171,432 results match your criteria: "Portugal; IBB-Institute for Bioengineering and Biosciences[Affiliation]"

Introduction: Complete radical resection is crucial for successfully treating thymic carcinomas. However, when the invasion of the great vessels or the heart in Masaoka III and IV stages occurs, the management poses more challenges. The R0 resection often requires neoadjuvant treatment.

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Jejunal Artery Aneurysm Exclusion With Immediate Vascular Reconstruction: A Case Report.

Port J Card Thorac Vasc Surg

January 2025

Angiology and Vascular Surgery, Unidade Local de Saúde de São João; Surgery and Physiology, Faculdade de Medicina da Universidade do Porto, Portugal.

A 44 year-old previously healthy woman presented a persistent epigastric pain. Computed tomography revealed a saccular aneurysm with a diameter of 25x20 mm in the first jejunal artery and also a stenosis in the celiac trunk associated with median arcuate ligament syndrome, turning the hepatic perfusion dependent of the gastroduodenal artery flow. Through a midline laparotomy, celiac axis was exposed, and median arcuate ligament released for median arcuate ligament syndrome treatment.

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Advances in Diagnosis, Treatment and Prognostic in Aortoiliac Occlusive Disease - A Narrative Review.

Port J Card Thorac Vasc Surg

January 2025

Department of Biomedicine - Unit of Anatomy, Faculty of Medicine, University of Porto; RISE@Health, Porto, Portugal.

Background: Aortoiliac disease (AID) is a variant of peripheral artery disease involving the infrarenal aorta and iliac arteries. Similar to other arterial diseases, aortoiliac disease obstructs blood flow through narrowed lumens or by embolization of plaques. AID, when symptomatic, may present with a triad of claudication, impotence, and absence of femoral pulses, a triad also referred as Leriche Syndrome (LS).

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Imaging Red Flags In A Symptomatic Abdominal Aortic Aneurysm.

Port J Card Thorac Vasc Surg

November 2024

Angiologia e Cirurgia Vascular, ULS de São João, Porto, Portugal; UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal.

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Symptomatic Carotid Web: a Rare Cause of Stroke.

Port J Card Thorac Vasc Surg

January 2025

Department of Angiology and Vascular Surgery, ULS Santo António, Porto, Portugal.

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Otherwise, inoperable. The role of ECMO in thoracic surgery - focus on the mediastinum.

Port J Card Thorac Vasc Surg

January 2025

Thoracic surgeon, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy.

The use of extracorporeal membrane oxygenation (ECMO) in surgery is expanding as the medical community started adopting it, with good results, for procedures with high risk of respiratory and hemodynamic instability. This technique provided the possibility to reduce the number of patients previously considered inoperable because of these limitations. Thymic epithelial tumors (TETs) are rare neoplastic mediastinal lesions, with a reported incidence of 0.

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Acknowledging Our Reviewers.

Port J Card Thorac Vasc Surg

January 2025

Angiology and Vascular Surgery, Centro Hospitalar Universitário de São João, Porto; Surgery and Physiology, Faculdade de Medicina da Universidade do Porto, Portugal.

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Mares with endometrosis exhibit histological changes not only in the endometrium but also in the myometrium that suggest possible functional impairment. The molecular background of these changes is not well understood. We hypothesize that the transcriptomic profile of the mare myometrium varies depending on the degree of endometrosis in mares.

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A novel variant in the ABCA1 gene for Tangier Disease with diffuse histiocytosis of bone marrow.

J Clin Lipidol

December 2024

Internal Medicine Department, Coimbra's Healthcare Integrated Delivery System, Praceta Professor Mota Pinto, 3004-561, Coimbra, Portugal.

Tangier disease is an extremely rare autosomal recessive monogenic disorder caused by mutations in the ATP binding cassette transporter A1 gene (ABCA1). It is characterized by severe deficiency or absence of high-density lipoprotein cholesterol (HDL-C) and apolipoprotein A-1 (ApoA1), with highly variable clinical presentations depending on cholesterol accumulation in macrophages across different tissues. We report a case of a 47-year-old man with very low HDL-C and very high triglyceride levels, initially attributed to the patient's metabolic syndrome, alcohol abuse, and splenomegaly.

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Objective: This study explored and compared stakeholder perspectives on enhancements to cervical cancer screening for vulnerable women across seven European countries.

Design: In a series of Collaborative User Boards, stakeholders were invited to collaborate on identifying facilitators to improve cervical cancer screening.

Setting: This study was part of the CBIG-SCREEN project which is funded by the European Union and targets disparities in cervical cancer screening for vulnerable women (www.

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Advances in IgY antibody dosage form design and delivery strategies: Current status and future perspective.

Int J Biol Macromol

January 2025

School of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, China; Department of Biology, Centre of Molecular and Environmental Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada. Electronic address:

Immunoglobulin Y (IgY), a unique type of antibody found in birds, is attracting increasing attention for a broad range of biomedical applications. Rational IgY protection, dosage form design, and delivery are highly essential to transform functional IgY antibodies into desired IgY products for therapeutic and prophylactic administration. Although progress has been made in this field, it remains in the early stages, highlighting the fundamental research and development needed in this aspect of IgY technology.

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Parallel Stenting for Acute Paravisceral Aortic Thrombosis.

Eur J Vasc Endovasc Surg

January 2025

Hospital de Santa Marta, Unidade Local de Saúde São José, Lisbon, Portugal; NOVA Medical School|Faculdade de Ciências Médicas, NMS|FCM, Universidade Nova de Lisboa, Lisbon, Portugal; Hospital CUF Tejo, Lisbon, Portugal.

