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1.
Rev Esp Salud Publica ; 922018 May 28.
Article in Spanish | MEDLINE | ID: mdl-29806660

ABSTRACT

OBJECTIVE: Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) are widely used but they increase the risk of gastrointestinal haemorrage among other adverse effects. The objective of this study was to compare potentially inappropriate medications (PIM) by NSAIDs using the original Beers Criteria, a global reference for evaluating elderly people's prescriptions, and the Spanish adaptation of the same; and the relation between PIM of NSAIDs and gastrointestinal bleeding. METHODS: The study was a retrospective observational study carried out located in a primary care district in the province of de Murcia, south-eastern Spain. The study population (n=7.856) were citizens aged 65 and above, with at least one drug prescribed in a Spanish health district during the study period . We analized illnesses and treatments registered in the primary care's electronic medical history of patients and hospital admissions, during the 12 month study period (2012). The original Beers Criteria and their Spanish adaptation were used to evaluate PIM of NSAIDs in patients considering the medication globally and also each active substance. Gastrointestinal bleeding events recorded in the data bases studied were evaluated. RESULTS: Detection of PIM of NSAIDs was 5,6% with the original version and 7,0% (Δ=25,5%; p less than 0,001) with the adapted one. PIM of NSAIDs was related with an increased incidence of gastrointestinal bleeding without significant differences between PIM exposed and NSAID exposed patients AINE (RR=1,6; IC:0,2-14,5). CONCLUSIONS: The Spanish adaptation of the Beers criteria identified a greater degree of PIM of NSAIDs than the original version, and in both versions the detection of PIM was not related with a significant increase of gastrointestinal bleeding compared to patients exposed to NSAIDs.


OBJETIVO: Los Antiinflamatorios No Esteroideos (AINE) son un grupo de medicamentos con uso muy extendido en la población, su uso genera un mayor riesgo de hemorragia digestiva. El objetivo de este trabajo fue evaluar y comparar la prescripción potencialmente inadecuada (PPI) de AINE según los criterios de Beers en su versión original con su adaptación española y la relación de esta PPI con los eventos de sangrado gastrointestinal. METODOS: Estudio observacional longitudinal retrospectivo de 12 meses (año 2012) realizado en un área de salud de la Región de Murcia. La población estudiada fue los mayores de 65 años a los que se les había prescrito, al menos, 1 receta médica de AINE durante el periodo de estudio (7.856). Se utilizaron ambas versiones de los criterios de Beers para evaluar la PPI por AINE. Para evaluar el papel etiológico de la exposición a AINE potencialmente inadecuados, respecto a haber recibido AINE, en la hemorragia gastrointestinal se calculó la incidencia acumulada y el Riesgo Relativo. RESULTADOS: La detección de PPI por AINE pasó de 5,6% con la versión original, a 7,0% (Δ=25,5%; pmenor de 0,001) En los sujetos con prescripción de AINE la exposición a PPI por AINE presentó una mayor incidencia de sangrado gastrointestinal pero sin diferencias significativas respecto a la población que recibió AINE (RR=1,6; IC:0,2-14,5). CONCLUSIONES: El uso de la adaptación española de los criterios de Beers posibilita una mayor detección de PPI por AINE en comparación con el uso de la versión original, en ambas versiones, la PPI por AINE no genera un incremento significativo en el sangrado gastrointestinal respecto a recibir AINE.


Subject(s)
Anti-Inflammatory Agents, Non-Steroidal/adverse effects , Gastrointestinal Hemorrhage/chemically induced , Inappropriate Prescribing/adverse effects , Potentially Inappropriate Medication List , Aged , Aged, 80 and over , Female , Gastrointestinal Hemorrhage/epidemiology , Gastrointestinal Hemorrhage/prevention & control , Hospitalization , Humans , Inappropriate Prescribing/statistics & numerical data , Incidence , Longitudinal Studies , Male , Retrospective Studies , Spain/epidemiology
2.
Med Mycol ; 56(suppl_1): 42-59, 2018 Apr 01.
Article in English | MEDLINE | ID: mdl-29538733

