Abstract
In this review, we discussed the biological targets of carnitine, its effects on immune function, and how L-carnitine supplementation may help critically ill patients. L-carnitine is a potent antioxidant. L-carnitine depletion has been observed in prolonged intensive care unit (ICU) stays, while L-carnitine supplementation has beneficial effects in health promotion and regulation of immunity. It is essential for the uptake of fatty acids into mitochondria. By inhibiting the ubiquitin-proteasome system, down-regulating the apelin receptor in cardiac tissue, and reducing β-oxidation of fatty acid, carnitine may decrease vasopressor requirement in septic shock and improve clinical outcomes of this group of patients. We also reviewed animal and clinical studies that have been recruited for evaluating the beneficial effects of L-carnitine in the management of sepsis/ septic shock. Additional clinical data are required to evaluate the optimal daily dose and duration of L-carnitine supplementation.
Keywords: L-carnitine, sepsis, septic shock, critically ill, intensive care, antioxidant.
[http://dx.doi.org/10.1007/s00134-017-4683-6] [PMID: 28101605]
[http://dx.doi.org/10.1111/ijcp.14517] [PMID: 34133821]
[http://dx.doi.org/10.1016/S0140-6736(19)32989-7] [PMID: 31954465]
[http://dx.doi.org/10.1097/00003246-200107000-00002]
[http://dx.doi.org/10.1097/CCM.0b013e318287f850] [PMID: 23514753]
[http://dx.doi.org/10.1097/SHK.0000000000000997] [PMID: 29384504]
[http://dx.doi.org/10.1002/bjs.1800760205] [PMID: 2649205]
[http://dx.doi.org/10.1016/S0899-9007(97)00206-2] [PMID: 9290110]
[http://dx.doi.org/10.1016/j.ccm.2016.01.011] [PMID: 27229648]
[http://dx.doi.org/10.1097/00003246-199606000-00039] [PMID: 8681582]
[http://dx.doi.org/10.18433/J3JS4C] [PMID: 24021290]
[PMID: 5639556]
[http://dx.doi.org/10.1097/00075198-200308000-00004] [PMID: 12883281]
[http://dx.doi.org/10.1002/phar.2448]
[http://dx.doi.org/10.4161/viru.26907] [PMID: 24185508]
[http://dx.doi.org/10.1042/bst0311133] [PMID: 14641011]
[http://dx.doi.org/10.1177/0148607113495414] [PMID: 23851424]
[http://dx.doi.org/10.1186/s13054-018-2275-7] [PMID: 30594224]
[http://dx.doi.org/10.1016/S0140-6736(02)09459-X] [PMID: 12133657]
[http://dx.doi.org/10.1164/rccm.201003-0326OC] [PMID: 20538956]
[http://dx.doi.org/10.1007/BF03261931] [PMID: 22804748]
[http://dx.doi.org/10.1016/S0021-9258(19)44202-6] [PMID: 4690599]
[http://dx.doi.org/10.1196/annals.1320.012] [PMID: 15591010]
[http://dx.doi.org/10.1186/1743-7075-7-30] [PMID: 20398344]
[PMID: 2521428]
[PMID: 1879992]
[http://dx.doi.org/10.1513/AnnalsATS.201409-415OC] [PMID: 25496487]
[http://dx.doi.org/10.1016/0167-5699(95)80159-6] [PMID: 7779248]
[http://dx.doi.org/10.1177/0148607185009004483] [PMID: 3928925]
[http://dx.doi.org/10.1007/s00134-018-5085-0] [PMID: 29675566]
[http://dx.doi.org/10.1001/jama.2014.2637] [PMID: 24638143]
[PMID: 25909313]
[http://dx.doi.org/10.1186/s13063-019-3254-2] [PMID: 30953543]
