bipolar family history

May the family has a history of Parkinson's, Tourettes, bipolar disorder and borderline now. Is there any correlation?
I suspect there are some thread genetic. Is there anyone who can point me to a website, or give me some idea about it?
The common thread we have here is that all these disorders occur in the brain, although Parkinson's is the only one not listed in the DSM IV. Parkinson's obvious physical symptoms, therefore not considered a mental illness. However, in addition to physical symptoms, can cause mood disorders. People with bipolar disorder often have other mental illnesses, and the most BPSD common. Below are two links: one is for Parkinson addresses mental illness that may occur due to illness. The other is a site of Tourette explaining what other conditions may accompany it. I wish you luck and hope to find some answers to the many questions I'm sure are running through his head.
Childhood Bipolar Disorder (4 of 15)