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Christian Bime

  • Associate Professor, Medicine
  • Assistant Professor, Clinical Translational Sciences
Contact
  • (520) 626-8309
  • Arizona Health Sciences Center, Rm. 2342 C
  • Tucson, AZ 85724
  • cbime@email.arizona.edu
  • Bio
  • Interests
  • Courses
  • Scholarly Contributions

Degrees

  • M.S. Epidemiology
    • Michigan State University School of Medicine, East Lansing, Michigan, United States
  • M.D. Medical Degree Diploma
    • Universite de Yaoundé, Yaoundé, Cameroon

Work Experience

  • Department of Medicine, University of Arizona (2013 - Ongoing)

Awards

  • Graduate Assistantship
    • The University of Arizona Health Sciences, Winter 2015
  • Programs to Increase Diversity among Individuals Engaged in Health-Related Research
    • NIH, Spring 2014

Licensure & Certification

  • Educational Commission for Foreign Medical Graduates (ECFMG) Certificate (2004)
  • American Board of Internal Medicine – Internal Medicine (2008)
  • American Board of Internal Medicine – Pulmonary Medicine (2013)
  • American Board of Internal Medicine – Critical Care Medicine (2014)

Related Links

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Interests

Teaching

Pulmonary Physiology and PathophysiologyPrinciples of Acute Critical Care

Research

Genetics of Acute Respiratory Distress Syndrome (ARDS)Translational ARDS researchHealth Disparities in ARDSAsthma Clinical TrialsAsthma, Obesity, and Aerobic Exercise

Courses

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Scholarly Contributions

Books

  • Bime, C., Gurguis, C. I., Hecker, L., Wang, T., Desai, A., & Garcia, J. G. (2016). MicroRNAs in inflammatory lung diseases. Translating MicroRNAs to the clinic. Elsevier.

Chapters

  • Bime, C. (2019). Acute and Chronic Respiratory Failure. In Oncologic Critical Care(pp 1-31). Springer International Publishing.
  • Bime, C. (2016). Health Disparities in Asthma. In Health Disparities in Respiratory Medicine(pp 173-187). B. L. Gerald and E. C. Berry: Cham, Springer International Publishing.
  • Bime, C., Gurguis, C. I., Hecker, L., Wang, T., Desai, A., & Garcia, J. G. (2016). MicroRNAs in inflammatory lung diseases.. In Translating MicroRNAs to the clinic(pp 135-177). Elsevier.

