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review of scientific and news articles on dna testing and popular genetics

Panel at Vancouver Diversity Conference Will Address Concepts of Ethnic Identity

Monday, January 23, 2012
Will explore theme of official and unofficial ethnic self-identification from perspectives of genetics, marketing and other disciplines

A team of professors has just submitted a proposal for a 90 minute panel discussion at the 12th International Diversity Conference in Vancouver, B.C., June 11-13, 2012.

We'll use this blog to announce updates and you may place comments here and link to it.

Title:
Perspectives on Ethnic Identity: Epigenetics, Marketing, DNA and Genealogy

Panelists:
Donald N. Yates, DNA Spectrum
Dr. Anne Marie Fine, Fine Natural Medicine
Elizabeth Caldwell Hirschman, Rutgers Business School
Teresa A. Panther-Yates, Paradise Valley Community College, Phoenix
Wendy D. Roth, University of British Columbia
Phyllis E. Starnes, DNA Consultants

Description
Genetics has transformed many of our notions of race, ethnicity and identity. How do people in North America's melting pot of emigrants admixed with indigenous and African slave descendants self-identify when naming their primary and ancillary ancestries for official and unofficial purposes? The fundamental question of who you are and what you claim to be will be raised from the perspectives of marketing and consumer studies, sociology and direct-to-the-consumer DNA testing, genealogy (with a focus on the ethnic group known as Melungeons), epigenetics and medical marketing, and the special case of American Indian Descendants and Partial Descendants.

Stream: Identity and Belonging; the Politics of Diversity; Globalisation
Presentation Type: 90 minute Colloquium in English
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Regulation Unlikely in Europe

Thursday, March 17, 2011
Personal genetics: regulatory framework in Europe
from a service provider's perspective


Keith A Grimaldi, Markus P Look, G Antonio Scioli, Juan Coll Clavero, Stathis Marinos and Tassos Tagaris

European Journal of Human Genetics 19, 382-388 (April 2011) | doi:10.1038/ejhg.2010.189

Abstract
The purpose of this article is to give an overview and discuss the relevant regulations in place, or under consideration, regarding healthcare-related personal genetics services in Europe – this is a rapidly evolving field and in most European Union (EU) countries the regulatory framework is not yet clear. The review will be framed from the perspective of potential service providers (companies, health services and practitioners, including medical, nutritional, complementary, etc), the growing number of which will need to be aware of potential regulatory hurdles existing now and that may arise in the future. The main conclusion from the survey is that strict regulations regarding practitioner-delivered personal genetic-testing services are unlikely to be enforced over the next 5 years in most EU countries, with the exception of Germany. There is broad-based, but by no means universal, support for a strong voluntary code of practice as an alternative to government regulations to protect consumers and to enable all stakeholders to recognise serious and reputable service providers. On the other hand, there are influential bodies calling for strict regulation. As genotyping costs rapidly fall, it is likely that it will become routine and a major challenge that does not seem to be addressed by current debate on regulations is the emergence of companies offering/selling personal genetic services based on a customer's pre-existing genetic results and therefore no actual laboratory testing involved.

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Are We Gazing into Crystal Ball or Navel?

Saturday, February 05, 2011
Science 4 February 2011:
Vol. 331 no. 6017 p. 547
DOI: 10.1126/science.1202571

Genome-Sequencing Anniversary

The Golden Age of Human Population Genetics 

By Molly Przeworski

Professor, University of Chicago, Chicago, IL, USA, Howard Hughes Medical Institute Early Career Scientist

Figure
N. KEVITIYAGALA/SCIENCE

The first draft of the genome provided the road map for the past decade of research in human genetics, allowing for the design of platforms that have been used to query variation in populations worldwide and helping to drive down the cost of sequencing by several orders of magnitude. Within years, tens of thousands of complete genome sequences will be available from humans and from extinct hominids, as well as from thousands of other species. Given the human mutation rate, we will soon know of variation among individuals at almost all sites in the genome. For population genetics, this ushers in a previously unimaginable opportunity to reconstruct the entire genealogical and mutational history of humans and pushes us against the limits of what we will be able to infer about the evolutionary and genetic forces that affected every region of the genome. Why are disease mutations present in human populations? What is the genetic basis of our cognitive and physiological adaptations? What was the sequence of demographic events that led to the colonization of the globe by modern humans? Stay tuned, and before long, we should know as much as genetic data alone can tell us.