[http://dx.doi.org/10.7759/cureus.5016] [PMID: 31497446]
[http://dx.doi.org/10.1097/01.mco.0000247466.41661.ba] [PMID: 17053424]
[http://dx.doi.org/10.1016/j.cger.2017.01.002] [PMID: 28364991]
[http://dx.doi.org/10.1097/MD.0000000000014733] [PMID: 30817625]
[http://dx.doi.org/10.4314/ahs.v21i1.36] [PMID: 34394308]
[http://dx.doi.org/10.1097/MD.0000000000015473] [PMID: 31096444]
[http://dx.doi.org/10.1002/14651858.CD003703.pub3]
[http://dx.doi.org/10.1186/s13054-016-1529-5] [PMID: 27788688]
[http://dx.doi.org/10.1186/s13613-017-0282-5] [PMID: 28585162]
[http://dx.doi.org/10.1186/s13054-020-03356-w] [PMID: 33143750]
[http://dx.doi.org/10.1186/s12937-018-0356-8] [PMID: 29859104]
[http://dx.doi.org/10.21037/jtd.2019.12.85] [PMID: 32148926]
[http://dx.doi.org/10.1080/14767058.2017.1402001] [PMID: 29103346]
[PMID: 34120246]
[http://dx.doi.org/10.1016/j.clnesp.2018.10.011] [PMID: 30661700]
[http://dx.doi.org/10.1179/2046905515Y.0000000042] [PMID: 26120004]
[http://dx.doi.org/10.1097/ALN.0000000000001882] [PMID: 28872482]
[http://dx.doi.org/10.1186/s13054-019-2548-9] [PMID: 31370866]
[http://dx.doi.org/10.1016/j.clnu.2017.05.006] [PMID: 28549527]
[http://dx.doi.org/10.1016/j.ejphar.2019.172889] [PMID: 31870831]
[http://dx.doi.org/10.1002/fsn3.2003] [PMID: 33473300]
[http://dx.doi.org/10.1186/s13054-014-0660-4] [PMID: 25475621]
[http://dx.doi.org/10.1186/s12871-015-0063-3] [PMID: 26041306]
[http://dx.doi.org/10.3389/fnut.2021.648442] [PMID: 34222298]
[http://dx.doi.org/10.1002/iub.1976] [PMID: 30501009]
[http://dx.doi.org/10.4103/IJCIIS.IJCIIS_159_20] [PMID: 34395210]
[http://dx.doi.org/10.1038/s41598-021-95386-9] [PMID: 34349184]
[http://dx.doi.org/10.1097/TA.0000000000002613] [PMID: 32039973]
[http://dx.doi.org/10.1016/j.ajem.2020.08.050] [PMID: 33036854]
[http://dx.doi.org/10.1128/IAI.72.3.1820-1823.2004] [PMID: 14977995]
[http://dx.doi.org/10.1016/j.ejphar.2004.04.004] [PMID: 15178375]
[http://dx.doi.org/10.1016/j.burns.2016.09.023] [PMID: 28034666]
[http://dx.doi.org/10.1016/j.freeradbiomed.2018.05.073] [PMID: 29803807]
[http://dx.doi.org/10.1007/s12035-017-0706-0] [PMID: 28879460]
[http://dx.doi.org/10.1016/j.cub.2017.05.064] [PMID: 28743020]
[http://dx.doi.org/10.1086/650996] [PMID: 20151841]
[http://dx.doi.org/10.1186/s13054-018-2102-1] [PMID: 29980217]
[http://dx.doi.org/10.1002/ncp.10327] [PMID: 31187494]
[http://dx.doi.org/10.1177/0310057X1604400410] [PMID: 27456173]
[http://dx.doi.org/10.1016/j.meatsci.2007.06.011] [PMID: 22062286]
[http://dx.doi.org/10.1006/abbi.1996.0203] [PMID: 8638946]
[http://dx.doi.org/10.1042/bj3610417] [PMID: 11802770]
[http://dx.doi.org/10.3390/molecules25092127] [PMID: 32370025]
[http://dx.doi.org/10.1113/jphysiol.2006.125799] [PMID: 17331998]
[http://dx.doi.org/10.1016/j.addr.2009.06.009] [PMID: 19720100]
[http://dx.doi.org/10.1016/j.euroneuro.2012.11.013] [PMID: 23428336]
[http://dx.doi.org/10.1016/j.nut.2004.04.003] [PMID: 15212755]
[http://dx.doi.org/10.1519/JSC.0b013e3182a76790] [PMID: 24263659]