Journals/Publications

  • Bose, S., Bime, C., Henderson, R. J., Blake, K. V., Castro, M., DiMango, E., Hanania, N. A., Holbrook, J. T., Irvin, C. G., Kraft, M., Peters, S. P., Reibman, J., Sugar, E. A., Sumino, K., Wise, R. A., Rogers, L., & , A. L. (2021). Biomarkers of Type 2 Airway Inflammation as Predictors of Loss of Asthma Control During Step-Down Therapy for Well-Controlled Disease: The Long-Acting Beta-Agonist Step-Down Study (LASST). The journal of allergy and clinical immunology. In practice, 8(10), 3474-3481.
    More info
    Biomarkers that can predict loss of asthma control among patients being considered for step-down therapy in well-controlled disease are lacking.
  • Bime, C., Camp, S. M., Casanova, N., Oita, R. C., Ndukum, J., Lynn, H., & Garcia, J. G. (2020). The acute respiratory distress syndrome biomarker pipeline: crippling gaps between discovery and clinical utility. Translational research : the journal of laboratory and clinical medicine, 226, 105-115.
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    Recent innovations in translational research have ushered an exponential increase in the discovery of novel biomarkers, thereby elevating the hope for deeper insights into "personalized" medicine approaches to disease phenotyping and care. However, a critical gap exists between the fast pace of biomarker discovery and the successful translation to clinical use. This gap underscores the fundamental biomarker conundrum across various acute and chronic disorders: how does a biomarker address a specific unmet need? Additionally, the gap highlights the need to shift the paradigm from a focus on biomarker discovery to greater translational impact and the need for a more streamlined drug approval process. The unmet need for biomarkers in acute respiratory distress syndrome (ARDS) is for reliable and validated biomarkers that minimize heterogeneity and allow for stratification of subject selection for enrollment in clinical trials of tailored therapies. This unmet need is particularly highlighted by the ongoing SARS-CoV-2/COVID-19 pandemic. The unprecedented numbers of COVID-19-induced ARDS cases has strained health care systems across the world and exposed the need for biomarkers that would accelerate drug development and the successful phenotyping of COVID-19-infected patients at risk for development of ARDS and ARDS mortality. Accordingly, this review discusses the current state of ARDS biomarkers in the context of the drug development pipeline and highlight gaps between biomarker discovery and clinical implementation while proposing potential paths forward. We discuss potential ARDS biomarkers by category and by context of use, highlighting progress in the development continuum. We conclude by discussing challenges to successful translation of biomarker candidates to clinical impact and proposing possible novel strategies.
  • Bime, C., Casanova, N. G., Nikolich-Zugich, J., Knox, K. S., Camp, S. M., & Garcia, J. G. (2020). Strategies to DAMPen COVID-19-mediated lung and systemic inflammation and vascular injury. Translational research : the journal of laboratory and clinical medicine.
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    Approximately 15%-20% of patients infected with SARS-CoV-2 coronavirus (COVID-19) progress beyond mild and self-limited disease to require supplemental oxygen for severe pneumonia; 5% of COVID-19-infected patients further develop acute respiratory distress syndrome (ARDS) and multiorgan failure. Despite mortality rates surpassing 40%, key insights into COVID-19-induced ARDS pathology have not been fully elucidated and multiple unmet needs remain. This review focuses on the unmet need for effective therapies that target unchecked innate immunity-driven inflammation which drives unchecked vascular permeability, multiorgan dysfunction and ARDS mortality. Additional unmet needs including the lack of insights into factors predicting pathogenic hyperinflammatory viral host responses, limited approaches to address the vast disease heterogeneity in ARDS, and the absence of clinically-useful ARDS biomarkers. We review unmet needs persisting in COVID-19-induced ARDS in the context of the potential role for damage-associated molecular pattern proteins in lung and systemic hyperinflammatory host responses to SARS-CoV-2 infection that ultimately drive multiorgan dysfunction and ARDS mortality. Insights into promising stratification-enhancing, biomarker-based strategies in COVID-19 and non-COVID ARDS may enable the design of successful clinical trials of promising therapies.
  • Casanova, N. G., Gonzalez-Garay, M. L., Sun, B., Bime, C., Sun, X., Knox, K. S., Crouser, E. D., Sammani, N., Gonzales, T., Natt, B., Chaudhary, S., Lussier, Y., & Garcia, J. G. (2020). Differential transcriptomics in sarcoidosis lung and lymph node granulomas with comparisons to pathogen-specific granulomas. Respiratory research, 21(1), 321.
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    Despite the availability of multi-"omics" strategies, insights into the etiology and pathogenesis of sarcoidosis have been elusive. This is partly due to the lack of reliable preclinical models and a paucity of validated biomarkers. As granulomas are a key feature of sarcoidosis, we speculate that direct genomic interrogation of sarcoid tissues, may lead to identification of dysregulated gene pathways or biomarker signatures.
  • Chaudhary, S., Natt, B., Bime, C., Knox, K. S., & Glassberg, M. K. (2020). Antifibrotics in COVID-19 Lung Disease: Let Us Stay Focused. Frontiers in medicine, 7, 539.
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    After decades of research, two therapies for chronic fibrotic lung disease are now approved by the FDA, with dozens more anti-fibrotic therapies in the pipeline. A great deal of enthusiasm has been generated for the use of these drugs, which are by no means curative but clearly have a favorable impact on lung function decline over time. Amidst a flurry of newly developed and repurposed drugs to treat the coronavirus disease 2019 (COVID-19) and its accompanying acute respiratory distress syndrome (ARDS), few have emerged as effective. Historically, survivors of severe viral pneumonia and related acute lung injury with ARDS often have near full recovery of lung function. While the pathological findings of the lungs of patients with COVID-19 can be diverse, current reports have shown significant lung fibrosis predominantly in autopsy studies. There is growing enthusiasm to study anti-fibrotic therapy for inevitable lung fibrosis, and clinical trials are underway using currently FDA-approved anti-fibrotic therapies. Given the relatively favorable outcomes of survivors of virus-mediated ARDS and the low prevalence of clinically meaningful lung fibrosis in survivors, this perspective examines if there is a rationale for testing these repurposed antifibrotic agents in COVID-19-associated lung disease.
  • Miller, D. C., Bime, C., Partharsarathy, S., & Mosier, J. M. (2020). High-Flow Oxygen Therapy Concepts: Time to Standardize Nomenclature and Avoid Confusion. Journal of intensive care medicine, 35(5), 519-523.
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    High-flow nasal oxygen systems are rapidly being adopted as an initial noninvasive treatment for acute respiratory failure. However, the term "high-flow nasal cannula" is nonspecific and leads to imprecise communication between physicians, respiratory therapists, and nurses with the potential for patient harm. In this viewpoint and a brief review of the technology, we argue for a change in nomenclature in order to reduce the chance for future clinical, administrative, and research misunderstanding surrounding high-flow nasal oxygen systems.
