太阳病"汗法"初探

仲景所著《伤寒论》冠古绝今,书中398条原文,太阳病篇所占178条,足以突出太阳病篇在六经辨证中的重要性.众所周知,太阳病的基本病机是感受风寒,营卫失调;其基本治则为辛温解表;“汗法”在治疗中占有极其重要的地位.用之正确则药到病除,用之不当则变证从生.仲景在太阳病篇中对“汗法”有很详细的描述,初探如下.     

早期干预对高危儿在婴儿早期发育的影响

目的：探讨早期干预对高危儿在婴儿早期发育的影响。方法：采用自行设计的一套早期干预方法通过指导家长对实验组实施，分别在3个月、6个月时进行格体生长和行为发育的评估，另设对照组进行比较。结果：实验组和对照组在体重、身长、头围方面均无统计学差异，但实验组的5个能区行为发育商均值都高于对照组，除3个月的语言能区外，其余均有统计学差异。结论：早期干预在婴儿早期就能促进高危儿的行为发育，但对促进高危儿的体格生长无明显效果。     

31例卵巢恶性畸胎瘤临床分析

本文报道了我院收治的卵巢恶性畸胎瘤３１例，随访中２例失访，随访率为９３．５３％。并讨论了卵巢恶性畸瘤的治疗方式为手术加联合化疗，对年轻的Ｉ期患者可行患侧单侧附件切除术，术后化疗极为重要。化疗方法采用ＶＡＣ或ＰＶＢ方案联合化疗，本文还 影响预后的重要因素为临床分期期和病理学特点．     

As2O3处理前后K562细胞基因表达变化的基因芯片检测

目的应用基因芯片研究三氧化二砷(As2O3)处理前后K562细胞基因表达的变化.方法提取As2O3处理前后K562细胞的总RNA,纯化为mRNA后再反转录为cDNA.cDNA经限制性内切酶Sau3AI切割后,cDNA片段分别用Cy3和Cy5标记,与自制的包含348个基因片段的胎盘库芯片杂交.结果杂交结果经扫描和软件分析,发现了11个差异表达的基因片段,其中有3个基因片段与细胞凋亡密切相关.结论我们构建的胎盘库基因芯片可以成功地用于研究药物作用前后基因表达的变化.     

地塞米松对布比卡因诱导小鼠神经元毒性的影响

Objective To investigate the effect of dexamethasone on the toxicity of bupivacaine in murine neurons.Methods Murine neuroblastoma cell line N2a was obtained from ATCC cell bank (USA). The cells were cultured in 10% fetal cow serum/MEM culture medium and divided into 4 groups voup I control (Con); group II bupivacaine ( Bup); group Ⅲ dexamethasone (Dex) and group IV Dex + Bup. The culture medium contained bupivacaine 900 μmol/L in group Bup and dexamethasone 1 μmol/L in group Dex respectively. In group Dex + Bup ( IV ) Bup was added to the culture medium with a final concentration of 900 μmol/L at 12 h after pretreatment with Dex 1 μmol/L. The cells were inoculated in 24 well plates (0.5 ml in each well, 24 wells in each group) and 10 cm culture dishes (7 ml in each dish, 4 dishes in each group). The release rate of LDH was calculated and the morphology of the cells and nucleus condensation (by Hoechst 3334224 fluorescent staining) was detected at 9 h of incubation in 24 well plates. The mitochondrial transmembrane potential (by JC-1 assay) and phosphorylation of Akt and ERKs (by Western blot) were measured at 5 h of incubation in 24 well plates and in culture dishes respectively. ResultsBupivacaine caused severe damage to the N2a cells as evidenced by increase in LDH release and nucleus condensation (apoptosis), dephosphorylation of Akt and ERKs, decrease in mitochondrial transmembrane potential and severe morphological changes. Dexamethasone pretreatment significantly attenuated bupivacaine-induced neurotoxicity. Conclusion Dexamethasone can protect N2a cells from bupivacaine-induced neurotoxicity through stabilization of mitochondrial transmembrane potential and inhibition of dephosphorylation of Akt and ERKs.     

