首页 > 最新文献

Revista Iberoamericana De Micologia最新文献

英文 中文
Possible Trichosporon asahii urinary tract infection in a critically ill COVID-19 patient COVID-19危重症患者可能的朝日毛孢丝状体尿路感染
IF 1.9 4区 生物学 Q4 MYCOLOGY Pub Date : 2022-04-01 DOI: 10.1016/j.riam.2022.05.001
Marco Vianello , Daniel F.F. de Jesus , Jorge M. Sampaio , Guilherme M. de Oliveira , Nilton Lincopan , Kelly Ishida

Background

Trichosporon asahii, an emerging fungal pathogen, has been frequently associated with invasive infections in critically ill patients.

Case report

A 74-year-old male patient diagnosed with COVID-19 was admitted to an Intensive Care Unit (ICU). During hospitalization, the patient displayed episodes of bacteremia by Staphylococcus haemolyticus and a possible urinary tract infection by T. asahii. While the bacterial infection was successfully treated using broad-spectrum antibiotics, the fungal infection in the urinary tract was unsuccessfully treated with anidulafungin and persisted until the patient died.

Conclusions

With the evolving COVID-19 pandemic, invasive fungal infections have been increasingly reported, mainly after taking immunosuppressant drugs associated with long-term broad-spectrum antibiotic therapy. Although Candida and Aspergillus are still the most prevalent invasive fungi, T. asahii and other agents have emerged in critically ill patients. Therefore, a proper surveillance and diagnosing any fungal infection are paramount, particularly in COVID-19 immunocompromised populations.

背景:朝日毛磷霉是一种新兴的真菌病原体,常与危重患者的侵袭性感染有关。病例报告一名74岁的男性患者被诊断为COVID-19,并被送入重症监护病房(ICU)。住院期间,患者出现溶血葡萄球菌引起的菌血症发作,并可能出现asahi t尿路感染。虽然使用广谱抗生素成功治疗了细菌感染,但尿路真菌感染无法用阿尼杜冯宁治疗,并持续到患者死亡。结论随着COVID-19大流行的发展,侵袭性真菌感染的报道越来越多,主要是在长期服用免疫抑制药物和广谱抗生素治疗后。虽然念珠菌和曲霉菌仍然是最普遍的侵袭性真菌,但朝日弧菌和其他病原体已经出现在危重患者中。因此,适当监测和诊断任何真菌感染至关重要,特别是在COVID-19免疫功能低下人群中。
{"title":"Possible Trichosporon asahii urinary tract infection in a critically ill COVID-19 patient","authors":"Marco Vianello ,&nbsp;Daniel F.F. de Jesus ,&nbsp;Jorge M. Sampaio ,&nbsp;Guilherme M. de Oliveira ,&nbsp;Nilton Lincopan ,&nbsp;Kelly Ishida","doi":"10.1016/j.riam.2022.05.001","DOIUrl":"10.1016/j.riam.2022.05.001","url":null,"abstract":"<div><h3>Background</h3><p><em>Trichosporon asahii</em>, an emerging fungal pathogen, has been frequently associated with invasive infections in critically ill patients.</p></div><div><h3>Case report</h3><p>A 74-year-old male patient diagnosed with COVID-19 was admitted to an Intensive Care Unit (ICU). During hospitalization, the patient displayed episodes of bacteremia by <em>Staphylococcus haemolyticus</em> and a possible urinary tract infection by <em>T. asahii</em>. While the bacterial infection was successfully treated using broad-spectrum antibiotics, the fungal infection in the urinary tract was unsuccessfully treated with anidulafungin and persisted until the patient died.