I have an aunt in the nursing home for dementia. It's very sad. I never would've guessed her to have depression, but the oddest thing is that I think she may have went through MLC. She was married for over 25 yrs to her first husband. Divorced him, but always kept his number handy. She married another man...divorced him too. Then she moved to our state and her first husband did too. He lived maybe 30 miles from her. He went to see her when she went in the nursing home, but by then, she didn't want him there...didn't want him to call. Not sure what has happened since then, but she has gone down hill ever since she was diagnosed with the dementia.
From the limited reading I have done on dementia, they can also get it from excess alcohol, which could also be possible for her. It would also make sense with the connection between alcohol and depression.
Very interesting.