Publications by authors named "Tejero M"

Background: Understanding socioeconomic and gender inequalities in physical inactivity during adolescence is a relevant public health issue to promote health in adult life. The aim of this qualitative study is to identify the factors that determine physical activity inequalities in adolescents.

Methods: We selected 2 educational centers in each of the 3 socioeconomic status areas-low, middle, and high-in the city of Madrid.

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Background: Precision nutrition is based on the integration of individual's phenotypical and biological characteristics including genetic variants, epigenetic marks, gut microbiota profiles, and metabolite fingerprints as well as medical history, lifestyle practices, and environmental and cultural factors. Thus, nutriomics areas including nutrigenomics, nutrigenetics, nutriepigenetics, nutrimetabolomics, and nutrimetagenomics have emerged to comprehensively understand the complex interactions between nutrients, diet, and the human body's molecular processes through precision nutrition.

Summary: This document from the Ibero-American Network of Nutriomics and Precision Nutrition (RINN22; View Article and Find Full Text PDF

Background/objectives: Nutrigenetics investigates the role of genetic variants that contribute to the inter-individual variation in response to food intake. Risk factors for cardiovascular disease (CVD) are influenced by the complex interplay of genetic and environmental factors, including the diet. The aim of this scoping review is to analyze the literature on the effect of genotypes on the response to dietary interventions for the treatment of CVD risk factors.

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We previously showed therapeutic advantages of using a capsid-modified and encoded antigen-optimized AAV-based cancer vaccine to initiate strong antigen-specific immune responses and increase survival in a syngeneic mouse model of melanoma. In this study, we further explore AAV vaccine dose reduction and possible mechanisms of the immune response. Immunization with extracellular vesicle (EV)-associated AAV6-S663V encoded ovalbumin (OVA) or tyrosinase-related protein 1 (TRP-1) induced significantly higher levels of antigen-specific CD8 T cells compared with standard AAV in mice.

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Searching for positive selection signals across genomes has identified functional genetic variants responding to environmental change. In Native Americans of Mexico, we used the fixation index (F) and population branch statistic (PBS) to identify SNPs suggesting positive selection. The 103 most differentiated SNPs were tested for associations with metabolic traits, the most significant association was /rs174616 with body mass index (BMI).

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Background: A high rate of hospitalized patients for COVID-19 had dysphagia, frequently underdiagnosed, and not treated, inducing a prolonged dysphagia with protracted recovery. Specific treatments and protocols have not been well described yet.

Aim: Given the potential benefits of respiratory muscle training (IEMT) and neuromuscular stimulation (NMES) in dysphagia treatment, this study aimed to assess the feasibility of the protocol used for treating dysphagia in patients who experienced prolonged hospitalization for COVID-19.

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Introduction: Optical coherence tomography angiography (OCT-A) is a novel tool that allows the detection of retinal vascular changes. We investigated the association of macular vessel density (VD) in the superficial plexus assessed by OCT-A with measures of cerebrovascular pathology and atrophy quantified by brain magnetic resonance imaging (MRI) in non-demented individuals.

Methods: Clinical, demographical, OCT-A, and brain MRI data from non-demented research participants were included.

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The production of clinical-grade recombinant adeno-associated viral (AAV) vectors for gene therapy trials remains a major hurdle in the further advancement of the gene therapy field. During the past decades, AAV research has been predominantly focused on the development of new capsid modifications, vector-associated immunogenicity, and the scale-up vector production. However, limited studies have examined the possibility to manipulate non-structural components of AAV such as the Rep genes.

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Introduction: The metabolic syndrome (MetS) is a cluster of abnormalities related to cardiovascular disease (CVD). Circulating miRNAs (c-miRNAs) are non-coding RNAs associated with different phenotypes, some of them integrating the MetS. The aim of the study was to compare the c-miRNAs profile in plasma between women with MetS and controls and explore their possible association with dysregulation of metabolic pathways.

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Article Synopsis
  • The study focuses on the high rates of malnutrition in infants with congenital heart disease (CHD) and emphasizes the importance of early nutritional assessment and intervention for better health outcomes.
  • Using a modified Delphi technique, specialists developed a consensus document that includes 150 recommendations for nutritional assessment and management based on clinical expertise and literature.
  • Key recommendations address the nutritional needs of infants with CHD, highlighting the need for intensive preoperative nutrition therapy, follow-up by pediatric nutrition units, and regular evaluations by cardiologists to achieve nutrition goals.
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  • The development of Alzheimer's disease (AD) typically has a prodromal phase characterized by high levels of Aβ and p-tau, alongside mild cognitive impairment (MCI), leading to challenges in early diagnosis.
  • Blood biomarkers are being explored as early screening tools, with plasma extracellular vesicles (pEVs) showing potential as new biomarkers for the initial stages of AD.
  • A study of early-onset MCI patients found that proteins in pEVs correlated with indicators of AD, suggesting pEVs could help identify amyloid-related changes in the brain before more widespread neuronal damage occurs.
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The objective of this paper is to explore the postural effect of galvanic vestibular stimulation (GVS) in camptocormia. It is a retrospective case series of 7 Parkinson disease and camptocormia patients. Binaural monopolar GVS was administered.

