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Id: biblio-1056410
Autor: El-Bidawy, Mahmoud H; Bastawy, Nermeen; Mansour-Khalifa, Mohamed; Abdulla, Hanan; Elsayed, Rania; Rashed, Laila; Niazy, Marwa; Al-Ghamdi, Sameer; Haidara, Mohamed A.
Título: High-fat diet augments ovariectomy-induced bone resorption in rats / Dieta rica en grasas aumenta la resorción ósea inducida por ovariectomía en ratas
Fonte: Int. j. morphol;38(1):129-134, Feb. 2020. tab, graf.
Idioma: en.
Projeto: King Khalid University.
Resumo: Menopause complications such as cardiovascular and bone diseases represent a major public health concern. We sought to determine whether a high-fat diet (HFD) can augment ovariectomy-induced bone resorption in a rat model of menopause possibly via the upregulation of the inflammatory biomarkers and dyslipidemia. Rats were either ovariectomized and fed a standard laboratory chow (model group) or were ovariectomized and fed with a HFD for 15 weeks before being sacrificed. Ovariectomy significantly (p<0.05) increased body weight, dyslipidemia, insulin resistance, pro-inflammatory cytokines tumor necrosis factor-a (TNF-α) and interleukin-6 (IL-6), and biomarker of bone resorption, nuclear factor-kB (NF-kB), which were augmented by feeding animals with a HFD. This was confirmed through immunohistochemical study, where ovariectomy induced expression of p65/NF-kB protein in tibia bone sections of the model group, which were augmented by HFD. HFD augments ovariectomy-induced bone resorption through increased inflammatory biomarkers and NF-kB in rats.

Las complicaciones de la menopausia, como las enfermedades cardiovasculares y óseas, representan un importante problema de salud pública. Intentamos determinar si una dieta alta en grasas (HFD) puede aumentar la resorción ósea inducida por ovariectomía en un modelo de menopausia en ratas, a través de la regulación positiva de los biomarcadores inflamatorios y la dislipidemia. Las ratas fueron ovariectomizadas y alimentadas con una comida estándar de laboratorio (grupo modelo) o fueron ovariectomizadas y alimentadas con un HFD durante 15 semanas antes de ser sacrificadas. La ovariectomía aumentó significativamente (p <0,05) el peso corporal, dislipidemia, resistencia a la insulina, citocinas proinflamatorias, factor de necrosis tumoral a (TNF-α) e interleucina-6 (IL-6), y el biomarcador de resorción ósea, factor nuclear-kB (NF-kB), que se aumentaron alimentando animales con un HFD. Esto se confirmó a través del estudio inmunohistoquímico, donde la ovariectomía indujo la expresión de la proteína p65 / NF-kB en secciones de hueso de tibia del grupo modelo, que fueron aumentadas por HFD. HFD aumenta la resorción ósea inducida por ovariectomía a través del aumento de biomarcadores inflamatorios y NF-kB en ratas.
Descritores: Reabsorção Óssea/patologia
Dieta Hiperlipídica/efeitos adversos
-Triglicerídeos/análise
Reabsorção Óssea/etiologia
Resistência à Insulina
Menopausa
Ovariectomia/efeitos adversos
Ratos Wistar
Modelos Animais de Doenças
Dislipidemias/complicações
Limites: Animais
Feminino
Ratos
Responsável: CL1.1 - Biblioteca Central


