According to a new study published in ACS Omega, cannabidiol (CBD)-loaded hydrogel strongly inhibited Staphylococcus aureus, a bacterium responsible for many skin and soft-tissue infections, while remaining noncytotoxic to human skin cells. The researchers also developed a cannabinol (CBN) version that provided sustained cannabinoid release, although it did not show the same antibacterial effect. The …
Category: Cannabis Studies
Peer-reviewed studies covering cannabis and cannabis compounds.
Study Finds CBD Inhibits Dental Plaque Bacteria and Biofilm Formation
A new study found that cannabidiol (CBD) significantly inhibited the growth and biofilm formation of Streptococcus oralis, a bacterium involved in the early development of dental plaque, while maintaining the viability of human gum cells at the concentrations tested. The study, published in the International Journal of Dentistry, was conducted by researchers from Laval University …
Study Identifies 227 Cannabis Terpenes and Details Why Cultivars Smell So Different
A new study has identified 227 terpenes in cannabis and mapped the genes that help determine why different cultivars develop their own distinct aromas and terpene profiles. The study, published in Acta Pharmaceutica Sinica B, combined genetic sequencing, terpene measurements, gene-expression analysis and laboratory testing of individual enzymes. Researchers say the work provides the most …
Over 300 Important Cannabis Studies Published in 2026
Below is a breakdown of over 300 cannabis-related studies published in 2026. The title of each entry links to a full article covering the study, with each article also including a link to the study itself. Cannabis Flower Extracts Inhibited Multiple Alzheimer’s-Related Enzymes and Protected Cells From Damage Cannabis flower extracts inhibited three enzymes involved …
Systematic Review Finds CBD Produces Antidepressant-Like Effects
A new systematic review found that cannabidiol (CBD) produces antidepressant-like effects, potentially through multiple biological mechanisms involving neuroplasticity, inflammation and neurotransmitter signaling. The study, published August 7 in the Pará Research Medical Journal, was conducted by researchers from Universidade Anhembi Morumbi in Brazil. Researchers reviewed experimental studies published during the previous five years examining CBD …
Study Finds CBN and CBG With Melatonin Enhance Chemotherapy Against Glioblastoma Cells
A new study found that the marijuana compounds cannabinol (CBN) and cannabigerol (CBG), when combined with melatonin, produced synergistic effects against human glioblastoma cells and significantly enhanced the effectiveness of a commonly used chemotherapy drug. The study, published in the International Journal of Molecular Sciences by researchers primarily from the University of Camerino in Italy, …
Review Finds Hemp May Alter Gut Microbiota and Reduce Harmful Bacteria in Livestock
A new scientific review finds that hemp-derived feeds and cannabinoids may influence gut bacteria, fermentation and intestinal health in livestock, with some studies reporting increases in beneficial bacteria, reductions in E. coli and lower methane production. The review, published in Advances in Animal and Veterinary Sciences, was conducted by researchers affiliated with Bingol University and …
Randomized Clinical Trial Finds Inhaled Marijuana Associated With Fewer Irregular Heartbeats
Inhaling marijuana was associated with a modest but statistically significant reduction in certain irregular heartbeats among regular cannabis users, according to a new randomized clinical trial. The study, published in the Journal of the American College of Cardiology, involved researchers from the University of California and examined the acute cardiovascular effects of inhaled cannabis. Researchers …
Study Finds Cannabis Extracts Inhibit MRSA
A new study found that extracts from two cannabis strains inhibited methicillin-resistant Staphylococcus aureus (MRSA), with researchers saying the findings could provide a foundation for developing new treatments targeting the drug-resistant bacteria. The study, published in the South African Journal of Botany, was conducted by researchers at the University of Limpopo in South Africa. Researchers …
Placebo-Controlled Trial Finds Men and Women Experience Similar Effects From Smoked Marijuana Regardless of THC Potency
Men and women experienced largely similar acute effects after smoking marijuana across THC potencies ranging from 6.25% to 22%, according to a new placebo-controlled study published in Psychopharmacology. Researchers with the Centre for Addiction and Mental Health and University of Toronto examined 35 adults, including 18 females and 17 males, who reported using marijuana one …