</p></div><div><h3>Conclusions</h3><p>With the evolving COVID-19 pandemic, invasive fungal infections have been increasingly reported, mainly after taking immunosuppressant drugs associated with long-term broad-spectrum antibiotic therapy. Although <em>Candida</em> and <em>Aspergillus</em> are still the most prevalent invasive fungi, <em>T. asahii</em> and other agents have emerged in critically ill patients. Therefore, a proper surveillance and diagnosing any fungal infection are paramount, particularly in COVID-19 immunocompromised populations.</p></div>","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":"39 2","pages":"Pages 54-56"},"PeriodicalIF":1.9,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9189001/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40471897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Epizootic lymphangitis: A neglected disease of working equids 兽疫性淋巴管炎:一种被劳动马匹忽视的疾病
IF 1.9 4区 生物学 Q4 MYCOLOGY Pub Date : 2022-01-01 DOI: 10.1016/j.riam.2021.11.001
F. Javier Cabañes
{"title":"Epizootic lymphangitis: A neglected disease of working equids","authors":"F. Javier Cabañes","doi":"10.1016/j.riam.2021.11.001","DOIUrl":"10.1016/j.riam.2021.11.001","url":null,"abstract":"","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":"39 1","pages":"Pages 4-5"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39769898","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
Lodderomyces elongisporus: ¿agente causal de vaginitis? 长孢Lodderomyces elongisporus:阴道炎的病原体?
IF 1.9 4区 生物学 Q4 MYCOLOGY Pub Date : 2022-01-01 DOI: 10.1016/j.riam.2021.11.002
Laura Sante , Patricia Capón , Amparo Coira Nieto , Pilar Alonso-García
{"title":"Lodderomyces elongisporus: ¿agente causal de vaginitis?","authors":"Laura Sante ,&nbsp;Patricia Capón ,&nbsp;Amparo Coira Nieto ,&nbsp;Pilar Alonso-García","doi":"10.1016/j.riam.2021.11.002","DOIUrl":"10.1016/j.riam.2021.11.002","url":null,"abstract":"","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":"39 1","pages":"Page 28"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39871023","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: 1
Ángela Restrepo Moreno: The wise woman par excellence! 莫雷诺:The wiseÁngela雷斯特雷波出类拔萃的女人!
IF 1.9 4区 生物学 Q4 MYCOLOGY Pub Date : 2022-01-01 DOI: 10.1016/j.riam.2022.03.001
{"title":"Ángela Restrepo Moreno: The wise woman par excellence!","authors":"","doi":"10.1016/j.riam.2022.03.001","DOIUrl":"10.1016/j.riam.2022.03.001","url":null,"abstract":"","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":"39 1","pages":"Page 1"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1130140622000146/pdfft?md5=459009a894a664af30b0647cf405382d&pid=1-s2.0-S1130140622000146-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133554411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estado actual de la histoplasmosis diseminada progresiva en pacientes con infección por el VIH en un hospital de tercer nivel en Perú 秘鲁一家三级医院艾滋病毒感染患者进行性传播组织胞浆菌病的现状
IF 1.9 4区 生物学 Q4 MYCOLOGY Pub Date : 2022-01-01 DOI: 10.1016/j.riam.2021.10.001
Omayra Chincha , Beatriz Bustamante

