Publications by authors named "A J M Ortega"
Latin Americans have a rich genetic make-up that translates into heterogeneous fractions of the autosomal genome in runs of homozygosity (F) and heterogeneous types and proportions of indigenous American ancestry. While autozygosity has been linked to several human diseases, very little is known about the relationship between inbreeding, genetic ancestry, and cancer risk in Latin Americans. Chile has one of the highest incidences of gallbladder cancer (GBC) in the world, and we investigated the association between inbreeding, GBC, gallstone disease (GSD), and body mass index (BMI) in 4029 genetically admixed Chileans.
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- The study examines the long-term psychological effects of disasters on adolescents, focusing on mental health symptoms, quality of life, and PTSD.
- The research included 228 adolescents over two years, investigating their disaster experiences, emotional regulation, and self-concept through specific mental health assessments.
- Findings show that girls are more adversely affected and that those with PTSD show greater improvements over time, highlighting the complexity of recovery and the need for targeted mental health resources.
The death and clearance of nurse cells is a consequential milestone in Drosophila melanogaster oogenesis. In preparation for oviposition, the germline-derived nurse cells bequeath to the developing oocyte all their cytoplasmic contents and undergo programmed cell death. The death of the nurse cells is controlled non-autonomously and is precipitated by epithelial follicle cells of somatic origin acquiring a squamous morphology and acidifying the nurse cells externally.
View Article and Find Full Text PDFObjective: We studied patterns in health care access between Latino and non-Latino White adults according to citizenship status before and after the American Rescue Plan Act (ARPA) of 2021 was enacted to determine whether inequities changed.
Methods: This study used 2019-2022 National Health Survey Interview data. Differences in predicted probabilities from logistic regression models were used to estimate changes in health care access outcomes (any insurance coverage, private insurance coverage, delaying care due to cost, and having a usual source of care) among Latino citizens, Latino noncitizens, and non-Latino White citizens in periods before and after ARPA's enactment (2019-2020 vs 2021-2022).
Background: While studies have observed mental health inequities across aggregated Asian and Latine populations, a critical gap exists in our understanding of inequities within and across Asian and Latine subpopulations.
Objective: We examined the prevalence of mental health symptoms and variations in mental health service use across Black and White populations and Asian and Latine subpopulations at a more granular level.
Methods: We conducted a cross-sectional study using data from the 2016-2021 Medical Expenditure Panel Survey.