人载脂蛋白E基因型测定方法的建立

目的：建立一种准确、简便和经济的适用于大范围测定载脂蛋白Ｅ基因型的方法。方法：自中血中采用ＴＫＭ法提取人基因组ＤＮＡ,ＰＣＲ－ＲＦＬＰ确定载脂蛋白Ｅ的基因型,硝酸银染色聚丙烯酰胺凝胶,若银染效果不佳可用硝酸脱色后重染。结果：ＴＫＭ法获得ＤＮＡ在产量和质量上均能满足ＰＣＲ需求;电泳凝胶经银染可得清晰的ＤＮＡ特异带,据此能准确确定样品载脂蛋白Ｅ的基因基因型;用硝酸溶液脱色后的凝胶经重染仍可得到清晰的图     

子宫内膜异位症癌抗原(CA125)检测及其临床意义

目的：探讨子宫内膜异位症与ＣＡ１２５有无相关性、提高临床子宫内膜异位症诊断雍诊断最佳途径。方法：用放射免疫测定法（ＲＩＡ）检测７９例子宫内膜异位症、７０例子宫肌瘤、６４例子宫颈癌、８０名正常育龄女性为对照。结果：子宫内膜异位症、子宫肌瘤、子宫颈癌、正常对照组阳性率分别是７９．７５％、８．５７％、１７．１９％、０．００％。前者显著高于后三者（Ｐ〈０．０１）。结论：ＣＡ１２５检测为临床诊断子宫内膜异位     

Transcriptome analysis of Armillaria gallica 012 m in response to auxin

Gastrodia elata is an achlorophyllous and fully mycoheterotrophic orchid which obtains carbon and other nutrients from Armillaria species in its life cycle. Many researchers suggested that plant hormones, as signing molecules, play a central role in the plant–fungi interaction. In the process of Armillaria gallica 012 m cultivation, both exogenous indole-3-acetic acid (IAA) and indole-3-butyric acid (IBA) distinctly stimulated the growth of mycelia in solid media. The differential expression genes (DEGs) of A. gallica 012 m with IAA versus blank control (BK) and IBA versus BK were investigated. The results showed that more than 80% of DEGs of the IAA group were coincident with the DEGs of the IBA group, and more than half of upregulated DEGs and most of the downregulated DEGs of the IAA group coincided with those DEGs of the IBA group. Above research implied that A. gallica 012 m could perceive IAA and IBA, and possess similar responses and signaling pathways to IAA and IBA. The overlapping differential genes of the IAA group and IBA group were analyzed by GO term, and the results showed that several DEGs identified were related to biological processes including positive regulation of the biological process and biological process. The downregulated NmrA-like and FKBP_C genes might be benefit to the growth of mycelia. Those results can explain that exiguous IAA and IBA improved the growth of A. gallica to some extent. We speculate that IAA and IBA are signaling molecules, and regulate the expression of growth-related genes of A. gallica 012 m by the same signaling pathway.     

Simultaneous Construct Surface Microstructural and Internal Network-Like Conductive Pathways of Poly(l-lactic acid)/Carbon Nanomaterials Composite Foams

The poly(l -lactic acid) (PLLA)/carbon nanomaterials composite foams with hierarchical surface microstructural and internal conductive pathways are successfully prepared by a simple crystallization-assisted rapid phase separation (CARPS). The dimension and morphology of carbon nanomaterials can induce different crystallization forms to construct the hierarchical surface microstructure, and they are distributed on the phase interface of solvent and non-solvent to form conductive pathways. It is found that the heterogeneous nucleation of nanomaterials promotes a significant increase in crystallinity, and a stacked granular structure formed on the surface promotes the increase of the water contact angle to 148.7°. Foams with interconnecting pore structures contribute to the formation of 85.3% porosity and 12.33 g g⁻¹ oil absorption. Carbon nanomaterials are distributed on the pore walls of the porous foam, which converts the foam from an insulating material to a conducting polymer. Furthermore, the uniform distribution of nanomaterials significantly affects the thermal stability of the PLLA. In belief, the multifunctional biodegradable foam, prepared by a CARPS method, makes it promising for industrial production and has potential applications in electrical conductivity, oil-water separation, and many other fields.     

