It simply hasn't been tested, so it sits alongside the other explanations rather than above them
In addition, OCTN2 protein was detected in exosomes released from HEK293 cells [166], indicating that carnitine and its derivatives may be transported between cells through exosomes, a finding that provides new insights into the role of carnitine and its transporters in exosomes and their functions in intercellular communication and pathological processes
Cost remains a major barrier in many markets, with monthly prices in the US ranging from $500 to over $1,000, and insurance coverage often limited to patients with diabetes
10.1038/s12276-022-00818-9 10 BaiX.YanY.CanfieldS.MuravyevaM
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Micrographs are representative images of three independent experiments