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BACKGROUND: To assess oxidative effects induced by a high-calorie diet on the retina of Wistar rats and test the antioxidative effects of carnosine supplementation. METHODS: Wistar rats were randomly divided into the following groups: standard diet (SD), high-calorie diet (HcD), standard diet + carnosine (SD + Car), and high-calorie diet + carnosine (HcD + Car). The body weight, adiposity index, plasma glucose, total lipids, high-density lipoprotein (HDL), low-density lipoprotein (LDL), uric acid, creatinine, and triglycerides of the animals were evaluated. The retinas were analyzed for markers of oxidative stress. Hydrogen peroxide production was assessed by 2',7'-dichlorodihydrofluorescein diacetate (DCF) oxidation. The total glutathione (tGSH), total antioxidant capacity (TAC), protein carbonyl, and sulfhydryl groups of the antioxidant system were analyzed. RESULTS: TAC levels increased in the retinas of the SD + Car group compared to the SD group (p < 0.05) and in the HcD + Car group compared to the HcD group (p < 0.05). The levels of GSH and the GSSH:GSSG ratio were increased in the HcD + Car group compared to the SD + Car group (p < 0.05). An increase in the retinal carbonyl content was observed in the HcD group compared to the SD group (p < 0.05) and in the HcD + Car group compared to the SD + Car group (p < 0.05). A high-calorie diet (HcD) was also associated with a decrease in retinal sulfhydryl-type levels compared to the SD group (p < 0.05). CONCLUSION: The results suggest that feeding a high-calorie diet to rats can promote an increase in carbonyl content and a reduction in sulfhydryl groups in their retinas. The administration of carnosine was not effective in attenuating these oxidative markers. TRIAL REGISTRATION: Animal Ethics Committee of Botucatu Medical School - Certificate number 1292/2019.
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Antioxidantes , Carnosina , Ratas , Animales , Antioxidantes/farmacología , Carnosina/farmacología , Ratas Wistar , Estrés Oxidativo , Dieta , Suplementos DietéticosRESUMEN
AIM: Evaluate the influence of doxycycline, an anti-inflammatory and matrix metalloproteinase (MMP) inhibitor, on the attenuation of chronic doxorubicin-induced cardiotoxicity in rats. METHODS: We allocated male Wistar rats into four groups: control (C), doxorubicin (D), doxycycline (inhibitor of MMP, IM), and Dox + doxycycline (DIM). Groups IM and DIM received doxycycline (5 mg/kg, IP) once a week for 4 weeks. In addition, 48 h after every doxycycline injection, groups D and DIM received Dox (5 mg/kg, IP). We performed echocardiogram and evaluated TIMP-4 and collagen I protein expression, MMP-2 activity, and oxidative stress and myocardial metabolism. RESULTS: Doxorubicin promotes left atrium (LA) and left ventricle (LV) dilatation and decreases in LV fractional shortening, which was improved by doxycycline. Moreover, doxycycline attenuated the LV cardiomyocyte hypertrophy and collagen type I expression. Doxorubicin increased phosphofructokinase and decreased beta-hydroxyacyl Co-A dehydrogenase, pyruvate dehydrogenase, citrate synthase, and ATP synthase activity, which was partially attenuated by doxycycline. Lastly, doxycycline improved antioxidant enzyme activity in the DIM group. CONCLUSION: Doxorubicin increases oxidative stress and promotes changes in myocardial energy metabolism, accompanied by structural and functional changes. Doxycycline attenuated the doxorubicin-induced cardiotoxicity, at least in part, through changes in myocardial energy metabolism.
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The association between income inequality and dental caries on early childhood in Colombia was evaluated using a multi-level analysis. We analyzed data from the latest national oral survey (2014) and information about income in absolute and relative terms on a state-level. The outcomes were caries experience, and untreated caries. A multilevel logistic regression model was used (2 levels) with children/households nested within states. Age, gender, area-level socioeconomic position (SEP), household income and health insurance regime were the level 1 explanatory variables. For level 2, variables were the Gini coefficient, Unsatisfied Basic Needs (UBN) and Gross Domestic Product (GDP). Data from 5.250 children, aged 1, 3 and 5 years were evaluated. Prevalence of caries experience and untreated caries was 36.9% and 33.0% respectively. Both outcomes showed significant associations with age, low SEP and belonging to the subsidized health insurance regime: untreated dental caries was associated with living in low and very low SEP (OR: 1.72; 95%CI 1.42, 2.07 and OR: 1.69; 95%CI 1.36, 2.09 respectively), and subsidized health insurance scheme (OR: 1.58; 95%CI 1.11, 2.24). When the Gini, GDP and UBN indicators were included in the models, no significant associations were found.