ABSTRACT

Cystic fibrosis (CF) is the major genetic inherited disease in Caucasian populations. The respiratory tract of CF patients displays a sticky viscous mucus, which allows for the entrapment of airborne bacteria and fungal spores and provides a suitable environment for growth of microorganisms, including numerous yeast and filamentous fungal species. As a consequence, respiratory infections are the major cause of morbidity and mortality in this clinical context. Although bacteria remain the most common agents of these infections, fungal respiratory infections have emerged as an important cause of disease. Therefore, the International Society for Human and Animal Mycology (ISHAM) has launched a working group on Fungal respiratory infections in Cystic Fibrosis (Fri-CF) in October 2006, which was subsequently approved by the European Confederation of Medical Mycology (ECMM). Meetings of this working group, comprising both clinicians and mycologists involved in the follow-up of CF patients, as well as basic scientists interested in the fungal species involved, provided the opportunity to initiate collaborative works aimed to improve our knowledge on these infections to assist clinicians in patient management. The current review highlights the outcomes of some of these collaborative works in clinical surveillance, pathogenesis and treatment, giving special emphasis to standardization of culture procedures, improvement of species identification methods including the development of nonculture-based diagnostic methods, microbiome studies and identification of new biological markers, and the description of genotyping studies aiming to differentiate transient carriage and chronic colonization of the airways. The review also reports on the breakthrough in sequencing the genomes of the main Scedosporium species as basis for a better understanding of the pathogenic mechanisms of these fungi, and discusses treatment options of infections caused by multidrug resistant microorganisms, such as Scedosporium and Lomentospora species and members of the Rasamsonia argillacea species complex.


Subject(s)
Cystic Fibrosis/complications , Fungi , Mycoses/microbiology , Respiratory Tract Infections/microbiology , Antifungal Agents/therapeutic use , Drug Resistance, Multiple, Fungal , Fungi/classification , Fungi/drug effects , Fungi/genetics , Fungi/pathogenicity , Genomics , Humans , Microbiological Techniques , Mycoses/diagnosis , Mycoses/drug therapy , Mycoses/etiology , Respiratory Tract Infections/diagnosis , Respiratory Tract Infections/drug therapy , Respiratory Tract Infections/etiology , Scedosporium/genetics
3.
Aten. prim. (Barc., Ed. impr.) ; 50(2): 106-113, feb. 2018. tab, graf
Article in Spanish | IBECS | ID: ibc-172567

ABSTRACT

Objetivo: Comparar la detección de prescripción potencialmente inadecuada (PPI) con el uso de los criterios de Beers, referente global en la evaluación de la farmacoterapia del paciente aciano, en su versión original y en su adaptación española. Diseño: Estudio observacional retrospectivo. Emplazamiento: Un área de salud en la Región de Murcia. Participantes: Ciudadanos mayores de 65 años que hayan recogido, al menos, una receta médica durante el periodo de estudio (n = 7.856). Método: Análisis de la información de la historia clínica informatizada de atención primaria (enfermedades y prescripciones) durante el periodo de estudio (12 meses, año 2012). Se utilizaron los criterios de Beers en su versión original de 2012 y su adaptación española para evaluar la PPI. Se estudió la proporción de pacientes con PPI a nivel global y por cada criterio concreto, y la diferencia entre ambas versiones. Resultados: La mediana de edad de la población estudiada fue de 76años, con predominio del sexo femenino (56,6%). Respecto al uso de medicamentos, la muestra presentó una mediana de 13 principios activos y 66 recetas. Respecto a la población estudiada, el porcentaje de pacientes con PPI según la versión original de los criterios de Beers es del 44,8%, ascendiendo al 49,4% cuando se utiliza la adaptación. Conclusiones: La PPI es frecuente en nuestro entorno. La aplicación directa de los criterios de Beers en su versión original, sin tener en cuenta la idiosincrasia del mercado farmacéutico local, proporciona una infraestimación del volumen de PPI en el paciente mayor de 65 años (AU)


Objective: To compare the detection of potentially inappropriate medication (PIM) using the original Beers criteria, a global reference for evaluating prescriptions in the elderly, and their Spanish version. Design: Retrospective observational study Location: A Primary Care area in the province of Murcia, Spain. Participants: A total of 7,856 subjects aged 65 and over, with at least one drug prescribed in a Primary Care Area of Spain during study period. Method: Illnesses and treatments registered in the Primary Care computerised medical history of patients were analysed during a 12 month study period (2012). The original Beers criteria and their Spanish adaptation were used to evaluate PIM, considering both sets of criteria overall, and individually. Results: The median age of the patients was 76.0 years, with the majority females (56.6%). Patients received a median of 13 active substances and 66 medical prescriptions. The percentage of patients prescribed PIM ranged from 44.8% according to the original Beers criteria to 49.4% with the Spanish adaptation. Conclusions: PIMs are frequent in our context. The original Beers criteria, if not adapted to the local drug catalogue, underestimated the frequency of PIM in the elderly population studied (AU)


