Depression, Cannabis, and… Your Immune System?

Cannabis has long been known to be a mood improving substance. In fact, this quality has contributed to its use as a recreational drug. As a result, it’s not surprising to read that the endocannabinoid system, which controls our bodies’ responses to cannabis, is being investigated in connection to treating depression. What is surprising, however, is the specific way it seems to be involved. Readers might never suspect that the immune system and the endocannabinoid system might be cohorts in the genesis of depression. Wait, back up – the immune system? What does that have to do with depression? Apparently something large. First, recent meta-analyses of immune-related experiments provide strong support for a link between immune dysfunction and depression. Statistically speaking, patients with major depressive disorder (MDD) also show higher levels of several inflammatory signaling proteins. While this could simply indicate association rather than cause (for instance, simply that patients with malfunctioning immune systems have health consequences that lead to depression), the most interesting evidence here is that researchers have specifically observed a positive relationship between depressive symptoms and amount/dose of inflammatory molecules over a widespread population. The fact that depressive symptoms are dose-dependent to immune signaling molecules seems to suggest some sort of causality. Finally, patients suffering from chronic viral infections, who as a result have to take drugs like IFN-alpha (an immune and inflammation boosting cytokine), often develop depression at the onset of such medication with a rate upwards of 30 percent! Unfortunately, depression comes in many forms…

Sacramento Cannabis Cup Winners 2012

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