastrectomy.No blood transfusion was needed.The number of havested lymph nodes was 18～37(mean,23).No surgical-related complications occurred.The time to first flatus was 38～56 hours(mean,42.4 hours),and the time to liquid diet was 2～5 days(mean,2.5 days).All the 8 cases were followed for 12～14 months postoperatively and no recurrence or metastasis was observed.Conclusions Laparoscopic radical gastrectomy is a feasible technique for patients with gastric cancer at early stage or early progressive stage.

Objective To study the risk factors for failure of INSURE strategy in very and extremely low birth weight preterm (V/ELBW) infants.Method From January 2005 to December 2014,clinical data of 149 preterm infants (gestational age less than 32 weeks) admitted to neonatal department of Tongji Hospital who received intubation-surfactant-extubation (INSURE) strategy were collected.These infants were assigned into two groups:INSURE failure group and INSURE success group,according to whether a second dose of surfactant or mechanical ventilation was needed within 72 hours after first pulmonary surfactant treatment.The clinical characteristics and outcomes between the two groups were compared.Chi square and t tests were used to define the differences between groups.Logistic regression analysis was used to identify the independent risk factors for INSURE failure.Result Among the 1 149 patients,148 received INSURE treatment,and 113 cases (76.4％) were successfully treated with the INSURE strategy.The infants in the failure group were statistically lower in birth weight,gestation age,antenatal steroids utilization rate,PaO2 and PaO2/FiO2 than those in the success group,while the age of mother,male/female ratio and PaCO2 were higher in the failure group.Logistic regression analysis showed that male (OR =7.440,95％ CI 1.846 ～29.984),BW ＜ 1 000 g (OR =9.180,95％ CI 1.716 ～49.105),PaCO2 ＞48 mmHg (OR =5.996,95％ CI 2.088 ～ 17.213),PaO2/FiO2 ＜205 (OR =3.010,95％ CI 1.033 ～8.774) were independent risk factors for INSURE failure.Conclusion INSURE strategy failure was associated with gender,birth weight,gestation age,antenatal steroids utilization,PaO2,PaCO2 and PaO2/FiO2 of the first blood gas after birth.BW ＜ 1 000 g,PaCO2 ＞ 48 mmHg and PaO2/FiO2 ＜ 205 of the first blood gas after birth were independent risk factors for INSURE strategy failure.

Nuclear factor-E2 related factor 2 (Nrf2)can protect the normal cells from the damage of oxidants and electrophones,preventing tumorigenesis and metastasis.However,the abnormal activation of Nrf2 in tumor cells can lead to tumor development.Chemicals acting on Nrf2 pathway include activators and inhibi-tors,Nrf2 inhibitors can increase the chemosensitivity of the tumor,providing a new idea for the drug design of high-efficiency and low-toxicity.

Objective To evaluate the effect of probucol combined with simvastatin on blood levels of oxidied low density lipoprotein (ox-LDL) and inflammatory factors in acute stage of cerebral infarction. Methods A total of 122 patients with acute stage of cerebral infarction were randomly divided into two groups:observation group ( n = 62),and control group( n = 60). After two weeks of follow-up ,the levels of high sensitivity C-reactive protein(hsCRP) ,oxLDL ,fibrinogen ( FIB ), interleukin 6 (IL-6) and blood lipids were detected. The side effect was recorded and the difference between two groups was analyzed. At 7 d and 14 d, curative effects were evaluated by standard scale of clinical neurological deficit. Results Compared with the control group, 2weeks after the medication, low-density lipoprotein cholesterol( LDL-C), apolipoprotein B ,ox-LDL, IL-6 and hsCRP were significantly decreased in the observation group (P <0.01 ). Conclusion The treafment of probucol combined with simvastatin could reduce the levels of ox-LDL and inflammatory factors in acute stage of cerebral infarction, and prevent hemorrhagic transformation and recurrence of cerebral in farction.