  • Miller, D. C., Pu, J., Kukafka, D., & Bime, C. (2020). Failure of High Flow Nasal Cannula and Subsequent Intubation Is Associated With Increased Mortality as Compared to Failure of Non-Invasive Ventilation and Mechanical Ventilation Alone: A Real-World Retrospective Analysis. Journal of intensive care medicine, 885066620968041.
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    Despite the increasing use of high flow nasal cannula oxygenation systems (HFNC) in clinical practice, little is known about its role in all cause respiratory failure as compared to traditional non-invasive ventilation (BiPAP). Furthermore, the effect of HFNC on mortality is unknown.
  • Perkins, B., Huckleberry, Y., Bogdanich, I., Leelathanalerk, A., Huckleberry, A., Konecnik, M., Miller, D. C., Bailey, M., & Bime, C. (2020). Evaluation of Inpatient Opioid Prescribing Resulting in Outpatient Opioid Prescriptions for Previously Opioid-Naive Internal Medicine Patients. Journal of pharmacy practice, 897190020961290.
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    Little data exist regarding inpatient opioid prescriptions as a potential contribution to the current opioid crisis. While pain management is essential to inpatient care, the ease of which opioids may be prescribed for all levels of pain may contribute to unnecessary inpatient exposure and new outpatient prescriptions. The aim of this study was to observe patterns of opioid prescribing potentially leading to new opioid prescriptions at hospital discharge for previously opioid-naive patients.
  • Quijada, H., Bermudez, T., Kempf, C. L., Valera, D. G., Garcia, A. N., Camp, S. M., Song, J. H., Franco, E., Burt, J. K., Sun, B., Mascarenhas, J. B., Burns, K., Gaber, A., Oita, R. C., Reyes Hernon, V., Barber, C., Moreno-Vinasco, L., Sun, X., Cress, A. E., , Martin, D., et al. (2020). Endothelial eNAMPT Amplifies Preclinical Acute Lung Injury: Efficacy of an eNAMPT-Neutralising mAb. The European respiratory journal.
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    The SARS-CoV-2/COVID-19 pandemic has highlighted the serious unmet need for effective therapies that reduce ARDS mortality. We explored whether extracellular nicotinamide phosphoribosyltransferase (eNAMPT), a ligand for Toll-like receptor 4 and a master regulator of innate immunity and inflammation, is a potential ARDS therapeutic target.
  • Rajagopal, K., Keller, S. P., Akkanti, B., Bime, C., Loyalka, P., Cheema, F. H., Zwischenberger, J. B., El Banayosy, A., Pappalardo, F., Slaughter, M. S., & Slepian, M. J. (2020). Advanced Pulmonary and Cardiac Support of COVID-19 Patients: Emerging Recommendations From ASAIO-A "Living Working Document". ASAIO journal (American Society for Artificial Internal Organs : 1992), 66(6), 588-598.
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    The severe acute respiratory syndrome (SARS)-CoV-2 is an emerging viral pathogen responsible for the global coronavirus disease 2019 (COVID)-19 pandemic resulting in significant human morbidity and mortality. Based on preliminary clinical reports, hypoxic respiratory failure complicated by acute respiratory distress syndrome is the leading cause of death. Further, septic shock, late-onset cardiac dysfunction, and multiorgan system failure are also described as contributors to overall mortality. Although extracorporeal membrane oxygenation and other modalities of mechanical cardiopulmonary support are increasingly being utilized in the treatment of respiratory and circulatory failure refractory to conventional management, their role and efficacy as support modalities in the present pandemic are unclear. We review the rapidly changing epidemiology, pathophysiology, emerging therapy, and clinical outcomes of COVID-19; and based on these data and previous experience with artificial cardiopulmonary support strategies, particularly in the setting of infectious diseases, provide consensus recommendations from ASAIO. Of note, this is a "living document," which will be updated periodically, as additional information and understanding emerges.
  • Rajagopal, K., Keller, S. P., Akkanti, B., Bime, C., Loyalka, P., Cheema, F. H., Zwischenberger, J. B., El Banayosy, A., Pappalardo, F., Slaughter, M. S., & Slepian, M. J. (2020). Advanced Pulmonary and Cardiac Support of COVID-19 Patients: Emerging Recommendations From ASAIOa Living Working Document. Circulation. Heart failure, 13(5), e007175.
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    The severe acute respiratory syndrome-CoV-2 is an emerging viral pathogen responsible for the global coronavirus disease 2019 pandemic resulting in significant human morbidity and mortality. Based on preliminary clinical reports, hypoxic respiratory failure complicated by acute respiratory distress syndrome is the leading cause of death. Further, septic shock, late-onset cardiac dysfunction, and multiorgan system failure are also described as contributors to overall mortality. Although extracorporeal membrane oxygenation and other modalities of mechanical cardiopulmonary support are increasingly being utilized in the treatment of respiratory and circulatory failure refractory to conventional management, their role and efficacy as support modalities in the present pandemic are unclear. We review the rapidly changing epidemiology, pathophysiology, emerging therapy, and clinical outcomes of coronavirus disease 2019; and based on these data and previous experience with artificial cardiopulmonary support strategies, particularly in the setting of infectious diseases, provide consensus recommendations from American Society for Artificial Internal Organs. Of note, this is a living document, which will be updated periodically, as additional information and understanding emerges.
  • Ripperger, T. J., Uhrlaub, J. L., Watanabe, M., Wong, R., Castaneda, Y., Pizzato, H. A., Thompson, M. R., Bradshaw, C., Weinkauf, C. C., Bime, C., Erickson, H. L., Knox, K., Bixby, B., Parthasarathy, S., Chaudhary, S., Natt, B., Cristan, E., Aini, T. E., Rischard, F., , Campion, J., et al. (2020). Detection, prevalence, and duration of humoral responses to SARS-CoV-2 under conditions of limited population exposure. medRxiv : the preprint server for health sciences.
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    We conducted an extensive serological study to quantify population-level exposure and define correlates of immunity against SARS-CoV-2. We found that relative to mild COVID-19 cases, individuals with severe disease exhibited elevated authentic virus-neutralizing titers and antibody levels against nucleocapsid (N) and the receptor binding domain (RBD) and the S2 region of spike protein. Unlike disease severity, age and sex played lesser roles in serological responses. All cases, including asymptomatic individuals, seroconverted by 2 weeks post-PCR confirmation. RBD- and S2-specific and neutralizing antibody titers remained elevated and stable for at least 2-3 months post-onset, whereas those against N were more variable with rapid declines in many samples. Testing of 5882 self-recruited members of the local community demonstrated that 1.24% of individuals showed antibody reactivity to RBD. However, 18% (13/73) of these putative seropositive samples failed to neutralize authentic SARS-CoV-2 virus. Each of the neutralizing, but only 1 of the non-neutralizing samples, also displayed potent reactivity to S2. Thus, inclusion of multiple independent assays markedly improved the accuracy of antibody tests in low seroprevalence communities and revealed differences in antibody kinetics depending on the viral antigen. In contrast to other reports, we conclude that immunity is durable for at least several months after SARS-CoV-2 infection.