Background

Progressive disseminated histoplasmosis (PDH) is an endemic disease in most of Latin America, especially among patients with HIV. There are few reports about this disease in Peru.

Aims

To describe the clinical, epidemiological and mycological features of patients with PDH and HIV evaluated in a tertiary hospital.

Methods

A retrospective study to find out the data of patients diagnosed with PDH and HIV in the period 2000–2019 was carried out. For the statistical analysis of quantitative variables, measures of central tendency and dispersion were used; for the qualitative variables, absolute and relative frequencies were used.

Results

Forty-three male patients with PDH were diagnosed in the study period, with a median age of 33 years (IQR: 29–38 years) and a median CD4 lymphocytes count of 39 cells/mm3 (IQR: 20–83 cells/mm3). Eighty six percent of the patients were born or had travelled to the jungle, 58.1% were alcohol users and 16.1% had a history of pulmonary tuberculosis. When compared to histopathology, the culture had a better sensitivity to achieve a diagnosis (p < 0.05).

Conclusions

Peruvian patients with PDH and HIV infection were mainly young male adults that were born or had travelled to the jungle, with a CD4 count below 100 cells/mm3. In patients with the described characteristics it would be advisable to check for PDH. Implementing rapid diagnostic tests is also necessary.

进展性播散性组织胞浆菌病(PDH)是拉丁美洲大部分地区的一种地方病,特别是在艾滋病毒感染者中。秘鲁很少有关于这种疾病的报道。目的了解某三级医院PDH合并HIV患者的临床、流行病学和真菌学特征。方法对2000-2019年诊断为PDH和HIV的患者资料进行回顾性研究。定量变量的统计分析采用集中趋势和离散度度量;对于定性变量,使用绝对频率和相对频率。结果研究期间确诊的男性PDH患者43例,中位年龄33岁(IQR: 29-38岁),中位CD4淋巴细胞计数39个细胞/mm3 (IQR: 20-83个细胞/mm3)。86%的患者出生或去过丛林,58.1%的患者酗酒,16.1%的患者有肺结核史。与组织病理学相比,培养具有更好的诊断敏感性(p <0.05)。结论秘鲁PDH合并HIV感染患者以出生或去过丛林的年轻成年男性为主,CD4细胞计数低于100细胞/mm3。对于具有上述特征的患者,建议检查PDH。实施快速诊断测试也是必要的。
{"title":"Estado actual de la histoplasmosis diseminada progresiva en pacientes con infección por el VIH en un hospital de tercer nivel en Perú","authors":"Omayra Chincha ,&nbsp;Beatriz Bustamante","doi":"10.1016/j.riam.2021.10.001","DOIUrl":"https://doi.org/10.1016/j.riam.2021.10.001","url":null,"abstract":"<div><h3>Background</h3><p>Progressive disseminated histoplasmosis (PDH) is an endemic disease in most of Latin America, especially among patients with HIV. There are few reports about this disease in Peru.</p></div><div><h3>Aims</h3><p>To describe the clinical, epidemiological and mycological features of patients with PDH and HIV evaluated in a tertiary hospital.</p></div><div><h3>Methods</h3><p>A retrospective study to find out the data of patients diagnosed with PDH and HIV in the period 2000–2019 was carried out. For the statistical analysis of quantitative variables, measures of central tendency and dispersion were used; for the qualitative variables, absolute and relative frequencies were used.</p></div><div><h3>Results</h3><p>Forty-three male patients with PDH were diagnosed in the study period, with a median age of 33 years (IQR: 29–38 years) and a median CD<sub>4</sub> lymphocytes count of 39<!--> <!-->cells/mm<sup>3</sup> (IQR: 20–83 cells/mm<sup>3</sup>). Eighty six percent of the patients were born or had travelled to the jungle, 58.1% were alcohol users and 16.1% had a history of pulmonary tuberculosis. When compared to histopathology, the culture had a better sensitivity to achieve a diagnosis (<em>p</em> <!-->&lt;<!--> <!-->0.05).</p></div><div><h3>Conclusions</h3><p>Peruvian patients with PDH and HIV infection were mainly young male adults that were born or had travelled to the jungle, with a CD<sub>4</sub> count below 100<!--> <!-->cells/mm<sup>3</sup>. In patients with the described characteristics it would be advisable to check for PDH. Implementing rapid diagnostic tests is also necessary.</p></div>","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":"39 1","pages":"Pages 25-27"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92219040","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: 1
Unusual form of histoplasmosis in dogs and cats 狗和猫的组织胞浆菌病的不寻常形式
IF 1.9 4区 生物学 Q4 MYCOLOGY Pub Date : 2022-01-01 DOI: 10.1016/j.riam.2021.09.001
F. Javier Cabañes
{"title":"Unusual form of histoplasmosis in dogs and cats","authors":"F. Javier Cabañes","doi":"10.1016/j.riam.2021.09.001","DOIUrl":"10.1016/j.riam.2021.09.001","url":null,"abstract":"","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":"39 1","pages":"Pages 2-3"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39686429","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
Potencial de la levadura oleaginosa Clavispora lusitaniae Hi2 en la conversión de residuos agroindustriales a lípidos 油料酵母lusitaniae Hi2在农用工业废弃物转化为脂类方面的潜力
IF 1.9 4区 生物学 Q4 MYCOLOGY Pub Date : 2022-01-01 DOI: 10.1016/j.riam.2021.07.001
Aime Frida Moran-Mejía , Rosa Angélica Guillén-Garcés , Gabriela Eleonora Moeller-Chávez , Jesús Hernández-Romano , María Inés Chávez-Béjar , Clarita Olvera-Carranza , Luis Gerardo Treviño-Quintanilla

Background

Single-cell oils obtained from oleaginous microorganisms by using lignocellulosic waste hydrolysates are an alternative for producing biodiesel.

Aims

To isolate a yeast strain able to produce lipids from centrifuged nejayote (CN), hydrolyzed nejayote solids (HNS) and hydrolyzed sugarcane bagasse (HSB).

