Objective To investigate the type of gene mutation and its distribution in patients with thalassemia in Chongqing ,in order to guide prenatal and postnatal care .Methods PCR and membrane hybridization technology for α-thalassemia andβ-thalasse-mia gene detection .Results From September 2012 to September 2013 ,349 thalassemia patients were detected ,including 125 α-thalassemia patients and 211β-thalassemia patients .Based on genotypes ,gene deletions were the most common type of gene muta-tion of α-thalassemia patients .Southeast Asia deletion - -SEA/αα(accounted for 73 .60 % ) and the right deletion -3 .7/αα(ac-counted for 19 .20% ) were the major types of gene deletion .Forβ-thalassemia patinets ,the hot spots of mutation were CD17(A→T) ,CD41-42(-TCTT) and IVS-Ⅱ-654(C→ T) ,which accounted for 29 .38% ,28 .91% and 27 .49% respectively .α-thalassemia combined with β-thalassemia mutations were detected in 13 patients .Conclusion Studing the gene mutation types of thalassemia and its distribution provides valuable information for genetic counseling and clinical therapy in Chongqing .

Objective: To construct a lentiviral expression vector that inhibits enhanced green fluorescent proteins(EGFP).Methods: The EGFP shRNA was cloned into the pLL3.7 lentivirus vector digested with XbaⅠ/XhoⅠ.J558L and Hela cells were infected by lentiviruses,and the EGFP expression was observed with the fluorescence microscope.Results: The EGFP RNAi sequence was correctly cloned into the lentivirus vector with the U6 promoter,and the EGFP expressions of Hela and J558L cells were suppressed after infected by lentivirus containing EGFP shRNA. Conclusion: The lentivirus vector effectively inhibited EGFP expression,which could be used to mediate further researches on gene function.

Objective To prepare and explore the pharmacokinetic parameters for ~ 99 Tc~ m -ASON-EGF in healthy rabbits. Methods ~ 99 Tc~ m -ASON-EGF was prepared according to previous methods and its changes of concentration in blood were measured by radioactivity counts per minute. The experimental data were dealt with by 3p97 software and its true compartment model was estimated by AIC value, R~ 2 value, the 1/c and F test. Subsequently, its half-life of distribution (T_ 1/2 ?), half-life of elimination (T_ 1/2 ?), central compartment volume of distribution (Vc), total apparent volume of distribution (Vd) and total rate of clearance (CL) were calculated by the software. Finally, the binding rate of plasma protein was determined by trichloroacetic acid precipitation. Results The best model of ~ 99 Tc~ m -ASON-EGF in vivo was two-compartment model and its T_ 1/2 ?, T_ 1/2 ?, Vc, Vd and CL were 5.28 min, 89.23 min, 67.8 ml, 915.6 ml and 7.1 ml/min respectively. After being incubated with fresh plasma for 1.5 h, its binding rate was 10.69%. Conclusion Its process of transportation in healthy rabbits is fitted to two-compartment model and the pharmacokinetic properties are desirable.

OBJECTIVETo compare the effects between slow twisting needle insertion and tubing needle insertion.

METHODSWith cross-over design, 100 healthy young subjects (half male and half female) aged from 19 to 23 years were randomly divided into two groups by random digital table, 50 cases in each one. At the first stage, subjects in the group A were treated with slow twisting needle insertion while, subjects in,the group B were treated with tubing needle insertion. One week later, the procedure of second stage was performed alternately. The needle was inserted into Neiguan (PC 6) with two methods by one acupuncturist. The needle was retained for 5 min before removal. Five min before needle insertion as well as needle withdrawal and 30 min after needle withdrawal, ZXG-E automatic cardiovascular diagnostic apparatus was used to test cardiovascular function.

RESULTSAt the tim of needle withdrawal, slow twisting needle insertion could improve effect work of kinetics (EWK), effective blood volume (BV) and reduce elastic expansion coefficient of blood vessel (FEK) and left ventricular spray blood impedance (VER), which was significantly different from tubing needle insertion (all P < 0.05). Thirty min after needle withdrawal, the differences of the indices of cardiovascular function between the two groups were not significant (all P > 0.05).

CONCLUSIONThe slow twisting needle insertion is significantly superior to tubing needle insertion on lowering vascular tension and VER, improving EWK and BV.

