Dynamics of the double burden of malnutrition in Guatemala: a secondary data analysis of the demographic and health surveys from 1998-2015.

OBJECTIVE: We estimated the prevalence and time trends of the double burden of malnutrition (DBM) in Guatemala and explored its occurrence based on socio-demographic factors. STUDY DESIGN: This was a secondary data analysis using information from four Demographic and Health Surveys covering the period 1998-2015. METHODS: The unit of analysis was the household within which information was gathered from women 18-49 years and their children, 6-59 months. The main outcome was the prevalence of any DBM in the household (co-existence of undernutrition and overnutrition in a woman, her children or both). We estimated the prevalence of any DBM by survey and analysed time trends. Stepwise logistic regression was used to explore the occurrence of DBM and socio-demographic factors. RESULTS: We analysed 39,749 households across all surveys. The prevalence of any DBM was 25.3% (95%CI: 22.1-28.7) in 1998-99, 23.8% (22.0-25.8) in 2002, 25.9% (24.3-27.5) in 2008-09 and 24.2% (22.9-25.5) in 2014-15, with no significant change over time (P = 0.782). Characteristics associated with lower odds of any DBM were rural residence, female-headed household, wealth and women's secondary education. Higher odds were seen for households with electricity, women >25y, indigenous and with >2 children. CONCLUSION: Our findings revealed that a quarter of Guatemala's households suffer from DBM, which has remained unchanged for 17 years. Interventions should prioritise urban areas, households of lower socio-economic status and those less educated. To increase awareness of policymakers of this pressing public health concern, further research on DBM could be strengthened by prospective study designs, integrating all household members and expanding the types of malnutrition.

Two countries, similar practices: the political practices of the food industry influencing the adoption of key public health nutrition policies in Guatemala and Panama

To identify the corporate political activity (CPA) strategies used by food industry actors during the development of two public health nutrition policies in Central America: Law #570 (taxation of sugar-sweetened beverages) in Panama and Bill #5504 (labelling and food marketing regulations) in Guatemala. We triangulated data from publicly available information from 2018 to 2020, (e.g. industry and government materials; social media material) with semistructured interviews with key stakeholders. Guatemala and Panama. Participants: Government, academia and international organisations workers in health and nutrition. CPA strategies were categorised according to an existing internationally used taxonomy into action-based, instrumental strategies (coalition management, information management, direct involvement and influence in policy, legal action) and discursive strategies. Instrumental strategies included the establishment of relationships with policymakers and direct lobbying against the proposed public policies. Discursive strategies were mainly criticising on the unfounded ground that they lacked evidence of effectiveness and will imply negative impacts on the economy. The industry pointed at individuals for making their own food choices, in order to shift the focus away from the role of its products in contributing to ill health. We provide evidence of the political practices used by the food industry to interfere with the development and implementation of public health nutrition policies to improve diets in Central America. Policymakers, public health advocates and the public should be informed about those practices and develop counterstrategies and arguments to protect the public and policies from the vested interests of the food industry.

Urinary sodium, iodine, and volume in relation to metabolic syndrome in Mesoamerican children and their parents.

BACKGROUND AND AIMS: The roles of sodium or iodine intake on the metabolic syndrome (MetS) etiology remain controversial. We evaluated the associations of 24 h urinary sodium and iodine with MetS among Mesoamerican children and their adult parents. METHODS AND RESULTS: We conducted a cross-sectional study among 217 school-age children and 478 parents from 9 Mesoamerican cities. Exposures were high 24 h urinary sodium excretion and concentration (>2000 mg/d or mg/L, respectively) and high 24 h urinary iodine excretion and concentration (≥300 µg/d or µg/L, respectively). In children, the outcome was a standardized metabolic score from five criteria analogous to the Adult Treatment Panel (ATP) III criteria. In adults, MetS was defined according to the ATP III criteria. We estimated adjusted mean differences in the metabolic risk score and adjusted prevalence ratios of MetS between exposure categories using multivariable regression. In children, high sodium concentration was associated with a 0.10 units (43% of a SD) higher score (P = 0.001) and high iodine concentration was related to a 0.09 units (39% of a SD) higher score (P = 0.009). Unexpectedly, high 24 h urinary volume was associated with a lower metabolic score. In adults, high 24 h sodium excretion was related to hypertension and high iodine concentration was related to increased MetS prevalence. CONCLUSION: High sodium and iodine concentrations, but not 24 h iodine excretion, are significantly associated with MetS in children, whereas high 24 h urinary volume is related to a decreased metabolic score. In adults, high iodine concentration tends to be related to increased MetS prevalence, but not 24 h iodine excretion.

