副百日咳桿菌parapertussis多價血清OMA

廣州健侖生物科技有限公司

本司長期供應(yīng)尼古丁（可替寧）檢測試劑盒，其主要品牌包括美國NovaBios、廣州健侖、廣州創(chuàng)侖等進(jìn)口產(chǎn)品，國產(chǎn)產(chǎn)品，試劑盒的實(shí)驗(yàn)方法是膠體金方法。

我司還有很多種血清學(xué)診斷血清、血液檢測、免疫檢測產(chǎn)品、毒素檢測、凝集檢測、酶免檢測、層析檢測、免疫熒光檢測產(chǎn)品，。

（ MOB：楊永漢）  

本試劑盒主要用于對病菌細(xì)菌進(jìn)行檢測，利用快速玻片凝集檢測技術(shù)，對鮑特菌培養(yǎng)物進(jìn)行血清學(xué)鑒定。本試劑盒僅供科研使用。

一般由百日咳鮑特桿菌（簡稱百日咳桿菌）感染所引起，同屬的支氣管敗血癥鮑特桿菌和副百日咳鮑特桿菌亦可引起。百日咳鮑特桿菌是革蘭陰性桿菌，可產(chǎn)生一些致病物質(zhì)，包括百日咳毒素、氣管細(xì)胞毒素、腺苷酸環(huán)化酶毒素、不耐熱毒素以及內(nèi)毒素等。百日咳毒素可使患者淋巴組織中的淋巴細(xì)胞動員到周圍血液及氣管，細(xì)胞毒素可特異性損傷氣管纖毛上皮細(xì)胞，使之變性、壞死。

2.流行病學(xué)

百日咳患者、隱性感染者及帶菌者為傳染源。潛伏期末到病后2～3周傳染性zui強(qiáng)。百日咳經(jīng)呼吸道飛沫傳播，5歲以下小兒易感性zui高，小兒預(yù)防注射10年后百日咳感染率與未接種者無區(qū)別。

副百日咳桿菌parapertussis多價血清OMA

廣州健侖生物長期供應(yīng)各種違禁品檢測試紙、違禁品檢測卡、違禁品檢測試劑盒、藥篩試紙、藥篩試劑盒、嗎啡檢測試劑盒、巴比妥檢測試劑盒等。廣州健侖生物長期供應(yīng)各種違禁品檢測試紙、違禁品檢測卡、違禁品檢測試劑盒、藥篩試紙、藥篩試劑盒、嗎啡檢測試劑盒、巴比妥檢測試劑盒等。

我司還提供其它進(jìn)口或國產(chǎn)試劑盒：登革熱、瘧疾、流感、A鏈球菌、合胞病毒、腮病毒、乙腦、寨卡、黃熱病、基孔肯雅熱、克錐蟲病、違禁品濫用、肺炎球菌、軍團(tuán)菌、化妝品檢測、食品安全檢測等試劑盒以及日本生研細(xì)菌分型診斷血清、德國SiFin診斷血清、丹麥SSI診斷血清等產(chǎn)品。

想了解更多的產(chǎn)品及服務(wù)請掃描下方二維碼：

【公司名稱】 廣州健侖生物科技有限公司
【市場部】    楊永漢

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【騰訊  】 
【公司地址】 廣州清華科技園創(chuàng)新基地番禺石樓鎮(zhèn)創(chuàng)啟路63號二期2幢101-103

