genetic disease

Not Exactly Pocket Science is a set of shorter write-ups on new stories with links to more detailed takes by the world's best journalists and bloggers. It is meant to complement the usual fare of detailed pieces that are typical for this blog. Geneticist sequences own genome, finds genetic cause of his disease If you've got an inherited disease and you want to find the genetic faults responsible, it certainly helps if you're a prominent geneticist. James Lupski (right) from the Baylor College of Medicine suffers from an incurable condition called Charcot-Marie-Tooth (CMT) disease, which…
The new study identifies 27 loci that have rare copy number variations, where there are more or fewer repeated DNA segments than expected, common to the genomes of several children with autism spectrum disorder. These variations are not present in controls without autism spectrum disorder. The peer reviewed paper is available in the Open Access journal PLoS Genetics. The sample included 2,832 individuals distributed among 912 families that had multiple autistic children. The control group consisted of 1,070 samples of disease-free children who presumably are not clustered from a smaller…
I only know about Phenylketonuria (PKU) because it is an elementary example of an autosomal recessive disease. Newborns are routinely tested, because those with PKU may develop mental retardation on a normal diet. That's about all I knew, but this from Wikipedia: If PKU is diagnosed early enough, an affected newborn can grow up with normal brain development, but only by eating a special diet low in phenylalanine for the rest of his or her life. This requires severely restricting or eliminating foods high in phenylalanine, such as meat, chicken, fish, nuts, cheese, legumes and other dairy…
Masha Gessen was faced with a terrifying choice: cut off her breasts, and possibly save herself from cancer, or use them to feed her child. It was late at night when I walked back to my empty dorm room at the conference. Shivering, I stood on the narrow bed, quickly shut the windows, tore the blankets off the other bed, and wrapped myself up, trying to get warm. Too cold to sleep, I picked up my copy of Masha Gessen's "Blood Matters: From Inherited Illness to Designer Babies, How the World and I Found Ourselves in the Future of the Gene," expecting boredom to lull me into unconsiousness…
In which we're reminded that database searches are experiments, too. One of the trickiest things with bioinformatics experiments is repeating them. This challenge isn't related to the validity of the original results, the challenge is that, unless you made your own database and kept it in the same state, the database that you'll be using at a later time, sometimes even a day later, is a different database. And, if you query a different database, you may get a different result. The series that I'm currently posting is one that I started working on a couple of years ago. Originally, I was…
How do you go about researching a genetic disease? This multi-part series explores how digital resources can be used to learn about Huntingtin's disease. Reposted and updated from the original DigitalBio. A bit of backgroundAlice's Restaurant is a movie with an unforgettable song that mostly revolves around Arlo Guthrie hanging out with his friends. Somewhere in the movie, the conversation turns to Woody, and someone asks the question that no one wants to touch. Does Arlo's girlfriend know about Huntington's? ...dead silence... Now, I did see the movie quite a few years ago, so my memory…