Mycetoma is an infrequent subcutaneous infection caused by true fungi (eumycetoma) or aerobic actinomycetes (actinomycetoma). We report the case of a 62-year-old man with eumycetoma involving the left foot and ankle. Skin biopsy revealed black-brown grains, and in culture, a white colony fungus grew at day 8. Molecular sequencing using ITS1-ITS4 primers identified the species as Aspergillus sydowii. The patient was treated with itraconazole 200 mg twice daily and terbinafine 250 mg daily for 8 months, with complete response and no recurrence after 2.5 years of follow-up. Aspergillus sydowii is a saprotrophic fungus that rarely causes skin or nail disease. No cases of eumycetoma caused by this agent have been previously reported. As its geographic distribution continues to expand, it may increasingly be recognized as a cause of human disease.
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http://dx.doi.org/10.4269/ajtmh.20-1352 | DOI Listing |
J Asian Nat Prod Res
December 2024
CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
Three new terpenoid derivatives (1,6,7)-hydrobenzosydowic acid (), (1 ,6,7)-hydrobenzosydowic acid (), and (7 ,10)-11-dehydroxy-iso-10-hydroxysydowic acid (), along with the known analogues ()-2-(1-(4-nitrobenzoyl)pyrrolidine-2-carboxamido)benzoic acid () and trihydroxybutyl ester of 4-carboxydiorcinol () were isolated from the deep-sea-derived fungus DFFSCS007. Their structures were determined by spectroscopic analysis. Compound with a nitrobenzene group was isolated from nature for the first time.
View Article and Find Full Text PDFMar Drugs
December 2024
Univ Brest, INRAE, Laboratoire Universitaire de Biodiversité et Écologie Microbienne, F-29280 Plouzané, France.
Sulfation plays a critical role in the biosynthesis of small molecules, regulatory mechanisms such as hormone signaling, and detoxification processes (phase II enzymes). The sulfation reaction is catalyzed by a broad family of enzymes known as sulfotransferases (SULTs), which have been extensively studied in animals due to their medical importance, but also in plant key processes. Despite the identification of some sulfated metabolites in fungi, the mechanisms underlying fungal sulfation remain largely unknown.
View Article and Find Full Text PDFJ Infect Public Health
January 2025
Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Hebei North University, Zhangjiakou, Hebei Province, People's Republic of China. Electronic address:
Background: The global epidemiology of aspergillosis varies and is influenced by various factors. To elucidate the disease burden and identify effective control strategies, the epidemiological characteristics of Aspergillus infections have to be investigated. The aim of this study was to assess the epidemiological characteristics of various Aspergillus species, including their morphological features, species identification, and in vitro susceptibility to nine antifungal agents in a large tertiary hospital in northern China.
View Article and Find Full Text PDFFood Chem
February 2025
School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China. Electronic address:
Microbial fermentation, especially the microbes involved, plays a crucial role in the quality formation of dark tea. Over the last decade, numerous microbes have been isolated from dark tea and in turn, applied to dark tea manufacture through pure-strain, mixed-strain, and enhanced fermentation. This article systematically summarizes the specific metabolic function and quality contribution of tea-derived microbes, with special attention paid to their safety risk.
View Article and Find Full Text PDFPoult Sci
December 2024
College of Life Sciences, Shandong Normal University, Jinan 250014, China. Electronic address:
Microbial aerosol contamination is a common problem in poultry farms, posing potential health risks to poultry and their caretakers. Exploring the distribution and diversity of the microbial community in poultry farm aerosols is crucial for effective mitigation strategies. The composition of bacterial and fungal aerosols is poorly understood, particularly the prevalence of potential pathogenic microorganisms in fine particulate matter (PM) in various types of poultry houses.
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