  • Ripperger, T. J., Uhrlaub, J. L., Watanabe, M., Wong, R., Castaneda, Y., Pizzato, H. A., Thompson, M. R., Bradshaw, C., Weinkauf, C. C., Bime, C., Erickson, H. L., Knox, K., Bixby, B., Parthasarathy, S., Chaudhary, S., Natt, B., Cristan, E., El Aini, T., Rischard, F., , Campion, J., et al. (2020). Orthogonal SARS-CoV-2 Serological Assays Enable Surveillance of Low-Prevalence Communities and Reveal Durable Humoral Immunity. Immunity, 53(5), 925-933.e4.
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    We conducted a serological study to define correlates of immunity against SARS-CoV-2. Compared to those with mild coronavirus disease 2019 (COVID-19) cases, individuals with severe disease exhibited elevated virus-neutralizing titers and antibodies against the nucleocapsid (N) and the receptor binding domain (RBD) of the spike protein. Age and sex played lesser roles. All cases, including asymptomatic individuals, seroconverted by 2 weeks after PCR confirmation. Spike RBD and S2 and neutralizing antibodies remained detectable through 5-7 months after onset, whereas α-N titers diminished. Testing 5,882 members of the local community revealed only 1 sample with seroreactivity to both RBD and S2 that lacked neutralizing antibodies. This fidelity could not be achieved with either RBD or S2 alone. Thus, inclusion of multiple independent assays improved the accuracy of antibody tests in low-seroprevalence communities and revealed differences in antibody kinetics depending on the antigen. We conclude that neutralizing antibodies are stably produced for at least 5-7 months after SARS-CoV-2 infection.
  • Thakur, N., Lovinsky-Desir, S., Bime, C., Wisnivesky, J. P., & Celedón, J. C. (2020). The Structural and Social Determinants of the Racial/Ethnic Disparities in the U.S. COVID-19 Pandemic. What's Our Role?. American journal of respiratory and critical care medicine, 202(7), 943-949.
  • Bime, C., Casanova, N., Oita, R. C., Ndukum, J., Lynn, H., Camp, S. M., Lussier, Y., Abraham, I., Carter, D., Miller, E. J., Mekontso-Dessap, A., Downs, C. A., & Garcia, J. G. (2019). Development of a biomarker mortality risk model in acute respiratory distress syndrome. Critical care (London, England), 23(1), 410.
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    There is a compelling unmet medical need for biomarker-based models to risk-stratify patients with acute respiratory distress syndrome. Effective stratification would optimize participant selection for clinical trial enrollment by focusing on those most likely to benefit from new interventions. Our objective was to develop a prognostic, biomarker-based model for predicting mortality in adult patients with acute respiratory distress syndrome.
  • Goel, K., Bailey, M., Borgstrom, M., Parthasarathy, S., Natt, B., Berry, C., & Bime, C. (2019). Trends in Chronic Obstructive Pulmonary Disease Hospitalization and In-Hospital Deaths in the United States by Sex: 2005 to 2014. Annals of the American Thoracic Society, 16(3), 391-393.
  • Insel, M., Natt, B., Mosier, J., Malo, J., & Bime, C. (2019). The Association of Non-Cardiac ECMO With Influenza Incidence: A Time Series Analysis. Respiratory care, 64(3), 279-284.
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    The 2009 H1N1 influenza epidemic saw a rise in the use of extracorporeal membrane oxygenation (ECMO) as a supportive therapy for refractory ARDS. We sought to determine whether ECMO utilization follows a seasonal pattern that matches the influenza season, and whether it can further be explained by the incidence of each influenza subtype.
  • Lynn, H., Sun, X., Casanova, N., Gonzales-Garay, M., Bime, C., & Garcia, J. G. (2019). Genomic and Genetic Approaches to Deciphering Acute Respiratory Distress Syndrome Risk and Mortality. Antioxidants & redox signaling, 31(14), 1027-1052.
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    Acute respiratory distress syndrome (ARDS) is a severe, highly heterogeneous critical illness with staggering mortality that is influenced by environmental factors, such as mechanical ventilation, and genetic factors. Significant unmet needs in ARDS are addressing the paucity of validated predictive biomarkers for ARDS risk and susceptibility that hamper the conduct of successful clinical trials in ARDS and the complete absence of novel disease-modifying therapeutic strategies. The current ARDS definition relies on clinical characteristics that fail to capture the diversity of disease pathology, severity, and mortality risk. We undertook a comprehensive survey of the available ARDS literature to identify genes and genetic variants (candidate gene and limited genome-wide association study approaches) implicated in susceptibility to developing ARDS in hopes of uncovering novel biomarkers for ARDS risk and mortality and potentially novel therapeutic targets in ARDS. We further attempted to address the well-known health disparities that exist in susceptibility to and mortality from ARDS. Bioinformatic analyses identified 201 ARDS candidate genes with pathway analysis indicating a strong predominance in key evolutionarily conserved inflammatory pathways, including reactive oxygen species, innate immunity-related inflammation, and endothelial vascular signaling pathways. Future studies employing a system biology approach that combines clinical characteristics, genomics, transcriptomics, and proteomics may allow for a better definition of biologically relevant pathways and genotype-phenotype connections and result in improved strategies for the sub-phenotyping of diverse ARDS patients molecular signatures. These efforts should facilitate the potential for successful clinical trials in ARDS and yield a better fundamental understanding of ARDS pathobiology.
  • Bime, C., Malo, J., Mosier, J. M., Natt, B., & Insel, M. (2018). The Association of Non-Cardiac ECMO With Influenza Incidence: A Time Series Analysis.. Respiratory Care.
  • Bime, C., Pouladi, N., Sammani, S., Batai, K., Casanova, N., Zhou, T., Kempf, C. L., Sun, X., Camp, S. M., Wang, T., Kittles, R. A., Lussier, Y. A., Jones, T. K., Reilly, J. P., Meyer, N. J., Christie, J. D., Karnes, J. H., Gonzalez-Garay, M., Christiani, D. C., , Yates, C. R., et al. (2018). Genome-Wide Association Study in African Americans with Acute Respiratory Distress Syndrome Identifies the Selectin P Ligand Gene as a Risk Factor. American journal of respiratory and critical care medicine, 197(11), 1421-1432.
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    Genetic factors are involved in acute respiratory distress syndrome (ARDS) susceptibility. Identification of novel candidate genes associated with increased risk and severity will improve our understanding of ARDS pathophysiology and enhance efforts to develop novel preventive and therapeutic approaches.
  • Dill, J., Bixby, B., Ateeli, H., Sarsah, B., Goel, K., Buckley, R., Finkelshteyn, I., Thajudeen, B., Kadambi, P. V., & Bime, C. (2018). Renal replacement therapy in patients with acute respiratory distress syndrome: a single-center retrospective study. International journal of nephrology and renovascular disease, 11, 249-257.
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    Patients with acute respiratory distress syndrome (ARDS) who develop acute kidney injury have increased mortality and frequently require renal replacement therapy (RRT). The optimal timing for initiation of RRT after onset of ARDS to improve survival is not known.
