Publications by authors named "Kolarik M"

Amphotericin B (AmB) is one of the most effective antifungal drugs, with a strong, dose-dependent activity against most Candida and Aspergillus species responsible for life-threatening infections. However, AmB is severely toxic, which hinders its broad use. In this proof-of-concept study, we demonstrate that prodrugging AmB considerably decreases AmB toxicity without affecting its fungicidal activity.

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  • The study investigates the phylogenetic relationships of two morphologically similar fungal genera within the Sordariomycetes, confirming they are congeneric and proposing new combinations for their classification.
  • New species were identified through molecular data, particularly using specific gene markers, as traditional morphology was insufficient for distinguishing them.
  • The research highlights the importance of the ascogenous system for genus identification and discusses the global diversity and biogeography of the genera, including the publication of whole-genome analyses to improve taxonomic standards.
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  • Tumor cells can adapt to a lack of amino acids by changing their metabolism, using alternative sources like glutamate when deprived of asparagine and glutamine due to L-asparaginase (ASNase) treatment.
  • ASNase's effectiveness relies on inducing nutrient stress that raises serum levels of aspartate and glutamate while depleting asparagine and glutamine in acute lymphoblastic leukemia patients.
  • Increased glutamate uptake helps cancer cells survive by supporting critical metabolic processes like nucleotide and glutathione synthesis, suggesting that inhibiting glutamate transporters could improve the efficacy of ASNase treatment.
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is a native perennial plant used in traditional Mexican medicine. In June 2022, leaf blight symptoms were observed in a wild population of plants. Disease incidence was 80% and disease intensity reached up to 5% of the leaf area.

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Objectives: Lung ultrasound reduces the number of chest X-rays after thoracic surgery and thus the radiation. COVID-19 pandemic has accelerated research in lung ultrasound artifacts detection using artificial intelligence. This study evaluates the accuracy of artificial intelligence in A-lines detection in thoracic surgery patients using a novel hybrid solution that combines convolutional neural networks and analytical approach and compares it with a radiology resident and radiology experts' results.

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A chemical investigation of , isolated from cysts of the plant parasitic nematode , affored three dactylfungin derivatives (-) and three tetralone congeners (-). Dactylfungin C (), laburnicolin (), and laburnicolenone () are previously undescribed natural products. Chemical structures of the isolated compounds were determined based on 1D and 2D NMR spectroscopic analyses together with HR-ESI-MS spectrometry and comparison with data reported in the literature.

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is the most diverse genus of dermatophytes, and its natural reservoir is considered to be soil enriched by keratin sources. During a study on the diversity of dermatophytes in wild small rodents in the Czech Republic, we isolated several strains of . To explore the diversity and ecological significance of these isolates from rodents (n = 29), we characterised the strains genetically (i.

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Background: Terbinafine, an allylamine antifungal, is crucial for treating dermatophytosis by inhibiting squalene epoxidase (SQLE) in the ergosterol biosynthetic pathway. However, resistance is emerging, particularly in India and Southeast Asia, but reports of resistance spread worldwide. Despite this, comprehensive studies on terbinafine resistance in Trichophyton are still limited.

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  • The text discusses the historical context and scientific exploration of ergot species in Japan, which were first recorded in 1853 but have been poorly understood due to ambiguous and invalid species names.
  • A research team collected over 300 fresh specimens to clarify the taxonomy of Japanese ergots, conducting genetic analyses to establish relationships with known species and identify biogeographic patterns.
  • As a result of their findings, the authors recognized at least 21 species in Japan, re-evaluated previously described taxa, elevated two varieties to species status, and proposed six new species.
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Ambrosia gall midges are endophagous insect herbivores whose larvae live enclosed within a single gall for their entire development period. They may exhibit phytomycetophagy, a remarkable feeding mode that involves the consumption of plant biomass and mycelia of their cultivated gall symbionts. Thus, AGMs are ideal model organisms for studying the role of microorganisms in the evolution of host specificity in insects.

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The caterpillar gut is an excellent model system for studying host-microbiome interactions, as it represents an extreme environment for microbial life that usually has low diversity and considerable variability in community composition. Our study design combines feeding caterpillars on a natural and artificial diet with controlled levels of plant secondary metabolites and uses metabarcoding and quantitative PCR to simultaneously profile bacterial and fungal assemblages, which has never been performed. Moreover, we focus on multiple caterpillar species and consider diet breadth.

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Arbuscular mycorrhizal (AM) fungi are crucial mutualistic symbionts of the majority of plant species, with essential roles in plant nutrient uptake and stress mitigation. The importance of AM fungi in ecosystems contrasts with our limited understanding of the patterns of AM fungal biogeography and the environmental factors that drive those patterns. This article presents a release of a newly developed global AM fungal dataset (GlobalAMFungi database, https://globalamfungi.

