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Previous studies have shown that miR-467b plays a central role in the progression of atherosclerosis via regulating LPL expression. However, the regulatory mechanism of miR-467b in regulateing the CE and FC formation is still unclear. Interestingly, computational analysis demonstrated that ACAT1 which converts intracellular FC into the storage form of CE, and ABCA1 which promotes cellular FC efflux...
Atherosclerosis is a major cause of coronary artery disease, which is characterized by cellular lipid accumulation. Lipoprotein lipase (LPL) is a key enzyme in lipid metabolism. Studies have shown that macrophage-derived LPL exhibits proatherogenic properties, and plays a major role in lipid accumulation in macrophages. Evidence suggests that oxidative stress can effectively enhance macrophage LPL...
The short isoform of Rho guanine nucleotide exchange factor ARHGEF5 is known as TIM, which plays diverse roles in, for example, tumorigenesis, neuronal development and Src-induced podosome formation through the activation of its substrates, the Rho family of GTPases. The activation is auto-inhibited by a putative helix N-terminal to the DH domain of TIM, which is stabilized by the intramolecular interaction...
Accumulating evidence suggests that microRNA-590 (miR-590) has protective effects on cardiovascular diseases, but the mechanism is unknown. Interestingly, previous studies from our laboratory and others have shown that macrophage-derived lipoprotein lipase (LPL) might accelerate atherosclerosis by promoting lipid accumulation and inflammatory response. However, the regulation of LPL at the post-transcriptional...
Piromelatine, a novel investigational multimodal sleep medicine, is developed for the treatment of patients with primary and co-morbid insomnia. Piromelatine has been shown to inhibit weight gain and improve insulin sensitivity in high-fat/high-sucrose-fed (HFHS) rats. Considering that piromelatine has also been implicated in lowering of triglyceride levels in HFHS rats, this work elucidated whether...
LPL (lipoprotein lipase) is a rate-limiting enzyme involved in the hydrolysis of triglycerides. Previous studies have shown that microRNA (miR)-467b regulates hepatic LPL expression and plays a role in the progression of steatosis or abnormal lipid retention in obese mice. Macrophage-derived LPL has been shown to promote atherosclerosis. However, if miR-476b influences macrophage LPL expression and...
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