A serious human infectious disease called Melioidosis is a result of Burkholderia pseudomallei infection. Treatment for infected individuals is difficult due to a wide range of ineffective antibiotics including a high level of antibiotic tolerance which has been known to be caused by biofilm production. However, biofilm forming processes of this bacterium are not well documented despite multiple-methodologies being applied. In this study, we utilized a proteomics strategy called whole cell matrix-assisted laser desorption ionization-time of flight mass spectrometry (whole cell MALDI-TOF MS) to discover a potential biomarker relating biofilm forming in B. pseudomallei. The results presented a novel specific type of enzyme amylo-alpha-1, 6-glucosidase, which was demonstrated by a higher level of gene expression during the biofilm development. Our results also suggested a list of candidate markers that might be involved in this scenario. Eventually, this knowledge may expand valuable data to the biofilm study that may increase effective treatments for people infected with B. pseudomallei and possibly other antibiotic tolerant bacteria.
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http://dx.doi.org/10.1016/j.mimet.2019.02.011 | DOI Listing |
South Afr J Crit Care
July 2024
Department of Critical Care Medicine, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India.
Background: Melioidosis cases are increasing in Southeast Asia, posing a significant challenge owing to the rising number of diabetic and immune compromised patients. Pneumonia is the most common presentation of melioidosis, while cutaneous melioidosis is rare.
Objectives: We report a case of primary cutaneous melioidosis (PCM) that eventually required intensive care unit (ICU) management.
Aust Vet J
December 2024
College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia.
Background: Melioidosis, caused by Burkholderia pseudomallei, is an important disease that is endemic in areas of northern Australia and can cause a wide range of clinical signs in people and animals. There is limited published data on the disease in marsupials.
Case Report: Two captive red-legged pademelons (Thylogale stigmatica) with collective signs of lethargy, dysphagia and bloody oral discharge were submitted for necropsy and showed variations in pathology findings ranging from multifocal abscessation in various tissues to evidence of fulminant septicaemia.
PLoS Negl Trop Dis
December 2024
Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, Arizona, United States of America.
Background: Burkholderia pseudomallei, causative agent of melioidosis, is a One Health concern as it is acquired directly from soil and water and causes disease in humans and agricultural and wild animals. We examined B. pseudomallei in soil and goats at a single farm in the Northern Territory of Australia where >30 goats acquired melioidosis over nine years.
View Article and Find Full Text PDFAccess Microbiol
October 2024
Pathology Queensland, Townsville Hospital, Douglas, Townsville, Queensland, Australia.
We report a case of cutaneous melioidosis in a 54-year-old male with a meropenem-resistant sub-population. He was empirically treated with episodic doxycycline and trimethoprim-sulfamethoxazole; however, the abscess re-accumulated. The patient had no prior exposure to meropenem.
View Article and Find Full Text PDFInfect Med (Beijing)
December 2024
Department of Clinical Microbiology and Immunology, College of Pharmacy and Medical Laboratory, Army Medical University (Third Military Medical University), Chongqing 400038, China.
Background: is a gram-negative bacterium widely found in Southeast Asia and northern Australia. This bacterium, which lacks an available vaccine, is the causative agent of melioidosis and has properties that potentially enable its exploitation as a bioweapon.
Methods: Polymerase chain reaction assays targeting each of the lipopolysaccharide (LPS) genetic types were used to investigate genotype frequencies in populations.
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