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The phenomenon of world aging is not foreign to indigenous communities. In the last few years, research about these communities around the world has increased, but aging in indigenous towns still has not been studied widely. The purpose of this research is to interpret the meaning of old age in two indigenous communities from the Colombian Andean-Amazon region (the Inga and Kamëntsa) to reinforce the relevance of the local sociocultural context within the configuration of the meaning of old age and to emphasize the importance of considering particular regional characteristics for the design of policies and interventions aiming to recognize and integrate indigenous populations. This is a qualitative study with an interactionism-symbolism approach. In total, six indigenous people older than 60 years from two ancestral communities from the Colombian Andean-Amazon region participated in the in-depth interviews. Data analysis was carried out in three moments: discovery, coding, and relativization of the information. The results show that old age means wisdom, "I am wise," which is supported in the cosmology and the trajectory of life, reinforces the identity and autonomy, and allows them to be agents in the dynamics of their communities from the "I do," in other words, their roles as builders of the family-society and as guards of ancestral knowledge. The loss of this knowledge and the elements that it is composed of uproot them and put them at risk of disappearing as individuals and as a collective. In conclusion, the meaning of old age in these communities is not centered on a determinate age; you are not old, you are wise, and as such, they play a central role in their communities. Moreover, wisdom is built in parallel with their cosmology and assigns them the task of safekeeping ancestral knowledge. In order to do this, they use oral tradition as a tool, words that are born in their territories, travel in a nonlinear timeline, and get strengthened by the community while also protecting it and building it. Knowing what aging means for Indigenous communities can facilitate to the development of policies and initiatives and to provide culturally appropriate and effective programs.

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AIMS: An increase in type 1 diabetes (T1D) incidence has been observed in several countries during the COVID-19 pandemic. The objective of this study is to determine T1D incidence trends in Chilean children between 2006 and 2021, and specifically evaluate the effect of the COVID-19 pandemic in this population. METHODS: We reviewed mandatory notifications of T1D in Chile's public and private health system in youth < 20 years between 2006 and 2021, and compared COVID-19 pre-pandemic and pandemic incidence. RESULTS: In Chile, 9472 new T1D cases in children were confirmed between 2006 and 2021. The mean annual T1D incidence in the entire period was 12.7/100,000 inhabitants, with an incidence of 11.7/100,000 between 2006 and 2019 vs. 20.2/100,000 during 2020-2021 (ß = 0.691, [95%CI 0.479-0903], p < 0.001.) The highest incidence was observed in the 10-14 years age group, but a significant increasing incidence was observed in all age groups. The second year of the COVID-19 pandemic, 2021, had the highest incidence rate of the study period. While a 5% mean annual increase was observed between 2006 and 2019, in 2021 the T1D incidence jumped 28.5% compared with the two previous years. We found a higher T1D incidence in population with private insurance than public insurance (14.8 vs. 11.7/100.000, respectively, RR = 1.26 [95%CI 1.03-1.53], p < 0.027). CONCLUSIONS: T1D incidence rates in Chilean youth doubled between 2006 and 2018, subsequently presenting a striking increase during the COVID-19 pandemic.

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BACKGROUND: Fibrous Dysplasia/McCune-Albright Syndrome (FD/MAS) is characterized by a spectrum of manifestations that may include fibrous dysplasia of bone and multiple endocrinopathies. AIM: To describe the clinical spectrum, the study and follow-up of patients with FD/MAS cared at our institution. MATERIAL AND METHODS: Review of medical records of 12 pediatric and adult patients (11 women) who met the clinical and genetic diagnostic criteria for FD/ MAS. RESULTS: The patients' mean age at diagnosis was 4.9 ± 5.5 years. The most common initial clinical manifestation was peripheral precocious puberty (PPP) in 67% of patients and 75% had café-au-lait spots. Fibrous dysplasia was present in 75% of patients and the mean age at diagnosis was 7.9 ± 4.7 years. Ten patients had a bone scintigraphy, with an age at the first examination that varied between 2 and 38 years of age. The most frequent location of dysplasia was craniofacial and appendicular. No patient had a recorded history of cholestasis, hepatitis, or pancreatitis. In four patients, a genetic study was performed that was positive for the pathogenic variant of guanine nucleotide binding protein, alpha stimulating (GNAS). CONCLUSIONS: These patients demonstrate the variable nature of the clinical presentation and study of FD/MAS. It is essential to increase the index of diagnostic suspicion and adherence to international recommendations.

