Tag Archives: Gene

Did your “stress genes” affect on your SAT scores?

 

This is an article that I read a while ago which described the effects of COMT gene and its function in clearing dopamine in the brain that is often released as a result of a stress response. There are two variants of the COMT gene: one which clears dopamine at a faster rate and another one which is a slower acting version. Usually, people with the slow variant do better on cognitive tests in the laboratory. However, under surges of stress, such as high-stake tests, when the brain is flooded with dopamine, researchers found that those with the slower variant were at a disadvantage. In Taiwanese national exams, students with the slow variant scored an average of 8 percents lower. “It was as if some of the A students and B students traded places at test time.”
What do you think about the influence of stress on your performance in school and other tests. Personally, I would love to know my COMT polymorphism in addition to ACTN gene. New genetics lab @ rafakoko?

link to the article:

http://www.nytimes.com/2013/02/10/magazine/why-can-some-kids-handle-pressure-while-others-fall-apart.html?pagewanted=all

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Discovery of A New Leukemia Oncogene

Discovery of New Leukemia Gene

The molecular cause of many cancers associated with blood remains unclear. However, using deep sequencing techniques, scientists at the Oregon Health & Science University were able to identify mutations in colony-stimulating factor 3 receptors (CSF3R) in 16 of 27 patients (59%) with chronic neutrophilic leukemia or chronic myeloid leukemia. These mutations caused alterations in kinase signaling pathways (JAK and TNK2). The discovery could serve as a new tool for diagnosing leukemia in patients.

http://www.nejm.org/doi/full/10.1056/NEJMoa1214514

http://www.sciencedaily.com/releases/2013/05/130510102111.htm