目的:探讨H2受体阻滞剂联合多潘立酮对肝硬化患者门静脉系统血流量的影响．方法:以20名健康人作为正常对照．60例肝硬化患者随机分成3组,分别给予口服高舒达、口服多潘立酮以及联合用药,治疗前后采用多普勒超声测定门静脉(PVF)、脾静脉(...目的:探讨H2受体阻滞剂联合多潘立酮对肝硬化患者门静脉系统血流量的影响．方法:以20名健康人作为正常对照．60例肝硬化患者随机分成3组,分别给予口服高舒达、口服多潘立酮以及联合用药,治疗前后采用多普勒超声测定门静脉(PVF)、脾静脉(SVF)和肠系膜上静脉(SMVF)血流量(mL/min)．结果:治疗后,H2受体阻滞剂组的PVF显著高于治疗前(850．23±140．78 vs 695．22±221．44, P＜0．01),SVF和SMVF低于治疗前,但无显著差异．多潘立酮组PVF较治疗前有增高,无显著差异,而SVF和SMVF显著低于治疗前(SVF: 598．13±272．33 vs 816．40±279．61,P＜0．05: SMVF:504．23±188．54 vs 640．30±200．12．P＜0．05)．联合用药组则PVF显著高于治疗前(876．76±178．65 vs 705．34±200．15,P＜0．05),而SVF、SMVF显著低于治疗前(SVF:605．33±252．86 vs 798．33±280．45,P＜0．01:SMVF: 503．43±175．25 vs 650．19±190．62,P＜0．01)．结论:H2受体阻滞剂组及多潘立酮都具有改善门静脉系统血流的作用,联合应用作用更为明显．展开更多
We present a study on n-type ternary InGaN layers grown by atmospheric pressure metalorganic vapour phase epitaxy （MOVPE） on GaN template/（0001） sapphire substrate. An investigation of the different growth conditi...We present a study on n-type ternary InGaN layers grown by atmospheric pressure metalorganic vapour phase epitaxy （MOVPE） on GaN template/（0001） sapphire substrate. An investigation of the different growth conditions on n-type InxGa1-xN （x = 0.06 -- 0.135） alloys was done for a series of five samples. The structural, electrical and optical properties were characterized by high resolution x-ray diffraction （HRXRD）, Hall effect and photolumineseence （PL）. Experimental results showed that different growth conditions, namely substrate rotation （SR） and change of total H2 flow （THF）, strongly affect the properties of InGaN layers. This case can be clearly observed from the analytical results. When the SR speed decreased, the HRXRD scan peak of the samples shifted along a higher angle. Therefore, increasing the SR speed changed important structural properties of InGaN alloys such as peak broadening, values of strain, lattice parameters and defects including tilt, twist and dislocation density. From PL results it is observed that the growth conditions can be changed to control the emission wavelength and it is possible to shift the emission wavelength towards the green. Hall effect measurement has shown that the resistivity of the samples changes dramatically when THF changes.展开更多
文摘目的:探讨H2受体阻滞剂联合多潘立酮对肝硬化患者门静脉系统血流量的影响．方法:以20名健康人作为正常对照．60例肝硬化患者随机分成3组,分别给予口服高舒达、口服多潘立酮以及联合用药,治疗前后采用多普勒超声测定门静脉(PVF)、脾静脉(SVF)和肠系膜上静脉(SMVF)血流量(mL/min)．结果:治疗后,H2受体阻滞剂组的PVF显著高于治疗前(850．23±140．78 vs 695．22±221．44, P＜0．01),SVF和SMVF低于治疗前,但无显著差异．多潘立酮组PVF较治疗前有增高,无显著差异,而SVF和SMVF显著低于治疗前(SVF: 598．13±272．33 vs 816．40±279．61,P＜0．05: SMVF:504．23±188．54 vs 640．30±200．12．P＜0．05)．联合用药组则PVF显著高于治疗前(876．76±178．65 vs 705．34±200．15,P＜0．05),而SVF、SMVF显著低于治疗前(SVF:605．33±252．86 vs 798．33±280．45,P＜0．01:SMVF: 503．43±175．25 vs 650．19±190．62,P＜0．01)．结论:H2受体阻滞剂组及多潘立酮都具有改善门静脉系统血流的作用,联合应用作用更为明显．
基金supported by the State Planning Organization of Turkey (Grant No 2001K120590)
文摘We present a study on n-type ternary InGaN layers grown by atmospheric pressure metalorganic vapour phase epitaxy （MOVPE） on GaN template/（0001） sapphire substrate. An investigation of the different growth conditions on n-type InxGa1-xN （x = 0.06 -- 0.135） alloys was done for a series of five samples. The structural, electrical and optical properties were characterized by high resolution x-ray diffraction （HRXRD）, Hall effect and photolumineseence （PL）. Experimental results showed that different growth conditions, namely substrate rotation （SR） and change of total H2 flow （THF）, strongly affect the properties of InGaN layers. This case can be clearly observed from the analytical results. When the SR speed decreased, the HRXRD scan peak of the samples shifted along a higher angle. Therefore, increasing the SR speed changed important structural properties of InGaN alloys such as peak broadening, values of strain, lattice parameters and defects including tilt, twist and dislocation density. From PL results it is observed that the growth conditions can be changed to control the emission wavelength and it is possible to shift the emission wavelength towards the green. Hall effect measurement has shown that the resistivity of the samples changes dramatically when THF changes.
