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Anand Padmanabhan, MD, PhD, QIA

Medical Director, Transfusion Medicine
Associate Investigator

Associate Investigator
Versiti Blood Research Institute

Associate Professor of Pathology
Medical College of Wisconsin

Contact Us

Anand Padmanabhan, MD, PhD, QIA

Medical Director, Transfusion Medicine
Associate Investigator
Email (414) 937-6045 Fax: (414) 933-6803

  • Research Interests

    Transfusion Medicine

    Dr. Padmanabhan is a member of the Medical Sciences Institute of the BloodCenter of Wisconsin working in collaboration with Richard H Aster, M.D. His area of research focus is Heparin induced Thrombocytopenia and Thrombosis (HIT), a major cause of morbidity and mortality in patients: 1-5% of patients on heparin therapy go on to develop this condition. The focus of his studies is on defining the immunological mechanism by which HIT antibodies cause thrombocytopenia and thrombosis and are aimed at improving diagnosis and treatment of this serious complication of heparin therapy.

  • Grant Support


  • Lab

    Curtis Jones
    Sr. Research Technologist

    Therapeutic Apheresis

  • Publications


    Refereed Journal Publications/Original Papers

    1. Boylan JM, Anand P and Gruppuso PA. 2001.  Ribosomal protein S6 phosphorylation and function during late gestation liver development in the rat. J Biol Chem. 276(48):44457-63.

    2. Anand P, Boylan JM, Ou Y and Gruppuso PA. 2002. Insulin signaling during perinatal liver development in the rat. Am J Physiol Endocrinol Metab. 283(4):E844-52.

    3. Gruppuso PA, Boylan JM, Anand P and Bienieki TC. 2005 Effects of maternal starvation on hepatocyte proliferation in the late gestation fetal rat. Pediatr Res. 57(2):185-91.

    4. Anand P and Gruppuso PA. 2005. The regulation of hepatic protein synthesis during fasting in the rat. J Biol Chem. 280(16):16427-36.

    5. Anand P and Gruppuso PA. 2006. Rapamycin inhibits liver growth during refeeding in rats via control of ribosomal protein translation but not cap-dependent translation initiation. J Nutrition.2006 Jan; 136(1):27-33.

    6. Padmanabhan A, Ratner LE, Jhang JS, Duong JK, Markowitz GS, Vasilescu ER, Crew RJ and Schwartz J. 2009. Comparative Outcome analysis of ABO-incompatible and Positive Crossmatch Renal Transplantation: A Single Center Experience. Transplantation. 2009 Jun 27;87(12):1889-96.

    7. Padmanabhan A, Slotky R, Jhang JS, Dael S, Crowder T, Colovai AI and Schwartz J. 2009. Use of the Hematopoietic Progenitor Cell Parameter in Optimizing Timing of Peripheral Blood Stem Cell Collection. Vox Sang. 2009 Aug; 97(2):153-9.

    8. Serban GWhittaker VFan JLiu ZManga KKhan MKontogianni KPadmanabhan ACohen DSuciu-Foca NRatner LColovai AI. Significance of immune cell function monitoring in renal transplantation after thymoglobulin induction therapy. Human Immunology 2009 Nov; 70(11):882-90

    9. Stotler B*, Padmanabhan A*, Devine P, Wright J, Spitalnik SL, Schwartz J. Transfusion requirements in Obstetric Patients with Placenta Accreta, Transfusion, 2011 Dec;51(12):2627-33. * both authors contributed equally

    10. Arinsburg SA, Skerrett DL, Karp JK, Ness PM, Jhang J, Padmanabhan A, Gibble J, Schwartz J, King KE, Cushing MM. Exclusion of female plasma donors significantly reduces transfusion-related acute lung injury. Transfusion, 2012 May;52(5):946-52

    11. Yongwei Zheng, Alexander W Wang, Mei Yu, Anand Padmanabhan, Ben Tourdot, Debra K Newman, Gilbert C. White, Richard H Aster, Renren Wen, and Demin Wang B cell tolerance regulates production of antibodies causing heparin-induced thrombocytopenia. Blood, 2014 Feb 6;123(6):931-4

    12. Karafin, Matthew S, Sharon Graminske, Erickson, Paulette, Walters, Mark, Scott, Edward P, Carter, Scott, and Anand Padmanabhan*. Evaluation of the Spectra Optia Apheresis System for Mononuclear Cell (MNC) Collection in G-CSF Mobilized and Non-mobilized Healthy Donors: Results of a Multicenter Study.Journal of Clinical Apheresis, 2014 Oct;29(5):273-80.corresponding author.

