Published in the journal Aging and Mechanisms of Disease on Friday, the study said tetrahydrocannabinol and other compounds found in pot can help to remove toxic clumps of amyloid beta from nerve cells, media reported.The finding supports the results of previous studies that cannabinoids have protective effects on patients with neurodegenerative diseases.The study carried out by the California-based Salk Institute for Biological Studies, is likely to be the first to demonstrate that cannabinoids affect both inflammation and amyloid beta accumulation in nerve cells, led researcher David Schubert said.