Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 144
Filtrar
2.
Fungal Biol ; 125(7): 560-575, 2021 07.
Artículo en Inglés | MEDLINE | ID: mdl-34140152

RESUMEN

The increased availability and production of lignocellulosic agroindustrial wastes has originated proposals for their use as raw material to obtain biofuels (ethanol and biodiesel) or derived products. However, for biomass generated from lignocellulosic residues to be successfully degraded, in most cases it requires a physical (thermal), chemical, or enzymatic pretreatment before the application of microbial or enzymatic fermentation technologies (biocatalysis). In the context of enzymatic technologies, fungi have demonstrated to produce enzymes capable of degrading polysaccharides like cellulose, hemicelluloses and pectin. Because of this ability for degrading lignocellulosic material, researchers are making efforts to isolate and identify fungal enzymes that could have a better activity for the degradation of plant cell walls and agroindustrial biomass. We performed an in silico analysis of alpha-glucoronidase in 82 accessions of the genus Aspergillus. The constructed dendrograms of amino acid sequences defined the formation of 6 groups (I, II, III, IV, V, and VI), which demonstrates the high diversity of the enzyme. Despite this ample divergence between enzyme groups, our 3D structure modeling showed both conservation and differences in amino acid residues participating in enzyme-substrate binding, which indicates the possibility that some enzymes are functionally specialized for the specific degradation of a substrate depending on the genetics of each species in the genus and the condition of the habitat where they evolved. The identification of alpha-glucuronidase isoenzymes would allow future use of genetic engineering and biocatalysis technologies aimed at specific production of the enzyme for its use in biotransformation.


Asunto(s)
Aspergillus , Glicósido Hidrolasas , Aspergillus/clasificación , Aspergillus/enzimología , Aspergillus/genética , Fermentación , Proteínas Fúngicas/genética , Proteínas Fúngicas/metabolismo , Glicósido Hidrolasas/genética , Lignina/metabolismo , Filogenia , Unión Proteica
3.
Pediatr Cardiol ; 42(5): 1180-1189, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33876263

RESUMEN

It is unclear whether residual anterograde pulmonary blood flow (APBF) at the time of Fontan is beneficial. Pulsatile pulmonary flow may be important in maintaining a compliant and healthy vascular circuit. We, therefore, wished to ascertain whether there was hemodynamic evidence that residual pulsatile flow at time of Fontan promotes clinical benefit. 106 consecutive children with Fontan completion (1999-2018) were included. Pulmonary artery pulsatility index (PI, (systolic pressure-diastolic pressure)/mean pressure)) was calculated from preoperative cardiac catheterization. Spectral analysis charted PI as a continuum against clinical outcome. The population was subsequently divided into three pulsatility subgroups to facilitate further comparison. Median PI prior to Fontan was 0.236 (range 0-1). 39 had APBF, in whom PI was significantly greater (median: 0.364 vs. 0.177, Mann-Whitney p < 0.0001). There were four early hospital deaths (3.77%), and PI in these patients ranged from 0.214 to 0.423. There was no correlation between PI and standard cardiac surgical outcomes or systemic oxygen saturation at discharge. Median follow-up time was 4.33 years (range 0.0273-19.6), with no late deaths. Increased pulsatility was associated with higher oxygen saturations in the long term, but there was no difference in reported exercise tolerance (Ross), ventricular function, or atrioventricular valve regurgitation at follow-up. PI in those with Fontan-associated complications or the requiring pulmonary vasodilators aligned with the overall population median. Maintenance of pulmonary flow pulsatility did not alter short-term outcomes or long-term prognosis following Fontan although it tended to increase postoperative oxygen saturations, which may be beneficial in later life.


Asunto(s)
Procedimiento de Fontan/métodos , Circulación Pulmonar/fisiología , Corazón Univentricular/cirugía , Adolescente , Niño , Preescolar , Femenino , Cardiopatías Congénitas/cirugía , Hemodinámica/fisiología , Humanos , Lactante , Masculino , Estudios Retrospectivos , Factores de Tiempo , Resultado del Tratamiento , Adulto Joven
4.
Artículo en Inglés | MEDLINE | ID: mdl-35419488

RESUMEN

Background: Substance use during pregnancy and early parenting years is a well-known global public health problem, but the literature comparing treatment programs for this subpopulation across countries is limited. This article both describes three women-centered treatment programs in the United States, Brazil, and Argentina and examines similarities and differences among the programs in terms of patient characteristics. Such an analysis can better inform clinicians in the assessment and treatment of women who use substances and improve the universal understanding about them. Methods: A secondary data analysis of patient characteristics (e.g., pregnant at treatment admission) and patient history (e.g., substance dependence diagnosis, family history of substance use, co-occurring mental health issues) of reproductive age women (N=356) from substance use treatment programs in the United States, Brazil, and Argentina. Results: The Horizons program admitted the highest percentage of pregnant women (60%), Lua Nova (36%), and Casa Santa Clara (17%). Horizons patients (82%) were more likely to have a substance dependence diagnosis than Lua Nova (15%) or Casa Santa Clara patients (13%). Horizons patients (78%) were more likely to have a family history of substance use than Lua Nova (15%) or Casa Santa Clara (57%) patients. Horizons was also more likely than Lua Nova or Casa Santa Clara to have patients who had entered mental health treatment (70% vs. 19% vs. 9%, respectively). Conclusion: Substance use problems that continue during pregnancy and parenting are common within different cultures and societies. These analyses identified similarities and differences in patient characteristics, history, and treatment programs. Cross-cultural comparisons of treatment approaches provide opportunities for clinicians to explore new ways of caring for this population.

