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Rasika Ann Mathias, Sc.D.

Associate Professor
Associate Professor of Medicine



  • Associate Professor
  • Associate Professor of Medicine

Centers & Institutes


Research Interests

Genetic epidemiology with emphasis on cardiovascular/asthma/lung disease and other chronic disease processes.


Dr. Rasika Mathias, ScD, is an Associate Professor of Medicine in the Division of Allergy and Clinical Immunology. She maintains a joint appointment in the Division of General Internal Medicine at the Johns Hopkins School of Medicine as well as the Department of Epidemiology at the Johns Hopkins Bloomberg School of Public Health. She is a formally trained Genetic Epidemiologist with a particular emphasis on the genetics of quantitative traits underlying disease phenotypes in the context of family-based designs and health disparities. She obtained her Bachelors of Science in Zoology at Stella Maris College in India and her ScM and ScD in Genetic Epidemiology at the Johns Hopkins Bloomberg School of Public Health. Dr. Mathias underwent her postdoctoral training at the National Human Genome Statistical Geneticist with an emphasis on quantitative trait genetics in the family based design and was recruited as an Assistant Professor of Medicine to The Johns Hopkins School of Medicine in 2009. Dr. Mathias is currently building a program on Next Generation Sequencing approaches to dissecting the genetics of complex diseases with an emphasis on populations of African ancestry focusing on three specific areas of research all tied together by the comment thread of sequencing as a tool to investigate genetic determinants of traits that underlie complex disease in the context of health disparities described under her Current Research. more

    Additional Information

  • Education +
    • B.S., Stella Maris College (India) (1996)
    • Sc.D., Johns Hopkins Bloomberg School of Public Health (Maryland) (2003)

    Additional Training

    National Human Genome Research Institute, NIH, Bethesda, MD, 2008, Research Postdoctoral Fellowship, Inherited Disease Research Branch
  • Research & Publications +

    Research Summary

    Dr. Mathias has spent over a decade doing research on the genetics of asthma in populations of African ancestry, leading what was the first genomewide association study on the genetics of asthma in a population of African ancestry in 2009. Today she leads a large multi-university team of populations geneticists and genetic epidemiologists on the whole genome sequence analysis of >1000 individuals of African ancestry from the Consortium on Asthma among African-ancestry Populations in the Americas (CAAPA, The goal of CAAPA is to rely on whole genome sequencing to extend our current understanding of the role of genetic variants as determinants of asthma in populations of African ancestry and to provide a public catalog of genetic variation for the greater use of the scientific community.

    Dr. Mathias also works with a team of premier researches involved in the study of coronary artery disease though the GeneSTAR Program. The GeneSTAR program aims to discover and amplify mechanisms of atherogenic vascular diseases and attendant comorbidities though a large family-based design and Dr. Mathias is specifically leads a family-based whole genome sequencing study of both European American and African American families to extend the previously done genomewide associations studies on platelet aggregation in these families at higher risk for CAD. As part of her R01, the team will be sequencing >260 individuals with platelet hyper-aggregation from these families followed by targeted next generation sequencing of implicated regions in >1300 additional family members.

    As further extension to her research of health disparities, Dr. Mathias has extensive interest in the role of genetic variants in poly-unsaturated fatty acid (PUFA) metabolism. Alongside researchers at Wake Forest University, she has demonstrated the role of selective pressures in the present populations differences at key genetic variants in the fatty acid desaturase (FADS) cluster on chromosome 11q12-13. Dr. Mathias and her team have argued that striking differences in the frequency of genetic variants that predispose an individual to enhanced long-chain PUFA metabolism may explain in part the dramatically higher levels of LC-PUFAs in populations of African ancestry within the US, and therefore play a strong role in the resulting differences noted in chronic diseases of inflammation in African Americans in the US.

  • Academic Affiliations & Courses +
  • Activities & Honors +


    • General Proficiency Award: Excellence in academic and extra curricular fields, 1995
    • Gold Medal, B.S. Zoology, 1996
    • Academic Proficiency Award: Excellence in academics, 1997
    • Dr. Paul Award: Excellence in the field of genetics during the 1993 - 96 academic years, 1997
    • Silver Medal, B.S. Zoology, 1997
    • Outstanding Merit Award: for exemplifying excellence in the Division of Intramural Research science, National Human Genome Research Institute, 2005
    • Poster Award, National Human Genome Research Institute, 2007
    • Mosaic Award as part of the Diversity Initiative, Johns Hopkins University, 2009
  • Videos & Media +
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