2,343 results match your criteria: "Institute Gonçalo Moniz[Affiliation]"

Type 2 inflammation: a Portuguese consensus using Web-Delphi and decision conferencing (INFLAT2-PT).

Expert Rev Clin Immunol

January 2025

CEGIST-Centro de Estudos de Gestão, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal.

Objectives: Atopic/allergic diseases impose a growing burden on public health, affecting millions of patients worldwide. The main objective of this study was to develop a national expert consensus on relevant clinical questions related to type 2 inflammation.

Methods: We conducted: a comprehensive literature review with a qualitative analysis to identify the most repeated themes on the overlap of conditions; a modified 3-round Web-Delphi (or e-Delphi); and a final online decision conference.

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Mild cognitive impairment, dementia and osteoporosis are common diseases of ageing and, with the increasingly ageing global population, are increasing in prevalence. These conditions are closely associated, with shared risk factors, common underlying biological mechanisms and potential direct causal pathways. In this review, the epidemiological and mechanistic links between mild cognitive impairment, dementia and skeletal health are explored.

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Concurrent stress modulates the acute and post-acute effects of psilocybin in a sex-dependent manner.

Neuropharmacology

December 2024

Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, Edifício Egas Moniz, 1649-028, Lisboa, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, Edifício Egas Moniz, 1649-028, Lisboa, Portugal; Gulbenkian Institute for Molecular Medicine, Avenida Professor Egas Moniz, 1649-035 Lisboa, Portugal. Electronic address:

Article Synopsis
  • There is growing interest in using psychedelics like psilocybin to treat hard-to-manage psychiatric disorders, but little is known about how the experiences they create affect mood afterward.
  • In experiments with mice, it was found that psilocybin increased head-twitch responses more in females than in males, highlighting a sex difference in its effects.
  • Stress exposure during or after taking psilocybin impacted anxiety-like behavior in males, blocking its calming effects, while females only experienced a partial effect, suggesting that both sex and the context of the experience are important in understanding the drug's impact.
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Objective: This study aims to adapt and provide psychometric support for the validation of version B of the Edinburgh Cognitive and Behavioural ALS Screen (ECAS) for the Portuguese population, addressing the need for consistent cognitive evaluations in amyotrophic lateral sclerosis (ALS). A second culturally adapted ECAS screen facilitates the accurate characterization of ALS progression, mitigates learning effects, and supports tailored care management.

Methods: The adaptation process included forward-backward translation, cultural adaptation, and cognitive debriefing on a prospective sample of 193 ALS patients and 106 controls.

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Ptosis in human immunodeficiency virus-infected patients under long-term antiretroviral treatment.

Clin Neurol Neurosurg

December 2024

Department of Neurosciences and Mental Health, Unidade Local de Saúde de Santa Maria, Lisbon, Portugal; Faculdade de Medicina-Instituto de Medicina Molecular, Centro de Estudos Egas Moniz, Universidade de Lisboa, Lisbon, Portugal.

Objective: To present cases of ptosis in HIV-1 patients on long-term antiretroviral therapy (ART) and review the existing literature.

Methods: Five HIV-1-positive patients with slowly progressive bilateral ptosis underwent a comprehensive diagnostic evaluation, including imaging studies, neurophysiological testing, muscle biopsy, and genetic analysis. A literature review was conducted.

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Immunodominant Molecules for the Immunodiagnosis of Strongyloides stercoralis Infection.

Diagn Microbiol Infect Dis

December 2024

Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal da Bahia, Brazil. Electronic address:

Article Synopsis
  • The study focused on identifying key immune molecules for diagnosing S. stercoralis infections using serum samples tested with specific antigens (AgS and AgM).
  • Results from IgG-ELISA showed decent sensitivity (82.3 to 85.3%) and varying specificity (60.0 to 93.3%), but some cross-reactivity with other helminth infections was noted.
  • A specific 140 kDa protein from AgS demonstrated perfect sensitivity and specificity without cross-reactivity, indicating its potential for creating reliable immunodiagnostic tests for strongyloidiasis.
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A thorough understanding of surgical anatomy is essential for preparing and training medical students to become competent and skilled surgeons. While Virtual Reality (VR) has shown to be a suitable interaction paradigm for surgical training, traditional anatomical VR models often rely on simple labels and arrows pointing to relevant landmarks. Yet, studies have indicated that such visual settings could benefit from knowledge maps as such representations explicitly illustrate the conceptual connections between anatomical landmarks.

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Brain metastases (BM) are frequently found in cancer patients and, though their precise incidence is difficult to estimate, there is evidence for a correlation between BM and specific primary cancers, such as lung, breast, and skin (melanoma). Among all these, breast cancer is the most frequently diagnosed among women and, in this case, BM cause a critical reduction of the overall survival (OS), especially in triple negative breast cancer (TNBC) patients. The main challenge of BM treatment is the impermeable nature of the blood-brain barrier (BBB), which shields the central nervous systems (CNS) from chemotherapeutic drugs.