5.
Dev Cell ; 56(3): 260-276.e7, 2021 02 08.
Artículo en Inglés | MEDLINE | ID: mdl-33308480

RESUMEN

Lysosomes promote cellular homeostasis through macromolecular hydrolysis within their lumen and metabolic signaling by the mTORC1 kinase on their limiting membranes. Both hydrolytic and signaling functions require precise regulation of lysosomal cholesterol content. In Niemann-Pick type C (NPC), loss of the cholesterol exporter, NPC1, causes cholesterol accumulation within lysosomes, leading to mTORC1 hyperactivation, disrupted mitochondrial function, and neurodegeneration. The compositional and functional alterations in NPC lysosomes and nature of aberrant cholesterol-mTORC1 signaling contribution to organelle pathogenesis are not understood. Through proteomic profiling of NPC lysosomes, we find pronounced proteolytic impairment compounded with hydrolase depletion, enhanced membrane damage, and defective mitophagy. Genetic and pharmacologic mTORC1 inhibition restores lysosomal proteolysis without correcting cholesterol storage, implicating aberrant mTORC1 as a pathogenic driver downstream of cholesterol accumulation. Consistently, mTORC1 inhibition ameliorates mitochondrial dysfunction in a neuronal model of NPC. Thus, cholesterol-mTORC1 signaling controls organelle homeostasis and is a targetable pathway in NPC.


Asunto(s)
Colesterol/metabolismo , Homeostasis , Péptidos y Proteínas de Señalización Intracelular/metabolismo , Diana Mecanicista del Complejo 1 de la Rapamicina/metabolismo , Enfermedad de Niemann-Pick Tipo C/metabolismo , Orgánulos/metabolismo , Transducción de Señal , Adulto , Animales , Células Cultivadas , Células HEK293 , Humanos , Células Madre Pluripotentes Inducidas/metabolismo , Membranas Intracelulares/metabolismo , Lisosomas/metabolismo , Ratones , Mitocondrias/metabolismo , Modelos Biológicos , Neuronas/metabolismo , Proteína Niemann-Pick C1 , Proteolisis
6.
Heredity (Edinb) ; 124(3): 397-409, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31863032

RESUMEN

The wheat leaf rust fungus, Puccinia triticina, is found in the major wheat growing regions of the world and is a leading cause of yield loss in wheat. Populations of P. triticina are highly variable for virulence to resistance genes in wheat and adapt quickly to resistance genes in wheat cultivars. The objectives of this study were to determine the genetic relatedness of worldwide collections of P. triticina using restriction site associated genotyping by sequencing. A total of 558 isolates of P. triticina from wheat producing regions in North America, South America, Europe, the Middle East, Ethiopia, Russia, Pakistan, Central Asia, China, New Zealand, and South Africa were characterized at 6745 single nucleotide loci. Isolates were also tested for virulence to 20 near-isogenic lines that differ for leaf rust resistance genes. Populations that were geographically proximal were also more closely related for genotypes. In addition, groups of isolates within regions that varied for genotype were similar to groups from other regions, which indicated past and recent migration across regions. Isolates from tetraploid durum wheat in five different regions were highly related with distinct genotypes compared to isolates from hexaploid common wheat. Based on a molecular clock, isolates from durum wheat found only in Ethiopia were the first to diverge from a common ancestor form of P. triticina that is found on the wild wheat relative Aegilops speltoides, followed by the divergence of isolates found worldwide that are virulent to durum wheat, and then by isolates found on common wheat.


Asunto(s)
Enfermedades de las Plantas , Puccinia , Asia , China , Etiopía , Europa (Continente) , Genotipo , Medio Oriente , Nueva Zelanda , América del Norte , Pakistán , Enfermedades de las Plantas/microbiología , Puccinia/genética , Federación de Rusia , Sudáfrica , América del Sur
7.
Phytopathology ; 109(8): 1453-1463, 2019 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-30932734

RESUMEN

Many plant pathogenic fungi have a global distribution across diverse ecological zones and agricultural production systems. Puccinia triticina, the wheat leaf rust fungus, is a major pathogen in many wheat production areas of the world. The objective of this research was to determine the genetic relatedness of P. triticina in different worldwide regions. A total of 831 single-uredinial isolates collected from 11 regions were characterized for multilocus genotype at 23 simple sequence repeat loci and for virulence to 20 lines of wheat with single genes for leaf rust resistance. A total of 424 multilocus genotypes and 497 virulence phenotypes were found. All populations had high heterozygosity and significant correlation between virulence and molecular variation, which indicated clonal reproduction. The populations from North America and South America, Central Asia and Russia, and the Middle East and Europe were closely related for multilocus genotypes and many individual isolates from other continental regions were closely related. Twenty-seven multilocus genotypes were found in more than one continental region, and 13 of these had isolates with identical virulence phenotypes. The wide geographic distribution of identical and highly related multilocus genotypes of P. triticina indicated past and more recent migration events facilitated by the spread of clonally produced urediniospores.


Asunto(s)
Enfermedades de las Plantas , Triticum , Asia Central , Europa (Continente) , Genotipo , Medio Oriente , América del Norte , Enfermedades de las Plantas/microbiología , Federación de Rusia , América del Sur , Triticum/microbiología
8.
Cardiol Young ; 29(2): 225-227, 2019 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-30482258

RESUMEN

The Fontan operation is a palliative surgical procedure for patients whose hearts cannot support a biventricular circulation. The haemodynamic changes that occur in pregnancy are particularly challenging for Fontan patients and the outcomes are variable. We present a case where fetal outcome was particularly poor despite a lack of high risk features pre-pregnancy.


Asunto(s)
Procedimiento de Fontan/métodos , Cardiopatías Congénitas/cirugía , Complicaciones Cardiovasculares del Embarazo , Adulto , Ecocardiografía , Femenino , Cardiopatías Congénitas/diagnóstico , Humanos , Imagen por Resonancia Cinemagnética , Embarazo , Resultado del Embarazo
9.
Persoonia ; 40: 240-393, 2018 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30505003

