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1.
Acta Physiologica Sinica ; (6): 309-319, 2022.
Artigo em Chinês | WPRIM | ID: wpr-927607

RESUMO

Lipophagy is a kind of selective autophagy, which can selectively identify and degrade lipid droplets and plays an important role in regulating cellular lipid metabolism and maintaining intracellular lipid homeostasis. Exercise can induce lipophagy and it is also an effective means of reducing body fat. In this review, we summarized the relationship between exercise and lipophagy in the liver, pancreas, adipose tissue, and the possible molecular mechanisms to provide a new clue for the prevention and treatment of fatty liver, obesity and other related metabolic diseases by exercise.


Assuntos
Humanos , Autofagia/fisiologia , Gotículas Lipídicas/metabolismo , Metabolismo dos Lipídeos/fisiologia , Fígado , Doenças Metabólicas/metabolismo
2.
Arch. endocrinol. metab. (Online) ; 64(1): 71-81, Jan.-Feb. 2020. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1088771

RESUMO

ABSTRACT Objective Provide a comprehensive view of the events surrounding the sugar consumption, under conditions of energy equivalence; through the analysis of behavioral aspects of intake, and of biochemical, metabolic and physiological parameters, as well as the effect of this nutrient on the plasticity of adipose tissue. Materials and methods Newly weaned male Wistar rats were classified in two groups and subjected to the following normocaloric diets: standard chow diet or to high-sugar diet (HSD) ad libitum for 18 weeks. Results The animals submitted to the HSD were associated with a lower caloric intake during the 18 weeks of experimentation. However, the HSD induced a significant increase in body weight, white adipose tissue weight, adiposity index, Lee index, and the levels of triglycerides and very low-density lipoprotein in the serum. In addition, it induced glucose intolerance, insulin resistance and compensatory increase of insulin secretion by pancreatic β-cells. Also increased heart rate and induced hyperplasia, and hypertrophy of retroperitoneal visceral adipose tissue. In the liver, the HSD was associated with increased hepatic lipid content (i.e., triglycerides and cholesterol) and hepatomegaly. Conclusion The post-weaning consumption of HSD induces an adaptive response in metabolism; however, such an event is not enough to reverse the homeostatic imbalance triggered by the chronic consumption of this macronutrient, leading to the development of metabolic syndrome, irrespective of caloric intake. These findings corroborate recent evidence indicating that sugar is a direct contributor to metabolic diseases independent of a positive energy balance. Arch Endocrinol Metab. 2020;64(1):71-81


Assuntos
Animais , Masculino , Ratos , Ingestão de Energia , Tecido Adiposo/metabolismo , Metabolismo Energético , Açúcares da Dieta/metabolismo , Doenças Metabólicas/metabolismo , Obesidade/metabolismo , Ratos Wistar , Açúcares da Dieta/efeitos adversos , Açúcares da Dieta/sangue , Doenças Metabólicas/sangue
3.
Arq. bras. cardiol ; 113(5): 896-902, Nov. 2019. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1055036

RESUMO

Abstract Background: In view of the increased global prevalence of cardiovascular and hepatic diseases, the diet lipid content and its relationship with the accumulation of fat in hepatocytes have been investigated as key factors in preventing these diseases. Objective: To evaluate the metabolic effects of a high-lard diet supplemented or not with cholesterol on a modified dyslipidemia model. Methods: We divided 24 adult male Wistar rats into three groups: standard diet (STD - 4% lipids), high-lard diet (HLD - 21% lard), and high-lard and high-cholesterol diet (HL/HCD - 20% lard, 1% cholesterol, 0.1% cholic acid). After six weeks of treatment, blood and liver were collected for biochemical (serum lipid profile and liver enzymes) and morphological analyses. Statistical analysis included one-way analysis of variance (ANOVA), followed by Tukey test for mean comparisons, and a 5% probability was considered statistically significant. Results: Animals fed HL/HCD showed increased total cholesterol, triacylglycerol, LDL-c, non-HDL-c, alanine aminotransferase (ALT), and aspartate aminotransferase (AST) serum levels compared to those fed STD. In addition, the HL/HCD animals presented higher relative liver weight, with moderate macrovesicular hepatic steatosis and inflammatory infiltrate. Conclusion: A high-fat diet with lard (20%) and cholesterol (1%) triggered dyslipidemia with severe liver damage in rats in a shorter experimental time than the previously reported models. The high-lard diet without supplementation of cholesterol led to body weight gain, but not to dyslipidemia.


