Selective Absorption of Photonic Crystal with Graphene

Plasmonics - Selective absorption of photonic crystal with graphene is studied. The Photonic Crystal at THz regime with permittivity 4.2 is designed and validated with rigorous coupled-wave...     

Prediction and validation of cross-protective candidate antigen of Hyalomma asiaticum cathepsin L between H. asiaticum and H. anatolicum

Hyalomma asiaticum and H. anatolicum are tick species in Eurasia and Africa with major medical and veterinary significance. Beside their direct pathogenic effects, H. asiaticum and H. anatolicum are vectors of important diseases of livestock and in some instances of zoonoses. In search of ways to address the increasing incidence of global acaricide resistance, tick control through vaccination is regarded as a sustainable alternative approach. Cathepsin L-like cysteine protease (CPL) is a potent hemoglobinase, and plays important roles in the digestion of blood acquired from a host. CPL from H. anatolicum (HanCPL) with high similarity (>?90%) for H. asiaticum CPL (HasCPL) were aligned by in silico analysis. After further in vitro validation, the anti-HasCPL sera have cross-reactivity between the different total native protein of life stages and tissues for H. asiaticum and H. anatolicum. Furthermore, we further confirmed that recombinant HasCPL (rHasCPL) immunized rabbits were partially cross-protected (54.8%) by H. anatolicum infestation.

     

Tissue Plasminogen Activator Causes Brain Microvascular Endothelial Cell Injury After Oxygen Glucose Deprivation by Inhibiting Sonic Hedgehog Signaling

Neurochemical Research - The thrombolytic activity of tissue plasminogen activator (tPA) has undisputed benefits. However, the documented neurotoxicity of tPA raises important issues. Currently,...     

武汉亮斑扁角水虻幼虫肠道微生物对其成虫产卵行为的影响

研究武汉亮斑扁角水虻幼虫肠道微生物对武汉亮斑水虻成虫产卵行为的影响。首先使用LB(Luria-Bertani)培养基对武汉亮斑水虻幼虫肠道微生物进行分离纯培养,筛选得到23株肠道微生物。以灭菌的LB液体培养基为阴性对照,使用已证实引诱产卵效果好的来自武汉亮斑水虻卵表的属于戈登氏菌属的细菌(Gordonia sihwensis)FE06为阳性对照,利用筛选到的武汉亮斑水虻幼虫肠道微生物摇瓶发酵液对武汉亮斑水虻成虫进行产卵行为实验。发现有5株武汉亮斑水虻幼虫肠道微生物(BSFLG01、BSFLG03、BSFLG04、BSFLG05、BSFLG06)对武汉亮斑水虻产卵有显著的积极促进作用,其中3株(BSFLG03、BSFLG05、BSFLG06)对水虻成虫产卵的引诱作用明显强于所设立的阳性对照FE06;菌株BSFLG07为一种毕赤酵母菌(Pichia kudriavzevii),对武汉亮斑水虻产卵有消极影响。经菌落培养特征、菌体形态比较、16SrDNA或18SrDNA序列测定和发育树比对分析,鉴定出这5种具有显著引诱武汉亮斑水虻产卵作用的微生物分别为:枯草芽胞杆菌(Bacillus subtilis)BSFLG01、一种沙雷氏菌(Serratiasp.)BSFLG03、库德毕赤酵母(Pichia kudriavzevii)BSFLG04、皱落假丝酵母(Candida rugosas)BSFLG05、粘质沙雷氏菌(Serratia marcescens)BSFLG06。     

pCR3.1-bvLDH-C′4的构建及在体内外的表达

精子特异性乳酸脱氢酶(LDH-C4)在精子的运动和存活等生理活动中起着重要的作用. 研究表明,LDH-C4接种鼠、兔等能够降低动物的生育率.通过RT-PCR方法从布氏田鼠睾丸总RNA中克隆出编码抗原决定簇的LDH-C4基因片断;采用T-A克隆的方法将其插入到pCR3.1载体中构建重组载体pCR3. 1-bvLDH-C′4,测序结果表明克隆的基因片断与已知小鼠相应片断有83%的序列同源.通过质脂体法转染HeLa细胞,RT-PCR证实其可在mRNA水平有效表达;通过肌肉接种BALB/c小鼠,RT-PCR结果表明其在体内也可有效表达.     

齿茎马颖蜡蝉的再研究(半翅目:蜡蝉总科:颖蜡蝉科)

对齿茎马颖蜡蝉Magadha denticulata Fennah,1956做了进一步研究,证实该种不属于马颖蜡蝉属Ma-gadhaDistant,1906,而是半贝颖蜡蝉属Semibetatropis Chen,Yang et Wilson,1988种类;同时提供该种雄、雌虫体的鉴别特征图。检视标本保存于美国加州科学院(CAS)。     

One-step purification and immobilization of recombinant proteins using SpyTag/SpyCatcher chemistry

Biotechnology Letters - Based on the specific and spontaneous formation of isopeptide bonds by SpyCatcher/SpyTag, we have developed a one-step method for purification and immobilization of...