RESUMEN

Novel species of fungi described in this study include those from various countries as follows: Australia, Chaetopsina eucalypti on Eucalyptus leaf litter, Colletotrichum cobbittiense from Cordyline stricta × C. australis hybrid, Cyanodermella banksiae on Banksia ericifolia subsp. macrantha, Discosia macrozamiae on Macrozamia miquelii, Elsinoë banksiigena on Banksia marginata, Elsinoë elaeocarpi on Elaeocarpus sp., Elsinoë leucopogonis on Leucopogon sp., Helminthosporium livistonae on Livistona australis, Idriellomyces eucalypti (incl. Idriellomyces gen. nov.) on Eucalyptus obliqua, Lareunionomyces eucalypti on Eucalyptus sp., Myrotheciomyces corymbiae (incl. Myrotheciomyces gen. nov., Myrotheciomycetaceae fam. nov.), Neolauriomyces eucalypti (incl. Neolauriomyces gen. nov., Neolauriomycetaceae fam. nov.) on Eucalyptus sp., Nullicamyces eucalypti (incl. Nullicamyces gen. nov.) on Eucalyptus leaf litter, Oidiodendron eucalypti on Eucalyptus maidenii, Paracladophialophora cyperacearum (incl. Paracladophialophoraceae fam. nov.) and Periconia cyperacearum on leaves of Cyperaceae, Porodiplodia livistonae (incl. Porodiplodia gen. nov., Porodiplodiaceae fam. nov.) on Livistona australis, Sporidesmium melaleucae (incl. Sporidesmiales ord. nov.) on Melaleuca sp., Teratosphaeria sieberi on Eucalyptus sieberi, Thecaphora australiensis in capsules of a variant of Oxalis exilis. Brazil, Aspergillus serratalhadensis from soil, Diaporthe pseudoinconspicua from Poincianella pyramidalis, Fomitiporella pertenuis on dead wood, Geastrum magnosporum on soil, Marquesius aquaticus (incl. Marquesius gen. nov.) from submerged decaying twig and leaves of unidentified plant, Mastigosporella pigmentata from leaves of Qualea parviflorae, Mucor souzae from soil, Mycocalia aquaphila on decaying wood from tidal detritus, Preussia citrullina as endophyte from leaves of Citrullus lanatus, Queiroziella brasiliensis (incl. Queiroziella gen. nov.) as epiphytic yeast on leaves of Portea leptantha, Quixadomyces cearensis (incl. Quixadomyces gen. nov.) on decaying bark, Xylophallus clavatus on rotten wood. Canada, Didymella cari on Carum carvi and Coriandrum sativum. Chile, Araucasphaeria foliorum (incl. Araucasphaeria gen. nov.) on Araucaria araucana, Aspergillus tumidus from soil, Lomentospora valparaisensis from soil. Colombia, Corynespora pseudocassiicola on Byrsonima sp., Eucalyptostroma eucalyptorum on Eucalyptus pellita, Neometulocladosporiella eucalypti (incl. Neometulocladosporiella gen. nov.) on Eucalyptus grandis × urophylla, Tracylla eucalypti (incl. Tracyllaceae fam. nov., Tracyllalales ord. nov.) on Eucalyptus urophylla. Cyprus, Gyromitra anthracobia (incl. Gyromitra subg. Pseudoverpa) on burned soil. Czech Republic, Lecanicillium restrictum from the surface of the wooden barrel, Lecanicillium testudineum from scales of Trachemys scripta elegans. Ecuador, Entoloma yanacolor and Saproamanita quitensis on soil. France, Lentithecium carbonneanum from submerged decorticated Populus branch. Hungary, Pleuromyces hungaricus (incl. Pleuromyces gen. nov.) from a large Fagus sylvatica log. Iran, Zymoseptoria crescenta on Aegilops triuncialis. Malaysia, Ochroconis musicola on Musa sp. Mexico, Cladosporium michoacanense from soil. New Zealand , Acrodontium metrosideri on Metrosideros excelsa, Polynema podocarpi on Podocarpus totara, Pseudoarthrographis phlogis (incl. Pseudoarthrographis gen. nov.) on Phlox subulata. Nigeria, Coprinopsis afrocinerea on soil. Pakistan, Russula mansehraensis on soil under Pinus roxburghii. Russia, Baorangia alexandri on soil in deciduous forests with Quercus mongolica. South Africa, Didymocyrtis brachylaenae on Brachylaena discolor. Spain, Alfaria dactylis from fruit of Phoenix dactylifera, Dothiora infuscans from a blackened wall, Exophiala nidicola from the nest of an unidentified bird, Matsushimaea monilioides from soil, Terfezia morenoi on soil. United Arab Emirates, Tirmania honrubiae on soil. USA, Arxotrichum wyomingense (incl. Arxotrichum gen. nov.) from soil, Hongkongmyces snookiorum from submerged detritus from a fresh water fen, Leratiomyces tesquorum from soil, Talaromyces tabacinus on leaves of Nicotiana tabacum. Vietnam, Afroboletus vietnamensis on soil in an evergreen tropical forest, Colletotrichum condaoense from Ipomoea pes-caprae. Morphological and culture characteristics along with DNA barcodes are provided.

10.
Biotechnol Prog ; 34(6): 1314-1334, 2018 11.
Artículo en Inglés | MEDLINE | ID: mdl-30009567

RESUMEN

Several of the over 200 known species of Agave L. are currently used for production of distilled beverages and biopolymers. The plants live in a wide range of stressful environments as a result of their resistance to abiotic stress (drought, salinity, and extreme temperature) and pathogens, which gives the genus potential for germplasm conservation and biotechnological applications that may minimize economic losses as a result of the global climate change. However, the limited knowledge in the genus of genome structure and organization hampers development of potential improved biotechnological applications by means of genetic manipulation and biocatalysis. We reviewed Agave and plant sequences in the GenBank NCBI database for identifying genes with biotechnological potential for fermentation, bioenergy, fiber improvement, and in vivo plant biopolymer production. Three-dimensional modeling of enzyme structures in plant accessions revealed structural differences in sucrose 1-fructosyltransferase, fructan 1-fructosyltransferase, fructan exohydrolase (1-FEH), cellulose synthase (CES), and glucanases (EGases) with possible effects in fructan, sugar, and biopolymer production. Although the coding genes of FEH and enzymes involved in biopolymer production (CES, sucrose synthase, and EGases) remain unidentified in Agave L., our results could aid isolation of such genes in Agave. By comparing nucleotide and amino acid sequences in accessions of Agave and other plants, knowledge may be gained about transcriptional regulation and enzymatic activity factors. Future study is needed of biotechnological application of Agave genes for crop breeding aided by genetic engineering and biocatalysis. © 2018 American Institute of Chemical Engineers Biotechnol. Prog., 34:1314-1334, 2018.


