首页 > 最新文献

Revista Iberoamericana De Micologia最新文献

英文 中文
Real-world use of isavuconazole in adult oncohematology patients.
IF 1.5 4区 生物学 Q4 MYCOLOGY Pub Date : 2025-03-19 DOI: 10.1016/j.riam.2025.02.001
Mi Kwon

Isavuconazole has emerged as a significant antifungal agent in the treatment and prophylaxis of invasive fungal infections (IFIs) among immunocompromised patients, particularly those undergoing hematopoietic stem cell transplantation (HSCT) or receiving treatment for hematological malignancies. Real-world experience with the use of isavuconazole in oncohematological patients has increasingly been reported. Isavuconazole has demonstrated efficacy against a broad spectrum of fungal pathogens, with a favorable safety profile and lower rates of hepatotoxicity compared to other azoles. Isavuconazole is generally well-tolerated, making it suitable for long-term use in high-risk patients for both treatment and prophylaxis of IFIs. Isavuconazole can be considered a valuable treatment option for IFIs in patients with hematological malignancies and HSCT recipients. It may be a suitable alternative to other azoles, especially in patients with underlying liver dysfunction or those experiencing the effects of multiple drug interactions. Nevertheless, further research is needed to evaluate the long-term safety and efficacy of isavuconazole, particularly in specific patient populations and in combination with other antifungal agents. Overall, isavuconazole represents a promising addition to the antifungal armamentarium, offering a safer and more effective treatment option for patients at high risk of IFIs.

{"title":"Real-world use of isavuconazole in adult oncohematology patients.","authors":"Mi Kwon","doi":"10.1016/j.riam.2025.02.001","DOIUrl":"https://doi.org/10.1016/j.riam.2025.02.001","url":null,"abstract":"<p><p>Isavuconazole has emerged as a significant antifungal agent in the treatment and prophylaxis of invasive fungal infections (IFIs) among immunocompromised patients, particularly those undergoing hematopoietic stem cell transplantation (HSCT) or receiving treatment for hematological malignancies. Real-world experience with the use of isavuconazole in oncohematological patients has increasingly been reported. Isavuconazole has demonstrated efficacy against a broad spectrum of fungal pathogens, with a favorable safety profile and lower rates of hepatotoxicity compared to other azoles. Isavuconazole is generally well-tolerated, making it suitable for long-term use in high-risk patients for both treatment and prophylaxis of IFIs. Isavuconazole can be considered a valuable treatment option for IFIs in patients with hematological malignancies and HSCT recipients. It may be a suitable alternative to other azoles, especially in patients with underlying liver dysfunction or those experiencing the effects of multiple drug interactions. Nevertheless, further research is needed to evaluate the long-term safety and efficacy of isavuconazole, particularly in specific patient populations and in combination with other antifungal agents. Overall, isavuconazole represents a promising addition to the antifungal armamentarium, offering a safer and more effective treatment option for patients at high risk of IFIs.</p>","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143812219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Clinical insights into invasive aspergillosis among immunosuppressed patients: A single-centre experience from Argentina.
IF 1.5 4区 生物学 Q4 MYCOLOGY Pub Date : 2025-03-11 DOI: 10.1016/j.riam.2025.01.003
Fernando Riera, Julieta Carballo, Carlos Bergallo, Federico Romero, Belén Palacio, Lizet Luque-Aguada, Marcos Marino, Jon Salmanton-García

Background: Invasive aspergillosis poses a significant threat to immunocompromised individuals. Diagnostic criteria incorporating biomarkers and imaging have improved diagnosis, and treatment options have expanded. However, in Argentina, diverse patient demographics and environmental factors add complexity to managing this infection.

Aims: This study aims to explore the epidemiology, diagnostic methods, and treatment of invasive aspergillosis in an Argentine hospital setting.

Methods: We collected data from patients with suspected invasive aspergillosis at a tertiary care hospital in Central-Northern Argentina. Variables included demographics, underlying conditions, diagnostic criteria, treatment, and outcomes.

Results: With a median age of 44.5 years and a 51% of male patients, our institution conducted invasive aspergillosis screenings on 192 patients, many of whom were battling malignancies (90%). One third of them had the infection set as probable or possible. Imaging (31%) and positive microbiological results (16%) were examples of diagnostic evidence. With an overall mortality rate of 15%, half of the patients got antifungal treatment for a median of seven days. Mortality among the diagnosed patients was 22%. Patients without stem-cell transplantation had a high death rate (31%), although this difference was not statistically significant; in patients having pulmonary nodules (15%) the death rate was not statistically significant either. There were no discernible variations in mortality according to the type of treatment received.

Conclusions: Our study reveals that invasive aspergillosis remains a significant issue in high-risk patients, and has a notable mortality rate, particularly among those patients with pulmonary nodules. Computed tomography provides a high diagnostic yield.

