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Cirle Alcantara Warren

Cirle Alcantara Warren

Research Professor of Medicine, Medicine- Infectious Diseases and International Health

Primary Location
PO Box 801379
MR-6, Room 2705
Charlottesville, VA 22908
Primary Phone Number
Fax Number
434.924.0075

Bio & Overview

Dr. Cirle Warren is interested in developing novel strategies in preventing and treating enteric infections, especially Clostridioides difficile infection. Her laboratory focuses on non-antimicrobial, host- and microbiota-targeted interventions to modulate immune responses to C. difficile and its toxins. She has shown that blocking inflammatory pathways- using cyclooxygenase II and angiotensin II inhibitors and adenosine analogues, may be beneficial in ameliorating toxin-induced intestinal tissue injury, inflammation and secretion. She is also investigating the mechanisms of the protective role of the dipeptide, alanyl-glutamine, in intestinal cell lines and animal models of anti-retroviral-, chemotherapy- and C. difficile intoxication - induced intestinal epithelial injury. She is now testing the benefit of supplementing standard treatment of C. difficile infection with alanyl-glutamine in human disease through the conduct of a randomized placebo controlled clinical trial that is funded by NIH/NIAID. Dr. Warren’s laboratory established the use of the aged mouse model of C. difficile infection, discovering the critical influence of the aging host immunity and microbiota in the development of severe and recurrent disease in the elderly. Her laboratory is also pioneering studies delving into both intestinal (development of post-infection dysmotility) and extra-intestinal (functional and cognitive impairment) outcomes of C. difficile infection with aging. Given the important role of the microbiota in C. difficile infection, she is also involved in the Fecal Microbiota Program at UVA Health, focusing on the safety and outcomes of patients undergoing intestinal microbiota transplantation. Dr. Warren also has strong interest in the impact of infections in special populations- CDI in the elderly and COVID-19 in pregnant women and racial/ethnic minority groups, investigating interventions that can potentially improve outcomes in these vulnerable population.

Academic Information

Department
Medicine- Infectious Diseases and International Health
Academic Title
Associate Professor

Primary Education

  • BS, Zoology, University of the Philippinesnull
  • Clinical Fellowship, Infectious Diseases , Salem VA Medical Centernull
  • MD, Medicine, University of the East Ramon Magsaysay Memorialnull
  • Research Fellowship, Infectious Disease and International Health, University of Virginianull
  • Residency, Internal Medicine, Hospital of Saint Raphaelnull

Research Interests

Prevention and treatment of C. difficile infection. Role of microbiota in health and disease. Infections in special populations- elderly, pregnant women and racial/ethnic minority groups.

Selected Publications

2024

Costa, D. V. S., Pham, N., Loureiro, A. V., Yang, S. E., Behm, B. W., & Warren, C. A. (2024). Clostridioides difficile infection promotes gastrointestinal dysfunction in human and mice post-acute phase of the disease. ANAEROBE, 87. doi:10.1016/j.anaerobe.2024.102837

Shin, J. H., Tillotson, G., MacKenzie, T. N., Warren, C. A., Wexler, H. M., & Goldstein, E. J. C. (2024). Bacteroides and related species: The keystone taxa of the human gut microbiota. ANAEROBE, 85. doi:10.1016/j.anaerobe.2024.102819

2023

Tillotson, G., Vedantam, G., Shin, J. H., & Warren, C. A. (2023). The Importance of a Broad Consortium of Bacteria for a Healthy Gastrointestinal tract: A Narrative Review of the Live Biotherapeutic Product REBYOTA. OPEN FORUM INFECTIOUS DISEASES, 10(11). doi:10.1093/ofid/ofad529

Fernandez-Cotarelo, M. -J., Jackson-Akers, J. Y., Nagy-Agren, S. E., & Warren, C. A. (2023). Interaction of Clostridioides difficile infection with frailty and cognition in the elderly: a narrative review. EUROPEAN JOURNAL OF MEDICAL RESEARCH, 28(1). doi:10.1186/s40001-023-01432-9