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Id: biblio-1039065
Autor: Santos, Ed Wilson; Oliveira, Dalila Cunha; Hastreiter, Araceli; Silva, Graziela Batista; Beltran, Jackeline Soares de Oliveira; Rogero, Marcelo Macedo; Fock, Ricardo Ambrósio; Borelli, Primavera.
Título: Short-term high-fat diet affects macrophages inflammatory response, early signs of a long-term problem
Fonte: Braz. J. Pharm. Sci. (Online);55:e17561, 2019. tab, graf.
Idioma: en.
Resumo: Obesity is a chronic inflammatory disease that affects millions of people worldwide. Most studies observe the effects of a high-fat diet (HFD) in 10-12 weeks. This work investigated the effects induced by a HFD administered for 6 weeks on the nutritional status of mice and some aspects of the inflammatory response in mouse peritoneal macrophages. Male Swiss Webster mice, 2-3 months of age, were fed a control diet or HFD for 6 weeks. After this period, the mice were euthanized, and peritoneal macrophages were collected for immunoassays and assessment of biochemical parameters. A HFD was associated with increased cholesterol, insulin resistance, C-reactive protein (CRP), leptin, and serum resistin levels. Lipopolysaccharide (LPS)- stimulated adipocyte cultures of animals subjected to a HFD showed increased production of proinflammatory cytokines such as tumor necrosis factor alpha (TNF-α), interleukin-1 (IL-1), and interleukin-6 (IL-6). However, peritoneal macrophages of the HFD group showed no changes in the levels of these cytokines. LPS-stimulated peritoneal macrophages from HFD-treated animals showed a reduction in mRNA expression of TNF-α and IL-6, as well as a decrease in expression of the transcription factor nuclear factor-kappa B (NF-kB). In conclusion, HFD treatment for 6 weeks induces similar signs to metabolic syndrome and decreases the capacity of peritoneal macrophages to develop an appropriate inflammatory response to a bacterial component
Descritores: Macrófagos Peritoneais/classificação
Dieta Hiperlipídica/efeitos adversos
-NF-kappa B/farmacocinética
Síndrome Metabólica
Limites: Animais
Masculino
Camundongos
Responsável: BR40.1 - DBD - Divisão de Biblioteca e Documentacão do Conjunto das Químicas


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Id: biblio-837656
Autor: Fernandes, Melina Ribeiro; Lima, Nayara Vieira de; Rezende, Karoline Silva; Santos, Isabela Caroline Marques; Silva, Iandara Schettert; Guimarães, Rita de Cássia Avellaneda.
Título: Animal models of obesity in rodents. An integrative review
Fonte: Acta cir. bras;31(12):840-844, Dec. 2016. tab.
Idioma: en.
Resumo: ABSTRACT PURPOSE: To perform an integrative review of the main animal disease models in rodents used for obesity. METHODS: Research was conducted in the CAPES Portal database using the following keywords "obesity animal models, diet and rodents", published between the years 2010 to 2016. We found 108 articles, of which 19 were selected and analyzed in full for this study. RESULTS: Larger part of publications occurred in the last 6 years, the rats (n = 10) were used in the same proportion mice (n = 10). The choice of male animals (n = 18) and age greater than 21 days (n = 17) showed a major highlight. The greater than 5 week follow-up period (n = 18) was the most applied. A High Fat Diet was the most used in studies (n = 18) . CONCLUSIONS: Male rodents continue to be considered the species most used in experimental studies to induce obesity, also was found variations of age to the beginning of the experiment. For the most part are follow-up time studies along with the use of High Fat Diet.
Descritores: Roedores
Experimentação Animal/estatística & dados numéricos
Dieta
Modelos Animais de Doenças
Obesidade/fisiopatologia
-Dieta Hiperlipídica
Limites: Animais
Masculino
Feminino
Camundongos
Ratos
Tipo de Publ: Revisão
Responsável: BR1.1 - BIREME