  • Kempf, C., Bime, C., Zhou, T., Pouladi, N., Sammani, S., Casanova, N., Batai, K., Batai, K., Casanova, N., Sammani, S., Pouladi, N., Zhou, T., Kempf, C., & Bime, C. (2018). GWAS in African Americans identifies the Selectin P Ligand gene, SELPLG, as an ARDS risk gene. American J Respiratory Critical Care Medicine.
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    Rationale: Genetic factors are involved in acute respiratory distress syndrome (ARDS) susceptibility. Identification of novel candidate genes associated with increased risk and severity will improve our understanding of ARDS pathophysiology and enhance efforts to develop novel preventive and therapeutic approaches.Objectives: To identify genetic susceptibility targets for ARDS.Methods: A genome-wide association study was performed on 232 African American patients with ARDS and 162 at-risk control subjects. The Identify Candidate Causal SNPs and Pathways platform was used to infer the association of known gene sets with the top prioritized intragenic SNPs. Preclinical validation of SELPLG (selectin P ligand gene) was performed using mouse models of LPS- and ventilator-induced lung injury. Exonic variation within SELPLG distinguishing patients with ARDS from sepsis control subjects was confirmed in an independent cohort.Measurements and Main Results: Pathway prioritization analysis identified a nonsynonymous coding SNP (rs2228315) within SELPLG, encoding P-selectin glycoprotein ligand 1, to be associated with increased susceptibility. In an independent cohort, two exonic SELPLG SNPs were significantly associated with ARDS susceptibility. Additional support for SELPLG as an ARDS candidate gene was derived from preclinical ARDS models where SELPLG gene expression in lung tissues was significantly increased in both ventilator-induced (twofold increase) and LPS-induced (5.7-fold increase) murine lung injury models compared with controls. Furthermore, Selplg−/− mice exhibited significantly reduced LPS-induced inflammatory lung injury compared with wild-type C57/B6 mice. Finally, an antibody that neutralizes P-selectin glycoprotein ligand 1 significantly attenuated LPS-induced lung inflammation.Conclusions: These findings identify SELPLG as a novel ARDS susceptibility gene among individuals of European and African descent.
  • Roman, J., Viegi, G., Schenker, M., Ojeda, V. D., Pérez-Stable, E. J., Nemery, B., Annesi-Maesano, I., Patel, S. R., La Grutta, S., Holguin, F., Moughrabieh, A., Bime, C., Lindberg, A., Migliori, G. B., de Vries, G., Ramírez, J., Aliberti, S., Feldman, C., & Celedón, J. C. (2018). Research Needs on Respiratory Health in Migrant and Refugee Populations. An Official American Thoracic Society and European Respiratory Society Workshop Report. Annals of the American Thoracic Society, 15(11), 1247-1255.
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    Migrants represent a diverse population comprising workers, students, undocumented individuals, and refugees. Worldwide, approximately 1 billion people were considered migrants in 2016. Notably, about 65 million of these migrants were forcibly displaced from their homes, and 20 million were considered refugees. While the geopolitical consequences of such migration continue to be considered, less is known about the impact of these events on the respiratory health of migrants and refugees. In recognition of this knowledge gap, the American Thoracic Society and the European Respiratory Society brought together investigators with diverse and relevant expertise to participate in a workshop and develop a consensus on research needs on the respiratory health of migrants and refugees. The workshop focused on environmental and occupational hazards, chronic noninfectious diseases, and respiratory infectious diseases, which were presented by experts in three distinct sessions, each culminating with panel discussions. A writing committee collected summaries prepared by speakers and other participants, and the information was collated into a single document. Recommendations were formulated, and differences were resolved by discussion and consensus. The group identified important areas of research need, while emphasizing that reducing the burden of pulmonary, critical care, and sleep disorders in migrants and refugees will require a concerted effort by all stakeholders. Using best research practices, considering how research impacts policies affecting migrant and refugee populations, and developing new approaches to engage and fund trainees, clinical investigators, and public health practitioners to conduct high-quality research on respiratory health of migrants and refugees is essential.
  • Shrestha, M. P., Bime, C., & Taleban, S. (2018). Decreasing Clostridium difficile-Associated Fatality Rates Among Hospitalized Patients in the United States: 2004-2014. The American journal of medicine, 131(1), 90-96.
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    Clostridium difficile infection has emerged as a major public health problem in the United States over the last 2 decades. We examined the trends in the C. difficile-associated fatality rate, hospital length of stay, and hospital charges over the last decade.
  • Bime, C., Fiero, M., Lu, Z., Oren, E., Berry, C. E., Parthasarathy, S., & Garcia, J. G. (2017). High Positive End-Expiratory Pressure Is Associated with Improved Survival in Obese Patients with Acute Respiratory Distress Syndrome. The American journal of medicine, 130(2), 207-213.
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    In acute respiratory distress syndrome, minimizing lung injury from repeated collapse and reopening of alveoli by applying a high positive end-expiratory pressure improves oxygenation without influencing mortality. Obesity causes alveolar atelectasis, thus suggesting that a higher positive end-expiratory pressure might be more protective among the obese. We hypothesized that the effect of applying a high positive end-expiratory pressure on mortality from acute respiratory distress syndrome would differ by obesity status.
  • Bime, C., Natt, B., Desai, H., Poongkunran, C., & Borgstrom, M. (2017). Reply: Racial Disparities in Acute Respiratory Distress Syndrome Mortality. Annals of the American Thoracic Society, 14(2), 300-301.
  • Natt, B., Desai, H., Bime, C., Dill, J., Dalen, J. E., & Alpert, J. S. (2017). The Reply. The American journal of medicine, 130(4), e165.
  • Shrestha, M. P., Bime, C., & Taleban, S. (2017). Decreasing Clostridium difficile-Associated Fatality Rates Among Hospitalized Patients in the United States: 2004-2014. Am J Med. doi:10.1016/j.amjmed.2017.07.022
  • Toosizadeh, N., Berry, C., Bime, C., Najafi, B., Kraft, M., & Mohler, J. (2017). Assessing upper-extremity motion: An innovative method to quantify functional capacity in patients with chronic obstructive pulmonary disease. PloS one, 12(2), e0172766.
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    Assessment of functional capacity is important in directing chronic obstructive pulmonary disease (COPD) care (e.g., rehabilitation and discharge readiness), and in predicting outcomes (e.g., exacerbation, hospitalization, and mortality). The 6-minute walk distance (6MWD) test for functional capacity assessment, may be time-consuming and burdensome.
  • Bime, C., Gerald, J. K., Wei, C. Y., Holbrook, J. T., Teague, W. G., Wise, R. A., & Gerald, L. B. (2016). Measurement characteristics of the childhood Asthma-Control Test and a shortened, child-only version. NPJ primary care respiratory medicine, 26, 16075.
