Search results for "Micro"
showing 10 items of 23412 documents
Rapid detection of carbapenem resistance: Targeting a zero level of inadequate empiric antibiotic exposure
2016
Resistance to carbapenems is an increasingly encountered phenomenon in the ICU, complicating empiric and targeted antimicrobial therapy. Infections due to carbapenem-resistant microorganisms are characterized by high morbidity and mortality [1, 2]. Recently, there has been an increasing interest in rapid detection techniques, based on real time on-demand easy-to-use PCR, to detect genes responsible for carbapenem resistance. One of these techniques is the Cepheid Xpert Carba-R assay, which is able to detect and differentiate five of the most frequent genes associated with non-susceptibility to carbapenems in Gram-negative bacteria (bla KPC, bla VIM, bla OXA-48, bla IMP-1, bla NDM). The diag…
Identification of Predominant Lactic Acid Bacteria and Yeasts of Turkish Sourdoughs and Selection of Starter Cultures for Liquid Sourdough Production…
2016
WOS: 000375613200005
Perfiles de resistencia y factores de riesgo de microorganismos resistentes en bacteriemia de origen abdominal
2017
Resumen Objetivo La presencia de microorganismos resistentes es una causa importante de fallo en el tratamiento antimicrobiano inicial. Los objetivos de este estudio son conocer el perfil de resistencia de los microorganismos causantes de bacteriemia de origen abdominal e identificar si el uso previo de antibioticos y el lugar de adquisicion de la bacteriemia son factores de riesgo para determinar la presencia de microorganismos resistentes. Material y metodo Se diseno un estudio de cohorte retrospectiva de todos los pacientes adultos que presentaron bacteriemia y/o fungemia cuyo foco infeccioso primario fue de origen abdominal ingresados en un hospital universitario durante los anos 2011-2…
Análisis de casos de candidemia por Candida auris en una Unidad de Cuidados Intensivos de Anestesia en un hospital terciario
2021
Resumen Candida auris es una levadura emergente multirresistente. Objetivos Analizar la relacion entre la existencia de colonizacion por C. auris y la aparicion de candidiasis invasora. Descripcion de la muestra de pacientes colonizados, factores de riesgo para colonizacion y/o infeccion y calculo de las tasas de mortalidad. Metodologia Estudio observacional longitudinal en una Unidad de Cuidados Intensivos de Anestesia durante el ano 2018. Resultados Ingresaron 2.130 pacientes; 124 pacientes tuvieron estudios de vigilancia positivos, 118 casos fueron colonizacion cutanea y 52 faringea. Se identificaron los pacientes con hemocultivo positivo. Se encontro asociacion estadisticamente signific…
HPV vaccine hesitancy among parents of female adolescents: a pre-post interventional study
2017
Human papillomavirus (HPV) is the most common sexually transmitted infection in female adolescents. The highest infection rate is found among individuals aged 15-24 years, and the HPV vaccine represents an opportunity to reduce the burden of cervical cancer caused by HPV types 16 and 18. The World Health Organization has defined girls aged 9e13 years as the priority target for HPV vaccination. In Italy, in accordance with international public health guidelines, HPV vaccination wasfree and actively offered to all girls during their 12th year of life (from the completion of 11 years until the age of 12 years) between 2007 and 2008, establishing a target vaccination coverage of 95% within 5 ye…
MicroRNA-33b Suppresses Epithelial-Mesenchymal Transition Repressing the MYC-EZH2 Pathway in HER2+ Breast Carcinoma
2020
Downregulation of miR-33b has been documented in many types of cancers and is being involved in proliferation, migration, and epithelial-mesenchymal transition (EMT). Furthermore, the enhancer of zeste homolog 2-gene (EZH2) is a master regulator of controlling the stem cell differentiation and the cell proliferation processes. We aim to evaluate the implication of miR-33b in the EMT pathway in HER2+ breast cancer (BC) and to analyze the role of EZH2 in this process as well as the interaction between them. miR-33b is downregulated in HER2+ BC cells vs healthy controls, where EZH2 has an opposite expression in vitro and in patients' samples. The upregulation of miR-33b suppressed proliferatio…
Effect of Salt Concentration and Extremely Halophilic Archaea on the Safety and Quality Characteristics of Traditional Salted Anchovies
2017
Extremely halophilic archaea (EHA) might play an important role in salted fish production. So far, limited information has been available on the effect of EHA and salt concentration on the safety and quality characteristics of salted anchovies. Eight Halobacterium salinarum strains were isolated from different sea salt samples and subjected to phenotypic and genotypic characterization. The strains were then inoculated into fresh salt before addition to anchovies. A total of 18 experimental productions were performed. The inoculated trials showed the lowest counts of undesired microorganisms. In particular, salted anchovies produced with Hbt. salinarum H11 showed the lowest histamine concent…
Comparative Performance of Linear Multielectrode Probes and Single-Tip Electrodes for Intracortical Microstimulation and Single-Neuron Recording in M…
2017
Intracortical microstimulation (ICMS) is one of the most widely employed techniques for providing causal evidence of the relationship between neuronal activity and specific motor, perceptual, or even cognitive functions. In recent years, several new types of linear multielectrode silicon probes have been developed, allowing researchers to sample neuronal activity at different depths along the same cortical site simultaneously and with high spatial precision. Nevertheless, silicon multielectrode probes have been rarely employed for ICMS studies and, more importantly, it is unknown whether and to what extent they can be used for combined recording and stimulation experiments. Here, we address…
Toxicological implications of enzymatic control of reactive metabolites.
1990
Many foreign compounds are transformed into reactive metabolites, which may produce genotoxic effects by chemically altering critical biomolecules. Reactive metabolites are under the control of activating, inactivating and precursor sequestering enzymes. Such enzymes are under the long-term control of induction and repression, as well as the short-term control of post-translational modification and low molecular weight activators or inhibitors. In addition, the efficiency of these enzyme systems in preventing reactive metabolite-mediated toxicity is directed by their subcellular compartmentalization and isoenzymic multiplicity. Extrapolation from toxicological test systems to the human req…
Disentangling the effect of host genetics and gut microbiota on resistance to an intestinal parasite
2019
11 pages; International audience; Resistance to infection is a multifactorial trait, and recent work has suggested that the gut microbiota can also contribute to resistance. Here, we performed a fecal microbiota transplant to disentangle the contribution of the gut microbiota and host genetics as drivers of resistance to the intestinal nematode Heligmosomoides polygyrus. We transplanted the microbiota of a strain of mice (SJL), resistant to H. polygyrus, into a susceptible strain (CBA) and vice-versa. We predicted that if the microbiota shapes resistance to H. polygyrus, the FMT should reverse the pattern of resistance between the two host strains. The two host strains had different microbi…