Soluble egg antigen can cause liver granuloma and fibrosis after eggs of Schistosoma japonicum deposited in liver vascular. If liver fibrosis reaching to a certain extent, the processes of fibrosis will continue whether or not the worm cleaned from human body , and even develop to advanced schistosomiasis. So the early diagnosis of high-risk patients of advanced schistosomiasis has important clinical significance. Detection of peripheral blood related markers is one of the main methods for diagnosis of liver fibrosis.The project plans to select schistosomiasis liver fibrosis patients as research objects, through systematically testing and comparing metabolic indexes and cytokines levels in peripheral blood of different population, screening out specific indexes for prediction of advanced schistosomiasis. And through the prospective study, we plan to track dynamic changes of these indicators and its relationship with disease progression in population with liver fibrosis of schistosomiasis, to guide treatment of advanced schistosomiasis. The project will provide an effective tool for prediction of advanced schistosomiasis and reducing new cases as a consequence, and at the same time also can avoid excessive treatment of liver fibrosis in patients with low risk, greatly reduce the waste of medical resources.
日本血吸虫虫卵沉积肝脏血管后可溶性虫卵抗原可引起肝肉芽肿和纤维化。血吸虫病肝纤维化达到一定程度后,即使杀灭虫体纤维化进程仍将继续,甚至发展至晚期血吸虫病。故对于晚期血吸虫病高风险患者的早期诊断预测具有重要临床意义。外周血相关标志物的检测是肝纤维诊断的主要方法之一。本项目拟以日本血吸虫病肝纤维化病人为研究对象,通过系统检测比较不同人群外周血相关代谢指标和细胞因子水平,筛选出特异性预测诊断指标,并通过前瞻性研究跟踪观察这些指标在血吸虫病肝纤维化人群中的动态变化及与疾病进展的关系,指导临床治疗。本项目的开展将为早发现早干预,减少晚血新发病例提供有效的预测诊断工具,同时亦可避免对晚血低风险患者的过度治疗,极大减少医疗资源的浪费。
日本血吸虫虫卵沉积肝脏血管后可溶性虫卵抗原可引起肝肉芽肿和纤维化。血吸虫病肝纤维化达到一定程度后,即使杀灭虫体纤维化进程仍将继续,甚至发展至晚期血吸虫病。故对于晚期血吸虫病高风险患者的早期预测诊断具有重要临床意义。外周血相关标志物是肝纤维化诊断的重要参考指标。本项目以不同等级日本血吸虫肝纤维化人群为研究对象,通过系统分析比较不同人群肝纤维化状态变化、风险因素、外周血相关标志物水平,筛选出特异性预测诊断指标,构建晚血预测模型,并通过队列研究验证模型的预测准确性。项目重要结果如下:鄱阳湖日本血吸虫病流行区人群由血吸虫感染引起的肝纤维化状态处于动态变化中,近30%的患者肝纤维化状况恶化,20%左右的患者趋于好转。男性、38岁及以上居民、渔民和未接受抗纤维化治疗的人是晚期血吸虫病高风险人群。抗纤维化治疗是预防晚期血吸虫病的保护因素。不同等级血吸虫肝纤维化患者外周血部分生物标志物水平有显著性差异。肝纤维化病程早期和晚期出现异常的生物标志物不尽相同。HGB, MON, GLB, GGT, APTT, VIII,和 Fbg等 7个生物标志物入选构建晚期血吸虫病FDA预测模型,交叉验证该模型的准确率为86.7%。模型对晚期血吸虫病预测总符合率为81.4%,具有较高的预测准确性。此外,通过分析新报告晚期血吸虫病例的时空分布特征,表明虽然随着血吸虫病疫情的控制,晚期血吸虫病发病率也呈逐年下降趋势,但在空间分布上依然存在多个聚集区域。今后针对此类区域应进一步加大晚期血吸虫病筛查和救治力度。本项目成功构建了晚期血吸虫病无创预测诊断模型,为早发现早干预晚期血吸虫病提供有效的预测诊断工具,同时亦避免了对晚血低风险患者的过度治疗,极大减少医疗资源的浪费。
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数据更新时间:2023-05-31
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