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http://dx.doi.org/10.1007/s11255-012-0150-zDOI Listing

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Background: Infective endocarditis (IE) due to nontuberculous mycobacteria (NTM) is a rare infection, and several outbreaks have been reported in the last 2 decades. However, the clinical spectrum is still poorly understood. This systematic review aimed to evaluate the clinical characteristics and outcomes in NTM IE.

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  • * A systematic review of 335 cases revealed that Mycobacterium abscessus was the most frequently identified pathogen, with many patients receiving treatment using multiple antibiotics.
  • * Early diagnosis using acid-fast bacilli staining and culture is crucial, and catheter removal may be necessary for effective management of these NTM infections.
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  • * The case report outlines four instances of extrapulmonary NTM disease in immunocompetent patients, with varied clinical outcomes ranging from meningitis and brain abscesses to cervical lymphadenopathy, highlighting misdiagnoses with tuberculosis.
  • * The findings emphasize the importance of awareness among clinicians regarding NTM disease, as early diagnosis and appropriate treatment are crucial for improving patient outcomes, especially for those with more severe infections.
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  • The text discusses the rise of an emerging human pathogen, a type of nontuberculous mycobacterium (NTM), which has shown increased prevalence and antibiotic resistance, emphasizing the need for new drug development.
  • It summarizes research over the past 20 years on various compounds that have antimycobacterial properties, focusing on promising synthetic drugs like macozinone and natural products like clostrubin and sansanmycin analogs.
  • The review highlights specific mechanisms of action for some compounds, such as NITD-916 and TBAJ-5307, and explores the pathogenic mechanisms and potential therapeutic targets within this NTM.
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Introduction: With a projected mortality toll of 1.4 million in 2019, tuberculosis (TB) continues to be a significant public health concern around the world. Studies of novel treatments are required due to decreased bioavailability, increased toxicity, increased side effects, and resistance of several first- and second-line TB therapies, including isoniazid and ethionamide.

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