(2) Of, or relating to, a molecule having hydrophobic and hydrophilic regions. Many biomolecules are amphipathic: phospholipids, cholesterol, glycolipids, fatty acids, bile acids, saponins, etc. In fact, it is the amphipathic nature of phospholipids that they form bilayers in cell membrane.
1 Lewy body dementia symptoms vary from person to person and include changes that may increase over time such as: 2  The ability to think ranging from decreases in memory and judgment to severe dementia. 3  Unpredictable changes in cognitive functions.  Hallucinations.
In people with Down syndrome, changes in overall function, personality and behavior may be more common early signs of Alzheimer's than memory loss and forgetfulness. Early symptoms may include: 1  Reduced interest in being sociable, conversing or expressing thoughts. 2  Decreased enthusiasm for usual activities.