Acupuncture Points ; Acupuncture Therapy ; instrumentation ; methods ; Blood Circulation ; Blood Volume ; Coronary Vessels ; physiology ; Female ; Humans ; Male ; Needles ; Ventricular Function ; Young Adult

Objective To detect the plasma level of tissue factor (TF) in non-small cell lung cancer (NSCLC) patients,and to discuss its association with hypercoagulation,venous thromboembolism and prognosis of lung cancer.Methods Sixty-one impatients in our hospital with confirmed lung cancer were enrolled as the study group.Thirteen patients with benign pulmonary diseases and 14 healthy volunteers were selected as the control groups.Bseline and follow-up clinical data were collected from participants.Enzyme-linked immunosorbent assay (ELISA) was used to detect the levels of TF in plasma of all subjects.Results The levels of TF in plasma from NSCLC patients and participants with benign pulmonary diseases was significantly higher than that in healthy controls((550.88 ± 201.58) ng/L vs (510.77 ± 201.20) ng/L vs (178.34 ±66.73) ng/L,P ＜0.05).According to the plasma levels of TF,which have been detected in all subjects,the patients were divided into two groups:low level group (range from 103.73 ng/L to 476.22 ng/L) and high level group (range from 476.221 ng/L to 1003.00 ng/L).Statistical analysis showed that there was a positive correlation between plasma TF levels and TNM stages in NSCLC patients (P =0.026).Patient with metastasis had a higher plasma TF level than other patients (P =0.020).The log-rank test revealed that there was no significant difference in survival between the high level group and low level group (x2 =0.145,P =0.704).Multivariate Cox proportional hazards regression analysis indicated that plasma TF levels did not predicted for death(RR =1.001,95％CI0.998-1.004,P=0.452).Conclusion The plasma TF level in NSCLC patients was correlated with TNM stages;it had no significant relationship with hypercoagulation state and survival rate in NSCLC patients.Limitations should be aware of while evaluating the clinical course and prediction of prognosis of NSCLC patients using plasma TF levels.

Objective To discuss the effects of repairing nasal ala defects by free transplantation of autogenous auricle composite tissue flap. Methods 50 cases with nasal ala defects were repaired by free auricular composite tissue flap transplantation from Janu 2003 to May 2013. The defects size was 0.5cm x 0.7cm~1.3cm x 1.5cm. According to the size of the defects, full thick wedge-shaped auricle composite tissue flap were cut off, then inserted into the nasal ala defects area and fixed stablely, the donor sites were sutured directly avoiding ear cartilage. Salvianolate and hyperbaric oxygen were used in postoperative treatment for 5-7 days. Results 48 cases achieved good results, 2 cases had partial necrosis of composite tissue flap after operation, also achieved good results after reoperation. Over 3 months~5 years follow-up, all cases had satisfactory results. The volume of auricle composite tissue flap reduced less than 10%. Surgical incisions had a linear scar, good color matching, nostril symmetry. All patients were satisfied with the overall appearance. Conclusions Autogenous auricle composite tissue flap free transplantation for repairing middle and small size of nasal ala defects can recover ala formation and structure very well, nasal appearance can be improved greatly with nostril symmetry. There is no hypertrophic scar in donor sites. This method is simple and easy,and is also a good method for repairing nasal ala defects.

Prospective payment rates based on diagnosis related groups (DRGs)have been established as the basis of Medicare' s hospital reimbursement system.The purpose of the DRGs is to relate a hospital's case mix to the resource demands and associated costs experienced.The patient characteristics included in the definition of each DRG relate to a common organ system or etiology,and each DRG should contain patients,who are similar from a clinical perspective,with a similar pattern of resource intensity.DRGs were divided by principle diagnosis,major surgery,major complication and/or comorbidity,age,sex,birth weight etc.Using a grouping software(version 18)by DRG definitions used in the United Stated,we encoded the hospital discharge data of all secondary and senior hospitals in Beijing.After analyzing the DRG grouping,as well as rationality and weighting of these DRG groups,we concluded that it was feasible to encode Chinese data using US DRG definitions with specific adjustments accommodating to relevant conditions in China.

