Archive for June, 2010
Here at the DNALC, we work with a lot of bacteria. One bacteria in particular is a harmless strain of E. coli called MM294. This strain, a strain unable to survive outside of its broth and agar domain, is used commonly in our classrooms. As students visit us each year, many have the opportunity to work with the bacteria. Whenever I tell my students that they will be working with E. coli, I tend to be on the receiving end of much criticism.
E. coli gets a bad reputation and I understand that. My students immediately cringe and I know what goes More >
A recent study from Michigan State University claims to find a link between bipolar depression and hypertension (high blood pressure). Results of the study presented at the American Psychiatric Association’s annual meeting showed that the presence of hypertension may impact the severity of the bipolar patient’s disorder and that a diagnosis of hypertension becomes more prevalent the younger a patient is diagnosed with bipolar disorder. Bipolar disorder (also known as manic-depressive disorder) is a mood disorder characterized by the experience of manic episodes (which can entail feelings of high energy, racing thoughts, irritability or even optimism raised to at times More >
Most people know that smoking is a hard habit to kick because smokers become addicted to the nicotine and habit. Equally sad is the tendency of young adolescents to start smoking for social and psychological reasons.
In a turn-around of sorts, it may be comforting to know that cancers can become addicted, too. Cancer cells have many different genetic changes, as well as changes in the expression of genes that are not due to mutations called epigenetic changes. Although cancer cells do have many differences from normal cells, they are still very similar to normal cells, making it very difficult to More >
When your body enters sleep, your brain undergoes several sleep cycles, four to fives times a night. Each cycle has its own purpose. The cycles range from drowsiness and light sleep to deep sleep. After deep sleep, the body (or more technically the brain) will enter a stage called Rapid Eye Movement, abbreviated REM sleep. It is during this REM stage where many of our dreams happen.
Why do we dream? Many More >