Browsing by Author "Riquelme Perez, Arnoldo Javier"

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    Impact of the COVID-19 pandemic on the eating behaviors of children and adolescents with autism spectrum disorder
    (Sociedad Argentina de Pediatría, 2023) Olivos, Catalina Le Roy; Nuñez Farias, Alicia Carolina; Lopez Espejo, Mauricio Alejandro; Medeiros, Elisa Coelho; Fuenzalida, Alejandra Galvez; Fuentes Lopez, Eduardo; Riquelme Perez, Arnoldo Javier
    Introduction. Children with autism spectrum disorder (ASD) have difficulties adapting to stressful situations, such as the COVID-19 pandemic. Objective. To assess the impact of the first year of the pandemic on feeding difficulties in children with ASD. Population and methods. The caregivers of children and adolescents with non-syndromic ASD (age: 2-18 years) from a neurodevelopment unit were invited to participate. Participants completed a questionnaire and the Behavioral Pediatrics Feeding Assessment Scale (BPFAS) online before and during the first year of the pandemic. A priority score (product between the average frequency and the problem) for each BPFAS item was estimated. Results. Among the caregivers, 56.6% (86/152) completed the survey (mother: 74.4%); children's median age was 6.3 years (p25-p75: 4.7-8.2); 80.2% of children were males; 58.1% continued with their therapy during the pandemic; and 61.6% had behavioral problems before the pandemic. During the first year of the pandemic, children had greater behavioral problems (34.9%) and feeding difficulties (61.6%); however, 31.4% of caregivers referred improvements in feeding. There were no significant differences in the BPFAS scores before and during the pandemic. The following items obtained the highest priority scores: gets up from table during meal, does not try new food, does not eat vegetables, does not eat fruits. Conclusions. A high frequency of feeding difficulties was noted during the first year of the pandemic. No differences were observed in feeding characteristics before and during the pandemic.
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    In experts’ words: Translating theory to practice for teaching self-regulated learning
    (2024) Isbej Esposito, Lorena Pilar; Waterval, Dominique; Riquelme Perez, Arnoldo Javier; Veliz Paiva, Claudia Paz; Bruin, Anique B. H. de
    IntroductionHealth professions education (HPE) should help students to competently self-regulate their learning, preparing them for future challenges. This study explored the perspectives of expert self-regulated learning (SRL) researchers and practitioners on the practical integration of SRL theories into teaching.MethodsAn exploratory qualitative research study was conducted involving semi-structured interviews with acknowledged research leaders in the field of SRL and/or experienced professionals dedicated to teaching SRL strategies for complex skills in different disciplines. The data were analyzed using an iterative thematic approach guided by a six-step framework.ResultsFifteen interviews were conducted with experts from six countries representing diverse contexts, cultures, and disciplines. We identified five themes related to translating theory to practice for teaching SRL in HPE: theoretical issues, cultural aspects, stakeholders’ participation, teaching complexity, assessment, and feedback.ConclusionsThis study presents a useful starting point for teaching SRL. The experts suggest a supportive learning environment with the guidance of competent teachers by using general and task-specific teaching and learning strategies, as well as sufficient sources and cycles of feedback, all tailored to the culture and context. These findings call for a shift in faculty development programs to foster teachers to support second-order scaffolding in HPE.
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    Plasminogen activator inhibitor type 1 serum levels and 4G/5G gene polymorphism in morbidly obese Hispanic patients with non-alcoholic fatty liver disease
    (Elsevier España, 2011) Espino Espino, Alberto Antonio; Villagran Torres, Andrea Alejandra; Vollrath Reyes, Valeska Yolanda; Hanckes Mayo, Maria Paulina; Salas Ocaranza, Roberto Ignacio; Farah Samaan, Andrea Catherina; Solis, Nancy; Pizarro Rojas, Margarita Alicia; Escalona Perez, Alex Gamaliel; Boza Wilson, Camilo; Perez, Gustavo; Carrasco, Gonzalo; Padilla, Orlando; Francisco Miguel, Juan; Nervi Oddone, Flavio; Chavez Tapia, Norberto C.; Arab Verdugo, Juan Pablo; Alvarez Lobos, Manuel Marcelo; Arrese Jimenez, Marco Antonio; Riquelme Perez, Arnoldo Javier
    Background. The plasminogen activator inhibitor type-1 (PAI-1) has been implicated in the regulation of fibrinolysis and extracellular matrix components. The single base pair guanine insertion/deletion polymorphism (4G/5G) within the promoter region of the PAI-1 gene influences PAI-1 synthesis and may modulate hepatic fibrogenesis. Aim. To evaluate the influence of PAI-1 serum levels and 4G/5G polymorphism on the risk of liver fibrosis associated to non-alcoholic fatty liver disease (NAFLD) in morbidly obese patients. Material and methods. Case-control study of 50 obese patients undergoing bariatric surgery and 71 non-obese subjects matched by age and sex. Anthropometric and biochemical measurements were performed, including PAI-1 serum levels. Genomic DNA was obtained to assess the presence of 4G/5G polymorphism. Results. BMI, insulinemia, triglycerides, HOMA-IR, hypertension and diabetes were significantly higher in obese patients compared to control subjects. PAI-1 serum levels observed in obese patients were significantly lower (10.63 +/- 4.82) compared to controls (14.26 +/- 11.4; p < 0.05). No differences were observed in the PAI-1 4G/5G promoter genotypes frequencies (p = 0.12). No differences were observed in PAI-1 plasma levels among obese patients with liver fibrosis (10.64 +/- 4.35) compared to patients without liver fibrosis (10.61 +/- 5.2; p = 0.985). PAI-1 4G/5G promoter genotypes frequencies were similar in patients with or without liver fibrosis associated to NASH (p = 0.6). Conclusions. Morbidly obese patients had significantly Lower PAI-1 serum levels with similar PAI-1 4G/5G genotypes frequencies compared to non-obese subjects. The frequency of 4G/5G genotypes in Chilean Hispanic healthy subjects was similar to that described in other populations. No association was found between PAI-1 serum levels or 4G/5G genotype with liver fibrosis in obese patients.
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    Prospective assessment of smell and taste impairment in a South-American coronavirus disease 2019 (COVID-19) cohort: Association with the need for hospitalization and reversibility of dysfunction
    (2021) Gonzalez Gallardo, Claudia Andrea; Garcia-huidobro Nuñez Francisco Gustavo; Lagos Villaseca, Antonia Elisa; Aliaga Durán, Rodrigo Francisco; Fuentes Lopez, Eduardo; Díaz, Luis Antonio; Garcia Salum, Tamara Cristal; Salinas Ortiz, Erick David; Toro, Adriana; Callejas, Claudio Andrés; Riquelme Perez, Arnoldo Javier; Medina, Rafael; Palmer, James