Publications by authors named "Miguel Almeida"

Background: Antibiotic resistance of Enterobacterales poses a major challenge in the treatment of urinary tract infections (UTIs). In low- and middle-income countries (LMICs), standard microbiological (i.e.

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Cerebral Proliferative Angiopathy (CPA) is a rare brain vascular malformation, similar to Arteriovenous Malformations (AVM) but lacking of early venous drainage. Presentation and treatment outcomes were investigated, examining for morbidity, mortality and complications. A meta-analysis was conducted according to PRISMA guidelines.

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  • PIWI-interacting RNAs (piRNAs) are vital for maintaining genome integrity by silencing mobile genetic elements and are derived from long single-stranded precursors in various species.
  • The study explores how piRNA clusters form and adapt to genomic threats, presenting a roadmap of piRNA clusters in seven species, highlighting shared traits and differences.
  • Findings reveal transcriptional readthrough as a mechanism for piRNA production in mammals, especially in response to retroviral threats, and uncover dynamic piRNA clusters in human germ cells, enhancing understanding of piRNA biology across species.
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  • Stereotactic Brachytherapy Iodine-125 (SBT I-125) is a treatment studied for low-grade gliomas, but the results raise concerns about its safety and effectiveness.
  • A review of 20 studies showed that about 10% of patients had complications and 33% faced mortality, even though some patients were able to remain progression-free for 5 or 10 years.
  • The researchers suggest that more long-term studies and better research methods are needed to understand the true effects of this treatment.
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Background: Guillain-Barré syndrome (GBS) is a rare immune-mediated peripheral nerve disease often preceded by infections. Respiratory muscle weakness is a common complication in this population, leading to decreased vital capacity, weakened coughing ability, atelectasis, and pulmonary infections. Inspiratory muscle training (IMT) has been widely used to enhance inspiratory muscle strength and pulmonary function in various diseases; however, its application in GBS is unknown.

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East African cichlid fishes have diversified in an explosive fashion, but the (epi)genetic basis of the phenotypic diversity of these fishes remains largely unknown. Although transposable elements (TEs) have been associated with phenotypic variation in cichlids, little is known about their transcriptional activity and epigenetic silencing. Here, we describe dynamic patterns of TE expression in African cichlid gonads and during early development.

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Background: High-grade gliomas (HGGs) present a challenge in neuro-oncology, often necessitating surgical resection for optimal management. Ultrasound holds promise in achieving better gross total resection (GTR) and improving outcomes. This meta-analysis systematically evaluates literature providing robust evidence on the use of intraoperative ultrasonography (iUSG) in HGG resection.

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African cichlid fishes of the Cichlidae family are a group of teleosts important for aquaculture and research. A thriving research community is particularly interested in the cichlid radiations of the East African Great Lakes. One key goal is to pinpoint genetic variation underlying phenotypic diversification, but the lack of genetic tools has precluded thorough dissection of the genetic basis of relevant traits in cichlids.

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Social insects are models for studies of phenotypic plasticity. Ant queens and workers vary in fecundity and lifespan, which are enhanced and extended in queens. Yet, the regulatory mechanisms underlying this variation are not well understood.

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  • Urinary incontinence is a major issue after radical prostatectomy, and variations in surgeon experience may influence recovery rates.
  • A study on 405 patients showed good outcomes, with 87% pad-free and 51% experiencing no leaks at one year post-surgery, regardless of surgeon experience.
  • The findings suggest that continence recovery after Retzius-sparing robot-assisted radical prostatectomy is generally stable and not significantly affected by the number of surgeries performed by individual surgeons.
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Extragastrointestinal stromal tumors (EGISTs) are rare mesenchymal neoplasms, which develop in the retroperitoneum, mesentery, and omentum, lacking continuity to the stomach or intestines. Authors hereby present a female patient with a large heterogeneous abdominal mass as a case of an omental EGIST. A 46-year-old woman was referred to our hospital due to an insidious enlargement and colicky pain in the right iliac fossa.

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Background: Contact tracing is a fundamental intervention in public health. When systematically applied, it enables the breaking of chains of transmission, which is important for controlling COVID-19 transmission. In theoretically perfect contact tracing, all new cases should occur among quarantined individuals, and an epidemic should vanish.

