Epigenetics / Basics

What Is Epigenetics?

Brief info from University of Utah Health Sciences – excellent website for an  overview of genetics, which (if you’re like me) can be very confusing.

http://learn.genetics.utah.edu

As an organism grows and develops, carefully orchestrated chemical reactions activate and deactivate parts of the genome at strategic times and in specific locations. Epigenetics is the study of these chemical reactions and the factors that influence them.

Epigenetics and the Human Brain

Throughout our lives, the brain remains flexible and responsive. In addition to receiving signals from the outside world, the brain allows us to form memories and learn from our experiences. Many brain functions are accompanied at the cellular level by changes in gene expression. Epigenetic mechanisms such as histone modification and DNA methylation stabilize gene expression, which is important for long-term storage of information.

Not surprisingly, epigenetic changes are also a part of brain diseases such as mental illness and addiction. Understanding the role of epigenetics in brain disease may open the door to being able to influence it. This may lead to the development of new and more effective treatments for brain diseases.

And now for the bad news: worth watching!

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