Methods

In order to identify the yeasts recovered, 26S ribosomal DNA was sequenced. The metabolic profile was assessed by using API20C AUX strips. The nutritional characterization of CN, HNS and HSB was performed by quantifying reducing sugars, total carbohydrates, starch, protein and total nitrogen. The biomass and lipid production ability were evaluated by performing growth kinetics of Clavispora lusitaniae Hi2 in combined culture media.

Results

Six oleaginous yeast strains were isolated and identified, selecting C. lusitaniae Hi2 to study its lipids production by using nejayote. The C. lusitaniae Hi2 strain can use glucose, xylose, arabinose, galactose and cellobiose as carbon sources. Cultures of C. lusitaniae Hi2 presented the best biomass (5.6±0.28 g/L) and lipid production (0.99±0.09 g/L) at 20 h of incubation with the CN:HNS media in the 25:75 and 50:50 ratios, respectively.

Conclusions

The use of CN, HNS and HSB for the growth of C. lusitaniae Hi2 is an option to take advantage of these agro-industrial residues and generate compounds of biotechnological interest.

利用木质纤维素废物水解物从产油微生物中获得的单细胞油是生产生物柴油的一种替代方法。目的分离一株能从离心内jayote (CN)、水解内jayote固体(HNS)和水解甘蔗渣(HSB)中产生脂质的酵母菌株。方法对回收的酵母菌进行26S核糖体DNA测序鉴定。采用API20C AUX试纸评估代谢谱。通过定量测定还原糖、总碳水化合物、淀粉、蛋白质和总氮,对CN、HNS和HSB进行营养鉴定。通过菌丝体Hi2在组合培养基上的生长动力学,评价菌丝体的生物量和产脂能力。结果分离鉴定了6株产油酵母菌株,选取C. lusitaniae Hi2对其利用nejayote产脂进行了研究。C. lusitaniae Hi2菌株可以利用葡萄糖、木糖、阿拉伯糖、半乳糖和纤维素糖作为碳源。在CN:HNS培养基中以25:75和50:50的比例培养20 h时,lusitaniae Hi2的生物量(5.6±0.28 g/L)和脂质产量(0.99±0.09 g/L)最高。结论利用CN、HNS和HSB培养卢西塔尼亚C. Hi2是一种利用这些农工残留物产生具有生物技术价值的化合物的选择。
{"title":"Potencial de la levadura oleaginosa Clavispora lusitaniae Hi2 en la conversión de residuos agroindustriales a lípidos","authors":"Aime Frida Moran-Mejía ,&nbsp;Rosa Angélica Guillén-Garcés ,&nbsp;Gabriela Eleonora Moeller-Chávez ,&nbsp;Jesús Hernández-Romano ,&nbsp;María Inés Chávez-Béjar ,&nbsp;Clarita Olvera-Carranza ,&nbsp;Luis Gerardo Treviño-Quintanilla","doi":"10.1016/j.riam.2021.07.001","DOIUrl":"https://doi.org/10.1016/j.riam.2021.07.001","url":null,"abstract":"<div><h3>Background</h3><p>Single-cell oils obtained from oleaginous microorganisms by using lignocellulosic waste hydrolysates are an alternative for producing biodiesel.</p></div><div><h3>Aims</h3><p>To isolate a yeast strain able to produce lipids from centrifuged nejayote (CN), hydrolyzed nejayote solids (HNS) and hydrolyzed sugarcane bagasse (HSB).</p></div><div><h3>Methods</h3><p>In order to identify the yeasts recovered, 26S ribosomal DNA was sequenced. The metabolic profile was assessed by using API20C AUX strips. The nutritional characterization of CN, HNS and HSB was performed by quantifying reducing sugars, total carbohydrates, starch, protein and total nitrogen. The biomass and lipid production ability were evaluated by performing growth kinetics of <em>Clavispora lusitaniae</em> Hi2 in combined culture media.</p></div><div><h3>Results</h3><p>Six oleaginous yeast strains were isolated and identified, selecting <em>C. lusitaniae</em> Hi2 to study its lipids production by using nejayote. The <em>C. lusitaniae</em> Hi2 strain can use glucose, xylose, arabinose, galactose and cellobiose as carbon sources. Cultures of <em>C. lusitaniae</em> Hi2 presented the best biomass (5.6<span>±</span>0.28 g/L) and lipid production (0.99<span>±</span>0.09 g/L) at 20 h of incubation with the CN:HNS media in the 25:75 and 50:50 ratios, respectively.</p></div><div><h3>Conclusions</h3><p>The use of CN, HNS and HSB for the growth of <em>C. lusitaniae</em> Hi2 is an option to take advantage of these agro-industrial residues and generate compounds of biotechnological interest.</p></div>","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":"39 1","pages":"Pages 6-15"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92266552","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: 1
Lethal destructive sinusopathy due to amphotericin B-resistant Aspergillus flavus: A case report 两性霉素b耐药黄曲霉致致致命性破坏性鼻窦病1例。
IF 1.9 4区 生物学 Q4 MYCOLOGY Pub Date : 2022-01-01 DOI: 10.1016/j.riam.2022.01.001
Tiago Luiz Lagedo Ferraz , Eduardo Marques Araújo , Rodolfo Froes Calixto , Monique Lima Martins Sampaio , Luciana Rezende Bandeira de Mello , Kaliny Benicio Torres , Rossana de Aguiar Cordeiro , Patrice Le Pape , Reginaldo Gonçalves de Lima-Neto