{"title":"Clinical insights into invasive aspergillosis among immunosuppressed patients: A single-centre experience from Argentina.","authors":"Fernando Riera, Julieta Carballo, Carlos Bergallo, Federico Romero, Belén Palacio, Lizet Luque-Aguada, Marcos Marino, Jon Salmanton-García","doi":"10.1016/j.riam.2025.01.003","DOIUrl":"https://doi.org/10.1016/j.riam.2025.01.003","url":null,"abstract":"<p><strong>Background: </strong>Invasive aspergillosis poses a significant threat to immunocompromised individuals. Diagnostic criteria incorporating biomarkers and imaging have improved diagnosis, and treatment options have expanded. However, in Argentina, diverse patient demographics and environmental factors add complexity to managing this infection.</p><p><strong>Aims: </strong>This study aims to explore the epidemiology, diagnostic methods, and treatment of invasive aspergillosis in an Argentine hospital setting.</p><p><strong>Methods: </strong>We collected data from patients with suspected invasive aspergillosis at a tertiary care hospital in Central-Northern Argentina. Variables included demographics, underlying conditions, diagnostic criteria, treatment, and outcomes.</p><p><strong>Results: </strong>With a median age of 44.5 years and a 51% of male patients, our institution conducted invasive aspergillosis screenings on 192 patients, many of whom were battling malignancies (90%). One third of them had the infection set as probable or possible. Imaging (31%) and positive microbiological results (16%) were examples of diagnostic evidence. With an overall mortality rate of 15%, half of the patients got antifungal treatment for a median of seven days. Mortality among the diagnosed patients was 22%. Patients without stem-cell transplantation had a high death rate (31%), although this difference was not statistically significant; in patients having pulmonary nodules (15%) the death rate was not statistically significant either. There were no discernible variations in mortality according to the type of treatment received.</p><p><strong>Conclusions: </strong>Our study reveals that invasive aspergillosis remains a significant issue in high-risk patients, and has a notable mortality rate, particularly among those patients with pulmonary nodules. Computed tomography provides a high diagnostic yield.</p>","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143788867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Isolation of fungi from the Trichosporonaceae family in urine samples from COVID-19 patients: Should we worry about it?
IF 1.5 4区 生物学 Q4 MYCOLOGY Pub Date : 2024-10-01 Epub Date: 2025-02-28 DOI: 10.1016/j.riam.2024.10.003
Fernanda A Oliveira, Andrea R Bernardes-Engemann, Fernando Almeida-Silva, Beatriz da S Motta, Marcos A Almeida, Marcus M Teixeira, Andrea d'Avila Freitas, Kim M Geraldo, Valdiléa G Veloso, Beatriz Grinsztejn, Marcel de Souza Borges Quintana, Rodrigo Almeida-Paes, Rosely M Zancopé-Oliveira

Background: Trichosporon genus encompasses emergent fungal pathogens with an increased incidence that concerns potential multi-drug resistance and mortality, especially in immunocompromised patients. COVID-19 is a disease of pandemic proportions with complications related to cytokine storm and lymphopenia.

Aims: To study the isolation of fungi within the Trichosporanaceae family in patients infected with SARS-CoV-2.

Methods: In this work we recovered 35 fungal isolates belonging to the Trichosporonaceae family from urine samples of 32 patients hospitalized due to COVID-19 complications. We evaluated their mycological characteristics, as well as the patient's clinical aspects.

Results: Trichosporon asahii was the main species identified, followed by Cutaneotrichosporon jirovecii and Trichosporon inkin, respectively. The blood cultures of 20 of these patients were all negative for fungi. Isolation of Trichosporonaceae fungi in urine was associated with high COVID-19 severity. The antifungal susceptibility test showed low MIC values for voriconazole, an antifungal in the first-line treatment of trichosporonosis. In contrast, high MIC values were found in the case of amphotericin B and 5-fluorocytosine in all the species, except for C. jirovecii. Since invasive trichosporonosis was not confirmed, none of the patients were given an antifungal treatment, without affecting the outcome of the patients.

Conclusions: Our results suggest that the isolation in urine of fungi from the Trichosporonaceae family may be associated to more severe forms of the disease COVID-19, but not with an increase in death rate. However, these isolates do not seem to be linked to urinary infections, therefore no antifungal therapy is mandatory in these cases.