Evaluamos la asociación entre inequidad en los ingresos y caries de la infancia temprana en Colombia, utilizando un análisis multinivel. Analizamos datos del último estudio nacional de salud bucal (2014) e información sobre ingresos en términos absolutos y relativos a nivel departamental. Los desenlaces fueron experiencia de caries y caries no tratada. Se utilizó un modelo de regresión logística multinivel con dos niveles: niños/familias (nivel 1) anidados en departamentos (nivel 2). En el nivel 1 se consideraron variables de edad, sexo, posición socioeconómica (PSE) de la vivienda, ingresos del hogar y régimen de aseguramiento en salud. Para el nivel 2 las variables fueron coeficiente Gini, Necesidades Básicas Insatisfechas (NBI) y Producto Interno Bruto (PIB). Se evaluaron datos de 5.250 niños de 1, 3 y 5 años, 36.9% tenían experiencia de caries y 33.0% caries no tratada. Los desenlaces mostraron asociaciones significativas con edad, PSE baja del hogar y pertenecer al régimen subsidiado de salud. Para caries no tratada se encontraron asociaciones con PSE baja o muy baja (OR: 1.72; IC95% 1.42, 2.07 y OR: 1.69; IC95% 1.36, 2.09 respectivamente) y régimen subsidiado de salud (OR: 1.58; IC95% 1.11, 2.24). No se encontraron asociaciones significativas con indicadores de coeficiente Gini, PIB y NBI.
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Caries Dental , Niño , Preescolar , Colombia/epidemiología , Caries Dental/epidemiología , Susceptibilidad a Caries Dentarias , Humanos , Renta , Análisis MultinivelRESUMEN
Resumen Evaluamos la asociación entre inequidad en los ingresos y caries de la infancia temprana en Colombia, utilizando un análisis multinivel. Analizamos datos del último estudio nacional de salud bucal (2014) e información sobre ingresos en términos absolutos y relativos a nivel departamental. Los desenlaces fueron experiencia de caries y caries no tratada. Se utilizó un modelo de regresión logística multinivel con dos niveles: niños/familias (nivel 1) anidados en departamentos (nivel 2). En el nivel 1 se consideraron variables de edad, sexo, posición socioeconómica (PSE) de la vivienda, ingresos del hogar y régimen de aseguramiento en salud. Para el nivel 2 las variables fueron coeficiente Gini, Necesidades Básicas Insatisfechas (NBI) y Producto Interno Bruto (PIB). Se evaluaron datos de 5.250 niños de 1, 3 y 5 años, 36.9% tenían experiencia de caries y 33.0% caries no tratada. Los desenlaces mostraron asociaciones significativas con edad, PSE baja del hogar y pertenecer al régimen subsidiado de salud. Para caries no tratada se encontraron asociaciones con PSE baja o muy baja (OR: 1.72; IC95% 1.42, 2.07 y OR: 1.69; IC95% 1.36, 2.09 respectivamente) y régimen subsidiado de salud (OR: 1.58; IC95% 1.11, 2.24). No se encontraron asociaciones significativas con indicadores de coeficiente Gini, PIB y NBI.
Abstract The association between income inequality and dental caries on early childhood in Colombia was evaluated using a multi-level analysis. We analyzed data from the latest national oral survey (2014) and information about income in absolute and relative terms on a state-level. The outcomes were caries experience, and untreated caries. A multilevel logistic regression model was used (2 levels) with children/households nested within states. Age, gender, area-level socioeconomic position (SEP), household income and health insurance regime were the level 1 explanatory variables. For level 2, variables were the Gini coefficient, Unsatisfied Basic Needs (UBN) and Gross Domestic Product (GDP). Data from 5.250 children, aged 1, 3 and 5 years were evaluated. Prevalence of caries experience and untreated caries was 36.9% and 33.0% respectively. Both outcomes showed significant associations with age, low SEP and belonging to the subsidized health insurance regime: untreated dental caries was associated with living in low and very low SEP (OR: 1.72; 95%CI 1.42, 2.07 and OR: 1.69; 95%CI 1.36, 2.09 respectively), and subsidized health insurance scheme (OR: 1.58; 95%CI 1.11, 2.24). When the Gini, GDP and UBN indicators were included in the models, no significant associations were found.
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BACKGROUND: Skeletal muscle is the most important organ for whole-body glucose homeostasis. However, it has been suggested that obesity-related inflammation could be involved in insulin resistance and diabetes mellitus type 2 (DM2) development due several mechanisms, among them, the reduced expression of the glucose transporter type 4 (GLUT-4). Gamma-oryzanol (γOz) is a compound present in the whole grain of rice that presents anti-inflammatory and antioxidant activities. The aim of this study was to verify if the effect antioxidant and anti-inflammatory of yOz attenuate insulin resistance in skeletal muscle of obese rats by increasing GLUT- 4 expression. METHODS: Male Wistar rats (±187 g) were initially randomly distributed into 2 experimental groups (control, n = 6, and high sugar-fat diet (HSF), n = 12) for 20 weeks. At week 20th of this study, once obesity and insulin resistance were detected in the HSF group, animals were divided to begin the treatment with γOz or continue receiving HSF for 10 more weeks. At the end it was analyzed nutritional, metabolic, inflammatory and oxidative stress parameters and GLUT-4 protein expression. RESULTS: The treatment improved insulin resistance, reduced inflammation, increased antioxidant response and GLUT-4 expression. CONCLUSION: It is possible to conclude that the antioxidant and anti-inflammatory activity of yOz attenuates insulin resistance by increasing GLUT-4 expression in skeletal muscle of obese animals.
