Hi
I understand you concern.
Diabetes is one of the reason that lead to reversible type of dementia.
Sometimes it co morbid with Alzheimer then it become irreversible.
Brain neurins are very much prone to get affect by
oxidative stress and metabolites. which can be a part of different
metabolism of glucose and lipids.
Prevtnton os necessary rather then to reverse it.
Proper consultation will help.
Control blood sugar and lipids.
Control risk factor.
proper lifestyle modification and avoid smoking, alcohol etc will helpful.
Multivitamin and particular methylcobalamine with antioxidant will help.
Detail investigation will give more detail idea of etiology and treatment like MRI brain.
If it has sever
memory loss and registration problem then medicine like donepezil will helpful to stop further loss.
But it needs proper evaluation of mental functions.
Consult neurologist and get help.
I hope i have answered your query.
Feel free to ask.
Happy to help you.
Thank you.