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Evaluating carbon removal: Integrating technical potential with environmental, social, governance criteria, and sequestration permanence.

iScience

December 2024

KU Leuven, ECOOM, Department of Managerial Economics, Strategy and Innovation, Faculty of Economics and Business, Naamsestraat 69, BE-3000 Leuven, Belgium.

Climate modeling suggests that achieving international climate goals requires a reduction in current CO emissions by over 90%, with any remaining emissions to be addressed through carbon dioxide removal (CDR) solutions. Sixteen CDR strategies are evaluated by integrating technical potential, environmental, social, and governance (ESG) criteria, along with sequestration permanence. This evaluation, conducted by ENGIE's scientific council using an interdisciplinary Delphi panel methodology, proposes a "quality" measure for each technology.

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Objective: Genetic associations and blockade of the interleukin-23/IL-17 axis with monoclonal antibodies support a role for this pathway in psoriatic arthritis (PsA). This study examines the requirement of IL-23 for IL-17 production, and the role of the metabolic microenvironment in the expansion of Th-derived cells in PsA.

Methods: PsA patient synovial fluid or peripheral blood Th cell frequencies were evaluated by flow cytometry using CCR6, CD161 and T-bet as phenotypic markers, and the cytokines IFN-γ, GM-CSF and IL-17 assessed by flow cytometry and ELISA.

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Thiadiazines are heterocyclic compounds known for some pharmacological activities. However, the ability of these compounds and their derivatives to act as antibacterial agents and inhibitors of the efflux system in resistant bacteria remains unknown. This study aims to evaluate the antibacterial and NorA efflux pump inhibitory activities of thiadiazine-derived compounds (IJ14, IJ15, IJ16, IJ17, IJ18, IJ19, and IJ20) against the Staphylococcus aureus 1199B strain.

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Postingestive nutrient stimulation conditions food preferences through striatal dopamine and may be associated with blunted brain responses in obesity. In a cross-sectional study, we tested flavor-nutrient conditioning (FNC) with maltodextrin-enriched yogurt, with maltodextrin previously optimized for concentration and dextrose equivalents (n = 57), and to mask texture cues (n = 102). After conditioning, healthy volunteers (n = 52) increased preference for maltodextrin-paired (+102 kcal, CS+), relative to control (+1.

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Background: Since the introduction of the SLICC criteria in 2012, biopsy-proven lupus nephritis (LN) has been the only independent diagnostic criterion for systemic lupus erythematosus (SLE). This was reaffirmed by the EULAR/ACR in 2019, emphasizing the importance of renal biopsy in LN. However, the current classification lacks specific histopathological criteria for defining LN.

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The present study investigates VKINE, a bioactive proteolytic fragment of the proteoglycan VCAN, as a novel and significant element in the tumor extracellular matrix (ECM). Although VKINE has been recognized for its immunomodulatory potential in certain tumor types, its impact on ECM degradation and prognostic implications remains poorly understood. : This study aimed to evaluate VCAN proteolysis and its association with ADAMTS enzymes involved in extracellular matrix remodeling in spontaneous canine mammary gland cancer.

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Computational Study on the Proton Reduction Potential of Co, Rh, and Ir Molecular Electrocatalysts for the Hydrogen Evolution Reaction.

ACS Omega

December 2024

MolMod-CS-Instituto de Química, Universidade Federal Fluminense, Campos de Valonginho s/n, Centro, Niterói, Rio de Janeiro 24020-14, Brazil.

In this study, comprehensive density functional theory calculations were conducted to investigate the molecular mechanism of electrocatalytic proton reduction using group 9 transition metal bpaqH (2-(bis(pyridin-2-ylmethyl)amino)--(quinolin-8-yl)acetamide) complexes. The goal was to explore how variations in the structural and electronic properties among the three metal centers might impact the catalytic activity. All three metal complexes were observed to share a similar mechanism, primarily characterized by three key steps: heterolytic cleavage of H (HEP), reduction protonation (RPP), and ligand-centered protonation (LCP).

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Protocol for whole-mount preparation, clearing, and visualization of the adult zebrafish spinal cord structures.

STAR Protoc

December 2024

Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal; Instituto de Histologia e Biologia do Desenvolvimento, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal; GIMM - Gulbenkian Institute for Molecular Medicina, Avenida Prof. Egas Moniz, 1649-035 Lisboa, Portugal. Electronic address:

The vascular repair, a pivotal element of the spinal cord (SC) injury response, has been notably neglected in zebrafish research. Here, we detail the extraction and dissection of whole-mount zebrafish SCs and the optimized whole-mount immunofluorescence staining and clearing protocols for the visualization of SC structures, such as the vascular network. Additional downstream applications of these samples, from gelatin embedding to cryosectioning and tissue staining, can be done after clearing reversion and are also described in this work.