Resumo Fundamento: Tendo em vista o aumento da prevalência global de doenças cardiovasculares e hepáticas, o conteúdo lipídico da dieta e sua relação com o acúmulo de gordura nos hepatócitos têm sido investigados como fatores-chave na prevenção dessas doenças. Objetivo: Avaliar os efeitos metabólicos de uma dieta rica em banha suplementada com colesterol ou não, em um modelo modificado de dislipidemia. Métodos: Foram divididos 24 ratos Wistar machos adultos em três grupos: dieta padrão (DP - 4% de lipídios), dieta rica em banha (DRB - 21% de banha) e dieta rica em banha e colesterol (DRB/RC - 20% de banha, 1% de colesterol e 0,1% de ácido cólico). Após seis semanas de tratamento, o sangue e o fígado foram coletados para análises bioquímicas (perfil lipídico sérico e enzimas hepáticas) e morfológicas. A análise estatística incluiu análise de variância unidirecional (ANOVA), seguida do teste de Tukey para comparações de médias. Uma probabilidade de 5% foi considerada estatisticamente significativa. Resultados: Animais alimentados com DRB/RC apresentaram um aumento nos níveis séricos de colesterol total, triacilglicerol, LDL-c, não-HDL-c, alanina aminotransferase (ALT) e aspartato aminotransferase (AST) em comparação com aqueles alimentados com DP. Além disso, os animais tratados com DRB/RC apresentaram um peso relativo do fígado maior, com esteatose hepática macrovesicular moderada e infiltrado inflamatório. Conclusão: Uma dieta rica em gordura com banha (20%) e colesterol (1%) desencadeou dislipidemia com danos graves ao fígado em ratos em um tempo experimental menor do que os modelos previamente relatados. A dieta rica em banha sem suplementação de colesterol levou ao ganho de peso corporal, mas não à dislipidemia.


Assuntos
Animais , Masculino , Dislipidemias/induzido quimicamente , Dieta Hiperlipídica/efeitos adversos , Doenças Metabólicas/etiologia , Tamanho do Órgão , Aspartato Aminotransferases/sangue , Triglicerídeos/sangue , Peso Corporal , Gorduras na Dieta/efeitos adversos , Colesterol/efeitos adversos , Colesterol/sangue , Ratos Wistar , Alanina Transaminase/sangue , Modelos Animais de Doenças , Dislipidemias/metabolismo , Dislipidemias/sangue , Fígado Gorduroso/patologia , Inflamação , HDL-Colesterol/sangue , LDL-Colesterol/sangue , Fígado/metabolismo , Fígado/patologia , Doenças Metabólicas/metabolismo , Doenças Metabólicas/sangue
4.
Arch. argent. pediatr ; 116(1): 8-13, feb. 2018. tab
Artigo em Inglês, Espanhol | LILACS, BINACIS | ID: biblio-887427

RESUMO

Introducción: El mielomeningocele es un defecto congénito con cierre incompleto del tubo neural. Presenta alteraciones en la composición corporal y alta prevalencia de obesidad. Es difícil detectar el indicador más apropiado para diagnóstico nutricional por impresición de las medidas antropométricas. Objetivo: Describir en una población de pacientes con mielomeningocele seguidos en el "Hospital Garrahan", la composición corporal, gasto energético en reposo y trastornos metabólicos, comparando los pacientes con mielomeningocele obesos con una población control con obesidad multifactorial. Población y Métodos: Se realizó antropometría, impedanciometría, pliegues cutáneos, perímetro braquial, calorimetría indirecta y determinaciones bioquímicas a todos los pacientes con mielomeningocele entre junio/2013-abril/2014, previa firma del Consentimiento Informado. Resultados: Se evaluaron 131 pacientes de 0,718,6 años, clasificados según Score-Z de Índice de Masa Corporal en 15% bajo peso, 42% normopeso, 12% sobrepeso y 31% obesidad. Se encontró alta correlación (r²0,74) entre %masa grasa por impedanciometría vs calculado con pliegues cutaneos. Los pacientes con % masa grasa elevada vs %masa grasa normal tuvieron mayor score-Z de Indice de Masa Corporal (1,07 vs -0,27 p0,0001) aunque ambos valores se encontraban dentro de parámetros normales. Hubo menor gasto energético en reposo en los pacientes con mielomeningocele obesos comparado con el esperado y con obesos multifactoriales. Conclusiones: Se encontró alto porcentaje de sobrepeso/obesidad en la población con mielomeningocele. Los pliegues cutáneos serían más apropiados para detectar obesidad. Los pacientes con mielomeningocele obesos presentaron gasto energetico en reposo menor al esperado y a los controles. La indicación de energía debe ser personalizada.


