From the Journals

Gene therapy offers new way to fight alcohol use disorder


 

FROM NATURE MEDICINE

The future of treatment

Ongoing research could lead to more treatments, and make them more available and more appealing.

Unlike many other drugs that work on a single receptor in the body – like opioids that target opioid receptors, or nicotine, which targets choline receptors – alcohol affects many different receptors, said Robert Swift, MD, PhD, a professor of psychiatry and human behavior at Brown University, Providence, R.I. It also penetrates cells at high doses.

“There are so many different effects of alcohol, which makes it very hard to treat,” he said. “But on the other hand, it gives us an advantage, and there are probably different points that we can attack.”

Other exciting developments are underway, although more research, including clinical trials in humans, is needed before they arrive.

Some of the most promising:

  • Hallucinogens. In the 1950s, before they became illegal, these drugs helped people drink less. Even Bill Wilson, cofounder of Alcoholics Anonymous, used hallucinogenic treatment in his recovery; it helped him envision overcoming a challenge. Today, there is renewed interest in hallucinogens for alcohol use disorder. In a study published in , people with alcohol use disorder who were given the hallucinogen psilocybin along with therapy spent fewer days drinking heavily over the following 32 weeks than people who received a different medication. Don’t try to do this yourself, though. “It’s not just taking a hallucinogen and having a trip,” Dr. Swift said. “It’s a therapy-guided session, so it’s a combination of using the hallucinogenic substance with a skilled therapist, and sometimes two skilled therapists, helping to guide the experience.”
  • Epigenetic editing. Alcohol exposure can affect the activity of a gene in the amygdala, a brain region involved in emotional processing. found that, by editing that gene in rats through an intravenous line of genetic material, they reduced the rodents’ drinking and anxiety.
  • Oxytocin. The so-called love hormone could help reset the dopamine system to make alcohol less appealing. “There are oxytocin receptors on dopamine neurons, and oxytocin makes your dopamine system more effective,” Dr. Swift said. In a from the Medical University of South Carolina, Charleston, mice injected with oxytocin didn’t drink during a stressful situation that could have otherwise led to relapse.
  • Ghrelin. This stomach hormone could help curb drinking. In a study published in , mice that received drugs that increased ghrelin reduced their alcohol intake.

A version of this article first appeared on WebMD.com.

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