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Exposure assessment of the European adult population to deoxynivalenol - Results from the HBM4EU Aligned Studies.

Food Res Int

December 2024

Department of Food and Nutrition, National Institute of Health Dr. Ricardo Jorge, Avenida Padre Cruz, 1649-016 Lisbon, Portugal; Centre for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193 Aveiro, Portugal.

Article Synopsis
  • Mycotoxins, like Deoxynivalenol (DON), are naturally occurring toxins from fungi linked to health issues, prompting public health concern, especially in Europe.
  • A study analyzed urinary DON levels from 1270 participants across six countries to assess exposure and identify key factors influencing it, finding notable variances based on demographics and lifestyle.
  • About 12.3% of participants had DON levels exceeding the recommended safe limit, highlighting significant exposure among certain groups and contributing valuable data on mycotoxin risks in Europe.
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Metal (Au, Pt, Pd, Ni) Bis(dithiolene) complexes as dual-action agents combating cancer and trypanosomatid infections.

J Inorg Biochem

November 2024

Centro de Ciências e Tecnologias Nucleares and Departamento de Engenharia e Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal.

Cancer and infection diseases pose severe threats to public health worldwide stressing the need for more effective and efficient treatments. Thus, the search for broad-spectrum activity drugs seems justifiable and urgent. Herein, we investigate the anticancer and antitrypanosomatid (anti-Trypanosoma cruzi) activities of eight monoanionic metal bis(dithiolene) complexes, [PhP][M(R-thiazdt)] with M = Au, Pt, Pd, Ni, containing N-alkyl-1,3-thiazoline-2-thione dithiolene ligands (R-thiazdt) with different alkyl groups (R = Et, tBu).

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The inflammatory microenvironment of the lung at the time of infection governs innate control of SARS-CoV-2 replication.

Sci Immunol

December 2024

Inflammation and Innate Immunity Unit, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA.

Severity of COVID-19 is affected by multiple factors; however, it is not understood how the inflammatory milieu of the lung at the time of SARS-CoV-2 exposure affects the control of viral replication. Here, we demonstrate that immune events in the mouse lung closely preceding SARS-CoV-2 infection affect viral control and identify innate immune pathways that limit viral replication. Pulmonary inflammatory stimuli including resolved, antecedent respiratory infections with or influenza, ongoing pulmonary infection, ovalbumin/alum-induced asthma, or airway administration of TLR ligands and recombinant cytokines all establish an antiviral state in the lung that restricts SARS-CoV-2 replication.

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Background: Subjective Cognitive Decline (SCD) is recognized as a risk stage for future cognitive impairment and dementia. The criteria for SCD include normal performance on neuropsychological testing; however, there is a lack of consensus regarding standard score cut-offs for neuropsychological tests to define cognitive impairment and to differentiate between SCD and Mild Cognitive Impairment (MCI). This study aimed to assess the frequency of SCD diagnosis using various neuropsychological definitions of cognitive normality and to characterize the sociodemographic and neuropsychological features of SCD patients diagnosed under these criteria.

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Article Synopsis
  • * In the study, 689 participants were categorized into three groups based on migraine resistance, with significant differences in the number and type of comorbidities found among them.
  • * The findings suggest that higher comorbidity rates may contribute to the worsening of migraines, potentially making them harder to treat over time.
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CIDACS' efforts towards an inclusive and dialogic data governance in Brazil: a focused literature review.

Int J Popul Data Sci

December 2024

Centre for Data and Knowledge Integration for Health (CIDACS), Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Salvador, Bahia.

The Centre for Data and Knowledge Integration for Health's (CIDACS) data governance efforts have primarily focused on legal, technical and operational procedures to provide high-quality linked administrative data for investigations on social determinants of health and the impact of social protection policies in low-income and vulnerable populations throughout Brazil. The Centre is moving towards an updated data governance model that incorporates the participation of, and consultation and dialogue with, data stakeholders, including groups covered by our linked data. To this end, this paper presents our procedures and challenges, outlining relevant considerations based on a focused literature review that aims to support the inclusion of societal participation in our revised data governance approach, which should be considered an ongoing process.

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Low friction hydrogel with diclofenac eluting ability for dry eye therapeutic contact lenses.

Methods

November 2024

Centro de Química Estrutural (CQE), Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal; Egas Moniz Center for Interdisciplinary Research (CiiEM), Egas Moniz School of Health & Science, 2829-511 Caparica, Almada, Portugal. Electronic address:

When placed in the eye, contact lenses (CLs) disturb the tear fluid and affect the natural tribological behaviour of the eye. The disruption in the contact mechanics between the ocular tissues can increase frictional shear stress and ocular dryness, causing discomfort. Ultimately, continuous CLs wear can trigger inflammation which is particularly critical for people suffering from dry eye.

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