IN VITRO ANALYSIS OF τ PHOSPHORYLATION SITES AND ITS BIOLOGICAL ACTIVITY

INTRODUCTIONThemicrotubule－associatedprotein蚲ishyperphos－phorylatedandglycosylatedinAlzheimerdisease（AD），andtheseabnormalmodificationsformedthebasisofprogressivelyretrogradeneurofibrillarydegenerationseeninADbrainandtherebythedementia（１，２）．ADab－normallyphosphorylated蚲notonlyismicrotubuleas－semblyincompetent，butalsoinhibitsassemblyanddis－assemblesthepreassembledmicrotubulesinvitro（３）．Inthetangle－bearingneuronsinADbrain，thenormalcytoskeletonisdisruptedandreplacedwi…     

Agilent 2100 Bioanalyzer在基因差异表达研究中的应用

目的观察Agilent 2100 Bioanalyzer 芯片分析系统(以下简称Bioanalyzer)在基因差异表达研究中的应用。方法应用限制性显示技术分别从正常和热休克处理后的酿酒酵母细胞中分离出cDNA片段,然后再用Bioanalyzer和传统的琼脂糖凝胶电泳技术对RD-PCR产物进行检测分析。结果Bioanalyzer能更快速、敏感地分离和显示差异表达的基因片段,并且通过对差异片段进行定量比较,发现了数个表达有明显差异的基因片段。结论Bioanalyzer在基因差异表达研究中具有重要的应用价值。     

后囊连续环形撕囊在儿童人工晶体植入术的应用

后发障是儿童白内障最常见的并发症，是导致术后视力下降的主要原因，故降低后发障的发生率对提高术后视力及减少弱视的发生非常重要，以往文献报道大多是术后行ND-YAG激光后囊切开术来治疗后发障。笔者近年对儿童白内障采用白内障摘除人工晶体植入联合后囊连续环形撕囊术预防人工晶体术后后囊混浊，效果肯定，报告如下。     

三尖杉酯碱诱导慢性髓系白血病K-562细胞凋亡的实验研究

目的阐明三尖杉酯碱（HT）作用于K562细胞的机制。方法应用细胞形态、DNA凝胶电泳和流式细胞仪等检测,观察HT对K562细胞株的作用方式,进一步用RT-PCR方法研究bcr/abl基因在转录水平的改变。结果0.01～100.00μg/ml浓度HT可诱导K562细胞凋亡,并呈时间和剂量依赖性。随着药物作用时间的延长,bcr/abl基因的转录下调。结论低浓度HT就可通过抑制bcr/abl基因的表达,诱导K562细胞凋亡。     

脑梗死老年患者康复治疗前后的脑血流动力学

目的　观察脑梗死老年患者康复治疗期的脑血流动力学变化。　方法　应用经颅多普勒超声仪检测30例脑梗死康复期老年患者治疗前后以及 2 0例老年健康对照组的双侧大脑中动脉 (MCA)血流参数 :收缩期血流速度 (Vs)、舒张期血流速度 (Vd)、平均流速 (Vm)、阻力指数 (RI)、搏动指数 (PI)。　结果　 (1)与对照组比较 ,脑梗死组 MCA流速 Vs、Vd、Vm显著降低 ,RI、PI显著增高 (P<0 .0 1) ;(2 )体疗组经海水浴体疗运动 4疗程后 MCA流速 Vs、Vd、Vm明显增高 (P<0 .0 1) ,RI、PI显著降低 (P<0 .0 1) ,而休养组患者则改变不明显 (P>0 .0 5 )。　结论　脑梗死老年患者恢复期脑循环及血管贮备功能尚差 ,海水浴体疗运动一定疗程后可改善患者心脑血氧供应和脑血流动力学状况。