{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T16:46:19Z","timestamp":1788540379178,"version":"build-2803163510"},"reference-count":54,"publisher":"Wiley","license":[{"start":{"date-parts":[[2019,3,10]],"date-time":"2019-03-10T00:00:00Z","timestamp":1552176000000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Oxidative Medicine and Cellular Longevity"],"published-print":{"date-parts":[[2019,3,10]]},"abstract":"<jats:p>We explored the effects of chitosan oligosaccharides (COS) on coronary heart disease (CHD) patients. The component of COS was measured by matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS). CHD patients were evenly assigned into the COS group (COG) and the placebo group (CG). The duration of treatment was 6 months and therapeutic results were explored by measuring left ventricular ejection fraction (LVEF) value, Lee scores, quality of life (QOL), blood urea nitrogen, and serum creatinine. The intestinal flora were determined by 16s rDNA sequencing. The circulating antioxidant levels and lipid profiles were compared between two groups. There were 7 different degrees of polymerization (DP4-10) in COS. Lee scores, QOL scores, and LVEF values in the COG group were higher than those in the CG group (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mi>P<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn>0.05<\/mml:mn><\/mml:math>). COS treatment improved blood urea nitrogen and serum creatinine when compared with controls (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\"><mml:mi>P<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn>0.05<\/mml:mn><\/mml:math>). Circulating antioxidant levels were higher in the COG group than in the CG group. COS consumption increased the serum levels of SOD and GSH and reduced the levels of ALT and AST (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M3\"><mml:mi>P<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn>0.05<\/mml:mn><\/mml:math>). Meanwhile, lipid profiles were improved in the COG group. COS consumption increased the abundance of <jats:italic>Faecalibacterium<\/jats:italic>, <jats:italic>Alistipes<\/jats:italic>, and <jats:italic>Escherichia<\/jats:italic> and decreased the abundance of <jats:italic>Bacteroides<\/jats:italic>, <jats:italic>Megasphaera<\/jats:italic>, <jats:italic>Roseburia<\/jats:italic>, <jats:italic>Prevotella<\/jats:italic>, and <jats:italic>Bifidobacterium<\/jats:italic> (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M4\"><mml:mi>P<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn>0.05<\/mml:mn><\/mml:math>). On the other hand, COS consumption increased the probiotic species <jats:italic>Lactobacillus<\/jats:italic>, <jats:italic>Lactococcus<\/jats:italic>, and <jats:italic>Phascolarctobacterium<\/jats:italic>. The increased species have been reported to be associated with antioxidant properties or lipid improvement. COS had similar effects with chitohexaose on the growth rate of these species. Therefore, COS ameliorate the symptoms of CHD patients by improving antioxidant capacities and lipid profiles via the increase of probiotics in the intestinal flora.<\/jats:p>","DOI":"10.1155\/2019\/7658052","type":"journal-article","created":{"date-parts":[[2019,3,10]],"date-time":"2019-03-10T19:31:56Z","timestamp":1552246316000},"page":"1-11","source":"Crossref","is-referenced-by-count":41,"title":["Chitosan Oligosaccharides Show Protective Effects in Coronary Heart Disease by Improving Antioxidant Capacity via the Increase in Intestinal Probiotics"],"prefix":"10.1155","volume":"2019","author":[{"given":"Tiechao","family":"Jiang","sequence":"first","affiliation":[{"name":"Department of Cardiovascular, China-Japan Union Hospital of Jilin University, Changchun 130033, China"},{"name":"Jilin Provincial Molecular Biology Research Center for Precision Medicine of Major Cardiovascular Disease, Changchun 130033, 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130021, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7282-4074","authenticated-orcid":true,"given":"Xin","family":"Liu","sequence":"additional","affiliation":[{"name":"Central Sterile Supply Department, China-Japan Union Hospital of Jilin University, Changchun 130033, 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