{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T21:13:45Z","timestamp":1790802825262,"version":"4.1.0"},"reference-count":21,"publisher":"Springer Science and Business Media LLC","issue":"4","license":[{"start":{"date-parts":[[2013,7,25]],"date-time":"2013-07-25T00:00:00Z","timestamp":1374710400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/2.0\/"},{"start":{"date-parts":[[2013,7,25]],"date-time":"2013-07-25T00:00:00Z","timestamp":1374710400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/2.0\/"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Crit Care"],"abstract":"<jats:title>Abstract<\/jats:title><jats:sec>\n                        <jats:title>Introduction<\/jats:title>\n                        <jats:p>Metabolic dysfunction is one of the hallmarks of sepsis yet little is known about local changes in key organs such as the heart. The aim of this study was to compare myocardial metabolic changes by direct measurements of substrates, such as glucose, lactate and pyruvate, using microdialysis (MD) in <jats:italic>in-vivo<\/jats:italic> porcine endotoxemic and hemorrhagic shock. To assess whether these changes were specific to the heart, we simultaneously investigated substrate levels in skeletal muscle.<\/jats:p>\n                     <\/jats:sec><jats:sec>\n                        <jats:title>Methods<\/jats:title>\n                        <jats:p>Twenty-six female pigs were randomized to three groups: control (C) <jats:italic>n<\/jats:italic> = 8, endotoxemic shock (E) <jats:italic>n<\/jats:italic> = 9 and hemorrhagic shock (H) <jats:italic>n<\/jats:italic> = 9. Interstitial myocardial pyruvate, lactate and glucose were measured using MD. Skeletal muscle MD was also performed in all three groups.<\/jats:p>\n                     <\/jats:sec><jats:sec>\n                        <jats:title>Results<\/jats:title>\n                        <jats:p>Marked decreases in myocardial glucose were observed in the E group but not in the H group compared to controls (mean difference (CI) in mmol\/L: C versus E -1.5(-2.2 to -0.8), <jats:italic>P<\/jats:italic> &lt;0.001; H versus E -1.1(-1.8 to -0.4), <jats:italic>P<\/jats:italic> = 0.004; C versus H -0.4(-1.1 to 0.3), <jats:italic>P<\/jats:italic> = 0.282). Up to four-fold increases in myocardial pyruvate and three-fold increases in lactate were seen in both shock groups with no differences between the two types of shock. There was no evidence of myocardial anaerobic metabolism, with normal lactate:pyruvate (L:P) ratios seen in all animals regardless of the type of shock.<\/jats:p>\n                        <jats:p>In skeletal muscle, decreases in glucose concentrations were observed in the E group only (mean difference: C versus E -0.8(-1.4 to -0.3), <jats:italic>P<\/jats:italic> = 0.007). Although skeletal muscle lactate increased in both shock groups, this was accompanied by increases in pyruvate in the E group only (mean difference: C versus E 121(46 to 195), <jats:italic>P<\/jats:italic> = 0.003; H versus E 77(7 to 147), <jats:italic>P<\/jats:italic> = 0.032; C versus H 43(-30 to 43), <jats:italic>P<\/jats:italic> = 0.229). The L:P ratio was increased in skeletal muscle in response to hemorrhagic, but not endotoxemic, shock.<\/jats:p>\n                     <\/jats:sec><jats:sec>\n                        <jats:title>Conclusions<\/jats:title>\n                        <jats:p>Endotoxemia, but not hemorrhage, induces a rapid decrease of myocardial glucose levels. Despite the decrease in glucose, myocardial lactate and pyruvate concentrations were elevated and not different than in hemorrhagic shock. In skeletal muscle, substrate patterns during endotoxemic shock mimicked those seen in myocardium. During hemorrhagic shock the skeletal muscle response was characterized by a lack of increase in pyruvate and higher L:P ratios.<\/jats:p>\n                        <jats:p>Hence, metabolic patterns in the myocardium during endotoxemic shock are different than those seen during hemorrhagic shock. Skeletal muscle and myocardium displayed similar substrate patterns during endotoxemic shock but differed during hemorrhagic shock.<\/jats:p>\n                     <\/jats:sec>","DOI":"10.1186\/cc12843","type":"journal-article","created":{"date-parts":[[2013,7,25]],"date-time":"2013-07-25T17:34:18Z","timestamp":1374773658000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Depletion of myocardial glucose is observed during endotoxemic but not hemorrhagic shock in a porcine model"],"prefix":"10.1186","volume":"17","author":[{"given":"Michelle S","family":"Chew","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kiran","family":"Shekar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bj\u00f6rn A","family":"Brand","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carl","family":"Norin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adrian G","family":"Barnett","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2013,7,25]]},"reference":[{"key":"2505_CR1","doi-asserted-by":"publisher","first-page":"1599","DOI":"10.1097\/01.CCM.0000266683.64081.02","volume":"35","author":"A Rudiger","year":"2007","unstructured":"Rudiger A, Singer M: Mechanisms of sepsis-induced cardiac dysfunction.\n                           Crit Care Med 2007, 35: 1599-1608. 10.1097\/01.CCM.0000266683.64081.02","journal-title":"Crit Care Med"},{"key":"2505_CR2","first-page":"896430","volume-title":"Crit Care Res Pract","author":"CJ Fernandes Jr","year":"2012","unstructured":"Fernandes CJ Jr, de Assuncao MS: Myocardial dysfunction in sepsis: a large, unsolved puzzle.\n                           Crit Care Res Pract 2012, 896430. 2012"},{"key":"2505_CR3","doi-asserted-by":"publisher","first-page":"490","DOI":"10.1161\/01.RES.67.2.490","volume":"67","author":"GG Schwartz","year":"1990","unstructured":"Schwartz GG, Schaefer S, Meyerhoff DJ, Gober J, Fochler P, Massie B, Weiner MW: Dynamic relation between myocardial contractility and energy metabolism during and following brief coronary occlusion in the pig.\n                           Circ Res 1990, 67: 490-500. 10.1161\/01.RES.67.2.490","journal-title":"Circ Res"},{"key":"2505_CR4","doi-asserted-by":"publisher","first-page":"243","DOI":"10.1016\/S0008-6363(96)00245-3","volume":"33","author":"WC Stanley","year":"1997","unstructured":"Stanley WC, Lopaschuk GD, Hall JL, McCormack JG: Regulation of myocardial carbohydrate metabolism under normal and ischaemic conditions. 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