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Antiinflamatorios/farmacología , Antioxidantes/farmacología , Transportador de Glucosa de Tipo 4/metabolismo , Resistencia a la Insulina , Músculo Esquelético/patología , Obesidad/patología , Fenilpropionatos/farmacología , Fenómenos Fisiológicos Nutricionales de los Animales/efectos de los fármacos , Animales , Glucemia/metabolismo , Ayuno/sangre , Prueba de Tolerancia a la Glucosa , Inflamación/patología , Insulina/sangre , Peroxidación de Lípido/efectos de los fármacos , Masculino , Músculo Esquelético/efectos de los fármacos , Obesidad/sangre , Obesidad/fisiopatología , Carbonilación Proteica/efectos de los fármacos , Ratas WistarRESUMEN
BACKGROUND: Special needs schools (SNS) educate children and young people with major neurological disabilities who are at high risk of oropharyngeal dysphagia (OD) and malnutrition (MN). We aimed to assess the prevalence of OD, MN, dehydration (DH), and oral health (OH) in students at an SNS. METHODS: A cross-sectional observational study was conducted at SNS L'Arboç, Catalonia, Spain. We assessed (a) demographics, health status, comorbidities, and gross motor function classification system (GMFCS), (b) swallowing function, oral-motor evaluation, masticatory capacity, and EDACS classification for eating and drinking abilities, (c) nutritional and DH status (anthropometry, bioimpedance and dietary records), and (d) OH (Oral Hygiene Index Simplified). RESULTS: A total of 33 students (mean age 13.3 years; 39.4% level V of GMFCS) were included. Main diagnosis was cerebral palsy at 57.6%. All students presented OD, 90.6% had impaired safety, 68.7% were at levels II-III of EDACS, and 31.3% required PEG; furthermore, 89.3% had chronic MN, 21.4% had acute MN, 70% presented intracellular DH, and 83.9% presented impaired OH. CONCLUSION: MN, DH, OD, and poor OH are highly prevalent conditions in students with cerebral palsy and other neurological disabilities and must be specifically managed through nutritional and educational strategies. The multidisciplinary team at SNS should include healthcare professionals specifically trained in these conditions.
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Parálisis Cerebral/diagnóstico , Trastornos de Deglución/diagnóstico , Deglución , Niños con Discapacidad , Desnutrición/diagnóstico , Estado Nutricional , Higiene Bucal , Estado de Hidratación del Organismo , Adolescente , Desarrollo del Adolescente , Fenómenos Fisiológicos Nutricionales de los Adolescentes , Factores de Edad , Parálisis Cerebral/epidemiología , Parálisis Cerebral/fisiopatología , Parálisis Cerebral/terapia , Niño , Desarrollo Infantil , Estudios Transversales , Trastornos de Deglución/epidemiología , Trastornos de Deglución/fisiopatología , Trastornos de Deglución/terapia , Conducta Alimentaria , Femenino , Humanos , Masculino , Desnutrición/epidemiología , Desnutrición/fisiopatología , Desnutrición/terapia , Destreza Motora , Prevalencia , Pronóstico , Medición de Riesgo , Factores de Riesgo , España/epidemiologíaRESUMEN
Abstract Introduction: Obesity, diabetes, and hypertension are common risk factors for chronic kidney disease (CKD). CKD arises due to many pathological insults, including inflammation and oxidative stress, which affect renal function and destroy nephrons. Rice bran (RB) is rich in vitamins and minerals, and contains significant amount of antioxidants. The aim of this study was to evaluate the preventive effect of RB on renal disease risk factors. Methods: Male Wistar rats (±325 g) were divided into two experimental groups to received a high sugar-fat diet (HSF, n = 8) or high sugar-fat diet with rice bran (HSF + RB, n = 8) for 20 weeks. At the end, renal function, body composition, metabolic parameters, renal inflammatory and oxidative stress markers were analyzed. Results: RB prevented obesity [AI (HSF= 9.92 ± 1.19 vs HSF + RB= 6.62 ± 0.78)], insulin resistance [HOMA (HSF= 83 ± 8 vs. HSF + RB= 42 ± 11)], dyslipidemia [TG (HSF= 167 ± 41 vs. HSF + RB=92 ± 40)], inflammation [TNF-α (HSF= 80 ± 12 vs. HSF + RB=57 ± 14), IL-6 (903 ± 274 vs. HSF + RB=535 ± 277)], oxidative stress [protein carbonylation (HSF= 3.38 ± 0.18 vs. HSF + RB=2.68 ± 0.29), RAGE (HSF=702 ± 36 vs. RSF + RB=570 ± 190)], and renal disease [protein/creatinine ratio (HSF=1.10 ± 0.38 vs. HSF + RB=0.49 ± 0.16)]. Conclusion: In conclusion, rice bran prevented renal disease by modulating risk factors.
