<Tr> <Td_colspan="2"> Infobox references </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> </Tr> <P> Inositol, or more precisely myo - inositol, is a carbocyclic sugar that is abundant in brain and other mammalian tissues, mediates cell signal transduction in response to a variety of hormones, neurotransmitters and growth factors and participates in osmoregulation . It is a sugar alcohol with half the sweetness of sucrose (table sugar). It is made naturally in human beings from glucose . Each kidney makes 2g a day; so 4g a day total is made . Other tissues synthesize it too, and the highest concentration is in the brain where it plays an important role making other neurotransmitters, and some steroid hormones bind to their receptors . </P> <P> myo - Inositol plays an important role as the structural basis for a number of secondary messengers in eukaryotic cells, the various inositol phosphates . In addition, inositol serves as an important component of the structural lipids phosphatidylinositol (PI) and its various phosphates, the phosphatidylinositol phosphate (PIP) lipids . </P>

What is the physiological role of inositol in the human body