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Aged, 80 and over , Inappropriate Prescribing/adverse effects , Potentially Inappropriate Medication List/statistics & numerical data , Potentially Inappropriate Medication List , Drug Therapy/standards , Pharmacoepidemiology/standards , Retrospective Studies , Longitudinal Studies , Basic Health Services , Inappropriate Prescribing/prevention & control , Spain/epidemiology
4.
Aten Primaria ; 50(2): 106-113, 2018 Feb.
Article in Spanish | MEDLINE | ID: mdl-28506569

ABSTRACT

OBJECTIVE: To compare the detection of potentially inappropriate medication (PIM) using the original Beers criteria, a global reference for evaluating prescriptions in the elderly, and their Spanish version. DESIGN: Retrospective observational study LOCATION: A Primary Care area in the province of Murcia, Spain. PARTICIPANTS: A total of 7,856 subjects aged 65 and over, with at least one drug prescribed in a Primary Care Area of Spain during study period. METHOD: Illnesses and treatments registered in the Primary Care computerised medical history of patients were analysed during a 12month study period (2012). The original Beers criteria and their Spanish adaptation were used to evaluate PIM, considering both sets of criteria overall, and individually. RESULTS: The median age of the patients was 76.0years, with the majority females (56.6%). Patients received a median of 13 active substances and 66 medical prescriptions. The percentage of patients prescribed PIM ranged from 44.8% according to the original Beers criteria to 49.4% with the Spanish adaptation. CONCLUSIONS: PIMs are frequent in our context. The original Beers criteria, if not adapted to the local drug catalogue, underestimated the frequency of PIM in the elderly population studied.


Subject(s)
Inappropriate Prescribing/statistics & numerical data , Potentially Inappropriate Medication List/statistics & numerical data , Aged , Female , Humans , Male , Retrospective Studies , Spain
5.
Rev. esp. salud pública ; 92: 0-0, 2018. tab
Article in Spanish | IBECS | ID: ibc-177579

ABSTRACT

Fundamentos: Los Antiinflamatorios No Esteroideos (AINE) son un grupo de medicamentos con uso muy extendido en la población, su uso genera un mayor riesgo de hemorragia digestiva. El objetivo de este trabajo fue evaluar y comparar la prescripción potencialmente inadecuada (PPI) de AINE según los criterios de Beers en su versión original con su adaptación española y la relación de esta PPI con los eventos de sangrado gastrointestinal. Métodos: Estudio observacional longitudinal retrospectivo de 12 meses (año 2012) realizado en un área de salud de la Región de Murcia. La población estudiada fue los mayores de 65 años a los que se les había prescrito, al menos, 1 receta médica de AINE durante el periodo de estudio (7.856). Se utilizaron ambas versiones de los criterios de Beers para evaluar la PPI por AINE. Para evaluar el papel etiológico de la exposición a AINE potencialmente inadecuados, respecto a haber recibido AINE, en la hemorragia gastrointestinal se calculó la incidencia acumulada y el Riesgo Relativo. Resultados: La detección de PPI por AINE pasó de 5,6% con la versión original, a 7,0% (DELTA=25,5%; p<0,001) En los sujetos con prescripción de AINE la exposición a PPI por AINE presentó una mayor incidencia de sangrado gastrointestinal pero sin diferencias significativas respecto a la población que recibió AINE (RR=1,6; IC:0,2-14,5). Conclusiones: El uso de la adaptación española de los criterios de Beers posibilita una mayor detección de PPI por AINE en comparación con el uso de la versión original, en ambas versiones, la PPI por AINE no genera un incremento significativo en el sangrado gastrointestinal respecto a recibir AINE