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    The childhood Asthma-Control Test (C-ACT) is validated for assessing asthma control in paediatric asthma. Among children aged 4-11 years, the C-ACT requires the simultaneous presence of both parent and child. There is an unmet need for a tool that can be used to assess asthma control in children when parents or caregivers are not present such as in the school setting. We assessed the psychometric properties and estimated the minimally important difference (MID) of the C-ACT and a modified version, comprising only the child responses (C-ACTc). Asthma patients aged 6-11 years (n=161) from a previously completed multicenter randomised trial were included. Demographic information, spirometry and questionnaire scores were obtained at baseline and during follow-up. Participants or their guardians kept a daily asthma diary. Internal consistency reliabilities of the C-ACT and C-ACTc were 0.76 and 0.67 (Cronbach's α), respectively. Test-retest reliabilities of the C-ACT and C-ACTc were 0.72 and 0.66 (intra-class correlation), respectively. Significant correlations were noted between C-ACT scores and ACQ scores (Spearman's correlation r=-0.56, 95% CI (-0.66, -0.44), P
  • Bime, C., Poongkunran, C., Borgstrom, M., Natt, B., Desai, H., Parthasarathy, S., & Garcia, J. G. (2016). Racial Differences in Mortality from Severe Acute Respiratory Failure in the United States, 2008-2012. Annals of the American Thoracic Society, 13(12), 2184-2189.
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    Racial disparities in health and healthcare in the United States are well documented and are increasingly recognized in acute critical illnesses such as sepsis and acute respiratory failure.
  • Bime, C., Zhou, T., Wang, T., Slepian, M. J., Garcia, J. G., & Hecker, L. (2016). Reactive oxygen species-associated molecular signature predicts survival in patients with sepsis. Pulmonary circulation, 6(2), 196-201.
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    Sepsis-related multiple organ dysfunction syndrome is a leading cause of death in intensive care units. There is overwhelming evidence that oxidative stress plays a significant role in the pathogenesis of sepsis-associated multiple organ failure; however, reactive oxygen species (ROS)-associated biomarkers and/or diagnostics that define mortality or predict survival in sepsis are lacking. Lung or peripheral blood gene expression analysis has gained increasing recognition as a potential prognostic and/or diagnostic tool. The objective of this study was to identify ROS-associated biomarkers predictive of survival in patients with sepsis. In-silico analyses of expression profiles allowed the identification of a 21-gene ROS-associated molecular signature that predicts survival in sepsis patients. Importantly, this signature performed well in a validation cohort consisting of sepsis patients aggregated from distinct patient populations recruited from different sites. Our signature outperforms randomly generated signatures of the same signature gene size. Our findings further validate the critical role of ROSs in the pathogenesis of sepsis and provide a novel gene signature that predicts survival in sepsis patients. These results also highlight the utility of peripheral blood molecular signatures as biomarkers for predicting mortality risk in patients with sepsis, which could facilitate the development of personalized therapies.
  • Desai, H., Natt, B., Bime, C., Dill, J., Dalen, J. E., & Alpert, J. S. (2016). Pulmonary Embolism with Right Ventricular Dysfunction: Who Should Receive Thrombolytic Agents?. The American journal of medicine.
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    Appropriate management of pulmonary embolism patients with right ventricular dysfunction is uncertain. Recent guidelines have stressed the need for more data on the use of thrombolytic agents in the stable pulmonary embolism patient with right ventricular dysfunction. The objective of this study is to investigate the hypothesis that thrombolytic therapy in hemodynamically stable pulmonary embolism patients with right ventricular dysfunction is not associated with improved mortality.
  • Desai, H., Natt, B., Kim, S. S., & Bime, C. (2016). Decreased In-hospital Mortality after Lobectomy Using Video-Assisted Thoracoscopic Surgery Compared to Open Thoracotomy.. Annals of American Thoracic Society.
  • Desai, H., Natt, B., Kim, S., & Bime, C. (2016). Decreased In-hospital Mortality after Lobectomy Using Video-Assisted Thoracoscopic Surgery Compared to Open Thoracotomy. Annals of the American Thoracic Society.
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    There is a paucity of data regarding the optimal surgical approach for lung lobectomy. Lobectomy performed by video-assisted thoracoscopic surgery (VATS) has been associated with lower morbidity as compared to thoracotomy. However, no multicenter studies have shown improved mortality with VATS lobectomy compared to open surgical lobectomy.
  • Ghazala, L., Bime, C., Cortopassi, F., Golden, T., & Berry, C. E. (2016). Inhaler preferences in older adults with chronic lung disease. Southwest Journal of Pulmonary and Critical Care Medicine, 13, 225-234.
  • Huthayfa, A., Bime, C., & Gerald, J. K. (2016). Tucson Critical Care Journal Club: Albumin Use in the Critical Care Unit. Southwest J Pulm Crit Care.
  • Malaisamy, S., Dalal, B., Bimenyuy, C., & Soubani, A. O. (2016). The clinical and radiologic features of nodular pulmonary sarcoidosis. Lung, 187(1), 9-15.
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    Nodular sarcoidosis is an uncommon presentation of sarcoidosis. Our objective was to describe the clinical characteristics of a large cohort of patients with nodular sarcoidosis.
  • Natt, B. S., Desai, H., Singh, N., Poongkunran, C., Parthasarathy, S., & Bime, C. (2016). Extracorporeal Membrane Oxygenation for ARDS: National Trends in the United States 2008-2012. Respiratory care, 61(10), 1293-8.
    More info
    Recent advances in technology and protocols have made the use of extracorporeal membrane oxygenation (ECMO) a viable rescue therapy for patients with ARDS who present with refractory hypoxemia. Despite the lack of strong evidence supporting the use of ECMO in ARDS, its use seems to be increasing. We sought to determine recent trends in the use of ECMO for ARDS. We also assessed trends in mortality among patients with ARDS in whom ECMO was used.
  • Pouladi, N., Bime, C., Garcia, J. G., & Lussier, Y. A. (2016). Complex genetics of pulmonary diseases: lessons from genome-wide association studies and next-generation sequencing. Translational research : the journal of laboratory and clinical medicine, 168, 22-39.
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    The advent of high-throughput technologies has provided exceptional assistance for lung scientists to discover novel genetic variants underlying the development and progression of complex lung diseases. However, the discovered variants thus far do not explain much of the estimated heritability of complex lung diseases. Here, we review the literature of successfully used genome-wide association studies (GWASs) and identified the polymorphisms that reproducibly underpin the susceptibility to various noncancerous complex lung diseases or affect therapeutic responses. We also discuss the inherent limitations of GWAS approaches and how the use of next-generation sequencing technologies has furthered our understanding about the genetic determinants of these diseases. Next, we describe the contribution of the metagenomics to understand the interactions of the airways microbiome with lung diseases. We then highlight the urgent need for new integrative genomics-phenomics methods to more effectively interrogate and understand multiple downstream "omics" (eg, chromatin modification patterns). Finally, we address the scarcity of genetic studies addressing under-represented populations such as African Americans and Hispanics.
