- About About
Medical Patient Resources Cannabis Care Certification Patient's Guide to Medical Cannabis Patient's Guide to CBD Talking to your doctor Become a Legal Medical Marijuana Patient The Medical Cannabis Patient’s Guide for U.S. Travel Guide to Using Medical Cannabis Cannabis Tincture, Salve, Butter and Oil Recipes Arthritis and Medical Cannabis Cancer and Medical Cannabis Chronic Pain and Medical Cannabis Gastrointestinal Disorders and Medical Cannabis HIV/AIDS and Medical Cannabis Movement Disorders and Medical Cannabis Multiple Sclerosis and Medical Cannabis Aging and Medical Cannabis Veterans and Medical Cannabis Medical Marijuana Conditions in Your Area Growing Cannabis Tracking Treatment & Gathering Data with Releaf App Medical Professional Resources Medical Cannabis Continuing Medical Education (CME) Cannabis Safety Medical Cannabis Research
- Legal Legal
Advocacy ASA Chapters Start an ASA Chapter Take Action Campaigns No Patient Left Behind End Pain, Not Lives Vote Medical Marijuana Medical Cannabis Advocate's Training Center Resources for Tabling and Lobby Days Strategic Planning Civics 101 Strategic Messaging Citizen Lobbying Participating in Implementation Movement Building Organizing a Demonstration Organizing Turnout for Civic Meetings Public Speaking Media 101 Patient's History of Medical Cannabis
Policy Policy Positions Model Federal Legislation Download Ending The Federal Conflict Public Comments by ASA Industry Standards Guide to Regulating Industry Standards Recognizing Science using the Data Quality Act Data Quality Act Briefs Fact Sheet on ASA's Data Quality Act Petition to HHS ASA Data Quality Act petition to HHS Information on Lawyers and Named Patients in the Data Quality Act Lawsuit Reports 2021 State of the States Cannabis and Cannabis Resin- Critical Review Preparation Document Medical Cannabis in America
- News News
- Join Join
A cannabis folk remedy has been resurrected by scientists who found that active ingredients in the drug reduce allergic reactions.
The research, conducted on mice, points the way towards new cannabis-based treatments for irritated skin.
Extracts from the hemp plant were traditionally used to treat inflammation and could be bought from chemists in the early part of the 20th century.
But fears about the intoxicating effects of tetrahydrocannabinol (THC), the chemical that causes the cannabis high, led to a ban on sales in the 1930s.
The new research suggests that the herbalists who used cannabis ointments to treat eczema knew what they were doing.
Scientists now believe that cannabis skin lotion, in a safe form too diluted to affect the brain, could make a comeback. The team from the University of Bonn in Germany stumbled on the anti-inflammatory effect of THC while conducting a brain study on mice. The animals were genetically engineered so they could not respond to cannabinoids, either THC or its natural equivalents generated in the brain.
Unexpectedly, the skin around ear clips placed on the mice to identify them became red and sore.
The scientists realised what this meant - that cannabinoids act like a brake, preventing the immune system from running out of control and triggering inflammation.
For 20 years scientists have known that the brain produces cannabinoids, but it has not been clear why.
They appear to have psychological effects, and influence bone growth. Another possible explanation now seems to be that they help regulate the immune system.
The German scientists confirmed their suspicions by dabbing THC ointment on the skin of mice exposed to allergens. Professor Thomas Tuting, a member of the team, said: "If we dabbed THC solution on to the animals' skin shortly before and after applying the allergen, a lot less swelling occurred than normal.
"The THC attaches itself to the cannabinoid receptors and activates them. In this way, the active substance reduces the allergic reaction."
He said the amount of THC needed to treat skin allergies would be far too small to produce intoxicating effects.
Another option was to develop drugs which prevented the breakdown of natural cannabinoids in the brain.