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新型血液檢測 診斷早期胰臟癌
2025年2月15日
美國俄勒岡健康與科學大學(Oregon Health & Science University)研究團隊近期推出一種新型血液檢測方法,能夠早期發現胰腺癌。這種新技術稱作PAC-MANN,全名為磁性奈米偵測器檢測蛋白酶活性(protease activity-based assay using a magnetic nanosensor),有望協助醫生診斷,提升胰管腺癌(pancreatic ductal adenocarcinoma, PDAC)患者生存機率。
▲新技術比以往檢測胰腺癌更準確
以往診斷胰管腺癌的方法,例如CA19-9腫瘤標記檢驗,可以推估治療後的預後結果,但對早期診斷來說不夠靈敏。PAC-MANN檢測法是用來辨別血液中,與癌症相關的生物標記,可以彌補這項弱勢,研究團隊分析350位人、包括確診患者、高風險族群和健康參與者的血液樣本,精準定位某些蛋白質,尤其是蛋白酶,在胰管腺癌患者血液裡面活性會增加。
▲45分鐘檢測胰腺癌就有結果
PAC-MANN檢測法在辨別患者、健康人士及非胰管腺癌患者的準確度高達98%,早期辨識出胰臟癌的準確率也高達85%,而且只需要最少8微升的血液,在45分鐘內就能得知結果,有利於較偏鄉或資源匱乏地區。這項新技術也能讓醫生更了解治療效果,研究人員發現患者手術過後,血液內的蛋白酶活性降低,顯示有正面療效。如果未來能透過更多臨床試驗證明PAC-MANN檢測法效力,就有望成為早期檢測胰臟癌利器。
更多其他精彩話題內容:
https://www.notion.so/7023b7b2cd5d4f5082c4aa7fb0fdcd1a?v=d4926f105c56473cbc55a3abe991aeac&pvs=4
https://scalloped-capybara-acc.notion.site/Health-Today-718e21949e6245e9b2e4d0acc93ed0e4
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