Objective: To investigate the diagnostic value of 64 multislice spiral CT (64-MSCT) and 1.5T MRI in nurseling with congenital vascular rings.
Methods:We retrospectively studied the diagnostic records of 64-MSCT and 1.5T MRI in 48 nurseling with congenital vascular rings. There were 42 cases received CTA, 12 received MRA and 6 received both CTA and MRA. We classiifed the types of vascular rings by Edwards sketch map of aortic arch embryonic development and trachea wrapping conditions. The diagnostic values of 64-MSCT and 1.5T MRI on vascular rings were compared.
Results: There were 25 patients with complete vascular rings including 3 of double aortic arch, 12 right aortic arch with left subclavian artery and patent ductus arteriosus (PDA), 9 combining with arterial ligament, 1 neck right aortic arch with left subclavian artery combining left PDA;and 23 patients with in-complete vascular rings including 2 pulmonary artery sling, 9 left aortic arch with right subclavian artery combining left PDA, 10 combining with arterial ligament, 1 right aortic arch with left subclavian artery combining right PDA, 1 with innominate artery compressed trachea. There were 32/48 patients combined with cardiac malformations, both 64-MSCT and 1.5T MRI may well reveal the composition and special relationship of vessel rings. The minimum intensity projection (MinIP) and air volume rendering (VR) of 64-MSCT may clearly display the morphology and development of trachea, image fusion technique could directly show the special relationships among vascular rings, trachea and esophagus. While 1.5T MRI was relatively poor to present tracheal image.
Conclusion: 64-MSCT could accurately and comprehensively display the special relationships among the vessels rings, trachea and esophagus;which was the best method for diagnosing the nurseling with vessel rings in clinical practice.

Animals ; Epilepsy ; drug therapy ; physiopathology ; Hippocampus ; physiopathology ; Long-Term Potentiation ; Male ; Maze Learning ; drug effects ; Phytotherapy ; Pyrazines ; pharmacology ; therapeutic use ; Rats ; Rats, Sprague-Dawley

Adult ; DNA, Viral ; Female ; Hepatitis B virus ; Humans ; Lamivudine ; therapeutic use ; Liver Neoplasms ; drug therapy ; genetics ; virology ; Male ; Middle Aged ; Point Mutation ; Retrospective Studies

Objective To explore a better method to diagnose the brachial plexus injury as pre-or post-ganglionic,which is quick,simple,quantitative,cheap and accurate.Methods Forty-five SD rats were divided randomly ino pre-or post-ganglionic brachial plexus injury models group,and the choline acetyl- transferase(CHAT)activity was detected by using the radioisotope after different days.Results The ChAT activity of two groups both fall day by day:in the pre-agnglionic group,it falls quickly,and reach 1/10 of nor- mal(675?258)cpm;in the post-ganglionic group,it falls slowly,and reach 1/2 of normal even after 90 days (4906?1119)cpm.Conclusion Intra-operative measure of ChAT can be used to differentiate pre-or post- ganglionic brachial plexus injury.

OBJECTIVE:To explore the ideas for the prescription comment of TCM injections,and provide reference for clini-cal rational use. METHODS:Totally 9 457 prescriptions in PIVAS and 400 hospitalized medical records in our hospital in 2015 were collected. The prescriptions and hospitalized medical records which contained TCM injections were retrospectively commented in aspects of indications,usage and dosage,drug combination,solvent selection and repeat medication,and analysis of typical case. RESULTS:In 2015,there were 2 544 prescriptions(26.90%)in PIVAS and 195 medical records(48.75%)that used TCM injections;the irrational use was mainly inappropriate solvent selection(50.70%),inappropriate usage and dosage(27.00%),inap-propriate indications (10.33%),inappropriate combination therapy (7.51%) and repeat medication (4.46%). CONCLUSIONS:Prescription of TCM injections should be commented with the medical records and individual analyzed;in terms of unreasonable prescriptions and medical records TCM clinical pharmacists should actively intervene unreasonable prescriptions by the bed.