Asunto(s)
Agave/metabolismo , Biocatálisis , Biopolímeros/metabolismo , Biotecnología/métodos , Fermentación/fisiología
11.
J Mol Evol ; 86(6): 404-423, 2018 07.
Artículo en Inglés | MEDLINE | ID: mdl-29992348

RESUMEN

Agave L. is a genus of economic importance, and many of the 166 species in the American plant genus Agave L. inhabit high-stress environments, which makes the genus promising for facing global climate change. However, sustainable use of economically important species without interfering with their ecology and evolution requires generating knowledge about the factors responsible for their genetic variation and diversity and, on this basis, their adaptation and speciation. Few genetic studies exploring the evolutionary relationships, speciation processes, genetic variability and diversity within species of Agave are currently available. Analyses of rDNA loci have been performed with the purpose of determining the genetic variability and diversity of the genus Agave, and these loci have been used as genetic markers of ploidy. However, the factors involved in the diversity of 5S rDNA regions in Agave have not yet been studied in depth. Our study explored the possible mechanisms of genetic (retroelements) and epigenetic (DNA methylation) diversity in 5S rDNA regions in Agave. We characterized the 5S rDNA gene tandem in species of the genus with different ploidy numbers and determined the levels of methylation in 13 haplotypes of 5S rDNA and in four non-transcribed spacers (NTS). Our results showed highly dynamic methylation with a high percentage in haplotypes and NTS of 5S rDNA regions in Agave. The characterization of the 5S rDNA tandem array in Agave revealed vestigial remains of the Cassandra terminal-repeat retrotransposon in miniature (TRIM). Our analysis supported previous results suggesting that in species of Agave L., regulation and diversity of 5S rDNA regions are controlled by coordinated genetic and epigenetic events, which will vary according to the species and the level of ploidy. The artificial pressure to which some agave crops are subjected may affect the mechanisms of evolution of gene 5S rDNA.


Asunto(s)
Agave/genética , Metilación de ADN/genética , ADN Ribosómico/genética , Variación Genética , Retroelementos/genética , Secuencia de Bases , ADN Intergénico/genética , ADN Ribosómico/química , Ecotipo , Haplotipos/genética , Conformación de Ácido Nucleico , Filogenia
12.
Rev Clin Esp (Barc) ; 218(5): 223-231, 2018.
Artículo en Inglés, Español | MEDLINE | ID: mdl-29661504

RESUMEN

AIMS: Hospital complications and hyperglycemia are common in elderly patients during hospitalization. Our aim was to analyze the relationship between hyperglycemia and hospital complications in an ageing population. METHODS: We conducted an observational study to evaluate the association between maximum blood glucose (MBG) levels and hospital complications. Patients were stratified according to the quartiles of MBG levels. Diabetes mellitus (DM) was determined by patient history and/or admission glycated hemoglobin (HbA1c) level ≥6.5%. Hyperglycemia in patients without DM was defined as stress-induced hyperglycemia (SH). The composite primary end-point included frequent complications and/or all-cause hospital mortality. RESULTS: Among 461 patients, mean age 80±7.5years, 238 (51.6%) patients had DM, 20 had undiagnosed DM, and 162 (35.1%) developed hospital complications. Patients with complications had higher mean daily BG levels (215±84 vs 195±85mg/dl, P<.01). The incidence of complications was directly associated with severity of hyperglycemia according to the quartiles of MBG levels in patients without DM, namely SH (<140 mg/dl, 22.2%; 140-185mg/dl, 40%; 186-250mg/dl, 47%; >250mg/dl, 60%; P=.002), but not in patients with DM (<140mg/dl, 26.3%; 140-185mg/dl, 40.4%; 186-250mg/dl, 35.6%; >250mg/dl, 37.4%; P=.748). In the multivariate analyses, SH was independently associated with complications: OR 2.60 (CI95%: 1.2-5.6), 2.82 (CI95%: 1.2-6.5), 5.50 (CI95%: 1.4-20.8) for the second, third and fourth quartile respectively (P=.01), as compared to the first quartile. We found no association with readmissions and all-cause mortality. CONCLUSIONS: SH in elderly patients is associated with hospital complications, but not with all-cause mortality, compared to patients with diabetes or normoglycemia.