Background: Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) are widely used but they increase the risk of gastrointestinal haemorrage among other adverse effects. The objective of this study was to compare potentially inappropriate medications (PIM) by NSAIDs using the original Beers Criteria, a global reference for evaluating elderly people's prescriptions, and the Spanish adaptation of the same; and the relation between PIM of NSAIDs and gastrointestinal bleeding. Methods: The study was a retrospective observational study carried out located in a primary care district in the province of de Murcia, south-eastern Spain. The study population (n=7.856) were citizens aged 65 and above, with at least one drug prescribed in a Spanish health district during the study period . We analized illnesses and treatments registered in the primary care's electronic medical history of patients and hospital admissions, during the 12 month study period (2012). The original Beers Criteria and their Spanish adaptation were used to evaluate PIM of NSAIDs in patients considering the medication globally and also each active substance. Gastrointestinal bleeding events recorded in the data bases studied were evaluated. Results: Detection of PIM of NSAIDs was 5,6% with the original version and 7,0% (DELTA=25,5%; p<0,001) with the adapted one. PIM of NSAIDs was related with an increased incidence of gastrointestinal bleeding without significant differences between PIM exposed and NSAID exposed patients AINE (RR=1,6; IC:0,2-14,5). Conclusions: The Spanish adaptation of the Beers criteria identified a greater degree of PIM of NSAIDs than the original version, and in both versions the detection of PIM was not related with a significant increase of gastrointestinal bleeding compared to patients exposed to NSAIDs


Subject(s)
Humans , Male , Female , Aged , Aged, 80 and over , Gastrointestinal Hemorrhage/chemically induced , Anti-Inflammatory Agents, Non-Steroidal/adverse effects , Polypharmacy , Inappropriate Prescribing/statistics & numerical data , Retrospective Studies , Risk Factors , Primary Health Care/statistics & numerical data , Pharmacoepidemiology/trends
8.
Mycoses ; 57 Suppl 3: 79-84, 2014 Dec.
Article in English | MEDLINE | ID: mdl-25175081

ABSTRACT

We present a single-centre, retrospective study (1985-2012) of 22 cases of mucormycosis in children. A total of 158 mucormycosis cases were identified, of which 22 (13.96%) were children. The mean age of the children was 10.3 years (range: 6 months-18 years), and 59% of the infections occurred in males. The rhinocerebral form was the main clinical presentation (77.27%), followed by the primary cutaneous and pulmonary patterns. The major underlying predisposing factors were diabetes mellitus in 68.18% of the patients and haematologic diseases in 27.7% of the patients. The cases were diagnosed by mycological tests, with positive cultures in 95.4% of the patients. Rhizopus arrhizus was the foremost aetiologic agent in 13/22 cases (59.1%). In 21 cultures, the aetiologic agents were identified morphologically and by molecular identification. In 10 cultures, the internal transcribed spacer region of the ribosomal DNA was sequenced. Clinical cure and mycological cure were achieved in 27.3% cases, which were managed with amphotericin B deoxycholate and by treatment of the underlying conditions.


Subject(s)
Mucormycosis/drug therapy , Adolescent , Amphotericin B/therapeutic use , Antifungal Agents/therapeutic use , Child , Child, Preschool , DNA, Fungal/genetics , Deoxycholic Acid/therapeutic use , Drug Combinations , Female , Humans , Infant , Male , Mexico , Mucormycosis/microbiology , Retrospective Studies , Rhizopus/isolation & purification , Rhizopus/pathogenicity , Sequence Analysis, DNA
9.
Rev. iberoam. micol ; 31(3): 197-202, jul.-sept. 2014.
Article in Spanish | IBECS | ID: ibc-127631

ABSTRACT

La feohifomicosis cerebral es una micosis invasiva infrecuente, de mal pronóstico, sin tratamiento estandarizado y con muy pocos casos referenciados en la literatura. Entre los hongos responsables de la feohifomicosis se encuentra Cladophialophora bantiana, un hongo con especial tropismo por el sistema nervioso central. Se presenta un caso de absceso cerebral por C. bantiana en un adulto con enfermedad de Crohn y tratado con inmunosupresores. A pesar de la identificación del agente etiológico y del tratamiento quirúrgico y farmacológico administrado, el paciente evoluciona desfavorablemente y fallece 32 días después de la cirugía. La descripción del caso clínico se acompaña de una revisión de los episodios de feohifomicosis cerebral por C. bantiana publicados en los últimos 10 años. Los avances diagnósticos, incluyendo las nuevas técnicas de imagen, y el empleo de los nuevos antifúngicos no han mejorado el mal pronóstico de la feohifomicosis cerebral por C. bantiana, siendo aconsejable la combinación de tratamiento quirúrgico y farmacológico, aunque ninguna pauta terapéutica descrita en la literatura destaca por el éxito obtenido (AU)


