My favourite data visualization blog just published a nice infographic about the difference between research cloning and reproductive cloning. Click on the image for full version.
Posts from the ‘genetics’ Category
23andMe is a direct-to-consumer genetic company that also launched the 23andWe project in which they tried to use the data they obtain from patients in studies. Now the results are published in PLoS Genetics.
Despite the recent rapid growth in genome-wide data, much of human variation remains entirely unexplained. A significant challenge in the pursuit of the genetic basis for variation in common human traits is the efficient, coordinated collection of genotype and phenotype data. We have developed a novel research framework that facilitates the parallel study of a wide assortment of traits within a single cohort.
The approach takes advantage of the interactivity of the Web both to gather data and to present genetic information to research participants, while taking care to correct for the population structure inherent to this study design.
Here we report initial results from a participant-driven study of 22 traits. Replications of associations (in the genes OCA2, HERC2, SLC45A2, SLC24A4, IRF4, TYR, TYRP1, ASIP, and MC1R) for hair color, eye color, and freckling validate the Web-based, self-reporting paradigm. The identification of novel associations for hair morphology (rs17646946, near TCHH; rs7349332, near WNT10A; and rs1556547, near OFCC1), freckling (rs2153271, in BNC2), the ability to smell the methanethiol produced after eating asparagus (rs4481887, near OR2M7), and photic sneeze reflex (rs10427255, near ZEB2, and rs11856995, near NR2F2) illustrates the power of the approach.
Although it’s a great example for how the online data can be used for scientific purposes, it does raise some questions about patient privacy.
Have you ever had problems with understanding what GINA, the Genetic Information Nondiscrimination Act, is really about? Anyway, this is a U.S. federal legislation that protects Americans from discrimination on the basis of genetic information. According to Spittoon:
The Genetic Alliance, the Genetics and Public Policy Center at the Johns Hopkins University, and the National Coalition for Health Professional Education in Genetics have created an online resource to help people better understand the protections GINA provides. This information is available in English and Spanish at www.GINAhelp.org.
You can find out more about genetic information, GINA and health insurance; also GINA and employment.
Here are some interesting news and announcements to keep you absolutely up-to-date regarding the improvements of personalized medicine.
There are a number of reasons why DTC genetic testing may soon find itself subject to increased federal regulatory oversight. However, 23andMe’s widely publicized data error should not be one of those reasons. In fact, the sample swap, while unfortunately timed, actually presents a compelling argument in favor of the direct-to-consumer model for genetic testing.
A personalized medicine study from the Coriell Institute for Medical Research suggests that patients who undergo genetic testing are more likely to change their personal habits, writes Emily Singer at the Technology Review Editors’ blog.
- Have you seen the Genome Alberta Facebook page?
Stanford University School of Medicine today said that it will offer a new course that gives medical and graduate students an option to study their personal genotype data. The university said that it believes it is the first medical school to offer students such a course. However, the University of Pennsylvania School of Medicine offered its fourth-year medical students a similar course in personalized medicine this past year.
- DNA As Crystal Ball: Buyer Beware (Newsweek): A genome-wide association study identified a new gene variant associated with Alzheimer’s disease but it turned out clinically it’s not useful.
“Adding these genes to traditional risk factors, such as age and sex, does nothing to aid prediction” of whether someone will develop Alzheimer’s, she told me. “Knowing your genetic status will not help. We may still be in the Stone Age when it comes to gene-based prediction.”
- Breaking: Congress to Investigate DTC Genetic Testing (Genomics Law Report): A really detailed and interesting review.
The United States House of Representatives Committee on Energy and Commerce today launched an investigation into direct-to-consumer (DTC) genetic testing, sending letters to three prominent DTC companies: 23andMe, Pathway Genomics and Navigenics.
- Technology to Print Ingredients Onto Pharma Tablets (Medgadget): Printing of pharmaceutical ingredients directly onto tablets is becoming a reality.
- 23andme: A detailed review of the data the blogger just received from 23andMe.
- Family Spends $200,000 To Have Their Entire Genome Mapped (The Medical Quack)
The family said they received no medical counseling here and are making their own conclusions. One comment made is that the parents stated they will probably be using more pharmaceuticals, interesting.
