Publications by authors named "Anuradha Chowdhary"

The skin-tropic human fungal pathogen Candida auris can cause life-threatening infections of high mortality in healthcare settings. Clinical isolates display a pronounced heterogeneity in virulence traits, such as antifungal susceptibility, stress adaptation, and growth fitness. However, the mechanistic bases underlying intraspecies variations remain enigmatic.

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There has been a recent shift in the epidemiology of superficial fungal infections (tinea, dermatophytosis, dermatomycoses). Trichophyton indotineae is an emerging dermatophyte species of significant global concern for its contagious nature and antifungal drug resistance. This scoping review includes available clinical and laboratory assessments of T.

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Neonatal invasive candidiasis (NIC) is an important cause of morbidity and mortality, especially in preterm and very low birthweight infants, with the incidence being inversely correlated with gestational age and birth weight. Epidemiological studies in high-income countries show and being the commonest species causing NIC, while in low- and middle-income countries NIC is more often caused by non- species with higher rates of antifungal resistance. The increased incidence of fluconazole-resistant and multi-drug-resistant causing NIC is of concern and challenges our management approaches.

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The phylogeny of the vertebrate pathogen and its varieties was analyzed on the basis of GenBank data, comparing preceding papers that distinguished lineages on the basis of a much smaller dataset, partly dating back two decades. The aim was to establish the predictive value of individual research papers on biodiversity, which eventually may lead to altered nomenclature with large clinical consequences. A total of 1985 sequences of ITS, ARF, OLE and H-anti were downloaded.

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Unlabelled: has emerged as a multidrug-resistant human fungal pathogen that causes infections of high morbidity and mortality. However, the molecular mechanisms underlying pronounced multidrug resistance and host-pathogen interactions are poorly understood. Here, we show that lysine acetyltransferase is essential for cell wall remodeling, antifungal drug resistance, and virulence.

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Candida species are the predominant cause of fungal infections in patients treated in hospital, contributing substantially to morbidity and mortality. Candidaemia and other forms of invasive candidiasis primarily affect patients who are immunocompromised or critically ill. In contrast, mucocutaneous forms of candidiasis, such as oral thrush and vulvovaginal candidiasis, can occur in otherwise healthy individuals.

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The emergence of antifungal resistance calls for continued research efforts to better guide healthcare providers in treatment selection and outcomes. Unlike bacterial infections, treatment of superficial fungal infections is mainly limited to allylamines (terbinafine) and azoles (itraconazole). Here, we aim to update our current understanding of resistance mechanisms against allylamine and azole antifungals in the Trichophyton genus.

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Over the past billion years, the fungal kingdom has diversified to more than two million species, with over 95% still undescribed. Beyond the well-known macroscopic mushrooms and microscopic yeast, fungi are heterotrophs that feed on almost any organic carbon, recycling nutrients through the decay of dead plants and animals and sequestering carbon into Earth's ecosystems. Human-directed applications of fungi extend from leavened bread, alcoholic beverages and biofuels to pharmaceuticals, including antibiotics and psychoactive compounds.

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Invasive mould disease (IMD) has a high mortality in immunosuppressed patients. Invasive aspergillosis (IA) is the most common IMD. A guideline for preventing IA has been published jointly by the Centers for Disease Control and Prevention, the Infectious Disease Society of America, and the American Society of Blood and Marrow Transplantation.

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causes life-threatening infections in immunocompromised hosts, including hospitalized neonates. This pathogen is intrinsically resistant to fluconazole, while uncommon strains resistant to multiple antifungal drugs, including voriconazole, amphotericin B, and echinocandins, have also been reported from healthcare environments. Thus, understanding how spread, persist, and adapt to healthcare settings could help us develop better infection management strategies.

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In 2019, became the first fungal pathogen included in the list of the urgent antimicrobial threats by the Centers for Disease Control (CDC). Short tandem repeat (STR) analysis and whole-genome sequencing (WGS) are considered the gold standard, and can be complemented by other molecular methods, for the genomic surveillance and clade classification of this multidrug-resistant yeast. However, these methods can be expensive and require time and expertise that are not always available.