Cerebral phaeohyphomycosis is a rare invasive fungal infection with very few cases referenced in the literature. There is no standardized treatment, and it is associated with poor outcomes. Cladophialophora bantiana, a fungus with special tropism for the central nervous system, is one of the causal agents of phaeohyphomycosis. The case presented here deals with a brain abscess by C. bantiana in an adult with Crohn's disease had beed being treated with immunosuppressive drugs. Despite the correct etiological diagnosis, surgical and pharmacological treatments, the patient died 32 days after surgery. A description of the case is followed by a review of all cerebral C. bantiana phaeohyphomycosis cases published in the last 10 years. Regardless of the use of advanced new imaging techniques in the diagnosis and treatment with new antifungal agents, cerebral phaeohyphomycosis by C. bantiana continues to have very poor prognosis. While new more successful therapeutic treatments appear, a combined surgical and pharmacological approach seems to be more appropriate for this severe mycosis (AU)


Subject(s)
Humans , Male , Aged, 80 and over , Cerebral Phaeohyphomycosis/diagnosis , Cerebral Phaeohyphomycosis/drug therapy , Cerebral Phaeohyphomycosis/microbiology , Antifungal Agents/therapeutic use , Colony Count, Microbial/methods , Amphotericin B/therapeutic use , Prognosis , Brain Abscess/complications , Brain Abscess/microbiology , Central Nervous System/microbiology , Central Nervous System/pathology
10.
Med Mycol ; 52(7): 748-57, 2014 Oct.
Article in English | MEDLINE | ID: mdl-25129851

ABSTRACT

The fungal genus Pithomyces comprises numerous dematiaceous saprobic species commonly found on dead leaves and stems of a great variety of plants. Occasionally, they have been recovered from clinical specimens. We morphologically and molecularly (rDNA sequences) investigated a set of 42 isolates tentatively identified as Pithomyces recovered from clinical specimens in the United States. The predominant species were P. chartarum and P. sacchari (33.3% each), followed by Pithomyces sp. I (28.6%) and P. maydicus (4.8%). Most of the isolates were obtained from samples of superficial tissue (50%), the respiratory tract (21.4%), and the nasal region (19%). In general, these fungi were highly susceptible in vitro to the eight antifungal agents tested.


Subject(s)
Antifungal Agents/pharmacology , Ascomycota/classification , Ascomycota/drug effects , Mycoses/microbiology , Ascomycota/cytology , Ascomycota/isolation & purification , Cluster Analysis , DNA, Fungal/chemistry , DNA, Fungal/genetics , DNA, Ribosomal/chemistry , DNA, Ribosomal/genetics , Humans , Microbial Sensitivity Tests , Microscopy , Molecular Sequence Data , Nasal Cavity/microbiology , Phylogeny , Respiratory System/microbiology , Sequence Analysis, DNA , Sequence Homology , Skin/microbiology , United States
11.
Mycologia ; 106(2): 328-38, 2014.
Article in English | MEDLINE | ID: mdl-24782500

ABSTRACT

Acremonium is one of the largest and most complex genera of hyphomycetes. Its taxonomy is not yet resolved and the phylogenetic value of the most distinctive morphological features is unknown. The species of this genus produce conidia in chains or form slimy heads or both. We have studied a set of clinical and environmental Acremonium strains morphologically characterized by producing mostly catenate, elongate, more or less fusiform conidia. Based on phenotypic data and in the analysis of the sequences of the ITS region, the D1/D2 domains of the 28S rRNA gene and a fragment of the ß-tubulin gene, three new species morphologically similar to Acremonium fusidioides and belonging to the family Bionectriaceae (Hypocreales) are described and illustrated; they are Acremonium pilosum, Acremonium parvum and Acremonium citrinum. The first species produces two kinds of conidia: clavate with smooth walls and globose with abundant filiform projections. Acremonium parvum is characterized by slow growth and pyriform or slightly lanceolate conidia with an elongate and truncate base. Acremonium citrinum produces a diffusible yellow pigment and obovoid conidia.


