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Much of the work carried out by DTT is in support of the National Toxicology Program (NTP), an interagency partnership of the Food and Drug Administration, National Institute for Occupational Safety and Health, and NIEHS.

Mechanistic Toxicology Branch

Acting Chief

Darlene Dixon, D.V.M., Ph.D., D.A.C.V.P.

Darlene Dixon, D.V.M., Ph.D., D.A.C.V.P.

Acting Chief, Mechanistic Toxicology Branch
Tel 984-287-3848
[email protected]

Scientists & Staff

Shivani Ayyagari

Shivani Ayyagari

Fellow - IRTA Postdoctoral
Tel 984-287-3848
[email protected]
Tyler G. Beames, Ph.D.

Tyler G. Beames, Ph.D.

Fellow - IRTA Postdoctoral
Tel 984-287-3121
[email protected]
Sydney S. Boney, Ph.D.

Sydney S. Boney, Ph.D.

Fellow - IRTA Postdoctoral
Tel 984-287-3848
[email protected]
Vesna A. Chappell, Ph.D.

Vesna A. Chappell, Ph.D.

Contractor - Biologist
Tel 984-287-4205
[email protected]
David M. Crizer, Ph.D.

David M. Crizer, Ph.D.

Chemist
Tel 984-287-4221
[email protected]
Jonathan H. Diaz, Ph.D.

Jonathan H. Diaz, Ph.D.

Fellow - IRTA Postdoctoral
Tel 984-287-3848
[email protected]
Gaylia J. Harry, Ph.D.

Gaylia J. Harry, Ph.D.

Biologist
Tel 984-287-4183
[email protected]
Julia C. House

Julia C. House

Fellow - IRTA Postbaccalaureate
Tel 984-287-3848
[email protected]
Madeline C. Jeshurin

Madeline C. Jeshurin

Contractor
Tel 984-287-3935
[email protected]
Jingli Liu, Ph.D.

Jingli Liu, Ph.D.

Contractor - Biologist
Tel 984-287-4201
[email protected]
Dalisa R. Kendricks, Ph.D.

Dalisa R. Kendricks, Ph.D.

Fellow - IRTA Postdoctoral
Tel 984-287-4184
[email protected]
Grace E. Mallo

Grace E. Mallo

Fellow - IRTA Postbaccalaureate
Tel 984-287-4169
[email protected]
Maty B. Mbye

Maty B. Mbye

Fellow - IRTA Postbaccalaureate
Tel 984-287-3128
[email protected]
Christopher A. McPherson, Ph.D.

Christopher A. McPherson, Ph.D.

Biologist
Tel 984-287-4185
Fax 919-541-0870
[email protected]
Abhishek Mishra, Ph.D.

Abhishek Mishra, Ph.D.

Fellow - Visiting
Tel 984-287-4185
[email protected]
Mateus Prates Mori, Ph.D.

Mateus Prates Mori, Ph.D.

Contractor
Tel 984-287-4477
[email protected]
Carri C. Murphy

Carri C. Murphy

Contractor - Scientist
Tel 984-287-4175
[email protected]
Tasha S. Paul

Tasha S. Paul

Fellow - IRTA Postbaccalaureate
Tel 984-287-3848
[email protected]
Wei Qu, M.D., Ph.D., M.S.

Wei Qu, M.D., Ph.D., M.S.

Senior Biologist
Tel 984-287-4172
[email protected]
Julie R. Rice

Julie R. Rice

Biologist
Tel 984-287-4223
[email protected]
Shelby E. Saju

Shelby E. Saju

Fellow - IRTA Postdoctoral
Tel 984-287-4194
[email protected]
Janine H. Santos, Ph.D.

Janine H. Santos, Ph.D.

Staff Scientist
Tel 984-287-4008
[email protected]
Talia N. Seymore

Talia N. Seymore

Fellow - IRTA Postdoctoral
Tel 984-287-3848
[email protected]
Nicole A. Taube

Nicole A. Taube

Fellow - IRTA Postdoctoral
Tel 984-287-4008
[email protected]
Erik J. Tokar, Ph.D.

Erik J. Tokar, Ph.D.

Biologist
Tel 984-287-4173
[email protected]
Christopher J. Wood

Christopher J. Wood

Fellow - IRTA Postdoctoral
Tel 984-287-3848
[email protected]

Molecular Pathogenesis Group

Darlene Dixon, D.V.M., Ph.D., D.A.C.V.P.

Darlene Dixon, D.V.M., Ph.D., D.A.C.V.P.

Acting Chief, Mechanistic Toxicology Branch
Tel 984-287-3848
[email protected]
Lysandra Castro Marquez

Lysandra Castro Marquez

Biologist
Tel 984-287-4200
Fax 919-541-7666
[email protected]
Naisargee M. Jain

Naisargee M. Jain

Contractor
Tel 984-287-4583
[email protected]
Yitang Yan, Ph.D.

Yitang Yan, Ph.D.

Biologist
Tel 984-287-4206
[email protected]

Neurodevelopmental and Behavioral Toxicology Group

Heather B. Patisaul, Ph.D.

Heather B. Patisaul, Ph.D.

Scientific Director, Division of Translational Toxicology
Tel 984-287-4691
[email protected]
Jinyan Cao, M.D., Ph.D.

Jinyan Cao, M.D., Ph.D.

Staff Scientist
Tel 984-287-4194
[email protected]
Andrew J. Newell, Ph.D.

Andrew J. Newell, Ph.D.

Staff Scientist
Tel 984-287-4194
[email protected]
Jenna M. Berger, Ph.D.

Jenna M. Berger, Ph.D.

Fellow - IRTA Postdoctoral
Tel 984-287-4195
[email protected]