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Id: lil-777091
Autor: Xie, Hong; Huang, Liu; Li, Yayun; Zhang, Han; Liu, Hao.
Título: Endoplasmic reticulum stress and renal lesion in mice with combination of high-fat diet and streptozotocin-induced diabetes
Fonte: Acta cir. bras;31(3):150-155, Mar. 2016. graf.
Idioma: en.
Projeto: National Natural Science Foundation of China; . Creative Scientific Research Project for Postgraduate of Bengbu Medical College.
Resumo: ABSTRACT PURPOSE : To investigate in the kidney the pathologic changes and expression of GRP78 and CHOP in the Kunming (KM) mice with combination of high-fat diet and streptozotocin-induced diabetes. METHODS : Sixty two male KM mice were randomly divided into a normal control (NC) group (n=20) and a high-fat diet (HFD) group (n=42). After a four-week dietary manipulation, the KM mice in the HFD group were injected intraperitoneally with streptozotocin to induce diabetes. After diabetic models were successfully established, the kidneys were excised and conserved for further test. RESULTS : No significant difference in the body weight was observed after the dietary manipulation (p=0.554). After the streptozotocin was injected, fasting blood glucose levels in the diabetes group (DM) were significantly higher than that in the NC group (p<0.0001). Glomerular atrophy observed under light microscope in the DM group was more serious compared with the NC group. The expression of GRP78 and CHOP in the kidneys of the mice in the DM group were higher compared with the NC group. CONCLUSION : Renal lesion occurs in the diabetic Kunming mice induced by combination of high-fat diet and low-dose streptozotocin, and endoplasmic reticulum stress and CHOP may contribute to the injury process.
Descritores: Diabetes Mellitus Experimental/metabolismo
Nefropatias Diabéticas/metabolismo
Nefropatias Diabéticas/patologia
Estresse do Retículo Endoplasmático/fisiologia
Dieta Hiperlipídica
-Glicemia/análise
Peso Corporal/fisiologia
Distribuição Aleatória
Diabetes Mellitus Experimental/induzido quimicamente
Diabetes Mellitus Experimental/patologia
Modelos Animais de Doenças
Fator de Transcrição CHOP/metabolismo
Resposta a Proteínas não Dobradas/fisiologia
Proteínas de Choque Térmico/metabolismo
Rim/metabolismo
Rim/patologia
Limites: Animais
Masculino
Camundongos
Tipo de Publ: Research Support, Non-U.S. Gov't
Responsável: BR1.1 - BIREME


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Id: biblio-1048416
Autor: Silva, Lívia Beatriz Aparecida Ribeiro.
Título: Influence of paternal consumption of a high-fat/high-sugar diet and/or orange juice during preconception on C57BL/6 female mice offspring breast cancer risk / Influência do consumo paterno de uma dieta hiperlipídica/hiperglicídica e/ou suco de laranja durante a preconcepção no risco de câncer de mama na prole feminina de camundongos C57BL/6.
Fonte: São Paulo; s.n; 2019. 90 p. tab, graf.
Idioma: en.
Tese: Apresentada a Universidade de São Paulo. Faculdade de Ciências Farmacêuticas para obtenção do grau de Doutor.
Resumo: Breast cancer is the most frequent cancer in women worldwide. Paternal consumption of a highfat diet has been shown to program breast cancer risk in female offspring. Orange juice is widely consumed and is known for its content of bioactive compounds that may have a role in regulating epigenetic processes. Therefore, the aim of the present study was to evaluate the effects of paternal obesity and orange juice consumption on female offspring susceptibility to chemically-induced breast carcinogenesis. Three-week-old C57BL/6 male mice were distributed in control (CO), control-orange juice (CJ), obese (OB) and obese-orange juice (OJ) groups, fed either a standard chow or a high-fat/high-sugar diet (45% lard-based diet supplemented with sweetened condensed milk), with water or orange juice, for 11 weeks before mating. Female offspring were weaned onto standard chow until 7 weeks of age and then were initiated with 7,12-dimethyl-benzo[a]anthracene to induce mammary tumors. CJ female offspring presented higher multiplicity of mammary tumors (p≤0.05) compared to CO offspring. Female offspring from OB group showed higher tumor latency (p≤0.05), lower tumor incidence (p≤0.05), higher multiplicity of tumors (p≤0.05), lower cell proliferation (Ki67) in the mammary ducts (p≤0.05) and lower global levels of H3K27me3 in the mammary gland (p≤0.05) when compared to CO offspring. No differences (p≥0,05) were observed between OB and OJ female offspring regarding these parameters. Consumption of orange juice by non-obese fathers during preconception increased susceptibility of female offspring to mammary carcinogenesis. Although paternal consumption of a high-fat/high-sugar diet during preconception decreased incidence and increased latency of tumors, the multiplicity of lesions increased. In addition, the data indicates that the response to orange juice consumption depends of the paternal metabolic context