Subject(s)
Acremonium/classification , Phylogeny , Acremonium/genetics , Acremonium/growth & development , Acremonium/isolation & purification , DNA, Fungal/genetics , DNA, Ribosomal Spacer/genetics , Environmental Microbiology , Humans , Molecular Sequence Data , Mycoses/microbiology , Spores, Fungal/classification , Spores, Fungal/genetics , Spores, Fungal/growth & development , Spores, Fungal/isolation & purification
12.
Rev Iberoam Micol ; 31(3): 197-202, 2014.
Article in Spanish | MEDLINE | ID: mdl-23402829

ABSTRACT

Cerebral phaeohyphomycosis is a rare invasive fungal infection with very few cases referenced in the literature. There is no standardized treatment, and it is associated with poor outcomes. Cladophialophora bantiana, a fungus with special tropism for the central nervous system, is one of the causal agents of phaeohyphomycosis. The case presented here deals with a brain abscess by C. bantiana in an adult with Crohn's disease had beed being treated with immunosuppressive drugs. Despite the correct etiological diagnosis, surgical and pharmacological treatments, the patient died 32 days after surgery. A description of the case is followed by a review of all cerebral C. bantiana phaeohyphomycosis cases published in the last 10 years. Regardless of the use of advanced new imaging techniques in the diagnosis and treatment with new antifungal agents, cerebral phaeohyphomycosis by C. bantiana continues to have very poor prognosis. While new more successful therapeutic treatments appear, a combined surgical and pharmacological approach seems to be more appropriate for this severe mycosis.


Subject(s)
Brain Abscess/microbiology , Cerebral Phaeohyphomycosis , Aged , Brain Abscess/diagnosis , Cerebral Phaeohyphomycosis/diagnosis , Fatal Outcome , Humans , Male
13.
Antonie Van Leeuwenhoek ; 104(2): 243-52, 2013 Aug.
Article in English | MEDLINE | ID: mdl-23748934

ABSTRACT

A new species of Coniochaeta from endotracheal secretion of a preterm neonate, Coniochaeta polymorpha, is described. This anamorphic species is characterized by development of dark brown colonies after 1 week of incubation on culture medium, formation of abundant yeast-like cells and sclerotium-like structures producing discrete, brown, nearly globose phialidic conidiogenous cells and absence of chlamydospores. A combined sequence dataset of the ITS region, partial LSU rDNA, actin and ß-tubulin genes sufficiently resolved the unique phylogenetic status of this species. In response to recent changes in the nomenclature for pleomorphic fungi, we transfer the Lecythophora species to Coniochaeta, and propose the following new combinations: Coniochaeta canina, Coniochaeta cateniformis, Coniochaeta decumbens, Coniochaeta fasciculata, Coniochaeta hoffmannii, Coniochaeta lignicola, Coniochaeta luteorubra, Coniochaeta luteoviridis and Coniochaeta mutabilis.


Subject(s)
Ascomycota/classification , Ascomycota/isolation & purification , Infant, Premature, Diseases/microbiology , Mycoses/microbiology , Trachea/microbiology , Animals , Antifungal Agents/pharmacology , Ascomycota/drug effects , Ascomycota/genetics , DNA, Fungal/genetics , DNA, Ribosomal/genetics , Female , Humans , Infant, Newborn , Infant, Premature , Intubation, Intratracheal , Male , Mice , Mice, Inbred BALB C , Microbial Sensitivity Tests , Mycological Typing Techniques , Phylogeny , Sequence Analysis, DNA , Spores, Fungal
14.
Diagn Microbiol Infect Dis ; 76(2): 168-74, 2013 Jun.
Article in English | MEDLINE | ID: mdl-23558007

ABSTRACT

The in vitro antifungal susceptibility of a set of 99 clinical isolates of Curvularia was tested against 9 drugs using a reference microdilution method. The isolates had been identified previously to species level by comparing their ITS rDNA and glyceraldehyde-3-phosphate dehydrogenase gene sequences with those of reference strains. We were able to reliably identify 73.2% of the isolates, the most frequent species being Curvularia aeria, Curvularia geniculata/Curvularia senegalensis, Curvularia lunata, Curvularia inaequalis, Curvularia verruculosa, and Curvularia borreriae. Most of these isolates had been recovered from nasal sinus, which is generally considered one of the most frequent sites of infection by these fungi. In addition, at least 3 phylogenetic species that have not yet been formally described were detected. The most active drugs were the echinocandins, amphotericin B, and posaconazole, whereas voriconazole and itraconazole showed poor activity.