魚類以上的脊椎動物，在個體生長發(fā)育的過程中 髓鞘出現(xiàn)得較晚；而人類于出生時髓鞘已經(jīng)形成，但可因神經(jīng)種類的 不同而異。髓鞘的構(gòu)造，根據(jù)偏光顯微鏡的檢查證明，脂質(zhì)從軸索的 中心向外排列成放射狀，蛋白質(zhì)形成同心圓層，一般推斷，蛋白質(zhì)和 脂肪為相互排成層狀的構(gòu)造。根據(jù)x射線衍射，知該層的周期在新鮮材 料上為17—18納米，在固定的材料上為13—15納米。進(jìn)一步用電子顯 微鏡檢查，其同心圓的層狀構(gòu)造及其周期已被確認(rèn)。即電子密度高的 層和透明層相互排列，前者的寬度為3.5—5納米，一般認(rèn)為是蛋白質(zhì) 層，后者被認(rèn)為是脂質(zhì)層。髓鞘的蛋白質(zhì)主要是白明膠一類的硬蛋白 ，脂質(zhì)則包括磷脂質(zhì)（卵磷脂、腦磷脂、鞘磷脂等）、糖脂質(zhì)和膽固 醇等。髓鞘以許旺氏細(xì)胞的細(xì)胞膜包裹著軸索，包裹的層數(shù)尚不清楚 。髓鞘在一些間斷部位缺如，這一部分稱郎飛氏絞窄（郎飛氏結(jié)）， 兩個絞窄之間稱結(jié)間節(jié)（interannular segment）。結(jié)間節(jié)的長度約 為50-1000微米的范圍，長度不一，通常神經(jīng)纖維越粗則越長。另外 已經(jīng)清楚，郎飛氏絞窄不僅在周圍神經(jīng)系統(tǒng)，而且在中樞神經(jīng)系統(tǒng)中 也存在。如果用硝酸銀染色，則在橫斷絞窄部平面變黑的同時，從絞 窄部到兩側(cè)軸索也出現(xiàn)許多變黑的橫紋，呈十字形，因向稱為郎飛氏 （銀）十字（Ranvier′s cross）。在髓鞘的許多地方，可以看到有 呈漏斗狀的、從鞘外表陷入到軸索的施密特-蘭特曼氏切跡 （Schmidt-Lantermann′scleft），和沿此切跡面的螺旋形構(gòu)造的 高爾基氏漏斗（德Golgischer Trichter），但這些構(gòu)造只有在伸長 的神經(jīng)纖維或浸入食鹽水中才出現(xiàn)，因此，一般認(rèn)為它是一種人工產(chǎn) 物。白質(zhì)是中樞神經(jīng)系統(tǒng)中主要的三個組成元素之一。在中樞部，由 神經(jīng)元的軸突或長樹突集聚而成。它不含胞體只有神經(jīng)纖維。白質(zhì)內(nèi) 又有各種不同功能的神經(jīng)束。大腦灰質(zhì)在外部，白質(zhì)在內(nèi)部。 而在脊 髓中，灰質(zhì)內(nèi)部，白質(zhì)包圍在灰質(zhì)外面。

In vertebrates above fish, myelin appears later in the individual's growth and development; while humans have already formed myelin at birth, they may vary with different types of nerves. The structure of myelin sheaths was examined by a polarizing microscope. Lipids were arranged radially outward from the center of the axon, and the proteins formed concentric circles. It is generally assumed that proteins and fats are arranged in layers. According to x-ray diffraction, the period of this layer is known to be 17-18 nanometers on fresh materials and 13-15 nanometers on fixed materials. Further examination with an electron microscope, the concentric layered structure and its cycle have been confirmed. That is, a layer with a high electron density and a transparent layer are aligned with each other. The former has a width of 3.5-5 nm and is generally regarded as a protein layer, and the latter is considered as a lipid layer. Myelin proteins are mainly hard proteins such as gelatin, and lipids include phospholipids (lecithin, cephalin, sphingomyelin, etc.), glycolipids, and cholesterol. Myelin coats the axons with Schwann cell membranes and the number of layers is not known. The myelin sheath is absent at some discontinuities, and this part is called Langer's strangulation (Lang's fly's knot), and an interannular segment between the two strangulations. The length of the internodal joint is in the range of 50-1000 μm, and varies in length. Generally, the thicker the nerve fibers are, the longer the length is. In addition, it is clear that the Langer's strangulation exists not only in the peripheral nervous system but also in the central nervous system. If silver nitrate is used for dyeing, blackening occurs in the plane transverse to the strangulation section, and many darkening stripes appear from the strangulation to the axons on both sides. Cross (Ranvier's cross). In many parts of the myelin sheath, there is a funnel-shaped Schmidt-Lantermann' scleft that falls into the axon from the outer surface of the sheath, and a spiral along this notch. The Golgi funnel (German Golgischer Trichter) was constructed, but these structures only appeared in elongated nerve fibers or were immersed in saline, so it is generally considered an artifact. White matter is one of the three major components of the central nervous system. In the central region, axons or long dendrites of neurons accumulate. It does not contain only neurons in the cell body. White matter has nerve bundles of various functions. The gray matter is on the outside and the white matter is on the inside. In the spinal cord, inside the gray matter, white matter surrounds the gray matter.