HDL or apolipoprotein A-Ⅰ,the major protein of HDL particles,protect host against vascular endothelial dysfunction.HDL binding to scavenger receptor-BI activates eNOS for increasing NO.SR-BI and Endothelial lipase(EL) play a critical role in the regulation of plasma HDL.Incubation of HDL with vascular endothelial cells promotes prostacyclin synthesis.Some proteins such as paraoxonase that cotransport with HDL in plasma,have antioxidant properties.HDL inhibits TNF-? dependent expression of adhesion molecules in vascular endothelial cells and interferes with apoptosis,proliferation and migration of vascular endothelial cells.

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Objective To study the clinical significance of cerebrovascular reserve (CVR) capacity in cerebral vessels stenosis (CVS) patients with transcranial Doppler (TCD) and end-tidal carbon dioxide partial pressure (PETCO2).Methods Fifty-two CVS patients were divided into two groups:one blood vessel stenosis group (22 cases) and multi blood vessels stenosis group (30 cases).Forty-five normal persons were selected as control group.All the groups were routinely examined with TCD and PETCO2.Hypercapnia was induced by inhaling the carbon dioxide who breathed himself,and hypocapnia was induced by voluntary hyperventilation to investigate the CVR capacity.Results (1)The vasodilator reserve of affected side of one blood vessel stenosis group [(3.16 ± 2.73)％/mm Hg,1 mm Hg =0.133 kPa],the heavier side of multi blood vessels stenosis group [(2.41 ± 1.25)％/mm Hg],and control group [(3.75 ± 1.77)％/mm Hg] had significant difference (F =3.866,P ＜ 0.05).The vasodilator reserve of heavier side of multi blood vessels stenosis group was significantly lower than that of control group (t =-2.657,P ＜ 0.05).The overall reserve of affected side of one blood vessel stenosis group [(3.13 ± 1.38)％/mm Hg],the heavier side of multi blood vessels stenosis group [(2.01 ± 1.89)％/mm Hg],and control group [(3.51 ±0.92)％/mm Hg] had significant difference (F =5.905,P ＜ 0.05).The overall reserve of heavier side of multi blood vesse stenosis group was significantly lower than that of control group and affected side of one blood vessels stenosis group (t =-3.468,2.582,P ＜ 0.05).(2) There was no significant difference among the 3 groups in PETCO2 when eupnea,hypocapnia and hypercapnia.(3) The extent of vascular disease correlated negatively with the vasodilator reserve and overall reserve (r =-0.433 and-0.475,P＜0.05).Conclusions TCD and PETCO2 are simple,economic and effective methods for assessing CVR capacity.The CVR capacity is reduced in patients with cerebral vessels changes.

0.05). The HDL-C level of B 2B 2 genotype (1.46?0.20)mmol/L was significantly higher than that of B 1B 1 genotype (0.90?0.21) mmol/L and B 1B 2 genotype (1.25?0.22)mmol/L, P

Objective To investigate the potential factors affecting the survival rate of extremely low birth weight infant (ELBWI) and to make out a practical strategy. Methods Fourty-four ELBWI were devided to 3 groups according to their birth weight. All the clinical data were reviewed. Results The survival rate on discharge was 52% (22/42) and the mortality rate was 45%(19/42). The survival rate was significantly increased with higher birth weight( P

