Katheryn Alexandra Quilico Cousins-Gershenson, PhD
Research Assistant Professor of Neurology
Department: Neurology
Contact information
Richards Medical Building, Suite 600B
3700 Hamilton Walk
Philadelphia, PA 19104
3700 Hamilton Walk
Philadelphia, PA 19104
Graduate Group Affiliations
Education
BA ( Biological Sciences)
University of Chicago, 2007.
PhD (Neuroscience)
Brandeis University, 2015.
BA ( Biological Sciences)
University of Chicago, 2007.
PhD (Neuroscience)
Brandeis University, 2015.
Post-Graduate Training
Postdoctoral Fellow in Neurology, University of Pennsylvania, 2014-2018.
Postdoctoral Research in Neuroscience, Washington University, 2018-2019.
Permanent linkPostdoctoral Fellow in Neurology, University of Pennsylvania, 2014-2018.
Postdoctoral Research in Neuroscience, Washington University, 2018-2019.
Description of Research Expertise
Biofluid markers of neuropathologySelected Publications
Gee, Elser, Emrani, Kim, Rhodes, Irwin, Snyder, Cousins, McMillan, Massimo, & Boyle: Higher levels of ambient PM2.5 is associated with faster decline in cognitive performance in frontotemporal degeneration. International Neuropsychological Society (INS) Conference, Dublin, Ireland July 2026.Kac PR*, Cousins KAQ*, Szadziewska A, Shaw LM, Turton M, Van Deerlin VM, Harrison P, Zetterberg H, Wolk DA, McMillan CT, Galasko D, Hanrieder J, Lee EB, Kvartsberg H, Irwin DJ, Blennow K *first authors contributed equally: Tau368 improves p-tau diagnostic accuracy for FTLD-tau from FTLD-TDP. Acta Neuropathol 151: 71, Jun 2026.
Brown CA, Cousins KAQ, Korecka M, McGrew E, Chen-Plotkin A, Detre JA, McMillan CT, Lee EB, Das SR, Mechanic-Hamilton D, Yushkevich PA, Nasrallah IM, Shaw LM; Alzheimer's Disease Neuroimaging Initiative; Wolk DA.: Temporal Modeling of Amyloid and Tau Trajectories in Alzheimer's Disease Using PET and Plasma Biomarkers. Ann Neurol Jun 2026.
Tropea TF, Stevenson PA, Flitter M, Meehan D, Morris A, Lu M, Iaccarino L, Collins EC, Hodsdon ME, Irwin D, Spindler M, Deik A, Dahodwala N, Cousins KAQ, Wolk DA, Shaw L, Weintraub D, Lee EB, Chen-Plotkin A, Mintun M, Siderowf A.: Association between Plasma P-tau217 and Alzheimer's Copathology and Cognitive Decline in Parkinson's Disease. Ann Neurol Jun 2026.
Kac*, Cousins*, Shaw, Karikari, Turton, van Deerlin, Harrison, Kvartsberg, Zetterberg, Wolk, McMillan, Lee, Irwin#, & Blennow# *co-first author: CSF tau368 improves CSF p-tau diagnostic accuracy to detect FTLD-tau. TDP-43 Summit, Madison WI May 2026.
Elser, Cousins, Gee, Boyle, Massimo, Brown, Shaw, Lee, Weisskopf, McMillan, & Wolk: Long-term air pollution exposure and Alzheimer disease biofluid biomarkers. National Alzheimer’s Coordinating Center (NACC) Spring ADRC Meeting, Atlanta, GA May 2026.
Liu, Fan, Kannarkat, Irwin, Cousins, & Blair: Secretion of an alpha-synuclein-HMGB2 isopeptide heterodimer in Alzheimer’s disease. Penn Institute on Aging (IOA), Sylvan M. Cohen Annual Retreat May 2026.
Honey MIJ, Hok-A-Hin YS, Thijssen EH, Cousins KAQ, van der Weijden B, In 't Veld L, Stoops E, de Boer SCM, Duits FH, de Houwer JFH, Morrema THJ, Alcolea D, Illán-Gala I, Fortea J, Lleó A, Boxer AL, Irwin DJ, Lee EB, Shaw L, McMillan CT, Wolk DA, Hoozemans JJM, van der Flier WM, van der Ende E, Seelaar H, Verberk IMW, Gan L, Pijnenburg Y, Teunissen CE.: An acetylated Tau-174 CSF biomarker discriminates between TDP-43 and tau pathology in patients with frontotemporal lobar degeneration. Nat Med Apr 2026.
Rhodes, Cousins, Philips, Lee, Wolk & McMillan: Progressive amnestic syndrome in the absence of AD biomarkers and TDP-43 pathology: Primary age-related tauopathy as a clinical mimic of limbic-predominant age-related TDP-43 encephalopathy. Invited Talk, National Alzheimer’s Coordinating Center (NACC)/ADRC LATE webinar series April 2026.
Honey, Thijssen, Hok-A-Hin, Cousins, Weijden, Veld, Stoops, de Boer, Duits, Houwer, Morrema, Alcolea, Illán-Gala, Fortea, Lleó, Boxer, Irwin, Lee, Shaw, McMillan, Wolk, Hoozemans, van der Flier, van der Ende, Seelaar, Verberk, Gan, Pijnenburg, Teunissen: An Acetylated Tau-174 CSF Biomarker Discriminates Between TDP-43 and Tau Pathology in Patients with Frontotemporal Degeneration. Invited Talk: Restoring Neural Resilience in ALS and Alzheimer’s Disease Alzheimer's Disease Parkinson’s Disease (AD/PD) March 2026.