A patient analyzes her own 23andMe data:
- Sequencing your genome just got cheaper (Genetic Future): The $1000 era is coming fast…
What we were all afraid of finally happened. 23andMe admitted that it swapped some samples in the lab. Even if these things happen in labs, it should really not happen in such a sensitive area. We, bloggers and geneticians, have been writing about how hard it is for patients to analyze and interprete their direct-to-consumer genetic results properly and how hard it is for this market to remain attractive despite all the criticisms. And now they swap samples. Daniel MacArthur at Genetic Future has a nice review about all the related articles and news.
For example, a mother posted her recent story on the 23andMe community:
Still upset I checked family inheritance and noticed my daughter shared with me, and then I checked my son’s. He was not a match for any of us. I checked his haplogroup’s and they were different from ours. I started screaming. A month before my son was born two local hospitals had baby switches. I panicked and I checked over and over. My kid’s were sitting at the computer because we all wanted to see the results. My son laughed but he looked upset. I called my sister in tears.
Here is the full 23andMe announcement:
We recently determined that a number of new 23andMe customer samples were incorrectly processed by our contracted lab. We want to clarify what happened with the sample errors, how it happened and what we’re doing to prevent it from happening again. Providing each and every one of our customers with accurate data is 23andMe’s number one priority, and we fully realize the gravity of this incident.
Up to 96 customers may have received and viewed data that was not their own. Upon learning of the mix-ups, we immediately identified all customers potentially affected, notified them of the problem and removed the data from their accounts. The lab is now concurrently conducting an investigation and re-processing the samples of the affected customers and their accurate results will be posted early next week. We expect the investigation will be complete over the next several days and we will provide further details when we have them.
We are currently putting additional procedures in place that will add an extra layer of safeguards to help assure that similar incidents do not occur in the future. We are deliberating on a process that would include removing manual steps at the lab, completely automating the sample analyses, and implementing further checks of the data before it gets loaded into customer accounts. Please be assured that our testing laboratory’s processes comply with strict professional, regulatory, and corporate quality assurance standards for ensuring that all laboratory test results are accurate. The laboratory will adopt corrective action as warranted based on the findings of the investigation.
The science behind 23andMe’s personal genetics service remains proven and sound. We recognize that this is a very serious issue and your trust is of the utmost importance. We hope that this helps clarify what has happened and what we are doing to prevent these problems in the future. Please contact me at firstname.lastname@example.org if you have any further questions. We appreciate your comments and feedback.
I cannot wait to hear what you have to say, Steve!
I’ve been writing about personal genomics for years. The standard concept of it is that you can order such genetic tests online, send your saliva or buccal swab to the lab where they analyze your DNA, then you can check online what kind of diseases you have elevated or lowered risk for. That’s how Navigenics, 23andMe or Pathway Genomics works. Now Pathway had a major announcement:
San Diego based startup Pathway Genomics announced today that it will begin selling its DNA collection kits at Walgreens drugstores beginning in mid-May, for about $20 to $30. Unlike a pregnancy test, users won’t be able to get results immediately. They will have to send in their saliva sample and then go to Pathway’s website to select the particular test they want. Users choose from drug response ($79), which assesses how well an individual can metabolize certain drugs, predicting the best dosage for that person or whether they will be susceptible to certain side effects; pre-pregnancy planning ($179), which determines whether parents carry mutations for serious genetic diseases; health conditions ($179), which assesses risk for a number of conditions, including diabetes, Alzheimer’s, prostate cancer and more; or a combination of all three ($249). The kits won’t be sold in New York because the state’s laws require medical professionals to be involved in this type of testing.
As you may know, I’m not totally against direct-to-consumer genetic testing, but I really would like to see doctors and genetic counselors in this process. I think selling such kits through drugstores can only happen in the US right now.
Well the Genomics Law Report blog has an extended and very detailed review about this important topic. An excerpt:
What has changed is their visibility. It is just possible that one of the safest strategies for avoiding regulation – out-of-sight, out-of-mind – played a significant role in the regulation (or lack thereof) of DTC genetic testing. Tests once predominantly available only to early adopters capable of seeking them out online will now begin to appear on the shelves of thousands of neighborhood drugstores nationwide. To a greater degree than ever before, genetic testing will soon be available to mainstream America (and subject to the impulse buy). And that, for better or for worse, may be all that it takes to convince some regulators that the time for action is finally at hand.
I’ve recently come across Scitable, a Nature initiative, that aims to bring together a library of scientific overviews with a worldwide community of scientists, researchers, teachers and students.