Objective To study the clinical value of serum cardiac troponin Ⅰ (cTnⅠ) in patients with unstable angina pectoris (UAP) and minor myocardial damage.Methods The serum cTnⅠ level of 60 UAP patients (UAP group) were determined.The patients whose cTnⅠ were ≥ 0.1 μ g/L were ascribed to cTnⅠ positive group,and the patients whose cTnⅠ were ＜ 0.1 μ g/L were ascribed to cTnⅠ negative group.The correlation among clinical data,coronary arterial lesions and adverse cardiac events were analyzed.Forty healthy people were selected as control group.Results The positive rate of cTnⅠ in UAP group (35.0％,21/60) was significantly higher than that in control group (0),and there was statistical difference (P ＜ 0.01).The incidence rate of coronary arterial multi-branch lesions and/or severe stenosis in cTnⅠ positive group (19.0％,4/21) was higher than that in cTnⅠ negative group (5.1％,2/39),but there was no statistical difference (P ＞ 0.05).The incidence rate of 90 d adverse cardiac events in cTnⅠ positive group (33.3％,7/21) was significantly higher than that in cTnⅠ negative group (5.1％,2/39),and there was statistical difference (P ＜ 0.01).Conclusions Low-level cTnⅠ demonstrates minor myocardial damage sensitively and specifically.cTnⅠ level detected quantitatively can help to assess prognosis and provide risk stratification of UAP patients.

Objective To investigate the effect and mechanism of different high concentrations glucose(Glu) on the expression of hypoxia-inducible factor 1α(HIF-1α) in cultured neonatal rat eardiomyocytes under hypoxia and non-hypoxia conditions. Methods Neonatal rat cardiomyocytes were cultured for 6 hours under different conditions and were divided into 6 groups:①Negative control group (5.5 mmol/L Glu) ; ②hypoxia mimicking cobalt chloride(Cocl_2) group(5.5 mmol/L Glu + 400 μmol/L cocl_2 ) ;③Different high concentrations Glu groups: (11.1 mmol/L, 22.2 mmol/L, 33.3 mmol/L Glu);④cocl_2 +different high concentrations Glu groups(11.1 mmol/L Glu +400 μmol/L cocl_2,22.2 mmol/L Glu +400 μmol/L cocl_2, 33.3 mmol/L Glu+400 μmol/L cocl_2);⑤High concentrations Glu + antioxidant α-tocopherol group(33.3 mmol/L Glu + 100 μmol/L α-tocopherol) ; ⑥ High concentrations Glu+antioxidant α-tocopherol+cocl_2 group(33.3 mmol/L Glu+400 μmol/L cocl_2+100 μmol/L α-tocopherol). The effect of high concentrations Glu, cocl_2 and high concentrations Glu plus cocl_2 on the expression of HIF- 1α mRNA and protein in cultured neonatal rat cardiomyocytes, as well as the effect of high concentrations Glu plus antioxidant α-tocopherol, high Glu concentrations plus cocl_2 and antioxidant α-tocopherol on the expression of HIF- 1α mRNA and protein were observed. Results 1. Compared with negative control group(5.5 mmol/L Glu), the 'expression of HIF- 1α was increased under cocl_2 mimicked hypoxia(5.5 mmol/L Glu+400 μmol/L cocl_2, 11.1 mmol/L Glu+400 μmol/L cocl_2 ,22.2 mmol/L Glu+400 μmol/L cocl_2,33.3 mmol/L Glu+400 μmol/L cocl_2). 2. The expression of HIF- 1α was increased gradually after the increasing of Glu concentrations(5.5 mmol/L, 11.1 mmol/L, 22.2 mmol/L and 33.3 mmol/L Glu).3.The expression of HIF-1α was decreased gradually after the increasing of Glu concentrations under certain cocl_2 plus different high concentrations Glu (5.5 mmol/L Glu+400 μmol/L cocl_2, 11.1 mmol/L Glu+400 μmol/L cocl_2, 22.2 mmol/L Glu+400 μmol/L cocl_2,33.3 mmol/L Glu+400 μmol/L cocl_2). 4. Under high concentration Glu plus antioxidant α-tocopherol (33.3 mmol/L Glu+100 μmol/L α-tocopherol) ,the expression of HIF- 1α was less increased than the same high Glu concentration(33.3 mmol/L Glu). 5. Under high Glu concentration plus cocl_2 (33.3 mmol/L Glu+400 μmol/L cocl_2), the expression of HIF- 1α increased less than that of the same high Glu concentration plus antioxidant α-tocopherol and cocl_2 (33.3 mmol/L Glu+400 μmol/L Cocl_2+ 100 μmol/L α-tocopherol). Conclusions High glucose increases the expression of HIF-1α under non-hypoxia, but blunts the expression of HIF-1α under hypoxia in cultured neonatal rat cardiomyocytes. Some mechanisms such as ROS (reactive oxygen species) signal transduction system and oxidative stress may be involved in it.

