Charles Rotimi

Charles Nohuoma Rotimi (born 1957) is the Director of the Trans-National Institutes of Health (NIH) center for research in genomics and global health. He works to ensure that population genetics include genomes from African populations and founded the African Society of Human Genetics in 2003. Rotimi was instrumental in the launch of the Human Heredity and Health in Africa (H3Africa) with the NIH and the Wellcome Trust. He was elected to the National Academy of Medicine in 2018.

Charles Rotimi
Rotimi interviewed by the NHGRI Oral History Collection in 2017
Born
Charles Nohuoma Rotimi

1957 (age 6364)
Alma materUniversity of Benin (BS)
University of Mississippi (MS)
University of Alabama at Birmingham (MPH)
University of Alabama at Birmingham (PhD)
AwardsElected to the National Academy of Medicine (2018)
Scientific career
InstitutionsHoward University
Loma Linda University
Loyola University Chicago
National Institutes of Health
ThesisA follow-up study of mortality and a nested case-control study of stomach cancer among foundry and automobile engine manufacturing plant workers (1991)
Websiteirp.nih.gov/pi/charles-rotimi

Early life and education

Rotimi was born in Benin City, Nigeria, and is the second oldest of six children.[1] His mother had no education and his father was a high school English teacher.[1] Rotimi studied at the University of Benin and graduated in 1979.[2][3] He led the chemistry lab at a high school in Benin.[1] He decided to attend graduate school abroad, and applied to universities in the United Kingdom and United States.[1] He was supported by his family to attend the University of Mississippi, where he studied health care administration.[1] He flew from Nigeria to Mississippi via London, including catching a helicopter from Gatwick Airport to Heathrow Airport.[1] While studying at the University of Mississippi, Rotimi met his wife Deatrice, who was from Chicago. He graduated with a master's degree in 1983.[1] In 1985 he returned to Nigeria and was appointed an administrator at a local health ministry. He returned to America to complete a program in epidemiology at the University of Alabama, and was awarded a full scholarship to complete a doctorate.[1] Rotimi completed his PhD and then spent a year as a postdoc at the Loma Linda University in California. Here he worked on Alzheimer's disease.[1]

Research and career

Rotimi investigates genetics and health disparities, ensuring that African genomes are represented in genome databases.[4][5] He was appointed as an epidemiologist at Loyola University Chicago, where he worked on cardiovascular disease and obesity in people in the African diaspora.[1] Together with his colleague Richard Cooper, Rotimi recruited 10,000 people to study the prevalence of hypertension in populations of West African descent.[4] He found that hypertension and diabetes rates are significantly higher in African-American populations in Chicago than they are in rural Africa. He attributed this to lifestyle factors, including weight, salt consumption and levels of physical activity.[4]

Rotimi moved to Howard University in 1990, where he worked with Georgia M. Dunston at the National Human Genome Center. Rotimi was promoted to head of genetic epidemiology.[1] Here he studied the impact of the underrepresentation of African and African-American data in genomic datasets.[1] He argued for the use of genomic tools to understand variation in human biology, but pointed out that it is not possible to use genetics to define race; the variation in genomes do not account for the socially defined racial groups and racial self-identity.[6][7] He compiled genomic data from 6,000 people in 13 language families, identifying 21 global genetic ancestries.[1] The study established that 97 % of people have mixed ancestry, emphasising the problems with labels such as hispanic, black and white.[8][9] In an interview with The Lancet, Rotimi described inequality as "one of the most outrageous aspects of society".[2]

Rotimi led the African component of the International HapMap Project, which contributed to the 1000 Genomes Project.[1] He recruited three African communities in Kenya and Nigeria, ensuring that African genomes were part of the record.[1] It is understood that homo sapiens originated in Africa, leaving after 100,000 years.[1] During this time much of the genetic evolution had already occurred, and those that emigrated carried a subset of the original genetic diversity. African genomes are the most ancient.[1]

Rotimi looks at the heritability of complex disease.[10] He began to work with Kári Stefánsson in 2007, studying the diabetes risk variant TCF7L2 in West African populations.[11] He demonstrated that both TCF7L2 and its genetic variant HapA increase the risk of diabetes due to their function in energy metabolism. To determine the origins of the sickle cell disease mutation, Rotimi studied the genomes of 3,000 people.[1] He identified that sickle cell emerged around 7,000 years ago in Africa.[1]

Rotimi joined the National Institutes of Health in 2007, where he became founding director of the Trans-NIH Center for Research on Genomics and Global Health.[1][12][13] He works with Francis Collins on making genomic studies more inclusive.[1] Rotimi founded the African Society of Human Genetics in 2003.[14] He launched the Human Heredity and Health in Africa (H3Africa) initiative with the African Society of Human Genetics, a $70 million collaboration between the National Institutes of Health and Wellcome Trust.[12][15] He described the project as a "lifetime achievement".[2]

