Gut microbiota-derived metabolites influence host physiology and pathology, where short-chain fatty acids (SCFAs) are the main class of gut microbiota-derived metabolites. [1] SCFAs are fatty acids containing 1 to 6 carbon atoms, including acetate, propionate, butyrate, and pentanoate, which provide 6% to 10% of the body's total daily energy and 60% to 70% of the colonic epithelial energy needed. [2] Anaerobic bacteria principally generate the SCFAs [1] in the intestine. Once produced, SCFAs are mainly absorbed in the colon (90%-95%), reach circulation, and play roles for distal organs and tissues. [2]
Purpose: Endovascular treatment of femoropopliteal arterial diseases remains controversial. We conducted a Bayesian network meta-analysis of randomized controlled trials aiming to investigate the efficacy differences between paclitaxel- or sirolimus-eluting stents, covered stents, drug-coated balloons, bare metal stents, and percutaneous transluminal angioplasty. Method: MEDLINE, Embase, Ovid, and other relevant online material were searched up to October 21, 2020. Primary endpoints were primary patency and target lesion revascularization at 6, 12, and more than 24 months. Results: Thirty-eight eligible trials included 6026 patients. In terms of primary patency, drug eluting stents were ranked as the most effective treatment based on the surface under the cumulative ranking curve values at 6 (80.6), 12 (78.4), and more than 24 months (96.5) of follow-ups. In terms of target lesion revascularization, drug eluting stents were ranked as the most effective treatment based on the surface under the cumulative ranking curve values at 6 (90.3), 12 (71.3), and more than 24 months (82.1) of follow-ups. Covered stents and bare metal stents had higher ranks in target lesion revascularization than those in primary patency. Sirolimus stents had a higher rank than paclitaxel stents. Conclusion: Drug eluting stents showed encouraging results in primary patency rates and freedom from target lesion revascularization at all phases of follow-up for femoropopliteal arterial diseases. Sirolimus stents appear to be more effective in femoropopliteal segment than paclitaxel stent.
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