A new study published by Plant Physiology from researchers at Leiden University in the Netherlands found that plant growth-promoting rhizobacteria, or PGPR, can colonize marijuana roots and meaningfully shift how the plant produces and preserves cannabinoids, including increasing the key precursor CBGA while reducing THC.
Category: Cannabis Studies
Peer-reviewed studies covering cannabis and cannabis compounds.
Study: Germany Marijuana Legalization Hasn’t Increased Driving While High
A new analysis published by The Lancet Regional Health – Europe found no significant short-term change in adult marijuana use or driving under the influence of marijuana in Germany in the months after the country legalized adult possession and home cultivation.
Study: CBD Reduces Inflammatory Lipid Build-Up in Visceral Fat Linked to Obesity
New research published in Scientific Reports finds that cannabidiol (CBD) may play a significant role in reducing early-stage inflammation tied to obesity by altering how inflammatory lipid compounds accumulate in body fat.
Study: THC Shown to Disrupt Cavity-Causing Bacteria and Dental Biofilms
A new study published in the International Dental Journal finds that tetrahydrocannabinol (THC), the primary psychoactive component of cannabis, significantly inhibits the growth and activity of Streptococcus mutans, the bacterium most closely associated with dental cavities.
Study Finds Cannabinoids like CBD and THC May Influence Liver Cancer Pathways Through Ion Channels
A new scientific review published in the journal Pathophysiology examines how cannabinoids—both those produced naturally in the body and those derived from the marijuana plant—interact with ion channels and signaling pathways involved in liver disease and hepatocellular carcinoma, the most common form of liver cancer.
Study: Veterans Say Marijuana Helps Manage Symptoms, but Many Avoid Discussing Use With VA Clinicians
A study published in the Journal of General Internal Medicine finds that many U.S. veterans who use marijuana for medical purposes view it as an essential tool for managing symptoms ranging from chronic pain and PTSD to anxiety and sleep disorders, yet often avoid discussing that use with their VA health care providers.
Study: Medical Cannabinoids Show Broad Neuroprotective Effects in Ischemic Stroke Models
A study published recently by the journal Frontiers in Neuroscience finds that medical cannabinoids demonstrate wide-ranging neuroprotective effects in various models of ischemic stroke, supporting growing interest in marijuana-derived compounds as potential therapeutic tools for acute brain injury.
Study: CBD May Help Overcome Drug Resistance in Leukemia Cells
A new study published by Global Medical Genetics reports that cannabidiol may influence drug resistance mechanisms in chronic myelogenous leukemia by reshaping exosomal microRNA signaling, particularly in cells resistant to the frontline leukemia drug imatinib. The research was conducted by scientists from Sofia University “St. Kliment Ohridski” and focused on how cannabidiol, imatinib, and their …
Clinical Trial Finds Cannabis Oil Matches Lorazepam for Treating Insomnia, Improves Quality of Life
A new randomized clinical trial published in Sleep Medicine: X finds that both a traditional Thai herbal remedy and cannabis sativa oil were just as effective as lorazepam in improving sleep quality among adults with chronic insomnia, while also delivering greater gains in overall quality of life.
Marijuana Extracts Rich in CBC and THC Show Anti-Cancer Activity Against Bladder Tumors, Says Study
A study published by the Asian Journal of Urology reports that certain marijuana-derived extracts including CBC and THC may have meaningful anti-cancer effects against bladder cancer cells, including the ability to slow cell migration and trigger cancer cell death. The research was conducted by scientists from Bar-Ilan University and Tel Aviv University in Israel, along …