{"title":"Isolation of fungi from the Trichosporonaceae family in urine samples from COVID-19 patients: Should we worry about it?","authors":"Fernanda A Oliveira, Andrea R Bernardes-Engemann, Fernando Almeida-Silva, Beatriz da S Motta, Marcos A Almeida, Marcus M Teixeira, Andrea d'Avila Freitas, Kim M Geraldo, Valdiléa G Veloso, Beatriz Grinsztejn, Marcel de Souza Borges Quintana, Rodrigo Almeida-Paes, Rosely M Zancopé-Oliveira","doi":"10.1016/j.riam.2024.10.003","DOIUrl":"10.1016/j.riam.2024.10.003","url":null,"abstract":"<p><strong>Background: </strong>Trichosporon genus encompasses emergent fungal pathogens with an increased incidence that concerns potential multi-drug resistance and mortality, especially in immunocompromised patients. COVID-19 is a disease of pandemic proportions with complications related to cytokine storm and lymphopenia.</p><p><strong>Aims: </strong>To study the isolation of fungi within the Trichosporanaceae family in patients infected with SARS-CoV-2.</p><p><strong>Methods: </strong>In this work we recovered 35 fungal isolates belonging to the Trichosporonaceae family from urine samples of 32 patients hospitalized due to COVID-19 complications. We evaluated their mycological characteristics, as well as the patient's clinical aspects.</p><p><strong>Results: </strong>Trichosporon asahii was the main species identified, followed by Cutaneotrichosporon jirovecii and Trichosporon inkin, respectively. The blood cultures of 20 of these patients were all negative for fungi. Isolation of Trichosporonaceae fungi in urine was associated with high COVID-19 severity. The antifungal susceptibility test showed low MIC values for voriconazole, an antifungal in the first-line treatment of trichosporonosis. In contrast, high MIC values were found in the case of amphotericin B and 5-fluorocytosine in all the species, except for C. jirovecii. Since invasive trichosporonosis was not confirmed, none of the patients were given an antifungal treatment, without affecting the outcome of the patients.</p><p><strong>Conclusions: </strong>Our results suggest that the isolation in urine of fungi from the Trichosporonaceae family may be associated to more severe forms of the disease COVID-19, but not with an increase in death rate. However, these isolates do not seem to be linked to urinary infections, therefore no antifungal therapy is mandatory in these cases.</p>","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":" ","pages":"58-67"},"PeriodicalIF":1.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143537558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Clinical problems in Medical Mycology: Problem number 57].
IF 1.5 4区 生物学 Q4 MYCOLOGY Pub Date : 2024-10-01 Epub Date: 2025-03-04 DOI: 10.1016/j.riam.2025.01.001
Gabriela Santiso, Fernando Messina, Matías Gastón Pérez, Daniela Masini, Mercedes Romero, Emanuel Marin, Alicia Arechavala

A 48-year-old man with no relevant medical history went to a general acute hospital seeking medical attention. He had fever, cough, and chest pain. A chest X-ray revealed pleural effusion, which prompted a puncture and a subsequent culture of the sample; antibiotic treatment was prescribed. Despite the treatment, the man remained febrile, and a new clinical examination suggested a probable onychomycosis of all 20 nails. A rapid HIV test was carried out. The culture from the pleural puncture showed yeast growth identified as Cryptococcus sp., revealing a disseminated disease with central nervous involvement, thus leading to an early diagnosis with a better prognosis.

{"title":"[Clinical problems in Medical Mycology: Problem number 57].","authors":"Gabriela Santiso, Fernando Messina, Matías Gastón Pérez, Daniela Masini, Mercedes Romero, Emanuel Marin, Alicia Arechavala","doi":"10.1016/j.riam.2025.01.001","DOIUrl":"10.1016/j.riam.2025.01.001","url":null,"abstract":"<p><p>A 48-year-old man with no relevant medical history went to a general acute hospital seeking medical attention. He had fever, cough, and chest pain. A chest X-ray revealed pleural effusion, which prompted a puncture and a subsequent culture of the sample; antibiotic treatment was prescribed. Despite the treatment, the man remained febrile, and a new clinical examination suggested a probable onychomycosis of all 20 nails. A rapid HIV test was carried out. The culture from the pleural puncture showed yeast growth identified as Cryptococcus sp., revealing a disseminated disease with central nervous involvement, thus leading to an early diagnosis with a better prognosis.</p>","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":" ","pages":"83-85"},"PeriodicalIF":1.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143568072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Antifungal pipeline: New tools for the treatment of mycoses.
IF 1.5 4区 生物学 Q4 MYCOLOGY Pub Date : 2024-10-01 Epub Date: 2025-02-28 DOI: 10.1016/j.riam.2024.11.001
Stella Wolfgruber, Jon Salmanton-García, Marius Paulin Ngouanom Kuate, Martin Hoenigl, Jose Guillermo Pereira Brunelli

Fungal infections are becoming an escalating public health challenge, particularly among immunocompromised individuals. The partially limited efficacy of current antifungal treatments, their potential adverse effects, and the increasing problem of resistance emphasize the need for new treatment options. Existing antifungal classes-allylamines, azoles, echinocandins, polyenes, and pyrimidine analogs-face challenges due to their similarity with human cells and rising resistance. New antifungal agents, such as ibrexafungerp, rezafungin, oteseconazole, and miltefosine, offer novel mechanisms of action along with reduced toxicity. While antifungal resistance is a growing global concern, fungal infections in low- and middle-income countries (LMICs) present specific challenges with high rates of opportunistic infections like cryptococcosis and endemic mycoses such as histoplasmosis. The World Health Organization's fungal priority pathogens list highlights the prevalence of these infections in LMICs, where limited access to antifungal drugs and misuse are common. This review provides a comprehensive overview of these new agents and their mechanisms, and explores the challenges and roles of antifungal drugs in LMICs, where the burden of fungal infections is high. Continued research and development are essential to address the rising incidence and resistance of fungal infections globally.

