Professor Barbara Sahakian who led the study at the BCNI said: “We feel these results are extremely important since they show that people who have poor concentration improve with methylphenidate (Ritalin) treatment whether they have a diagnosis of adult ADHD or not. These new findings demonstrate that poor performers, including healthy volunteers, were helped by the treatment and this improvement was related to increases in dopamine in the brain.”
Each cell can only deal with one X chromosome working. For males that's not a problem, but females need to choose between their two Xs: one from father, the other from mother. But the precise mechanism for this is still a mystery.
Scientists have now cross-bred two strains of mice: one with green X chromosomes and the other with red. Imaging the different cells in their offspring is helping to reveal unusual patterns. The image below shows the retinas of one mouse: from the left and the right. Yet as far as the X chromosome is concerned, they are almost completely from two different mice.
The role of animals in treating diabetes
A history of Insulin
Image Credit: Understanding Animal Research
Why we need to stick with research through the ups and downs
- Understanding Animal ResearchScience Writer, 2013 - present
- University of CambridgePhD Student, 2009 - 2013
- Royal Society of ChemistryScience Writer Intern, 2012 - 2012
- University of Cambridge2009 - 2013
- University of Oxford2005 - 2009
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