Ashok Nambiar, MD

Title(s)Professor, Laboratory Medicine
SchoolSchool of Medicine
Address505 Parnassus Avenue
San Francisco CA 94117
Phone415-353-1311
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    Collapse Biography 
    Collapse Awards and Honors
    UCSF Dept of Laboratory Medicine 2011Faculty Teaching Award
    UCSF Dept of Laboratory Medicine 2010Faculty Teaching Award
    UCSF Dept of Laboratory Medicine 2006Faculty Teaching Award
    AABB2004AABB Baxter Transfusion Medicine Fellow Scholarship Award

    Collapse Overview 
    Collapse Overview
    Clinical interests include diagnostic immunohematology, blood donor safety and transfusion therapy. Research interests include platelet alloimmunization, microbial contamination of blood products, error management and systems approach to transfusion safety.

    Collapse Bibliographic 
    Collapse Publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help. to make corrections and additions.
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    Altmetrics Details PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Outcomes after ultramassive transfusion in the modern era: An Eastern Association for the Surgery of Trauma multicenter study. J Trauma Acute Care Surg. 2021 07 01; 91(1):24-33. Matthay ZA, Hellmann ZJ, Callcut RA, Matthay EC, Nunez-Garcia B, Duong W, Nahmias J, LaRiccia AK, Spalding MC, Dalavayi SS, Reynolds JK, Lesch H, Wong YM, Chipman AM, Kozar RA, Penaloza L, Mukherjee K, Taghlabi K, Guidry CA, Seng SS, Ratnasekera A, Motameni A, Udekwu P, Madden K, Moore SA, Kirsch J, Goddard J, Haan J, Lightwine K, Ontengco JB, Cullinane DC, Spitzer SA, Kubasiak JC, Gish J, Hazelton JP, Byskosh AZ, Posluszny JA, Ross EE, Park JJ, Robinson B, Abel MK, Fields AT, Esensten JH, Nambiar A, Moore J, Hardman C, Terse P, Luo-Owen X, Stiles A, Pearce B, Tann K, Abdul Jawad K, Ruiz G, Kornblith LZ. PMID: 34144557; PMCID: PMC8243874.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    2. Impact of new myeloma agents on the transfusion laboratory. Pathology. 2021 Apr; 53(3):427-437. Jones AD, Moayeri M, Nambiar A. PMID: 33707006.
      View in: PubMed   Mentions:    Fields:    Translation:HumansCells
    3. Treatment of immunocompromised COVID-19 patients with convalescent plasma. Transpl Infect Dis. 2021 Apr; 23(2):e13477. Fung M, Nambiar A, Pandey S, Aldrich JM, Teraoka J, Freise C, Roberts J, Chandran S, Hays SR, Bainbridge E, DeVoe C, Roque Gardner A, Yokoe D, Henrich TJ, Babik JM, Chin-Hong P. PMID: 32989856; PMCID: PMC7537112.
      View in: PubMed   Mentions: 20     Fields:    Translation:HumansCells
    4. Investigating Transfusion-related Sepsis Using Culture-Independent Metagenomic Sequencing. Clin Infect Dis. 2020 08 22; 71(5):1179-1185. Crawford E, Kamm J, Miller S, Li LM, Caldera S, Lyden A, Yokoe D, Nichols A, Tran NK, Barnard SE, Conner PM, Nambiar A, Zinter MS, Moayeri M, Serpa PH, Prince BC, Quan J, Sit R, Tan M, Phelps M, Derisi JL, Tato CM, Langelier C. PMID: 31563940; PMCID: PMC7442849.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    5. Sepsis from an apheresis platelet contaminated with Acinetobacter calcoaceticus/baumannii complex bacteria and Staphylococcus saprophyticus after pathogen reduction. Transfusion. 2020 09; 60(9):1960-1969. Fridey JL, Stramer SL, Nambiar A, Moayeri M, Bakkour S, Langelier C, Crawford E, Lu T, Lanteri MC, Kamm J, Miller S, Wagner SJ, Benjamin RJ, Busch MP. PMID: 32738079.
