47 results match your criteria: "NOVA Medical School (NMS)[Affiliation]"

Article Synopsis
  • In a study on children with Phenylketonuria (PKU), casein glycomacropeptide (GMP) was compared to phenylalanine-free amino acids (AA) as a protein substitute, focusing on digestion and overall health effects.
  • Results showed that GMP significantly improved gastrointestinal symptoms like stomach pain and bloating, although it did not have a major impact on other health markers like renal function or oxidative stress.
  • However, GMP's higher phenylalanine content poses challenges for use as a sole protein source in PKU kids due to their low tolerance for phenylalanine.
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Proteomic Profile of Endometrial Cancer: A Scoping Review.

Biology (Basel)

August 2024

Univ Coimbra, Coimbra Institute for Clinical and Biomedical Research (iCBR) Area of Environment Genetics and Oncobiology (CIMAGO), Institute of Biophysics, Faculty of Medicine, 3000-548 Coimbra, Portugal.

Proteomics can be a robust tool in protein identification and regulation, allowing the discovery of potential biomarkers. In clinical practice, the management of endometrial cancer can be challenging. Thus, identifying promising markers could be beneficial, helping both in diagnosis and prognostic stratification, even predicting the response to therapy.

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Article Synopsis
  • A 2011 survey indicated that blood phenylalanine (Phe) control in patients with phenylketonuria (PKU) worsens with age, leading to new European PKU guidelines for blood Phe levels in 2017.
  • The study involved nine centers across Europe and Turkey, collecting data from 1323 patients with varying PKU severity to evaluate blood Phe control from 2012 to 2018.
  • Results showed that younger patients had better blood Phe control, with classical PKU patients having significantly higher mean blood Phe levels compared to mild PKU and hyperphenylalaninemia (HPA) patients, while female patients generally had a higher percentage of
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: Low fibrinogen levels are associated with an increased risk of perioperative bleeding. However, there is an ongoing debate over the ideal treatment threshold, the benefits of prophylactic supplementation with fibrinogen concentrate, and the best source of fibrinogen. While fibrinogen concentrate supplementation is being widely used to treat bleeding related to acquired haemostatic deficiencies, there is a lack of evidence regarding its dosage, effectiveness, and safety.

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Influence of Aldehyde Dehydrogenase Inhibition on Stemness of Endometrial Cancer Stem Cells.

Cancers (Basel)

May 2024

Univ Coimbra, Coimbra Institute for Clinical and Biomedical Research (iCBR) Area of Environment Genetics and Oncobiology (CIMAGO), Institute of Biophysics, Faculty of Medicine, 3000-548 Coimbra, Portugal.

Article Synopsis
  • - Endometrial cancer is a common gynecological cancer that can be difficult to treat, especially in cases where the disease recurs or spreads; cancer stem cells (CSCs) are linked to these challenges, particularly through their high activity of the enzyme aldehyde dehydrogenase (ALDH).
  • - The study investigated the effects of inhibiting ALDH in endometrial CSCs using a specific compound (DEAB), which was shown to significantly reduce ALDH activity, inhibit cell growth capabilities, and alter protein expression profiles related to cancer progression.
  • - Findings suggest that targeting ALDH and related proteins (like ALDH18A1, SdhA, and UBAP2L) could provide new therapeutic strategies
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Locally advanced breast cancer poses significant challenges to the multidisciplinary team, in particular with hormone receptor (HR) positive, HER2-negative tumors that classically yield lower pathological complete responses with chemotherapy. The increasingly significant use of CDK 4/6 inhibitors (CDK4/6i) plus endocrine therapy (ET) in different breast cancer settings has led to clinical trials focusing on this strategy as a primary treatment, with promising results. The impact of the microbiota on cancer, and vice-versa, is an emerging topic in oncology.

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Edible flowers are regaining interest among both the scientific community and the general population, not only for their appealing sensorial characteristics but also from the growing evidence about their health benefits. Among edible flowers, those that contain anthocyanins are among the most consumed worldwide. However, little is known regarding the bioaccessibility and absorption of their bioactive compounds upon ingestion.

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Identification of Germline and Somatic Pathway Gene Alterations in Patients with Malignant Struma Ovarii, Cleft Palate and Thyroid Cancer.

