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Andrew N. McDavid, Ph.D.

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Office: (585) 275-5983

Research Labs

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Professional Background

I received my PhD in Statistics in June, 2016 from the University of Washington. From 2006-2011, I worked as a systems analyst in a genomics lab at Fred Hutchinson Cancer Research Center, where I experienced the dawn and sunset of array-based genome-wide association studies. Until I came to Rochester, I had only known the west coast, growing up in the suburbs of Seattle, then attending Pomona College in southern California to receive my BA in mathematics in 2006.


I am interested in methods and applications of single cell gene expression assays. There is great hope, for good reason, that measuring expression profiles in single cells will aid in immunological and cancer research, and provide new insight in cellular biology (though it still only provides a cross-sectional sample of cells at various points in their lifespan and cell cycle.) However, the biochemical, computational and statistical challenges are sizable.

I am focusing on the combinations of all three. Through the use of unique molecular identifiers, it may be possible to better understand the biases and sources of variability current protocols introduce. I write R software to allow easier manipulation of single-cell data sets (which are sometimes almost as "tall" as they are "wide"). I develop statistical methods that accommodate the bimodality of single cell data, which yield more sensitive and better calibrated tests.

Statistical questions I am currently interested in include:
Graphical modeling and gene-gene interaction networks
Clustering and distance measures for zero-inflated data
Gene-enrichment analysis
Borrowing strength and regularizing vector generalized linear models through empirical Bayes' procedures
2nd-order univariate phenomena, such as exceptional stability or heterogeneity of expression (and how this can be identified given differing levels of technical variability).


Journal Articles

Gao L, Slack M, McDavid A, Anolik J, Looney RJ. "Cell Senescence in Lupus." Current rheumatology reports.. 2019 Jan 14; 21(2):1. Epub 2019 Jan 14.

Lu DR, McDavid AN, Kongpachith S, Lingampalli N, Glanville J, Ju CH, Gottardo R, Robinson WH. "T Cell-Dependent Affinity Maturation and Innate Immune Pathways Differentially Drive Autoreactive B Cell Responses in Rheumatoid Arthritis." Arthritis & rheumatology.. 2018 Nov 0; 70(11):1732-1744. Epub 2018 Sep 24.

Grier A, McDavid A, Wang B, Qiu X, Java J, Bandyopadhyay S, Yang H, Holden-Wiltse J, Kessler HA, Gill AL, Huyck H, Falsey AR, Topham DJ, Scheible KM, Caserta MT, Pryhuber GS, Gill SR. "Neonatal gut and respiratory microbiota: coordinated development through time and space." Microbiome.. 2018 Oct 26; 6(1):193. Epub 2018 Oct 26.