Publications by authors named "Joana Batista"

Consumer priorities in healthy diets and lifestyle boosted the demand for nutritious and functional foods as well as plant-based ingredients. Avocado has become a food trend due to its nutritional and functional values, which in turn is increasing its consumption and production worldwide. Avocado edible portion has a high content of lipids, with the pulp and its oil being rich in monounsaturated fatty acids and essential omega - 3 and omega - 6 polyunsaturated fatty acids (PUFA).

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Almost one-third of epileptic patients fail to achieve seizure control through anti-epileptic drug administration. In the scarcity of completely controlling a patient's epilepsy, seizure prediction plays a significant role in clinical management and providing new therapeutic options such as warning or intervention devices. Seizure prediction algorithms aim to identify the preictal period that Electroencephalogram (EEG) signals can capture.

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Microalgae are recognized as a relevant source of bioactive compounds. Among these bioactive products, lipids, mainly glycolipids, have been shown to present immunomodulatory properties with the potential to mitigate chronic inflammation. This study aimed to evaluate the anti-inflammatory effect of polar lipids isolated from and .

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 Atrial fibrillation (AF) increases the risk of ischemic stroke (IS). We hypothesized that the functional form of platelet receptor glycoprotein (GP) VI, GPVI-dimer, which binds to collagen and fibrin causing platelet activation, is overexpressed in patients with AF who have not had a stroke.  A total of 75 inpatients with AF were recruited.

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Genetic studies of platelet reactivity (PR) phenotypes may identify novel antiplatelet drug targets. However, such studies have been limited by small sample sizes (n < 5000) because of the complexity of measuring PR. We trained a model to predict PR from complete blood count (CBC) scattergrams.

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Background: Integrase strand transfer inhibitor-based regimens are recommended for first-line therapy in human immunodeficiency virus type 2 (HIV-2). Nonetheless, dolutegravir (DTG) clinical trial data are lacking.

Methods: We conducted a phase 2, single-arm, open-label trial to evaluate the safety and efficacy of a triple therapy regimen that included DTG in persons with HIV-2 (PWHIV-2) in Portugal.

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The microalga is a popular food ingredient widely used in the industry, with an increasing market size and value. Currently, several edible strains of with different organoleptic characteristics are commercialized to meet consumer needs. This study aimed to compare the fatty acid (FA) and lipid profile of four commercialized strains of (C-Auto, C-Hetero, C-Honey, and C-White) using gas- and liquid-chromatography coupled to mass-spectrometry approaches, and to evaluate their antioxidant and anti-inflammatory properties.

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Article Synopsis
  • Many machine learning methods for predicting seizures from electroencephalograms lack transparency, leading to decreased trust from clinicians.
  • This study reviews the effectiveness of three different machine learning approaches (logistic regression, support vector machines, convolutional neural networks) in providing explainable predictions to help clinicians understand model decisions.
  • The findings suggest that while model transparency is important, it’s not the most critical factor; instead, enhancing understanding comes from developing systems that address signal dynamics and improve communication between data scientists and clinicians.
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Background: This work is aimed at improving the understanding of cardiometabolic syndrome pathophysiology and its relationship with thrombosis by generating a multi-omic disease signature.

Methods/results: We combined classic plasma biochemistry and plasma biomarkers with the transcriptional and epigenetic characterisation of cell types involved in thrombosis, obtained from two extreme phenotype groups (morbidly obese and lipodystrophy) and lean individuals to identify the molecular mechanisms at play, highlighting patterns of abnormal activation in innate immune phagocytic cells. Our analyses showed that extreme phenotype groups could be distinguished from lean individuals, and from each other, across all data layers.

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Objectives: Platelet activation underpins thrombus formation in ischemic stroke. The active, dimeric form of platelet receptor glycoprotein (GP) VI plays key roles by binding platelet ligands collagen and fibrin, leading to platelet activation. We investigated whether patients presenting with stroke expressed more GPVI on their platelet surface and had more active circulating platelets as measured by platelet P-selectin exposure.

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The interindividual variation in the functional response of platelets to activation by agonists is heritable. Genome-wide association studies (GWASs) of quantitative measures of platelet function have identified fewer than 20 distinctly associated variants, some with unknown mechanisms. Here, we report GWASs of pathway-specific functional responses to agonism by adenosine 5'-diphosphate, a glycoprotein VI-specific collagen mimetic, and thrombin receptor-agonist peptides, each specific to 1 of the G protein-coupled receptors PAR-1 and PAR-4, in subsets of 1562 individuals.

