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.     

蝶腭,筛前神经及鼻甲联合手术治疗常年性变应性鼻炎

在鼻内窥镜下为４０例行蝶腭、筛前神经及鼻甲联合手术治疗常年性变应性鼻炎。结果：术后１月全部患者症状消失,显效１００％;术后１年显效３３例,占８２．５％;有效６例,占１５％,有效率为９７．５％。提示该方法可广泛阻滞鼻腔副交感神经来源,降低鼻粘膜感觉灵敏部位敏感性以及感觉—副交感神经反射,破坏喷嚏反射弧的传入通路,使鼻粘膜对外界刺激敏感性下降,血管扩张减轻,腺体分泌减少,对常年性变应性鼻炎有明显疗效。     

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。     

小儿耳蜗植入后电诱发复合动作电位的阈值及其临床应用

目的：研究应用神经反应遥测（neural response telemetry,NRT)技术，测试电诱发复合动作电位（electrically-evoked compound action potential,ECAP)阈值以指导小儿人工耳蜗映射调图的策略与时机。方法：应用NRT3．0软件对辐值增长函数进行线性拟合，确定ECAP阈值。比较6例儿童植入者在术后1、2、3个月ECAP阈值的变化，同时比较了7例儿童术中、术后ECAP阈值的差异。结果：ECAP幅值增长函数在接近阈值或进入饱和时不再呈线性。术后ECAP阈值保持稳定。各导电极的术中ECAP阈值比术后阈值平均高约15CL，二者有显著性相关（R2＝0．9154）。结论：应选取幅值增长函数的直线段部分进行拟合以确定ECAP阈值。术后应用ECAP阈值指导小儿映射调图时，测试一次ECAP阈值即可。术中ECAP阈值可用作开机时映射图的C值。     

汉族女性峰值骨密度和维生素D受体基因多态性及环境因素的相关性研究

目的　研究汉族女性峰值骨密度 (peakbonemineraldensity ,PBMD)与某些环境及遗传因素的关系。方法　选择健康的志愿者 1 5 9人 ,①通过饮食回顾法计算每日钙及蛋白入量 ;②通过 7d运动评估法计算运动强度 ;③使用DEXA骨密度仪 (HologicQDR 4 5 0 0 )测量志愿者腰椎和髋部骨密度 (BMD) ;④应用PCR -限制性片段长度多态性对维生素D受体 (VDR)基因进行多态性分析。结果　①腰椎BMD结果参照日本人标准 ,低骨量或骨质疏松共有 35人 (2 2 % ) ,正常骨量者为 1 2 4人 (78% )。两组间体重及体重指数 (BMI)间有显著差异 ;②腰椎及髋部股骨颈BMD与体重呈正相关 ,髋部其余位点BMD值和BMI呈正相关 ;③VDR基因BsmI酶切多态性组间BMD无显著性差异。结论　本研究显示 :体重及或BMI是汉族女性PBMD重要保护因素之一。汉族女性PBMD和当前营养状态、运动强度、VDRBsmI酶切位点基因多态性未见有相关性