Resumo Introdução: Obesidade, diabetes e hipertensão arterial são fatores de risco comuns para doenças renais crônicas (DRC). A DRC surge devido a muitos insultos patológicos, incluindo inflamação e estresse oxidativo, que afetam a função renal e destroem os néfrons. O farelo de arroz (FA) é rico em vitaminas e minerais, e contém uma quantidade significativa de antioxidantes. O objetivo deste estudo foi avaliar o efeito preventivo do FA nos fatores de risco de doenças renais. Métodos: Ratos Wistar machos (±325 g) foram divididos em dois grupos experimentais para receber uma dieta rica em gordura e açúcar (DRGA, n = 8) ou uma dieta rica em gordura e açúcar com farelo de arroz (DRGA + FA, n = 8) por 20 semanas. Ao final, foram analisados a função renal, composição corporal, parâmetros metabólicos, marcadores renais inflamatórios e de estresse oxidativo. Resultados: FA preveniu a obesidade [IA (DRGA= 9,92 ± 1,19 vs. DRGA + FA= 6,62 ± 0. 78)], resistência à insulina [HOMA (DRGA= 83 ± 8 vs DRGA + FA= 42 ± 11)], dislipidemia [TG (DRGA= 167 ± 41 vs. DRGA + FA=92 ± 40)], inflamação [FNT-α (DRGA= 80 ± 12 vs. DRGA + FA=57 ± 14), IL-6 (903 ± 274 vs. DRGA + FA= 535 ± 277)], estresse oxidativo [carbonilação de proteína (DRGA= 3. 38 ± 0,18 vs. DRGA + FA=2,68 ± 0,29), RAGE (DRGA=702 ± 36 vs. DRGA + FA=570 ± 190)], e doença renal [relação proteína/creatinina (DRGA=1,10 ± 0,38 vs. DRGA + FA=0,49 ± 0,16)]. Conclusão: Em conclusão, o farelo de arroz preveniu doenças renais através da modulação dos fatores de risco.
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Animales , Masculino , Ratas , Oryza , Factores de Riesgo , Ratas Wistar , Estrés Oxidativo , Azúcares , Dieta Alta en Grasa/efectos adversos , Riñón/fisiologíaRESUMEN
Nonalcoholic steatohepatitis (NASH) is a pathological manifestation with a progressive incidence in response to the epidemic of hepatic steatosis caused primarily by excessive energy intake. The present study unravels affected biological processes and functions by the presence of NASH in rats using a label-free quantitative proteomic strategy. NASH was induced by a Western high-sugar and high-fat diet for 20 weeks. The liver tissue was collected for histology and for a mass spectrometry-based proteomic protocol. The NASH group showed severe lipidosis, hepatocyte ballooning, and the presence of collagen deposition. Among upregulated proteins in NASH perilipin-2 (Plin-2; F6QBA3; difference [diff]: 2.29), ferritin heavy (Fth1; Q66HI5; diff: 2.19) and light (Ftl1; P02793; diff: 1.75) chains, macrophage migration inhibitory factor 1 (Mif; P30904; diff: 1.69), and fibronectin (Fn1; F1LST1; diff: 0.35) were observed, whereas among downregulated proteins, plectin (Q6S399; diff: -3.34), some Cyp2 family proteins of the cytochrome P450 complex, glutathione S-transferases, flavin-containing monooxygenase 1 (Fmo1; P36365; diff: -2.08), acetyl-CoA acetyltransferase 2 (Acat2; Q5XI22; diff: -2.25), acyl-CoA oxidase 2 (Acox2; F1LNW3; diff: -1.59), and acyl-CoA oxidase 3 (Acox3; F1M9A7; diff: -2.41) were observed. Also, biological processes and functions such as LPS/IL-1 inhibition of RXR, fatty acid metabolism, Nrf2-mediated oxidative stress response, xenobiotic metabolism, and PXR/RXR and CAR/RXR activations were predicted to be affected. In conclusion, the liver of rats with NASH induced by Western diet shows a decreased capacity of metabolizing lipids, fatty acids, and xenobiotic compounds that predispose fibrosis development.
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Hígado Graso/metabolismo , Regulación de la Expresión Génica , Hígado/metabolismo , Proteómica , Animales , Dieta Occidental , Hígado Graso/etiología , Hígado Graso/patología , Hígado/patología , Masculino , Ratas , Ratas WistarRESUMEN
Metabolic syndrome (MetS) include obesity as a critical feature and is strongly associated with risk of cardiovascular disease (CVD). Insights into mechanisms involved in the pathophysiology of these clinical manifestations are essential for the development of therapeutic strategies. Thus, Western diets (WD) have been widely employed in diet-induced obesity (DIO) model. However, there are variations in fat and sugar proportions of such diets, making comparisons challenging. We aimed to assess the impact of two types of the WD on metabolic status and cardiac remodeling, to achieve a DIO model that better mimics the human pathogenesis of MetS-induced CVD. Male Wistar rats were distributed into three groups: control diet, Western diet fat (WDF), and Western diet sugar (WDS) for 41 weeks. Metabolic and inflammatory parameters and cardiac changes were characterized. WDF and WDS feeding promoted higher serum triglycerides, glucose intolerance, and insulin resistance, while just WDF presented inflammation in adipose tissue. WDF-fed rats showed increased catalase activity and malondialdehyde (MDA) and carbonyl protein levels, suggesting cardiac oxidative stress, while WDS-fed rats only raised MDA. Both WD equally elevated protein expressions involved in lipid metabolism, but only WDF downregulated the glycolysis pathway. Furthermore, the mechanical myocardial function was impaired in obese rats, being more relevant in WDF. In conclusion, both WD effectively triggered MetS features, although inflammation was detected just on the WDF-fed animals. Moreover, the WDF promoted a more pronounced functional, metabolic, and oxidative cardiac disorder, suggesting to be an adequate model for studying CVD in the scenario of MetS.