Moore, J. H., Salahi, A., Honrado, C., Warburton, C., Tate, S., Warren, C. A., & Swami, N. S. (2023). Correlating Antibiotic-Induced Dysbiosis to Clostridioides difficile Spore Germination and Host Susceptibility to Infection Using an Ex Vivo Assay. ACS INFECTIOUS DISEASES, 9(10), 1878-1888. doi:10.1021/acsinfecdis.3c00192

Shirley, D. -A., Tornel, W., Warren, C. A., & Moonah, S. (2023). Clostridioides difficile Infection in Children: Recent Updates on Epidemiology, Diagnosis, Therapy. PEDIATRICS, 152(3). doi:10.1542/peds.2023-062307

Warren, C. A., Shin, J. H., Bansal, E. N., Costa, D. V. D. S., Wang, X. Q., Wu, M., . . . Archbald-Pannone, L. (2023). Alanyl-glutamine supplementation for Clostridioides difficile infection treatment (ACT): a double-blind randomised controlled trial study protocol. BMJ OPEN, 13(7). doi:10.1136/bmjopen-2023-075721

Barbosa, M. L. L., Albano, M. O., Martins, C. D. S., Warren, C. A., & Brito, G. A. D. C. (2023). Role of probiotics in preventing Clostridioides difficile infection in older adults: an integrative review. FRONTIERS IN MEDICINE, 10. doi:10.3389/fmed.2023.1219225

Oria, R. B., Costa, D. V. S., Medeiros, P. H. Q. S. D., Roque, C. R., Dias, R. P., Warren, C. A., . . . Guerrant, R. L. (2023). Myeloperoxidase as a biomarker for intestinal-brain axis dysfunction induced by malnutrition and Cryptosporidium infection in weanling mice. BRAZILIAN JOURNAL OF INFECTIOUS DISEASES, 27(3). doi:10.1016/j.bjid.2023.102776

2022

Costa, D. V. S., Pham, N. V. S., Hays, R. A., Bolick, D. T., Goldbeck, S. M., Poulter, M. D., . . . Warren, C. A. (2022). Influence of Binary Toxin Gene Detection and Decreased Susceptibility to Antibiotics among Clostridioides difficile Strains on Disease Severity: a Single-Center Study. ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 66(8). doi:10.1128/aac.00489-22

Madden, G. R., Petri, W. A. J., Costa, D. V. S., Warren, C. A., Ma, J. Z., & Sifri, C. D. (2022). Validation of Clinical Risk Models for Clostridioides difficile-Attributable Outcomes. ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 66(7). doi:10.1128/aac.00676-22

Jain, E., Zaenker, E. I., Hoffman, P. S., & Warren, C. A. (2022). In vitro activity of amixicile against T. vaginalis from clinical isolates. PARASITOLOGY RESEARCH, 121(8), 2453-2455. doi:10.1007/s00436-022-07567-8

Phillips, E. C., Warren, C. A., Ma, J. Z., & Madden, G. R. (2022). Impact of Tigecycline on C. difficile Outcomes: Case Series and Propensity-Matched Retrospective Study. ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 66(6). doi:10.1128/aac.00001-22

Brennhofer, S. A., McQuade, E. T. R., Liu, J., Guerrant, R. L., Platts-Mills, J. A., & Warren, C. A. (2022). Clostridioides difficile colonization among very young children in resource-limited settings. CLINICAL MICROBIOLOGY AND INFECTION, 28(7), 996-1002. doi:10.1016/j.cmi.2022.01.022

Costa, D. V. S., Shin, J. H., Goldbeck, S. M., Bolick, D. T., Mesquita, F. S., Loureiro, A. V., . . . Warren, C. A. (2023). Adenosine receptors differentially mediate enteric glial cell death induced by Clostridioides difficile Toxins A and B. FRONTIERS IN IMMUNOLOGY, 13. doi:10.3389/fimmu.2022.956326

Loureiro, A. V., Moura-Neto, L. I., Martins, C. S., Silva, P. I. M., Lopes, M. B. S., Leitao, R. F. C., . . . Brito, G. A. C. (2022). Role of Pannexin-1-P2X7R signaling on cell death and pro-inflammatory mediator expression induced by Clostridioides difficile toxins in enteric glia. FRONTIERS IN IMMUNOLOGY, 13. doi:10.3389/fimmu.2022.956340