O câncer de mama é o mais frequente entre as mulheres em todo o mundo. Foi demonstrado que o consumo paterno de uma dieta hiperlipídica aumenta o risco de câncer de mama nas filhas. O suco de laranja é amplamente consumido e é conhecido pelo seu conteúdo de compostos bioativos que podem ter um papel na regulação dos processos epigenéticos. Portanto, o objetivo do presente estudo foi avaliar os efeitos da obesidade paterna e do consumo de suco de laranja na suscetibilidade da prole feminina à carcinogênese mamária quimicamente induzida. Camundongos C57BL/6 machos com três semanas de idade foram distribuídos nos grupos controle (CO), controle de suco de laranja (CJ), obeso (OB) e obeso suco de laranja (OJ), alimentados com ração controle ou com ração hiperlipídica e hiperglicídica (45% das calorias proveniente de lipídeos, a base de banha de porco) suplementada com leite condensado, com água ou suco de laranja, durante 11 semanas antes do acasalamento. A prole feminina foi desmamada e recebeu ração controle até 7 semanas de idade e, então, foi iniciada com 7,12- dimetil-benzo[a]antraceno para induzir tumores mamários. A prole feminina CJ apresentou maior multiplicidade de tumores mamários (p≤0.05) em relação a prole feminina CO. A prole feminina OB apresentou maior latência tumoral (p≤0.05), menor incidência tumoral (p≤0.05), maior multiplicidade de tumores (p≤0.05), menor proliferação celular (Ki67) nos ductos mamários (p≤0.05) e menores níveis globais de H3K27me3 na glândula mamária (p≤0.05), quando comparada a prole feminina CO. Não foram observadas diferenças (p≥0,05) entre a prole feminina do OB e OJ em relação a esses parâmetros. O consumo de suco de laranja por pais não obesos durante o período pré-concepcional aumentou a susceptibilidade da prole feminina à carcinogênese mamária. Embora o consumo paterno de uma dieta hiperlipídica e hiperglicídica durante a preconcepção tenha diminuído a incidência e aumentado a latência, a multiplicidade dos tumores mamários aumentou. Ainda, os resultados indicam que a resposta ao consumo de suco de laranja depende do contexto metabólico paterno
Descritores: Neoplasias da Mama/dietoterapia
Citrus sinensis/classificação
Pai/classificação
Dieta Hiperlipídica/efeitos adversos
Sucos de Frutas e Vegetais/análise
-Início da Vida Humana
Epigenômica
Obesidade/fisiopatologia
Limites: Animais
Masculino
Camundongos
Responsável: BR40.1 - DBD - Divisão de Biblioteca e Documentacão do Conjunto das Químicas
BR40.1; T641.1, S586i. 30100022667-F


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Id: lil-767095
Autor: López-Rodríguez, Guadalupe; Osuna, Silke Kotasek; García, Marcos Galván; Dieguez, Teodoro Suárez.
Título: Effects of dietary high fructose corn syrup on regulation of energy intake and leptin gene expression in rats / Efeitos da ingestão de xarope de milho com alto teor de frutose na regulação da ingestão energética e na expressão gênica de leptina em ratos
Fonte: Rev. Nutr. (Online);28(6):597-605, Dez. 2015. tab, graf.
Idioma: en.
Projeto: Programa del Mejoramiento del Profesorado; . Consejo Nacional de Ciencia y Tecnología.
Resumo: OBJECTIVE: To evaluate in Wistar rats the effect of chronic use of high fructose corn syrup on serum lipids, body weight, energy intake regulation, and expression of associated genes. METHODS: For 11 weeks, male rats were fed a standard diet with either water (control) or 15% high fructose corn syrup solution, or fed a high-fat diet. The rats' food intake and body weight were measured weekly. Expression of leptin and fatty acid synthase genes was quantified in their brain and adipose tissue upon sacrifice at age 119 days using real-time polymerase chain reaction. RESULTS: The intake of 15% high fructose corn syrup did not affect the rats' weight, only the rats on the high-fat diet gained significant weight. The rats in both diets had lower levels of leptin expression and high levels of fatty acid synthase in the brain, which were associated with high serum triglycerides. CONCLUSION: Fifteen percent high fructose corn syrup intake and the high-fat diet reduced leptin gene expression in the brain of Wistar rats, with differential effects on weight gain.