      View in: PubMed   Mentions: 2     Fields:    Translation:HumansCells
    6. Sepsis Attributed to Bacterial Contamination of Platelets Associated with a Potential Common Source - Multiple States, 2018. MMWR Morb Mortal Wkly Rep. 2019 Jun 14; 68(23):519-523. Jones SA, Jones JM, Leung V, Nakashima AK, Oakeson KF, Smith AR, Hunter R, Kim JJ, Cumming M, McHale E, Young PP, Fridey JL, Kelley WE, Stramer SL, Wagner SJ, West FB, Herron R, Snyder E, Hendrickson JE, Peaper DR, Gundlapalli AV, Langelier C, Miller S, Nambiar A, Moayeri M, Kamm J, Moulton-Meissner H, Annambhotla P, Gable P, McAllister GA, Breaker E, Sula E, Halpin AL, Basavaraju SV. PMID: 31194723; PMCID: PMC6613552.
      View in: PubMed   Mentions: 12     Fields:    Translation:HumansCells
    7. Development and Implementation of Real-Time Web-Based Dashboards in a Multisite Transfusion Service. J Pathol Inform. 2019; 10:3. Woo JS, Suslow P, Thorsen R, Ma R, Bakhtary S, Moayeri M, Nambiar A. PMID: 30915257; PMCID: PMC6396429.
      View in: PubMed   Mentions: 2  
    8. Fatal Sepsis Associated with Bacterial Contamination of Platelets - Utah and California, August 2017. MMWR Morb Mortal Wkly Rep. 2018 Jun 29; 67(25):718-722. Horth RZ, Jones JM, Kim JJ, Lopansri BK, Ilstrup SJ, Fridey J, Kelley WE, Stramer SL, Nambiar A, Ramirez-Avila L, Nichols A, Garcia W, Oakeson KF, Vlachos N, McAllister G, Hunter R, Nakashima AK, Basavaraju SV. PMID: 29953428; PMCID: PMC6023189.
      View in: PubMed   Mentions: 8     Fields:    Translation:HumansCells
    9. Two septic transfusion reactions presenting as transfusion-related acute lung injury from a split plateletpheresis unit. Crit Care Med. 2012 Aug; 40(8):2488-91. Rollins MD, Molofsky AB, Nambiar A, Pandey S, Weiskopf RB, Toy P. PMID: 22809916; PMCID: PMC3733455.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    10. Longitudinal management with crossmatch-compatible platelets for refractory patients: alloimmunization, response to transfusion, and clinical outcomes (CME). Transfusion. 2012 Oct; 52(10):2146-54. Wiita AP, Nambiar A. PMID: 23113654.
      View in: PubMed   Mentions: 7     Fields:    Translation:HumansPHPublic Health
    11. Transfusion. Longitudinal management with crossmatch-compatible platelets for refractory patients: alloimmunization, response to transfusion, and clinical outcomes. 2012. Arun Wiita and Ashok Nambiar. . View Publication.
    12. Transfusion 2011 2011;51:2573-2582. Detection of bacterial contamination in pre-storage culture negative apheresis platelets on day of issue with the PGD test. 2011; (51):2573-2582. Michael R. Jacobs et al and PGD Study Group. View Publication.
    13. The potential impact of new donor height and weight criteria on young donor eligibility and faint or prefaint reaction rates. Transfusion. 2011 Apr; 51(4):737-41. Dunbar N, Katz J, Nambiar A. PMID: 21496042.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    14. HLAMatchmaker-driven analysis of responses to HLA-typed platelet transfusions in alloimmunized thrombocytopenic patients. Blood. 2006 Feb 15; 107(4):1680-7. Nambiar A, Duquesnoy RJ, Adams S, Zhao Y, Oblitas J, Leitman S, Stroncek D, Marincola F. PMID: 16269623; PMCID: PMC1895402.