引导组织再生术屏障膜放置时间的研究

在 ３０ 只成年兔的下颌两切牙唇侧牙槽骨制备 １０ｍ ｍ ×５ｍ ｍ 的开窗骨缺损,其表面覆盖 Ｇｏｒｅ Ｔｅｘ 膜。该膜分别于术后 １、２、３、５ 周取出,以不放膜组为空白对照。所有动物５ 周处死,标本作组织学分析。结果表明,２ 周取膜组较空白对照组有更多的新骨形成,而 ３ 周或 ５ 周取膜组织的再生量无进一步增加。提示在引导兔开窗骨缺损的牙周再生中,屏障膜放置所需要的最适宜时间是 ２ 周。     

抗A1试剂血清的研制

目的 :ABO亚型在临床输血中经常造成错定血型及输血反应 ,因而研制抗A1试剂血清是解决ABO亚型鉴定的主要途径。方法 :采用血型血清学特异性抗原抗体吸收实验。结果 :经大量反复实验 ,研制出特异性强 ,效价符合要求的抗A1试剂血清。结论 :抗A1血清是鉴定A亚型的专用试剂血清 ,对临床鉴定ABO亚型及安全输血有实用意义。     

猪精液抑制素的制备及其放射免疫分析

本文报道以猪精液为原料制备的抑制素的生物活性、氨基酸组成、分子量以及抑制素的放射免疫分析。新鲜猪精液经乙醇沉淀、丙酮清洗和Sephadex G-100凝胶过滤,获得抑制素活性组分UⅡ。生物测定表明:所得抑制素单位重量的生物活性稍高于Chari氏牛精液抑制素纯品的活性;UⅡ含17种氨基酸,分子量为18,500道尔顿,用UⅡ免疫家兔,获得亲和为强(Ka=6.58×10~(10)L/M)、效价高的特异抗血清,终稀释度可达1:100,000;用双抗体法进行猪精液抑制素放射免疫分析,检测灵敏度为87.5微微克,经Logit转换,标准曲线的直线化较好。按Cerceo效点法综合评价,积分值达28,表明此法较优。     

血能达片对小鼠的急性毒性和抗栓疗效

目的：测定血能达片的急性毒性和验证其抗栓疗效及选药提供依据。方法：小白鼠一次Ig血能达26g/kg；五组动物分别给血能达（XND）3g/kg,溶栓胶种（RSC）1．25g/kg，复方丹参（CDDP）1．25g/kg，消栓通络（XSTL）2．5g/kg和NS Ig,qd 1次，连续7d。第7日药后1h,IV Collagen-Adr诱发血栓[1]，观察死亡数；用毛细血管法测凝血时间，扭体法测痛。结果：小白鼠口服最大耐受量为26g/kg，临床用量的866．7倍；4种药物除消栓通络外，均有明显的抗栓作用（P＜0．05－0．01）；还证中、高剂量血能达尚有延长凝血时间和镇痛作用（P＜0．05－0．01），其余3种药则没有。结论：血能达毒性小，具有溶栓胶囊，复方丹参等效的抗栓疗效，还能抗凝和镇痛。     

直电极与弯电极序列人工耳蜗植入深度的比较

目的测量比较Nucleus CI 24M直电极序列和CI24 Contour弯电极序列两种型号植入体的电极植入深度。方法对41例CI 24M和8例CI 24 Contour植入者,术后拍摄耳蜗位X线平片。应用图像处理技术,比照耳蜗螺旋模板,建立电极序列的极坐标图形,测量第22号电极与耳蜗开窗处的极坐标角度,两者之差代表了电极序列的植入深度。以t检验比较两种型号植入体的植入深度状况。结果 无内耳畸形、手术条件相当的情况下,CI 24 Contour植入体的平均插入角度为413°,CI 24M植入体的平均插入角度为316°,P=0.0001。结论CI 24 Contour植入体的植入深度明显深于CI 24M。前者更有利于医师进行植入。