EXPRESSION OF TGF－β_1，PDGF AND IGF－1 mRNA IN LUNG OF BLEOMYCIN－A_5－INDUCED PULMONARY FIBROSIS IN RATS

ＥＸＰＲＥＳＳＩＯＮＯＦＴＧＦ－β１，ＰＤＧＦＡＮＤＩＧＦ－１ｍＲＮＡＩＮＬＵＮＧＯＦＢＬＥＯＭＹＣＩＮ－Ａ５－ＩＮＤＵＣＥＤＰＵＬＭＯＮＡＲＹＦＩＢＲＯＳＩＳＩＮＲＡＴＳＬｉＨａｉｃｈａｏ李海潮，ＨｅＢｉｎｇ何冰，ＱｕｅＣｈｅｎｇｌｉ阙呈立ａｎｄＷ...     

EFFECTS OF MTX AND BN_52021 ON PAF－INDUCED CHEMOTAXIS OF PMNs AND I

ＥＦＦＥＣＴＳＯＦＭＴＸＡＮＤＢＮ５２０２１ＯＮＰＡＦ－ＩＮＤＵＣＥＤＣＨＥＭＯＴＡＸＩＳＯＦＰＭＮｓＡＮＤＩＮＴＲＡＥＰＩＤＥＲＭＡＬＡＣＣＵＭＵＬＡＴＩＯＮＯＦＩＮＦＬＡＭＭＡＴＯＲＹＣＥＬＬＳＩＮＧＵＩＮＥＡＰＩＧＳＬｉｕＢａｏｊｕｎ刘宝军，Ｚ...     

INCREASED EXPRESSION OF PDGF AND C－MYC GENES IN LUNGS AND PULMONARY ARTERIES OF PULMONARY HYPERTENSIVE RATS INDUCED BY HYPOXI

ＩＮＣＲＥＡＳＥＤＥＸＰＲＥＳＳＩＯＮＯＦＰＤＧＦＡＮＤＣ－ＭＹＣＧＥＮＥＳＩＮＬＵＮＧＳＡＮＤＰＵＬＭＯＮＡＲＹＡＲＴＥＲＩＥＳＯＦＰＵＬＭＯＮＡＲＹＨＹＰＥＲＴＥＮＳＩＶＥＲＡＴＳＩＮＤＵＣＥＤＢＹＨＹＰＯＸＩＡ￥ＣａｉＹｉｎｇｎｉａｎ；（蔡英年...     

EFFECT OF 764－3 ON AGGREGATION AND CALCIUM MOVEMENTS IN AEQUORIN－LOADED HUMAN PLATELETS

ＥＦＦＥＣＴＯＦ７６４－３ＯＮＡＧＧＲＥＧＡＴＩＯＮＡＮＤＣＡＬＣＩＵＭＭＯＶＥＭＥＮＴＳＩＮＡＥＱＵＯＲＩＮ－ＬＯＡＤＥＤＨＵＭＡＮＰＬＡＴＥＬＥＴＳＷｕＨｕａｉｚｈｕ武怀珠；ＬｉＪｉａｚｅｎｇ李家增；ＰｅｎｇＬｉｎ彭林；ＴｅｎｇＢｉｎ滕彬ａｎｄＺ...     

EFFECTS OF INTERLEUKIN－4 ON GRANULOCYTE－MACROPHAGE－COLONY FORMATION FROM MURINE BONE MARROW CELLS AND HEMATOPOIETIC RECONSTIT

ＥＦＦＥＣＴＳＯＦＩＮＴＥＲＬＥＵＫＩＮ－４ＯＮＧＲＡＮＵＬＯＣＹＴＥ－ＭＡＣＲＯＰＨＡＧＥ－ＣＯＬＯＮＹＦＯＲＭＡＴＩＯＮＦＲＯＭＭＵＲＩＮＥＢＯＮＥＭＡＲＲＯＷＣＥＬＬＳＡＮＤＨＥＭＡＴＯＰＯＩＥＴＩＣＲＥＣＯＮＳＴＩＴＵＴＩＯＮＦＯＬＬＯＷＩＮ...     