      View in: PubMed   Mentions: 12     Fields:    Translation:Humans
    15. Chicken Y-box proteins chk-YB-1b and chk-YB-2 repress translation by sequence-specific interaction with single-stranded RNA. Biochem J. 2000 Jun 01; 348 Pt 2:297-305. Swamynathan SK, Nambiar A, Guntaka RV. PMID: 10816422; PMCID: PMC1221066.
      View in: PubMed   Mentions: 6     Fields:    Translation:AnimalsCells
    16. Role of single-stranded DNA regions and Y-box proteins in transcriptional regulation of viral and cellular genes. FASEB J. 1998 May; 12(7):515-22. Swamynathan SK, Nambiar A, Guntaka RV. PMID: 9576478.
      View in: PubMed   Mentions: 30     Fields:    Translation:HumansAnimalsCells
    17. Characterization of the DNA-binding domain of the avian Y-box protein, chkYB-2, and mutational analysis of its single-strand binding motif in the Rous sarcoma virus enhancer. J Virol. 1998 Feb; 72(2):900-9. Nambiar A, Swamynathan SK, Kandala JC, Guntaka RV. PMID: 9444981; PMCID: PMC124559.
      View in: PubMed   Mentions: 4     Fields:    Translation:AnimalsCells
    18. Cloning of a novel Y-box homology protein (chkYB-1HP) cDNA lacking the cold-shock domain. Biochim Biophys Acta. 1998 Jan 07; 1395(1):1-6. Nambiar A, Kandala JC, Svoboda J, Guntaka RV. PMID: 9434143.
      View in: PubMed   Mentions: 2     Fields:    Translation:AnimalsCells
    19. Molecular cloning and characterization of a cDNA for the highly conserved HMG-like protein (Pf16) gene of Plasmodium falciparum. Biochem Biophys Res Commun. 1997 May 08; 234(1):101-6. Nambiar A, Kandala JC, Dolan SA, Jensen JB, Guntaka RV. PMID: 9168969.
      View in: PubMed   Mentions:    Fields:    Translation:AnimalsCells
    20. Chicken YB-2, a Y-box protein, is a potent activator of Rous sarcoma virus long terminal repeat-driven transcription in avian fibroblasts. J Virol. 1997 Apr; 71(4):2873-80. Swamynathan SK, Nambiar A, Guntaka RV. PMID: 9060644; PMCID: PMC191413.
      View in: PubMed   Mentions: 3     Fields:    Translation:AnimalsCells
    21. Cloning of Rous sarcoma virus enhancer factor genes. II. RSV-EF-II, abundantly expressed in fibroblasts and muscle tissue, binds to an octamer sequence, 5'-GTACCACC-3', in the noncoding strand of RSV enhancer. Virology. 1996 Aug 01; 222(1):133-43. Cleavinger PJ, Shin BA, Kandala JC, Nambiar A, Swamynathan SK, Guntaka RV. PMID: 8806494.
      View in: PubMed   Mentions: 4     Fields:    Translation:AnimalsCells
    22. Host- and tissue-specific factors that interact with the enhancer sequences of Rous sarcoma virus LTR. Folia Biol (Praha). 1994; 40(5):237-47. Guntaka RV, Kandala JC, Shin BA, Nambiar A, Svoboda J, Cleavinger P. PMID: 7895854.
      View in: PubMed   Mentions:    Fields:    Translation:HumansAnimalsCells
    23. Ulnar nerve inoculation of poliovirus in bonnet monkey: a new primate model to investigate neurovirulence. Vaccine. 1992; 10(8):529-32. John TJ, Nambiar A, Samuel BU, Rajasingh J. PMID: 1320307.
      View in: PubMed   Mentions: 2     Fields:    Translation:AnimalsCells
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