Introduction. Myelomeningocele is a congenital defect that occurs when the neural tube fails to close completely. It causes body composition alterations and a high prevalence of obesity. It is difficult to detect the most adequate indicator for a nutritional diagnosis due to the impossibility of recording accurate anthropometric measurements. Objective. To describe body composition, resting energy expenditure and metabolic disorders in a population of patients with myelomeningocele managed at "Hospital Garrahan" by comparing obese patients with myelomeningocele and a control population with multifactorial obesity. Population and methods. An anthropometry, an impedance analysis, skinfold equations, arm circumference equations, indirect calorimetry, and biochemical determinations were done to all patients with myelomeningocele between June 2013 and April 2014, once the informed consent had been signed. Results. 131 patients aged 0.7-18.6 years were assessed; they were classified according to their body mass index Z-score into low weight (15%), normal weight (42%), overweight (12%), and obese (31%). A high correlation (r: 20.74) was observed between the fat mass % measured by impedance analysis versus that estimated using skinfolds. Patients with a high fat mass % had a higher body mass index Z-score than those with a normal fat mass % (1.07 versus -0.27, p: 0.0001) although both values were within normal parameters. A lower resting energy expenditure was observed among obese patients with myelomeningocele than predicted and in comparison with multifactorial obese controls. Conclusions. A high percentage of overweight/obesity was found in the population with myelomeningocele. Skinfold equations would be more adequate to detect obesity. Obese patients with myelomeningocele had a lower resting energy expenditure than predicted and in comparison with controls. Energy indication should be customized.


Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Composição Corporal , Meningomielocele/metabolismo , Obesidade Pediátrica/metabolismo , Doenças Metabólicas/metabolismo , Índice de Massa Corporal , Estudos Prospectivos , Meningomielocele/complicações , Metabolismo Energético , Obesidade Pediátrica/complicações , Doenças Metabólicas/complicações
5.
Med. infant ; 22(1): 2-10, Marzo 2015. tab, ilus
Artigo em Espanhol | LILACS | ID: biblio-904890

RESUMO

Introducción: Los craneofaringiomas son malformaciones histológicamente benignas que se sitúan entre el hipotálamo y la hipófisis, zonas con un rol determinante en la modulación de la saciedad. Aun siendo tumores benignos, presentan una considerable morbilidad. La obesidad está presente hasta en un 52% de los pacientes. Objetivo: evaluar factores de riesgo cardiovascular, composición corporal y gasto energético en pacientes con craneofaringioma, y compararlos con un grupo de obesos multifactoriales. Material y métodos: Se incluyeron todos los pacientes con resección quirúrgica de craneofaringioma, menores de 21 años, en seguimiento en nuestro centro entre mayo 2012 hasta abril 2013 que aceptaron participar por medio del consentimiento informado. Se realizó valoración antropométrica, composición corporal con impedanciometría, gasto energético con calorimetría indirecta y valoración de ingesta energética y de macronutrientes. Se determinó resistencia a la insulina (HOMA-IR) y dislipemia. Se comparó a los pacientes con craneofaringioma con obesidad, con un grupo de pacientes con obesidad multifactorial. Resultados: se estudiaron 39 pacientes. El 59% era obeso y presentó significativamente menor% de masa magra (62.4 vs 67.5 p=0.01) y mayor% de masa grasa (37.5 vs 32.5 p=0.01) comparados con los obesos multifactoriales. No se encontró diferencias en el compromiso metabólico entre los obesos con y sin antecedente de craneofaringioma. Se dividieron los pacientes en tertilos según% de gasto energético para categorizar en gasto bajo vs normal. Se encontró asociación positiva entre% de gasto energético y% de masa magra en obesos multifactoriales (68±1%; en los gasto normal vs 62.6± 1% en los gasto bajo: p 0,04). Sin diferencias dentro de la población de obesos con antecedente de craneofaringioma (62±2.7 en los gasto normal/alto vs 61.2±1.8% en los gasto bajo: p 0,8). El gasto energético basal (REE) fue menor en los pacientes con antecedente de craneofaringioma vs obesos multifactoriales, independientemente de la masa magra, lo que sustenta que existirían otros factores que actuarían disminuyendo el gasto energético. No hubo diferencia con respecto a la ingesta en ambos grupos estudiados. Conclusiones: los pacientes con antecedente de craneofaringioma presentan menor gasto energético no relacionado a la masa magra y similar ingesta energética comparado con obesos multifactoriales. No hubo diferencias en el compromiso metabólico entre los obesos con y sin antecedentes de craneofaringioma (AU)