Subject(s)
Antifungal Agents/pharmacology , Ascomycota/classification , Ascomycota/drug effects , Drug Resistance, Multiple, Fungal , Amphotericin B/pharmacology , Ascomycota/isolation & purification , Echinocandins/pharmacology , Humans , Itraconazole/pharmacology , Microbial Sensitivity Tests , Phylogeny , Pyrimidines/pharmacology , Triazoles/pharmacology , Voriconazole
15.
Antimicrob Agents Chemother ; 57(4): 1944-7, 2013 Apr.
Article in English | MEDLINE | ID: mdl-23335742

ABSTRACT

The in vitro antifungal susceptibility of 77 isolates belonging to different clinically relevant species of Aspergillus section Flavi, including those of different phylogenetic clades of A. flavus, was tested for nine antifungal agents using a microdilution reference method (CLSI, M38-A2). Terbinafine and the echinocandins demonstrated lower MICs/MECs for all species evaluated, followed by posaconazole. Amphotericin B showed MICs ≥ 2 µg/ml for 38 (49.4%) of the 77 isolates tested.


Subject(s)
Antifungal Agents/pharmacology , Aspergillus/drug effects , Amphotericin B/pharmacology , Echinocandins/pharmacology , Microbial Sensitivity Tests , Naphthalenes/pharmacology , Phylogeny , Terbinafine , Triazoles/pharmacology
16.
Mycopathologia ; 175(1-2): 115-21, 2013 Feb.
Article in English | MEDLINE | ID: mdl-23073823

ABSTRACT

We report the presence of the two arthroconidial anamorphic fungi, Scytalidium cuboideum and Arthropsis hispanica, in clinical samples from the USA. Both fungi were morphologically and molecularly identified. The antifungal susceptibility of four isolates of A. hispanica and five of S. cuboideum to eight antifungal drugs is provided.


Subject(s)
Ascomycota/isolation & purification , Mycoses/diagnosis , Mycoses/microbiology , Antifungal Agents/pharmacology , Ascomycota/classification , Ascomycota/cytology , Ascomycota/drug effects , DNA, Fungal/chemistry , DNA, Fungal/genetics , DNA, Ribosomal/chemistry , DNA, Ribosomal/genetics , DNA, Ribosomal Spacer/chemistry , DNA, Ribosomal Spacer/genetics , Genes, rRNA , Humans , Microbial Sensitivity Tests , Molecular Sequence Data , RNA, Fungal/genetics , RNA, Ribosomal/genetics , Sequence Analysis, DNA , United States
17.
Mycologia ; 105(2): 398-421, 2013.
Article in English | MEDLINE | ID: mdl-23099515

ABSTRACT

In molecular studies involving numerous clinical isolates of the genera Acremonium, Phialemonium and Lecytophora some of them could not be identified. To clarify the phylogenetic relationships among these fungi and other related taxa, we performed a polyphasic study based on a detailed morphological study and on the analysis of sequences of four loci: the internal transcribed spacer regions, the D1/D2 domains of the 28S rRNA, actin and ß-tubulin genes. The combination of the resulting data let us propose the new genus Phialemoniopsis to accommodate the opportunistic fungi Phialemonium curvatum and Sarcopodium oculorum and two new species, Phialemoniopsis cornearis and Phialemoniopsis pluriloculosa. The taxonomy of Phialemoniopsis has not been completely resolved, however, remaining incertae sedis within the Sordariomycetes. In addition, the new species Lecythophora luteorubra, Lecythophora cateniformis and Phialemonium globosum are described and the species Acremonium atrogriseum and Taifanglania inflata are transferred to the genus Phialemonium. Lecythophora and Phialemonium are currently monophyletic genera of the families Coniochaetaceae (Coniochaetales) and Cephalothecaceae (Sordariales) respectively, according to our results. Tables summarizing key morphological features to distinguish the current species of Lecythophora, Phialemonium and Phialemoniopsis are provided.


Subject(s)
Ascomycota/classification , Ascomycota/ultrastructure , Actins/genetics , Ascomycota/genetics , Ascomycota/isolation & purification , Base Sequence , DNA, Fungal/chemistry , DNA, Fungal/genetics , DNA, Ribosomal/chemistry , DNA, Ribosomal/genetics , DNA, Ribosomal Spacer/chemistry , DNA, Ribosomal Spacer/genetics , Humans , Molecular Sequence Data , Multilocus Sequence Typing , Mycelium , Mycological Typing Techniques , Phylogeny , RNA, Ribosomal, 28S/genetics , Sequence Analysis, DNA , Spores, Fungal/ultrastructure , Texas , Tubulin/genetics
18.
Mycologia ; 105(1): 151-61, 2013.
Article in English | MEDLINE | ID: mdl-22893638

