DNA Methylation

How stress can change your DNA

A first link between chronic stress, genetics, and mental illness has recently observed in mice. Researchers have discovered that the genes of mice exposed to chronic stress change over time. Modifications were most associated with genes related to a variety of mental illnesses, such as depression, autism spectrum disorder, and schizophrenia.1-3 How exactly are genetics, stress, and mental illness related? DNA, serves as instructions for cells and is broken up into … Continue reading How stress can change your DNA

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The Hidden Genetic Code

by Amir Bitran figures by Daniel Utter Proteins, the molecules that sustain all life, are similar to cars and other machines in an important way: they require a specific, well-defined structure to function. Obviously, a random pile of car parts cannot be driven. And similarly, a protein that is not assembled correctly cannot perform crucial tasks like producing energy, supporting cell structure, and generating electric signals. In … Continue reading The Hidden Genetic Code

Human egg cell about to undergo in vitro fertilization [Image: ‘Oocyte with Zona pellucida’ from ZEISS Microscopy]

It’s a boy! Baby is born with DNA from three “parents”

  A now five-month-old boy was the first child to be born via spindle nuclear transfer, a controversial fertilization procedure that incorporates genetic material from three different people.  Most of our genes are located in the DNA found in a cell’s nucleus, but a few reside in tiny compartments called mitochondria.  While rare, mutations in mitochondrial DNA can result in devastating disorders that often cannot … Continue reading It’s a boy! Baby is born with DNA from three “parents”