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Central precocious puberty is the premature activation of the hypothalamic-pituitary-gonadal axis, leading to an early epiphyseal fusion and, in many cases, heights below the genetic target. Therefore, a proper adult stature prediction is essential for the treatment decision. OBJECTIVE: To compare the concordance of final height using height prediction made by two validated methods versus the ge netic target height in girls who consulted due to central precocious puberty. PATIENTS AND METHOD: Retrospective, non-concurrent cohort study including 93 girls with central precocious puberty, who were not treated with LHRH analogs and had reached their final adult height. The data was obtained from the clinical records. To predict height, the Bayley-Pinneau method and the Roche-Wainer- Thissen method were applied, and the results were compared with the genetic target height. The concordance between the estimated final height and the final height obtained was evaluated using the Bland-Altman method. RESULTS: When comparing the final height obtained with that predicted by the Bayley-Pinneau method, there was a mean difference of 1.01 cm, and using the Rocke-Wainer- Thissen method, there was a difference of +0.96 cm. The calculation of the genetic target height showed a difference of +0.05 cm with respect to the final height. CONCLUSION: The prediction of height made by the Bayley-Pinneau and Roche-Wainer-Thissen methods was adequate and, contrary to expectations, it was similar to the calculation of the genetic target height that does not use the age of bone maturation. This also presented better concordance and less dispersion of the results with respect to the final height obtained.

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BACKGROUND: Preterm neonates are at risk for metabolic syndrome later in life. Whether prematurity constitutes an independent risk factor for the development of cardiovascular disease and metabolic syndrome remains controversial. OBJECTIVE: To compare anthropometric measures, cardiometabolic risk factors and insulin resistance variables between children who were born very preterm (VPT, <32 gestational weeks) and at term (Term, >37 gestational weeks) and adequate for gestational age (AGA). METHODS: We designed a cross-sectional cohort study, recruiting 120 children (5.0-8.5 years old) from the preterm clinic at Red de Salud UC-Christus and Complejo Asistencial Dr. Sótero del Río, and term children from the community. We excluded children born small for gestational age, based on INTERGROWTH21. Anthropometrics data were classified using WHO reference standards. The homeostasis model assessment insulin resistance (HOMA-IR) index, quantitative insulin sensitivity check index (QUICKI), triglyceride-to-HDL-C ratio (TG/HDL-C) and Pediatric Score Index for Metabolic Syndrome (PsiMS) were calculated. RESULTS: VPT children born AGA had lower HDL cholesterol levels (p = .019) and a higher PsiMS score than those born at term (p = .043). We observed a higher percentage of children with HDL cholesterol ≤40 mg/dl (13.0% vs. 2.3%, p = .026) and BP ≥90th percentile among the VPT children than among the Term children (26.0% vs. 11.6%, p = .031). CONCLUSIONS: At school age, blood pressure was higher, and HDL-C was lower among VPT children born AGA, suggesting a potential metabolic risk; therefore, it is essential to follow this group throughout their lives.

