what does l'carnitine do Didn't another study show carnitine was good for the heart? L-Carnitine For Fatty Liver [NAFLD]

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The crossing of these cellular barriers is essential for the development of the IMD, and although it has been intensively studied, it remains not fully understood

Their protective functions include reducing paracellular permeability, boosting innate immune responses against pathogens, and consolidating the physical barrier provided by the mucous layer (163)

Lippincott-Raven, 1997, pp 127-175