Protein-Energy Supplementation in Early-Life Decreases the Odds of Mental Distress in Later Adulthood in Guatemala

The prevalence of mental health concerns is growing worldwide, along with lack of access to and receipt of needed treatment. Current gaps in treatment provision have led to exploring alternative methods of prevention, with research linking nutrition and mental health, of particular relevance in low- and middle-income countries, with a high prevalence of undernutrition. To examine whether exposure to a protein-energy nutritional supplement during the first 1000 d of life decreased odds of mental distress in adulthood among men and women in Guatemala compared with receiving a low energy-no protein supplement or supplementation outside the 1000-d window. Data from participants (n = 1249) in a longitudinal cohort protein-energy supplementation trial (early-life, supplementation data from 1969 to 1977, ages 0­7 y; life course, outcome data from 2017­2018 follow-up, ages 40­57 y) were analyzed for associations between nutrition in the first 1000 d and mental distress in adulthood (WHO Self- Reporting Questionnaire 20 [SRQ-20]), controlling for early-life variables and current life stress; life course variables (e.g. education) were examined as potential mediators of this relation. Generalized linear mixed models and zero-inflated Poisson generalized linear mixed models were utilized. Both partial and full supplementation with Atole during the first 1000 d were associated with 63% (95% CI: 0.16, 0.87) and 56% (95% CI: 0.19, 1.03) lower odds, respectively, of experiencing mental distress in adulthood. Did not differ by sex. These inverse relations remained relatively unchanged (partial OR = 0.34 [95% CI: 0.14, 0.83]; full OR = 0.38 [95% CI: 0.16, 0.92]) after controlling for early-life and life course variables, including life stress. Protein-energy supplementation during the first 1000 d of life in Guatemala, where undernutrition is prevalent, may reduce the prevalence of later mental distress in adulthood. This effect appears to occur directly, rather than indirectly, through pathways of life course variables such as education, wealth, and marital status. Keywords: early childhood nutrition, protein-energy

Ultraprocessed Products as Food Fortification Alternatives: A Critical Appraisal from Latin America

Ultraprocessed products (UPPs), associated with obesity and non-communicable diseases (NCDs), are becoming predominant on the global market and a target for market-driven fortification initiatives. The aim of this article is to describe the implications of adding micronutrients to UPPs with excessive amounts of critical nutrients associated with NCDs and provide recommendations for legislation and policies. UPPs with added micronutrients such as breakfast cereals, sugarsweetened beverages, powder beverages, fruit juices, sauces, and bouillon cubes, among others, are commonly available and heavily promoted in Latin American countries. Misleading advertising of UPPs with added micronutrients and with excessive content of sugar, fat, and salt might increase the consumption of such products, giving them a "health halo effect" that leads consumers to overestimate their nutritional quality and healthfulness. Although international collections of standards such as the Codex Alimentarius provide some guidelines on this matter, countries need to implement national legislations, through a food systems approach, to regulate the marketing and labeling of UPPs. Lastly, there is still the need to foster research to close knowledge gaps and help countries to guide the process of food fortification strategies from a regulatory standpoint.

Age at childbirth and change in BMI across the life-course: evidence from the INCAP Longitudinal Study

Background: Parity has been associated with both short- and long-term weight gain in women. However, it is not clear if timing of parity across the reproductive age has different associations with BMI. Methods: To prospectively assess the association between age at childbirth and maternal change in BMI, we analyzed data from the ongoing INCAP Longitudinal Study, which started in 1969 in four villages in Guatemala. Cohort women (n=778) provided information on reproductive history and anthropometric measures were measured in 1988-89 (adolescence, 15 to 25y), 2002-04 (early adulthood, 26 to 36y) and 2015-17 (mid adulthood, 37 to 55y). We evaluated the associations of number of live births in the period preceding each study wave (1969-77 to 1988-89, 1988-89 to 2002-04 and 2002-04 to 2015-17) with BMI change in the same period using multivariable linear regression models. Results: Number of live births between 1988 and 89 and 2002-04 was positively associated with increased BMI, while there was not an association between number of live births and BMI in the other intervals. Women who had one, two, or three or more children between 1988 and 89 and 2002-04 had 0.90 (kg/m2, 95% CI: -0.55, 2.35), 2.39 (kg/m2, 95% CI: 1.09, 3.70) and 2.54 (kg/m2, 95% CI: 1.26, 3.82) higher BMI, respectively, than women who did not give birth in the same period. Conclusions: Our findings suggest that women who had three or more children during early adulthood gained more weight compared to women who had no children in the same period. In contrast, women who had children earlier or later in their reproductive lives did not gain additional weight compared to those who did not have children during that period. Childbirth may have different

Capacidad de investigación en obesidad infantil en Latinoamérica y en las poblaciones latinas de Estados Unidos: estado de la investigación, problemas, oportunidades y líneas de trabajo para el futuro / Research capacity in childhood obesity in Latin America and in the Latino populations of the United States: state of research, problems, opportunities and lines of work for the future

