
Carcinoembryonic antigen - Wikipedia
Carcinoembryonic antigen (CEA) describes a set of highly-related glycoproteins involved in cell adhesion. CEA is normally produced in gastrointestinal tissue during fetal development, but the production stops before birth. Consequently, CEA is usually present at very low levels in the blood of healthy adults (about 2–4 ng/mL). [2]
Carcinoembryonic Antigen - StatPearls - NCBI Bookshelf
2024年12月11日 · Carcinoembryonic antigen (CEA) is a nonspecific serum biomarker that is elevated in many malignancies, including colorectal cancer, medullary thyroid cancer, breast cancer, and mucinous ovarian cancer.
CEA Test (Carcinoembryonic Antigen): What It Is & Results
2022年4月11日 · What is a CEA test? A carcinoembryonic antigen (CEA) test measures a specific blood glycoprotein called CEA. It means a protein with a lot of sugars added to it by normal or cancerous cells. Scientists first discovered CEA in 1968 when they isolated extracts of liver metastasized by colorectal cancer and also from normal fetal digestive tract.
癌胚抗原 - 维基百科,自由的百科全书
2024年12月17日 · 癌胚抗原 (Carcinoembryonic antigen,CEA)是一种存在于粘膜细胞中的 糖蛋白 [1]。 通常胎儿发育时癌胚蛋白会在胃肠组织中产生,但在出生后该物质就不再产生。 因此健康成人的血液中通常癌胚蛋白的含量非常低(约2-4纳克/毫升) [2]。 然而罹患某些类型的癌症患者的血液中癌胚抗原水平会升高,这意味着人们在筛查癌症时癌胚抗原的含量可以作为检测指标。 重度烟瘾者的血液中癌胚抗原的含量也有可能升高 [3]。 癌胚蛋白于1965年在 结肠癌 患者的组 …
癌胚抗原 - 百度百科
癌胚抗原(carcinoembryonic antigen,CEA)是1965年由Gold和Freedman首先从结肠癌和胚胎组织中提取的一种肿瘤相关抗原,是一种具有人类胚胎抗原特性的酸性糖蛋白,存在于内胚层细胞分化而来的癌症细胞表面,是细胞膜的结构蛋白。 在细胞浆中形成,通过细胞膜分泌到细胞外,然后进入周围体液。 因此,可从血清、脑脊液、乳汁、胃液、胸腹水及尿液、粪便等多种体液和排泄物中检出。 以往把CEA作为早期诊断结肠癌和直肠癌的特异性标志物,经大量的临床实践,发 …
Cea Surname Meaning & Cea Family History at Ancestry.com®
There are 2,000 census records available for the last name Cea. Like a window into their day-to-day life, Cea census records can tell you where and how your ancestors worked, their level of education, veteran status, and more. There are 977 immigration records available for …
什麼是癌胚抗原(CEA)檢查? - 醫學網
2018年8月28日 · 血液中有一種蛋白被稱為癌胚抗原 (carcinoembryonic antigen, CEA),癌胚抗原檢查則用於檢測癌胚抗原在血液中的含量。 某些癌症患者體內的癌胚抗原高於正常水平,該檢測有助於發現腫瘤是否在繼續生長,以及評估目前的治療方案是否有效。 癌胚抗原檢查的作用是什麼? 癌胚抗原是體內的一種蛋白質。 未出生前,嬰兒體內的癌胚抗原水平較高;出生後,癌胚抗原水平下降;健康成年人的癌胚抗原水平非常低,但是某些型別的癌症會導致癌胚抗原水平上升。 …
癌胚抗原(CEA)的结构及功能介绍_欧凯生物 - okaybio.com
癌胚抗原(CEA),也被称作癌胚抗原相关细胞粘附分子5、CD66e以及胎粪抗原100(Meconium antigen 100),是免疫球蛋白超家族(IgSF)的成员之一。 CEA借助糖磷脂酰肌醇(GPI)锚定机制固定在细胞膜上;当膜锚定区被磷脂酶C和磷脂酶D裂解时,CEA会进入循环系统。 因此,CEA可以以膜蛋白和分泌蛋白两种形式存在。 健康的成年人体中,血清CEA水平普遍偏低。 CEA表达异常、浓度升高可能与多种类型的癌症相关,包括结直肠癌、胃癌、乳腺癌、卵巢癌 …
002139: Carcinoembryonic Antigen (CEA) - Labcorp
CEA is a monomeric glycoprotein (molecular weight approximately 180,000 daltons) with a variable carbohydrate component of approximately 45% to 60%. 1,2 CEA, like AFP, belongs to the group of carcinofetal antigens produced during the embryonic and fetal period. CEA is mainly found in the fetal gastrointestinal tract and in fetal serum.
CEA Test (Carcinoembryonic Antigen): CEA Cancer Marker Levels - WebMD
3 天之前 · One way they can do that is with a carcinoembryonic antigen test. It measures a protein called CEA in the blood. People with some types of cancers have higher than normal levels of this...
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