Heparin is an anticoagulant (blood thinner) that prevents the formation of blood clots. Heparin is used to treat and prevent blood clots caused by certain medical conditions or medical procedures. Relative fluorescence intensity of MitoSOX in BMDMs treated with LPS (1 μg/mL) for 24 h in the presence or absence of octaparin (5 μg/mL), heparin (5 μg/mL), enoxaparin (5 μg/mL) and fondaparinux (5 μg/mL). Heparin will not dissolve blood clots that have already formed, but it may prevent the clots from becoming larger and causing more serious problems. Heparin is used to prevent or treat certain blood vessel, heart, and lung conditions. 标准肝素：临床上最初应用的肝素称为标准肝素、普通肝素或未分级肝素（Unfractionated Heparin），临床上主要用于 抗凝血 和 抗血栓，治疗各种原因引起的 弥漫性血管内凝血 和抗血栓，以及 血液透析 、体外循环、导管术、 微血管 手术等操作中的抗凝血处理等。 Heparin sodium salt (Sodium heparin) 是一种抗凝剂，可与 抗凝血酶III (ATIII) 可逆地结合，大大加快了ATIII使 凝血酶因子IIa 和 Xa 失活的速度。 Heparin sodium salt 显著抑制外泌体-细胞相互作用。 Heparin is an anticoagulant (“blood thinner”) that stops your blood from forming blood clots or making them bigger. It can help a blood clot dissolve faster, but it can’t break it down. Heparin, also known as unfractionated heparin (UFH), is a medication and naturally occurring glycosaminoglycan. [3][4] It is one of the most studied sulfated polysaccharides. Heparin is a blood anticoagulant that increases the activity of antithrombin. [5] It is used in the treatment of heart attacks and unstable angina. [3] 肝素 是什么？ 肝素（Heparin，缩写 Hep）是一类 高度硫酸化的 糖胺聚糖 （glycosaminoglycan, GAG），本质上是一条由重复二糖单元组成的长链多糖。 在机体内，肝素主要由 肥大细胞和 嗜碱性粒细胞 合成，储存在它们的胞内颗粒中。 Heparin remains a foundational parenteral anticoagulant across both acute and chronic care settings. This narrative review summarizes clinical indications and dosing of unfractionated (UFH) and low-molecular-weight heparin (LMWH). It also details. Heparin, low molecular weight heparin and physical methods for preventing deep vein thrombosis and pulmonary embolism following surgery for hip fractures. Cochrane Database Syst Rev. 2002, (4): CD000305.