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Article Synopsis
  • - The accurate assessment of platelet function in blood donors is crucial for understanding thrombotic risks related to cardiovascular diseases, which could aid in tailoring antiplatelet drug treatments.
  • - Existing platelet function tests often face challenges in reliability, standardization, and analysis, prompting the development of the Platelet Phenomic Analysis (PPAnalysis) assay and open-source software for better characterization of platelet function.
  • - PPAnalysis has identified distinct subgroups of platelet phenotypes in healthy individuals, showing that platelet reactivity is more complex than just "high" or "low" responders, enhancing the ability to study platelet function differences and advance personalized medical approaches.
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Odonata can be sampled following different types of protocols. In Brazil, the most used protocol is the scanning in fixed areas method, where a 100-meter transect is delimited in one of the stream margins, subdivided into 20 segments measuring 5 meters. Despite being universally used, the methodological efficiency or limitations of this protocol for Odonata has never been tested.

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Erythrodiplax nataliae sp. nov. (5 males), collected in Vereda wetlands (a unique Neotropical savanna environment) in Mato Grosso, Brazil is described and illustrated.

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Article Synopsis
  • Whole-blood microfluidics and microspotting techniques were used to analyze platelet functions involved in thrombus formation among 94 healthy individuals, focusing on inter- and intra-subject variability.
  • Researchers evaluated 24 platelet parameters and identified key glycoproteins (GPs) and activation markers that influenced variations in platelet activation and thrombus characteristics.
  • The study revealed that inter-subject variability in thrombus formation was significantly higher than intra-subject variability, with certain genetic factors and specific glycoprotein pathways (like GPVI) playing critical roles in platelet function differences among individuals.
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Highlights: Breaking bad news is still deemed a difficult task by family physicians.Family physicians feel they need training in breaking bad news.The family physicians' attitude to this issue is different from what they would wish if they themselves had a life-threatening disease.

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Highlights: The attitudes of family physicians regarding breaking bad news are heterogeneous.Younger doctors seem to see the delivery of bad news more positively.This trend suggests that there will be a more open communication in the future.

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Article Synopsis
  • The study aims to connect non-coding genetic variants linked to disease risks with target genes to enhance precision medicine derived from GWAS (Genome-Wide Association Studies).
  • Using epigenomic data and analyzing promoter long-range interactions, the researchers identify regulatory functions for 75% of the non-coding variants associated with platelet traits.
  • The research shows that variants located in super enhancers significantly influence key platelet functions, validated through laboratory experiments and genome editing techniques.
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Introduction: Though typically found in adolescents, acne frequently affects the adult population. In Portugal, no representative studies about acne prevalence in greater populational areas are known. This study had the following objectives: calculate acne prevalence in primary healthcare patients; its characteristics, including risk factors for onset and worsening; collect information concerning selfmedication and/or prescribed treatment.

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Tuberculosis remains a worldwide public health concern. Atypical extrapulmonary presentations may delay the diagnosis and treatment. We present the case of an adult woman admitted to the emergency department with bowel obstruction.

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Objectives: To validate the content of signs, symptoms and diseases/health problems expressed in LIBRAS for people with deafness. Method: Methodological development study, which involved 36 people with deafness and three LIBRAS specialists. The study was conducted in three stages: investigation of the signs, symptoms and diseases/health problems, referred to by people with deafness, reported in a questionnaire; video recordings of how people with deafness express, through LIBRA, the signs, symptoms and diseases/health problems; and validation of the contents of the recordings of the expressions by LIBRAS specialists.

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Community assembly theory is founded on the premise that the relative importance of local environmental processes and dispersal shapes the compositional structure of metacommunities. The species sorting model predicts that assemblages are dominated by the environmental filtering of species that are readily able to disperse to suitable sites. We propose an ecophysiological hypothesis (EH) for the mechanism underlying the organization of species-sorting odonate metacommunities based on the interplay of thermoregulation, body size and the degree of sunlight availability in small-to-medium tropical streams.

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Transformations of natural landscapes and their biodiversity have become increasingly dramatic and intense, creating a demand for rapid and inexpensive methods to assess and monitor ecosystems, especially the most vulnerable ones, such as aquatic systems. The speed with which surveys can collect, identify, and describe ecological patterns is much slower than that of the loss of biodiversity. Thus, there is a tendency for higher-level taxonomic identification to be used, a practice that is justified by factors such as the cost-benefit ratio, and the lack of taxonomists and reliable information on species distributions and diversity.

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Article Synopsis
  • Mondor's disease is a rare condition involving inflammation of veins in the breast and chest wall, typically benign but rarely linked to cancer.
  • A 32-year-old breastfeeding woman presented with left breast pain and was initially treated for mastitis without improvement; her exam revealed an enlarged breast and a painful vein.
  • After ultrasound confirmation of a dilated vein, she received therapy that improved her pain, and follow-up showed healing four weeks later.
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Purpose: The present a novel adenocarcinoma model in athymic mice.

Methods: Seven athymic mice were used. Colon diversion and distal fistula were made.

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