Loureiro, A. V., Barbosa, M. L. L., Morais, M. L. G. S., Souza, I. P., Terceiro, L. S., Martins, C. S., . . . Brito, G. A. C. (2022). Host and Clostridioides difficile-Response Modulated by Micronutrients and Glutamine: An Overview. FRONTIERS IN NUTRITION, 9. doi:10.3389/fnut.2022.849301

2021

Costa, D. V. S., Moura-Neto, V., Bolick, D. T., Guerrant, R. L., Fawad, J. A., Shin, J. H., . . . Brito, G. A. C. (2021). S100B Inhibition Attenuates Intestinal Damage and Diarrhea Severity During Clostridioides difficile Infection by Modulating Inflammatory Response. FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY, 11. doi:10.3389/fcimb.2021.739874

Shin, J. H., Pawlowski, S. W., & Warren, C. A. (2021). Teaching old mice new tricks: the utility of aged mouse models of C. difficile infection to study pathogenesis and rejuvenate immune response. GUT MICROBES, 13(1). doi:10.1080/19490976.2021.1966255

Shin, J. H., Hays, R. A., & Warren, C. A. (2021). Hospitalized Older Patients with Clostridioides difficile Infection Refractory to Conventional Antibiotic Therapy Benefit from Fecal Microbiota Transplant.. Advances in geriatric medicine and research, 3(2), e210012. doi:10.20900/agmr20210012

Shirley, D. -A., Sharma, I., Warren, C. A., & Moonah, S. (2021). Drug Repurposing of the Alcohol Abuse Medication Disulfiram as an Anti-Parasitic Agent. FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY, 11. doi:10.3389/fcimb.2021.633194

2020

Moore, J. H., Salahi, A., Honrado, C., Warburton, C., Warren, C. A., & Swami, N. S. (2020). Quantifying bacterial spore germination by single-cell impedance cytometry for assessment of host microbiota susceptibility to Clostridioides difficile infection. BIOSENSORS & BIOELECTRONICS, 166. doi:10.1016/j.bios.2020.112440

Moore, J. H., Honrado, C., Stagnaro, V., Kolling, G., Warren, C. A., & Swami, N. S. (2020). Rapid in Vitro Assessment of Clostridioides difficile Inhibition by Probiotics Using Dielectrophoresis to Quantify Cell Structure Alterations. ACS INFECTIOUS DISEASES, 6(5), 1000-1007. doi:10.1021/acsinfecdis.9b00415

Jain, E., Shin, J. H., Wells, K. M., Pannone, A. F., Hornsby, P. P., & Warren, C. A. (2020). Association between Clostridioides difficile infection and multidrug-resistant organism colonization or infection among hospitalized adults: A case-control study. AMERICAN JOURNAL OF INFECTION CONTROL, 48(10), 1276-1278. doi:10.1016/j.ajic.2020.01.008

Foschetti, D. A., Braga-Neto, M. B., Bolick, D., Moore, J., Alves, L. A., Martins, C. S., . . . Warren, C. A. (2020). Clostridium difficile toxins or infection induce upregulation of adenosine receptors and IL-6 with early pro-inflammatory and late anti-inflammatory pattern. BRAZILIAN JOURNAL OF MEDICAL AND BIOLOGICAL RESEARCH, 53(9). doi:10.1590/1414-431X20209877

2019

Shin, J. H., & Warren, C. A. (2019). Prevention and treatment of recurrent Clostridioides difficile infection. CURRENT OPINION IN INFECTIOUS DISEASES, 32(5), 482-489. doi:10.1097/QCO.0000000000000587

Shin, J. H., Chaplin, A. S., Hays, R. A., Kolling, G. L., Vance, S., Guerrant, R. L., . . . Warren, C. A. (2019). Outcomes of a Multidisciplinary Clinic in Evaluating Recurrent Clostridioides difficile Infection Patients for Fecal Microbiota Transplant: A Retrospective Cohort Analysis. JOURNAL OF CLINICAL MEDICINE, 8(7). doi:10.3390/jcm8071036