Introduction: Craniopharyngiomas are histologically benign malformations located between hypothalamus and the pituitary gland, areas that play an important role in satiety modulation. Although the tumors are benign, they may cause significant morbidity. Obesity is found in up to 52% of patients. Aim: To assess cardiovascular risk factors, body composition, and energy expenditure in patients with craniopharyngioma, and to compare them to results in a group of children with multifactorial obesity. Material and methods: All patients who underwent surgical resection of craniopharyngioma, younger than 21 years of age, who were being followed-up at our center between May 2012 and April 2013 who gave their informed consent to participate were enrolled in the study. Anthropometric measurements, body composition with impedanciometer, energy expenditure with indirect calorimetry, and energy and macronutrient intake were evaluated. Insulin resistance (HOMA-IR) and dyslipidemia were determined. Patients with craniopharyngioma associated with obesity were compared to patients with multifactorial obesity. Results: Of 39 patients studied, 59% were obese and a significantly lower percentage of lean mass (62.4 vs 67.5 p=0.01) and a higher percentage of fat mass (37.5 vs 32.5 p=0.01) compared to multifactorial obese subjects. No differences were found in metabolic involvement between obese subjects with and those without a history of craniopharyngioma. Patients were divided into tertiles according to percentage of energy expenditure to categorize low versus normal expenditure. A positive correlation was found between percentage of energy expenditure and lean mass percentage in subjects with multifactorial obesity (68±1%; in those with normal energy expenditure versus 62.6±1% in those with low energy expenditure: p 0.04). No difference was found within the group of obese patients with a history of craniopharyngioma (62±2.7 in those with normal/high expenditure versus 61.2±1.8% in those with low expenditure: p 0.8). Baseline energy expenditure (BEE) was lower in craniopharyngioma patients than in those with multifactorial obesity, regardless of lean mass percentage, supporting the hypothesis that other factors may be involved in the decrease of energy expenditure. There was no difference in the food intake between both groups. Conclusions: Patients with a history of craniopharyngioma had a lower energy expenditure unrelated to lean mass and a similar energy intake compared to subjects with multifactorial obesity. No differences were found in metabolic involvement between obese subject with and those without a history of craniopharyngioma (AU)


Assuntos
Humanos , Pré-Escolar , Criança , Adolescente , Composição Corporal/fisiologia , Craniofaringioma/metabolismo , Ingestão de Energia/fisiologia , Doenças Metabólicas/metabolismo , Obesidade/metabolismo , Neoplasias Hipofisárias/metabolismo , Craniofaringioma/complicações , Estudos Transversais , Doenças Metabólicas/complicações , Obesidade/complicações , Estudos Observacionais como Assunto , Neoplasias Hipofisárias/complicações , Estudos Prospectivos
6.
Indian J Biochem Biophys ; 2013 Oct; 50(5): 345-356
Artigo em Inglês | IMSEAR | ID: sea-150244

RESUMO

Adenosine deaminase deficiency accounts for ~15-20% of severe combined immunodeficiency in humans. The gene for adenosine deaminase is located on chromosome 20q12-q13.11 and codes for an aminohydrolase that catalyzes the deamination of adenosine and deoxyadenosine to inosine and deoxyinosine, respectively. Absence of the enzyme causes a build-up of the substrates in addition to excess deoxyadenosine triphosphate, thereby compromising the regenerative capacity of the immune system. Due to underlying allelic heterogeneity, the disorder manifests as a spectrum, ranging from neonatal onset severe combined immunodeficiency to apparently normal partial adenosine deaminase deficiency. Tandem mass spectrometry coupled with high efficiency separation systems enables postnatal diagnosis of the disorder, while prenatal diagnosis relies on assaying enzyme activity in cultured amniotic fibroblasts or chorionic villi sampling. Screening of adenosine deaminase deficiency for relatives-at-risk may reduce costs of treatment and ensure timely medical intervention as applicable. This article reviews the genetic, biochemical and clinical aspects of adenosine deaminase deficiency.