Yes, we've heard exalted claims before, like 10 years ago, when the next phase of the Human Genome Project was to be devoted to the "conquest" of disease. How many diseases have been conquered in 10 years, after billions of research dollars? Guess. None. And as far as population genetics goes, the whole story of "classic" Darwinian evolution seems to be unraveling before our eyes with every passing month (except of course in textbooks and the creationist opposition, where it never changes). If we can't be sure about evolution, how can we decide what is true about early human migrations?

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DNA Was Invented by Watson and Crick in 1953, Right?

Wednesday, December 15, 2010

Wrong. According to a correction in Nature, it was discovered by Swiss physician Friedrich Miescher in 1869, nearly a hundred years before. James Watson, Francis Crick and the less often mentioned Rosalind Franklin were responsible for determining DNA's structure, a double helix shape.

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US, EU Move to Regulate Direct-to-Consumer Genetic Testing

Sunday, November 28, 2010

Discussion is accelerating in the United States and European Union to regulate private genomic testing that provides consumers medical information, according to Science magazine and the European Journal of Human Genetics. No mention is made in the reams of white papers about ancestry testing, but some of the pitfalls and bureaucratic morasses in the thinking about true genetic/medical testing are fairly ominous, if not silly.

"Although there has been speculation about the potential psychosocial harms of testing [that is, genomic medical testing], such as an increase in anxiety or encouragement of fatalistic behavior, there are, to date, few studies addressing these concerns," writes the reporters for Policy Forum in the Oct. 8 issue of Science. "The limited evidence tends to be reassuring, even for risk information associated with relatively serious ailments...however, the scope for potential harm from unnecessary or unproven treatment after genetic risk assessment is an important unstudied question" (pp. 181f.).

We commend scientists and physicians for finding a new field of study divorced from reality but have to wonder what they will do about ancestry testing once they have conquered and tamed Frankenstein's elder monster. We suggest the following guidelines:

  • Labeling on Internet sites and Zen Shopping Carts that explicitly states, "The claims for this ancestry product have not been evaluated by the U.S. Government Accountability Office (GAO), U.S. Federal Trade Commission (FTC), House Energy and Commerce Committee, Food and Drug Administration, National Institutes for Health or Department of Bioethics and Humanities, University of Washington School of Medicine, Seattle, WA 98195 USA."
  • Predictive ancestry information may be hazardous to your progeny.
  • No animal has been harmed in the production or clinical evaluation of this ancestry test.
  • If you discover you have ancestry you did not expect, take a deep breath. Then take a healthy dose of skepticism, followed by two aspirins and a glass of water.
We're waiting for the next gambit from the genius bar in Washington!
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VIEWPOINT: Personalized Genomic Information

Wednesday, February 03, 2010

Preparing for the Future of Genetic Medicine

Alan E. Guttmacher et al.

Nature Reviews Genetics 11, 161-65 (February 2010)

Four experts with different insights into the field of genomic medicine answer questions about the prospects for using this type of information. The issues range from scientific to ethical and logistical.

 

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Does deCODE's Bankruptcy Signal False Promise of Genetic Medicine?

Sunday, December 06, 2009
Future Shock or Future Letdown?

New York Times reporter and DNA author Nicholas Wade raised an interesting question in his report on the bankruptcy last month of Iceland's deCODE Genetics, which attempted to make it possible for an ordinary consumer to buy the latest applicable information on the connection between their personal genes and their personal disease risk. The article was titled "A Genetics Company Fails, Its Research Too Complex."

In the November 17 edition in the Science and Technology section, Wade wrote:  "The company's demise suggests that the medical promise of the human genome may take much longer to be fulfilled than its sponsors had hoped." But there may be more to the story. "The discovery that major diseases do not have any simple genetic pattern of causation has dealt a serious setback to the gene-hunting field as a whole," he added.

