作者:邓秋平 单位:成都市锦江区妇幼保健院 SAA主要由肝细胞分泌,属于载脂蛋白家族,在正常人血液中有少量存在。当人体处于炎症、疾病活动期和大面积组织损伤时即可快速升高,可作为感染性疾病的诊断指标。有研究表明,血清SAA水平在受感染、炎症等因素刺激时可明显升高,可快速、准确地确定感染类型,为儿童呼吸道疾病早期诊断提供有效的实验室依据。 有研究发现,血清CRP在机体发生炎症6-8h后明显升高,可作为呼吸道细菌感染的敏感指标,且CRP半衰期短,可精确反映炎症感染情况。Vssileva等研究表明,甲流重症患者CRP水平显著升高,CRP可与其他生物标志物联合应用,预测H1N1流感。 亦有研究发现,SAA与CRP联合检测对早期诊断儿童甲流具有一定的价值,其诊断效能优于单独检测,值得临床推广应用。 [1] Zhu W, Zhang H, Xiang X, Zhong L, Yang L, Guo J, Xie Y, Li F, Deng Z, Feng H, Huang Y, Hu S, Xu X, Zou X, Li X, Bai T, Chen Y, Li Z, Li J, Shu Y. Reassortant Eurasian Avian-Like Influenza A(H1N1) Virus from a Severely Ill Child, Hunan Province, China, 2015. Emerg Infect Dis. 2016 Nov;22(11):1930-1936. [2] 杨薇,刘小毅,陈涌泉.血清淀粉样蛋白A、C反应蛋白和血常规检测在儿童呼吸道感染早期诊断中的应用价值[J].国际医药卫生导报,2019,25(4):576-579 [3] Twomey M , Fleming H , Moloney F , et al. C-reactive protein and radiographic findings of lower respiratory tract infection in infants[J]. World Journal of Radiology, 2017,9(4):206-211. [4]Chen R H , Xie T , Jia Q Y . The value of combined detection of serum SAA and HBP in the diagnosis and evaluation of bacterial infection in critically ill patients[J].Lin- chuangFeikeZaizhi,2018,23(8):1423-1427. [5]Xing-Wen H U , Wang W P . Analysis on combined detection of SAA,CRP and WBC in children with acute respiratory tract infection[J]. Chinese Journal of Laboratory Diagnosis, 2018,22(10):1734-1736. [6]Karasahin, OmerTasar, Pinar TosunTimur, OzgeYildirim, FilizBinici, Dogan NasirSahin, Sevnaz. The value of C-reactive protein in infection diagnosis and prognosis in elderly patients[J]. Aging clinical and experimental research, 2018, 30(6):555-562. [7]Li Y L , Zhai L C , Ji J H , et al. Detection of combined procalcitonin and c-reactive protein applied in the diagnosis of bacterial infections.[J]. Journal of Biological Regulators & Homeostatic Agents, 2017, 31(1):177-181. [8]Vasileva D, Badawi A. C-reactive protein as a biomarker of severe H1N1 influenza. Inflamm Res. 2019 Jan;68(1):39-46. [9] Liao JY,Zhang TEarly diagnostic value of serum amyloid A combined with C-reactive protein in diagnosis of influenza A in children[J].Shiyong YixueZazhi,2017,33 (14):2368- 2370. |