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Introducción. Las funciones del Comité de Ética Clínica (CEC) son educativas, normativas, consultivas, mediadoras y reflexivas. Como cualquier servicio de salud, las consultas de casos a un CEC deben ser sujetas a revisión y mejora de la calidad. Los objetivos fueron evaluar la factibilidad, la efectividad y la satisfacción de las recomendaciones ético-asistenciales dadas por el CEC, y evaluar su impacto en el equipo tratante y en la familia. Población y métodos. Estudio descriptivo, retrospectivo, cualicuantitativo, de casos clínicos presentados en el Comité de Ética Clínica del hospital desde el 1 de enero de 2013 hasta el 31 de diciembre de 2017, según datos del libro de actas, historias clínicas, registros de la Oficina de Comunicación a Distancia y entrevistas semiestructuradas al equipo de salud. Resultados. Se analizaron 108 casos (106 pacientes), 73 casos con encuesta y registros, y 35 solamente con registros. Los motivos principales más frecuentes de consulta fueron los siguientes: adecuación del esfuerzo terapéutico (46/42,6 %), compromiso neurológico grave (15/13,9 %), calidad de vida del paciente (11/10,2 %), conflictos entre el paciente, la familia y el sistema de salud (7/6,5 %), y rechazo del tratamiento por la familia (6/5,6 %). Se hallaron niveles altos de satisfacción (> 95 %) y niveles moderados de factibilidad (> 74 %) y efectividad (> 85 %). Solo en 50/108 casos (46,3 %) quedó registro en la historia clínica de la consulta al CEC y el 44 % de los profesionales opinó que la consulta tuvo un impacto positivo en la familia y en el paciente. Conclusiones. Los resultados contribuyeron a descubrir oportunidades de mejora, especialmente en la documentación y en la comunicación en el proceso de consulta.

Introduction. A clinical ethics committee (CEC) has educational, regulatory, advisory, mediation, and reflexive functions. As any health care service, the consults with the CEC should be subjected to review and quality improvement. The study objectives were to assess the feasibility, effectiveness, and satisfaction with the bioethical recommendations made by the CEC and assess their impact on the treating team and the patient's family. Population and methods. Descriptive, retrospective, qualitative, and quantitative study of clinical cases submitted to the hospital's CEC between January 1 st, 2013 and December 31, 2017 using data from the CEC minute book, medical records, registries from the Office for Remote Communication, and semi-structured interviews with health care team members. Results. A total of 108 cases (106 patients) were analyzed: 73 cases with survey and registries and 35 with registries only. The main most frequent reasons for consultation were adequacy of therapeutic effort (46/42.6%), severe neurological involvement (15/13.9%), patient's quality of life (11/10.2%), patient-family-health system conflict (7/6.5%), and family's refusal of treatment (6/5.6%). High levels of satisfaction (> 95%) and moderate levels of feasibility (> 74%) and effectiveness (> 85%) were observed. In only 50/108 cases (46.3%), the consultation with the CEC was registered in the medical record, 44% of health care providers stated that the consultation had a positive impact on the patient and their family. Conclusions. Results helped to establish improvement opportunities, especially in terms of documentation and communication in the consultation process.

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INTRODUCTION: A clinical ethics committee (CEC) has educational, regulatory, advisory, mediation, and reflexive functions. As any health care service, the consults with the CEC should be subjected to review and quality improvement. The study objectives were to assess the feasibility, effectiveness, and satisfaction with the bioethical recommendations made by the CEC and assess their impact on the treating team and the patient's family. POPULATION AND METHODS: Descriptive, retrospective, qualitative, and quantitative study of clinical cases submitted to the hospital's CEC between January 1st, 2013 and December 31st, 2017 using data from the CEC minute book, medical records, registries from the Office for Remote Communication, and semi-structured interviews with health care team members. RESULTS: A total of 108 cases (106 patients) were analyzed: 73 cases with survey and registries and 35 with registries only. The main most frequent reasons for consultation were adequacy of therapeutic effort (46/42.6%), severe neurological involvement (15/13.9%), patient's quality of life (11/10.2%), patient-family-health system conflict (7/6.5%), and family's refusal of treatment (6/5.6%). High levels of satisfaction (> 95%) and moderate levels of feasibility (> 74%) and effectiveness (> 85%) were observed. In only 50/108 cases (46.3%), the consultation with the CEC was registered in the medical record, 44% of health care providers stated that the consultation had a positive impact on the patient and their family. CONCLUSIONS: Results helped to establish improvement opportunities, especially in terms of documentation and communication in the consultation process.

