諾如病毒檢測(cè)試劑盒（免疫捕獲法）

廣州健侖生物科技有限公司

主要用途：用于檢測(cè)糞便標(biāo)本中的諾如病毒抗原，以支持諾如病毒感染的診斷。

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存儲(chǔ)條件：2-30℃

諾如病毒檢測(cè)試劑盒（免疫捕獲法）

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【公司名稱】 廣州健侖生物科技有限公司
【】    楊永漢 
【】 
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【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(hào)二期2幢101-3室
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低水平氧氣促進(jìn)HIF-1α的產(chǎn)生與活化，它以兩種方式保護(hù)細(xì)胞。首先，它開(kāi)啟一些基因產(chǎn)生蛋白幫助細(xì)胞適應(yīng)氧氣不足。它也能停止DNA復(fù)制，防止細(xì)胞分裂并增加更多需氧細(xì)胞到一個(gè)已經(jīng)很惡劣的環(huán)境中。
了解某些細(xì)胞忽略HIF-1α的警告并且繼續(xù)分裂，Gregg Semenza博士及其團(tuán)隊(duì)尋找HIF-1α與Cdk1、Cdk2之間的關(guān)系，這一蛋白已知調(diào)節(jié)細(xì)胞分裂的決定。他們發(fā)現(xiàn)HIF-1α與兩者可以相互作用，但是Cdk1增加HIF-1α水平，而Cdk2減低HIF-1α水平。
Semenza的團(tuán)隊(duì)?wèi)岩蒀dk1與Cdk2按照HIF-1α的指示行事通過(guò)細(xì)胞的微型“垃圾處理器”稱為蛋白酶體標(biāo)記或者不標(biāo)記毀滅。但是，當(dāng)研究人員限制蛋白酶體的功能后，他們發(fā)現(xiàn)并沒(méi)有改變HIF-1α的水平。相反，結(jié)果證明是Cdk1與Cdk2通過(guò)細(xì)胞的溶酶體標(biāo)記或者不標(biāo)記毀滅改變了HIF-1α水平。就他們所知，這是*次發(fā)現(xiàn)溶酶體牽涉到細(xì)胞的分裂決定中。
值得注意的是，在某些腫瘤細(xì)胞中，Cdk2能夠增加HIF-1α的水平同時(shí)也刺激其基因激活作用。有效效應(yīng)是細(xì)胞連續(xù)分裂同時(shí)應(yīng)付低氧水平。在培養(yǎng)的細(xì)胞中，藥物抑制Cdk1以防止HIF-1α水平的下降，并且恢復(fù)停止細(xì)胞分裂的能力，揭示它們也許能有效治療某些腫瘤。

Low levels of oxygen promote HIF-1α production and activation, which protects cells in two ways. First, it turns on some gene-producing proteins to help cells adapt to oxygen deficiency. It also stops DNA replication, prevents cell division and adds more aerobic cells to an already harsh environment.
Knowing some cells ignore the warning of HIF-1α and continue to divide, Dr. Gregg Semenza and his team looked for a relationship between HIF-1α and Cdk1, Cdk2, a protein known to regulate cell division. They found that HIF-1α interacted with both, but Cdk1 increased HIF-1α levels and Cdk2 decreased HIF-1α levels.
Semenza's team suspects that Cdk1 and Cdk2, acting on HIF-1α's targets, are called proteasome tags or unmarked annihilation through the cells' tiny "garbage disposers." However, when researchers limited proteasome function, they found that they did not alter HIF-1α levels. Conversely, the results demonstrate that altering HIF-1Î ± levels by lysosomal or unlabeled destruction of Cdk1 and Cdk2 by cells. To the best of their knowledge, this is the first discovery that lysosomes are involved in cell division decisions.
It is noteworthy that in some tumor cells, Cdk2 can increase the level of HIF-1α and also stimulate its gene activation. The effective effect is the continuous division of cells while dealing with hypoxia levels. In cultured cells, the drug inhibits Cdk1 to prevent a decrease in HIF-1α levels and resumes its ability to stop cell division, revealing that they may be effective in treating certain tumors.