  • Dill, J., Gerald, J. K., Bime, C., & Knepler, J. L. (2015). September 2015 Tucson pulmonary journal club: genomic classifier for lung cancer. .. Southwest J Pulm Crit Care. doi:doi: http://dx.doi.org/10.13175/swjpcc125-15 PDF
  • Dill, J., Gerald, J. K., Bime, C., & Knepler, J. L. (2015). Tucson pulmonary journal club: genomic classifier for lung cancer.. Southwest J Pulm Crit Care.
  • Dill, J., Gerald, J., & Knepler, J. (2015). A bronchial genomic classifier for the diagnostic evaluation of lung cancer.. Southwest Journal of Pulmonary & Critical Care, 11(3), 119-20.
  • Ganesh, A., Bime, C., & Gerald, J. (2015). Fibrinolysis for patients with intermediate-risk pulmonary embolism. Southwest Journal of Pulmonary & Critical Care, 10(2), 97-8.
  • Ganesh, A., Bime, C., & Gerald, J. K. (2015). Tucson pulmonary journal club: fibrinolysis for Pulmonary Embolus. Southwest J Pulm Crit Care.
  • Hecker, L., Bime, C., Zhou, T., Wang, T., Slepian, M., & Garcia, G. (2015). Reactive oxygen species-associated molecular signature predicts survival in patients with sepsis. Pulmonary Circulation, 0(0).
  • Kempf, C., Bime, C., Zhou, T., Pouladi, N., Sammani, S., Casanova, N., Batai, K., Batai, K., Sammani, S., Casanova, N., Pouladi, N., Zhou, T., Kempf, C., & Bime, C. (2018). GWAS in African Americans identifies the Selectin P Ligand gene, SELPLG, as an ARDS risk gene. American J Respiratory Critical Care Medicine.
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    Rationale: Genetic factors are involved in acute respiratory distress syndrome (ARDS) susceptibility. Identification of novel candidate genes associated with increased risk and severity will improve our understanding of ARDS pathophysiology and enhance efforts to develop novel preventive and therapeutic approaches.Objectives: To identify genetic susceptibility targets for ARDS.Methods: A genome-wide association study was performed on 232 African American patients with ARDS and 162 at-risk control subjects. The Identify Candidate Causal SNPs and Pathways platform was used to infer the association of known gene sets with the top prioritized intragenic SNPs. Preclinical validation of SELPLG (selectin P ligand gene) was performed using mouse models of LPS- and ventilator-induced lung injury. Exonic variation within SELPLG distinguishing patients with ARDS from sepsis control subjects was confirmed in an independent cohort.Measurements and Main Results: Pathway prioritization analysis identified a nonsynonymous coding SNP (rs2228315) within SELPLG, encoding P-selectin glycoprotein ligand 1, to be associated with increased susceptibility. In an independent cohort, two exonic SELPLG SNPs were significantly associated with ARDS susceptibility. Additional support for SELPLG as an ARDS candidate gene was derived from preclinical ARDS models where SELPLG gene expression in lung tissues was significantly increased in both ventilator-induced (twofold increase) and LPS-induced (5.7-fold increase) murine lung injury models compared with controls. Furthermore, Selplg−/− mice exhibited significantly reduced LPS-induced inflammatory lung injury compared with wild-type C57/B6 mice. Finally, an antibody that neutralizes P-selectin glycoprotein ligand 1 significantly attenuated LPS-induced lung inflammation.Conclusions: These findings identify SELPLG as a novel ARDS susceptibility gene among individuals of European and African descent.
  • Malaisamy, S., Dalal, B., Bimenyuy, C., & Soubani, A. O. (2015). The clinical and radiologic features of nodular pulmonary sarcoidosis. Lung, 187(1), 9-15.
    More info
    Nodular sarcoidosis is an uncommon presentation of sarcoidosis. Our objective was to describe the clinical characteristics of a large cohort of patients with nodular sarcoidosis.
  • Poongkunran, C., John, S. G., Kannan, A. S., Shetty, S., Bime, C., & Parthasarathy, S. (2015). A meta-analysis of sleep-promoting interventions during critical illness. The American journal of medicine, 128(10), 1126-1137.e1.
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    Sleep quality and quantity are severely reduced in critically ill patients receiving mechanical ventilation with a potential for adverse consequences. Our objective was to synthesize the randomized controlled trials (RCTs) that measured the efficacy of sleep-promoting interventions on sleep quality and quantity in critically ill patients.
  • Bime, C., Sun, K., Ulliman, E., & Hypes, C. (2014). Medical image of the week: secondary pneumonia presenting as hemoptysis. Southwest J Pulm Crit Care.
  • Natt, B., Berry, C. E., Bime, C., & Gerald, J. K. (2014). Tucson critical care journal club: early goal-directed therapy. Southwest J Pulm Crit Care.
  • Natt, B., Berry, C. E., Bime, C., & Gerald, J. K. (2014). Tucson critical care journal club: early goal-directed therapy. Southwest Journal of Pulmonary and Critical Care.
  • Strawter, C., Berry, C. E., Bime, C., & Gerald, J. K. (2014). Tucson critical care journal club: esmolol in septic shock. Southwest J Pulm Crit Care.
  • Bime, C., Nguyen, J., & Wise, R. A. (2012). Measures of asthma control. Current opinion in pulmonary medicine, 18(1), 48-56.
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    Over the past decade, the concept of asthma control as distinct from asthma severity has been clearly defined. Well controlled asthma is the goal of therapy in all asthma patients. This review is a comprehensive description of the tools currently available for a methodical assessment of different aspects of asthma control in clinical practice and research.
  • Bime, C., Wei, C. Y., Holbrook, J. T., Sockrider, M. M., Revicki, D. A., & Wise, R. A. (2012). Asthma symptom utility index: reliability, validity, responsiveness, and the minimal important difference in adult asthmatic patients. The Journal of allergy and clinical immunology, 130(5), 1078-84.
    More info
    The evaluation of asthma symptoms is a core outcome measure in asthma clinical research. The Asthma Symptom Utility Index (ASUI) was developed to assess the frequency and severity of asthma symptoms. The psychometric properties of the ASUI are not well characterized, and a minimal important difference (MID) is not established.
  • Bime, C., Wei, C. Y., Holbrook, J., Smith, L. J., & Wise, R. A. (2012). Association of dietary soy genistein intake with lung function and asthma control: a post-hoc analysis of patients enrolled in a prospective multicentre clinical trial. Primary care respiratory journal : journal of the General Practice Airways Group, 21(4), 398-404.
    More info
    Broad dietary patterns have been linked to asthma but the relative contribution of specific nutrients is unclear. Soy genistein has important anti-inflammatory and other biological effects that might be beneficial in asthma. A positive association was previously reported between soy genistein intake and lung function but not with asthma exacerbations.
  • Hammad, H., Bimenyuy, C., Rau, S., & Siddiqui, F. (2006). Upper Extremity Venous Thrombosis after Infliximab Therapy. American Journal of Gastroenterology.

