| Autor: |
Liu X; Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China., Peng H; Central Laboratory, Chongqing University FuLing Hospital, Chongqing, 408099, China. zhaoxian_48hcu@163.com.; Center of Smart Laboratory and Molecular Medicine, School of Medicine, Chongqing University, Chongqing, 400044, China., Gong L; Central Laboratory, Chongqing University FuLing Hospital, Chongqing, 408099, China. zhaoxian_48hcu@163.com.; Department of General Practice of Jiangbei Campus, The First Affiliated Hospital of Army Medical University (The 958th Hospital of Chinese People's Liberation Army), Chongqing, 400020, China., Zhang H; Central Laboratory, Chongqing University FuLing Hospital, Chongqing, 408099, China. zhaoxian_48hcu@163.com.; Center of Smart Laboratory and Molecular Medicine, School of Medicine, Chongqing University, Chongqing, 400044, China., Zhao C; Central Laboratory, Chongqing University FuLing Hospital, Chongqing, 408099, China. zhaoxian_48hcu@163.com.; Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, Harbin City, Heilongjiang Province, 150000, China. abc7231719@163.com., Lai W; Central Laboratory, Chongqing University FuLing Hospital, Chongqing, 408099, China. zhaoxian_48hcu@163.com., An G; Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, Harbin City, Heilongjiang Province, 150000, China. abc7231719@163.com., Zhao X; Central Laboratory, Chongqing University FuLing Hospital, Chongqing, 408099, China. zhaoxian_48hcu@163.com. |
| Abstrakt: |
Cardiovascular disease, intimately linked to dyslipidemia, is one of the leading global causes of mortality. Dyslipidaemia often presents as an elevated concentration of low-density lipoprotein (LDL) and a decreased concentration of high-density lipoprotein (HDL). Therefore, accurately measuring the levels of LDL and HDL particles is crucial for assessing the risk of developing cardiovascular diseases. However, conventional approaches can commonly quantify HDL/LDL particles by detecting cholesterol or protein molecules within them, which may fail to reflect the number of intact particles. In addition, these approaches are sometimes tedious and time-consuming, highlighting the need for a novel method for precise and effective identification of intact HDL and LDL particles. We have devised a technique that allows accurately and sensitively determining the levels of intact HDL and LDL in a sample without the need for isolation. This method relies on antibody-based immobilization and a self-priming hairpin-triggered Cas12a/crRNA signaling strategy. Based on the elegant design, this technique can be employed to directly and precisely measure the concentration of "actual" HDL and LDL particles, rather than the cholesterol content inside HDL and LDL. The approach has detection limits of 12.3 mg dL -1 and 5.4 mg dL -1 for HDL and LDL, respectively, and is also suitable for analyzing lipoproteins in clinical samples. Hence, this platform exhibits immense potential for clinical applications and health management. |