真菌感染正日益成为公共卫生的一大挑战,尤其是在免疫力低下的人群中。目前抗真菌治疗的部分疗效有限、潜在的不良反应以及日益严重的抗药性问题,都凸显了对新治疗方案的需求。现有的抗真菌类药物--烯丙基胺类、唑类、棘白菌素类、多烯类和嘧啶类似物--由于与人类细胞的相似性和抗药性的增加而面临挑战。新的抗真菌药物,如伊布沙芬盖普、雷沙芬净、奥特康唑和米替福新等,具有新的作用机制和较低的毒性。抗真菌耐药性是一个日益受到全球关注的问题,而中低收入国家的真菌感染则面临着特殊的挑战,隐球菌病等机会性感染和组织胞浆菌病等地方性真菌病的发病率都很高。世界卫生组织的真菌优先病原体清单强调了这些感染在低收入和中等收入国家的流行程度,而这些国家抗真菌药物的获取途径有限且滥用现象普遍。本综述全面概述了这些新药及其作用机制,并探讨了抗真菌药物在真菌感染负担沉重的低收入和中等收入国家面临的挑战和发挥的作用。要解决全球真菌感染发病率和耐药性不断上升的问题,继续研究和开发至关重要。
{"title":"Antifungal pipeline: New tools for the treatment of mycoses.","authors":"Stella Wolfgruber, Jon Salmanton-García, Marius Paulin Ngouanom Kuate, Martin Hoenigl, Jose Guillermo Pereira Brunelli","doi":"10.1016/j.riam.2024.11.001","DOIUrl":"10.1016/j.riam.2024.11.001","url":null,"abstract":"<p><p>Fungal infections are becoming an escalating public health challenge, particularly among immunocompromised individuals. The partially limited efficacy of current antifungal treatments, their potential adverse effects, and the increasing problem of resistance emphasize the need for new treatment options. Existing antifungal classes-allylamines, azoles, echinocandins, polyenes, and pyrimidine analogs-face challenges due to their similarity with human cells and rising resistance. New antifungal agents, such as ibrexafungerp, rezafungin, oteseconazole, and miltefosine, offer novel mechanisms of action along with reduced toxicity. While antifungal resistance is a growing global concern, fungal infections in low- and middle-income countries (LMICs) present specific challenges with high rates of opportunistic infections like cryptococcosis and endemic mycoses such as histoplasmosis. The World Health Organization's fungal priority pathogens list highlights the prevalence of these infections in LMICs, where limited access to antifungal drugs and misuse are common. This review provides a comprehensive overview of these new agents and their mechanisms, and explores the challenges and roles of antifungal drugs in LMICs, where the burden of fungal infections is high. Continued research and development are essential to address the rising incidence and resistance of fungal infections globally.</p>","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":" ","pages":"68-78"},"PeriodicalIF":1.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143537555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Series of cases of disseminated histoplasmosis in people living with the human immunodeficiency virus: A neglected endemic in Latin America and the Caribbean.
IF 1.5 4区 生物学 Q4 MYCOLOGY Pub Date : 2024-10-01 Epub Date: 2025-03-06 DOI: 10.1016/j.riam.2025.01.002
Maximiliano Gabriel Castro, Erwin Alexander Rottoli, María José Sadonio, Melina Beloso, Andrea Gómez Colussi, María Fernanda Argarañá, Federico Rafael Galluccio

Background: Disseminated histoplasmosis is a common infection in people living with human immunodeficiency virus (HIV) in Latin America and the Caribbean.

Aims: To examine the clinical characteristics and outcomes of disseminated histoplasmosis in people living with HIV focusing on delayed diagnoses.

Methods: A descriptive study in a public hospital in Santa Fe (Argentina) was conducted between 2017 and 2023. Disseminated histoplasmosis was diagnosed through direct examination and/or culture of blood, respiratory secretions, bone marrow, or skin samples.

Results: Twenty-one patients were included (median age: 34 years; 61.9% male). Ten (47.6%) patients were under antiretroviral therapy, but were non-adherent. The median CD4+ count was 10cells/mm3. Fever was the prevailing symptom (19, 90.5%), with a median duration of 30 days. Visceromegalies were observed in 11 patients (52.4%), lymphadenopathy in 10 (47.6%), and skin lesions in 11 (52.4%). All patients had anemia, and 13 (61.9%) had liver function abnormalities. Diagnosis was made through the scraping of mucocutaneous lesions in 11 patients (52.4%). Eight patients (38.1%) were admitted to the Intensive Care Unit, and six (28.6%) died. Five patients (23.8%) had delayed diagnoses.

