Objective: To investigate antifungal susceptibility and factors associated with oral colonization by Candida species in HIV-positive patients.
Methods: A prospective study based on convenience sampling of subjects recruited from a pool of confirmed HIV-positive individuals seen at a specialty outpatient service in Rondonópolis, Mato Grosso, Brazil). Oral swabs were collected from 197 patients. Candida species were identified by standard microbiological techniques (phenotypic and molecular methods). Antifungal susceptibility was investigated using the broth microdilution method.
Results: A total of 101 (51.3%) patients were Candida spp carriers. Candida albicans was the most prevalent species (80%). Patients aged 45 to 59 years (Prevalence ratios: 1.90; 95%CI: 1.57-6.31) and 60 years or older (Prevalence ratios: 4.43; 95%CI: 1.57-34.18) were at higher risk of oral colonization by Candida species. Resistance to fluconazole and ketoconazole, or to itraconazole, corresponded to 1% and 4%, respectively.
Conclusion: Age (45 years or older) was the only factor associated with oral colonization by Candida . Low rates of antifungal resistance to azoles were detected in yeast isolates obtained from HIV-positive patients. Findings of this study may contribute to proper therapeutic selection for oral candidiasis in HIV-positive patients.
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http://dx.doi.org/10.1590/S1679-45082018AO4224 | DOI Listing |
Alzheimers Dement
December 2024
Emory University School of Medicine, Atlanta, GA, USA.
Background: Changes in neuroinflammatory tone have been shown to modulate neuroimmune responses to Alzheimer's disease (AD) pathology and shape disease outcomes, however, extrinsic factors that modify neuroimmune activation remain poorly understood. The gut microbiome is one such factor, with the ability to shape peripheral and central immune activation, as well as AD pathologies. AD patients display unique changes in microbiome composition, however, the link between specific AD-associated gut bacteria, neuroinflammatory tone, and AD outcomes remains to be elucidated.
View Article and Find Full Text PDFISME J
January 2025
Center for Fundamental and Applied Microbiomics, Biodesign Institue, Arizona State University, Tempe, AZ 85287.
The collective surface motility and swarming behavior of microbes play a crucial role in the formation of polymicrobial communities, shaping ecosystems as diverse as animal and human microbiota, plant rhizospheres, and various aquatic environments. In the human oral microbiota, T9SS-driven gliding bacteria transport non-motile microbes and bacteriophages as cargo, thereby influencing the spatial organization and structural complexity of these polymicrobial communities. However, the physical rules governing the dispersal of T9SS-driven bacterial swarms are barely understood.
View Article and Find Full Text PDFFront Vet Sci
December 2024
Food Safety and Enteric Pathogens Research Unit, National Animal Disease Center, U.S. Department of Agriculture-Agricultural Research Service (USDA-ARS), Ames, IA, United States.
Vaccines that cross-protect across serovars of () would be a beneficial intervention against emerging and persistent isolates of concern for the turkey industry. The 2017-2019 foodborne outbreak of serovar Reading (. Reading) revealed the need for effective control of this serovar in turkey production.
View Article and Find Full Text PDFNPJ Biofilms Microbiomes
January 2025
State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Frontier Innovation Center for Dental Medicine Plus & Department of Preventive Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.
Emerging evidence indicates that oral microbes are closely related to gastric microbes and gastric lesions, including gastric atrophy, intestinal metaplasia and gastric cancer (GC). Helicobacter pylori is a key pathogen involved in GC. However, the increasing prevalence of H.
View Article and Find Full Text PDFJ Indian Soc Periodontol
December 2024
Department of Periodontology, Maratha Mandal's Nathajirao G. Halgekar Institute of Dental Sciences and Research Centre, Belagavi, Karnataka, India.
Background: Mechanical therapy along with adjunctive therapy, using agents like chlorhexidine digluconate mouthwash helps to disrupt the plaque biofilm. Recently, herbs with medicinal value have been tested for their antimicrobial properties. The present study was designed to assess the anti-biofilm activity of against some periodontal pathogens in an artificially synthesized dental biofilm.
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