13.
Persoonia ; 38: 240-384, 2017 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-29151634

RESUMEN

Novel species of fungi described in this study include those from various countries as follows: Australia: Banksiophoma australiensis (incl. Banksiophoma gen. nov.) on Banksia coccinea, Davidiellomycesaustraliensis (incl. Davidiellomyces gen. nov.) on Cyperaceae, Didymocyrtis banksiae on Banksia sessilis var. cygnorum, Disculoides calophyllae on Corymbia calophylla, Harknessia banksiae on Banksia sessilis, Harknessia banksiae-repens on Banksia repens, Harknessia banksiigena on Banksia sessilis var. cygnorum, Harknessia communis on Podocarpus sp., Harknessia platyphyllae on Eucalyptus platyphylla, Myrtacremonium eucalypti (incl. Myrtacremonium gen. nov.) on Eucalyptus globulus, Myrtapenidiella balenae on Eucalyptus sp., Myrtapenidiella eucalyptigena on Eucalyptus sp., Myrtapenidiella pleurocarpae on Eucalyptuspleurocarpa, Paraconiothyrium hakeae on Hakea sp., Paraphaeosphaeria xanthorrhoeae on Xanthorrhoea sp., Parateratosphaeria stirlingiae on Stirlingia sp., Perthomyces podocarpi (incl. Perthomyces gen. nov.) on Podocarpus sp., Readeriella ellipsoidea on Eucalyptus sp., Rosellinia australiensis on Banksia grandis, Tiarosporella corymbiae on Corymbia calophylla, Verrucoconiothyriumeucalyptigenum on Eucalyptus sp., Zasmidium commune on Xanthorrhoea sp., and Zasmidium podocarpi on Podocarpus sp. Brazil: Cyathus aurantogriseocarpus on decaying wood, Perenniporia brasiliensis on decayed wood, Perenniporia paraguyanensis on decayed wood, and Pseudocercospora leandrae-fragilis on Leandrafragilis.Chile: Phialocephala cladophialophoroides on human toe nail. Costa Rica: Psathyrella striatoannulata from soil. Czech Republic: Myotisia cremea (incl. Myotisia gen. nov.) on bat droppings. Ecuador: Humidicutis dictiocephala from soil, Hygrocybe macrosiparia from soil, Hygrocybe sangayensis from soil, and Polycephalomyces onorei on stem of Etlingera sp. France: Westerdykella centenaria from soil. Hungary: Tuber magentipunctatum from soil. India: Ganoderma mizoramense on decaying wood, Hodophilus indicus from soil, Keratinophyton turgidum in soil, and Russula arunii on Pterigota alata.Italy: Rhodocybe matesina from soil. Malaysia: Apoharknessia eucalyptorum, Harknessia malayensis, Harknessia pellitae, and Peyronellaea eucalypti on Eucalyptus pellita, Lectera capsici on Capsicum annuum, and Wallrothiella gmelinae on Gmelina arborea.Morocco: Neocordana musigena on Musa sp. New Zealand: Candida rongomai-pounamu on agaric mushroom surface, Candida vespimorsuum on cup fungus surface, Cylindrocladiella vitis on Vitis vinifera, Foliocryphia eucalyptorum on Eucalyptus sp., Ramularia vacciniicola on Vaccinium sp., and Rhodotorula ngohengohe on bird feather surface. Poland: Tolypocladium fumosum on a caterpillar case of unidentified Lepidoptera.Russia: Pholiotina longistipitata among moss. Spain: Coprinopsis pseudomarcescibilis from soil, Eremiomyces innocentii from soil, Gyroporus pseudocyanescens in humus, Inocybe parvicystis in humus, and Penicillium parvofructum from soil. Unknown origin: Paraphoma rhaphiolepidis on Rhaphiolepsis indica.USA: Acidiella americana from wall of a cooling tower, Neodactylaria obpyriformis (incl. Neodactylaria gen. nov.) from human bronchoalveolar lavage, and Saksenaea loutrophoriformis from human eye. Vietnam: Phytophthora mekongensis from Citrus grandis, and Phytophthora prodigiosa from Citrus grandis. Morphological and culture characteristics along with DNA barcodes are provided.

14.
Arch Soc Esp Oftalmol ; 92(12): 565-570, 2017 Dec.
Artículo en Inglés, Español | MEDLINE | ID: mdl-28720313

RESUMEN

OBJECTIVE: To study the causes, diagnosis and treatment in a case series of binocular diplopia. MATERIAL AND METHOD: A retrospective chart review was performed on patients seen in the Diplopia Unit of a tertiary centre during a one-year period. Diplopia was classified as: acute≤1 month since onset; subacute (1-6 months); and chronic (>6 months). Resolution of diplopia was classified as: spontaneous if it disappeared without treatment, partial if the course was intermittent, and non-spontaneous if treatment was required. It was considered a good outcome when diplopia disappeared completely (with or without treatment), or when diplopia was intermittent without significantly affecting the quality of life. RESULTS: A total of 60 cases were included. The mean age was 58.65 years (60% female). An acute or subacute presentation was observed in 60% of the patients. The mean onset of diplopia was 82.97 weeks. The most frequent aetiology was ischaemic (45%). The most frequent diagnosis was sixth nerve palsy (38.3%), followed by decompensated strabismus (30%). Neuroimaging showed structural lesions in 17.7% of the patients. There was a spontaneous resolution in 28.3% of the cases, and there was a good outcome with disappearance of the diplopia in 53.3% at the end of the study. CONCLUSIONS: The most frequent causes of binocular diplopia were cranial nerve palsies, especially the sixth cranial nerve, followed by decompensated strabismus. Structural lesions in imaging tests were more than expected. Only one third of patients had a spontaneous resolution, and half of them did not have a good outcome despite of treatment.


Asunto(s)
Diplopía , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Diplopía/diagnóstico , Diplopía/etiología , Diplopía/terapia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Centros de Atención Terciaria , Adulto Joven
15.
Persoonia ; 39: 270-467, 2017 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-29503478