Awards and honors

Rotimi was elected a member of the National Academy of Medicine (NAM) in 2018.[16] He serves on the editorial boards of Public Health Genomics, Genome Medicine, Clinical Genetics and the Journal of Applied and Translational Genomics.[12] He was awarded the Curt Stern Award from the American Society of Human Genetics in 2019 for his contributions to genetics in African and African-descent populations.[17]

References

  1. "Genome Collector: A Profile of Charles Rotimi". The Scientist Magazine®. Retrieved 2019-05-08.
  2. Morris, Kelly (2010-10-23). "Charles Rotimi: engaging Africa in human genomic research". The Lancet. 376 (9750): 1383. doi:10.1016/S0140-6736(10)61943-5. ISSN 0140-6736. PMID 20971351. S2CID 8083562.
  3. "Charles N. Rotimi, Ph.D." genome.gov. NHGRI. Retrieved 2019-05-08.
  4. Cooper, R; Rotimi, C; Ataman, S; McGee, D; Osotimehin, B; Kadiri, S; Muna, W; Kingue, S; Fraser, H (February 1997). "The prevalence of hypertension in seven populations of west African origin". American Journal of Public Health. 87 (2): 160–168. doi:10.2105/ajph.87.2.160. ISSN 0090-0036. PMC 1380786. PMID 9103091.
  5. EDT, Jessica Wapner On 7/18/18 at 9:01 AM (2018-07-18). "Cancer scientists have ignored African DNA in the search for cures". Newsweek. Retrieved 2019-05-09.
  6. Rotimi, Charles N. (2004-10-26). "Are medical and nonmedical uses of large-scale genomic markers conflating genetics and 'race'?". Nature Genetics. 36 (11s): S43–S47. doi:10.1038/ng1439. ISSN 1546-1718. PMID 15508002.
  7. Keita, S. O. Y.; Kittles, R. A.; Royal, C. D. M.; Bonney, G. E.; Furbert-Harris, P.; Dunston, G. M.; Rotimi, C. N. (2004). "Conceptualizing human variation". Nature Genetics. 36 (11 Suppl): S17–20. doi:10.1038/ng1455. ISSN 1061-4036. PMID 15507998.
  8. Shriner, Daniel; Rotimi, Charles N.; Baker, Jennifer L. (2017-05-08). "Human ancestry correlates with language and reveals that race is not an objective genomic classifier". Scientific Reports. 7 (1): 1572. Bibcode:2017NatSR...7.1572B. doi:10.1038/s41598-017-01837-7. ISSN 2045-2322. PMC 5431528. PMID 28484253.
  9. Lawrence, David (2004-11-20). "A rational basis for race". The Lancet. 364 (9448): 1845–1846. doi:10.1016/S0140-6736(04)17459-X. ISSN 0140-6736. PMID 15565745. S2CID 42384457.
  10. Visscher, Peter M.; McCarroll, Steven A.; Mackay, Trudy F. C.; Haines, Jonathan L.; Gibson, Greg; Eichler, Evan E.; Clark, Andrew G.; Boehnke, Michael; Whittemore, Alice S. (2009). "Finding the missing heritability of complex diseases". Nature. 461 (7265): 747–753. Bibcode:2009Natur.461..747M. doi:10.1038/nature08494. ISSN 1476-4687. PMC 2831613. PMID 19812666.
  11. Stefánsson, Kári; Rotimi, Charles; Kong, Augustine; Gulcher, Jeffrey R.; Thorsteinsdottir, Unnur; Pedersen, Oluf; Hebebrand, Johannes; Sigurdsson, Gunnar; Christiansen, Claus (2007). "Refining the impact of TCF7L2 gene variants on type 2 diabetes and adaptive evolution". Nature Genetics. 39 (2): 218–225. doi:10.1038/ng1960. ISSN 1546-1718. PMID 17206141. S2CID 10529476.
  12. "Principal Investigators". NIH Intramural Research Program. Retrieved 2019-05-08.
  13. "Center for Research on Genomics and Global Health | NHGRI". genome.gov. Retrieved 2019-05-08.
  14. "About – AfSHG – African Society of Human Genetics". Retrieved 2019-05-08.
  15. "Human Heredity and Health in Africa (H3Africa) – AfSHG – African Society of Human Genetics". Retrieved 2019-05-08.
  16. "National Academy of Medicine Elects 85 New Members". nam.edu. National Academy of Medicine. 2018-10-15. Retrieved 2019-05-08.
  17. "ASHG Honors Charles Rotimi & Sarah Tishkoff with 2019 Curt Stern Award | ASHG". www.ashg.org. 22 July 2019. Retrieved 2019-07-25.
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