Background

The prevalence of pulmonary aspergillosis and the importance of its early diagnosis are recognized. However, non-pulmonary involvement, including the sinuses region, is not frequently reported, and an infection in this area can affect all paranasal sinuses (pansinusopathy), being a rare pathology that affects immunocompromised hosts. Recent studies have highlighted the occurrence of Aspergillus flavus resistant to antifungal therapy. Therefore, a nasal sinus infection by resistant Aspergillus strains in immunocompromised patients may be linked to a high risk of lethality.

Case report

We are reporting a resistant A. flavus infection in an allogeneic hematopoietic stem cell transplant recipient with episodes of febrile neutropenia, and prolonged use of various antibacterial drugs and antifungal prophylaxis. The patient underwent brain magnetic resonance, which showed the presence of pansinusopathy, and presented necrosis in the left nasal region. Direct microscopic examination of a sample taken from the nasal mucosa revealed the presence of septate hyphae and conidiophores resembling those of A. flavus, that species being the identification achieved with MALDI-TOF MS. Antifungigram was performed by microdilution in broth (EUCAST-E.DEF. 9.3.2) and E-test, and resistance to amphotericin B was shown in both tests. The patient died after septic shock and hemorrhage.

Conclusions

Invasive fungal infections due to amphotericin-B resistant A. flavus may lead to the death of the patient due to an ineffective therapeutic management. Therefore, antifungal susceptibility testing are of utmost importance for administering the proper treatment.