RESUMEN

Novel species of fungi described in this study include those from various countries as follows: Antarctica: Cadophora antarctica from soil. Australia: Alfaria dandenongensis on Cyperaceae, Amphosoma persooniae on Persoonia sp., Anungitea nullicana on Eucalyptus sp., Bagadiella eucalypti on Eucalyptus globulus, Castanediella eucalyptigena on Eucalyptus sp., Cercospora dianellicola on Dianella sp., Cladoriella kinglakensis on Eucalyptus regnans, Cladoriella xanthorrhoeae (incl. Cladoriellaceae fam. nov. and Cladoriellales ord. nov.) on Xanthorrhoea sp., Cochlearomyces eucalypti (incl. Cochlearomyces gen. nov. and Cochlearomycetaceae fam. nov.) on Eucalyptus obliqua, Codinaea lambertiae on Lambertia formosa, Diaporthe obtusifoliae on Acacia obtusifolia, Didymella acaciae on Acacia melanoxylon, Dothidea eucalypti on Eucalyptus dalrympleana, Fitzroyomyces cyperi (incl. Fitzroyomyces gen. nov.) on Cyperaceae, Murramarangomyces corymbiae (incl. Murramarangomyces gen. nov., Murramarangomycetaceae fam. nov. and Murramarangomycetales ord. nov.) on Corymbia maculata, Neoanungitea eucalypti (incl. Neoanungitea gen. nov.) on Eucalyptus obliqua, Neoconiothyrium persooniae (incl. Neoconiothyrium gen. nov.) on Persoonia laurina subsp. laurina, Neocrinula lambertiae (incl. Neocrinulaceae fam. nov.) on Lambertia sp., Ochroconis podocarpi on Podocarpus grayae, Paraphysalospora eucalypti (incl. Paraphysalospora gen. nov.) on Eucalyptus sieberi, Pararamichloridium livistonae (incl. Pararamichloridium gen. nov., Pararamichloridiaceae fam. nov. and Pararamichloridiales ord. nov.) on Livistona sp., Pestalotiopsis dianellae on Dianella sp., Phaeosphaeria gahniae on Gahnia aspera, Phlogicylindrium tereticornis on Eucalyptus tereticornis, Pleopassalora acaciae on Acacia obliquinervia, Pseudodactylaria xanthorrhoeae (incl. Pseudodactylaria gen. nov., Pseudodactylariaceae fam. nov. and Pseudodactylariales ord. nov.) on Xanthorrhoea sp., Pseudosporidesmium lambertiae (incl. Pseudosporidesmiaceae fam. nov.) on Lambertia formosa, Saccharata acaciae on Acacia sp., Saccharata epacridis on Epacris sp., Saccharata hakeigena on Hakea sericea, Seiridium persooniae on Persoonia sp., Semifissispora tooloomensis on Eucalyptus dunnii, Stagonospora lomandrae on Lomandra longifolia, Stagonospora victoriana on Poaceae, Subramaniomyces podocarpi on Podocarpus elatus, Sympoventuria melaleucae on Melaleuca sp., Sympoventuria regnans on Eucalyptus regnans, Trichomerium eucalypti on Eucalyptus tereticornis, Vermiculariopsiella eucalypticola on Eucalyptus dalrympleana, Verrucoconiothyrium acaciae on Acacia falciformis, Xenopassalora petrophiles (incl. Xenopassalora gen. nov.) on Petrophile sp., Zasmidium dasypogonis on Dasypogon sp., Zasmidium gahniicola on Gahnia sieberiana.Brazil: Achaetomium lippiae on Lippia gracilis, Cyathus isometricus on decaying wood, Geastrum caririense on soil, Lycoperdon demoulinii (incl. Lycoperdon subg. Arenicola) on soil, Megatomentella cristata (incl. Megatomentella gen. nov.) on unidentified plant, Mutinus verrucosus on soil, Paraopeba schefflerae (incl. Paraopeba gen. nov.) on Schefflera morototoni, Phyllosticta catimbauensis on Mandevilla catimbauensis, Pseudocercospora angularis on Prunus persica, Pseudophialophora sorghi on Sorghum bicolor, Spumula piptadeniae on Piptadenia paniculata.Bulgaria: Yarrowia parophonii from gut of Parophonus hirsutulus. Croatia: Pyrenopeziza velebitica on Lonicera borbasiana.Cyprus: Peziza halophila on coastal dunes. Czech Republic: Aspergillus contaminans from human fingernail. Ecuador: Cuphophyllus yacurensis on forest soil, Ganoderma podocarpense on fallen tree trunk. England: Pilidium anglicum (incl. Chaetomellales ord. nov.) on Eucalyptus sp. France: Planamyces parisiensis (incl. Planamyces gen. nov.) on wood inside a house. French Guiana: Lactifluus ceraceus on soil. Germany: Talaromyces musae on Musa sp. India: Hyalocladosporiella cannae on Canna indica, Nothophoma raii from soil. Italy: Setophaeosphaeria citri on Citrus reticulata, Yuccamyces citri on Citrus limon.Japan: Glutinomyces brunneus (incl. Glutinomyces gen. nov.) from roots of Quercus sp. Netherlands (all from soil): Collariella hilkhuijsenii, Fusarium petersiae, Gamsia kooimaniorum, Paracremonium binnewijzendii, Phaeoisaria annesophieae, Plectosphaerella niemeijerarum, Striaticonidium deklijnearum, Talaromyces annesophieae, Umbelopsis wiegerinckiae, Vandijckella johannae (incl. Vandijckella gen. nov. and Vandijckellaceae fam. nov.), Verhulstia trisororum (incl. Verhulstia gen. nov.). New Zealand: Lasiosphaeria similisorbina on decorticated wood. Papua New Guinea: Pseudosubramaniomyces gen. nov. (based on Pseudosubramaniomyces fusisaprophyticus comb. nov.). Slovakia: Hemileucoglossum pusillum on soil. South Africa: Tygervalleyomyces podocarpi (incl. Tygervalleyomyces gen. nov.) on Podocarpus falcatus.Spain: Coniella heterospora from herbivorous dung, Hymenochaete macrochloae on Macrochloa tenacissima, Ramaria cistophila on shrubland of Cistus ladanifer.Thailand: Polycephalomyces phaothaiensis on Coleoptera larvae, buried in soil. Uruguay: Penicillium uruguayense from soil. Vietnam: Entoloma nigrovelutinum on forest soil, Volvariella morozovae on wood of unknown tree. Morphological and culture characteristics along with DNA barcodes are provided.

16.
Brain Res ; 1656: 63-67, 2017 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-26972536

RESUMEN

Data generated in Niemann Pick type C1 (NPC1) human embryonic and human induced pluripotent stem cell derived neurons complement on-going studies in animal models and provide the first example, in disease-relevant human cells, of processes that underlie preferential neuronal defects in a NPC1. Our work and that of other investigators in human neurons derived from stem cells highlight the importance of performing rigorous mechanistic studies in relevant cell types to guide drug discovery and therapeutic development, alongside of existing animal models. Through the use of human stem cell-derived models of disease, we can identify and discover or repurpose drugs that revert early events that lead to neuronal failure in NPC1. Together with the study of disease pathogenesis and efficacy of therapies in animal models, these strategies will fulfill the promise of stem cell technology in the development of new treatments for human diseases. This article is part of a Special Issue entitled SI: Exploiting human neurons.