Fernandez-Cotarelo, M. -J., Nagy-Agren, S. E., Smolkin, M. E., Jimenez-Diez-Canseco, L., Perez-Pomata, M. -T., Shenal, B. V., & Warren, C. A. (2019). Functional and Cognitive Status in Clostridium difficile Infection in the Hospitalized Elderly: a Retrospective Study of Two Sites. JOURNAL OF GENERAL INTERNAL MEDICINE, 34(8), 1392-1393. doi:10.1007/s11606-019-04935-6

Costa, D. V. S., Bon-Frauches, A. C., Silva, A. M. H. P., Lima-Junior, R. C. P., Martins, C. S., Leitao, R. F. C., . . . Brito, G. A. C. (2019). 5-Fluorouracil Induces Enteric Neuron Death and Glial Activation During Intestinal Mucositis via a S100B-RAGE-NFκB-Dependent Pathway. SCIENTIFIC REPORTS, 9. doi:10.1038/s41598-018-36878-z

2018

Rohani, A., Moore, J. H., Su, Y. -H., Stagnaro, V., Warren, C., & Swami, N. S. (2018). Single-cell electro-phenotyping for rapid assessment of Clostridium difficile heterogeneity under vancomycin treatment at sub-MIC (minimum inhibitory concentration) levels. SENSORS AND ACTUATORS B-CHEMICAL, 276, 472-480. doi:10.1016/j.snb.2018.08.137

2017

Shane, A. L., Mody, R. K., Crump, J. A., Tarr, P. I., Steiner, T. S., Kotloff, K., . . . Pickering, L. K. (2017). 2017 Infectious Diseases Society of America Clinical Practice Guidelines for the Diagnosis and Management of Infectious Diarrhea. CLINICAL INFECTIOUS DISEASES, 65(12), 1963-1973. doi:10.1093/cid/cix959

Shane, A. L., Mody, R. K., Crump, J. A., Tarr, P. I., Steiner, T. S., Kotloff, K., . . . Pickering, L. K. (2017). 2017 Infectious Diseases Society of America Clinical Practice Guidelines for the Diagnosis and Management of Infectious Diarrhea. CLINICAL INFECTIOUS DISEASES, 65(12), E45-E80. doi:10.1093/cid/cix669

Shin, J. H., Gao, Y., Moore, J. H. I. I., Bolick, D. T., Kolling, G. L., Wu, M., & Warren, C. A. (2018). Innate Immune Response and Outcome of Clostridium difficile Infection Are Dependent on Fecal Bacterial Composition in the Aged Host. JOURNAL OF INFECTIOUS DISEASES, 217(2), 188-197. doi:10.1093/infdis/jix414

Shin, J. H., & Warren, C. A. (2017). Collateral damage during antibiotic treatment of &ITC&IT. &ITdifficile&IT infection in the aged host: insights into why recurrent disease happens. GUT MICROBES, 8(5), 504-510. doi:10.1080/19490976.2017.1323616

2016

Bartelt, L. A., Bolick, D. T., Kolling, G. L., Roche, J. K., Zaenker, E. I., Lara, A. M., . . . Guerrant, R. L. (2016). Cryptosporidium Priming Is More Effective than Vaccine for Protection against Cryptosporidiosis in a Murine Protein Malnutrition Model. PLOS NEGLECTED TROPICAL DISEASES, 10(7). doi:10.1371/journal.pntd.0004820

Su, Y. -H., Rohani, A., Warren, C. A., & Swami, N. S. (2016). Tracking Inhibitory Alterations during Interstrain Clostridium difficile Interactions by Monitoring Cell Envelope Capacitance. ACS INFECTIOUS DISEASES, 2(8), 544-551. doi:10.1021/acsinfecdis.6b00050

