Objective To access the relationship between the polymorphism of G protein-coupled receptor kinases 4(GRK4,including R65L,A486V and A142V) and essential hypertension.Methods All the literature on the subjects was searched by keywords such as essential hypertension,hypertension,G protein-coupled receptor kinases 4 gene,and polymorphism in the electronic databases,Medline of Year 1997 to 2006.RevMan 4.2 software was used for Meta analysis.Results A total of 857 cases and 913 controls from 4 studies were included.The ORs of genotypes of R65L,A142V and A486V were 0.97(0.75 to 1.25,P=0.81),0.81(0.30 to 2.08,P=0.65) and 1.48(1.16 to 1.8,P=0.001) respectively.Conclusion GRK4 gene polymorphism A486V is significantly associated with susceptibility of essential hypertension.People who carries A486V have a higher risk to be subject to essential hypertension.

[Objective ] To evaluate the curative effect of urinary retention caused by hyperplasia of prostate gland after treatment of electric acupuncture to Ciliao and Zhongliao acupoints combined with ultrashort wave therapy.[Methods] 35 patients were treated by electric acupuncture to Ciliao and Zhongliao acupoints cooperating with ultrashort wave therapy.Residual urine volumn(RUV),frequency of urinary retention,the therapeutic effect and follow-up were recorded and statistically analyzed.[Results] 29 patients were able to urinate after the therapy,except for 6 patients who were still in urinary retention condition.Effective rate were up to 82.8%.[Conclusion] It proved that the less the frequency was,the better the clinical effect would be.However,no matter how frequent the retention was,our combination therapy still worked,and both effects of the near future and long-term were proved to be fine.Special therapeutic action from Shu acupoint,electric acupuncture's electric current effect,and physical therapy of ultrashort wave contributed to the outcome.

The effect of recombinant human phospholipase D2(rhPLD2)in vivo was investigated on the secretion of serum glycosyl phosphatidylinositol-specific phospholipase D(GPI-PLD)in guinea pigs of chronic asthma．Ater treating the guinea pigs attacked by chronic asthma with rhPLD2,the GPI-PLD activity detection was canrried out by phase separation of human placental alkaline phosphatase in Triton X-114．Compared with the healthy guinea pigs(NS group),the serum GPI-PLD in the guinea pigs of chronic asthma are much higher than that of control groups,P≤0．01．Our results showed that rhPLD2 could significantly reduce the secretion of GPI-PLD when the guinea pigs were attacked by chronic asthma．

Objective To evaluate the value of retrospective ECG-gated 256 slices spiral CT technique in the scanning of inferior phrenic artery (IPA).Methods 80 patients with underdone abdominal CTA were divided randomly into two groups (40 patients each)as regular abdominal CTA scanning group and retrospective ECG-gated technique group.And further analysis was done to evaluate the display of IPA branches and the image quality.Results 80 patients were all scanned successfully.40 cases LIPA and 40 cases RIPA were showed in the regular group.80 cases showed 1st level branches of IPA,73 cases with 2nd level,59 cases with 3rd and 43 ca-ses showing 4th level.40 cases LIPA and 40 cases RIPA were showed in ECG-gated group.And the numbers of IPA branches levels were 80,79,71,65,respectively.There is no significant difference in the ability of showing the1st level IPA or their image quality between those two groups (P >0.05);and there is a statistical significance in the ability of showing other levels of IPA and their im-age quality.Conclusion It is feasible that we use retrospective ECG-gated 256 slices spiral CT scanning technique to show the IPA. And it could improve the ability of showing the IPA branches as well as the image quality.

Objective To observe the levels of cAMP and adenylyl cyclase(AC) in hippocampus of mice with vascular dementia(VD) and the effect of Dihydroergocriptine(DHE),and to explore the molecular pathogenesis of VD.Methods The mice were subjected for ischemia-reperfusion three times on bilateral common carotid arteries by knots to establish models of VD and the changes of learning and memory were tested on d29/d30 after operation.DHE was administrated to another group of mice,which was taken as treatment group.The cAMP level was evaluated by the radioimmunoassay;AC mRNA positive neurons of hippocampus CA1 area were examined through in-situ hybridization.Results Compared with shamed-operation group,the learning and memory of model group was worse(P

Objective To investigate the calcium signal transduction pathway in hippocampal neurons of mice with vascular dementia (VaD) and the intervention effect of dihydroergocriptine (DHE). Methods The mice were subjected for ischemia-reperfusion repeatedly on bilateral common carotid arteries by knots to establish the VaD models. Animals with sham-operation were taken as control group. The treating group was administered with DHE after the establishment of VaD model. The behavior changes were observed through the step-down avoidance test and water maze test on the 29th and 30th days after operation. The resting 〔Ca 2+〕 i level of hippocampal neurons was evaluated by laser scanning confocal microscopy. RT-PCR technique was used to measure mRNA expression of CaM an CaMPKⅡ in hippocampal neurons. Results The resting 〔Ca 2+〕 i level in model group(43.50?3.00) was significantly higher than those in the sham-operation group (25.50?3.50) (P