    13. Use of laboratory tests to guide initiation of autologous hematopoietic progenitor cell collection by apheresis [HPC(A)]:  results from the multicenter HPC(A) laboratory trigger survey. Robert S. Makar,Anand Padmanabhan, Haewon C. Kim, Christina Anderson, Michele W. Sugrue and Michael Linenberger.Transfusion Medicine Reviews. 2014 Oct;28(4):198-204

    14. Jose A. Cancelas, Anand Padmanabhan, Tuan Le, Neeta Rugg, Nicole Worsham, Susan Pinkard, Jennifer Buck, Julie Goldberg, Jerry Bill . Spectra Optia granulocyte apheresis collections results in higher collection efficiency of viable, functional neutrophils in a randomized crossover multicenter trial.Transfusion Nov 10 2014, epub ahead of print.

    15. Jay Raval*, Anand Padmanabhan*, Johanna Kremer Hovinga, and Joseph KissDevelopment of a clinically significant ADAMTS13 inhibitor in a patient with hereditary thrombotic thrombocytopenic purpura. American Journal of Hematology. 2015 Jan;90(1):E22 *both authors contributed equally

    16. Anand Padmanabhan*, Curtis Jones, Daniel Bougie, Brian Curtis, Janice Mcfarland, Demin Wang and Richard Aster. Heparin-independent binding of HIT antibodies to platelets: Implications for HIT pathogenesis. *Corresponding author. Blood 2015 Jan 1;125(1):155-61

    17. Matthew Karafin, Bruce Sachais, Laura Connelly-Smith, Joshua Field, Michael Linenberger and Anand Padmanabhan. 2012 NHLBI State of the Science Symposium in Therapeutic Apheresis: Knowledge Gaps and Research Opportunities in the area of Hematology-Oncology. Journal of Clinical Apheresis 2015 May 4. doi: 10.1002/jca.21400. [Epub ahead of print]

    18. Critical role of T cells in PF4/heparin antibody production. Yongwei Zheng, Mei Yu, Anand Padmanabhan, Richard H Aster, Liudi Yuan, Renren Wen, and Demin Wang, Blood 2015 Mar 12;125(11):1826-9.

    19. Use of a Dual Lumen Port for Automated Red Cell Exchange in Adults with Sickle Cell Disease. Anuj Shrestha, Zeeshan Jawa, Kathryn L. Koch, Amy B. Rankin, Aniko Szabo, Anand Padmanabhan, Matthew S. Karafin, Joshua J. Journal of Clinical Apheresis2015 Mar 19; epub ahead of print.

    20. Anand Padmanabhan*, Curtis Jones, Daniel Bougie, Brian Curtis, Janice Mcfarland, Demin Wang and Richard Aster. A PF4-dependent CD62p expression assay selectively detects serotonin-releasing antibodies in patients suspected of HIT. Thrombosis & Haemostasis, 2015 Nov 25;114(6):1322-3* Corresponding Author.

    21. Anand Padmanabhan*, Curtis Jones, Brian Curtis, Daniel Bougie, Mia Sullivan, Namrata Peswani, Janice Mcfarland, Daniel Eastwood, Demin Wang and Richard Aster A novel PF4-dependent platelet activation assay identifies patients likely to have heparin-induced thrombocytopenia/thrombosis (HIT).Chest. 2016 Sep;150(3):506-15. * Corresponding Author. Editorial note: Platelet Activation Testing for Heparin-Induced Thrombocytopenia Antibodies: A Problem That Needs Fixing? Chest. 2016 Sep; 150(3):478-80

    22. Padmanabhan A, Jones CG, Pechauer SM, Curtis BR, Bougie DW, Irani MS, Bryant BJ, Alperin JB, Deloughery TG, Mulvey KP, Dhakal B, Wen R, Wang D, Aster RH. Intravenous immunoglobulin for treatment of severe refractory heparin-induced thrombocytopenia. Chest. Sep 2017 Volume 152, Issue 3, Pages 478–485. * Corresponding Author. Editorial note: Ning S and Warkentin TE, IV Immunoglobulin for Autoimmune Heparin-Induced Thrombocytopenia. Chest Sep 2017, Volume 152, Issue 3, Pages 453–455.

    23. Jones CG, Pechauer SM, Curtis BR, Bougie DW, Irani MS, Dhakal B, Pierce B, Aster RH andPadmanabhan A. A PF4-dependent platelet activation assay (PEA) facilitates early detection of pathogenic HIT antibodies. Chest. Oct 2017;152(4):e77-e80.