Shin, J. H., Chaves-Olarte, E., & Warren, C. A. (2016). Clostridium difficile Infection. EMERGING INFECTIONS 10, 265-294. doi:10.1128/microbiolspec.EI10-0007-2015

van Opstal, E., Kolling, G. L., Mooreii, J. H., Coquery, C. M., Wade, N. S., Loo, W. M., . . . Warren, C. A. (2016). Vancomycin Treatment Alters Humoral Immunity and Intestinal Microbiota in an Aged Mouse Model of Clostridium difficile Infection. JOURNAL OF INFECTIOUS DISEASES, 214(1), 130-139. doi:10.1093/infdis/jiw071

Moore, J. H. I. I., van Opstal, E., Kolling, G. L., Shin, J. H., Bogatcheva, E., Nikonenko, B., . . . Warren, C. A. (2016). Treatment of Clostridium difficile infection using SQ641, a capuramycin analogue, increases post-treatment survival and improves clinical measures of disease in a murine model. JOURNAL OF ANTIMICROBIAL CHEMOTHERAPY, 71(5), 1300-1306. doi:10.1093/jac/dkv479

Shin, J. H., High, K. P., & Warren, C. A. (2016). Older Is Not Wiser, Immunologically Speaking: Effect of Aging on Host Response to Clostridium difficile Infections. JOURNALS OF GERONTOLOGY SERIES A-BIOLOGICAL SCIENCES AND MEDICAL SCIENCES, 71(7), 916-922. doi:10.1093/gerona/glv229

2015

Archbald-Pannone, L. R., McMurry, T. L., Guerrant, R. L., & Warren, C. A. (2015). Delirium and other clinical factors with Clostridium difficile infection that predict mortality in hospitalized patients. AMERICAN JOURNAL OF INFECTION CONTROL, 43(7), 690-693. doi:10.1016/j.ajic.2015.03.017

Moore, J. H., Pinheiro, C. C. D., Zaenker, E. I., Bolick, D. T., Kolling, G. L., van Opstal, E., . . . Warren, C. A. (2015). Correction: Defined Nutrient Diets Alter Susceptibility to Clostridium difficile Associated Disease in a Murine Model.. PloS one, 10(9), e0137037. doi:10.1371/journal.pone.0137037

Moore, J. H., Pinheiro, C. C. D., Zaenker, E. I., Bolick, D. T., Kolling, G. L., van Opstal, E., . . . Warren, C. A. (2015). Defined Nutrient Diets Alter Susceptibility to Clostridium difficile Associated Disease in a Murine Model. PLOS ONE, 10(7). doi:10.1371/journal.pone.0131829

Wang, J., Bartelt, L., Yu, D., Joshi, A., Weinbaum, B., Pierson, T., . . . Donowitz, G. (2015). Primary Cutaneous Cryptococcosis Treated with Debridement and Fluconazole Monotherapy in an Immunosuppressed Patient: A Case Report and Review of the Literature. CASE REPORTS IN INFECTIOUS DISEASES, 2015. doi:10.1155/2015/131356

2014

Su, Y. -H., Warren, C. A., Guerrant, R. L., & Swami, N. S. (2014). Dielectrophoretic Monitoring and Interstrain Separation of Intact Clostridium difficile Based on Their S(Surface)-Layers. ANALYTICAL CHEMISTRY, 86(21), 10855-10863. doi:10.1021/ac5029837

Hoffman, P. S., Bruce, A. M., Olekhnovich, I., Warren, C. A., Burgess, S. L., Hontecillas, R., . . . Macdonald, T. L. (2014). Preclinical Studies of Amixicile, a Systemic Therapeutic Developed for Treatment of Clostridium difficile Infections That Also Shows Efficacy against Helicobacter pylori. ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 58(8), 4703-4712. doi:10.1128/AAC.03112-14

Azevedo, O. G. R., Bolick, D. T., Roche, J. K., Pinkerton, R. F., Lima, A. A. M., Vitek, M. P., . . . Guerrant, R. L. (2014). Apolipoprotein E Plays a Key Role against Cryptosporidial Infection in Transgenic Undernourished Mice. PLOS ONE, 9(2). doi:10.1371/journal.pone.0089562

2013

Madan, R., Guo, X., Naylor, C., Buonomo, E. L., Mackay, D., Noor, Z., . . . Petri, W. A. J. (2014). Role of Leptin-Mediated Colonic Inflammation in Defense against Clostridium difficile Colitis. INFECTION AND IMMUNITY, 82(1), 341-349. doi:10.1128/IAI.00972-13