La obesidad infantil es un problema grave en Latinoamérica y entre la población latina de EE. UU. Para ser eficaces, las políticas de salud pública tienen que estar guiadas por evidencias contextuales pertinentes, lo cual exige una capacidad de investigación sostenida a través del tiempo. Los objetivos de este estudio son determinar la productividad de la investigación enfocada en las poblaciones latinas en Latinoamérica y Estados Unidos, y examinar los dominios de la capacidad de investigación (infraestructuras, programas de formación, mentoría, financiamiento y redes de contactos). Realizamos una revisión exploratoria de artículos indexados relacionados con la obesidad infantil publicados entre junio de 2015 y diciembre de 2019. Recabamos información sobre las percepciones de los investigadores latinoamericanos respecto a la capacidad de investigación en obesidad infantil a través de una encuesta en línea. Identificamos 612 artículos relacionados con la obesidad infantil (505 de Latinoamérica, 124 de EE. UU. y 17 de colaboraciones entre EE. UU. y Latinoamérica). Brasil, México, Chile, Colombia y Estados Unidos son los países con más publicaciones. Encontramos aproximadamente el mismo número de artículos sobre obesidad, nutrición y actividad física; sin embargo, observamos que la capacidad de investigación sobre actividad física está rezagada en otros dominios (formación en investigación, financiamiento y oportunidades para establecer contactos). Otras áreas de investigación complementarias, como el comportamiento sedentario, la ciencia de sistemas y los estudios de políticas, son poco frecuentes en Latinoamérica, pero más habituales en Estados Unidos, mientras que la investigación sobre el sueño es incipiente en ambas regiones. Para cumplir la promesa de crear un programa eficaz de colaboración transfronteriza para la prevención de la obesidad infantil será necesario invertir en todos los dominios de la capacidad de investigación y en todos los temas pertinentes.

High prevalence of non-alcoholic fatty liver disease and metabolic risk factors in Guatemala: A population-based study.

BACKGROUND: There are no data on the prevalence of non-alcoholic fatty liver disease (NAFLD) in general population samples in Guatemala or in other Central American countries. The prevalence and distribution of NAFLD and its associated risk factors were evaluated in a population-based sample of adults in Guatemala. METHODS: Cross-sectional study of 411 men and women 40 years of age or older residing in urban and rural areas of Guatemala. Metabolic outcomes included obesity, central obesity, hypercholesterolemia, diabetes, and metabolic syndrome (MetS). Liver disease outcomes included elevated liver enzymes, elevated Fatty Liver Index (FLI), and elevated FIB-4 score. RESULTS: The overall prevalence of obesity, central obesity, diabetes, and MetS were 30.9, 74.3, 21.6, and 64.2%, respectively. The fully-adjusted prevalence ratios (95% CI) for obesity, central obesity, diabetes, and MetS comparing women to men were 2.83 (1.86-4.30), 1.72 (1.46-2.02), 1.18 (1.03-1.34), and 1.87 (1.53-2.29), respectively. The overall prevalence of elevated liver enzymes (ALT or AST), elevated FLI, and elevated FIB-4 scores were 38.4, 60.1, and 4.1%, respectively. The fully-adjusted prevalence ratios (95% CI) for elevated liver enzymes (either ALT or AST) and elevated FLI score comparing women to men were 2.99 (1.84-4.86) and 1.47 (1.18-1.84), respectively. CONCLUSIONS: The prevalence of metabolic abnormalities and liver outcomes in this general population study was very high. The prevalence of metabolic and liver abnormalities was particularly high among women, an observation that could explain the atypical 1:1 male to female ratio of liver cancer in Guatemala.

Adipose tissue polyunsaturated fatty acids and metabolic syndrome among adult parents and their children.

BACKGROUND AND AIMS: Polyunsaturated fatty acids (PUFA) may play a role in the etiology of the metabolic syndrome (MetS). The aim of the study was to examine the associations of adipose tissue PUFA biomarkers with MetS among parents and children in Mesoamerica. METHOD AND RESULTS: We conducted a cross-sectional study among 468 parents and 201 children aged 7-12 y from the capital cities of Guatemala, El Salvador, the Dominican Republic, Honduras, Nicaragua, Panama, Costa Rica, and Belize, and Tuxtla Gutiérrez in Mexico. We measured PUFA biomarkers in gluteal adipose tissue by gas chromatography. In adults, MetS was defined according to the National Cholesterol Education Program's Adult Treatment Panel III definition. In children, we created an age- and sex-standardized metabolic risk score using abdominal circumference, the homeostasis model of insulin resistance, blood pressure, serum HDL cholesterol, and triglycerides. We estimated prevalence ratios of MetS and mean differences in metabolic score across quartiles of PUFA using multivariable-adjusted Poisson and linear regression models, respectively. Among adults, MetS was associated with low alpha-linolenic acid (ALA), high eicosapentaenoic acid (EPA), and low gamma-linolenic acid (GLA). It was linearly, positively associated with dihomo-gamma-linolenic acid (DGLA) and estimated Δ6-desaturase (D6D) activity. Among children, the metabolic score was positively associated with docosapentaenoic acid (DPA), DGLA, and D6D activity. CONCLUSIONS: Among Mesoamerican adults, MetS prevalence is inversely associated with adipose tissue ALA and GLA, and positively associated with EPA, DGLA, and the D6D index. Among children, metabolic risk score is positively associated with DPA, DGLA, and the D6D index.