Int J Mol Sci

February 2024

Unidade de Investigação em Patobiologia Molecular (UIPM), Instituto Português de Oncologia de Lisboa Francisco Gentil (IPOLFG), 1099-023 Lisboa, Portugal.

Germline variants in the FOXE1 transcription factor have been associated with thyroid ectopy, cleft palate (CP) and thyroid cancer (TC). Here, we aimed to clarify the role of in Portuguese families (F1 and F2) with members diagnosed with malignant struma ovarii (MSO), an ovarian teratoma with ectopic malignant thyroid tissue, papillary TC (PTC) and CP. Two rare germline heterozygous variants in the promoter were identified: F1) c.

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Breast cancer is a significant global health concern, contributing to substantial morbidity and mortality among women. Hormone receptor-positive (HR+)/HER2-negative (HER2-) breast cancer constitutes a considerable proportion of cases, and significant advancements have been made in its management. CDK4/6 inhibitors (CDK4/6is) are a new targeted therapy that has demonstrated efficacy in adjuvant, advanced and metastatic settings.

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Cardiovascular diseases are the main cause of mortality worldwide. Patients with phenylketonuria (PKU) may be at increased cardiovascular risk. This review provides an overview of clinical and metabolic cardiovascular risk factors, explores the connections between body composition (including fat mass and ectopic fat) and cardiovascular risk, and examines various methods for evaluating body composition.

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In phenylketonuria (PKU), an important component of the UK dietary management system is a 50 mg phenylalanine (Phe)/1 g protein exchange system used to allocate the Phe/natural protein intakes according to individual patient tolerance. Any foods containing protein ≤ 0.5 g/100 g or fruits/vegetables containing Phe ≤ 75 mg/100 g are allowed without measurement or limit.

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Introduction: Noncommunicable diseases and obesity are between the major health threat due to consumption of unhealthy foods and limited time spent on physical activities, a situation of particular concern among children. Since children spend most of their time at school, this study intends to investigate the effect of a school intervention program, which combines recreational football and nutrition education, on body composition, physical fitness, physical activity, blood pressure and heart rate, eating behaviours, nutritional knowledge, and psychological status in elementary school children.

Methods: A total of 67 children, between 7 and 10 years old, were allocated into three groups: the Football Group (FG) which held 2 weekly sessions of 60 min of recreational football, the Nutrition and Football Group (NFG) which held 2 sessions per week of 60 min of recreational football plus 60 min of nutritional education and the Control Group (CG) which maintained its usual curriculum.

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Ultrathin DSAEK versus DMEK - Review of systematic reviews.

Eur J Ophthalmol

July 2024

Cornea and Refractive Surgery Unit, Instituto de Microcirugía Ocular (IMO) Barcelona Grupo Miranza, Barcelona, Spain.

The efficacy and safety of Descemet's membrane endothelial keratoplasty (DMEK) and ultrathin Descemet stripping automated endothelial keratoplasty (UT-DSAEK) have been recently compared in several systematic reviews (SRs). The aim of this study was to assess the evidence quality of such SRs, in order to obtain a scientifically rigorous comparison between the two techniques. We performed a systematic review of SRs and meta-analyses comparing the efficacy and safety between UT-DSAEK and DMEK up to 24th March 2023, using 3 electronic databases (PubMed, Cochrane Library, Google Scholar) plus manual reference search.

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The recognition that the gut microbiota of obese children differs from lean children has grown, and some studies suggest that physical activity positively influences the gut microbiota. This systematic review explores the changes in the gut microbiota composition of obese and non-obese children and adolescents and provides an understanding of the effects of physical activity interventions in modulating their microbiota. The PRISMA protocol was used across PubMed, Scopus, and Web of Science.

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mRNA technology has demonstrated potential for use as an effective cancer immunotherapy. However, inefficient in vivo mRNA delivery and the requirements for immune co-stimulation present major hurdles to achieving anti-tumour therapeutic efficacy. Therefore, we used a cationic hyper-branched cyclodextrin-based polymer to increase mRNA delivery in both in vitro and in vivo melanoma cancer.

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Effects of Physical Activity and Nutrition Education on the Gut Microbiota in Overweight and Obese Children.

Children (Basel)

July 2023

Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal.