Objective To study the asymmetric dimethylarginine(ADMA) concentrations in plasma of acute coronary syndrome (ACS) and its various subgroups ,and analyze the relationship between ADMA and traditional risk factors of ACS .Methods 101 ACS patients were enrolled in the study ,which were divided into several subgroups according to clinical diagnosis ,ECG and coro‐nary angiography .ACS group were divided into unstable angina(UA) group(n=70) and acute myocardial infarction(AMI) group (n=31) ,then AMI group was divided into non‐ST segment elevation myocardial infarction(NSTEMI) group(n=19) and ST seg‐ment elevation myocardial infarction (STEMI) group(n=12) .The control group(n= 40) were recruited in the study during the same period ,who showed normal coronary arteries in coronary angiography .All the patients received coronary attery angiography . The plasma ADMA concentration was measured by using enzyme‐linked immunosorbent assay (ELISA) ,and serum contents of lip‐id(TC ,TG ,HDL‐C ,LDL‐C) ,C‐reactive protein(CRP) ,troponin were detected by automatic biochemic analysis apparatus .Results Compared with the control group ,plasma ADMA concentration of ACS group increased ,the difference was statistically significant (P<0 .05) .The concentrations of ADMA in AMI group and UA group were higher than those in control group ,and the difference was statistically significant(P< 0 .05) .The concentrations of ADMA in AMI group were significantly higher than those in UA group(P<0 .05) .Plasma ADMA negatively correlated with HDL‐C concentrations(r= -0 .222 ,P<0 .05) ,positively correlated with LDL‐C concentration(r=0 .357 ,P<0 .05) ,and positively correlated with CRP(r=0 .619 ,P<0 .05) .Conclusion The occur‐rence of ACS and some of its related risk factors are correlated with plasma ADMA concentration .

We have developed a rapid and high throughput lipase-ANS (8-Anilino-l-naphthalenesulfonic acid) assay to evaluate the thermo-stability of lipases based on the ANS fluorescence signal's increasing and shifting when this small fluorescence probes binds to lipase. The testing lipase samples were incubated at a temperature range of 25 degrees C to 65 degrees C for 30 min before mixed with ANS solution (0.20 mg/mL lipase and 0.05 mmol/L ANS in the buffer of 20 mmol/L Tris-HCl, 100 mmol/L NaCl, pH 7.2) in a cuvette or microplate. Fluorescence signals of the samples were measured at EX 378 nm, EM 465 nm with a fluorescence photometer or a plate reader, and Tm was calculated with the software of GraphPad Prism5.0. The Tm values of several mutants of Penicillium expansum lipase (PEL) were measured with this ANS assay and conventional method simultaneously and the results show that Tm values are comparative and consistent between these methods, suggesting that the lipase-ANS assay is a reliable, rapid and high throughput method for lipase thermo-stability measurement.
Anilino Naphthalenesulfonates ; chemistry ; Enzyme Stability ; High-Throughput Screening Assays ; methods ; Hot Temperature ; Lipase ; metabolism ; Spectrometry, Fluorescence

Objective:To study the clinical value of the ISBAR communication model based on nursing priorities in nursing ward rounds.Methods:Using a quasi-experiment method, 104 patients who received secondary and tertiary care from April to June 2020 were set as the control group, and 122 patients who received secondary and tertiary care from July to September 2020 were set up as the experimental group, with non-randomized method. The experimental group used the ISBAR communication model based on nursing priorities for nursing ward rounds, and the control group used the traditional method for nursing ward rounds. The abilities of bedside nurses collecting the patients′condition, the bedside nurses′ condition observation and the nurses′ critical thinking were compared between the two groups, and the patients' nursing quality and satisfaction were also compared.Results:The scores of the bedside nurses′ knowledge of the patients′ condition were 81.14±3.09 in the test group and 75.90±2.84 in the control group, with statistically significant difference ( t value was -12.88, P<0.01). The scores of the bedside nurses′ ability in observing patients′ condition were 140.50 (137.00, 144.50) in the experimental group and 135.50 (128.75, 139.00) in the control group, with statistically significant difference ( Z value was -3.399, P<0.01). The scores of the Critical Thinking Disposition Inventory Chinese-version (CTDI-CV) were 309.82±36.33 in the experimental group and 286.86±33.54 in the control group, with statistically significant difference ( t value was -2.177, P<0.05). The scores of patient care quality evaluation were 62.50 (60.00, 64.00) in the experimental group and 59.00 (55.00, 61.50) in the control group, with statistically significant difference ( Z value was -6.47, P<0.01). The patient discharge satisfaction score of the experimental group was 53.00 (48.75, 55.00), and that of the control group was 51.00 (44.00, 54.00), with statistically significant difference ( Z value was -3.56, P<0.01). Conclusions:The application of ISBAR communication model based on nursing priorities in nursing ward rounds had a significant promotion effect on the improvement of nurses' abilities of collecting the patients′ condition, observing patients′ condition, and critical thinking, and can effectively improve nursing care quality and patients′ satisfaction.