背景肺曲霉病的流行及其早期诊断的重要性已得到认识。然而,包括鼻窦区域在内的非肺部受累并不常见,该区域的感染可影响所有鼻窦(泛鼻窦病),这是一种罕见的影响免疫功能低下宿主的病理。最近的研究强调了黄曲霉抗真菌治疗的发生。因此,免疫功能低下患者的耐药曲霉菌株引起的鼻窦感染可能与高致死率有关。病例报告:我们报告一例异体造血干细胞移植受者发生耐药性黄芽孢杆菌感染,伴发热性中性粒细胞减少发作,长期使用各种抗菌药物和抗真菌预防。患者行脑磁共振检查,显示有全窦病变,左鼻区出现坏死。对鼻黏膜标本进行直接显微镜检查,发现存在类似黄芽孢杆菌的分离菌丝和分生孢子,该菌种是用MALDI-TOF ms鉴定的,用EUCAST-E.DEF在肉汤中微量稀释进行抗真菌图测定。9.3.2)和e检验均显示对两性霉素B耐药。病人死于感染性休克和出血。结论两性霉素- b耐药黄曲霉引起的侵袭性真菌感染,如果治疗不善,可能导致患者死亡。因此,抗真菌药敏试验是最重要的给予适当的治疗。
{"title":"Lethal destructive sinusopathy due to amphotericin B-resistant Aspergillus flavus: A case report","authors":"Tiago Luiz Lagedo Ferraz ,&nbsp;Eduardo Marques Araújo ,&nbsp;Rodolfo Froes Calixto ,&nbsp;Monique Lima Martins Sampaio ,&nbsp;Luciana Rezende Bandeira de Mello ,&nbsp;Kaliny Benicio Torres ,&nbsp;Rossana de Aguiar Cordeiro ,&nbsp;Patrice Le Pape ,&nbsp;Reginaldo Gonçalves de Lima-Neto","doi":"10.1016/j.riam.2022.01.001","DOIUrl":"10.1016/j.riam.2022.01.001","url":null,"abstract":"<div><h3>Background</h3><p>The prevalence of pulmonary aspergillosis and the importance of its early diagnosis are recognized. However, non-pulmonary involvement, including the sinuses region, is not frequently reported, and an infection in this area can affect all paranasal sinuses (pansinusopathy), being a rare pathology that affects immunocompromised hosts. Recent studies have highlighted the occurrence of <span><em>Aspergillus</em><em> flavus</em></span> resistant to antifungal therapy. Therefore, a nasal sinus infection by resistant <em>Aspergillus</em> strains in immunocompromised patients may be linked to a high risk of lethality.</p></div><div><h3>Case report</h3><p>We are reporting a resistant <em>A. flavus</em> infection in an allogeneic hematopoietic stem cell transplant recipient with episodes of febrile neutropenia, and prolonged use of various antibacterial drugs and antifungal prophylaxis. The patient underwent brain magnetic resonance, which showed the presence of pansinusopathy, and presented necrosis in the left nasal region. Direct microscopic examination of a sample taken from the nasal mucosa revealed the presence of septate hyphae and conidiophores resembling those of <em>A. flavus</em><span>, that species being the identification achieved with MALDI-TOF MS. Antifungigram was performed by microdilution in broth (EUCAST-E.DEF. 9.3.2) and E-test, and resistance to amphotericin B was shown in both tests. The patient died after septic shock and hemorrhage.</span></p></div><div><h3>Conclusions</h3><p>Invasive fungal infections due to amphotericin-B resistant <em>A. flavus</em> may lead to the death of the patient due to an ineffective therapeutic management. Therefore, antifungal susceptibility testing are of utmost importance for administering the proper treatment.</p></div>","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":"39 1","pages":"Pages 21-24"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42474513","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: 3
Ventriculoperitoneal shunt infection by Cryptococcus neoformans sensu stricto: Case report and literature review 狭义新型隐球菌感染脑室腹腔分流术1例并文献复习
IF 1.9 4区 生物学 Q4 MYCOLOGY Pub Date : 2022-01-01 DOI: 10.1016/j.riam.2021.11.003
Anil Kumar , Suhas Udayakumaran , Arun Sachu , Nandita Shashindran , Poornima Baby , Ameena Thaha , Anna Kurien , Anuradha Chowdhary

Background

Cryptococcal ventriculoperitoneal shunt infection is known to occur due to an underlying infection in the patient rather than by nosocomial transmission of Cryptococcus during shunt placement. A case of chronic hydrocephalus due to cryptococcal meningitis that was misdiagnosed as tuberculous meningitis is described.

Case report

Patient details were extracted from charts and laboratory records. The identification of the isolate was confirmed by PCR-restriction fragment length polymorphism of the orotodine monophosphate pyrophosphorylase (URA5) gene. Antifungal susceptibility was determined using the CLSI M27-A3 broth microdilution method. Besides, a Medline search was performed to review all cases of Cryptococcus ventriculoperitoneal shunt infection. Cryptococcus neoformans sensu stricto (formerly Cryptococcus neoformans var. grubii), mating-type MATα was isolated from the cerebrospinal fluid and external ventricular drain tip. The isolate showed low minimum inhibitory concentrations for voriconazole (0.06 mg/l), fluconazole (8 mg/l), isavuconazole (<0.015 mg/l), posaconazole (<0.03 mg/l), amphotericin B (<0.06 mg/l) and 5-fluorocytosine (1 mg/l). The patient was treated with intravenous amphotericin B deoxycholate, but died of cardiopulmonary arrest on the fifteenth postoperative day.

Conclusions

This report underlines the need to rule out a Cryptococcus infection in those cases of chronic meningitis with hydrocephalus.