ABSTRACT

Purpureocillium is a genus recently proposed to accommodate Paecilomyces lilacinus, a well studied species that has biotechnological properties and an ability to cause human infections. Since contradictory data have been reported on the intraspecific genetic variability of P. lilacinum, we have carried out a polyphasic study of a set of clinical and environmental isolates of this species. Detailed morphological examination and sequence analysis of four different loci, including the ribosomal internal transcribed spacer, the domains D1 and D2 of the 28S rDNA, EF-1a and the largest subunit of RNA polymerase II (rpb1), showed that P. lilacinum formed a well supported phylogenetic clade with low intraspecific variability. The new species Purpureocillium lavendulum, which has vinaceous colonies similar to those of P. lilacinum, is proposed. It is characterized by the lack of growth at 35 C, the production of a yellow diffusible pigment and by subglobose or limoniform conidia.


Subject(s)
Environmental Microbiology , Hypocreales/classification , Hypocreales/isolation & purification , Mycoses/microbiology , DNA, Fungal/genetics , DNA, Ribosomal/genetics , Humans , Hypocreales/genetics , Hypocreales/growth & development , Molecular Sequence Data , Phylogeny , Spores, Fungal/classification , Spores, Fungal/genetics , Spores, Fungal/growth & development , Spores, Fungal/isolation & purification
19.
Fungal Biol ; 116(11): 1146-55, 2012 Nov.
Article in English | MEDLINE | ID: mdl-23153805

ABSTRACT

Aspergillus flavus is the second most common cause of aspergillosis infection in immunocompromised patients and is responsible for the production of aflatoxins. Little is known about the population structure of A. flavus, although recent molecular and phenotypic data seem to demonstrate that different genetic lineages exist within this species. The aim of this study was to carry out a morphological, physiological, and molecular analysis of a set of clinical and environmental isolates to determine whether this variability is due to species divergence or intraspecific diversity, and to assess whether the clinical isolates form a separate group. The amdS and omtA genes were more phylogenetically informative than the other tested genes and their combined analysis inferred three main clades, with no clear distinction between clinical and environmental isolates. No important morphological and physiological differences were found between the members of the different clades, with the exception of the assimilation of d-glucosamine, which differentiates the members of the clade II from the others.


Subject(s)
Aspergillosis/microbiology , Aspergillus flavus/genetics , Amidohydrolases/chemistry , Amidohydrolases/genetics , Aspergillus flavus/classification , Aspergillus flavus/metabolism , Aspergillus flavus/ultrastructure , Base Sequence , DNA, Fungal/chemistry , DNA, Fungal/genetics , Fungal Proteins/chemistry , Fungal Proteins/genetics , Genetic Variation , Methyltransferases/chemistry , Methyltransferases/genetics , Microscopy, Electron, Scanning , Molecular Sequence Data , Phylogeny , Polymerase Chain Reaction , Sequence Alignment , Soil Microbiology
20.
Mycologia ; 104(6): 1456-65, 2012.
Article in English | MEDLINE | ID: mdl-22684288

ABSTRACT

In a survey on the diversity of microfungi in Spanish soils, two new species of Acremonium were found. Both species were characterized as having more or less erect, mostly branched conidiophores bearing whorls of acicular phialides. In addition, one of these species, Acremonium asperulatum, produced abundant chlamydospores and globose rough-walled conidia. The other species, Acremonium variecolor, produced a brownish diffusible pigment and smooth-walled, subglobose conidia with apiculate base; sessile conidia inserted directly on vegetative hyphae also were present. The analysis of the sequences of the ITS region, the D1/D2 domains of the 28S rRNA gene and a fragment of the actin gene revealed relationships of both species with members of the Bionectriaceae (Hypocreales). Genetic differences were observed with morphologically similar species.


Subject(s)
Acremonium/classification , Phylogeny , Soil Microbiology , Spores, Fungal/cytology , Acremonium/cytology , Acremonium/genetics , Acremonium/isolation & purification , Base Sequence , DNA, Fungal/genetics , DNA, Ribosomal Spacer/genetics , Molecular Sequence Data , Phenotype , RNA, Ribosomal/chemistry , RNA, Ribosomal/genetics , Sequence Analysis, DNA , Spain , Spores, Fungal/classification , Spores, Fungal/isolation & purification
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