The LEAF Jan/Feb 2016 | Page 13

Unfortunately, by the time symptoms arrive; much of the damage has already been done. As   Fox   explains:   “By   the   time   my   pinky   started twitching, 80% of the dopamine cells were already  dead.”  Since  the  exact  cause  of   Parkinson’s   is   unknown,   the   many   treatments available merely control the symptoms. In many instances, patients can even develop tolerances to medication. As time   passes,   Parkinson’s   medications   lose   efficacy and symptoms return. None of this bodes well for PD patients. Fortunately, cannabis research might have some great news. How   Can   Marijuana   Soothe   My   Parkinson's   Symptoms?   …It may sound surprising, but using cannabis to ease tremors been done before. Two centuries ago. Doctors prescribed cannabis Indica tincture to   Parkinson’s   patients   in   the 19th century. Long before scientists knew about dopamine and its effect on motor function, cannabis tinctures were given to patients to ease constant trembling. Dr. Raphael Mechoulam is the man who discovered how THC interacts with the endocannabinoid system. Now, over 150 years later, science may just back   up   our   ancestor’s   early   findings.   The   endocannabinoid system (ECS) may play a part in the development of PD. The ECS is the largest cell receptor system in our bodies. When  we  say  “largest  receptor  system”,  we   mean it. The ECS helps regulate everything from our immune system and mobility, to our   appetite   and   memory.   That’s   a   lot   of   ground to cover! In a 2010 review of Parkinson’s studies, researchers confirmed that the ECS was affected as dopamine cells died. Dopamine is manufactured deep near the centre of the brain. The study found that the brain cells in this region are covered with cannabinoid receptors. Namely, the CB1 receptor. The CB1 receptor is where   cannabis’s   psychoactive THC binds in the brain. Our bodies also produce natural chemicals that bind with these receptors. These chemicals are called endocannabinoids. As early as 2000, researchers found that levels of these chemicals skyrocket when the ability to move muscles is lost. These findings present strong evidence that a  potential  treatment  for  Parkinson’s  might   lay somewhere in the endocannabinoid system. This idea is supported by a 2011 study published by Spanish scientists at the Complutense University of Madrid. The results were promising: THC may help limit the progression of the disease. http://www.thestonerscookbook.com/article/2015/09/17/cannabis-and-parkinsons-disease/