床旁血气分析仪与血液生化分析仪相同检测项目的比较分析

目的探讨床旁快速血气分析仪与检验科大型血液生化分析仪在不同类别的样本中血钾、钠、血糖、红细胞比容以及血红蛋白5个相同检测项目的可比性。方法分别用GEMPremier3000血气分析仪与Bayer2400型全自动生化分析仪及雅培CD-1800全血细胞分析仪对123例体外循环术后入住ICU患者的动脉全血和静脉血清样本进行血钾、血钠、血糖、红细胞比容以及血红蛋白的检测,对检测结果进行相关分析和配对t检验。结果两类仪器测定血钾、血钠、血糖、红细胞比容和血红蛋白的结果均有显著相关性（r=0．795,r=0．200,r=0．324,r=0．540,r=0．708。全部P〈0．05）,两类仪器测定血钾、血糖、血红蛋白的结果无统计学意义（P〉0．05）。GEMPremier3000血气分析仪测定的红细胞比容结果显著高于雅培CD-1800全血细胞分析仪（P〈0．05）,血钠的结果显著低于Bayer2400型全自动生化分析仪（P〈0．05）。结论GEMPremier3000血气分析仪能替代传统生化分析仪测定血钾、血糖以及血红蛋白,但血纳和红细胞比容的结果有差异。     

载脂蛋白E基因多态性与冠心病相关性的实验与临床研究

目的探讨载脂蛋白E基因多态性对血脂、脂蛋白的影响及与冠心病(CHD)患者发病程度的关系．方法采用聚合酶链式反应一限制性片段长度多态性方法(PCR-RFLP),分析93例冠心病患者(CHD组)和113例无冠心病的健康对照者(对照组)apoE基因型及空腹血清甘油三酯(TG)、总胆固醇(TC)、高密度脂蛋白(HDL-C)和低密度脂蛋白(LDL-C)浓度．结果与健康对照者比较,CHD患者apoE4等住基因频率较高。分别为17．2％。7．5％,P＜0．01;在CHD患者及健康对照者不同的apoE基因型之间,TC,LDL-C,HDL-C浓度差异有显著性。并按ε2／2 ε3／2＜ε3／3＜ε4／3 ε4／4的顺序递增．结论ApoE基因多态性是影响血清TC及LDL-C水平的重要遗传因素之一．ApoE基因多态性与冠心病的发病密切相关。ε4等住基因可能是吉林地区CHD发病的危险因素。     

Hematocrit and hemoglobin concentration in four chromosomal species and some isolated populations of actively speciating subterranean mole rats in Israel

Summary Hematocrit (HCT) and hemoglobin (Hb) concentration were measured in four chromosomal species and some peripherally semi-isolated and isolated populations of the mole rat superspeciesSpalax ehrenbergi in Israel. HCT was 52.0, 51.4, 50.9, and 47.8%, and Hb was 16.0, 16.6, 16.3, and 14.7 g/100 ml for 2n=52, 58, 54, and 60, respectively. The species 2n=60, which lives in arid habitats, had lower HCT and Hb than the other three species. HCT decreased as aridity increased between the species and within the species 2n=60. Changes in HCT probably reflect clinal changes in both soil permeability to gases and ambient temperature.     

Long-term depressor effects of catecholamine neuronal grafts in the third ventricle of the brain in normotensive rats

Summary Neuronal tissue containing A-6 group noradrenalin (NA) neurons of the locus ceruleus, or A-10 group dopamine (DA) neurons of the substantia nigra, was grafted into the third ventricle at the level of the preoptic-anterior hypothalamic region, in normotensive male rats. A significant and long-lasting depressor effect was shown in rats with either graft. In rats with an NA neuron-rich graft, plasma concentrations of arginine-vasopressin (AVP), plasma renin activity (PRA), and corticosterone (CS) decreased significantly, whereas in rats with a DA neuron-rich graft, AVP and PRA concentrations also decreased significantly but CS showed no significant change. Neither NA nor adrenalin in plasma changed significantly in rats with either graft.     

聚乙烯醇缩丁醛—接枝丙烯酰胺的合成及生物医学性能

聚乙烯醇缩丁醛—接枝—丙烯酰胺共聚物已采用硝酸铈铵/硝酸引发体系于水悬浮液中在30℃合成,接枝长度和每个聚乙烯醇缩丁醛分子上支链的数几分别确定为(?)n3-6×10~4和0.1-0.3。测定了反应时间和铈离子浓度对接枝率,接枝长度和支链数目的影响。亦讨论了其他反应参数的影响,并研究了此聚合物的吸水率,对牛血清白蛋白的粘附及血液相容悱。结果表明此共聚物当接枝率为15—25%而平均接枝链长度((?)n)大于4×10~4其血液相容性良好。     

MEASUREMENTS OF THE BLOOD CAPILLARY PRESSURE AND ARTERIAL ELASTICITY

Describe some new fully automatic instruments for the measurements of the blood capillary pressure (Pcap) and arterial elastic properties in human fingers using a photoelectric plethysmographic technique. With these instruments, the value of Pcap was in good agreement with those reported by other investigators, the arterial elastic properties in human fingers have been successfully measured. The measurements of Peap and arterial elasticity are now required in clinics because they provide useful and important information for evaluating vascular haemodynamics.     

无氧阈的理论基础及其应用

本文论述了无氧阈理论的生理生化基础,并对无氧阈的测试方法,影响因素以及应用等方面作了较为详细的介绍.     

草鱼(Ctenopharyngodon idellus)和青鱼(Mylopharyngodon piceus)血压及心率的初步研究

本文应用鱼类背大动脉导管插管术和心电图描记方法,同时记录处于自由游动状态下的草鱼(Ctenopharyngondon idellus)和青鱼(Mylopharyngodonpiceus)的背大动脉血压和心率。结果表明,鱼类血压和心率的变化与其呼吸机能状态密切相关。缺氧会导致血压升高,脉压加大、心率减慢。改进后的内穿刺插管法可减少手术中的失血和对背大动脉的损伤程度,有助于提高测量数据的准确性及鱼类心血管慢性实验成功率     

国产抗HIV－1试剂盒对献血员血清检测

国产抗ＨＩＶ－１试剂盒对献血员血清检测陈长荣，戴永强（厦门市中心血站）（厦门新创科技有限公司）艾滋病＋（ＡＩＤＳ）是一种正在全世界广泛传播的疾病，其病毒（ＨＩＶ）是一种单链ＲＮＡ逆转录病毒．ＨＩＶ感染后２个月左右在血清中可检测出抗ＨＩＶ阳性，从感染到...     

血液灌流串联血液透析抢救急性重度有机磷农药中毒疗效观察

目的观察用血液灌流串联血液透析抢救急性重度有机磷农药中毒的临床疗效.方法26例急性重度有机磷农药中毒,16例给予血液灌流串联血液透析治疗,同时100例对照组给予血液透析治疗,通过观察其临床变化、治愈率和副作用等来判定疗效.结果治疗组治愈率93.75%,显著优于对照组.结论血液灌流串联血液透析能有效清除体内有机磷,治疗严重并发症.用于急性重度有机磷中毒疗效显著.