Objective:To investigate the value of myocardial velocity gradient(MVG) in diagnosis of myocardial ischemia.Methods:Thirty-eight patients with coronary artery disease and twenty-eight healthy volunteers were enrolled in this study,MVG-L+ in systolic stage and MVG-L-in diastolic stage were measured from apical four chamber and two chamber view.Results:In normal group,MVG-L+ and MVG-L-was slightly different among basal,middle and apical segments of left ventricular wall,which was no statistical difference.Compared with normal group,MVG-L+ and MVG-L-measured from myocardial ischemia group significantly decreased.Conclusion:MVG can quantitatively analyze the motional state of regional myocardium,alternatively providing an effective index of evaluating cardiac function in coronary artery disease.

Objective To investigate the relationship between blood uric acid and insulin resistance in the patients with GDM.Methods The various biochemical parameters such as uric acid ( UA),fasting plasma glucose (FPG),fasting insulin(FINS) and insulin resistance index(IRI) were detected in 80 patients with GDM and 40 normal pregnant women.80 patients with GDM were divided into A group ( hyperuricemia,UA ＞ 360 μmol/L,31 cases ) and B group (normouricemia,49 cases ) to observe and compare the changes of each biochemical parameter.Results Compared to the control group,there were significant differences in FPG [ (7.87 ± 0.69 ) mmol/L,t =17.0842 ],UA [ ( 308.87 ± 79.12) μmol/L,t =2.1758 ],FINS [ ( 15.87 ± 5.12 ) mU/L,t =3.5410 ] and IRI [ (2.27 ±0.72),t =7.1247] (all P ＜0.05).There were significant differences in FPG(8.38 ± 0.46) mmol/L,TG ( 373.97 ± 29.12 ) μmol/L,FINS ( 15.87 ± 5.12 ) mU/L,IRI ( 2.47 ± 0.12 ) between group A and group B ( t =5.7187,12.3116,2.3185,11.2835,all P ＜ 0.05 ).The blood uric acid level was positively related to FINS,IRI,TG in the patients with GDM( r =0.839,0.720,0.660,all P ＜ 0.05 ).Conclusion There was correlation between the blood uric acid level and insulin resistance in the patients with GDM.

Objective To summarize the clinical experience of serious hyponatremia resulted from applying pitnitrin to massive hemorrhage of gastrointestinal tract patients.Methods we used pitritrion on 2460 such patients and examined some symptoms of the digestive tract and nerve system,monitoring the dynamic state of blood sodium.Results The re- suits reveal that patients in 30 cases turned out to suffer from serious hyponatremia,whese sodium in the serum appeared less than 110 mmol/L,which was 1.22% of the rest subjects'.The relevant symptoms included nausea,vomit,spoor,coma and twitch etc.Following remedies included liquid supply with a high-concentrated sodium,ceasing using pituitrin,in- take of salute foods,and dynamic monitoring on the state of sodium in the serum.All patients recovered in 1 to 3 days without a single failure.Conclusion Thus we reach this conclusion:When applying pituitrin to massive hemorrhage of gastrointestinal tract patients,the above mentioned symptoms should be closely examined,and blood sodium should be timely monitored so that proper treatment should arrive in time.

Objective To evaluate the clinical application of HLA matching in highly sensitized recipients of renal allografts.Methods Recipient's panel reactive antibody (PRA) was detected by using ELISA test with Lambda antigen tray (LAT).Donor and recipient HLA classⅠtyping was performed with special monoclonal tray,and HLA classⅡgene typing with micro-sequence specific primers (Micro-SSP).Results There were 104 recipients with anti-HLA class-ⅠIgG antibody,76 with anti-HLA class-ⅡIgG antibody,and 44 with both anti-HLA class-1 and anti HLA class-ⅡIgG antibody respectively in 136 sensitized recipients.HLA class-ⅠIgG antibody positive rate was 11%-97 %,with an average of 49.6%?23.8%;The common public epitopes antibody was not found in each recipient of 13 cases with PRA＜20%,but was found in I2 recipients in 44 cases with PRA be- tween 20%-50%,and 39 recipients in 47 cases with PRA＞50%.HLA class-ⅡIgG antibody posi- tive rate was 17%-100%,with an average of 28.2%?63.8%.The number of cases of 0,1,2,3, 4 MM was 7 (5.1%),26 (19.1%),47 (34.6%),39 (28.7%) and 17 (12.5%) respectively by the standard of conventional HLA antigen matching;however the number of the recipients with 0,1, 2,3 MM was 31 (22.8%),53 (39.0%),36 (26.5%) and 16 (11.7%) respectively according to the rule of HLA CREGs matching and none with 4 MM.Rates of acute rejection in sensitized recipi- ents with 2MM and 3MM HLA-CREGs were 25.0% and 37.5% respectively and were significantly higher than those with 0MM (P＜0.05,＜0.05 respectively).Kidney year-survival was decreased when the number of MM of HLA CREGs matching increased.Conclusion The HLA CREGs matching can improve the ratio of well-matched significantly.Good HLA matching can reduce the incidence of acute rejection in sensitized recipients and increase the survival rate of grafts.

