{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,10,10]],"date-time":"2023-10-10T14:24:06Z","timestamp":1696947846900},"reference-count":41,"publisher":"American Physiological Society","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["American Journal of Physiology-Endocrinology and Metabolism"],"published-print":{"date-parts":[[2003,3,1]]},"abstract":"<jats:p>Triglyceride hydrolysis by the perfused rat hindlimb is enhanced with serotonin-induced nonnutritive flow (NNF) and may be due to the presence of nonnutritive route-associated connective tissue fat cells. Here, we assess whether NNF influences muscle uptake of 0.55 mM palmitate in the perfused hindlimb. Comparisons were made with insulin-mediated glucose uptake. NNF induced during 60 nM insulin infusion inhibited hindlimb oxygen uptake from 22.0 \u00b1 0.5 to 9.7 \u00b1 0.8 \u03bcmol \u00b7 g<jats:sup>\u22121<\/jats:sup>\u00b7 h<jats:sup>\u22121<\/jats:sup>( P &lt; 0.001), 1-methylxanthine metabolism (indicator of nutritive flow) from 5.8 \u00b1 0.4 to 3.8 \u00b1 0.4 nmol \u00b7 min<jats:sup>\u22121<\/jats:sup>\u00b7 g<jats:sup>\u22121<\/jats:sup>( P = 0.004), glucose uptake from 29.2 \u00b1 1.7 to 23.1 \u00b1 1.8 \u03bcmol \u00b7 g<jats:sup>\u22121<\/jats:sup>\u00b7 h<jats:sup>\u22121<\/jats:sup>( P = 0.005) and muscle 2-deoxyglucose uptake from 82.1 \u00b1 4.6 to 41.6 \u00b1 6.7 \u03bcmol \u00b7 g<jats:sup>\u22121<\/jats:sup>\u00b7 h<jats:sup>\u22121<\/jats:sup>( P &lt; 0.001). Palmitate uptake, unaffected by insulin alone, was inhibited by NNF in extensor digitorum longus, white gastrocnemius, and tibialis anterior muscles; average inhibition was from 13.9 \u00b1 1.2 to 6.9 \u00b1 1.4 \u03bcmol \u00b7 g<jats:sup>\u22121<\/jats:sup>\u00b7 h<jats:sup>\u22121<\/jats:sup>( P = 0.02). Thus NNF impairs both fatty acid and glucose uptake by muscle by restricting flow to myocytes but, as shown previously, favors triglyceride hydrolysis and uptake into nearby connective tissue fat cells. The findings have implications for lipid partitioning in limb muscles between myocytes and attendant adipocytes.<\/jats:p>","DOI":"10.1152\/ajpendo.00153.2002","type":"journal-article","created":{"date-parts":[[2015,3,3]],"date-time":"2015-03-03T19:51:48Z","timestamp":1425412308000},"page":"E611-E617","source":"Crossref","is-referenced-by-count":15,"title":["Nonnutritive flow impairs uptake of fatty acid by white muscles of the perfused rat hindlimb"],"prefix":"10.1152","volume":"284","author":[{"given":"L. H.","family":"Clerk","sequence":"first","affiliation":[{"name":"Department of Biochemistry, Medical School, University of Tasmania, Hobart, Tasmania 7001, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M. 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