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Dieta Occidental/efectos adversos , Síndrome Metabólico/etiología , Obesidad/etiología , Remodelación Ventricular , Animales , Metabolismo Energético , Intolerancia a la Glucosa/etiología , Intolerancia a la Glucosa/metabolismo , Inflamación/etiología , Inflamación/metabolismo , Masculino , Síndrome Metabólico/metabolismo , Obesidad/metabolismo , Estrés Oxidativo , Ratas WistarRESUMEN
INTRODUCTION: Obesity, diabetes, and hypertension are common risk factors for chronic kidney disease (CKD). CKD arises due to many pathological insults, including inflammation and oxidative stress, which affect renal function and destroy nephrons. Rice bran (RB) is rich in vitamins and minerals, and contains signiï¬cant amount of antioxidants. The aim of this study was to evaluate the preventive effect of RB on renal disease risk factors. METHODS: Male Wistar rats (±325 g) were divided into two experimental groups to received a high sugar-fat diet (HSF, n = 8) or high sugar-fat diet with rice bran (HSF + RB, n = 8) for 20 weeks. At the end, renal function, body composition, metabolic parameters, renal inflammatory and oxidative stress markers were analyzed. RESULTS: RB prevented obesity [AI (HSF= 9.92 ± 1.19 vs HSF + RB= 6.62 ± 0.78)], insulin resistance [HOMA (HSF= 83 ± 8 vs. HSF + RB= 42 ± 11)], dyslipidemia [TG (HSF= 167 ± 41 vs. HSF + RB=92 ± 40)], inflammation [TNF-α (HSF= 80 ± 12 vs. HSF + RB=57 ± 14), IL-6 (903 ± 274 vs. HSF + RB=535 ± 277)], oxidative stress [protein carbonylation (HSF= 3.38 ± 0.18 vs. HSF + RB=2.68 ± 0.29), RAGE (HSF=702 ± 36 vs. RSF + RB=570 ± 190)], and renal disease [protein/creatinine ratio (HSF=1.10 ± 0.38 vs. HSF + RB=0.49 ± 0.16)]. CONCLUSION: In conclusion, rice bran prevented renal disease by modulating risk factors.
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Oryza , Animales , Dieta Alta en Grasa/efectos adversos , Riñón/fisiología , Masculino , Estrés Oxidativo , Ratas , Ratas Wistar , Factores de Riesgo , AzúcaresRESUMEN
The literature has reported a higher prevalence of negative clinical outcomes due to Coronavirus disease 19 (COVID-19) in obese individuals. This can be explained by the cytokine storm, result from the cytokine production from both obesity and viral infection. Gamma-oryzanol (γOz) is a compound with anti-inflammatory and antioxidant activities. However, little is known about the γOz action as a possible agonist of peroxisome proliferator-activated receptor gamma (PPAR-γ). The aim of this study was to test the hypothesis that γOz attenuates the cytokine storm by stimulating PPAR-γ in the adipose tissue. METHODS: Male Wistar rats were randomly divided into three experimental groups and fed ad libitum for 30 weeks with control diet (C, n = 6), high sugar-fat diet (HSF, n = 6) or high sugar-fat diet + γOz (HSF + γOz, n = 6). HSF groups also received water + sucrose (25%). The γOz dose was 0.5% in the chow. Evaluation in animals included caloric intake, body weight, adiposity index, plasma triglycerides, and HOMA-IR. In adipose tissue was evaluated: PPAR-γ gene and protein expression, inflammatory and oxidative stress parameters, and histological analysis. RESULTS: Adipose tissue dysfunction was observed in HSF group, which presented remarkable PPAR-γ underexpression and increased levels of cytokines, other inflammatory markers and oxidative stress. The γOz treatment prevented adipose tissue dysfunction and promoted PPAR-γ overexpression. CONCLUSION: Natural compounds as γOz can be considered a coadjutant therapy to prevent the cytokine storm in COVID-19 patients with obesity conditions.