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Airborne particulate matter inhalation bioaccessibility: A review of methodological aspects.

Chem Biol Interact

January 2025

Department of Environment and Planning, Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, Portugal. Electronic address:

Research has consistently linked exposure to particulate matter (PM) with adverse health outcomes, including cardiovascular and pulmonary morbidity and mortality. Understanding the mechanisms by which PM leads to these effects on human health is crucial for developing effective mitigation strategies. One aspect of PM research that has gained increased attention in the past few years is the bioaccessibility of inhaled PM-bound pollutants that have potential to cause adverse health effects.

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Mechanosynthesis of fluorescent magnetic alumina for latent fingerprint detection.

J Colloid Interface Sci

January 2025

iBB-Institute for Bioengineering and Biosciences and i4HB-Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; Bioengineering Department, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.

A green approach towards the synthesis of both conventional and magnetic fluorescent powders for revealing latent fingerprints (FPs) is disclosed. The powders formulation is based on a biodegradable matrix and fluorescent dyes extracted from commercial felt-tip markers. Two classes of powders are described: one with a fluorescent component, and other with both fluorescent and magnetic components.

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Incidental nanoparticle characterisation in industrial settings to support risk assessment modelling.

Int J Hyg Environ Health

January 2025

Institute of Environmental Assessment and Water Research - Spanish Research council (IDAEA-CSIC), Barcelona, 08034, Spain; Spanish Ministry of Ecological Transition, Pollution Prevention Unit, Pza. San Juan de la Cruz 10, 28071, Madrid, Spain.

Research on nanoparticle (NP) release and potential exposure can be assessed through experimental field campaigns, laboratory simulations, and prediction models. However, risk assessment models are typically designed for manufactured NP (MNP) and have not been adapted for incidental NP (INP) properties. A notable research gap is identifying NP sources and their chemical, physical, and toxicological properties, especially in real-world settings.

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Public value and digital health: The example of guiding values in the national digital health strategy of France.

Int J Med Inform

January 2025

ISCTE-Instituto Universitário de Lisboa, Lisbon, Portugal; Universidade da Beira Interior Faculdade de Ciências da Saúde, Covilha, Portugal.

Introduction: In the WHO European Region, 44 of 53 reporting Member States (MS) have a national digital health strategy (NDHS) or policy. Their formulation is heterogenous and evolving and should best reflect public common interest. This research aims to explore how a public value approach improves the relevance of digital health policies and services, increasing their capacity to better serve the diverse range of societal interests.

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Despite its low incidence in Europe, rubella's immune status is still routinely assessed using commercial immunoassays. However, some discrepancies have been observed between these tests and the Immunoblot. The main objective of this study is to evaluate, by a commercial immunoblot, the immune status of a female population that had previously presented negative, low-positive, or equivocal rubella IgG with a commercial immunoassay.

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Endocan as a marker of endotheliitis in COVID-19 patients: modulation by veno-venous extracorporeal membrane oxygenation, arterial hypertension and previous treatment with renin-angiotensin-aldosterone system inhibitors.

Inflamm Res

January 2025

Departamento de Biomedicina - Unidade de Farmacologia e Terapêutica, Faculdade de Medicina da Universidade do Porto (FMUP), Rua Dr. Plácido da Costa, S/N, Edifício Poente, Piso 3, 4200-450, Porto, Portugal.

Background And Aims: Endocan has been scarcely explored in COVID-19, especially regarding its modulation by veno-venous extracorporeal membrane oxygenation (VV-ECMO), hypertension or previous renin-angiotensin-aldosterone system (RAAS) inhibitors treatment. We compared endocan and other endotheliitis markers in hospitalized COVID-19 patients and assessed their modulation by VV-ECMO, hypertension and previous RAAS inhibitors treatment.

Material And Methods: Serum endocan, intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1) and E-selectin were measured in "severe" (n = 27), "critically ill" (n = 17) and "critically ill on VV-ECMO" (n = 17) COVID-19 patients at admission, days 3-4, 5-8 and weekly thereafter, and in controls (n = 23) at a single time point.

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Objectives: We aim to investigate cognitive phenotype distribution and MRI correlates across pediatric-, elderly-, and adult-onset MS patients as a function of disease duration.

Methods: In this cross-sectional study, we enrolled 1262 MS patients and 238 healthy controls, with neurological and cognitive assessments. A subset of 222 MS patients and 92 controls underwent 3T-MRI scan for brain atrophy and lesion analysis.

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A Compendium of Magnetic Nanoparticle Essentials: A Comprehensive Guide for Beginners and Experts.

Pharmaceutics

January 2025

Physics Department and i3N, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.

Magnetic nanoparticles (MNPs) are advanced materials that combine the unique properties of magnetic materials and nanoscale dimensions, enabling a wide range of applications in biomedicine, environmental science, and information technology. This review provides a comprehensive yet accessible introduction to the fundamental principles, characterization techniques, and diverse applications of MNPs, with a focus on their nanoscale magnetic properties, such as superparamagnetism, single-domain behavior, and surface effects. It also delves into their classification and the critical role of parameters like magnetic anisotropy and blocking temperature.

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: is the leading cause of chronic gastritis, peptic ulcer, gastric adenocarcinoma, and mucosal-associated lymphoma. Due to the emerging problems with antibiotic treatment against in clinical practice, vaccination has gained more interest. Oral immunization is considered a promising approach for preventing initial colonization of this bacterium in the gastrointestinal tract, establishing a first line of defense at gastric mucosal surfaces.

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