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is a Gram-negative bacterium capable of colonizing, invading, and causing infections in different anatomical sites of the human body. Its ability to evade the immune system, its increasing antimicrobial resistance and the emergence of hypervirulent pathotypes have become a major challenge in the medical field. In this study, 127 strains from different clinical sources (urine, respiratory tract or blood) were characterized for antimicrobial resistance, the presence of virulence factor genes, serum resistance, hypermucoviscosity and the ability to form biofilms.

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Background: Mild cognitive impairment (MCI) due to Alzheimer's disease (AD) diagnosis is based on cerebrospinal fluid (CSF) or neuroimaging biomarkers. Currently, non-invasive and inexpensive blood-based biomarkers are being investigated, such as neuronal-derived plasma exosomes (NPEs). Neuroinflammation and early vascular changes have been described in AD pathogenesis and can be traced in plasma and NPEs.

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This study aimed to demonstrate the use of geographic information systems (GIS) in identifying factors contributing to schistosomiasis endemicity and identifying high-risk areas in a schistosomiasis- endemic municipality in the Philippines, which was devastated by Typhoon Haiyan in 2013. Data on schistosomiasis determinants, obtained through literature review, the Philippine Department of Health, and concerned local government units, were standardized and incorporated into a GIS map using ArcGIS. Data gathered included modifiable [agriculture, poverty, sanitation, presence of intermediate and reservoir hosts, disease prevalence and mass drug administration (MDA) coverage] and nonmodifiable (geography and climate) determinants for schistosomiasis.

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Type 2 diabetes (T2D) is a global epidemic that affects more than 8% of the world's population and is a leading cause of death in Mexico. Diet and lifestyle are known to contribute to the onset of T2D. However, the role of the gut microbiome in T2D progression remains uncertain.

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Background: Mexico is experiencing an epidemic of childhood obesity and overweight, the factors that determine type 2 diabetes and cardiovascular diseases. Even though variants in genes such as MC4R, LEP, LEPR, and FTO have been associated with the risk of obesity, in Mexico the level of miscegenation is heterogeneous, so this risk must be measured as genetic ancestry. This study aimed at evaluating the association between common SNPs in FTO and MC4R genes in Mexican children with Amerindian, mestizo and predominance European ancestry.

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Article Synopsis
  • Optical coherence tomography (OCT) has been used to measure retinal thickness in patients with subjective cognitive decline (SCD), revealing that these individuals may show retinal layer thinning, which is associated with Alzheimer's disease (AD).
  • The study involved 129 SCD participants who underwent OCT and PET scans to examine the link between retinal thickness and amyloid-β accumulation over two years.
  • Results indicated that greater thickness in the inner nasal macular region correlates with higher likelihood of amyloid-β positivity, yet no retinal measurements predicted conversion to mild cognitive impairment (MCI) during the study period.
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Evidence on the impact of MCS on pediatric heart transplant survival is still scarce related to congenital heart disease patients including univentricular physiology as well as the risk factors for complications. We performed a retrospective review of all urgent pediatric (aged ≤16 years) HT from 2004 to 2014 in the Spanish Pediatric Heart Transplant Registry Group. Patients were stratified into two groups: urgent 0 (MCS at HT) and urgent 1 (non-MCS at HT).

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The effects of cocoa-derived polyphenols on cognitive functions have been analyzed through numerous studies using different interventions (doses, vehicles, time frame, cognition tests, and characteristics of participants) which may hamper the interpretation and comparison of findings across investigations. Thus, a systematic review was conducted to analyze the effects of cocoa-derived polyphenols intake on human cognition and discuss the methodological aspects that may contribute to the heterogeneity of findings. Randomized clinical trials evaluating the effect of cocoa polyphenols on cognitive function in healthy subjects were selected according to selection criteria.

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Hemoglobin (Hb) concentration is the outcome of the interaction between genetic variation and environmental factors, including nutritional status, sex, age, and altitude. Genetic diversity influencing this protein is complex and varies widely across populations. Variants related to abnormal Hb or altered characteristics of the erythrocytes increase the risk for anemia.

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Article Synopsis
  • The study created a genetic risk score (GRS) to analyze how plasma triglyceride (TG) levels respond to omega-3 fatty acid supplementation, showing it explained 21.53% of TG differences in Caucasian Canadians.
  • Researchers aimed to improve the GRS by refining it and examining its impact on TG responses in young Mexican adults during a 6-week supplementation with 2.7g/day of omega-3.
  • The study identified five significant genetic variations (SNPs) that contributed to 11.01% of the variance in TG response among Mexicans, indicating genetic factors play a crucial role in how different populations respond to omega-3 supplements.
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Background: Peripheral biomarkers that identify individuals at risk of developing Alzheimer's disease (AD) or predicting high amyloid beta (Aβ) brain burden would be highly valuable. To facilitate clinical trials of disease-modifying therapies, plasma concentrations of Aβ species are good candidates for peripheral AD biomarkers, but studies to date have generated conflicting results.

Methods: The Fundació ACE Healthy Brain Initiative (FACEHBI) study uses a convenience sample of 200 individuals diagnosed with subjective cognitive decline (SCD) at the Fundació ACE (Barcelona, Spain) who underwent amyloid florbetaben(F) (FBB) positron emission tomography (PET) brain imaging.

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