Assuntos
Adenosina Desaminase/deficiência , Heterogeneidade Genética , Humanos , Doenças Metabólicas/diagnóstico , Doenças Metabólicas/genética , Doenças Metabólicas/metabolismo , Doenças Metabólicas/terapia
7.
Rev. Assoc. Med. Bras. (1992) ; 58(3): 383-387, May-June 2012. tab
Artigo em Português | LILACS | ID: lil-639565

RESUMO

A obesidade vem aumentando significativamente em todo o mundo, e os fatores ambientais, como o consumo excessivo de alimentos e o sedentarismo, são os principais fatores relacionados com a gênese dessa doença. Em animais de laboratório, a gênese da obesidade está relacionada, em sua maioria, com mutações genéticas, porém esse modelo é muito distante do encontrado nos humanos. A adoção de dietas hipercalóricas ou hiperlipídicas vem sendo utilizada como modelo de indução da obesidade em animais, devido à sua semelhança com a gênese e às respostas metabólicas decorrentes da obesidade em humanos. Assim, o objetivo dessa revisão de literatura é apresentar os diferentes tipos de dietas utilizadas para a indução da obesidade em roedores, as modificações metabólicas induzidas e identificar alguns cuidados que devem ser tomados para que esse modelo seja eficaz para o estudo das complicações relacionadas com a obesidade. Realizou-se busca na base de dados PubMed utilizando as expressões: 1-"hipercaloric diet" AND "rodent", 2- "hiperlipidic diet" AND "rodent", sendo selecionadas aquelas consideradas mais relevantes a partir dos critérios: data de publicação (1995-2011), a utilização de animais wild type, a descrição detalhada sobre a dieta utilizada e a análise de parâmetros bioquímicos e vasculares de interesse. Foram inseridas referências para introduzir assuntos como o aumento da prevalência da obesidade e questões relacionadas com a gênese da obesidade em humanos. Podemos considerar eficiente o modelo de obesidade induzida por dieta em roedores quando o objetivo é o estudo da fisiopatologia das complicações metabólicas e vasculares associadas à obesidade.


Obesity has been significantly increasing worldwide, and environmental factors such as excessive food intake and sedentary lifestyle are the main factors related to the genesis of this disease. In laboratory animals, the genesis of obesity is related mostly to genetic mutations, but this model is far from that found in humans. The use of hypercaloric or hyperlipidemic diets has been used as a model of obesity induction in animals, because of its similarity to the genesis and metabolic responses caused by obesity in humans. The objective of this review is to show the different types of diets used to induce obesity in rodents, the induced metabolic alterations, and to identify some points that should be taken into account so that the model can be effective for the study of obesity-related complications. A search was performed in the PubMed database using the following keywords: 1- "hypercaloric diet" AND "rodent", 2- "hyperlipidic diet" AND "rodent", selecting those considered the most relevant according to the following criteria: date of publication (1995-2011); the use of wild-type animals; detailed description of the diet used and analysis of biochemical and vascular parameters of interest. References were included to introduce subjects such as the increased prevalence of obesity and questions related to the genesis of obesity in humans. The model of diet-induced obesity in rodents can be considered effective when the objective is the study of the physiopathology of metabolic and vascular complications associated with obesity.


Assuntos
Animais , Ratos , Gorduras na Dieta/efeitos adversos , Doenças Metabólicas/etiologia , Obesidade/etiologia , Doenças Vasculares/etiologia , Ração Animal , Modelos Animais de Doenças , Doenças Metabólicas/metabolismo , Obesidade/metabolismo , Doenças Vasculares/metabolismo
8.
J. bras. nefrol ; 33(1): 50-54, jan.-mar. 2011. tab
Artigo em Português | LILACS | ID: lil-579704

RESUMO

Desordens metabólicas são frequentes em pacientes com nefrolitíase pediátrica. OBJETIVOS: Estudar as alterações metabólicas e anatômicas e a análise química dos cálculos encontrados em pacientes da nossa região. MÉTODOS: Este é um estudo retrospectivo em 158 crianças com evidência de formação recente de cálculos, destes apenas 109 concluíram a investigação metabólica. A investigação laboratorial consistiu de duas amostras de urina de 24 horas com dosagem de cálcio, ácido úrico, citrato, oxalato, sódio e creatinina, cistinúria qualitativa, pH urinário seguido de 12 horas de jejum e restrição hídrica, cultura da urina e análise química quando os cálculos foram disponíveis. As técnicas de imagem incluíram ultrassonografia do trato urinário e urografia excretora. RESULTADOS: Em 96,3 por cento das crianças alguma causa foi detectada. A principal alteração metabólica encontrada foi a hipercalciúria (73,4 por cento). Análise química dos cálculos mostrou oxalato de cálcio em 90,9 por cento dos casos. Alterações anatômicas foram encontradas em 18,0 por cento dos pacientes investigados, e a mais frequente foi a duplicação pieloureteral (28,6 por cento). CONCLUSÕES:Hipercalciúria foi a desordem mais encontrada, a alteração anatômica mais comum foi a duplicação pieloureteral e oxalato de cálcio foi o constituinte químico mais frequente. Este trabalho serviu para o conhecimento das características dos pacientes pediátricos portadores de nefrolitíase em nossa região.


