Tryptophan metabolism in fungal infections

Tryptophan metabolism in fungal infectionsSaturday, February 29, 2020 - 13:03Slide presentation
Source: The Aspergillus Website - updates - Category: Respiratory Medicine Authors: Source Type: news

Related Links:

Abstract Fungi are an important but frequently overlooked cause of morbidity and mortality in humans. Life-threatening fungal infections mainly occur in immunocompromised patients, and are typically caused by environmental opportunists that take advantage of a weakened immune system. The filamentous fungus Aspergillus fumigatus is the most important and well-documented mold pathogen of humans, causing a number of complex respiratory diseases, including invasive pulmonary aspergillosis, an often fatal disease in patients with acute leukemia or in immunosuppressed bone marrow or solid organ transplant recipients. Ho...
Source: Advances in Applied Microbiology - Category: Microbiology Authors: Tags: Adv Appl Microbiol Source Type: research
In this study, we established the presence of the components of the alternate pathway of complement system and their functional state in the tear film of mycotic keratitis patients. The complement proteins namely, C3 and CFH were found only in the open-eye tear of patients but not in control individuals. In vitro analysis showed binding of purified C3b and CFH to fungal spores, which confirmed that the spores can provide a foreign surface for forming the complement complex. Analysis of spore bound tear proteins by mass spectrometry exhibited the presence of known proteins of the alternate pathway complement cascade in kera...
Source: Frontiers in cellular and infection microbiology - Category: Microbiology Source Type: research
To report a case of lenticular infection caused by Aspergillus, which was diagnosed 13  weeks after traumatic corneal laceration.
Source: BMC Ophthalmology - Category: Opthalmology Authors: Tags: Case report Source Type: research
Conclusion: Endogenous endophthalmitis is a sight threatening condition associated with high mortality particularly when caused by Aspergillus spp. in immunocompromised patients. Contrary to the prior published reports of endogenous endophthalmitis outside India, we found an equal distribution of fungal and bacterial organisms among our cases, with predominance of Aspergillus among fungal isolates and Gram-positive organism among bacteria. Fungal infections, especially with Aspergillus spp., resulted in poor visual and survival outcome.
Source: Indian Journal of Ophthalmology - Category: Opthalmology Authors: Source Type: research
Authors: Kelly BT, Pennington KM, Limper AH Abstract Introduction: Fungal infections are increasingly encountered in clinical practice due to more favorable environmental conditions and increasing prevalence of immunocompromised individuals. The diagnostic approach for many fungal pathogens continues to evolve. Herein, we outline available diagnostic tests for the most common fungal infections with a focus on recent advances and future directions.Areas covered: We discuss the diagnostic testing methods for angioinvasive molds (Aspergillus spp. and Mucor spp.), invasive yeast (Candida spp. and Cryptococcus sp.), Pne...
Source: Expert Review of Respiratory Medicine - Category: Respiratory Medicine Tags: Expert Rev Respir Med Source Type: research
Conclusion: The antifungal results in vitro and in vivo validated the use of this plant in traditional medicine in the treatment of fungal infections. These results have stressed the need for isolation and characterization of the active compound and the elucidation of the mechanisms of action of secondary metabolites on the immune response of Drosophila melanogaster.
Source: Research Journal of Medicinal Plant - Category: Complementary Medicine Source Type: research
Abstract KEY MESSAGE: Two novel resistant QTLs mapped and candidate genes identified for Aspergillus flavus resistance in cultivated peanut using SLAF-seq. Aflatoxin contamination in peanuts caused by Aspergillus flavus is a serious food safety issue for human health around the world. Host plant resistance to fungal infection and reduction in aflatoxin are crucial for mitigating this problem. Identification of the resistance-linked markers can be used in marker-assisted breeding for varietal development. Here we report construction of two high-density genetic linkage maps with 1975 SNP loci and 5022 SNP loci, resp...
Source: TAG. Theoretical and Applied Genetics - Category: Genetics & Stem Cells Authors: Tags: Theor Appl Genet Source Type: research
Authors: Papachristou SG, Iosifidis E, Sipsas NV, Gamaletsou MN, Walsh TJ, Roilides E Abstract Introduction: Osteoarticular fungal infections (OAFIs) complicate the clinical course of high-risk patients, including immunosuppressed individuals. Their management, however, despite being intricate, is governed by evidence arising from sub-optimal quality research, such as case series. Guidelines are scarce and when present result in recommendations based on low quality evidence. Furthermore, the differences between the management of immunocompromised and immunocompetent patients are not distinct. This is a narrative re...
Source: Expert Review of Anti-Infective Therapy - Category: Infectious Diseases Tags: Expert Rev Anti Infect Ther Source Type: research
AbstractPurpose of ReviewThis review summarizes current treatment options for echinocandin-resistantCandida spp. (ERC) and azole-resistantAspergillus fumigatus (ARAF), emphasizing recent in vitro/in vivo data, clinical reports, and consensus statements.Recent FindingsAdvances in ERC and ARAF treatment are limited to specific antifungal combinations and dose optimization but remain reliant on amphotericin products. Although novel antifungals may provide breakthroughs in the treatment of resistant fungi, these agents are not yet available. Early identification and appropriate treatment remain a paramount, albeit elusive, tas...
Source: Current Fungal Infection Reports - Category: Infectious Diseases Source Type: research
Authors: Hatinguais R, Willment JA, Brown GD Abstract Fungi are opportunistic pathogens that infect immunocompromised patients and are responsible for an estimated 1.5 million deaths every year. The antifungal innate immune response is mediated through the recognition of pathogen-associated molecular patterns (PAMPs) by the host's pattern recognition receptors (PRRs). PRRs are immune receptors that ensure the internalisation and the killing of fungal pathogens. They also mount the inflammatory response, which contributes to initiate and polarise the adaptive response, controlled by lymphocytes. Both the innate and ...
Source: Current Topics in Microbiology and Immunology - Category: Microbiology Tags: Curr Top Microbiol Immunol Source Type: research
More News: Aspergillus | Fungal Infections | Respiratory Medicine | Websites