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Genetic discrimination

Discrimination based on specific gene mutations

Genetic discrimination occurs when people treat others (or are treated) differently because they have or are perceived to have a gene mutation(s) that causes or increases the risk of an inherited disorder. It may also refer to any and all discrimination based on the genotype of a person rather than their individual merits, including that related to race, although the latter would be more appropriately included under racial discrimination. Some legal scholars have argued for a more precise and broader definition of genetic discrimination: "Genetic discrimination should be defined as when an individual is subjected to negative treatment, not as a result of the individual's physical manifestation of disease or disability, but solely because of the individual's genetic composition." Genetic Discrimination is considered to have its foundations in genetic determinism and genetic essentialism, and is based on the concept of genism, i.e. distinctive human characteristics and capacities are determined by genes.

Genetic discrimination takes different forms depending on the country and the protections that have been taken to limit genetic discrimination, such as GINA in the United States that protects people from being barred from working or from receiving healthcare as a result of their genetic makeup. The umbrella of genetic discrimination includes the notion of informed consent, which refers to an individual's right to make a decision about their participation in research with complete comprehension of the research study.

Within the United States, genetic discrimination is an ever-evolving concept that remains prominent across different domains. Emerging technology such as direct-to-consumer genetic tests have allowed for broad genetic health information to be more accessible to the public but raises concerns about privacy. In addition, the COVID-19 pandemic has exacerbated difficulties of those with genetic conditions as they have faced discrimination within the U.S. healthcare system.

The idea of genetic discrimination has been combated since the 1947 Nuremberg Code that was created shortly after WWII, during which thousands of racialized and disabled victims died in tests conducted in Germany. Since then, new issues of racialized genetic discrimination have come to light involving sharing of genetic information to genomic biobanks and subsequent novel treatments. Many countries are still developing policies to combat genetic discrimination in science, law, and everyday life.

02Global instruments

The Universal Declaration on the Human Genome and Human Rights (1997), the International Declaration on Human Genetic Data (2003) and the Universal Declaration on Bioethics and Human Rights (2005) are global instruments drawn up by the International Bioethics Committee of UNESCO.

03Genetic testing in the workplace

Some people have genes that make them more susceptible to developing a disease as a result of an occupational exposure. For example, workers with beryllium sensitivity and chronic beryllium disease are more likely to carry the gene HLA-DPB1 than workers without these conditions. By offering optional genetic testing to workers and allowing only the workers to see their own results, employers could protect genetically susceptible individuals from certain occupational diseases. A beryllium manufacturing company initiated a pilot program to test prospective workers for the HLA-DPB1 gene at a university-based laboratory. The company paid for the testing and counseling but received results that did not identify which workers had the gene.

In 1991, the American Medical Association Council on Ethical and Judicial Affairs suggested that the following five conditions must be satisfied in order for genetic screening by an employer to be appropriate:

  • The disease must develop so rapidly that monitoring would be ineffective in preventing it.
  • The genetic test is highly accurate.
  • The genetic variation results in an unusually elevated susceptibility to occupational illness.
  • Undue expense is needed to protect susceptible workers by lowering the level of the toxic substance in the workplace.
  • The worker must provide informed consent prior to being tested.

Several occupational health screening measures similar to genetic testing are already taking place. For example, in 1978, DuPont reported testing African American applicants for sickle cell trait and restricted these workers from exposure to nitro and amino compounds. However, research indicates that workers or applicants would not take advantage of genetic testing due to fear of discrimination. A 1995 poll of the general public found that over 85% are concerned about access to use of genetic information by insurers and employers. Likewise, in the case of the beryllium manufacturer described above, so few workers participated in the genetic testing that the company decided instead to pursue an "enhanced preventive model of workplace controls."

04Race

Some cases have found statistical evidence of genetic differences between human populations, such as mutations within the Duffy blood group. Yet research looking at 109 genetic markers across 16 populations by Guido Barbujani "does not suggest that the racial subdivision of our species reflects any major discontinuity in our genome". As genomic research continues to investigate human genetic variation on a large scale, racial genetic discrimination remains a concern for many.

Linking genetic conditions and treatments to race

State governments in the United States have attempted to combat racial discrimination by barring instances of discrimination by insurers that involve linking specific genetic conditions to race, such as the sickle cell trait in African Americans. Further, therapeutic interventions or treatments based on genetic variants associated with race can sometimes be inaccurate and lead to negative health outcomes. An example of this has been doctors prescribing an improper dosage of a drug called warfarin prescribed to African American populations, despite research disproving they require a higher dose than white populations. The medical community recognizes that genetic variants, such as predisposition to drug metabolism among others, make up only one facet of a person's health, which is also impacted by their environment and lifestyle.

Genetic privacy

In addition, many individuals are concerned with their genetic privacy and worry that they will face discrimination based on their genetic information. These worries may include loss of confidentiality, risk of information being shared with insurance providers, risk of genetic samples being used without their consent, and health-based discrimination more broadly.

Genomic biobanks

Contributing to genomic biobanks can be an additional source of concern for minority populations. Biobanks are collections of biological samples which can include blood, tissue, or DNA from many people. Despite the utility of biobanks to furthering genomic research, minority groups fear that their samples may be used improperly or even be used to strike down an entire culture. Such was the case when genetic samples were taken from the Havasupai people, a Native American tribe in Arizona. They consented for their samples to provide insight into the prevalence of diabetes in their community, but did not consent to them to investigate links to schizophrenia or provide evolutionary genetic analysis to discredit the tribe's origin beliefs. Misuse of genetic data may create long-lasting distrust towards the medical community.

Diversity in genomics

Some efforts have been made to use genetic testing for reconciliation projects involving people of African descent, which attempt to make social reparations based upon genetic genealogy. Though genetic ancestry testing can be a valuable source of information for those seeking connections to their heritage or recognize a new identity, African Americans may feel coerced into genetic testing or unknowingly face discrimination. Participants also have very little control over how their data will be used, including within the medical sphere or the criminal justice system. As such, increased circulation of genetic genealogical data may be harmful for African Americans.

As minority populations are hesitant to contribute their DNA to genomic research, there continues to be a lack of inclusive health information being disseminated and incorporated in medical treatments. Genomic research has been predominantly based upon DNA samples with European heritage, which fails to holistically and accurately describe the complexity of all people's genetics.

Other confounding factors related to diversity such as age, gender, or socioeconomic status may also influence genetic discrimination in addition to race.

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Sources and credits

This article is adapted from the Wikipedia article Genetic discrimination, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

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