Answer: Tenex is a medication usually used for ADHD so if the person with Prader-Willi has that certainly. The syndrome is also associated with an insatiable appetite so they may be looking at that as well.
Answer: From my understanding, prader-willi syndrome is a condition whereby the person has no ability to control what is eaten. It is a disorder of the brain and causes persons to eat paper, erasers, etc. They have no conception of when to stop eating food as well. As a result, food has to be locked up to keep them from overeating. I worked with a student who had this condition, and she also had a tumor on her brain that was removed. I have absolutely no idea if the two are related. My best advice is to ask a doctor who specializes in this type of syndrome.
Answer: Not in the scientific sence as the genes are not located on the sex chromosomes.It can rarley be caused by genes from the father mutating as the equivolent genes from the mother are almost silent due to gene imprinting. So in a more general sence it may be associated with the gender of the parent from whom deleted gene copys were recieved.
Answer: No cure yet. Therapies to improve muscle tone and feeding techniques to improve weight gain. Strict control of food intake to prevent obesity (growth hormone therapy improves muscle tone). Special education.
Answer: Generally speaking, Prader-Willi Syndrome is not inherited. It is a random error/mutation to the 15th chromosome that occurs at conception. In around 70% of the cases, the mutation is a deletion (or microdeletion) of some of the genes on the 15th chromosome. In around 25% of the cases the error/mutation occurs because the baby gets 2 15th chromosomes from the mom instead of one from mom and one from dad, and since the genes that impact the symptoms of PWS should come from the dad if the child has 2 sets from the mom the genes are silent and therefore it is the same as though they were missing/deleted. In the rarest of cases PWS is caused by an imprinting error which can either occur randomly at conception or be passed from the father (who would not have PWS himself)....again this last kind is extremely rare.
See Sources and Related Links for the Prader-Willi Syndrome Association (USA) and more detailed information.
Answer: Prader-willi syndrome occurs due to genetic mutation, it is believed that parents with a genetic abnormality, uneffected by the syndrome, pass the mutation to their children. Some studies suggest that the syndrome is due to missing genes in the paternal chromosome, but it may be a combination of both parents.