Metabolic disorders are frequently observed in pediatric patients with renal lithiasis. OBJECTIVES: Study the metabolic and anatomical alterations and perform the chemical analysis of stones found in children with nephrolithiasis in our region. METHODS: A retrospective study on 158 children with evidence of recent renal stone formation was performed. One hundred and nine children concluded the metabolic study. Laboratory investigation consisted in two samples of 24-hour urine for calcium, uric acid, citrate, oxalate, sodium and creatinine; qualitative cystinuria, urinary pH following 12-hour fasting and water restriction, urine culture and chemical analysis when the stones were available. Renal imaging techniques included, at least, renal ultrasound and excretory urogram. RESULTS: A cause for nephrolithiasis was identified in 96.3 percent of children. The main metabolic alteration was hypercalciuria (73.4 percent). Chemical analysis of stones showed calcium oxalate in 90.9 percent of the cases. Anatomical alterations were found in 18.0 percent of the investigated cases and the most frequently found alteration was pyelo-ureteral duplication (28.6 percent). CONCLUSIONS: Hypercalciuria was the most frequently found disorder and pyelo-ureteral duplication was the most common anatomical alteration; moreover, calcium oxalate was the most frequent chemical constituent. The present study showed the characteristics of pediatric patients with nephrolithiasis in our region.


Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Pré-Escolar , Lactente , Doenças Metabólicas/metabolismo , Nefrolitíase/etiologia , Nefrolitíase/metabolismo , Nefrolitíase/metabolismo , Nefrolitíase/patologia , Estudos Retrospectivos
9.
IJEM-Iranian Journal of Endocrinology and Metabolism. 2011; 13 (4): 406-411
em Inglês, Persa | IMEMR | ID: emr-137484

RESUMO

Metabolic dyslipidemia and elevated oxidative stress are very common in patients with diabetes and metabolic syndrome. The aim of this study was to investigate the effects of melatonin, on the plasma lipid profile and levels of MDA in tissues of fructose fed rats. Twenty-four male Wistar rats were divided into three groups: 1. controls that received normal chow and tap water. 2. fructose group that received chow +10% fructose solution in drinking water. 3. The melatonin group that received chow +10% fructose solution+ daily injection of 10 mg/kg [BW] melatonin [ip]. After 8 weeks, plasma concentrations of triglycerides [TG], Total cholesterol [TC], low density lipoprotein [LDL], high density lipoprotein [HDL], and MDA in the tissues were measured and the Atherogenic index [AI] was calculated. The fructose fed rats showed significantly higher levels of TG, [p=0.01] compared to control rats, not in the melatonin group. HDL concentrations showed significant decrease in fructose rats, but not in the melatonin group. TC and LDL did not change significantly.Ai increase in fructose rats [p=0.00] and decrease in melatonin treated rats [p=0.01]. The fructose fed rats had higher MDA values compared with controls and melatonin administration decreased MDA values in heart, kidney and liver tissue. Melatonin intake can regulate metabolic dyslipidemia and decrease MDA levels in fructose fed rats


Assuntos
Animais de Laboratório , Masculino , Dislipidemias/tratamento farmacológico , Dislipidemias/induzido quimicamente , Frutose/metabolismo , Doenças Metabólicas/metabolismo , Modelos Animais de Doenças , Malondialdeído/sangue , Ratos Wistar
10.
Rev. méd. Chile ; 137(1): 106-114, ene. 2009. ilus, tab
Artigo em Espanhol | LILACS | ID: lil-511853

RESUMO

The advent of new antipsychotic drugs has improved the treatment of schizophrenic patients as well as those suffering from other severe psychiatric disorders. Its widespread use, however, has been associated to the development of obesity and metabolic disturbances such as diabetes mellitus, dyslipidemia and increased coronary risk. This has caused a serious concern, due to the high cardiovascular mortality that prematurely affects these patients. The etiology of these abnormalities is still a matter of debate, although it is generally believed that the new antipsychotic drugs have a control stimulating effect on appetite, and their use is associated to an increased level of cortisol and to an insulin-resistance state. In addition, there is an increase in inflammatory mediator and cytokine production, induced by the pathophysiology of the schizophrenic process itself and also caused by the direct action of the antipsichotic drugs. In spite of the mounting evidence, the metabolic management of these patients is still deñcient. A cióse follow-up in the initial stages of the antipsychotic treatment is recommended, as well as giving advice about diet and physical exercise. Finally, when obesity or other conditions associated to metabolic syndrome appear, the recommendation is to switch to drugs with less secondary effects or to add adjuvant medications to improve the overall evolution of these patients.