Child, Preschool ; Diagnosis, Differential ; Humans ; Male ; Myositis Ossificans ; diagnosis ; diagnostic imaging ; pathology ; physiopathology ; Prognosis ; Tomography, X-Ray Computed

7.9 mg. Conclusion This method can meet the requirement of the related guideline and is applicable to the determination of N-Isopropyl aniline in workplace air.

Objective To investigate the plasma visfatin levels and explore the relationship between visfatin and anthropometric parameters,glucose,lipid profile,insulin sensitivity index and insulin secretion index in the subjects with different glucose tolerances.Methods Fifty-three patients with newly diagonosed type 2 diabetes(T2DM),7 subjects with impaired glucose tolerance(IGT)and 35 healthy controls were enrolled.Visfatin levels were measured along with the BMI,blood pressure,lipids,glucose,insulin and HOMA-IR indexes.Results Plasma visfatin levels were elevated in patients with newly diagnosed T2DM compared with IGT group or controls.There was no significant difference in the visfatin levels between IGT group and healthy controls.Plasma visfatin level was positively correlated with glucose levels and HOMA-IR,and negatively correlated with insulin secretion index(HOMA-B).Multiple regression analysis showed that postprandial plasma glucose was independent related factor influencing plasma visfatin levels.In T2DM group,plasma visfatin concentration was positively correlated with HbA1c level.Conclusion The increased plasma visfatin concentration in newly diagnosed and untreated type 2 diabetes mellitus represents a compensatory mechanism aimed at ameliorating the functional consequences of insulin deficiency.

Objective To explore the relationship between organochlorine pesticides exposure after Tangshan earthquake and the breast cancer. Methods 1∶1 matched case-control study was conducted in 150 newly diagnosed cases of breast cancer with histopathological diagnosis from three city-level hospitals in Tangshan,China and 150 matched controls at the same hospitals,without the related diseases. The levels of derivatives of DDT and HCH in serum were measured by gas chromatography (GC) method and epidemiological survey were conducted by questionnaire for 150 pairs of cases and controls. The relationship between the organochlorine pesticides metabolites and the breast cancer of the exposed population was analyzed by conditional logistic regression model by SAS 8.2 Software. Results Compared with the control,significant higher rates of detection of p,p'-DDD and o,p'-DDT were seen in the case group and the levels of p,p'-DDE,?-HCH and ?-HCH in serum were higher in the case group,and there was a significant difference in serum residues levels of ?-HCH,p,p'-DDE and o,p'-DDT in different exposure areas in Tangshan,the high exposure area showed higher residues levels than the low exposure area. Multivariate conditional logistic regression analysis showed high pesticides exposure after the earthquake,the serum residues of p,p'-DDE and p,p'-DDT were associated with breast cancer risk,ORs were 6.592(95%CI:1.402-31.002),2.405(95%CI:1.033-5.600)and 1.845(95%CI:1.028-3.353) respectively. Conclusion Exposure to environmental organochlorines may be one of the risk factors for breast cancer; Higher pesticides exposure after the earthquake may increases breast cancer risk in Tangshan area.

Objective To investigate the relationship between day and night regularity of asymptomatic ventricular presystole (VPS) and the activity of autonomic nervous system and its clinical significance Methods Thirty children with the absence of underlying organic heart disease were examined with 24 hour dynamic electrocardiogram (DCG), the function of autonomic nervous system and ventricular late potentials (VLP) Results The rate (43%, 13/30) was the day type VPS, 12 out of the 13 resulted from increased activity of sympathetic nerve The rate (30%, 10/30) was the night type VPS, all of them resulted from the activity of the vagus nerve enhanced There was a positive correlation between VPS frequency of day type and heart rate ( r =0 67, P

70 y).Five hundred common carotids were assessed in 250 healthy subjects using two-dimentional color Doppler ultrasound (2D-CDUS).The diameter(D),intimal medial thickness(IMT), hemodynamics parameters including shear rate(SR) were recorded. Results:The diameter of normal carotids increased along with age, there was no significant difference among groupⅠ, Ⅱ, Ⅲ and between group Ⅳ, Ⅴ; Respectively compared with group Ⅰ,Ⅱand groupⅢ, the D of group Ⅳ, Ⅴ increase significantly(P