Mycobacterium avium subspecies hominissuis (MAH) is an opportunistic pathogen and causes nontuberculous infections in immune compromised individuals, an emerging problem that has been recognized worldwide. Understanding the pathogenesis of this organism is important as better treatment and prevention options are needed. Microaggregates form when two or more bacterial cells join at a surface. MAH forms micgroaggregates to promote its entry in to epithelial cells and cause infection. The mechanisms involved in the interaction between the microaggregate and the host are becoming clearer as the molecules involved in this process are being uncovered. Microaggregate Invasion Protein-1 (MIP-1) is now described as having a major role in the invasion of epithelial cells by MAH.
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http://dx.doi.org/10.1080/21505594.2015.1088633 | DOI Listing |
AME Case Rep
October 2024
Division of Respiratory and Critical Care Medicine, Jiangyin People's Hospital Affiliated to Nantong, Jiangyin, China.
Background: There are hundreds of pathogens that cause lung infections. Compared to infections caused by a single pathogen, mixed infections account for a larger proportion of pulmonary infections and have a more severe clinical presentation, while treatment options differ between the two. We aimed to explore the advantages of metagenomic next-generation sequencing (mNGS) in the diagnosis and treatment of mixed infections.
View Article and Find Full Text PDFBMC Infect Dis
January 2025
Department of Respiratory Medicine, Faculty of Medicine, Hokkaido University, North 15 West 7, Kita-ku, Sapporo, 060-8638, Japan.
Background: Mycobacterium avium complex (MAC) is a common pathogen causing non-tuberculous mycobacterial infections, primarily affecting the lungs. Disseminated MAC disease occurs mainly in immunocompromised individuals, such as those with acquired immunodeficiency syndrome, hematological malignancies, or those positive for anti-interferon-γ antibodies. However, its occurrence in solid organ transplant recipients is uncommon.
View Article and Find Full Text PDFMicroorganisms
December 2024
Department of Laboratory Medicine, Korea University Anam Hospital, Korea University College of Medicine, Seoul 02841, Republic of Korea.
Background: Accurate and timely diagnosis of mycobacterial infections, including complex (MTBC) and nontuberculous mycobacteria (NTM), is crucial for effective disease management.
Methods: This study evaluated the performance of the NeoPlex TB/NTM-5 Detection Kit (NeoPlex assay, Seongnam, Republic of Korea), a multiplex real-time PCR assay that incorporates melting curve analysis, compared with the line-probe assay (LPA). The NeoPlex assay could simultaneously detect and differentiate MTBC from five other NTM species: , , , , and .
Vet Rec
January 2025
Departamento de Anatomía y Anatomía Patológica Comparadas, Facultad de Veterinaria, Universidad de Murcia, Murcia, Spain.
Background: Caprine tuberculosis is a chronic infectious disease caused by Mycobacterium bovis and Mycobacterium caprae. A tuberculosis control programme has been implemented using the comparative intradermal tuberculin (CIT) test. However, infection with Corynebacterium pseudotuberculsis and infection with or vaccination against Mycobacterium avium subspecies paratuberculosis (MAP) may have a negative impact on specificity.
View Article and Find Full Text PDFRev Med Chil
September 2024
Laboratorio Biología Molecular, Hospital Base de Valdivia, Valdivia, Chile.
Unlabelled: Non tuberculous mycobacteria (NTM) are important opportunistic infection in patients with AIDS.
Aim: To present 4 cases of disseminated infections by NTM in patients with AIDS.
Results: These cases were associated with prolonged symptoms of fever, weight loss, diarrhea or cough, with hepatosplenomegaly, anemia and thrombocytopenia.
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