Signs of the deflation of the field of "gene hunting" over the past 10 years since the Human Genome Project was completed and the second phase of the HGP was announced as focusing on the "conquest" of disease are:

  • Discovery that genes are not found in continuous sequences or segments or even on the same chromosome.
  • Realization no DNA can be considered "junk DNA" and even "non-coding" loci have at least place-holder functions and hence their values are not neutral.
  • Greater respect for the role of environment in inheritance, including the nano-environments within the cell where DNA is stored and replicates.
  • Jumping the gun on numerous claims concerning genome-wide association studies in scientific journals like Nature and Science, and subsequent retractions by editors and authors.
  • Ever increasing sample sizes with ever increasing lack of robustness for the data and clarity for conclusions.
  • A push for extending genetic surveys to rare and under-represented populations, with few surprises in the analysis of the implications for medical research or consequent benefit for public health.
  • Diminishing returns on research investment (ROI) on nearly every front.
  • Not a single viable gene therapy product ever introduced.
  • Realization that only very rare genes are discoverable and selection usually takes care of them and extinguishes them over time; hence the bulk of medical research funds goes toward the rarest of cases and not widespread disease such as cancer or diabetes.
Harvard biology professor Richard Lewontin maintained as long ago as the 1960s, and continued to warn even on the eve of the completion of HGP I in 2000, that gene hunting was essentially a scientific fetish with little true power or efficacy. In 1992, he wrote "The Dream of the Human Genome" as a review article in response to The Code of Codes:  Scientific and Social Issues in the Human Genome Project, edited by Daniel J. Kevles and Leroy Hood, and seven other recently published books on the subject of genetics and medicine. The essay was reprinted in Lewontin's own book It Ain't Necessarily So (second edition, New York Review, 2001). 

I think it is time to elevate gene hunting to the danger of something beyond a harmless fetish for the members of a narrow profession or scientific sect. Its waste and failures have taken on the proportions of a national form of folly and collective denial. While huge expense and sensational efforts continue to be thrown away on the molecular biology revolution, the need to renovate our neglected infrastructure and reform political mechanisms goes unanswered. Resources that might be better allocated keep dwindling. The supposedly most advanced society in history turns a blind eye on such relatively easy measures of public health as universal health care and uncontaminated chemical-free food and water supplies. While geneticists continue to cackle about inch-sized strides in their progress toward scaling the distant peaks of genetic medicine we are slipping into the abyss of logical disconnects. 



Comments

naturopathic physician commented on 06-Dec-2009 02:34 PM

The area of personalized genomics for health intervention has not really panned out. For example, the BRCA 1 and BRCA2 genes were hailed with great fanfare a few years ago as causal agents of breast cancer. But the true percentage of BRCA 1 and 2 mutations contributing to breast cancer are between 5 and 10%, leaving an astounding 90-95% of breast cancer due to other environmental factors. It is those factors that bear looking into, not the "faulty" genes.

The available personalized SNP (single nucleotide polymorphism) panels that are available today for use without a physicians input, are leading people into unproven territory as the true associations between these SNPs and the disease they purport to contribute , is not supported by science.


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Iceland's deCODE Defunct

Saturday, November 28, 2009
Icelandic genomics firm goes bankrupt

Nature 462/401 
23 November 2009

In a report by Erika Check Hayden, the journal Nature gloated that the innovative personal genomics company deCODE Genetics went out of business, leaving the disposition of valuable genetic data unclear. "After struggling financially for years, the genomics company deCODE, based in Reykjavik, Iceland, filed for bankruptcy on 16 November," wrote Hayden, who follows the genealogy-and-genetics business beat for Nature. "The question now is whether other companies looking to commercialize genomics will follow the same path." 

DNAPrint of Sarasota, Fla., went down that path last February without even an obit in scientific journals.

But according to Kari Stefansson, deCODE's CEO, the fate of the data never was in play since it belonged to individuals who had their DNA tested at their own expense with the service lab of deCODE. The lab, Islensk Erfdagreining, continues to operate today "under the same data and privacy protections as ever, rooted in the Icelandic community and within a tried and tested regulatory environment," wrote Stefansson in a comment on the online report by Nature. 

Such an accidentally-on-purpose misunderstanding is more than sloppy science journalism or bad science. It reveals the fundamental hostility of academic geneticists and related disciplines to commercializing or even popularizing DNA. Geneticists should stop thinking they are doing God's work. They should give up the illusion that the great generality of humankind can only understand, profit from and benefit from their work if they, the scientific intelligentsia, condescend to allow it and specify the conditions and goals of its use. 