IMPLANTATION OF AUTOLOGOUS SKIN FIBROBLAST GENETICALLY MODIFIED TO SECRETE CLOTTING FACTOR IX PARTIALLY CORRECTS THE HEMORRHA

ＩＭＰＬＡＮＴＡＴＩＯＮＯＦＡＵＴＯＬＯＧＯＵＳＳＫＩＮＦＩＢＲＯＢＬＡＳＴＧＥＮＥＴＩＣＡＬＬＹＭＯＤＩＦＩＥＤＴＯＳＥＣＲＥＴＥＣＬＯＴＴＩＮＧＦＡＣＴＯＲＩＸＰＡＲＴＩＡＬＬＹＣＯＲＲＥＣＴＳＴＨＥＨＥＭＯＲＲＨＡＧＩＣＴＥＮＤＥＮＣＩＥＳＩＮ...     

THE EXPRESSION OF C－erbB－1 AND C－erbB－2ONCOGENES IN BASAL CELL CARCINOMA ANDSQUAMOUS CELL CARCINOMA OF SKIN

ＴＨＥＥＸＰＲＥＳＳＩＯＮＯＦＣ－ｅｒｂＢ－１ＡＮＤＣ－ｅｒｂＢ－２ＯＮＣＯＧＥＮＥＳＩＮＢＡＳＡＬＣＥＬＬＣＡＲＣＩＮＯＭＡＡＮＤＳＱＵＡＭＯＵＳＣＥＬＬＣＡＲＣＩＮＯＭＡＯＦＳＫＩＮＬｉｕＢａｏｊｕｎ；（刘宝军），ＺｈａｎｇＨａｉｔａｏ；（张海涛...     

PHA RMA COKINETICS OF CUPRIC－BIS（SALICYLALDEHYDE－2－FURA NTHIOCA RBOXY－HYDRAZONATE） DICHLORIDE（CSFTCH） IN RABBITS

ＰＨＡＲＭＡＣＯＫＩＮＥＴＩＣＳＯＦＣＵＰＲＩＣ－ＢＩＳ（ＳＡＬＩＣＹＬＡＬＤＥＨＹＤＥ－２－ＦＵＲＡＮＴＨＩＯＣＡＲＢＯＸＹ－ＨＹＤＲＡＺＯＮＡＴＥ）ＤＩＣＨＬＯＲＩＤＥ（ＣＳＦＴＣＨ）ＩＮＲＡＢＢＩＴＳ￥ＧａｏＹｕｎｓｈｅｎｇ；ＺｈｕＹｕｙｕｎ（...     

ANALYSIS OF THE N－GLYCOSYLATION OF THE SERUM GLYCOPROTEINS DEFINED BY CON A，PHA－E，RCA1 AND WGA IN CHINESE PATIENTS WITH GASTR

ＡＮＡＬＹＳＩＳＯＦＴＨＥＮ－ＧＬＹＣＯＳＹＬＡＴＩＯＮＯＦＴＨＥＳＥＲＵＭＧＬＹＣＯＰＲＯＴＥＩＮＳＤＥＦＩＮＥＤＢＹＣＯＮＡ，ＰＨＡ－Ｅ，ＲＣＡ１ＡＮＤＷＧＡＩＮＣＨＩＮＥＳＥＰＡＴＩＥＮＴＳＷＩＴＨＧＡＳＴＲＯＩＮＴＥＳＴＩＮＡＬＤＩＳＥＡＳＥ...     

EFFECT OF CAPTOPRIL ON RENAL HEMODYNAMICS AND RENAL PROSTAGLANDINS IN EARLY TYPE Ⅱ DIABETIC PATIENTS WITH NORMO－OR MICROALBUM

ＥＦＦＥＣＴＯＦＣＡＰＴＯＰＲＩＬＯＮＲＥＮＡＬＨＥＭＯＤＹＮＡＭＩＣＳＡＮＤＲＥＮＡＬＰＲＯＳＴＡＧＬＡＮＤＩＮＳＩＮＥＡＲＬＹＴＹＰＥⅡＤＩＡＢＥＴＩＣＰＡＴＩＥＮＴＳＷＩＴＨＮＯＲＭＯ－ＯＲＭＩＣＲＯＡＬＢＵＭＩＮＵＲＩＡ￥ＸｉａｏＸｉｎｈｕａ...     