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Tejido Adiposo/metabolismo , Tratamiento Farmacológico de COVID-19 , Síndrome de Liberación de Citoquinas/tratamiento farmacológico , Estrés Oxidativo/efectos de los fármacos , PPAR gamma/metabolismo , Fenilpropionatos/farmacología , SARS-CoV-2/metabolismo , Tejido Adiposo/patología , Tejido Adiposo/virología , Animales , COVID-19/metabolismo , COVID-19/patología , Síndrome de Liberación de Citoquinas/metabolismo , Síndrome de Liberación de Citoquinas/patología , Síndrome de Liberación de Citoquinas/virología , Inflamación/tratamiento farmacológico , Inflamación/metabolismo , Inflamación/patología , Inflamación/virología , Masculino , Distribución Aleatoria , Ratas , Ratas WistarRESUMEN
BACKGROUND/AIMS: Considering the importance of inflammation on obesity-related disorders pathogenesis, including cardiac dysfunction, the interest in natural anti-inflammatory therapeutic strategies has emerged. The lycopene is a carotenoid presents in tomato and red fruits that displays anti-inflammatory properties. In this sense, we will evaluate the anti-inflamma-tory effect of tomato-oleoresin supplementation on obesity- related cardiac dysfunction by modulating myocardial calcium kinetic. METHODS: Male Wistar rats were initially randomized into 2 experimental groups: (Control, n= 20) or high sugar- fat diet (HSF, n=20) for 20 weeks. At week 20th, once detected the cardiac dysfunction (cardiac remodeling, systolic and diastolic dysfunction) by echocardiography in HSF group, animals were randomly divided to begin the treatment with tomato-oleoresin, performing 4 groups: Control (n= 10); Control + tomato tomato-oleoresin supplementation (Control + Ly, n= 10); HSF (n= 10) or HSF + tomato tomato-oleoresin supplementation (HSF + Ly, n= 10). Tomato oleoresin was mixed with maize oil equivalent to 10mg lycopene/kg body weight (BW) per day and given orally, by gavage, every morning for a 10-week period. It was analyzed cardiac inflammatory parameters by the enzyme-linked immunosorbent assay (ELISA) and in vivo (echocardiography) and in vitro (studying isolated papillary muscles from the left ventricle) cardiac function. The groups were compared by Two-Way analysis of variance (ANOVA). RESULTS: The HSF diet induced cardiac dysfunction (FS(%) C: 60.4±1.3; C+Ly: 60.9±1.3; HSF: 51.7±1.3; HSF+Ly: 59.4±1.4) and inflammation (TNF-α: C:1.88±0.41; C+Ly: 1.93±1.01; HSF: 4.58±1.99; HSF+Ly: 2.03±0.55; IL-6: C:0.58±0.16; C+Ly: 0.40±0.16; HSF: 2.00±0.45; HSF+Ly: 0.53±0.26; MCP-1: C:0.31±0.08; C+Ly: 0.43±0.22; HSF: 1.54±0.32; HSF+Ly: 0.50±0.16). Tomato-oleoresin supplementation improved cardiac remodeling and dysfunction, cardiac inflammation and myocardial calcium kinetic. CONCLUSION: the anti-inflammatory effect of tomato-oleoresin supplementation treated the obesity-induced cardiac dysfunction by modulating myocardial calcium handling.
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Antiinflamatorios/farmacología , Calcio/metabolismo , Dieta Alta en Grasa , Cardiopatías/tratamiento farmacológico , Inflamación/prevención & control , Obesidad/complicaciones , Extractos Vegetales/farmacología , Animales , Cardiopatías/etiología , Cardiopatías/metabolismo , Cardiopatías/patología , Inflamación/etiología , Inflamación/metabolismo , Inflamación/patología , Solanum lycopersicum , Masculino , Ratas , Ratas Wistar , Recuperación de la FunciónRESUMEN
Solanum paniculatum L. or popularly known as "jurubeba" is an herbal medicinal plant. A few studies have investigated its biological effects; however, research aimed at elucidating the redox balance effects from its fruits has not been reported so far. ROS interplays in various fields of medicine such as chemotherapy. Here, we evaluated antioxidant and inflammatory activities of the hydroethanolic extract of Solanum Paniculatum L. (HESPL) fruits in breast cancer cells, as well as its phytochemical profile. The antioxidant profile (carotenoids and phenolic compounds) was obtained by HPLC-DAD-UV and HPLC-APCI-MS. Cancer cell lines and human vein endothelial cells (HUVECs) were cultivated and treated with 1.87-30 µg/mL of HESPL for 24 hrs. Cytotoxicity, oxidative, and inflammation biomarkers were evaluated. The dose of 30 µg/mL of the HESPL extract presented cytotoxicity in the MCF-7 cell line. However, for MDA-MB-231, the cytotoxicity was observed in the dose of 1.87 g/mL. The 1.87 µg/mL and 3.75 µg/mL doses decreased the concentration of IL-6 in MCF-7 cells. In the MDA-MB-231 cells, the HESPL did not decrease the IL-6 concentration; however, in the doses of 15 and 30 µg/mL, an increase in this parameter was observed. The HESPL increased IL-1ß concentration in HUVECs. The ROS level in MCF-7 was elevated only at the 30 µg/ml dose. Regarding MDA-MB-231, HESPL promoted increased ROS levels at all doses tested. HUVEC showed no increase in ROS under any dose. HESPL treatment may modulate cytotoxicity, ROS, and cytokine levels due to its phytochemical profile, and it has shown an antioxidant or anti-inflammatory effect.