Conclusions: Disseminated histoplasmosis may be underdiagnosed due to its subacute course and nonspecific clinical presentation. A high index of suspicion is essential, particularly in people living with the HIV.

{"title":"Series of cases of disseminated histoplasmosis in people living with the human immunodeficiency virus: A neglected endemic in Latin America and the Caribbean.","authors":"Maximiliano Gabriel Castro, Erwin Alexander Rottoli, María José Sadonio, Melina Beloso, Andrea Gómez Colussi, María Fernanda Argarañá, Federico Rafael Galluccio","doi":"10.1016/j.riam.2025.01.002","DOIUrl":"10.1016/j.riam.2025.01.002","url":null,"abstract":"<p><strong>Background: </strong>Disseminated histoplasmosis is a common infection in people living with human immunodeficiency virus (HIV) in Latin America and the Caribbean.</p><p><strong>Aims: </strong>To examine the clinical characteristics and outcomes of disseminated histoplasmosis in people living with HIV focusing on delayed diagnoses.</p><p><strong>Methods: </strong>A descriptive study in a public hospital in Santa Fe (Argentina) was conducted between 2017 and 2023. Disseminated histoplasmosis was diagnosed through direct examination and/or culture of blood, respiratory secretions, bone marrow, or skin samples.</p><p><strong>Results: </strong>Twenty-one patients were included (median age: 34 years; 61.9% male). Ten (47.6%) patients were under antiretroviral therapy, but were non-adherent. The median CD4+ count was 10cells/mm<sup>3</sup>. Fever was the prevailing symptom (19, 90.5%), with a median duration of 30 days. Visceromegalies were observed in 11 patients (52.4%), lymphadenopathy in 10 (47.6%), and skin lesions in 11 (52.4%). All patients had anemia, and 13 (61.9%) had liver function abnormalities. Diagnosis was made through the scraping of mucocutaneous lesions in 11 patients (52.4%). Eight patients (38.1%) were admitted to the Intensive Care Unit, and six (28.6%) died. Five patients (23.8%) had delayed diagnoses.</p><p><strong>Conclusions: </strong>Disseminated histoplasmosis may be underdiagnosed due to its subacute course and nonspecific clinical presentation. A high index of suspicion is essential, particularly in people living with the HIV.</p>","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":" ","pages":"79-82"},"PeriodicalIF":1.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143586588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pneumocystis jirovecii in the lower respiratory tract of immunocompetent individuals.
IF 1.5 4区 生物学 Q4 MYCOLOGY Pub Date : 2024-10-01 Epub Date: 2025-01-25 DOI: 10.1016/j.riam.2024.10.002
Beatriz Gálvez, Consuelo Ferrer, Violeta Esteban, José Noberto Sancho-Chust, Beatriz Amat, Eusebi Chiner, Maria Francisca Colom

Background: Pneumocystis jirovecii colonization rates in healthy patients are unclear. Previously published studies suggest that the fungus could play a role in the physiopathology and progression of chronic respiratory diseases.

Aims: The goal of this study was to determine the prevalence of colonization by this fungus in the lower respiratory tract of immunocompetent patients who are not at risk of dysbiosis.

Methods: The presence of P. jirovecii was confirmed in the bronchoalveolar lavage (BAL) samples from adults who underwent bronchoscopy for non-infectious reasons, had no immunosuppressive factors, and had not been on antibiotic treatment for at least one month. The results were compared with those obtained in the study on the presence of Pneumocystis in environmental dust samples obtained by swabbing surfaces in the participating subjects' domestic settings. Real-time PCR was the technique used for detecting the fungus in both types of samples.

Results: A total of 97 BAL samples and 49 domestic environment samples were studied. The medical reasons for needing a bronchoscopy were, mainly, the examination of both pulmonary neoplasm in 55 patients (57%) and diffuse interstitial lung disease in 21 patients (22%). The overall prevalence of P. jirovecii in our population was 7.22% in BAL samples and 0% in domestic samples.

Conclusions: The presence of P. jirovecii in the lower respiratory tract is relevantly linked with the patient's immune status, not with an underlying pathology. Prevalence is low in immunocompetent individuals who do not have any infectious pathology and are not having antimicrobial treatments. Our results do not enable us to figure out which the environmental niche of P. jirovecii is.