Introducción. Las funciones del Comité de Ética Clínica (CEC) son educativas, normativas, consultivas, mediadoras y reflexivas. Como cualquier servicio de salud, las consultas de casos a un CEC deben ser sujetas a revisión y mejora de la calidad. Los objetivos fueron evaluar la factibilidad, la efectividad y la satisfacción de las recomendaciones ético-asistenciales dadas por el CEC, y evaluar su impacto en el equipo tratante y en la familia. Población y métodos. Estudio descriptivo, retrospectivo, cualicuantitativo, de casos clínicos presentados en el Comité de Ética Clínica del hospital desde el 1 de enero de 2013 hasta el 31 de diciembre de 2017, según datos del libro de actas, historias clínicas, registros de la Oficina de Comunicación a Distancia y entrevistas semiestructuradas al equipo de salud. Resultados. Se analizaron 108 casos (106 pacientes), 73 casos con encuesta y registros, y 35 solamente con registros. Los motivos principales más frecuentes de consulta fueron los siguientes: adecuación del esfuerzo terapéutico (46/42,6 %), compromiso neurológico grave (15/13,9 %), calidad de vida del paciente (11/10,2 %), conflictos entre el paciente, la familia y el sistema de salud (7/6,5 %), y rechazo del tratamiento por la familia (6/5,6 %). Se hallaron niveles altos de satisfacción (> 95 %) y niveles moderados de factibilidad (> 74 %) y efectividad (> 85 %). Solo en 50/108 casos (46,3 %) quedó registro en la historia clínica de la consulta al CEC y el 44 % de los profesionales opinó que la consulta tuvo un impacto positivo en la familia y en el paciente. Conclusiones. Los resultados contribuyeron a descubrir oportunidades de mejora, especialmente en la documentación y en la comunicación en el proceso de consulta.

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BACKGROUND: Fibrous Dysplasia/McCune-Albright Syndrome (FD/MAS) is characterized by a spectrum of manifestations that may include fibrous dysplasia of bone and multiple endocrinopathies. AIM: To describe the clinical spectrum, the study and follow-up of patients with FD/MAS cared at our institution. MATERIAL AND METHODS: Review of medical records of 12 pediatric and adult patients (11 women) who met the clinical and genetic diagnostic criteria for FD/ MAS. RESULTS: The patients' mean age at diagnosis was 4.9 ± 5.5 years. The most common initial clinical manifestation was peripheral precocious puberty (PPP) in 67% of patients and 75% had café-au-lait spots. Fibrous dysplasia was present in 75% of patients and the mean age at diagnosis was 7.9 ± 4.7 years. Ten patients had a bone scintigraphy, with an age at the first examination that varied between 2 and 38 years of age. The most frequent location of dysplasia was craniofacial and appendicular. No patient had a recorded history of cholestasis, hepatitis, or pancreatitis. In four patients, a genetic study was performed that was positive for the pathogenic variant of guanine nucleotide binding protein, alpha stimulating (GNAS). CONCLUSIONS: These patients demonstrate the variable nature of the clinical presentation and study of FD/MAS. It is essential to increase the index of diagnostic suspicion and adherence to international recommendations.