D'Auria, K. M., Kolling, G. L., Donato, G. M., Warren, C. A., Gray, M. C., Hewlett, E. L., & Papin, J. A. (2013). In Vivo Physiological and Transcriptional Profiling Reveals Host Responses to Clostridium difficile Toxin A and Toxin B. INFECTION AND IMMUNITY, 81(10), 3814-3824. doi:10.1128/IAI.00869-13

Bartelt, L. A., Sevilleja, J. E., Barrett, L. J., Warren, C. A., Guerrant, R. L., Bessong, P. O., . . . Samie, A. (2013). High Anti-Cryptosporidium parvum IgG Seroprevalence in HIV-Infected Adults in Limpopo, South Africa. AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE, 89(3), 531-534. doi:10.4269/ajtmh.12-0550

Bartelt, L. A., Roche, J., Kolling, G., Bolick, D., Noronha, F., Naylor, C., . . . Guerrant, R. (2013). Persistent G. lamblia impairs growth in a murine malnutrition model. JOURNAL OF CLINICAL INVESTIGATION, 123(6), 2672-2684. doi:10.1172/JCI67294

Rodrigues, R. S., Oliveira, R. A. C., Li, Y., Zaja-Milatovic, S., Costa, L. B., Braga Neto, M. B., . . . Warren, C. A. (2013). Intestinal Epithelial Restitution After TcdB Challenge and Recovery From Clostridium difficile Infection in Mice With Alanyl-Glutamine Treatment. JOURNAL OF INFECTIOUS DISEASES, 207(10), 1505-1515. doi:10.1093/infdis/jit041

Kolling, G. L., Wu, M., Warren, C. A., Durmaz, E., Klaenhammer, T. R., Timko, M. P., & Guerrant, R. L. (2013). Lactic acid production by Streptococcus thermophilus alters Clostridium difficile infection and in vitro Toxin A production (vol 3, pg 523, 2012). GUT MICROBES, 4(2), 175. doi:10.4161/gmic.24005

2012

Santos, A. A. Q. A., Braga-Neto, M. B., Oliveira, M. R., Freire, R. S., Barros, E. B., Santiago, T. M., . . . Brito, G. A. C. (2013). Glutamine and Alanyl-Glutamine Increase RhoA Expression and Reduce Clostridium difficile Toxin-A-Induced Intestinal Epithelial Cell Damage. BIOMED RESEARCH INTERNATIONAL, 2013. doi:10.1155/2013/152052

Li, Y., Figler, R. A., Kolling, G., Bracken, T. C., Rieger, J., Stevenson, R. W., . . . Warren, C. A. (2012). Adenosine A2A receptor activation reduces recurrence and mortality from Clostridium difficile infection in mice following vancomycin treatment. BMC INFECTIOUS DISEASES, 12. doi:10.1186/1471-2334-12-342

Warren, C. A., van Opstal, E. J., Riggins, M. S., Li, Y., Moore, J. H., Kolling, G. L., . . . Hoffman, P. S. (2013). Vancomycin Treatment's Association with Delayed Intestinal Tissue Injury, Clostridial Overgrowth, and Recurrence of Clostridium difficile Infection in Mice. ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 57(2), 689-696. doi:10.1128/AAC.00877-12

Warren, C. A., Li, Y., Calabrese, G. M., Freire, R. S., Zaja-Milatovic, S., van Opstal, E., . . . Guerrant, R. L. (2012). Contribution of Adenosine A2B Receptors in Clostridium difficile Intoxication and Infection. INFECTION AND IMMUNITY, 80(12), 4463-4473. doi:10.1128/IAI.00782-12

Braga-Neto, M. B., Oliveira, B. M. C., Rodrigues, R. S., Noronha, F. J., Leitao, R. F., Brito, G. A. C., . . . Warren, C. A. (2012). Protective effects of alanyl-glutamine supplementation against nelfinavir-induced epithelial impairment in IEC-6 cells and in mouse intestinal mucosa. CANCER BIOLOGY & THERAPY, 13(14), 1482-1490. doi:10.4161/cbt.22251