Those on the payrolls of governments and public institutions have received so much money they think now they can be governors -- governors of the applications of their research.
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Officious or Official Regulation?

Thursday, October 22, 2009
Council of Europe adopts protocol on genetic testing for health purposes

In a report so-titled by Laurence Lwoff in the European Journal of Human Genetics (2009) 17, 1374–1377, first published online in July, it was noted that the Council of Europe has weighed in on one of the most controversial areas of DNA testing, whole-genome sequencing and SNP testing to find genetic predisposition to disease for individual customers. Recent editorials in Nature have called for similar measures in the United States, which is home to 23&me and other companies offering such services.

So far, no regulatory proposals have been aimed at genetic ancestry testing, only medical and health-related screening. One of the warnings often raised in the public discussion on genetic testing for health purposes, however, is that results may confuse and unnecessarily alarm consumers--a criticism that could apply equally to ancestry services.  Another is that commercial research scientists and business operators may jump the gun with findings and peddle bad science, although critics admit that the state of knowledge on nearly every topic of interest to geneticists and medical researchers is in a constant state of flux. A finding about a gene for Alzheimer's will be trumpeted in the pages of a major journal one week only to be updated or withdrawn in the next. 
 
This being the case, one wonders when discoveries will ever be fit to be commercialized or made available to the public. Should science only serve scientists?

We have always maintained that the would-be regulators underestimate moderately educated people's ability to understand emerging science. They overestimate commercial companies' disregard for professional practices and responsible communications. Most of the measures under discussion will have the effect of denying people access to valuable information. Regulation will also hamper growth in a direct-to-the-consumer business with unimaginable promise for society at large. A home paternity test purchased at the corner drugstore may make all the difference in the life of a family. Discovery of varied ancestry through a DNA test can be an important factor in furthering a consumer's interest in other peoples and countries, in history, and ultimately in tolerance of others. DNA testing can help bring peace of mind but it can also help bring peace in the world. 

Many, if not most, of the innovative contributions to society by science have come from non-specialists. The scientific establishment is not oriented toward practical applications of knowledge. The Croatian inventor and engineer Nikola Tesla dropped out of college and never received any formal training. Driven entirely by his natural aptitude for learning, he patented some of the most important contributions to the birth of commercial electricity, including alternating  current (AC) electric power systems and the AC motor. His inventions helped usher in the Second Industrial Revolution. So far from being overpowered by the profit motive, he died penniless at the age of 86 in 1943. No government program or university gave him any support or assistance. Whatever else the Council of Europe deliberated about, we hope they were not cynical or self-important enough to discount the possibility there may be many more popular scientists like Tesla in Europe's future. Science and technology are increasingly becoming a way of life for millions of people around the world who do not happen to have an advanced degree. It is a positive sign that consumers are so eager to take responsibility for their own health they will use the latest innovations from genomics to gain knowledge and control. Scientists should be glad they have such an impact. They should not squander the respect they enjoy in our eyes with pedantic discussions about fixing something that is not broken.  

Isolated populations as treasure troves in genetic epidemiology:  the case of the Basques

Paolo Garagnani et al. (2009) in European Journal of Human Genetics 17: 1490-1494.

The Basques living on the western border between Spain and France are a unique population. "Basques" often comes up as a match in people's DNA Fingerprint results, often because (as is widely believed, at least) a people resembling Basques helped repopulate the British Isles after the last Ice Age. But Basques are not an isolate. This article proves they blend gradually into their closest neighboring populations in Spain and France so they are not a candidate population, as say the Finns are, for the study of disease associations. "Basques do not show the genetic properties expected in population isolates," according to the authors. On the contrary, as many previous studies suggest, the Basques have so much diversity among themselves they were probably the source of population diffusions in prehistory, not a backwater trap for inbreeding.
  
Comments

Anonymous commented on 22-Oct-2009 11:28 PM

This is most perplexing and sounds medieval. Does the Council of Europe think we are all children? Are they truly concerned that their citizens may become confused and alarmed? What planet are they living on currently? I suppose they are unaware (or have forgotten) that Darwin had a background in religion (how alarming). This is 2009 and the world is an alarming place. One gets rather used to it though after a number of years. There must be some other reason than this for their suggested protocol. Something truly alarming.


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