Online oxygen monitoring using integrated inkjet-printed sensors in a liver-on-a-chip system.

The demand for real-time monitoring of cell functions and cell conditions has dramatically increased with the emergence of organ-on-a-chip (OOC) systems. However, the incorporation of co-cultures and microfluidic channels in OOC systems increases their biological complexity and therefore makes the analysis and monitoring of analytical parameters inside the device more difficult. In this work, we present an approach to integrate multiple sensors in an extremely thin, porous and delicate membrane inside a liver-on-a-chip device. Specifically, three electrochemical dissolved oxygen (DO) sensors were inkjet-printed along the microfluidic channel allowing local online monitoring of oxygen concentrations. This approach demonstrates the existence of an oxygen gradient up to 17.5% for rat hepatocytes and 32.5% for human hepatocytes along the bottom channel. Such gradients are considered crucial for the appearance of zonation of the liver. Inkjet printing (IJP) was the selected technology as it allows drop on demand material deposition compatible with delicate substrates, as used in this study, which cannot withstand temperatures higher than 130 °C. For the deposition of uniform gold and silver conductive inks on the porous membrane, a primer layer using SU-8 dielectric material was used to seal the porosity of the membrane at defined areas, with the aim of building a uniform sensor device. As a proof-of-concept, experiments with cell cultures of primary human and rat hepatocytes were performed, and oxygen consumption rate was stimulated with carbonyl-cyanide-4-(trifluoromethoxy)phenylhydrazone (FCCP), accelerating the basal respiration of 0.23 ± 0.07 nmol s-1/106 cells up to 5.95 ± 0.67 nmol s-1/106 cells s for rat cells and the basal respiration of 0.17 ± 0.10 nmol s-1/106 cells by up to 10.62 ± 1.15 nmol s-1/106 cells for human cells, with higher oxygen consumption of the cells seeded at the outflow zone. These results demonstrate that the approach of printing sensors inside an OOC has tremendous potential because IJP is a feasible technique for the integration of different sensors for evaluating metabolic activity of cells, and overcomes one of the major challenges still remaining on how to tap the full potential of OOC systems.

Nutrition status of children in Latin America.

The prevalence of overweight and obesity is rapidly increasing among Latin American children, posing challenges for current healthcare systems and increasing the risk for a wide range of diseases. To understand the factors contributing to childhood obesity in Latin America, this paper reviews the current nutrition status and physical activity situation, the disparities between and within countries and the potential challenges for ensuring adequate nutrition and physical activity. Across the region, children face a dual burden of undernutrition and excess weight. While efforts to address undernutrition have made marked improvements, childhood obesity is on the rise as a result of diets that favour energy-dense, nutrient-poor foods and the adoption of a sedentary lifestyle. Over the last decade, changes in socioeconomic conditions, urbanization, retail foods and public transportation have all contributed to childhood obesity in the region. Additional research and research capacity are needed to address this growing epidemic, particularly with respect to designing, implementing and evaluating the impact of evidence-based obesity prevention interventions.

Total adult cardiovascular risk in Central America / Riesgo cardiovascular total en adultos en América América

Objective. To evaluate prevalence of cardiovascular risk among adults 40 years and older using population-based samples from six Central American countries. Methods. Risk factors were derived from a multi-national cross-sectional survey implemented in 2003–2006, which included a sample of 4 202 participants aged 40 years and older. Charts produced by the World Health Organization and the International Society of Hypertension for the Region of the Americas sub-region B were used to predict risk on the basis of factors including age, sex, blood pressure, total serum cholesterol, smoking status, and diabetes status. Results. Overall, 85.9% of the population was classified as having < 10% risk for cardiovascular events during the following ten years. The likelihood of being in this risk group decreased with age in both males and females. Four percent of respondents were identified as having > 20% risk. More than 75% of those with a 30–40% risk had previously been identified by health services, and an additional 23% were identified during the study, suggesting they could be diagnosed by opportunistic screening for diabetes, hypertension and hypercholesterolemia. Results of bivariate analysis showed that respondents who were male, older, obese and/or less educated had higher risk for cardiovascular events, but a multivariate analysis including education indicated highest risks for older, obese, and less educated females. Conclusions. Measuring cardiovascular disease risk identifies most cases of (or at risk for) diabetes, hypertension and hypercholesterolemia among adults 40 years and older. This strategy can facilitate implementation of control programs and decrease disabilities and premature mortality.