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Blastomyces spp. fungi, the causal agent of blastomycosis, are common in North America but do occur in other areas of the world. The most prevalent pathogen in the genus is B.

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Medically important pathogenic fungi invade vertebrate tissue and are considered primary when part of their nature life cycle is associated with an animal host and are usually able to infect immunocompetent hosts. Opportunistic fungal pathogens complete their life cycle in environmental habitats or occur as commensals within or on the vertebrate body, but under certain conditions can thrive upon infecting humans. The extent of host damage in opportunistic infections largely depends on the portal and modality of entry as well as on the host's immune and metabolic status.

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Unlabelled: , a multidrug-resistant human fungal pathogen, was first identified in 2009 in Japan. Since then, systemic infections have now been reported in more than 50 countries, with mortality rates of 30%-60%. A major contributing factor to its high inter- and intrahospital clonal transmission is that unlike most species, displays unique skin tropism and can stay on human skin for a prolonged period.

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Article Synopsis
  • Blastomyces is a fungal pathogen affecting people globally, with its evolutionary diversity still largely unknown.
  • Researchers sequenced genomes from 99 Blastomyces isolates to analyze their phylogenetic relationships, discovering inconsistencies in tree construction across different methods.
  • The study highlights the importance of collecting more samples to better understand the genetic variation and evolutionary processes of these significant fungi.
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Infections are well-known complications in patients following traumatic injuries, frequently leading to high morbidity and mortality. In particular, trauma occurring in disaster settings, both natural and man-made, such as armed conflicts and explosives detonation, results in challenging medical conditions that impede the best management practices. The incidence of invasive fungal infections (IFI) is increasing in trauma patients who lack the typical risk factors like an immune compromised state or others.

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Article Synopsis
  • Trichophyton indotineae is a new type of fungus that causes difficult-to-treat skin infections and has spread globally since its initial identification in India.
  • Properly identifying T. indotineae requires advanced testing techniques, as it shows unusual and extensive symptoms that aren't typical of other fungal infections.
  • The fungus exhibits high mutation rates affecting its response to the antifungal drug terbinafine, necessitating longer treatment periods and resulting in possible relapses, while other antifungals like fluconazole are ineffective.
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Unlabelled: , a multidrug-resistant human fungal pathogen, was first identified in 2009 in Japan. Since then, systemic infections have now been reported in more than 50 countries, with mortality rates of 30-60%. A major contributing factor to its high inter- and intrahospital clonal transmission is that unlike most species, displays unique skin tropism and can stay on human skin for a prolonged period.

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Article Synopsis
  • Climate change is making fungi stronger and better at surviving in warmer temperatures, which can lead to more fungal diseases.
  • As the climate changes, some fungi are spreading to new places where they didn't used to live, like cities and polluted areas.
  • People who are most affected by these changes are often those in weaker situations, so we need to pay more attention to this problem and get more funding and research to help.
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The emergence and spread of Trichophyton indotineae (T. indotineae) has led to a sea change in the prescription practices of clinicians regarding the management of dermatophytic skin infections. An infection easily managed with a few weeks of antifungals, tinea corporis or cruris, is now often chronic and recurrent and requires prolonged treatment.

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Article Synopsis
  • - The frequent renaming of medically significant fungi is complicating the work of clinical labs and healthcare providers, highlighting the need for better communication and resources in this area.
  • - Different factors drive name changes at the species and genus levels, prompting the authors to suggest maintaining larger genera and providing diagnostic markers for new classifications to help simplify identification.
  • - The authors call for an open-access online database to track these changes, recommending a committee to regularly review new names so that clinicians can access consistent and validated information about fungal species.
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Candida auris, is an emerging fungal pathogen that can cause life-threatening infections in humans. Unlike many other Candida species that colonize the intestine, C. auris most efficiently colonizes the skin.

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