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INTRODUCCIÓN: El principal rol de la vitamina D es la regulación del metabolismo del calcio, cuya principal fuen te es la vitamina D3 que se obtiene principalmente por la acción de la luz ultravioleta (UV) en la piel. OBJETIVO: Evaluar las diferencias estacionales en las concentraciones de 25-hidroxi-vitamina D3 (25OHVitD3), hormona paratiroidea (PTH), fosfatasa alcalina (FA) y calcio en niños en edad esco lar. SUJETOS Y MÉTODO: Se midieron las concentraciones de 25OHVitD3, PTH, FA y calcio en niños de 5 a 8 años, sin suplementación de Vitamina D, reclutados en Santiago de Chile (latitud -33.4372) en distintas estaciones del año. El estatus de VitD fue definido como suficiente con concentraciones de 25OHVitD3 > 20 ng/mL (50 nmol/L), insuficiente 12-20 ng/mL (30-50 nmol/L) y deficiente 20 ng/mL) en verano, lo que disminuyó significativamente en invierno (54,3%, p < 0,0001). CONCLUSIONES: Las concentraciones de 25OHVitD3 disminuyeron en aproximadamente la mitad de los niños durante el invierno, lo que se vio acompañado de un aumento de la PTH y FA, asociado a concentraciones normales de calcio. De acuerdo a nuestros resultados, la suplementación con VitD en niños podría ser necesaria durante otoño e invierno.

INTRODUCTION: The main role of Vitamin D is to regulate calcium metabolism, whose main source is vitamin D3 ob tained mostly from the action of ultraviolet (UV) light on the skin. OBJECTIVE: To evaluate the seaso nal differences in the concentrations of 25-hydroxy-vitamin D3 (25OHVitD3), parathyroid hormone (PTH), alkaline phosphatase (ALP), and calcium in school-age children. SUBJECTS AND METHOD: The concentrations of 25OHVitD3, PTH, ALP, and calcium were measured in children from Santiago, Chile (latitude -33.4372), aged 5 to 8 years, without Vitamin D supplementation, in different seasons of the year. VitD status was defined as sufficient with concentrations of 25OHVitD3 >20 ng/mL (50 nmol/L), insufficient 12-20 ng/mL (30-50 nmol/L) and deficient 20 ng/mL), which decreased significantly in winter to 54.3% (p <0.0001). CONCLUSIONS: In winter, 25OHVitD3 concentrations decreased in approximately half of the children, which was associated with an increase in PTH and ALP, and normal calcium concentrations. According to our results, children may need VitD supple mentation during fall and winter.

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Catalytic wet peroxide oxidation (CWPO) is a novel, alternative technology to conventional disinfection methods that are widely used to control microbial parameters in drinking water. To assess its effectiveness, new studies revealing the kinetics of MS2 coliphage inactivation by CWPO technology are required. This investigation therefore aimed to perform mathematical modelling of MS2 inactivation through CWPO technology activated by an Al/Fe-pillared clay catalyst (Al/Fe-PILC) in the presence of a synthetic surrogate of dissolved natural organic matter. The inactivation constant was obtained from two different statistical approaches, and the experimental data were better fitted to the pseudo-first-order Chick-Watson model in which the inactivation rate is constant. For this model, the maximum inactivation rate was k = 0.1648 min-1, which was achieved in the MS2-3 catalytic test using an initial mass ratio of peroxide to active iron (Feact) of 1.2 mg H2O2/mg Feact. To estimate the inactivation rate due to reactive oxygen species (ROS), we supposed that the inactivation constant depends on both ROS and Feact. In this case, the maximum inactivation rate due to ROS was kr = 2.4 × 10-9 min-1 (using 1.17 mg H2O2/mg Feact), which was achieved in the MS2-10 trial; both cases led to the conclusion that the optimal initial ratio of peroxide to active Fe in the catalyst in CWPO activated by Al/Fe-PILC was close to 1.2 mg H2O2/mg Feact. These kinetic studies showed that rapid inactivation takes place very early in the reaction, followed by slow inactivation during the remaining period of the recorded reaction time. This research revealed the strong potential of CWPO technology to improve microbiological parameters in drinking water due to the high catalytic performance in the heterogeneous Fenton reaction displayed by Fe sites incorporated in the Al/Fe-PILCs.

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