[http://dx.doi.org/10.1007/BF00334420] [PMID: 8803503]
[http://dx.doi.org/10.1249/01.mss.0000227314.85728.35] [PMID: 16826026]
[http://dx.doi.org/10.1007/s00706-005-0322-y]
[http://dx.doi.org/10.1519/JSC.0b013e31817d48d9] [PMID: 18545197]
[http://dx.doi.org/10.1186/s12986-016-0158-y] [PMID: 28115977]
[http://dx.doi.org/10.3390/nu10030349] [PMID: 29534031]
[http://dx.doi.org/10.1017/jns.2017.4] [PMID: 28620483]
[http://dx.doi.org/10.2527/2001.79123104x] [PMID: 11811466]
[http://dx.doi.org/10.3390/nu12092696] [PMID: 32899398]
[http://dx.doi.org/10.1016/S0300-483X(03)00050-7] [PMID: 12699906]
[http://dx.doi.org/10.1016/j.cca.2007.11.013] [PMID: 18083121]
[http://dx.doi.org/10.1007/BF03324561] [PMID: 15636457]
[http://dx.doi.org/10.1172/JCI64096] [PMID: 23454758]
[http://dx.doi.org/10.1016/j.lfs.2019.116607] [PMID: 31254582]
[PMID: 2387663]
[http://dx.doi.org/10.1111/j.1582-4934.2008.00342.x] [PMID: 18410524]
[http://dx.doi.org/10.1007/s10565-006-0025-0] [PMID: 16463019]
[http://dx.doi.org/10.1155/2014/726158]
[http://dx.doi.org/10.9738/INTSURG-D-15-00071.1] [PMID: 25951165]
[http://dx.doi.org/10.1016/B978-0-12-386454-3.00345-6]
[http://dx.doi.org/10.5772/intechopen.83544]
[http://dx.doi.org/10.1016/j.lfs.2005.05.103] [PMID: 16253281]
[http://dx.doi.org/10.1016/j.nut.2010.06.009] [PMID: 20869209]
[http://dx.doi.org/10.1097/00005344-200405000-00013] [PMID: 15071358]
[http://dx.doi.org/10.1371/journal.pone.0204913] [PMID: 30403670]
[http://dx.doi.org/10.1186/1423-0127-19-32] [PMID: 22435679]
[http://dx.doi.org/10.1038/ejcn.2017.131] [PMID: 28832573]
[http://dx.doi.org/10.1155/2007/72741]
[PMID: 16135998]
[http://dx.doi.org/10.2478/s11658-009-0036-y] [PMID: 19936630]
[http://dx.doi.org/10.1016/j.gene.2013.10.017] [PMID: 24148561]
[http://dx.doi.org/10.1007/s40200-020-00627-9] [PMID: 33520867]
[http://dx.doi.org/10.12659/MSM.881311] [PMID: 21169901]
[http://dx.doi.org/10.2165/00126839-200809020-00003] [PMID: 18298127]
[http://dx.doi.org/10.1016/S0168-8227(01)00240-6] [PMID: 11378209]
[http://dx.doi.org/10.1016/j.ijcard.2005.02.053] [PMID: 16337498]
[http://dx.doi.org/10.1023/A:1024984013069] [PMID: 12938853]
[http://dx.doi.org/10.1159/000477419] [PMID: 28697503]
[http://dx.doi.org/10.3390/nu13041219] [PMID: 33917145]
[PMID: 25476082]
[http://dx.doi.org/10.1186/s41100-018-0158-7]
[http://dx.doi.org/10.1016/0026-0495(92)90146-2] [PMID: 1736038]
[http://dx.doi.org/10.1186/cc8172] [PMID: 19925648]
[http://dx.doi.org/10.1097/MCO.0000000000000037] [PMID: 24500444]
[http://dx.doi.org/10.1007/s12029-013-9497-3] [PMID: 23609166]
[http://dx.doi.org/10.1016/j.anl.2018.10.007] [PMID: 30442437]
[http://dx.doi.org/10.1007/s00520-015-2824-4] [PMID: 26105516]
[http://dx.doi.org/10.1186/1475-2891-11-52] [PMID: 22824168]
[http://dx.doi.org/10.12688/f1000research.17376.1] [PMID: 31069055]
[http://dx.doi.org/10.1186/s13613-019-0618-4] [PMID: 31900667]
[http://dx.doi.org/10.1007/s00101-011-1951-7] [PMID: 22006117]