Objetivo. Evaluar la prevalencia del riesgo de padecer enfermedades cardiovasculares en adultos de 40 años de edad o mayores mediante el uso de muestras poblacionales obtenidas de seis países de América Central. Métodos. Se tomaron los factores de riesgo de una encuesta transversal multinacional realizada entre 2003 y 2006, que incluyó una muestra de 4 202 participantes de 40 años de edad o mayores. Se usaron gráficos producidos por la Organización Mundial de la Salud y la Sociedad Internacional para la Hipertensión de la Región de las Américas, subregión B, para predecir el riesgo sobre la base de factores como la edad, el sexo, la presión arterial, las concentraciones totales de colesterol sérico, y la situación con respecto al tabaquismo y la diabetes. Resultados. En términos generales, 85,9% de la población quedó clasificada en el grupo con un riesgo menor de 10% de sufrir episodios cardiovasculares en el transcurso de los 10 años siguientes. La probabilidad de pertenecer a este grupo de riesgo disminuyó con la edad, tanto en los hombres como en las mujeres. Se determinó que 4% de los encuestados tenían un riesgo mayor de 20%. Más de 75% de los que tenían un riesgo de 30% a 40% ya habían sido identificados por los servicios de salud y otro 23% fue identificado durante el estudio, lo cual indica que los diagnósticos pueden hacerse mediante un tamizaje oportunista para la detección de diabetes, hipertensión e hipercolesterolemia. Según los resultados del análisis bivariado, los entrevistados de sexo masculino, de edad más avanzada, obesos o con poca escolaridad tenían un mayor riesgo de sufrir episodios cardiovasculares, pero un análisis multivariado que abarcó el nivel educativo reveló que los riesgos más altos los tienen las mujeres mayores, obesas y con poca instrucción. Conclusiones. El cálculo del riesgo cardiovascular permite identificar la mayoría de los casos (o personas con riesgo de presentar) diabetes, hipertensión e hipercolesterolemia en adultos de 40 años de edad o mayores. Esta estrategia puede facilitar la puesta en práctica de los programas de control, así como reducir la discapacidad y la mortalidad prematura.

Total adult cardiovascular risk in Central America / Riesgo cardiovascular total en adultos en América Central

OBJECTIVE:To evaluate prevalence of cardiovascular risk among adults 40 years and older using population-based samples from six Central American countries. METHODS: Risk factors were derived from a multi-national cross-sectional survey implemented in 2003-2006, which included a sample of 4 202 participants aged 40 years and older. Charts produced by the World Health Organization and the International Society of Hypertension for the Region of the Americas sub-region B were used to predict risk on the basis of factors including age, sex, blood pressure, total serum cholesterol, smoking status, and diabetes status. RESULTS: Overall, 85.9% of the population was classified as having < 10% risk for cardiovascular events during the following ten years. The likelihood of being in this risk group decreased with age in both males and females. Four percent of respondents were identified as having > 20% risk. More than 75% of those with a 30-40% risk had previously been identified by health services, and an additional 23% were identified during the study, suggesting they could be diagnosed by opportunistic screening for diabetes, hypertension and hypercholesterolemia. Results of bivariate analysis showed that respondents who were male, older, obese and/or less educated had higher risk for cardiovascular events, but a multivariate analysis including education indicated highest risks for older, obese, and less educated females. CONCLUSIONS: Measuring cardiovascular disease risk identifies most cases of (or at risk for) diabetes, hypertension and hypercholesterolemia among adults 40 years and older. This strategy can facilitate implementation of control programs and decrease disabilities and premature mortality.