Cooper, P. B., Heuer, A. J., & Warren, C. A. (2013). Electronic screening of patients for predisposition to Clostridium difficile infection in a community hospital. AMERICAN JOURNAL OF INFECTION CONTROL, 41(3), 232-235. doi:10.1016/j.ajic.2012.03.022

Azevedo, O. G. R., Oliveira, R. A. C., Oliveira, B. C., Zaja-Milatovic, S., Araujo, C. V., Wong, D. V. T., . . . Oria, R. B. (2012). Apolipoprotein E COG 133 mimetic peptide improves 5-fluorouracil-induced intestinal mucositis. BMC GASTROENTEROLOGY, 12. doi:10.1186/1471-230X-12-35

Warren, C. A., Labio, E., Destura, R., Sevilleja, J. E., Jamias, J. D., & Daez, M. L. O. (2012). Clostridium difficile and Entamoeba histolytica infections in patients with colitis in the Philippines. TRANSACTIONS OF THE ROYAL SOCIETY OF TROPICAL MEDICINE AND HYGIENE, 106(7), 424-428. doi:10.1016/j.trstmh.2012.04.005

Warren, C. A., van Opstal, E., Ballard, T. E., Kennedy, A., Wang, X., Riggins, M., . . . Hoffman, P. S. (2012). Amixicile, a Novel Inhibitor of Pyruvate:Ferredoxin Oxidoreductase, Shows Efficacy against Clostridium difficile in a Mouse Infection Model. ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 56(8), 4103-4111. doi:10.1128/AAC.00360-12

Costa, L. B., Noronha, F. J., Roche, J. K., Sevilleja, J. E., Warren, C. A., Oria, R., . . . Guerrant, R. L. (2012). Novel In Vitro and In Vivo Models and Potential New Therapeutics to Break the Vicious Cycle of Cryptosporidium Infection and Malnutrition. JOURNAL OF INFECTIOUS DISEASES, 205(9), 1464-1471. doi:10.1093/infdis/jis216

Warren, C. A., Calabrese, G. M., Li, Y., Pawlowski, S. W., Figler, R. A., Rieger, J., . . . Guerrant, R. L. (2012). Effects of adenosine A2A receptor activation and alanyl-glutamine in Clostridium difficile toxin-induced ileitis in rabbits and cecitis in mice. BMC INFECTIOUS DISEASES, 12. doi:10.1186/1471-2334-12-13

D'Auria, K. M., Donato, G. M., Gray, M. C., Kolling, G. L., Warren, C. A., Cave, L. M., . . . Hewlett, E. L. (2012). Systems analysis of the transcriptional response of human ileocecal epithelial cells to Clostridium difficile toxins and effects on cell cycle control. BMC SYSTEMS BIOLOGY, 6. doi:10.1186/1752-0509-6-2

Viladomiu, M., Hontecillas, R., Pedragosa, M., Michalak, P., Michalak, K., Guerrant, R., . . . Bassaganya-Riera, J. (2012). Modulation of immune responses to Clostridium difficile by peroxisome proliferator-activated receptor γ and miRNA-146b. JOURNAL OF IMMUNOLOGY, 188. Retrieved from https://www.webofscience.com/

Kolling, G. L., Wu, M., Warren, C. A., Durmaz, E., Klaenhammer, T. R., Timko, M. P., & Guerrant, R. L. (2012). Lactic acid production by Streptococcus thermophilus alters Clostridium difficile infection and in vitro Toxin A production. GUT MICROBES, 3(6), 523-529. doi:10.4161/gmic.21757

Viladomiu, M., Hontecillas, R., Pedragosa, M., Carbo, A., Hoops, S., Michalak, P., . . . Bassaganya-Riera, J. (2012). Modeling the Role of Peroxisome Proliferator-Activated Receptor γ and MicroRNA-146 in Mucosal Immune Responses to Clostridium difficile. PLOS ONE, 7(10). doi:10.1371/journal.pone.0047525