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The development of rapid, reliable, and low-cost methods that enable discrimination among clinically relevant bacteria is crucial, with emphasis on those listed as WHO Global Priority 1 Critical Pathogens, such as carbapenem-resistant and carbapenem-resistant or ESBL-producing . To address this problem, we developed and validated a protocol of surface-enhanced Raman spectroscopy (SERS) with silver nanostars for the discrimination of and species, and their globally disseminated and clinically relevant antibiotic resistant clones. Isolates were characterized by mixing bacterial colonies with silver nanostars, followed by deposition on filter paper for SERS spectrum acquisition.

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Nematodes encompass more than 24,000 described species, which were discovered in almost every ecological habitat, and make up >80% of metazoan taxonomic diversity in soils. The last common ancestor of nematodes is believed to date back to ∼650-750 million years, generating a large and phylogenetically diverse group to be explored. However, for most species high-quality gene annotations are incomprehensive or missing.

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Retzius-sparing robot-assisted radical prostatectomy (RS-RARP) has emerged as a surgical option for patients with prostatic cancer in high-volume centers. The objective is to assess oncological and functional outcomes when implementing RS-RARP in a medium-volume center without previous experience of robotic surgery. This is a prospective observational single-center study.

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Introduction and objectives Long-term coronavirus disease 2019 (COVID-19) sequelae have become an increasing concern, with persistent dyspnoea and fatigue being the most common and long-lasting symptoms reported. The aim of this study was to evaluate the functional status and respiratory function three months after discharge from an inpatient rehabilitation program. Materials and methods This was a prospective study including post-ICU COVID-19 survivors consecutively admitted to an inpatient and multimodal rehabilitation program in a rehabilitation center.

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Introduction: The widespread use of imaging methods has led to an increased identification of asymptomatic Pancreatic Cystic Lymphangiomas (PCL), a rare entity for which available information is very limited.

Presentation Of Case: We present the case of an asymptomatic 61-year-old male, submitted to elective enucleation of a pancreatic head PCL at our institution. After four years of follow-up the patient is doing well and has no clinical or imaging signs of recurrence.

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LOTUS and Tudor domain containing proteins have critical roles in the germline. Proteins that contain these domains, such as Tejas/Tapas in Drosophila, help localize the Vasa helicase to the germ granules and facilitate piRNA-mediated transposon silencing. The homologous proteins in mammals, TDRD5 and TDRD7, are required during spermiogenesis.

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Background And Purpose: Several cases of Guillain-Barré Syndrome (GBS) associated with a COVID-19 infection have been recently reported. Rehabilitation might be a key player in the recovery of these highly complex patients however, results are yet unknown. This case report aimed to describe the effects of an inpatient rehabilitation program, with an interdisciplinary team approach, in a patient with GBS in the context of a COVID-19 infection.

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Transposable element (TE)-derived sequences are ubiquitous in most eukaryotic genomes known to date. Because their expression and mobility can lead to genomic instability, several pathways have evolved to control TEs. Nevertheless, TEs represent an important source of genomic novelty and are often co-opted for novel functions that are relevant for phenotypic divergence and adaptation.

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Purpose: To evaluate the impact of an inpatient multimodal and intensive rehabilitation program on neuromuscular, respiratory, and functional impairments of post-ICU COVID-19 patients.

Materials And Methods: Prospective study including post-ICU COVID-19 survivors consecutively admitted to a rehabilitation centre. Rehabilitation was conducted by an interdisciplinary team.

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In this study, nanoemulsions of essential oil from Ocimumgratissimum (Linn) (EO) were produced using low and high energy techniques using cashew gum (CG) as a co-surfactant. The main constituents of the EO were determined by Gas Chromatography coupled with Mass Spectrometry (GC-MS), and their presence in the EO and in the formulations verified by Fourier Transform Infrared Spectroscopy (FTIR) and UV-visible spectrophotometry was observed the encapsulation efficiency (EE%), with colloidal stability. Nuclear magnetic resonance (NMR) was used to study cashew gum.

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Industrial application of lycopene is limited due to its chemical instability and low bioavailability. This study proposes the development of fucan-coated acetylated cashew gum nanoparticles (NFGa) and acetylated cashew gum nanoparticles (NGa) for incorporation of the lycopene-rich extract from red guava (LEG). Size, polydispersity, zeta potential, nanoparticles concentration, encapsulation efficiency, transmission electron microscopy (TEM) and atomic force microscopy (AFM) were used to characterize nanoparticles.

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The development of robust and sensitive point-of-care testing platforms is necessary to improve patient care and outcomes. Surface-enhanced Raman scattering (SERS)-based immunosensors are especially suited for this purpose. Here, we present a highly sensitive and selective SERS immunoassay, demonstrating for example the detection of horseradish peroxidase (HRP), in a sandwich format.

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