RESUMEN OBJETIVO:Evaluar la prevalencia del riesgo de padecer enfermedades cardiovasculares en adultos de 40 años de edad o mayores mediante el uso de muestras poblacionales obtenidas de seis países de América Central. MÉTODOS: Se tomaron los factores de riesgo de una encuesta transversal multinacional realizada entre 2003 y 2006, que incluyó una muestra de 4 202 participantes de 40 años de edad o mayores. Se usaron gráficos producidos por la Organización Mundial de la Salud y la Sociedad Internacional para la Hipertensión de la Región de las Américas, subregión B, para predecir el riesgo sobre la base de factores como la edad, el sexo, la presión arterial, las concentraciones totales de colesterol sérico, y la situación con respecto al tabaquismo y la diabetes. RESULTADOS: En términos generales, 85,9% de la población quedó clasificada en el grupo con un riesgo menor de 10% de sufrir episodios cardiovasculares en el transcurso de los 10 años siguientes. La probabilidad de pertenecer a este grupo de riesgo disminuyó con la edad, tanto en los hombres como en las mujeres. Se determinó que 4% de los encues-tados tenían un riesgo mayor de 20%. Más de 75% de los que tenían un riesgo de 30% a 40% ya habían sido identificados por los servicios de salud y otro 23% fue identificado durante el estudio, lo cual indica que los diagnósticos pueden hacerse mediante un tami-zaje oportunista para la detección de diabetes, hipertensión e hipercolesterolemia. Según los resultados del análisis bivariado, los entrevistados de sexo masculino, de edad más avanzada, obesos o con poca escolaridad tenían un mayor riesgo de sufrir episodios cardiovasculares, pero un análisis multivariado que abarcó el nivel educativo reveló que los riesgos más altos los tienen las mujeres mayores, obesas y con poca instrucción. CONCLUSIONES: El cálculo del riesgo cardiovascular permite identificar la mayoría de los casos (o personas con riesgo de presentar) diabetes, hipertensión e hipercolesterolemia en adultos de 40 años de edad o mayores. Esta estrategia puede facilitar la puesta en práctica de los programas de control, así como reducir la discapacidad y la mortalidad prematura.

Total adult cardiovascular risk in Central America.

OBJECTIVE: To evaluate prevalence of cardiovascular risk among adults 40 years and older using population-based samples from six Central American countries. METHODS: Risk factors were derived from a multi-national cross-sectional survey implemented in 2003-2006, which included a sample of 4 202 participants aged 40 years and older. Charts produced by the World Health Organization and the International Society of Hypertension for the Region of the Americas sub-region B were used to predict risk on the basis of factors including age, sex, blood pressure, total serum cholesterol, smoking status, and diabetes status. RESULTS: Overall, 85.9% of the population was classified as having < 10% risk for cardiovascular events during the following ten years. The likelihood of being in this risk group decreased with age in both males and females. Four percent of respondents were identified as having > 20% risk. More than 75% of those with a 30-40% risk had previously been identified by health services, and an additional 23% were identified during the study, suggesting they could be diagnosed by opportunistic screening for diabetes, hypertension and hypercholesterolemia. Results of bivariate analysis showed that respondents who were male, older, obese and/or less educated had higher risk for cardiovascular events, but a multivariate analysis including education indicated highest risks for older, obese, and less educated females. CONCLUSIONS: Measuring cardiovascular disease risk identifies most cases of (or at risk for) diabetes, hypertension and hypercholesterolemia among adults 40 years and older. This strategy can facilitate implementation of control programs and decrease disabilities and premature mortality.

Preexcitación ventricular: dificultad en el tratamiento de un caso de Wolff-Parkinson-White en un deportista / Ventricular preexcitacion: difficulty in treatment of a case of Wolff-Parkinson-White in an athlete

El síndrome de Wolff-Parkinson White (WPW) puede detectarse en poblaciones de deportistas asintomáticos al realizar un electrocardiograma (ECG) o presentarse con episodios de palpitaciones secundarios a arritmias. Presentamos el caso de un jugador de baloncesto, con examen previo normal, a quien se detecta patrón de preexcitación, esporádicamente sintomático, en una evaluación médico-deportiva. Realizados los estudios correspondientes, se indicó tratamiento con ablación. En su evolución posterior al procedimiento, el paciente aún mantiene síntomas y en el trazado electrocardiográfico reaparece la vía accesoria. El objetivo de este trabajo es analizar el diagnóstico, tratamiento y control adecuados de esta patología en un deportista adolescente (AU)

The Wolff-Parkinson White syndrome (WPW) can be detected in asymptomatic athletes when we perform electrocardiogram (ECG) or may be submitted with episodes of palpitations secondary to arrhythmias. We report the case of a basketball player with previous normal examination, whom pre-excitation pattern is detected, in a sport medical evaluation. The patient is occasionally symptomatic. After appropriate studies, the ablation treatment was indicated. In its evolution after the procedure, the patient still has symptoms and in the electrocardiogram the accessory pathway reappears. The aim of this paper is to analyze the diagnosis, adequate treatment and follow of this disease in an adolescent athlete (AU)

A Síndrome de Wolff-Parkinson White (WPW) pode ser detectada em populações de esportistas assintomáticos ao realizar um eletrocardiograma (ECG) ou quando apresentam episódios de taquicardia ou arritmias. Este estudo descreveu o caso de um jogador de basquete com exame prévio normal, no qual detectou-se padrão de pré-excitação, esporadicamente sintomático, em uma avaliação médica esportiva. Após a revisão de literatura de estudos relevantes foi indicado tratamento com ablação. Em sua avaliação posterior ao tratamento, o paciente ainda manteve sintomas e traços eletrocardiográficos reaparecendo a via acessória. O objetivo deste trabalho foi analisar o diagnóstico, tratamento e controle adequado nesta doença em um atleta adolescente

[Relationship between fibrinolytic system and neurological diseases]. / Relacion entre el sistema fibrinolitico y las enfermedades neurologicas.

