In vitro activity of 12 antimicrobial peptides against Mycobacterium tuberculosis and Mycobacterium avium clinical isolates.

In conclusion, AMPs could be alternatives for the treatment of mycobacterial infections. Further investigation of AMPs' activity in combination and associated with conventional antibiotics and their loading into drug-delivery systems could lead to their use in clinical practice. PMID: 30570475 [PubMed - as supplied by publisher]
Source: Journal of Medical Microbiology - Category: Microbiology Authors: Tags: J Med Microbiol Source Type: research

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ConclusionThe study signifies the development of a potent therapeutic agent comprising of a complex of anti-TB agent (fatty acids) and antioxidants (carotenoids) from the CGF-extracted spent biomass of C. vulgaris.Graphical abstract
Source: Journal of Ethnopharmacology - Category: Drugs & Pharmacology Source Type: research
Publication date: Available online 16 November 2019Source: Progress in Biophysics and Molecular BiologyAuthor(s): Neelagandan Kamariah, Priya Ragunathan, Joon Shin, Wuan-Geok Saw, Chui-Fann Wong, Thomas Dick, Gerhard GrüberAbstractThe causative agent of Tuberculosis (TB) Mycobacterium tuberculosis (Mtb) encounters unfavourable environmental conditions in the lungs, including nutrient limitation, low oxygen tensions and/or low/high pH values. These harsh conditions in the host triggers Mtb to enter a dormant state in which the pathogen does not replicate and uses host-derived fatty acids instead of carbohydrates as an ...
Source: Progress in Biophysics and Molecular Biology - Category: Molecular Biology Source Type: research
Conclusions: New recommendations are made for the choice and number of drugs in a regimen, the duration of intensive and continuation phases, and the role of injectable drugs for MDR-TB. On the basis of these recommendations, an effective all-oral regimen for MDR-TB can be assembled. Recommendations are also provided on the role of surgery in treatment of MDR-TB and for treatment of contacts exposed to MDR-TB and treatment of isoniazid-resistant TB. PMID: 31729908 [PubMed - in process]
Source: American Journal of Respiratory and Critical Care Medicine - Category: Respiratory Medicine Authors: Tags: Am J Respir Crit Care Med Source Type: research
In conclusion, our findings have uncovered bactericidal activity of a new chemical scaffold. Its anti-tubercular activity is mediated by direct inhibition of the flippase activity of MmpL3 rather than by inhibition of the inner membrane proton motive force, significantly advancing our understanding of MmpL3-targeted inhibition in mycobacteria.
Source: Journal of Biological Chemistry - Category: Chemistry Authors: Tags: Microbiology Source Type: research
Publication date: Available online 13 November 2019Source: Journal of Global Antimicrobial ResistanceAuthor(s): Lebogang Kenaope, Hannetjie Ferreira, Faheem Seedat, Kennedy Otwombe, Neil A. Martinson, Ebrahim VariavaAbstractSettingTshepong Hospital multidrug resistant (MDR) unit between April 2011 and February 2014.ObjectiveRifampicin resistant (RR) tuberculosis (TB) on X-pert MTB/Rif is assumed a surrogate for MDR TB. Following a RR result, a second specimen is taken for confirmatory culture and drug susceptibility testing (DST). We compare the initial diagnostic X-pert MTB/RIF result to the confirmatory DST in a high HIV...
Source: Journal of Global Antimicrobial Resistance - Category: Infectious Diseases Source Type: research
ConclusionsResistant MTB isolates in Algeria harbour resistance genotypes similar to other countries, but some rare patterns may result from selection and transmission processes inherent to the country.
Source: Journal of Global Antimicrobial Resistance - Category: Infectious Diseases Source Type: research
Source: Infection and Drug Resistance - Category: Infectious Diseases Tags: Infection and Drug Resistance Source Type: research
AbstractThe increasing prevalence of multidrug-resistant strains ofMycobacterium tuberculosis (Mtb), the pathogen of human tuberculosis (TB), serves as a strong incentive for the discovery and development of new agents for the treatment of this plight. In search for such drugs, we investigated a series of benzyltriazole derivatives. We herein report the design, synthesis and biological activity of disubstituted benzyltriazoles against the human virulent H37Rv strain ofMtb as well as the toxicity on human embryonic kidney (HEK-293) cells. The derivative21 featuring trifluoromethyl substituent inpara position on the phenyl r...
Source: Medicinal Chemistry Research - Category: Chemistry Source Type: research
Tuberculosis (TB) has now surpassed HIV as the leading infectious cause of death, and treatment success rates are declining. Multidrug-resistant TB, extensively drug-resistant TB, and even totally drug-resistant TB threaten to further destabilize disease control efforts. The second wave in TB drug development, which includes the diarylquinoline, bedaquiline, and the nitroimidazoles delamanid and pretomanid, may offer options for simpler, shorter, and potentially all-oral regimens to treat drug-resistant TB. The “third wave” of TB drug development includes numerous promising compounds, including less toxic versi...
Source: Clinics in Chest Medicine - Category: Respiratory Medicine Authors: Source Type: research
Abstract Treating tuberculosis (TB) requires a multidrug course of treatment lasting 6 months, or longer for drug-resistant TB, which is difficult to complete and often not well tolerated. Treatment failure and recurrence after end-of-treatment can have devastating consequences, including progressive debilitation, death, the transmission of Mycobacterium tuberculosis - the infectious agent responsible for causing TB - to others, and may be associated with the development of drug-resistant TB. The burden on health systems is important, with severe economic consequences. Vaccines have the potential to serve as imm...
Source: Vaccine - Category: Allergy & Immunology Authors: Tags: Vaccine Source Type: research
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