ObjectiveTo study the feasibility,efficacy and safety of u tilizing the laryngeal mask airway (LMA) ventilation compared with the endotracheal intubation ( ET ) in neonatal resuscitation for moderate and severe asphyxiated neonates.MethodsNeonates requiring positive pressure ventilation with heartrate ＜60 beats/min were collected and grouped quasi-randomizedly into LMA(36 cases) or ET(32 cases)ventilation.Differences of resuscitation effect,inserting time,successful once insertion rate and adverse reactions between the two groups were observed and compared.Results( 1 ) No significant difference was observed in Apgar scores at 1 min and 5 min between the two groups ( P＞0.05 ).(2) Success rate of once insertion was 94.4％ with average inserting time ( 7.58±1.16 ) s for LMP group,while it was 90.6％ and ( 7.89 ± 1.52) s for ET group.( 3 ) Successful resuscitation rate of LMA group ( 86.11％ ) was slightly lower than ET group (96.88％ ),but there was no statistical difference (P＞0.05).(4) Mean response time of LMA group [ (34.06 ± 10.56) s] was slightly lower than that of ET group [ (41.38 ±27.19) s],also ventilation time of LMA group [( 137.19 ±80.14) s] was slightly lower than that of ET group [ ( 171.09±84.28 ) s ],but neither showed statistical difference ( P＞0.05 ).(5) Adverse reactions were found in LMA group including nausea( 2 cases )and abdominal distention (1 cases),while there were laryngeal edema( 1 cases),pneumothorax(2 cases),respiratory tract bleeding( 1 cases) in ET group.ConclusionThe LMA ventilation is much easier to operate,with its effect no less than that of ET ventilation on resuscitation for moderate and severe asphyxiated cases,even it seems more safe.LMA ventilation can be a good substitute for ET ventilation,especially for those medical staffs who are unfamiliar with ET operation and primary hospital doctors in case of emergency.

Objective To detect EPPB41L3 methylation frequency difference between esophageal squamous cell carcinoma (ESCC) tissues and the normal tissues and between ESCC patients′plasma and healthy volenteers′plasma, and to analyze the correlation with clinicopathological parameters. Methods We collected esophageal squamous cell carcinoma tissues (n = 42 patients) and adjacent surrounding normal tissues (n = 42 patients), and plasma from 42 patients with ESCC and from 50 healthy individuals. We used methylation specific PCR (MSP) combined with agarose gel electrophoresis to detect the methylation status of the EPB41L3. We used the SPSS 13.0 software for statistical analysis by χ2 test and Fisher′s exact test. Results EPB41L3 frequency of methylation was significantly higher in tumor tissues than in the adjacent tissues (59.5% vs. 4.8%), the difference was statistically significant (χ2 = 28.873, P < 0.001). For plasma, EPB41L3 methylation frequency was 31.0%in cancer patients, while was not detectable in the healthy volunteers. Methylation of EPB41L3 in tissues was more frequently found in patients with tumor size of ≥ 5 cm or T3 than in patients with tumor size of < 5 cm or T1-2. Conclusions The methylation frequency of EPB41L3 is higher in ESCC tissues than in control normal tissues, and higer in plasma from ESCC patients than that from the healthy volunteers. EPB41L3 methylation is more frequently found in patients with more advanced disease.

Objective To discuss the correlation between aortic elasticity and coronary artery calcification by CT.Methods Totally 111 patients who were diagnosed of coronary artery disease underwent coronary artery CTA.The images were qualified for aortic elasticity measurement.All patients were divided into calcification negative group (n=43) and calcification positive group (n =68).The calcification positive group was further divided into light,medium,and serious groups according to their calcification scores.The ascending aortic images were reconstructed every 5 ％ R-R intervals.The cross-sectional areas and diameters of aortic in each R-R interval were measured automatically,then diameter variation rate (％ A0),aortic distensibility (A0D),aortic compliance (A0C) and aortic stiffness (A0SI) were calculated to evaluate aortic elasticity.Correlation between aortic elasticity and coronary artery calcification were analyzed.Results ％ A0,A0 D,A0C were lower and A0SI was higher in calcification positive group than those in calcification negative group (all P＜0.05).There was no significant differences in the four reference indexes of aortic elasticity among light,medium,and serious groups in calcification positive group (all P＞0.05).Correlation analysis demonstrated negative correlations between ％ A0,A0 D,A0 C and calcification scores,and a positive correlation between A0SI and calcification scores.Conclusion Aortic elasticity is correlated with coronary artery calcification,and the combination of them will be beneficial for the early diagnosis of coronary heart disease.

Objective To measure the organ weights , blood physiological and biochemical parameters , and immune cells of BALB/cA-nu mice .Methods BALB/cA-nu mice at five and ten weeks of age were selected , and the organ weights , blood physiological and biochemical parameters were observed .The percentages of CD 3+, CD4+, CD8+, CD19+, B220+, NK1.1+, and CD11b+were detected by FCM in BALB/cA-nu mice at six weeks of age in terms of its T, B lymphocyte cells and NK cell activity .Results At the same age, the weights of the body , liver, and kidney in male mice are significantly higher than females .The HGB、MCH、HCT in male mice are significantly higher than females (P <0.05).The weights of the lung, liver, and kidney, and the parameters of TP、GLOB、CHO、TBIL、UN are significantly lower at five weeks of age comparing with ten weeks (P <0.05).The BALB/cA-nu mice lacks T cells(0.18 ±0.06)%、CD4+T cells(0.26 ±0.08)%、CD8+T cells(0.13 ±0.04)%、The percentage of B cells is CD19+B cells (30.10 ±2.74)% and B220 +B cells(30.55 ±2.77)%.The percentage of NK cells is (1.35 ±0.29)%, and the percentage of granulocytes is (47.90 ±5.48)%.The BALB/cA-nu mice lack T cells and the group of cells .Conclusion The study suggests that the organ weights , blood physiological and biochemical parameters are affected by age and gender in BALB/cA-nu mice that lack T cells immune function .The studied parameters of BALB/cA-nu mice are similar with the same strain in other countries .