Objective To compare the prognoses in pregnancy women receiving routine perineal shaving and non perineal shaving before vaginal delivery through meta analysis.Methods The randomized controlled trials or non-randomized controlled trials for comparing the prognoses in pregnancy women receiving routine perineal shaving and non perineal shaving before vaginal delivery were retrieved from databases,including Cochrane Library,PubMed,EMbase,SCI,Ovid,CBM,Wanfang,VIP and CNKI,till December 2015.The studies were selected according to the inclusion and exclusion criteria,and the data were extracted and evaluated by two reviewers independently.The Meta-analysis was conducted via RevMan 5.2.6 software.Results A total of 6 studies (including three articles in English and three ones in Chinese) including 1 924 delivery women were included,1 083 cases in the perineal shaving group and 841 cases in the non perineal shaving group.No statistically significant difference was found in the incidence rate of fever after delivery between the perineal shaving group and the non perineal shaving group[Z=0.57,P=0.57,RR=1.14,95 ％ CI(0.73,1.76)],and there was no statistically significant difference in post-operative wound infection between the two groups [Z=0.43,P=0.66,RR=1.11,95％CI(0.69,1.78)].Conclusion Perineal shaving may be not an essential nursing intervention before vaginal delivery.

Objective To investigate the relationship between ST resolution and early prognosis of the patients with acute ST-elevation myocardial infarction (STEMI) receiving percutaneous coronary intervention (PCI).Methods A total of 80 consecutive patients with STEMI underwent primary PCI within 12 hours.ST segment elevation amplitude sum was measured and compared before PCI and 1 hour after PCI,and the percentage of declining was calculated.According to thrombolysis in myocardial infarction (TIMI) grading after PCI,the infarction related artery blood flow was recorded and compared.Ten of them who had experienced clear ST resolution (≥30％) before PCI were set aside.Among the other 70 patients,the ST resolution was calculated and the patients were divided into group A (41 cases,ΣSTE resolved ≥50％) and group B (29 cases,Σ STE resolved ＜ 50％).The left ventricular ejection fraction (LVEF),serious adverse cardiac events (MACE,including myocardial infarction,or revascularization,malignant arrhythmia,heart failure and death) in two groups during hospitalization was compared.Results The LVEF in postoperative 1 week in group A was higher than that in group B [(51.90 ± 5.06)％ vs.(46.87 ± 4.01)％,P ＜ 0.05].The incidence of in-hospital MACE during hospitalization in group A was lower than that in group B [7.3％ (3/41) vs.24.1％ (7/29)] (P ＜ 0.05).Conclusions Degree of ST resolution early after recanalization in acute STEMI patients receiving emergency PCI degree can better reflect the level of myocardial tissue perfusion and indirectly predict cardiac systolic function and in-hospital MACE.It can be used as evaluation index of early prognosis.

Objective To investigate the clinical value of remote electronic fetal monitoring network in intrahepatic cholestasis of pregnancy(ICP). Methods Non-stress test (NST) was carried on in 54 cases of ICP by remote electronic fetal monitoring network(study group). Fifty-four cases of ICP served as control group were monitored by fetal movement counting daily and regular NST check-up in hospital. Abnormal NST and perinatal outcome were compared between the study group and control group. Results The incidence of abnormal NST was significantly higher in the study group than that in the control group ( 36.1% vs 27.2%, P 0.05). Conclusion Remote fetal monitoring network can be used to improve perinatal outcome of ICP. It is a new method of FHR self-monitoring for ICP case.