Childhood obesity continues to represent a growing challenge, and it has been associated with gut microbiota dysbiosis. This study examines the gut microbiota composition in overweight and obese school children and assesses whether a 12-week multidisciplinary intervention can induce changes in the gut microbiota. The intervention, which combined recreational football and nutritional education, was implemented among 15 school children, aged 7-10 years, with a Body Mass Index ≥ 85th percentile.

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Distinct plasma microRNA profiles associate with different disease features and could be used to personalize diagnostics. Elevated plasma microRNA hsa-miR-193b-3p has been reported in patients with pre-diabetes where early asymptomatic liver dysmetabolism plays a crucial role. In this study, we propose the hypothesis that elevated plasma hsa-miR-193b-3p conditions hepatocyte metabolic functions contributing to fatty liver disease.

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Article Synopsis
  • * It found that 68.8% of participants with HKOA experienced UPL, with significant associations linked to being female, overweight or obese, and having multiple chronic conditions.
  • * The presence of UPL led to poorer performance in daily activities and resulted in a lower quality of life for affected individuals, indicating the need for targeted therapeutic strategies.
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Athletes' Opinions on Food Provision at European Athletics Championships: Implications for the Future.

Nutrients

January 2023

Nutrition and Lifestyle, NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, 1169-056 Lisboa, Portugal.

In competitive events, athletes' performances can be affected by their food choices. In addition, nutrition labels are essential to sustain informed decisions and to allow athletes to comply with their dietary planning. Knowing what influences athletes' food choices will help to improve the food provision in future championships.

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DNA damage independent inhibition of NF-κB transcription by anthracyclines.

Elife

December 2022

Innate Immunity and Inflammation Laboratory, Instituto Gulbenkian de Ciência, Oeiras, Portugal.

Anthracyclines are among the most used and effective anticancer drugs. Their activity has been attributed to DNA double-strand breaks resulting from topoisomerase II poisoning and to eviction of histones from select sites in the genome. Here, we show that the extensively used anthracyclines Doxorubicin, Daunorubicin, and Epirubicin decrease the transcription of nuclear factor kappa B (NF-κB)-dependent gene targets, but not interferon-responsive genes in primary mouse () macrophages.

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Background: Identifying and understanding modifiable factors for the well-being of cancer patients is critical in survivorship research. We studied variables associated with the exercise habits of breast cancer patients and investigated if the achievement of exercise recommendations was associated with enhanced quality of life and/or psychological well-being. .

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The Complex Dynamic of Phase I Drug Metabolism in the Early Stages of Doxorubicin Resistance in Breast Cancer Cells.

Genes (Basel)

October 2022

Centre for Toxicogenomics and Human Health (ToxOmics), Faculdade de Ciências Médicas (FCM), NOVA Medical School (NMS), Universidade Nova de Lisboa, 1169-056 Lisboa, Portugal.

The altered activity of drug metabolism enzymes (DMEs) is a hallmark of chemotherapy resistance. Cytochrome P450s (CYPs), mainly CYP3A4, and several oxidoreductases are responsible for Phase I metabolism of doxorubicin (DOX), an anthracycline widely used in breast cancer (BC) treatment. This study aimed to investigate the role of Phase I DMEs involved in the first stages of acquisition of DOX-resistance in BC cells.

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Assessment of a Large-Scale Unbiased Malignant Pleural Effusion Proteomics Study of a Real-Life Cohort.

Cancers (Basel)

September 2022

iNOVA4Health, NOVA Medical School (NMS), Faculdade de Ciências Médicas (FCM), Universidade Nova de Lisboa, 1150-082 Lisbon, Portugal.

Background: Pleural effusion (PE) is common in advanced-stage lung cancer patients and is related to poor prognosis. Identification of cancer cells is the standard method for the diagnosis of a malignant PE (MPE). However, it only has moderate sensitivity.

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Article Synopsis
  • - Multiple myeloma (MM) is a common blood cancer marked by the growth of abnormal plasma cells in the bone marrow and a supportive microenvironment that allows this growth.
  • - Research indicates that communication between myeloma cells and immune cells, particularly through tumor cell-derived extracellular vesicles (EV), plays a significant role in how MM develops and affects the immune system.
  • - In experiments with mice, it was found that while conditioning with myeloma cell-derived EV did not trigger disease symptoms, it did enhance immune suppression in the bone marrow, highlighting the importance of these EV in altering the immune microenvironment in MM.
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