INTRODUCTION: The fibrinolytic system, also named plasminogen system is formed by a group of molecules that transforms plasminogen in its active form plasmine, which is able to participate in a number of pathophysiological processes. AIM: To carry out a review of the literature and an analysis of the relationship between fibrinolytic system and neurological diseases and its potential therapeutic implications. DEVELOPMENT: The fibrinolytic system has been involved in many different pathologies. Although its role in neurological diseases has always been thought to be scarce, many relations have been recently established. This way, fibrinolytic system seems to be involved not only in cerebrovascular diseases but also in epilepsy, inflammatory diseases such as multiple sclerosis, alterations of the dopaminergic system, learning disorders and several lesions of the peripheral nervous system. Different genotypes of several components of this system have been related as risk or protector factors to the development of these neurological diseases and information to this respect is rapidly increasing. CONCLUSIONS: A better knowledge about the relations between the fibrinolytic system and neurological diseases could clarify several aspects about their pathophysiology and it could suppose future prevention and treatment lines.

Prediction of fat-free mass by bioelectrical impedance analysis in older adults from developing countries: a cross-validation study using the deuterium dilution method.

OBJECTIVE: Several limitations of published bioelectrical impedance analysis (BIA) equations have been reported. The aims were to develop in a multiethnic, elderly population a new prediction equation and cross-validate it along with some published BIA equations for estimating fat-free mass using deuterium oxide dilution as the reference method. DESIGN AND SETTING: Cross-sectional study of elderly from five developing countries. METHODS: Total body water (TBW) measured by deuterium dilution was used to determine fat-free mass (FFM) in 383 subjects. Anthropometric and BIA variables were also measured. Only 377 subjects were included for the analysis, randomly divided into development and cross-validation groups after stratified by gender. Stepwise model selection was used to generate the model and Bland Altman analysis was used to test agreement. RESULTS: FFM = 2.95 - 3.89 (Gender) + 0.514 (Ht2/Z) + 0.090 (Waist) + 0.156 (Body weight). The model fit parameters were an R2, total F-Ratio, and the SEE of 0.88, 314.3, and 3.3, respectively. None of the published BIA equations met the criteria for agreement. The new BIA equation underestimated FFM by just 0.3 kg in the cross-validation sample. The mean of the difference between FFM by TBW and the new BIA equation were not significantly different; 95% of the differences were between the limits of agreement of -6.3 to 6.9 kg of FFM. There was no significant association between the mean of the differences and their averages (r= 0.008 and p= 0.2). CONCLUSIONS: This new BIA equation offers a valid option compared with some of the current published BIA equations to estimate FFM in elderly subjects from five developing countries.

The effect of nutritional supplementation on physical activity and exploratory behavior of Mexican infants aged 8-12 months.

BACKGROUND/OBJECTIVES: Physical activity and exploration in infancy affect physical and cognitive development. Nutritional supplementation improves activity in severely malnourished infants, but the evidence in mild-to-moderately malnourished and nutritionally at-risk infants is equivocal. We tested the effect of multiple-micronutrient supplementation on physical activity and exploration in Mexican infants. SUBJECTS/METHODS: Using a quasi experimental design, we analyzed data from a supplementation study that lacked a placebo-control group. We compared infants between 8 and 12 months measured at baseline who had received no supplementation (comparison group, n=78), with infants 8-12 months measured after 4 months of daily supplementation (treatment group, n=109). The treatment consisted of three supplement types: micronutrient powder, syrup (each containing only micronutrients) and a milk-based, fortified-food supplement (FFS; containing micronutrients and macronutrients). We formed the micronutrient-only group (MM) by combining the micronutrient powder and syrup groups. We measured activity and exploration by direct observation and used cluster analysis to form and characterize activity and exploration clusters. We performed logistic regression with activity or exploration cluster as the outcome variable and treatment versus comparison and MM or FFS versus comparison as the predictor variables. RESULTS: Treatment versus comparison increased the odds of being in the high activity (odds ratio (OR)=2.35, P<0.05) and high exploration (OR=1.87, P<0.05) cluster. MM increased the odds of being in the high activity (OR=2.64, P<0.05) cluster and FFS increased the odds (OR=3.16, P<0.05) of being in the high exploration cluster. CONCLUSIONS: Nutritional supplementation benefited activity and exploration in this sample of Mexican infants.

