Publications by authors named "Pedro M Vidal"

Objective: We investigated ethnic health disparities in the Healthy Life in an Urban Setting multi-ethnic cohort using the multidimensional Healthy Ageing Score.

Study Design: We conducted a cross-sectional analysis of the study baseline data (2011-2015) collected through questionnaires/physical examinations for 17,091 participants (54.8 % women, mean (SD) age = 44.

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Objective: To develop and externally validate a 10-year risk prediction model of natural onset of menopause using ready-to-use predictors.

Design: Population-based prospective cohort study.

Participants: Community-dwelling, premenopausal women aged 28 years and older enrolled in the Swiss (CoLaus) and Dutch (PREVEND) study.

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Article Synopsis
  • Common SNPs may account for 40-50% of human height variation, and this study identifies 12,111 SNPs linked to height from a large sample of 5.4 million individuals.
  • These SNPs cluster in 7,209 genomic segments, encompassing about 21% of the genome and showing varying densities enriched in relevant genes.
  • While these SNPs explain a substantial portion of height variance in European populations (40-45%), their predictive power is lower (10-24%) in other ancestries, suggesting a need for more research to enhance understanding in diverse populations.
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Article Synopsis
  • - The study analyzed data from 703,901 individuals and identified 99 genetic loci related to physical activity levels and sedentary behavior, particularly focusing on leisure time activities and screen use.
  • - Certain genes linked to sedentary behavior show heightened expression in skeletal muscle when influenced by resistance training, highlighting a connection between genetics and exercise.
  • - The findings suggest that lower screen time and increased physical activity can positively impact health, but these effects may be influenced by factors like body mass index (BMI).
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Certain personality traits, in particular higher neuroticism, have been associated, on one hand, with elevated cortisol levels, and on the other hand, with poorer cognitive performance. At the same time, several studies highlighted the association between high cortisol and poor cognitive functioning. Here, we hypothesized that increased cortisol may be associated with poorer cognition and with certain personality traits (mainly high neuroticism), and that personality might explain the association between cortisol and cognition.

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Background.  Although acquired immune deficiency syndrome-associated morbidity has diminished due to excellent viral control, multimorbidity may be increasing among human immunodeficiency virus (HIV)-infected persons compared with the general population. Methods.

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A genome-wide association study (GWAS) of educational attainment was conducted in a discovery sample of 101,069 individuals and a replication sample of 25,490. Three independent single-nucleotide polymorphisms (SNPs) are genome-wide significant (rs9320913, rs11584700, rs4851266), and all three replicate. Estimated effects sizes are small (coefficient of determination R(2) ≈ 0.

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Concentrations of liver enzymes in plasma are widely used as indicators of liver disease. We carried out a genome-wide association study in 61,089 individuals, identifying 42 loci associated with concentrations of liver enzymes in plasma, of which 32 are new associations (P = 10(-8) to P = 10(-190)). We used functional genomic approaches including metabonomic profiling and gene expression analyses to identify probable candidate genes at these regions.

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Objectives: Depression has been consistently reported in people with epilepsy. Several studies also suggest a higher burden of cardiovascular diseases. We therefore analysed psychosocial co-morbidity and cardiovascular risk factors in patients with a lifetime history of epilepsy in the PsyCoLaus study, a Swiss urban population-based assessment of mental health and cardiovascular risk factors in adults aged between 35 and 66 years.

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Background: Cardiovascular diseases and their associated risk factors remain the main cause of mortality in western societies. In order to assess the prevalence of cardiovascular risk factors (CVRFs) in the Caucasian population of Lausanne, Switzerland, we conducted a population-based study (Colaus Study). A secondary aim of the CoLaus study will be to determine new genetic determinants associated with CVRFs.

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Background: Both genetic and environmental factors affect the risk of colorectal cancer (CRC).

Objective: We aimed to examine the interaction between the D1822V polymorphism of the APC gene and dietary intake in persons with CRC.

Design: Persons with CRC (n = 196) and 200 healthy volunteers, matched for age and sex in a case-control study, were evaluated with respect to nutritional status and lifestyle factors and for the D1822V polymorphism.

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Purpose: To investigate the impact of dietary counseling or nutritional supplements on outcomes in cancer patients: nutritional, morbidity, and quality of life (QoL) during and 3 months after radiotherapy.

Patients And Methods: A total of 111 colorectal cancer outpatients referred for radiotherapy, stratified by staging, were randomly assigned: group 1 (G1; n = 37), dietary counseling (regular foods); group 2 (G2; n = 37), protein supplements; and group 3 (G3; n = 37), ad libitum intake. Nutritional intake (diet history), status (Ottery's Subjective Global Assessment), and QoL (European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire version 3.

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Goals Of Work: The aims of this study were (1) to evaluate quality of life (QoL), nutritional status and dietary intake taking into account the stage of disease and therapeutic interventions, (2) to determine potential interrelationships, and (3) to quantify the relative contributions of the cancer, nutrition and treatments on QoL.

Patients And Methods: In this prospective cross-sectional study conducted in 271 head and neck, oesophagus, stomach and colorectal cancer patients, the following aspects were evaluated: QoL (EORTC-QLQ C30), nutritional status (percent weight loss over the previous 6 months), usual diet (comprehensive diet history), current diet (24-h recall) and a range of clinical variables.

Main Results: Usual and current intakes differed according to the site of the tumour ( P=0.

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Synopsis of recent research by authors named "Pedro M Vidal"

  • - Recent research by Pedro M Vidal focuses on health disparities and aging in diverse populations, highlighting ethnic differences in healthy aging and the development of predictive models for menopause onset.
  • - His work emphasizes the genetic and environmental factors influencing physical activity, sedentary behavior, and common health outcomes, utilizing large multi-ancestry datasets to uncover insights about these traits and their implications on disease prevention.
  • - Additionally, Vidal has investigated various psychosocial aspects related to chronic conditions, such as the interplay between personality traits, cortisol levels, and cognition in elderly populations, and the effects of smoking on multimorbidity in HIV-infected individuals compared to the general population.