Assuntos
Humanos , Antipsicóticos/efeitos adversos , Doenças Metabólicas/induzido quimicamente , Esquizofrenia/tratamento farmacológico , Aumento de Peso/efeitos dos fármacos , Diabetes Mellitus/induzido quimicamente , Metanálise como Assunto , Doenças Metabólicas/metabolismo , Obesidade/induzido quimicamente
11.
Artigo em Inglês | IMSEAR | ID: sea-92042

RESUMO

Abnormalities of calcium, magnesium and phosphorus are common in hospitalized patients. Infrequently patients might present in the outpatient settings with non-specific symptoms that might be due to abnormalities of divalent cation (magnesium, calcium) or phosphorous metabolism. Several inherited disorders have been identified that result in renal or intestinal wasting of these elements. Physicians need to have a thorough understanding of the mechanism of calcium, magnesium and phosphorous metabolism and diagnoses disorders due to excess or deficiency of these elements. Prompt identification and treatment of the underlying disorders result in prevention of serious morbidity and mortality.


Assuntos
Cálcio/metabolismo , Hospitalização , Humanos , Hipercalcemia/fisiopatologia , Hiperfosfatemia/metabolismo , Hipofosfatemia/fisiopatologia , Hipotensão/fisiopatologia , Magnésio/metabolismo , Doenças Metabólicas/metabolismo , Fósforo/metabolismo , Fatores de Risco
12.
Rev. bras. nutr. clín ; 23(1): 13-20, jan.-mar. 2008. graf, tab
Artigo em Português | LILACS | ID: lil-560501

RESUMO

Objetivo do estudo foi investigar a prevalência da síndrome metabólica (SM) e sua relação com estágios da hipertensão arterial (HA) em hipertensos da Clínica de Hipertensão do Hospital das Clínicas-UFPE, entre 1996-2006. Trata-se de estudo observacional transversal, com 802 hipertensos selecionados de 1264, sendo 73,6% mulheres. A SM foi identificada segundo critério da International Diabetes Federation e a HA classificada pelas V Diretrizes Brasileiras Hipertensão. Foram analisadas variáveis socioeconômicas e prováveis associações entre SM e estágios da HA, utilizando testes qui-quadrado e Mann-Whitney (p<0,05). Observou-se alta prevalência de SM na amostra (68,6%), predominante nas mulheres (53,0%; p<0,01) e nas faixas etárias de 50-69 anos (38,8%) p>0,05. A renda per capita e escolaridade, com concentração da amostra nos níveis mais baixos (44,6 e 51,8% respectivamente), mostraram tendência regular decrescente e similar nos portadores (p<0,05) ou não (p>0,05) de SM. Notou-se uma elevada frequência da amostra no grupo com três componentes da SM (31,8%), obesidade abdominal (83,3%) e hiperglicemia (51,1%). Na categorização da PA, verificou-se uma concentração da amostra (68,4%) e dos indivíduos com (47,2%) ou sem SM (21,2%), no estágio 3 da HA. A SM não apresentou correlação positiva com os estágios da HA (p>0,05); somente com a pressão diastólica (PAD), sendo p<0,05. Concluindo-se, a prevalência de SM foi de 68,6%, com maior concentração no estágio 3 da HA e em mulheres. A não associação entre SM e estágios da HA diverge de achados da literatura. Entretanto, a correlação significativa entre PAD e SM corrobora de investigações recentes.


