1 DNA and proteins are key molecules of the cell nucleus. 2  One gene makes one protein. 3  A gene is made of DNA. 4  Bacteria and viruses have DNA too. 5  The DNA molecule is shaped like a twisted ladder. 6  A half DNA ladder is a template for copying the whole.  RNA is an intermediary between DNA and protein.
1 Another theory holds that depression may directly damage the brain, leading to dementia. âSimply put, chronic stress and/or depression may result in the release of cortisol,â Gorman says. Over time, this stress hormone can harm the brain, she says.  A third theory points to reduced brain volume.
Alzheimer Dementia-related Depression. 7.5 mg/day PO qHS; increase by 7.5-15 mg/day no more frequently than q1-2Weeks; not to exceed 60 mg/day. Dosing Considerations. The elderly have reduced clearance of mirtazapine and, as a result, may have increased plasma levels of the drug.