Presentations

  • Bime, C., Gerald, L. B., Stern, D., Garcia, D. L., & Lowe, A. (2018, May). Home based exercise intervention versus remote asthma care guidance via telephone/text message in obese asthmatics. American Thoracic Society International Conference. San Diego, CA: American Thoracic Society.
  • Lowe, A., Garcia, D. L., Stern, D., Gerald, L. B., & Bime, C. (2018, May). Feasibility of home based exercise intervention with remote guidance for obese asthmatics. American Thoracic Society International Conference. San Diego, CA: American Thoracic Society.

Poster Presentations

  • Shrestha, M. P., Bime, C., & Taleban, S. (2017, Oct/ Fall). Decreasing Clostridium difficile-Associated Mortality Rates Among Hospitalized Patients in the Unites States: 2004-2014. WCOG. Orlando: ACG.
  • Desai, H., Natt, B., & Bime, C. (2016, May/Spring). Decreased in-hospital mortality after lobectomy using video-assisted thoracoscopic surgery compared to open thoracotomy. ATS International Conference. San Francisco, CA.
  • Berry, C. E., Berry, C. E., Ghazala, L., Ghazala, L., Mohler, M. J., Mohler, M. J., Bime, C., & Bime, C. (2015, June). Frailty features are common in ambulatory patients with COPD and may be associated with respiratory muscle weakness. COPD9USA. Chicago, IL.
  • Ghazala*, L., Ghazala*, L., Ghazala*, L., Gordon, J. S., Gordon, J. S., Gordon, J. S., Berry, C. E., Berry, C. E., Berry, C. E., Bime, C., Bime, C., Bime, C., Gerald, L. B., Gerald, L. B., Gerald, L. B., Golden*, T., Golden*, T., Golden*, T., Sekhon*, K., , Sekhon*, K., et al. (2015, October). Cross-section survey of electronic cigarette use among ambulatory COPD patients. CHEST.
  • Ghazala, L., Bime, C., Cortopassi, F., Baalachandran, R., Oren, E., Berry, C. E., Ghazala, L., Bime, C., Cortopassi, F., Baalachandran, R., Oren, E., & Berry, C. E. (2015, May). Inhaler Device Preferences In Older Adults With Chronic Lung Disease. American Thoracic Society. Denver, CO.
  • Natt, B., Desai, H., Poongkunran, C., & Bime, C. (2015, October/Fall). Extracorporeal Membrane Oxygenator Use in ARDS. CHEST Annual Meeting. Montreal, Québec, Canada.
  • Natt, B., Desai, H., Singh, N., Poongkunran, C., & Bime, C. (2015, October/Fall). ARDS Prevalence and Survival Trends in the United States; 2008-2012. CHEST Annual Meeting. Montreal, Québec, Canada.
  • Toosizahdeh, N., Berry, C. E., Bime, C., Najafi, B., Mohler, M. J., Toosizahdeh, N., Berry, C. E., Bime, C., Najafi, B., & Mohler, M. J. (2015, May). An Association between Frailty and Pulmonary Function in Patients with Chronic Obstructive Pulmonary Disease (COPD) – Application of a Routine Frailty Assessment Approach using Wearable Technology. American Aging Association. Marina del Rey, CA.

Others

  • Bime, C., Bhupinder, N., Singh, N., Desai, H., Poongkunran, C., Parthasarathy, S., & Garcia, G. (2015, Jan). Racial and ethnic differences in Acute Respiratory Distress Syndrome mortality in the United States.
  • Bime, C., Oren, E., Fierro, M., Berry, C., Parthasarathy, S., & Garcia, G. (2015, Jan). Obesity, Positive End-Expiratory Pressure, and Acute Respiratory Distress Syndrome Survival - Submitted to Journal of Critical Care Medicine. Journal of Critical Care Medicine.
  • Bime, C., Wei, R., & Gerald, J. (2015, Jan). Measurement characteristics of the Childhood Asthma Control Test (C-ACT) and a shortened, child-only version (C-ACTc).. Nature Publication Journals Primary Care Respiratory Medicine.
  • Natt, B., Singh, N., Desai, H., Poongkunran, C., Parthasarathy, S., & Bime, C. (2015, Jan). Extracorporeal Membrane Oxygenation for Acute Respiratory Distress Syndrome: National Trends in the United States 2008-2012. Respiratory Care Journal.
  • Toosizahdeh, N., Berry, C., Bime, C., Najafi, B., & Mohler, J. (2015, Jan). An Association between Frailty and Pulmonary Function in Patients with Chronic Obstructive Pulmonary Disease (COPD) – Application of a Routine Frailty Assessment Approach using Wearable Technology. Journal of COPD.
  • Bime, C., Oren, E., Fierro, M., Berry, C., Parthasarathy, S., & Garcia, G. (2015, March). High versus low PEEP and ARDS survival: Effect modification by BMI. ATS 2015 Denver, CO.
  • Chazala, L., Bime, C., Baalachandran, R., Cortopassi, F., Oren, E., Golden, T., & Berry, C. (2015, March). Inhaler Device Preferences in Older Adults with Chronic Lung Disease. ATS, Denver, CO.
  • Desai, H., Poongkunran, C., Singh, N., & Bime, C. (2016, February). ARDS Prevalence and Survival Trends in the United States; 2008-2012. ACCP 2015 Montreal, Canada.
  • H, D., N, B., & N, S. (2015, October). Extracorporeal Membrane Oxygenator use in ARDS; trends from 2008-2012. ACCP 2015 Montreal, Canada.
  • Bimenyuy, C., & Kuaban, C. (2001, 2001). The correlation between radiographic aspects of pulmonary tuberculosis and degree of HIV associated immune-suppression. MD. Thesis Presentation FMSB.

Profiles With Related Publications

  • Lynn B Gerald
  • Judith S Gordon
  • Bijan Najafi
  • James L Knepler
  • Joe K Gerald
  • Cameron D Hypes
  • Bhupinder S Natt
  • Ting Wang
  • Sasha Taleban
  • Saad Sammani
  • Nancy Casanova
  • Ken Batai
  • Jarrod M Mosier
  • Joshua Malo

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