Asunto(s)
Células Madre Embrionarias/fisiología , Células Madre Pluripotentes Inducidas/fisiología , Enfermedad de Niemann-Pick Tipo C/fisiopatología , Animales , Descubrimiento de Drogas , Células Madre Embrionarias/efectos de los fármacos , Humanos , Células Madre Pluripotentes Inducidas/efectos de los fármacos , Enfermedad de Niemann-Pick Tipo C/tratamiento farmacológico
17.
J Plant Physiol ; 195: 80-94, 2016 May 20.
Artículo en Inglés | MEDLINE | ID: mdl-27016883

RESUMEN

Polyploidy has been widely described in many Agave L. species, but its influence on environmental response to stress is still unknown. With the objective of knowing the morphological adaptations and regulation responses of genes related to biotic (LEA) and abiotic (NBS-LRR) stress in species of Agave with different levels of ploidy, and how these factors contribute to major response of Agave against environmental stresses, we analyzed 16 morphological trials on five accessions of three species (Agave tequilana Weber, Agave angustifolia Haw. and Agave fourcroydes Lem.) with different ploidy levels (2n=2x=60 2n=3x=90, 2n=5x=150, 2n=6x=180) and evaluated the expression of NBS-LRR and LEA genes regulated by biotic and abiotic stress. It was possible to associate some morphological traits (spines, nuclei, and stomata) to ploidy level. The genetic characterization of stress-related genes NBS-LRR induced by pathogenic infection and LEA by heat or saline stresses indicated that amino acid sequence analysis in these genes showed more substitutions in higher ploidy level accessions of A. fourcroydes Lem. 'Sac Ki' (2n=5x=150) and A. angustifolia Haw. 'Chelem Ki' (2n=6x=180), and a higher LEA and NBS-LRR representativeness when compared to their diploid and triploid counterparts. In all studied Agave accessions expression of LEA and NBS-LRR genes was induced by saline or heat stresses or by infection with Erwinia carotovora, respectively. The transcriptional activation was also higher in A. angustifolia Haw. 'Chelem Ki' (2n=6x=180) and A. fourcroydes 'Sac Ki' (2n=5x=150) than in their diploid and triploid counterparts, which suggests higher adaptation to stress. Finally, the diploid accession A. tequilana Weber 'Azul' showed a differentiated genetic profile relative to other Agave accessions. The differences include similar or higher genetic representativeness and transcript accumulation of LEA and NBS-LRR genes than in polyploid (2n=5x=150 and 2n=6x=180) Agave accessions, thus suggesting a differentiated selection pressure for overcoming the lower ploidy level of the diploid A. tequilana Weber 'Azul'.


Asunto(s)
Aclimatación , Agave/fisiología , Dosificación de Gen/genética , Genoma de Planta/genética , Agave/genética , Agave/ultraestructura , Diploidia , Ambiente , Fenotipo , Filogenia , Proteínas de Plantas/genética , Estomas de Plantas/genética , Estomas de Plantas/fisiología , Estomas de Plantas/ultraestructura , Ploidias , Poliploidía , Estrés Fisiológico
18.
Pharmacogenomics J ; 16(2): 137-40, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25896535

RESUMEN

Genetic biomarkers could be useful for orienting treatment of patients with rheumatoid arthritis (RA), but none has been convincingly validated yet. Putative biomarkers include 14 single nucleotide polymorphisms that have shown association with response to TNF inhibitors (TNFi) in candidate gene studies and that we assayed here in 755 RA patients. Three of them, in the PTPRC, IL10 and CHUK genes, were significantly associated with response to TNFi. The most significant result was obtained with rs10919563 in PTPRC, which is a confirmed RA susceptibility locus. Its RA risk allele was associated with improved response (B=0.33, P=0.006). This is the second independent replication of this biomarker (P=9.08 × 10(-8) in the combined 3003 RA patients). In this way, PTPRC has become the most replicated genetic biomarker of response to TNFi. In addition, the positive but weaker replication of IL10 and CHUK should stimulate further validation studies.


Asunto(s)
Antirreumáticos/uso terapéutico , Artritis Reumatoide/tratamiento farmacológico , Quinasa I-kappa B/genética , Interleucina-10/genética , Antígenos Comunes de Leucocito/genética , Factor de Necrosis Tumoral alfa/antagonistas & inhibidores , Adalimumab/uso terapéutico , Artritis Reumatoide/genética , Femenino , Estudios de Asociación Genética , Marcadores Genéticos , Humanos , Infliximab/uso terapéutico , Masculino , Persona de Mediana Edad , Polimorfismo de Nucleótido Simple , Riesgo
19.
Farm Hosp ; 38(4): 305-16, 2014 Jul 01.
Artículo en Español | MEDLINE | ID: mdl-25137164

RESUMEN

INTRODUCTION: Potentially inappropriate medication (PIM) prescribing in older adults is quite prevalent and is associated with an increased risk for adverse drug events, morbidity, and utilization of health care resources. The aim of this study was to determine the prevalence and type of PIM in polypharmacy elderly patients on admission and discharge and the factors associated with their prescription. Just as the applicability of various explicit criteria selected from the literature and adapted to our area. METHODS: We performed a cross-sectional study for 12 months (March 2010-February 2011) on 179 polypharmacy elderly patients admitted to an Internal Medicine Department. We created a list of 50 PIM using a Delphi approach based on previous published criteria (Beers, Stopp, BMC and Priscus). Through patient interviews, review of medical records and discharge reconciliation report, we identified the prevalence of PIM in the patients. We also analyzed the relationship between different factors and the prescription of PIM. RESULTS: The prevalence of patients with PIM on admission and discharge were 71% and 48%, respectively. Out of the 50 selected PIM, 27 and 26 were detected on admission and discharge, respectively (55.5% and 57.69% included on STOPP criteria). We detected two factors associated with PIM prescription at discharge: severe-total dependence (OR = 1.8) and prescription of more than 11 drugs (OR = 2). CONCLUSIONS: PIM prevalence in our population is very high (70%), especially at hospital admission. These findings support the need for measures aimed at improving the quality of prescriptions, especially on dependent patients with polypharmacy.