{"title":"Pneumocystis jirovecii in the lower respiratory tract of immunocompetent individuals.","authors":"Beatriz Gálvez, Consuelo Ferrer, Violeta Esteban, José Noberto Sancho-Chust, Beatriz Amat, Eusebi Chiner, Maria Francisca Colom","doi":"10.1016/j.riam.2024.10.002","DOIUrl":"10.1016/j.riam.2024.10.002","url":null,"abstract":"<p><strong>Background: </strong>Pneumocystis jirovecii colonization rates in healthy patients are unclear. Previously published studies suggest that the fungus could play a role in the physiopathology and progression of chronic respiratory diseases.</p><p><strong>Aims: </strong>The goal of this study was to determine the prevalence of colonization by this fungus in the lower respiratory tract of immunocompetent patients who are not at risk of dysbiosis.</p><p><strong>Methods: </strong>The presence of P. jirovecii was confirmed in the bronchoalveolar lavage (BAL) samples from adults who underwent bronchoscopy for non-infectious reasons, had no immunosuppressive factors, and had not been on antibiotic treatment for at least one month. The results were compared with those obtained in the study on the presence of Pneumocystis in environmental dust samples obtained by swabbing surfaces in the participating subjects' domestic settings. Real-time PCR was the technique used for detecting the fungus in both types of samples.</p><p><strong>Results: </strong>A total of 97 BAL samples and 49 domestic environment samples were studied. The medical reasons for needing a bronchoscopy were, mainly, the examination of both pulmonary neoplasm in 55 patients (57%) and diffuse interstitial lung disease in 21 patients (22%). The overall prevalence of P. jirovecii in our population was 7.22% in BAL samples and 0% in domestic samples.</p><p><strong>Conclusions: </strong>The presence of P. jirovecii in the lower respiratory tract is relevantly linked with the patient's immune status, not with an underlying pathology. Prevalence is low in immunocompetent individuals who do not have any infectious pathology and are not having antimicrobial treatments. Our results do not enable us to figure out which the environmental niche of P. jirovecii is.</p>","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":" ","pages":"51-57"},"PeriodicalIF":1.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143047725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fungal ball due to a species of the Scedosporium apiospermum complex in a post-tuberculosis patient 结核后患者的一种顶孢复合体引起的真菌球。
IF 1.5 4区 生物学 Q4 MYCOLOGY Pub Date : 2024-04-01 DOI: 10.1016/j.riam.2024.07.001
Gabriela López Daneri , Natali Niebles , Agustina Bustos , Pablo Martin Bravo , Edith Susana Paterno , Fernando Picco , Alejandra Margari , María Teresa Mujica

Background

Scedosporium species are considered emerging pathogens causing illness in immunocompetent and immunocompromised hosts.

Case report

A case of non-invasive pulmonary (fungal ball) infection by Scedosporium apiospermum complex in a 49-year-old female with bronchiectasis and cavities secondary to tuberculosis is described. The patient had a history of three years of cough and hemoptysis. A computed tomography scan of the thorax revealed the presence of a cavity in the lower lobe of the right lung, associated with bronchiectasis. A combination of surgical debridement and antifungal therapy (voriconazole) was the treatment of choice. Pulmonary resection (right lower lobectomy) was performed, and samples were sent for microbiological culture and histopathological examination; by means of the latter technique, hyphae were shown. The identification of Scedosporium angustum, a phylogenetic species of the S. apiospermum complex, was obtained by amplifying and sequencing the β-tubulin locus. Voriconazole therapy was started at a loading dose of 800 mg/12 h for the first 24 h, followed by 200 mg/12 h for 6 months. The patient responded favorably to the treatment and remained asymptomatic.

Conclusions

This case emphasizes the importance of considering Scedosporium species in the differential diagnosis of fungal balls by Aspergillus.
.
背景:隐孢子菌被认为是在免疫功能正常和免疫功能低下的宿主中引起疾病的新兴病原体。病例报告:一个非侵入性肺(真菌球)感染的病例顶精子梭孢复合体在49岁的女性支气管扩张和继发于肺结核腔。患者有三年咳嗽咯血病史。胸部电脑断层扫描显示右肺下叶有空洞,伴支气管扩张。手术清创联合抗真菌治疗(伏立康唑)是首选的治疗方法。行肺切除术(右下肺叶切除术),送标本进行微生物培养和组织病理学检查;通过后一种技术,菌丝被显示出来。通过扩增β-微管蛋白位点并对其序列进行测序,确定了尖孢霉复合体的一个系统发育物种——Scedosporium angustum。伏立康唑治疗开始时的负荷剂量为800mg/12h,前24h,随后为200mg/12h,持续6个月。病人对治疗反应良好,并保持无症状。结论:本病例强调了在曲霉真菌球的鉴别诊断中考虑孢子菌种类的重要性。
{"title":"Fungal ball due to a species of the Scedosporium apiospermum complex in a post-tuberculosis patient","authors":"Gabriela López Daneri ,&nbsp;Natali Niebles ,&nbsp;Agustina Bustos ,&nbsp;Pablo Martin Bravo ,&nbsp;Edith Susana Paterno ,&nbsp;Fernando Picco ,&nbsp;Alejandra Margari ,&nbsp;María Teresa Mujica","doi":"10.1016/j.riam.2024.07.001","DOIUrl":"10.1016/j.riam.2024.07.001","url":null,"abstract":"<div><h3>Background</h3><div><em>Scedosporium</em> species are considered emerging pathogens causing illness in immunocompetent and immunocompromised hosts.</div></div><div><h3>Case report</h3><div>A case of non-invasive pulmonary (fungal ball) infection by <em>Scedosporium apiospermum</em> complex in a 49-year-old female with bronchiectasis and cavities secondary to tuberculosis is described. The patient had a history of three years of cough and hemoptysis. A computed tomography scan of the thorax revealed the presence of a cavity in the lower lobe of the right lung, associated with bronchiectasis. A combination of surgical debridement and antifungal therapy (voriconazole) was the treatment of choice. Pulmonary resection (right lower lobectomy) was performed, and samples were sent for microbiological culture and histopathological examination; by means of the latter technique, hyphae were shown. The identification of <em>Scedosporium angustum</em>, a phylogenetic species of the <em>S. apiospermum</em> complex, was obtained by amplifying and sequencing the β-tubulin locus. Voriconazole therapy was started at a loading dose of 800<!--> <!-->mg/12<!--> <!-->h for the first 24<!--> <!-->h, followed by 200<!--> <!-->mg/12<!--> <!-->h for 6 months. The patient responded favorably to the treatment and remained asymptomatic.</div></div><div><h3>Conclusions</h3><div>This case emphasizes the importance of considering <em>Scedosporium</em> species in the differential diagnosis of fungal balls by <em>Aspergillus</em>.</div><div>.</div></div>","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":"41 2","pages":"Pages 43-47"},"PeriodicalIF":1.5,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142792350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nails and skin co-infection by Fusarium verticillioides and Proteus vulgaris secondary to arterial occlusion of lower extremity 下肢动脉闭塞继发的黄萎病镰刀菌和寻常变形杆菌并发指甲和皮肤感染。
IF 1.5 4区 生物学 Q4 MYCOLOGY Pub Date : 2024-04-01 DOI: 10.1016/j.riam.2021.07.003
Yahui Feng , Zhiya Yang , Dengli Li , Juanjuan Li , Dongmei Li , Sybren de Hoog , Dongmei Shi

