Publications by authors named "Bernadett Kovacs"

Background: There is little evidence about the relationship between aetiology, illness severity, and clinical course of respiratory tract infections (RTIs) in primary care. Understanding these associations would aid in the development of effective management strategies for these infections.

Aim: To investigate whether clinical presentation and illness course differ between RTIs where a viral pathogen was detected and those where a potential bacterial pathogen was found.

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Background: Clinical findings do not accurately predict laboratory diagnosis of influenza. Early identification of influenza is considered useful for proper management decisions in primary care.

Objective: We evaluated the diagnostic value of the presence and the severity of symptoms for the diagnosis of laboratory-confirmed influenza infection among adults presenting with influenza-like illness (ILI) in primary care.

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Article Synopsis
  • Antivirals like oseltamivir are not often used in Europe for flu-like illnesses because many doctors think they don't work well and haven’t been proven to help everyone.
  • In a study with over 3,000 participants, researchers wanted to see if adding oseltamivir to regular care would help people recover faster from the flu.
  • The results showed that those who took oseltamivir got better about 1 day earlier than those who didn't, and it helped many different groups of people.
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Mycochemical examination of a methanol extract of Scleroderma bovista Fr. (Agaricomycetes) led to the isolation of 7 compounds, which were, to our knowledge, identified for the first time in this species. The chemical structures of these compounds were determined through extensive spectroscopic methods (nuclear magnetic resonance and mass spectrometry).

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Bioassay-guided fractionation of the chloroform extract of led to the isolation of four secondary metabolites ⁻. Two of the compounds are lactones—osmundalactone () and 5-hydroxy-hex-2-en-4-olide ()—while and were identified as terphenyl quinones, spiromentins C and B, respectively. The structures of the compounds were established on the basis of NMR and MS spectroscopic analysis.

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Ten representative Central European phellinoid Hymenochaetaceae species (Phellinus sensu lato) were selected to examine their potential pharmacological activity. In this study 40 organic (n-hexane, chloroform, 50% methanol) and aqueous extracts with different polarities were analyzed for their antimicrobial, antioxidant, and xanthine oxidase (XO)--inhibitory properties. Fomitiporia robusta, Fuscoporia torulosa, Phellopilus nigrolimitatus, and Porodaedalea chrysoloma showed moderate antibacterial activity; Bacillus subtilis ATCC 6633, methicillin-resistant Staphylococcus aureus ATCC 43300, and Moraxella catarrhalis ATCC 43617 were the strains most susceptible to the examined fungal species.

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Critically ill adults with acute kidney injury (AKI) experience considerable morbidity and mortality. Controversy remains regarding the optimal renal replacement intervention for these patients. Our systematic review aimed to determine the effect(s) of sustained low-efficiency dialysis (SLED) compared with continuous renal replacement (CRRT) therapy on relevant patient outcomes.

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Mycochemical study of the mushroom Gymnopus fusipes led to the discovery of two new cyclopeptides. The two compounds, named as gymnopeptides A and B, are unprecedented highly N-methylated cyclic octadecapeptides. Detailed spectroscopic studies, Marfey's analysis, and a preliminary molecular modeling study suggested that both are natural cyclic β hairpins.

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In the present work, aqueous and organic extracts of 16 Basidiomycetes mushrooms and 1 Ascomycetes mushroom were investigated in vitro for their antiproliferative activity against HeLa (cervix epithelial adenocarcinoma), A431 (skin epidermoid carcinoma), A2780 (ovarian carcinoma), and MCF7 (breast epithelial adenocarcinoma) cells, using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. A total of 68 n-hexane, chloroform, 50% methanol, and water extracts of selected species were screened for their potential cell growth inhibitory activity. Our experiments revealed that 7 of 17 species demonstrated notable antiproliferative activity (at least 50% inhibition of cell proliferation) against one or more cell lines.

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Background: Gliomas are the most common neoplasm of the brain. High-grade gliomas often resist treatment even with aggressive surgical resection and adjuvant radiation and chemotherapy. Despite the combined treatment, they frequently recur with the same or higher-grade histology.

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In this paper the findings of a study designed to assess whether nuns serving as nurses and having definite religious persuasions feel the same degree of burnout in their service of helping patients as non-religious nurses are presented. For this purpose two questionnaires were used, namely the Post-Critical Belief Scale and the Maslach Burnout Inventory. Subjects of the study had been working as a nurse for at least 5 years and 188 such subjects were enrolled.

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