2011

Costa, L. B., JohnBull, E. A., Reeves, J. T., Sevilleja, J. E., Freire, R. S., Hoffman, P. S., . . . Warren, C. A. (2011). CRYPTOSPORIDIUM-MALNUTRITION INTERACTIONS: MUCOSAL DISRUPTION, CYTOKINES, AND TLR SIGNALING IN A WEANED MURINE MODEL. JOURNAL OF PARASITOLOGY, 97(6), 1113-1120. doi:10.1645/GE-2848.1

Medeiros, C. A., Warren, C. A., Freire, R., Vieira, C. A., Lima, B. B., Vale, M. L., . . . Brito, G. A. (2011). Role of the haem oxygenase/carbon monoxide pathway in Clostridium difficile toxin A-induced enteritis in mice. JOURNAL OF MEDICAL MICROBIOLOGY, 60(8), 1146-1154. doi:10.1099/jmm.0.028910-0

Pawlowski, S. W., Calabrese, G., Kolling, G. L., Platts-Mills, J., Freire, R., Warren, C. A., . . . Guerrant, R. L. (2011). Murine model of Clostridium difficile infection (CDI) using aged gnotobiotic C57BL/6 mice and a BI strain (vol 202, pg 1708, 2010). JOURNAL OF INFECTIOUS DISEASES, 203(10), 1505. doi:10.1093/infdis/jir055

Warren, C. A., & Guerrant, R. L. (2011). Pathogenic C difficile is here (and everywhere) to stay. LANCET, 377(9759), 8-9. doi:10.1016/S0140-6736(10)61885-5

2010

Opintan, J. A., Newman, M. J., Ayeh-Kumi, P. F., Affrim, R., Gepi-Attee, R., Sevilleja, J. E. A. D., . . . Guerrant, R. L. (2010). Pediatric Diarrhea in Southern Ghana: Etiology and Association with Intestinal Inflammation and Malnutrition. AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE, 83(4), 936-943. doi:10.4269/ajtmh.2010.09-0792

Braga Neto, M. B., Aguiar, C. V., Maciel, J. G., Oliveira, B. M. C., Sevilleja, J. E., Oria, R. B., . . . Lima, A. A. M. (2010). Evaluation of HIV protease and nucleoside reverse transcriptase inhibitors on proliferation, necrosis, apoptosis in intestinal epithelial cells and electrolyte and water transport and epithelial barrier function in mice. BMC GASTROENTEROLOGY, 10. doi:10.1186/1471-230X-10-90

Oliveira, J. S., Neto, J. B., Warren, C. A., Roche, J. K., Lima, A. A., & Guerrant, R. L. (2010). IN VITRO UNDERNUTRITION MODEL OF INTESTINAL EPITHELIAL CELL PROLIFERATION AND MIGRATION USING IEC-6 CELLS. AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE, 83(5), 192. Retrieved from https://www.webofscience.com/

Costa, L. B., Madden, G., Sevilleja, J. E., Warren, C. A., Roche, J. K., & Guerrant, R. L. (2010). CPG-ODN, ARGININE OR ALANYL-GLUTMINE REDUCE CRYPTOSPORIDIAL INFECTION IN MALNOURISHED HUMAN INTESTINAL EPITHELIAL CELLS. AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE, 83(5), 98. Retrieved from https://www.webofscience.com/

Braga-Neto, M. B., Warren, C. A., Oliveira, B. M., Maciel, J. G., Sevilleja, J. E., Lima, A. A., & Guerrant, R. L. (2010). ALANYL-GLUTAMINE SUPPLEMENTATION PROTECTIVE EFFECTS ON NELFINAVIR-INDUCED INTESTINAL EPITHELIAL INJURY. AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE, 83(5), 367. Retrieved from https://www.webofscience.com/

Rodrigues, R. S., Neto, J. L., Lima, A. A., Warren, C. A., Kolling, G., & Guerrant, R. L. (2010). EFFECTS OF ALANYL-GLUTAMINE IN IEC-6 CELLS CHALLENGED WITH CLOSTRIDIUM DIFFICILE TOXINS. AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE, 83(5), 192. Retrieved from https://www.webofscience.com/