Background

Post-traumatic Fusarium infection is rare. Arterial occlusive disease, a common vascular disorder in the elderly, often leads to ischemic necrosis of the lower extremities, which in turn increases the likelihood of secondary infections. Those secondary infections can be caused by bacteria, virus, or fungi.

Case report

We present the case of a 64-year-old male patient with a co-infection by Fusarium verticillioides and Proteus vulgaris on nails and foot skin, secondary to senile arterial occlusion on the lower extremities. The skin and nails recovered well after following stent implantation and a combination treatment of itraconazole and a macrolide antibiotic. A retrospective analysis of the literature identified 17 patients with Fusarium infection, all of whom were immunocompetent.

Conclusions

Trauma may be a predisposing cause of Fusarium infection. Combination of oral itraconazole and terbinafine, or amphotericin B and surgical means, are all effective treatments.
背景:创伤后镰刀菌感染是罕见的。动脉闭塞性疾病是老年人常见的血管疾病,常导致下肢缺血性坏死,进而增加继发感染的可能性。这些继发性感染可能由细菌、病毒或真菌引起。病例报告:我们报告一例64岁男性患者,指甲和足部皮肤同时感染黄斑镰刀菌和寻常变形杆菌,继发于下肢老年性动脉闭塞。皮肤和指甲在支架植入和伊曲康唑和大环内酯类抗生素联合治疗后恢复良好。回顾性分析文献发现17例镰孢菌感染患者,所有患者均具有免疫功能。结论:外伤可能是镰刀菌感染的易感原因。口服伊曲康唑联合特比萘芬或两性霉素B联合手术治疗均是有效的治疗方法。
{"title":"Nails and skin co-infection by Fusarium verticillioides and Proteus vulgaris secondary to arterial occlusion of lower extremity","authors":"Yahui Feng ,&nbsp;Zhiya Yang ,&nbsp;Dengli Li ,&nbsp;Juanjuan Li ,&nbsp;Dongmei Li ,&nbsp;Sybren de Hoog ,&nbsp;Dongmei Shi","doi":"10.1016/j.riam.2021.07.003","DOIUrl":"10.1016/j.riam.2021.07.003","url":null,"abstract":"<div><h3>Background</h3><div>Post-traumatic <em>Fusarium</em> infection is rare. Arterial occlusive disease, a common vascular disorder in the elderly, often leads to ischemic necrosis of the lower extremities, which in turn increases the likelihood of secondary infections. Those secondary infections can be caused by bacteria, virus, or fungi.</div></div><div><h3>Case report</h3><div>We present the case of a 64-year-old male patient with a co-infection by <em>Fusarium verticillioides</em> and <em>Proteus vulgaris</em> on nails and foot skin, secondary to senile arterial occlusion on the lower extremities. The skin and nails recovered well after following stent implantation and a combination treatment of itraconazole and a macrolide antibiotic. A retrospective analysis of the literature identified 17 patients with <em>Fusarium</em> infection, all of whom were immunocompetent.</div></div><div><h3>Conclusions</h3><div>Trauma may be a predisposing cause of <em>Fusarium</em> infection. Combination of oral itraconazole and terbinafine, or amphotericin B and surgical means, are all effective treatments.</div></div>","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":"41 2","pages":"Pages 37-42"},"PeriodicalIF":1.5,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142807914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Aspergillus hiratsukae as a causative agent of endophthalmitis: A case report 作为眼内炎致病菌的平曲霉:病例报告。
IF 1.5 4区 生物学 Q4 MYCOLOGY Pub Date : 2024-04-01 DOI: 10.1016/j.riam.2024.10.001
Cristian Mateo León , Ángeles Sampere Martínez , Isabel Fabelo Hidalgo , Diego García Martínez de Artola