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Citocinas/metabolismo , Etanol/química , Frutas/química , Extractos Vegetales/farmacología , Especies Reactivas de Oxígeno/metabolismo , Solanum/química , Agua/química , Carotenoides/análisis , Línea Celular , Supervivencia Celular/efectos de los fármacos , HumanosRESUMEN
The system redox imbalance is one of the pathways related to obesity-related cardiac dysfunction. Lycopene is considered one of the best antioxidants. The aim of this study was to test if the tomato-oleoresin would be able to recovery cardiac function by improving ß-adrenergic response due its antioxidant effect. A total of 40 animals were randomly divided into two experimental groups to receive either the control diet (Control, n = 20) or a high sugar-fat diet (HSF, n = 20) for 20 weeks. Once cardiac dysfunction was detected by echocardiogram in the HSF group, animals were re- divided to begin the treatment with Tomato-oleoresin or vehicle, performing four groups: Control (n = 6); (Control + Ly, n = 6); HSF (n = 6) and (HSF + Ly, n = 6). Tomato oleoresin (10 mg lycopene/kg body weight (BW) per day) was given orally every morning for a 10-week period. The analysis included nutritional and plasma biochemical parameters, systolic blood pressure, oxidative parameters in plasma, heart, and cardiac analyses in vivo and in vitro. A comparison among the groups was performed by two-way analysis of variance (ANOVA). Results: The HSF diet was able to induce obesity, insulin-resistance, cardiac dysfunction, and oxidative damage. However, the tomato-oleoresin supplementation improved insulin-resistance, cardiac remodeling, and dysfunction by improving the ß-adrenergic response. It is possible to conclude that tomato-oleoresin is able to reduce the oxidative damage by improving the system's ß-adrenergic response, thus recovering cardiac function.
RESUMEN
The transcription factor Nrf2 (nuclear factor erythroid 2-related factor 2) is one of the most important oxidative stress regulator in the human body. Once Nrf2 regulates the expression of a large number of cytoprotective genes, it plays a crucial role in the prevention of several diseases, including age-related disorders. However, the involvement of Nrf2 on these conditions is complex and needs to be clarified. Here, a brief compilation of the Nrf2 enrollment in the pathophysiology of the most common age-related diseases and bring insights for future research on the Nrf2 pathway is described. This review shows a controversial response of this transcriptional factor on the presented diseases. This reinforces the necessity of more studies to investigate modulation strategies for Nrf2, making it a possible therapeutic target in the treatment of age-related disorders.
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Envejecimiento/patología , Factor 2 Relacionado con NF-E2/metabolismo , Estrés Oxidativo , Envejecimiento/metabolismo , Enfermedad de Alzheimer/metabolismo , Animales , Diabetes Mellitus Tipo 2/metabolismo , Humanos , Hipertensión/metabolismo , Factor 2 Relacionado con NF-E2/genética , Osteoporosis/metabolismo , Enfermedad de Parkinson/metabolismoRESUMEN
OBJECTIVE: To assess the association between children's oral health and academic performance using the most recent US national data, a decade after the last assessment using similar previous data. STUDY DESIGN: Data from the 2016-2017 National Survey of Children's Health for 45â711 children aged 6-17 years were analyzed. Children's oral health measures were indicators of specific oral health problems and parent-rated oral health. Academic performance measures included problems at school and missing school days. Regression models were employed adjusting for relevant demographic, socioeconomic, and health characteristics and state effects. Analyses also were conducted stratifying by child's age, sex, household income, and type of health insurance. RESULTS: We found significant associations across all the evaluated academic outcomes and oral health measures. Children with oral health problems were more likely to have problems at school (OR 1.56, 95% CI 1.32-1.85), miss at least 1 school day (OR 1.54, 95% CI 1.28-1.85), and miss more than 3 or 6 school days (OR 1.39, 95% CI 1.20-1.61 and OR 1.39, 95% CI 1.14-1.69; respectively). These associations were generally larger when using the child's oral health rating. Poor oral health was consistently related to worse academic performance across age, sex, household income, and health insurance type subgroups. CONCLUSIONS: Children's oral health status continues to be strongly linked to their academic outcomes. This evidence highlights the need for broad population-wide policies and integrated approaches to reduce academic deficits and promote children's health and development, of which oral health is an important component.
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Rendimiento Académico , Salud Bucal , Adolescente , Niño , Femenino , Humanos , Masculino , Factores de Tiempo , Estados UnidosRESUMEN
The high consumption of fat and sugar contributes to the development of obesity and co-morbidities, such as dyslipidemia, hypertension, and cardiovascular disease. The aim of this study was to evaluate the association between dyslipidemia and cardiac dysfunction induced by western diet consumption. Wistar rats were randomly divided into two experimental groups and fed ad libitum for 20 weeks with a control diet (Control, n = 12) or a high-sugar and high-fat diet (HSF, n = 12). The HSF group also received water + sucrose (25%). Evaluations included feed and caloric intake; body weight; plasma glucose; insulin; uric acid; HOMA-IR; lipid profile: [total cholesterol (T-chol), high-density lipoprotein (HDL), non-HDL Chol, triglycerides (TG)]; systolic blood pressure, and Doppler echocardiographic. Compared to the control group, animals that consumed the HSF diet presented higher weight gain, caloric intake, feed efficiency, insulin, HOMA-IR, and glucose levels, and lipid profile impairment (higher TG, T-chol, non-HDL chol and lower HDL). HSF diet was also associated with atrial-ventricular structural impairment and systolic-diastolic dysfunction. Positive correlation was also found among the following parameters: insulin versus estimated LV mass (r = 0.90, p = 0.001); non-HDL versus deceleration time (r = 0.46, p = 0.02); TG versus deceleration time (r = 0.50, p = 0.01). In summary, our results suggest cardiac remodeling lead by western diet is associated with metabolic parameters.