    24. Jones, Pechauer, Curtis BR, Bougie DW, Aster RH and Padmanabhan A*. IgG in Normal Plasma Inhibits HIT Antibody-mediated Platelet Activation: Implications for Plasma Exchange in HIT. Blood 2018 Feb 8;131(6):703-706.* Corresponding Author

    25. Dhakal B, Baumann-Kreuziger L, Rein L, Kleman A, Fraser R, Hari P and Padmanabhan A*. Disease burden, complication rates, and health-care costs of heparin-induced thrombocytopenia in the USA: a population-based study. Lancet Haematol. 2018 May;5(5):e220-e231 * Corresponding Author.Commentary on paper: Gruel Y. Analysis of big data for heparin-induced thrombocytopenia: valuable information but also some doubts. Lancet Haematol. 2018 May;5(5):e188-e189

    26. B.D. Park, M. Kumar, S. Nagalla, N. De Simone, R.H. Aster, A. Padmanabhan, R. Sarode and S. Rambally. Intravenous immunoglobulin as an adjunct therapy in persisting heparin-induced thrombocytopenia. Transfusion & Apheresis Science, epub June 2018.

    27. Pandya K, Davis G, Johnson E and Padmanabhan A. Serotonin Release Assay (SRA)-Negative HIT, a newly recognized entity: Implications for diagnosis and management. Thrombosis Research, 2018 Dec;172:169-171

    28. Irani M, Siegal E, Jella A, Aster RH and Padmanabhan A. Use of Intravenous Immunoglobulin G to Treat Spontaneous Heparin-induced Thrombocytopenia. Transfusion. Epub ahead of print, Transfusion, Dec 2018

    Books Chapters, Reviews & Commentaries

    1. Padmanabhan A, Schwartz J, and Spitalnik, SL. 2009. Transfusion Therapy in Postpartum Hemorrhage. Semin Perinatol.2009 Apr;33 (2):124-7

    2. Padmanabhan A, and Triulzi D. Transfusion therapy in Reoperative Cardiac Surgery in Redo Cardiac Surgery in Adults.2nd Ed, 2010, CME Network. p43-49

    3. Schwartz J, Padmanabhan A, Francis R and Linenberger M: Mobilization and Collection of Peripheral Blood Hematopoietic Progenitor Cells.  In Apheresis: Principles and Practice, 3rd Edition, 2010, AABB Press. p483-522

    4. Schwartz JWinters JLPadmanabhan ABalogun RADelaney MLinenberger MLSzczepiorkowski ZMWilliams MEWu YShaz BH. Guidelines on the use of therapeutic apheresis in clinical practice-evidence-based approach from the writing committee of the american society for apheresis: the sixth special issue. J Clin Apher. 2013 Jul;28(3):145-284 (This evidence-based review published once every 3 years serves as an authoritative evidence-based foundation for the application of apheresis in human disease).

    5. Karr EG and Padmanabhan A. Chapter 3: Therapeutic Apheresis Procedures, in Principles of Apheresis Technology - 5th ed, 2014.

    6. Padmanabhan A. Hematopoietic Stem/Progenitor Cell Collection by Apheresis in Clinical Manual of Blood & Marrow Hematopoietic Cell Transplantation. Editors: P. Hari and S. Abutalib. Wiley Blackwell Publishers. In press, Dec 2016

    7. Guidelines on the Use of Therapeutic Apheresis in Clinical Practice-Evidence-Based Approach from the Writing Committee of the American Society for Apheresis: The Seventh Special Issue.Schwartz J, Padmanabhan A, Aqui N, Balogun RA, Connelly-Smith L, Delaney M, Dunbar NM, Witt V, Wu Y, Shaz BH. J Clin Apher. 2016 Jun;31(3):149-6

    8. Cellular Collection by Apheresis. Padmanabhan A. Transfusion, Feb 2018

    Editorials, Letters to the Editor, Other

    1. Shaz BH, Schwartz J, Winters JL, Padmanabhan A, Balogun RA, Delaney M, Szczepiorkowski ZM, Williams ME, Wu Y, Linenberger ML. ASFA Guidelines support use of red cell exchange transfusion for severe malaria with high parasitemia. Clin Infect Dis. 2013 Oct 2

    2. Padmanabhan A. Why “R” HIT patients predisposed to thrombosis? Blood, 9 April 2015; Vol. 125, No. 15; 2319-20


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