Background

Aspergillus flavus and Aspergillus fumigatus are commonly involved in fungal endophthalmitis. However, other less pathogenic species of the genus are also causal agents of opportunistic infections. Aspergillus hiratsukae, a species within Aspergillus section Fumigati, is an uncommon fungus responsible for a few infectious cases worldwide.

Case report

We present a case of post-surgical endophthalmitis in a man caused by A. hiratsukae after phacoemulsification surgery and intraocular lens implantation. The patient underwent an urgent vitrectomy in which infectious foci were observed. Due to adverse clinical evolution, evisceration was performed five days after admission. In the study of the intraoperative samples fungal growth was observed. Microscopic analysis showed conidial heads resembling Aspergillus species. The final identification of A. hiratsukae was achieved by amplifying and sequencing the ITS1-5.8S-ITS2 spacer region. Antifungal susceptibility testing was performed using the method described by EUCAST. The isolate exhibited sensitivity to azoles and polyenes.

Conclusions

Due to the morphological similarity of the Aspergillus species, molecular techniques are essential for discriminating among them, as there are different antifungal susceptibility profiles within the same complex. Further studies to improve clinical surveillance, make an early diagnosis and start a targeted therapy are necessary.
背景:黄曲霉和烟曲霉通常与真菌性眼内炎有关。然而,其他致病性较低的属也是机会性感染的致病因子。平松曲霉是烟曲霉科的一种,是一种罕见的真菌,在世界范围内引起一些传染性病例。病例报告:我们报告一例在超声乳化手术和人工晶状体植入术后,由平突芽胞杆菌引起的术后眼内炎。患者接受了紧急玻璃体切除术,其中观察到感染灶。由于临床进展不良,在入院5天后进行了内脏切除。术中标本观察真菌生长情况。显微分析显示分生孢子头类似曲霉属。通过对ITS1-5.8S-ITS2间隔区进行扩增和测序,最终鉴定了平松麻属。采用EUCAST方法进行抗真菌药敏试验。该分离物对偶氮和多烯敏感。结论:由于曲霉种类的形态相似性,在同一复合体内存在不同的抗真菌药敏谱,因此分子技术是鉴别曲霉种类的必要手段。进一步研究以改善临床监测、早期诊断和开始靶向治疗是必要的。
{"title":"Aspergillus hiratsukae as a causative agent of endophthalmitis: A case report","authors":"Cristian Mateo León ,&nbsp;Ángeles Sampere Martínez ,&nbsp;Isabel Fabelo Hidalgo ,&nbsp;Diego García Martínez de Artola","doi":"10.1016/j.riam.2024.10.001","DOIUrl":"10.1016/j.riam.2024.10.001","url":null,"abstract":"<div><h3>Background</h3><div><em>Aspergillus flavus</em> and <em>Aspergillus fumigatus</em> are commonly involved in fungal endophthalmitis. However, other less pathogenic species of the genus are also causal agents of opportunistic infections. <em>Aspergillus hiratsukae</em>, a species within <em>Aspergillus</em> section <em>Fumigati</em>, is an uncommon fungus responsible for a few infectious cases worldwide.</div></div><div><h3>Case report</h3><div>We present a case of post-surgical endophthalmitis in a man caused by <em>A. hiratsukae</em> after phacoemulsification surgery and intraocular lens implantation. The patient underwent an urgent vitrectomy in which infectious foci were observed. Due to adverse clinical evolution, evisceration was performed five days after admission. In the study of the intraoperative samples fungal growth was observed. Microscopic analysis showed conidial heads resembling <em>Aspergillus</em> species. The final identification of <em>A. hiratsukae</em> was achieved by amplifying and sequencing the ITS1-5.8S-ITS2 spacer region. Antifungal susceptibility testing was performed using the method described by EUCAST. The isolate exhibited sensitivity to azoles and polyenes.</div></div><div><h3>Conclusions</h3><div>Due to the morphological similarity of the <em>Aspergillus</em> species, molecular techniques are essential for discriminating among them, as there are different antifungal susceptibility profiles within the same complex. Further studies to improve clinical surveillance, make an early diagnosis and start a targeted therapy are necessary.</div></div>","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":"41 2","pages":"Pages 48-50"},"PeriodicalIF":1.5,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142819031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Revista Iberoamericana De Micologia
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1