RAPID ALTERATIONS IN PROTEIN KINASE C ACTIVITY AND INTRACELLULAR DISTRIBUTION DURING PHORBOL ESTER-INDUCED HL-60 CELL MICROPHAGE-LIKE DIFFERENTIATION

Alterations of protein kinase c activity were studied in the human leukemic cell line, HL-60, during induction of macropahge-like differentiation by tetradecenoyl phorbol 13-acetate (TPA). TPA added to intact HL-60 cells caused a concentration-dependent decrease in the total detergent-solubilized protein kinase C activity within an hour. This decrease in protein kinase c acticity in extracts of the cells did not appear to be due to an inhibitor of the kinase induced by TPA. DEAE-cellulose chromatography showed that the total decrease was caused by a decrease in the level of protein kinase C activity in the cytosol, since a higher peak of activity eluted at NaCl concentration greater than 0.125 M was found in the particulate preparation. Trifluoperazine, an inhibitor of protein kinase C activity in cell extracts, was however found to raise the protein kinase C activity when added to intact HL-60 cells. Nevertheless, trifluoperazine, when added in combination with TPA, did not overcome the TPA-induced decrease in protein kinase C activity.     

非分型流感嗜血杆菌Haps蛋白的分离纯化

目的优化非分型流感嗜血杆菌Haps蛋白质片段的分离纯化方法。方法采用盐析、透析脱盐、超滤浓缩、弱阳离子交换柱Hitrap CM Sepharose Fast Flow层析纯化HapS蛋白,优化Hap。蛋白质片段的洗脱条件,包括pH值和离子强度,测定各洗脱液样品在280nm波长处的光吸收值（D280）,用折线图显示,SDS-PAGE电泳检测分布图中处于峰值的样品,观察目的蛋白条带的出现。结果弱阳离子交换柱Hitrap CM Sepharose Fast Flow层析纯化HapS蛋白,缓冲液l洗脱液的D280分布为基线,缓冲液2洗脱液的D280分布折线图中有峰值出现,但峰有拖尾,SDS-PAGE电泳检测该洗脱峰主要为低分子量的蛋白条带;五种不同离子强度的缓冲液3洗脱液在100mmol／L NaCl离子强度时,D280的分布折线图显示有较高洗脱峰出现,SDS-PAGE电泳检测该洗脱峰有较明显的110000D的目的条带,其余离子强度下均未见明显洗脱峰出现。结论Sepharose CM FF层析柱分离纯化Haps蛋白质片段时,不同pH值的缓冲液对目的蛋白的洗脱没有明显影响,而主要影响杂蛋白的洗脱;100mmol／L NaCl离子强度的缓冲液3洗脱液获得较好的洗脱效果。     

INHIBITION OF MELATONIN BIOSYNTHESIS ACTIVATES PROTEIN KINASE A AND INDUCES ALZHEIMER-LIKE TAU HYPERPHOSPHORYLATION IN RATS

HYPERPHOSPHORYLATED microtubule-associ-atedproteintauisa major component ofneurofi-brillartyangle,sone ofthetwo hallmarksinAlzh-eimer'sdisease(AD )brain.1,2 Imbalancedregulatioinnproteinkinasesand proteinphosphatasesisa recognizedmechanismfortauhyperphosphorylati,onhowever,theupstreamfactorsleadingto deregulationof the phosphorylationsystem arestilnlotunderstood.Recent studiesshowed thatserum and cerebrospinalfluidlevelsofmelatonininAD patientdsecreased,and cog-nitionimprovement in th…     

食盐及钙对大鼠血压、血浆钙调素和红细胞膜ATP酶活性的影响

观察高、低钠和高、低钙摄入对大鼠血压、血浆钙调素(CaM)和红细胞膜ATP酶活性的影响。结果表明,高钠摄入8周可使大鼠血压显著升高,血清钠和24h尿钠明显高于对照组(P<0.01),血浆CaM水平亦明显升高。高钙摄入能降低血压,24h尿钙和血浆CaM水平明显升高(P<0.05),红细胞膜钙泵活性也提高;而低钙摄入则血压升高,24h尿钙降低(P<0.01)。     