[http://dx.doi.org/10.5455/aim.2014.22.406-410] [PMID: 25684851]
[http://dx.doi.org/10.1111/j.1542-4758.2012.00679.x] [PMID: 22360675]
[http://dx.doi.org/10.1007/s10741-006-9195-3] [PMID: 16819580]
[http://dx.doi.org/10.1196/annals.1320.007] [PMID: 15591005]
[http://dx.doi.org/10.1161/HYPERTENSIONAHA.109.132522] [PMID: 19620516]
[http://dx.doi.org/10.1016/j.amjcard.2008.07.022] [PMID: 18993165]
[http://dx.doi.org/10.1007/s00726-010-0770-5] [PMID: 20963457]
[http://dx.doi.org/10.1159/000301075] [PMID: 20530934]
[http://dx.doi.org/10.2165/00002512-200320100-00004] [PMID: 12875611]
[http://dx.doi.org/10.1038/sj.ejcn.1602109] [PMID: 15741989]
[http://dx.doi.org/10.1212/WNL.41.11.1726] [PMID: 1944900]
[http://dx.doi.org/10.1038/bjc.1995.482] [PMID: 7577464]
[http://dx.doi.org/10.3109/08941939.2015.1029652] [PMID: 26270147]
[http://dx.doi.org/10.1155/S0962935193000754] [PMID: 18475570]
[http://dx.doi.org/10.1155/S0962935193000766] [PMID: 18475572]
[http://dx.doi.org/10.1248/bpb.19.157] [PMID: 8820932]
[http://dx.doi.org/10.1016/0022-3468(95)90321-6] [PMID: 7472953]
[http://dx.doi.org/10.1016/S0261-5614(96)80038-0] [PMID: 16844016]
[http://dx.doi.org/10.1007/s00394-012-0470-x] [PMID: 23223967]
[http://dx.doi.org/10.1111/j.1475-097X.1984.tb00811.x] [PMID: 6432422]
[http://dx.doi.org/10.1001/jamanetworkopen.2018.6076] [PMID: 30646314]
[http://dx.doi.org/10.1164/ajrccm-conference.2020.201.1_MeetingAbstracts.A2604]
[http://dx.doi.org/10.1021/acs.jproteome.8b00774] [PMID: 30895797]
[http://dx.doi.org/10.1002/phar.2448] [PMID: 32688453]
[http://dx.doi.org/10.1177/014860718801200129] [PMID: 3343797]
[http://dx.doi.org/10.1177/0897190018782012] [PMID: 29905091]
[http://dx.doi.org/10.1016/j.biocel.2012.05.021] [PMID: 22677491]
[http://dx.doi.org/10.2337/db06-1228] [PMID: 17682093]
[http://dx.doi.org/10.17576/jsm-2015-4410-09]
[http://dx.doi.org/10.3389/fcell.2014.00072] [PMID: 25566542]
[http://dx.doi.org/10.1016/S0891-5849(02)00961-9] [PMID: 12398925]
[http://dx.doi.org/10.1111/j.1542-4758.2010.00476.x] [PMID: 20812958]
[http://dx.doi.org/10.1152/ajpcell.00125.2016] [PMID: 27510905]
[http://dx.doi.org/10.1016/j.molmed.2019.05.008] [PMID: 31235369]
[http://dx.doi.org/10.3390/ijms21155358] [PMID: 32731518]
[http://dx.doi.org/10.1017/S1751731111001327] [PMID: 22436156]
[http://dx.doi.org/10.3892/mmr.2013.1378] [PMID: 23525196]
[http://dx.doi.org/10.1016/j.pharmthera.2018.05.013] [PMID: 29807055]
[http://dx.doi.org/10.1093/jb/mvaa129] [PMID: 33169143]
[http://dx.doi.org/10.14814/phy2.14641] [PMID: 33278072]
[PMID: 29845798]
[http://dx.doi.org/10.1196/annals.1320.019]
[http://dx.doi.org/10.1016/j.yrtph.2006.06.007] [PMID: 16901595]
[http://dx.doi.org/10.1038/ejcn.2009.36] [PMID: 19491916]
[http://dx.doi.org/10.1016/j.jpainsymman.2006.09.001] [PMID: 17157757]
[PMID: 11726261]
[http://dx.doi.org/10.1053/j.jrn.2018.08.014] [PMID: 30341034]
[http://dx.doi.org/10.4103/0972-5229.117054] [PMID: 24082613]
[http://dx.doi.org/10.1186/cc2858] [PMID: 15312213]