By Alyssa Gutierez, Jin Kyu Lee, Mariana Paspuel and Mirkka Puente (Group 2)

Posted in Outreach Project, Science Communication
Adverse life experiences during childhood can leave ‘marks’ in DNA. Source: Parents Magazine
Traumatic or adverse experiences during early childhood are associated with ‘genetic tagging’, referred to as DNA methylation, and its possible applications range from developmental psychology to forensics.
DNA is characterized as having four nitrogenous bases – biological compounds containing nitrogen – which are cytosine, adenine, guanine, and thymine. DNA methylation is when another organic compound, called a methyl group, is added to cytosine.
DNA methylation is when a methyl group (circled) is added to a cytosine base in the DNA. Source: Wikipedia
Segments of the DNA which code for specific proteins are referred to as genes. DNA methylation affects the frequency that genes are coded, or ‘expressed’. Ultimately, the mechanism inhibits the expression of genes.
Existing research have probed into how adverse episodes experienced in early childhood are related to repressed genes due to DNA methylation. Factors such as lack of nutrition, exposure to microbes and social environments have been shown to be associated with the methylation of genes regulating inflammation in the body. Inflammation is the response of the immune system to potential pathogens whenever there is an infection or injury. This response is characterized by symptoms such as swelling, redness or pain.
Other studies have found that DNA methylation was present in subjects who have experienced sexual abuse during childhood.
While the current state of knowledge regarding adverse childhood experiences and DNA methylation is based on correlation, such area serves as a promising avenue in detecting early stages of psychiatric disorders. Schizophrenia, major depressive disorder (MDD) and autism spectrum disorder are only some of the major psychiatric disorders that are influenced by genetics and environmental factors. Given that DNA methylation is also heavily influenced by such factors, future research may be able to discover if there is a link between the biomarking mechanism and the development of these disorders.
Aside from early detection of psychiatric and developmental disorders, DNA methylation can also aid in criminal investigations.
“Methylation is starting to be viewed as a potentially useful tool in criminal investigations – for example, by providing investigators with an approximate age of a person who left behind a sample of their DNA,” said Dr. Michael Kobor, a professor in the Department of Medical Genetics at UBC.
You can view the UBC press release about his research on child abuse and DNA methylation here.
– Alyssa Gutierrez
We have lost the art of thinking creatively, and it can hurt our chances in career success.
Undoubtedly, STEM (Science, Engineering, Technology, and Mathematics) education is becoming increasingly prevalent. According to a 2016 census by the Government of Canada, several provinces have considerably high percentages of STEM graduates. Among those provinces, Quebec had the highest proportion of STEM graduates (63.2%), while Newfoundland and Labrador, and Alberta closely followed (57.7% and 55.7%, respectively).
However, STEM students have raised several concerns regarding the current state of education in these fields. A specific issue that was brought up was the lack of focus on the development of critical skills – one of which was creative problem-solving. A 2016 report by Science & Policy Exchange emphasized that critical skills are “transferable across work environments, academic or otherwise, and are therefore vital for success”. Therefore, a deficiency in creative problem-solving skills may prove to be detrimental for a prospective job candidate in STEM disciplines, especially in a job market that grows increasingly competitive each day.
Creative problem-solving skills are not developed overnight; they result from many years of development. Yet, there seems to be less emphasis on this skillset, especially within the school system.
Source: adobe.com
Invention literacy has the potential to catalyze the development of creative STEM thinkers, but we have to start early.
Jay Silver, the pioneer of the Invention Literacy movement, describes the latter as “the ability to read and write human made stuff, from toaster to apps”. Moreover, there is a “grammar to inventing”, and a “literature of inventions” that can spark the creation of our own inventions. Just as scientists review existing literature to help shape their own studies, inventors can turn to past inventions, such as a car or a hammer, and create something out of it. Invention literacy is the ability to take a piece of man-made object and decompose it to the smallest functional parts.
Jay Silver, pioneer of the Invention Literacy movement, talks about the core concepts of the initiative: observing the surrounding world and redesigning it.
Video: “Hack a Banana, Make a Keyboard!”
Source: ted.com
Invention literacy enables children to redesign the functionality of existing objects. Colleen Graves, a MaKey MaKey advocate, visits and works with numerous schools in developing research projects with the following question: “‘How does ____ work and can I make my own version of it?’” This question motivates children to take ownership of their learning experience. Children are encouraged to use their observations about the world and test out theories of how it works – something that is essential for building up strong STEM thinkers.
Video: “MaKey MaKey – An Invention Kit for Everyone”
Source: youtube.com
Invention literacy also pushes educators to be innovative with their approaches to teaching. For example, learning the fundamental skill of counting money is made more interactive by connecting the MaKey MaKey to a dime, a nickel, a quarter and a penny. It is then used to gather information from the user that is sent to a computer program.
Parents have also seen the firsthand effects of invention literacy – beyond its applications to problem solving. Melissa Taylor, a mother and former elementary-school teacher, described the positive outcomes that resulted from using the MaKey MaKey:
“Not only did my daughter practice her scientific method skills, she also grew a head taller in confidence.”
– Alyssa Gutierrez
Posted in Science Communication
Tagged creativity, education, electronics, engineering, Future, invention literacy, MaKey MaKey, Public Engagement, science, STEM, technology
Alyssa Gutierrez