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Remodelación Atrial , Enfermedades Cardiovasculares/sangre , Dieta Occidental/efectos adversos , Obesidad/sangre , Animales , Glucemia/metabolismo , Presión Sanguínea , Peso Corporal , Colesterol/sangre , Dislipidemias/sangre , Insulina/sangre , Masculino , Distribución Aleatoria , Ratas , Ratas Wistar , Triglicéridos/sangre , Ácido Úrico/sangreRESUMEN
BACKGROUND: Violence in Colombia has a history of over 50 years. Between 1985 and 2012 an estimated of 220,000 Colombians have died and about 6,000,000 have been displaced by violence. OBJECTIVE: To describe and compare the prevalence of some problems and mental disorders in the adult population in Colombia, taking into account the characteristics of the municipality, as regards its history of violence or armed conflict. METHODS: The results for adults (over 18 years) of some problems and mental disorders were taken from the ENSM-2015. The municipalities were classified according to the presence and intensity of the conflict using the classification proposed by the CERAC. Disorders were measured using CIDI-CAPI, and problems with AUDIT, modified PCL (Post-Traumatic Stress Disorder Checklist). An estimate was also made of psychoactive substances consumption. RESULTS: A total of 10,870 people were interviewed, of whom 5,429 had not changed residence. There was had permanent conflict in 21.8% of the municipalities, 65.5% had a discontinued conflict, and only 12.7% had been pacified or had no conflict. The intensity of the conflict was reported as high by 31.8% of the people. Violent municipalities have a higher prevalence of anxiety disorders, depression, possible Post-Traumatic Stress Disorder, and smoking. Alcohol consumption was more common in municipalities with less intense conflict. CONCLUSIONS: The municipalities classified as having high levels of violence have a higher prevalence of mental disorders and the majority of the mental problems.
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Trastornos de Ansiedad/epidemiología , Conflictos Armados/psicología , Trastornos Mentales/epidemiología , Trastornos del Humor/epidemiología , Adolescente , Adulto , Consumo de Bebidas Alcohólicas/epidemiología , Colombia/epidemiología , Femenino , Encuestas Epidemiológicas , Humanos , Masculino , Persona de Mediana Edad , Prevalencia , Fumar/epidemiología , Trastornos por Estrés Postraumático/epidemiología , Trastornos Relacionados con Sustancias/epidemiología , Violencia/psicología , Adulto JovenRESUMEN
Introducción. La expectativa de vida al nacer es un indicador que se ha utilizado para hacerle seguimiento al desarrollo humano dentro de los países y entre ellos. Este ha venido incrementándose gracias a los progresos en el campo de la medicina y la tecnología. Sin embargo, el acceso a la atención, la tecnología y los factores determinantes sociales que mejoran el estado de salud, han sido desiguales entre departamentos y países. Objetivo. Estimar la ´inequidad' de la expectativa de vida, para cada ´departamento' de Colombia según sexo, en el periodo 2000 a 2009. Materiales y métodos. Se llevó a cabo un estudio ecológico. Se estimó la expectativa de vida al nacer por ´departamentos' en Colombia, mediante el método de las tablas de vida, entre 2000 y 2009. Las fuentes de datos fueron los registros de defunción y las series de población estimadas a partir del censo del 2005 del Departamento Administrativo Nacional de Estadística (DANE). Se estimó la ´inequidad' en la expectativa de vida por ´departamentos', comparando con el mejor referente mundial en los años 2000, 2006 y 2009, y con el mejor referente interno en el periodo 2000 a 2009. Resultados. Se encontraron años perdidos de vida potencial que fueron hasta de 21 años en el periodo, al hacer la comparación con el mejor referente externo. La diferencia entre los ´departamentos' fue hasta de 15,3 años perdidos de vida potencial. Hubo ´departamentos' en los que aumentó la brecha de años perdidos de vida potencial. Conclusiones. Colombia mantiene grandes diferencias en los años perdidos de vida potencial entre sus ´departamentos'.
Introduction: Life expectancy is one of the measurements that have been used to monitor socioeconomic development within and among countries. During the last 30 years, life expectancy has increased worldwide mainly due to medical and technological developments. However, access to health care, new technologies and social determinants remain unevenly distributed among regions and countries in the world. Objective: To assess inequalities in life expectancy by gender and regions (departments) in Colombia between 2000 and 2009. Materials and methods: Ecological study. Life expectancy was estimated for each Colombian department using yearly life tables from 2000 to 2009. We used data from the death registries and the estimated population series, provided by the Departamento Administrativo Nacional de Estadística (DANE). For the study period, estimates of life expectancy by departments were compared with those from Japan for the years 2000, 2006 and 2009, which is the country with the highest life expectancy in the world, and with the Colombian department with the highest life expectancy from 2000 to 2009. Results: Compared with the highest life expectancy in the world, Colombian departments showed differences ranged between 5.7 and 21 years. We found significant differences between departments, with the largest difference being 15.3 years. Additionally, in some departments life expectancy decreased during the analyzed period. Conclusions: This study identified differences in life expectancy in Colombian departments suggesting inequalities in health and living conditions among them. These differences increased in some departments during the period 2000-2009.