Exploración cardiológica / No disponible

El soplo cardiaco es el motivo de consulta más frecuente en cardiología pediátrica. La inmensa mayoría de los casos vienen referidos desde la consulta de pediatría de Atención Primaria, y es aquí donde se plantean las primeras dudas acerca de la naturaleza del soplo: funcional u orgánico. En el presente trabajo se pretende recordar los puntos principales en los que se apoya el reconocimiento o al menos, la sospecha, de una u otra clase, de soplo cardiaco. Sin olvidar la gran importancia que tiene una historia clínica y una exploración pormenorizadas, se detiene principalmente en la exploración cardiovascular y, especialmente, en la descripción de los diferentes soplos, con especial atención a los de carácter funcional o inocente. También se sugieren algunas de las principales razones para derivar a un niño portador de soplo cardiaco, a la consulta de cardiología pediátrica. En el taller se presentarán casos clínicos característicos cuyo diagnóstico se discutirá de manera interactiva con los alumnos

The cardiac murmur is the mean cause of consulting in Paediatric Cardiology. The majority of the cases is referred from the Primary Care paediatrician, and is here where the doubts about the nature of the murmur (functional or pathologic) are first posed. The aim of the present work is to remember the main aspects to distinguish them, with special emphasis in the description of the different kind of murmurs, without forgetting to make a detailed physical exam and a complete clinical history. Also, some of the mean reasons to refer the case to the paediatric cardiologist are exposed. In the workshop, some characteristic cases will be presented with discussion of their diagnosis

Evaluación de las medidas de grupa y muslo de la cría y ubre de la madre como indicadores fenotípicos en la selección temprana de llamas (Lama glama) para carne / Evaluation of hip and thigh measurements of the lama cria and the size of their dam's udders as phenotypic indicators for the early selection of lamas (Lama glama) for meat production

Se utilizó un rebaño de 82 llamas con sus respectivas crías para evaluar el área de la grupa y el volumen del muslo de la cría, y el tamaño de la glándula mamaria de las madres como posibles indicadores para la selección temprana de llamas para producción de carne. En las crías se evaluó el desarrollo del área de la grupa y el volumen del muslo a los 2, 8 y 15 meses de edad, así como la correlación de estas medidas con el peso corporal y el perímetro torácico. En las madres se evaluó la relación entre el tamaño de la ubre y el peso de la cría al destete. El tamaño de la grupa se calculó como una figura geométrica y su área se determinó con el software Autocad, y el tamaño del muslo se expresó como el volumen de un cono truncado. El incremento porcentual desde los 2 hasta los 15 meses de edad fue significativamente mayor (p<0.05) en el peso corporal (65.3%), área de la grupa (51.5%) y volumen del muslo (53.2%) que en el perímetro torácico (32.9%). Las diferencias establecidas en la clasificación por tamaño de la grupa a los dos meses de edad se mantuvieron en las mediciones realizadas a los 8 y 15 meses de edad (p<0.05), y estas diferencias se mantuvieron en las otras variables bajo estudio (volumen de muslo, perímetro torácico y peso corporal), lo cual indica que la tasa de incremento fue similar en ambos grupos. Los coeficientes de correlación entre el área de la grupa, volumen del muslo, peso corporal, perímetro torácico y edad desde los 2 a los 15 meses de edad fueron altos (p<0.001). Las correlaciones entre las medidas de la ubre de las madres y el peso corporal de las crías al destete fueron bajas, excepto para la relación de distancia entre pezones anteriores con peso de la cría al destete (0.46). Los ...

A flock of 82 llamas with their calves was used to evaluate the hip area and thigh volume of the young and the size of the mammary gland of the dam as possible indicators for early selection of llamas for meat production. In the young, the development of hips and thighs at 2, 8, and 15 months of age and the correlation of these measurements with body weight and chest circumference were evaluated, whereas in the dams, the relation between size of the mammary gland and body weight at weaning of the calf was evaluated. Size of hip was calculated as a geometric figure using the Autocad software, and the size of the thigh was expressed as the volume of a truncated cone. The increase of body weight (65.3%), hip area (51.5%), thigh volume (53.2%) were significantly higher (p<0.05) than the increase in chest circumference (32.9%). Animals were distributed into two groups according to hip area at 2 months of age and the differences in biometric measurements were kept at 8 and 15 months of age. These differences were also kept in the other variables (thigh volume, chest circumference and body weight), indicating that body development was similar in both groups. Correlation coefficients between hip area, thigh volume, chest circumference, body weight and age were significant (p<0.001). Coefficient correlations between udder measurements and body weight at weaning were small, with the exception of distance among anterior udder teats and body weight at weaning (0.46). Results ...