By Isra Uz-Zaman, Genetics ’14
Cheating in sports in not a new phenomenon. In the modern era, numerous athletes participate in blood doping by injecting erythropoietin (EPO) into their blood to increase the amount of red blood cells and thus improve their athletic performance. EPO is a protein hormone produced by the kidney which stimulates the production of red blood cells when released into the bloodstream. Increased red blood production increases the amount of oxygen available in the body and boosts an athlete’s performance. Yannis Pitsiladis, a psychologist in Scotland, is at the forefront of developing anti-doping testing based on the genetic fingerprint left by drugs. Conventionally researches developed tests to find the drug, but Pitsiladis has taken another approach. He is developing a new generation of tests that will gather evidence from the doper’s own body.
Continue reading Stop Looking for the Drug. Look at the Genes – Bulletproof Anti-doping Test
By: Varsha Prasad, Genetics ’15
A study to employ a new method of generating human embryonic stem cells without destroying any human embryos is currently being conducted by an international research team led by Karl Tryggvason, Professor Medical Chemistry at Karolinska Institutet and a Professor at Duke-NUS Graduate Medical School in Singapore.
The researchers developed a method in which embryonic stem cells can be obtained from a single cell of an eight-cell embryo, which can then be refrozen and placed in the woman’s uterus. This prevents the need to destroy human embryos in the process. The idea is that the embryo can survive a single cell removal. Continue reading New Method Increases Supply of Embryonic Stem Cells
By Ashley Chang, Genetics ’15
Researchers at the GEOMAR Helmhotltz Centre for Ocean Research Kiel are studying the long-term effects of “climate engineering” methods that could help to preserve the climate and protect from rising temperatures. This winter every part of the world except the eastern United States reported record breaking high temperatures. Although political agreements have been made to reducing greenhouse gas emissions, the effects may be too slow as levels of CO2 and other greenhouse gases continue to rise. This is especially important as populous countries, such as China and India, become increasingly industrialized and consequentially raise their greenhouse gas emissions. Continue reading Climate Engineering: Worth the Risk?
By Ashley Chang, Genetics ’15
Biostatisticians led by Knut Wittkowski at Rockefeller University Hospital have employed new methods of genome-wide association studies to identify genes that they believe to be associated with autism. The researchers compared genomes of patients with varying degrees of autism to healthy patients and were able to identify genetic variations that seem to be linked to the pathology of neural development in young children. The technique used to identify these genes is unique. Rather than traditional genome association, which searches for single nucleotide polymorphisms (SNPs), this new method looks for combinations of several SNPs that are common in patients with a disease. Wittkowski also compared this new autism profile to patients with childhood epilepsy and found mutations in similar genes that control axonal guidance and calcium signaling. Both of these are important in the developing brain to ensure that the correct connections are made. Continue reading Genome-Wide Association Identifies Genes Linked to Autism