Study aimed to investigate the prevalence of metabolic syndrome (MS) and its relation to stages of hypertension (HA) in hypertensive patients of the Hypertension Clinic, Hospital das Clinicas-UFPE, between 1996-2006. This is an observational cross-sectional study with 802 hypertensive patients screened in 1264, and 73.6% women. MS was diagnosed with criteria of the International Diabetes Federation and hypertension classified by the V Brazilian Guidelines Hypertension. Socioeconomic variables were analyzed and possible associations between MS and stages of hypertension, using chi-square and Mann-Whitney test (p <0.05). There was a high prevalence of MS in the sample (68.6%), predominantly in women (53.0% p <0.01) and in the age groups 50-69 years (38.8%) p> 0, 05. The per capita income and schooling, with the sample concentration at lower levels (44.6% and 51.8% respectively) showed regular trend of decreasing and similar in patients (p <0.05) or not (P> 0, 05) SM. We noticed a high frequency of the sample in the group with three components of metabolic syndrome (31.8%), abdominal obesity (83.3%) and hyperglycemia (51.1%). In the categorization of the PA, there was a concentration of the sample (68.4%) and individuals (47.2%) or without SM 921.2%), stage 3 hypertension. SM did not show positive correlation with the stages of hypertension (p> 0.05) only with diastolic blood pressure (DBP), and p <0.05. Concluding, the prevalence of MS was 68.6%, with greater concentration in the third stage of hypertension and in women. The lack of association between MS and stages of hypertension differs from findings in the literature. However, the significant correlation between DBP and SM corroborates recent research.


Objetivo fue investigar la prevalencia del síndrome metabólico (SM) y su relación con los estadios de la hipertensión arterial (HA) en los pacientes hipertensos Clínica de Hipertensión en el Hospital de Clínicas-UFPE, entre 1996-2006. Este es un estudio observacional transversal con 802 pacientes hipertensos controlados en 1264, y las mujeres 73,6%. MS fue diagnosticado con criterios de la Federación Internacional de Diabetes y la hipertensión clasificados por las Directrices V brasileña hipertensión. Las variables socioeconómicas fueron analizadas y las posibles asociaciones entre los Estados miembros y las etapas de la hipertensión, el uso de chi-cuadrado y la prueba de Mann-Whitney (p <0,05). Hubo una elevada prevalencia de SM en la muestra (68,6%), prevalente en las mujeres (53,0%, p <0,01) y la edad de 50-69 años (38,8%) p> 0, 05. El ingreso per cápita y la escolarización, con la concentración de la muestra en los niveles inferiores (44,6% y 51,8% respectivamente), mostraron tendencia decreciente de regular y similar en pacientes (p <0,05) o no (p> 0, 05) SM. Nos dimos cuenta de una alta frecuencia de la muestra en el grupo con tres componentes del síndrome metabólico (31,8%), obesidad abdominal (83,3%) y la hiperglucemia (51,1%). Categorización de la PA, había una concentración de la muestra (68,4%) e individuos (47,2%) o sin EM 921,2%), etapa 3 la hipertensión. SM no muestra correlación con las etapas de la hipertensión (p> 0,05) sólo con la presión diastólica (PAD), y p <0,05. En conclusión, la prevalencia de SM fue del 68,6%, con una mayor concentración en la tercera fase de la hipertensión y en las mujeres. La falta de asociación entre la EM y etapas de la hipertensión se diferencia de los hallazgos en la literatura. Sin embargo, la correlación significativa entre el DBP y el SM corrobora las investigaciones recientes.


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Doenças Metabólicas/metabolismo , Doenças Metabólicas/patologia , Hipertensão/epidemiologia , Hipertensão/metabolismo , Obesidade/complicações , Fatores Socioeconômicos
13.
Journal of Korean Medical Science ; : 917-920, 2003.
Artigo em Inglês | WPRIM | ID: wpr-28609

RESUMO

Calcium pyrophosphate dihydrate (CPPD) crystal deposition disease is a disease of the elderly and extremely rare in young individuals. If young people develop CPPD crystal deposition disease, it may be associated with metabolic diseases such as hemochromatosis, hyperparathyroidism, hypophosphatasia, hypomagnesemia, Wilson's disease, hypothyroidism, gout, acromegaly, and X-linked hypophosphatemic rickets. Therefore, in young-onset polyarticular CPPD crystal deposition disease, investigation for predisposing metabolic conditions is warranted. We report a case of a young male patient with idiopathic CPPD crystal deposition disease, who did not have any evidences of metabolic diseases after thorough evaluations. As far as we know, this is the first report of a young male patient presented with idiopathic CPPD crystal deposition disease.


Assuntos
Adulto , Humanos , Masculino , Pirofosfato de Cálcio/metabolismo , Cartilagem Articular/metabolismo , Diagnóstico Diferencial , Articulação do Joelho/patologia , Doenças Metabólicas/metabolismo , Articulação do Ombro/patologia
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