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Merkow JS, Nelson EJ. Intraoperative Acute Respiratory Failure in an Immunocompromised Patient with Human Metapneumovirus. AMERICAN JOURNAL OF CASE REPORTS 2018; 19:301-303. [PMID: 29545513 PMCID: PMC5869965 DOI: 10.12659/ajcr.907604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Patient: Male, 31 Final Diagnosis: Pneumonia from Human Metapneumovirus pulmonary infection Symptoms: Cough • fatigue Medication: — Clinical Procedure: Hernia repair Specialty: Anesthesiology
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Affiliation(s)
- Justin S Merkow
- Department of Anesthesia, University of Colorado School of Medicine, Aurora, CO, USA
| | - Erik J Nelson
- Department of Anesthesia, University of Colorado School of Medicine, Aurora, CO, USA
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Frickmann H, Jungblut S, Hirche TO, Groß U, Kuhns M, Zautner AE. The influence of virus infections on the course of COPD. Eur J Microbiol Immunol (Bp) 2012; 2:176-85. [PMID: 24688763 DOI: 10.1556/eujmi.2.2012.3.2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Accepted: 05/08/2012] [Indexed: 01/30/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is extensively influenced by viral infections. The mechanisms of how viral agents affect the pathogenesis and prognosis of COPD are numerous. In general, patients with infectious exacerbations are characterized by longer hospitalization periods and greater impairment of several lung function parameters than those with non-infectious exacerbations. Prodromal, clinical, and outcome parameters fail to distinguish virally from non-virally induced illnesses in cases of exacerbations. The importance of infections with respiratory and non-respiratory viral agents for pathogenesis and course of COPD is detailed. Human adenovirus, non-respiratory viruses including human immunodeficiency virus, human metapneumovirus, influenza virus, human rhinovirus, and respiratory syncytial virus are especially stressed.
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Mendes G, Soares AR, Sigiliano L, Machado F, Kaiser C, Romeiro N, Gestinari L, Santos N, Romanos MTV. In vitro anti-HMPV activity of meroditerpenoids from marine alga Stypopodium zonale (Dictyotales). Molecules 2011; 16:8437-50. [PMID: 21986522 PMCID: PMC6264370 DOI: 10.3390/molecules16108437] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Revised: 09/09/2011] [Accepted: 09/29/2011] [Indexed: 11/30/2022] Open
Abstract
In this paper, we evaluated the antiviral activity against HMPV replication of crude extract of the marine algae Stypopodium zonale and of two meroditerpenoids obtained from it, atomaric acid and epitaondiol, and a methyl ester derivative of atomaric acid. Their selectivity indexes were 20.78, >56.81, 49.26 and 12.82, respectively. Compared to ribavirin, the substances showed a relatively low cytotoxicity on LLC-MK2 cells, with a significant antiviral activity, inhibiting at least 90% of viral replication in vitro, which demonstrates the potential of these marine natural products to combat infections caused by HMPV in vitro.
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Affiliation(s)
- Gabriella Mendes
- Laboratório Experimental de Drogas Antivirais e Citotóxicas (LEDAC), Departamento de Virologia do, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro (UFRJ), CCS, Bloco I, Caixa Postal 68040, 21941-590 Rio de Janeiro, RJ, Brasil
- Laboratório de Viroses Respiratórias, Entéricas e Oculares, Departamento de Virologia do Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro (UFRJ), CCS, Bloco I, Caixa Postal 68040, 21941-590 Rio de Janeiro, RJ, Brasil
| | - Angélica Ribeiro Soares
- Grupo de Produtos Naturais de Organismos Aquáticos (GPNOA), Núcleo em Ecologia e Desenvolvimento Socioambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro (UFRJ), CCS, Bloco I, Caixa Postal 68040, 21941-590 Rio de Janeiro, RJ, Brasil
| | - Lorena Sigiliano
- Grupo de Produtos Naturais de Organismos Aquáticos (GPNOA), Núcleo em Ecologia e Desenvolvimento Socioambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro (UFRJ), CCS, Bloco I, Caixa Postal 68040, 21941-590 Rio de Janeiro, RJ, Brasil
| | - Fernanda Machado
- Grupo de Produtos Naturais de Organismos Aquáticos (GPNOA), Núcleo em Ecologia e Desenvolvimento Socioambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro (UFRJ), CCS, Bloco I, Caixa Postal 68040, 21941-590 Rio de Janeiro, RJ, Brasil
| | - Carlos Kaiser
- Instituto de Química, Universidade Federal do Rio de Janeiro (UFRJ), CCS, Bloco I, Caixa Postal 68040, 21941-590 Rio de Janeiro, RJ, Brasil
| | - Nelilma Romeiro
- Grupo de Produtos Naturais de Organismos Aquáticos (GPNOA), Núcleo em Ecologia e Desenvolvimento Socioambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro (UFRJ), CCS, Bloco I, Caixa Postal 68040, 21941-590 Rio de Janeiro, RJ, Brasil
| | - Lísia Gestinari
- Grupo de Produtos Naturais de Organismos Aquáticos (GPNOA), Núcleo em Ecologia e Desenvolvimento Socioambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro (UFRJ), CCS, Bloco I, Caixa Postal 68040, 21941-590 Rio de Janeiro, RJ, Brasil
| | - Norma Santos
- Laboratório de Viroses Respiratórias, Entéricas e Oculares, Departamento de Virologia do Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro (UFRJ), CCS, Bloco I, Caixa Postal 68040, 21941-590 Rio de Janeiro, RJ, Brasil
| | - Maria Teresa Villela Romanos
- Laboratório Experimental de Drogas Antivirais e Citotóxicas (LEDAC), Departamento de Virologia do, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro (UFRJ), CCS, Bloco I, Caixa Postal 68040, 21941-590 Rio de Janeiro, RJ, Brasil
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Human metapneumovirus establishes persistent infection in the lungs of mice and is reactivated by glucocorticoid treatment. J Virol 2009; 83:6837-48. [PMID: 19357175 DOI: 10.1128/jvi.00379-09] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Human metapneumovirus (HMPV) has been identified as a worldwide agent of serious upper and lower respiratory tract infections in infants and young children. HMPV is second only to respiratory syncytial virus (RSV) as a leading cause of bronchiolitis, and, like RSV, consists of two major genotypes that cocirculate and vary among communities year to year. Children who have experienced acute HMPV infection may develop sequelae of wheezing and asthma; however, the features contributing to this pathology remain unknown. A possible mechanism for postbronchiolitis disease is that HMPV might persist in the lung providing a stimulus that could contribute to wheezing and asthma. Using immunohistochemistry to identify HMPV-infected cells in the lungs of mice, we show that HMPV mediates biphasic replication in respiratory epithelial cells then infection migrates to neuronal processes that innervate the lungs where the virus persists with no detectable infection in epithelial cells. After glucocorticoid treatment, the virus is reactivated from neural fibers and reinfects epithelial cells. The findings show that HMPV persists in neural fibers and suggest a mechanism for disease chronicity that has important implications for HMPV disease intervention strategies.
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