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Background: Chest X-ray (CXR) remains the standard imaging modality in postoperative care after non-cardiac thoracic surgery. Lung ultrasound (LUS) showed promising results in CXR reduction. The aim of this review was to identify areas where the evaluation of LUS videos by artificial intelligence could improve the implementation of LUS in thoracic surgery.

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Background: Plant-associated microbial communities play important roles in host nutrition, development and defence. In particular, the microbes living within internal plant tissues can affect plant metabolism in a more intimate way. Understanding the factors that shape plant microbial composition and discovering enriched microbes within endophytic compartments would thus be valuable to gain knowledge on potential plant-microbial coevolutions.

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The European spruce bark beetle, Ips typographus, is a serious pest of spruce forests in Europe, and its invasion and development inside spruce tissues are facilitated by microorganisms. We investigated the core gut bacterial and fungal microbiomes of I. typographus throughout its life cycle in spring and summer generations.

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Deep learning methods have proven to be effective for multiple diagnostic tasks in medicine and have been performing significantly better in comparison to other traditional machine learning methods. However, the black-box nature of deep neural networks has restricted their use in real-world applications, especially in healthcare. Therefore, explainability of the machine learning models, which focuses on providing of the comprehensible explanations of model outputs, may affect the possibility of adoption of such models in clinical use.

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  • The text discusses a little-understood group of soil- and wood-inhabiting fungi that reproduce through a rare process involving multiple locations and were previously classified into three sections, but recent studies show this classification is outdated.
  • A new classification proposal is introduced, recognizing these fungi as a polythetic genus with 37 species divided into eight sections, alongside the reclassification of some species into a new genus.
  • Additionally, the study highlights the ecological role of these fungi, noting their common presence in soil, association with forest habitats, and sensitivity to climate, supported by data from the GlobalFungi database.
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Background: Ips typographus (European spruce bark beetle) is the most destructive pest of spruce forests in Europe. As for other animals, it has been proposed that the microbiome plays important roles in the biology of bark beetles. About the bacteriome, there still are many uncertainties regarding the taxonomical composition, insect-bacteriome interactions, and their potential roles in the beetle ecology.

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  • This paper investigates various fungal endophytes found in Vitis vinifera (grapevine) leaves and canes in the Czech Republic, using morphological and genetic analyses.
  • A total of 16 different fungal species were identified, including some common ones and several lesser-known fungi, highlighting the diversity of fungal life associated with this plant.
  • The research is pioneering in the context of Central Europe, providing new insights into the taxonomy, ecology, and geographical distribution of V. vinifera's fungal endophytes.
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  • - Pulmonary fibrosis is a serious long-term complication of COVID-19, and corticosteroids can aid recovery but come with potential side effects.
  • - Researchers developed predictive models using multiple algorithms, including Decision Tree and Random Forest, on data from 281 patients assessed before and three months after treatment.
  • - The Decision Tree algorithm showed strong performance with a balanced accuracy of 73.52%, suggesting these models could help doctors tailor corticotherapy to individual patients' needs.
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During a study of the diversity of soilborne fungi from Spain, a strain belonging to the family Chaetomiaceae (Sordariales) was isolated. The multigene phylogenetic inference using five DNA loci showed that this strain represents an undescribed species of the genus , herein introduced as sp. nov.

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Spruce bark beetle s can trigger outbreaks on spruce that results in significant losses in the forest industry. It has been suggested that symbiotic microorganisms inhabiting the gut of bark beetles facilitate the colonization of plant tissues as they play a role in the detoxification of plant secondary metabolites, degrade plant cell wall and ameliorate beetle's nutrition. In this study, we sequenced and functionally annotated the genomes of five yeasts , sp.

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This study looked for correlations between molecular identification, clinical manifestation, and morphology for Trichophyton interdigitale and Trichophyton mentagrophytes. For this purpose, a total of 110 isolates were obtained from Czech patients with various clinical manifestations of dermatophytosis. Phenotypic characters were analyzed, and the strains were characterized using multilocus sequence typing.

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section encompasses white- or yellow-sporulating species mostly isolated from indoor and cave environments, food, feed, clinical material, soil and dung. Their identification is non-trivial due to largely uniform morphology. This study aims to re-evaluate the species boundaries in the section and present an overview of all existing species along with information on their ecology.

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  • Series members exist in diverse environments, including indoor spaces, food, clinical materials, and various ecosystems, and recent taxonomic changes have narrowed the number of recognized species from many to just 17.
  • Identifying these species is challenging, even with advanced techniques like DNA sequencing, highlighting issues with defining species boundaries; a study used 518 strains but ultimately focused on 213 for phylogenetic analysis.
  • The results indicated that many species are poorly defined, supporting the reduction of the series to just four distinct species, with the other recognized species being synonymized based on inadequate distinguishing characteristics.
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