Alcohol addiction is not a death sentence

Alcohol addiction is not a death sentence

Scientists at the University of Massachusetts Medical School have just made a stunning discovery: alcohol addiction can be controlled by a very small group of neurons - only about 500 brain cells. Understanding how this works opens up the prospect of new treatments that could be much more targeted and effective.

These studies have been conducted mostly on mice - using methods such as optogenetics, optometry, electrophysiology and single-cell transcriptomics. Thanks to these approaches, it was possible not only to identify the neurons responsible for the development of alcohol addiction, but also to influence their activity with light - that is, to activate or deactivate them.

One key question is whether similar groups of neurons exist in humans. Several facts indicate that the human brain and the rodent brain have much in common in terms of general structure and function, especially in the reward and motivation systems. If similar neural groups are confirmed in humans, treatment could become less traumatic and more specialized.

Another discovery from the research is that the amygdala of the brain plays an important role in the formation of craving for alcohol. This is a small structure under the temporal lobe, which has long been associated with emotions, memories, fear and pleasure reactions. The altered structure of the amygdala and its response to stimulation can affect how a person reacts to alcohol cues - advertising, smell, memories.

This discovery has major implications for therapy. Instead of treating alcohol addiction "broadly" - that is, with drugs that affect a large array of brain tissue - it becomes possible to use point-based therapy methods. This can be stimulation (for example, magnetic or electrical) or influence through genetic methods - focused only on neurons critical for addiction.

However, it is important to note: at present, these mechanisms have been studied mainly in animals. Human studies have yet to confirm whether the same groups of neurons play a similar role, and whether they can be safely manipulated in humans. If so, new methods could significantly improve the quality of life for addicts and reduce the damage alcohol does to the brain.