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Brain protein linked to alcohol tolerance identified

Wednesday - June 6, 2018 5:58 pm , Category : DIASPORA
New York June 6 (IANS) Scientists including one of an Indian-origin has identified a brain protein linked to a person s alcohol tolerance a finding which may one day pave way for "cure" of people suffering from alcoholism.
The team has found that the brain protein called MUNC 13-1 plays a pivotal role in the development of tolerance to alcoholism.
"Addiction to alcohol remains one of the most significant mental health problems throughout the world. A major challenge is to understand how ethanol or alcohol changes behavior and the brain during the descent into addiction " said Joydip Das from the University of Houston in Texas.
Das explained that developing tolerance is a critical step in that descent.
"If a person becomes tolerant of one drink he will have another and maybe another. If we could stop alcohol from binding into MUNC 13-1 it will help problem drinkers in reducing tolerance. If we can reduce tolerance we can reduce addiction " he noted.
According to the study published in the journal eNeuro the process of MUNC 13-1 binding to alcohol takes place in a brain synapse where one nerve cell or neuron passes a signal to another.
During binge alcohol exposure alcohol creates widespread and long-lasting changes in neural activity altering both presynaptic and postsynaptic activity.
For the study the team developed a genetic model system in fruit flies creating an activating protein called Dunc13 the equivalent to MUNC 13-1.
"Reduction in Dunc13 produces a behavioural and physiological resistance to sedative effects of ethanol. That makes MUNC 13-1 an important target for developing drugs.
"We need to develop a pill that would inhibit alcohol binding to MUNC 13 and reduce its activity. Based on our results so far this would likely reduce the formation of tolerance making it harder to become addicted to alcohol " he said.

--IANS sh/rt/vd