草酸钙的形成机理及影响因素

目的 :探讨草酸钙结石的形成机理和影响因素。方法 :根据微溶电解质动力学原理 ,利用草酸与氯化钙作用形成草酸钙的性质 ,加入其它尿液中常见组分 ,测定草酸钙诱导期与过饱和溶液浓度的关系 ,并分析结石的显微结构。结果 :草酸钙的诱导期与溶液过饱和浓度呈反比关系 ,且不同干扰因素对草酸钙的过饱和比影响也不同。结论 :钙和草酸是草酸钙形成的必要条件 ;溶液的过饱和是草酸钙成核的基础 ;基质对草酸钙起胶结作用 ;氯化钠、氯化铵、氯化镁能促进草酸钙的形成 ,而氯化铁、尿素、甘氨酸能抑制草酸钙的沉淀。     

猪眼晶体钙结合蛋白的分离、纯化及其性质的研究

用疏水性苯基琼脂糖、Sephacryl S—200和DEAE纤维素柱层析从猪眼晶体中提纯了五种钙结合蛋白(CaBP)。DEAE纤维素柱采用了两种不同梯度的洗脱体系。纯化的CaBP的分子量子别为11,000、12,000、18,000、72,000和87,000,故分别称之为CaBP_(11)、CaBP_(12)、CaM、CaBP_(72)和CaBP_(87)。在SDS—PAGE中,除CaBP_(72)显示出三条不同区带外,其他均为单一区带。晶体CaM对环核苷酸磷酸二酯酶(PDE)的刺激作用与牛脑和猪脑CaM相同。CaBP_(11);CaBP_(12)对CaBP_(72)抗体的交叉反应率小于0.1％,但CaBP_(11)和CaBP_(12)的混合物与CaBP_(72)抗体的交叉反应率明显增加。晶体CaM可与兔抗猪脑CaM抗体1:1结合。     

脑脉舒宁对大鼠主动脉条收缩的影响

目的：探讨脑脉舒宁降压作用的机理。方法：采用大鼠胸主动脉条测定脑脉舒宁对去甲肾上腺素（ＮＥ）、ＣａＣｌ２的量效曲线以及对单剂量氯化钾所致收缩的影响。结果：脑脉舒宁能使ＮＥ、ＣａＣｌ２的量效曲线右移,最大反应压低,呈非竞争性拮抗;同时也可抑制高钾去极化引起的血管条收缩。结论：脑脉舒宁松弛血管平滑肌的作用与拮抗Ｃａ２＋有关。     

用荧光染料fura-2法测定心室肌细胞内游离钙离子浓度

用fura-2荧光染料测定了静息时的酶解分离心室肌细胞内游离Ca~(2+)浓度,40mMKCI和5mM咖啡因都能使心室肌细胞内游离Ca~(2+)浓度增加,但KCI增加游离Ca~(2+)浓度需要细胞外液中存在Ca~(2+),而咖啡因则否,提示KCl增加细胞内游离Ca~(2+)浓度可能是通过细胞外Ca~(2+)内流,咖啡因则使细胞内贮存Ca~(2+)释放。     

血小板54kD钙结合蛋白诱导嗜铬颗粒聚集的特性研究

猪血小板分子量为9.0×10~(-23)kg钙结合蛋白(简称54kD钙结合蛋白)具有诱导猪肾上腺髓质嗜铬颗粒聚集的活性。嗜铬颗粒聚集与蛋白浓度呈正相关。溶液中游离钙浓度在10~(-6)～10~(-3)mol/L范围内,该蛋白的活性与游离钙浓度成正比,显示该蛋白活性呈显著钙依赖性。镁离子对之有拮抗作用,而钡离子则呈正协同效应,但镁、钡离子并不引起54kD钙结合蛋白(以下简称54kD蛋白)诱导嗜铬颗粒聚集,因此该蛋白诱导嗜铬颗粒聚集的活性是钙特异性的。以上性质提示54kD蛋白与Annexin家族钙结合蛋白的性质非常相似,它可能作为血小板胞内的一种钙受体,介导血小板颗粒之间的相互融合以及颗粒与胞膜的相互作用,在血小板分泌时起重要作用。