INTRODUCCIÓN: En personas mayores la prescripción de medicamentos potencialmente inapropiados (PIM) es muy elevada y se asocia con mayor riesgo de eventos adversos, morbilidad y utilización de recursos sanitarios. El objetivo del presente estudio es conocer la prevalencia y tipo de PIM en pacientes ancianos polimedicados al ingreso y alta hospitalaria, los factores asociados a su prescripción y la aplicabilidad de distintos criterios explícitos seleccionados de la bibliografía y adaptados a nuestro ámbito. MÉTODO: Se realiza estudio observacional transversal durante 12 meses (marzo 2010-febrero 2011), sobre 179 pacientes ancianos polimedicados, ingresados en un servicio de Medicina Interna. Como herramienta para detectar la prescripción inadecuada se seleccionaron 50 PIM a partir de la bibliografía (criterios Beers, Stopp, BMC y Priscus) utilizando una técnica Delphi. A través de entrevista con el paciente, revisión de historias clínicas e informe de conciliación se identificaron los PIM previamente seleccionados. Posteriormente se analizó la relación entre distintos factores y la prescripción de PIM. RESULTADOS: La prevalencia de pacientes con PIM al ingreso fue de 71% y al alta de 48%. De 50 PIM seleccionados, sólo se detectaron 27 y 26 tipos (55,5% y 57,69% criterios STOPP) al ingreso y al alta respectivamente. Los factores asociados a la prescripción de PIM al alta fueron: dependencia severa-total (OR = 1,8; IC 95% 1,0-3,4) y nº de medicamentos mayor de 11 (OR = 2; IC 95% 1,1-3,7). CONCLUSIONES: La prevalencia de PIM en nuestra población es muy elevada (70%) especialmente al ingreso hospitalario, estos resultados apoyan la necesidad de adoptar medidas enfocadas a mejorar la calidad de la prescripción prioritariamente en pacientes dependientes y polimedicados.


Asunto(s)
Polifarmacia , Lista de Medicamentos Potencialmente Inapropiados/estadística & datos numéricos , Anciano , Anciano de 80 o más Años , Estudios Transversales , Femenino , Hospitalización , Humanos , Masculino
20.
Rev. esp. anestesiol. reanim ; 61(5): 254-261, mayo 2014.
Artículo en Español | IBECS | ID: ibc-121221

RESUMEN

Objetivo. Comparar los costes variables en relación con la efectividad clínica de la utilización de anestesia general frente a anestesia subaracnoidea en la cirugía ambulatoria de la hernia inguinal. Material y métodos. Estudio observacional, de cohortes, retrospectivo, con medición y análisis del coste-efectividad, realizado en una unidad de cirugía ambulatoria de un hospital general entre enero de 2010 y diciembre de 2011. Se incluyeron pacientes mayores de 18 años con tratamiento quirúrgico de la hernia inguinal primaria unilateral. Los tiempos de inducción anestésica y permanencia en quirófano y en unidad de recuperación postanestésica, la efectividad anestésica (incidencia de efectos adversos y el grado de bienestar del paciente) y los costes variables asociados al consumo de fármacos y utilización de recursos humanos fueron comparados. Resultados. Se incluyeron 218 pacientes, el 87,2% hombres, con una edad media de 53 años (rango 18 a 85 años). Ciento treinta y nueve (63,76%) pacientes recibieron anestesia subaracnoidea, y 79 (36,2%), anestesia general. La permanencia en recuperación postanestésica fue de 337,6 ± 160,2 min en el grupo de anestesia subaracnoidea y de 210,0 ± 97,5 min para el grupo de anestesia general (p < 0,001). Los costes de los fármacos para anestesia general fueron mayores que para subaracnoidea (86,2 ± 8,3 frente a 18,7 ± 7,2). La diferencia del coste total entre ambas técnicas fue de 115,8 Euros, mayor para el grupo de anestesia subaracnoidea (p < 0,001). Conclusiones. La anestesia subaracnoidea y la general muestran una efectividad similar, pero los costes globales para la primera son mayores que para la segunda. La relación coste-efectividad es más favorable para la anestesia general que para la subaracnoidea en hernioplastia ambulatoria (AU)


Objective. To compare the costs related to the clinical effectiveness of general anesthesia versus spinal anesthesia in inguinal hernioplasty ambulatory surgery. Material and methods. An observational, retrospective cohort study measurement and analysis of cost-effectiveness, in the ambulatory surgery unit of a general hospital. All patients over 18 years of age diagnosed with primary inguinal hernia and scheduled for unilateral hernioplasty between January 2010 and December 2011 were included. Duration of anesthetic induction, length of stay in both the operating room, and in the post-anesthesia care unit, the anesthetic effectiveness (the incidence of adverse effects and the patient's comfort level), and variable economic costs associated with the use of drugs, as well as the use of human resources, were compared. Results. The final analysis included 218 patients, 87.2% male, with a mean age of 53 years (range: 18-85 years). Of these, 139 (63.76%) received subarachnoid anesthesia and 79,(36.2%) general anesthesia. The length of time a patient remained in the post-anesthesia care unit was 337.6 ± 160.2 min in the subarachnoid anesthesia group, and 210.0 ± 97.5 min for the general anesthesia group (P < .001). Costs of drugs for general anesthesia were higher than that for subarachnoid anesthesia (86.2 ± 8.3 vs. 18.7 ± 7.2). The total cost difference between the 2 techniques was Euros 115.8 more for subarachnoid anesthesia (P < .001). Conclusions. Both techniques showed similar effectiveness. The overall costs for subarachnoid anesthesia were greater than for the general. The cost-effectiveness of general anesthesia is better for outpatient inguinal hernia repair surgery (AU)


Asunto(s)
Humanos , Masculino , Femenino , Adulto , Persona de Mediana Edad , Hernia Inguinal/complicaciones , Hernia Inguinal/diagnóstico , Hernia Inguinal/tratamiento farmacológico , Economía Farmacéutica/organización & administración , Economía Farmacéutica/normas , Anestesia General/métodos , Anestesia General , Hernia Inguinal/fisiopatología , Hernia Inguinal/cirugía , Costos y Análisis de Costo , 50303 , Servicio Ambulatorio en Hospital/organización & administración , Servicio Ambulatorio en Hospital/normas , Economía Hospitalaria/tendencias , Estudios Retrospectivos , Estudios de Cohortes
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...