背景:隐球菌性脑室-腹膜分流器感染已知是由于患者的潜在感染而不是由于分流器放置期间隐球菌的院内传播。一例慢性脑积水由于隐球菌脑膜炎被误诊为结核性脑膜炎。病例报告:从图表和实验室记录中提取患者详细信息。采用聚合酶链反应(pcr) -羟托啶单磷酸焦磷酸化酶(URA5)基因限制性片段长度多态性对分离物进行鉴定。采用CLSI M27-A3肉汤微量稀释法测定其抗真菌敏感性。此外,我们在Medline上检索了所有隐球菌脑室腹腔分流感染的病例。从脑脊液和脑室外引流液尖端分离到严格感新隐球菌(原grubii隐球菌),交配型MATα。该分离物对伏立康唑(0.06 mg/l)、氟康唑(8 mg/l)、异戊康唑(0.015 mg/l)、泊沙康唑(0.03 mg/l)、两性霉素B (0.06 mg/l)和5-氟胞嘧啶(1 mg/l)具有较低的最低抑菌浓度。患者静脉注射两性霉素B去氧胆酸,术后第15天因心肺骤停死亡。结论本报告强调在慢性脑膜炎合并脑积水病例中需要排除隐球菌感染。
{"title":"Ventriculoperitoneal shunt infection by Cryptococcus neoformans sensu stricto: Case report and literature review","authors":"Anil Kumar ,&nbsp;Suhas Udayakumaran ,&nbsp;Arun Sachu ,&nbsp;Nandita Shashindran ,&nbsp;Poornima Baby ,&nbsp;Ameena Thaha ,&nbsp;Anna Kurien ,&nbsp;Anuradha Chowdhary","doi":"10.1016/j.riam.2021.11.003","DOIUrl":"10.1016/j.riam.2021.11.003","url":null,"abstract":"<div><h3>Background</h3><p>Cryptococcal ventriculoperitoneal shunt infection is known to occur due to an underlying infection in the patient rather than by nosocomial transmission of <span><em>Cryptococcus</em></span> during shunt placement. A case of chronic hydrocephalus due to cryptococcal meningitis that was misdiagnosed as tuberculous meningitis is described.</p></div><div><h3>Case report</h3><p>Patient details were extracted from charts and laboratory records. The identification of the isolate was confirmed by PCR-restriction fragment length polymorphism of the orotodine monophosphate pyrophosphorylase (<em>URA5</em>) gene. Antifungal susceptibility was determined using the CLSI M27-A3 broth microdilution method. Besides, a Medline search was performed to review all cases of <em>Cryptococcus</em> ventriculoperitoneal shunt infection. <span><em>Cryptococcus neoformans</em></span> sensu stricto (formerly <em>Cryptococcus neoformans</em> var. <em>grubii</em>), mating-type MATα was isolated from the cerebrospinal fluid and external ventricular drain tip. The isolate showed low minimum inhibitory concentrations for voriconazole (0.06<!--> <!-->mg/l), fluconazole (8<!--> <!-->mg/l), isavuconazole (&lt;0.015<!--> <!-->mg/l), posaconazole (&lt;0.03<!--> <!-->mg/l), amphotericin B (&lt;0.06<!--> <!-->mg/l) and 5-fluorocytosine (1<!--> <!-->mg/l). The patient was treated with intravenous amphotericin B deoxycholate, but died of cardiopulmonary arrest on the fifteenth postoperative day.</p></div><div><h3>Conclusions</h3><p>This report underlines the need to rule out a <em>Cryptococcus</em> infection in those cases of chronic meningitis with hydrocephalus.</p></div>","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":"39 1","pages":"Pages 16-20"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46966244","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: 1
Pneumocystis in dogs: A protozoan knockin’ on Fungi's door 狗的肺囊虫:敲开真菌大门的原生动物
IF 1.9 4区 生物学 Q4 MYCOLOGY Pub Date : 2021-10-01 DOI: 10.1016/j.riam.2021.04.001
Francisco Javier Cabañes
{"title":"Pneumocystis in dogs: A protozoan knockin’ on Fungi's door","authors":"Francisco Javier Cabañes","doi":"10.1016/j.riam.2021.04.001","DOIUrl":"10.1016/j.riam.2021.04.001","url":null,"abstract":"","PeriodicalId":21291,"journal":{"name":"Revista Iberoamericana De Micologia","volume":"38 4","pages":"Pages 155-156"},"PeriodicalIF":1.9,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.riam.2021.04.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38968859","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