Marijuana May Be Protective Against Injury, Study Says

Lausanne, Switzerland: The use of cannabis is not a contributing causal factor in injuries requiring hospitalization, and may even protect users against the likelihood of sustaining such injuries, according to the results of case-control study published online in the journal BMC Public Health.

Investigators at the Luasanne University Hospital in Switzerland assessed the association between the use of cannabis and/or alcohol and the risk of injury among 486 patients aged 16 and older.

Investigators reported: “Alcohol use in the six hours prior to injury was associated with [an elevated] relative risk compared with no alcohol use. Cannabis use was inversely related to risk of injury.”

Researchers also analyzed subjects’ drug use for the time period exactly one week prior to the patients’ hospitalization. They reported, “More patients reported alcohol use in the six-hour period prior to injury (case period) than in the corresponding six-hour period the previous week (control period). … For cannabis, fewer people reported use prior to injury (case period) than in the control period.”

Despite the study’s relatively small sample size, investigators concluded: “The results for cannabis use were quite surprising. … The present study in fact indicated a ‘protective effect’ of cannabis use in a dose-response relationship.”

Commenting on the study’s results, authors speculated that “cannabis is consumed in relatively safer, low risk environments” (e.g., at home) compared to alcohol, which is often consumed at bars or prior to going out in public.

A prior case-control study conducted by the University of Missouri also reported an inverse relationship between marijuana use and injury risk, finding, “Self-reported marijuana use in the previous seven days was associated … with a substantially decreased risk of injury.”

For more information, please contact Paul Armentano, NORML Deputy Director, at: paul@norml.org. Full text of the study, “Alcohol and cannabis use as risk factors for injury – a case-crossover analysis in a Swiss hospital emergency department,” is available online from BMC Public Health at: www.biomedcentral.com/1471-2458/9/40.

Junk Food may lead to Alzheimer’s symptoms

Reuters – Mice fed junk food for nine months showed signs of developing the abnormal brain tangles strongly associated with Alzheimer’s disease, a Swedish researcher said. The findings, which come from a series of published papers by a researcher at Sweden’s Karolinska Institutet, show how a diet rich in fat, sugar and cholesterol could increase the risk of the most common type of dementia. “On examining the brains of these mice, we found a chemical change not unlike that found in the Alzheimer brain,” Susanne Akterin, a researcher at the Karolinska Institutet’s Alzheimer’s Disease Research Center, who led the study, said in a statement. “We now suspect that a high intake of fat and cholesterol in combination with genetic factors … can adversely affect several brain substances, which can be a contributory factor in the development of Alzheimer’s.