OBJETIVO: Avaliar em ratos Wistar o efeito do consumo crônico de xarope de milho com alta concentração de frutose sobre os lipídeos séricos, peso corporal, regulação da ingestão energética e expressão de genes associados. MÉTODOS: Durante 11 semanas, ratos machos foram alimentados com uma dieta padrão com água (controle) ou 15% de xarope de milho com alta concentração de frutose, ou com uma dieta hiperlipídica. A ingestão alimentar e o peso corporal dos ratos foram medidos semanalmente. Os animais foram sacrificados com 119 dias de vida, e as expressões gênicas de leptina e da sintetase de ácidos graxos foram quantificadas no cérebro e no tecido adiposo usando a reação em cadeia da polimerase em tempo real. RESULTADOS: O consumo de 15% de xarope de milho com alto teor de frutose não afetou o peso dos animais, somente os ratos da dieta hiperlipídica aumentaram de peso significativamente. Nas dietas hiperlipídica e com alto teor de frutose, foram evidentes expressões mais baixas de leptina e mais altas de sintetase de ácidos graxos no cérebro, assim como concentrações mais altas de triacilglicerídeos séricos. CONCLUSÃO: Ingestão de xarope de milho com alta concentração de frutose a 15% ou de dieta hiperlipídica diminuíram a expressão gênica de leptina no cérebro de ratos Wistar, com diferentes efeitos sobre o aumento de peso.
Descritores: Peso Corporal
Leptina
Ácidos Graxos
Dieta Hiperlipídica
Xarope de Milho Rico em Frutose
Frutose
Limites: Animais
Cobaias
Ratos
Tipo de Publ: Artigo Clássico
Responsável: BR13.3 - Biblioteca das Faculdades de Odontologia e Nutrição


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Id: lil-732994
Autor: Alvarado, Cornelio Barrientos; Vázquez, Jorge Sánchez; Oscoy, María Atanasia Silvia Cárdenas; Acosta, Osvaldo Garrido; Robledo, Liliana Anguiano.
Título: Efecto de la administración subcrónica de glucosamina oral en la regulación del peso corporal, glucemia y dislipidemias provocada por una dieta hipercalórica en rata Wistar / Effect of subchronic oral administration of glucosamine in the regulation of body weight, glycemia and dyslipidemia induced hypercholesterolemic Wistar rat
Fonte: Rev. Nutr. (Online);27(6):689-701, Nov.-Dec. 2014. tab, graf.
Idioma: es.
Projeto: Instituto Politécnico Nacional.
Resumo: Objetivo: Este estudio evaluó el efecto de la glucosamina oral en el sobrepeso y dislipidemia provocada por una dieta hipercalórica en ratas. Métodos: En 4 grupos de ratas Wistar: alimentados con dieta comercial para roedores y agua de beber sin grupo de control y con glucosamina (500 mg/kg-1 por día) grupo glucosamina y con dieta hipercalórica enriquecida al 24% (g/g) compuesta por manteca de cerdo y agua de beber sin grupo hipercalórico y con glucosamina grupo hipercalórico + grupo glucosamina, durante 22 semanas, se evaluaron el peso corporal, grasa abdominal, niveles de glucemia, triglicéridos, colesterol total y lipoproteínas de alta densidad en suero. Resultados: Se observó un aumento del peso corporal y glucemia en suero con dislipidemias en el grupo con dieta hipercalórica grupo hipercalórico versus grupo de controle (p<0.001); al administrarse glucosamina para esta misma dieta grupo hipercalórico + grupo glucosamina se minimizaron los efectos presentados, disminuyendo la cantidad de grasa abdominal y los niveles del perfil lípido en suero (p>0.05) y regulándose el peso corporal, las lipoproteínas de alta densidad y la glucemia basal (p<0.05). Conclusion: La glucosamina reguló el peso corporal y la glucemia en sangre y minimizó las dislipidemias provocadas por la dieta hipercalórica, favoreciendo el aumento de colesterol lipoproteínas de ...

Objective: This study evaluated the effect of oral glucosamine on overweight and dyslipidemia caused by a high-fat diet in rats. Methods: Four groups of Wistar rats: fed with commercial rodent food and drinking water without (control group) and with glucosamine (500 mg kg-1 per day) and a high-fat diet enriched with 24% (g/g) butter pork and drinking water without and with glucosamine, for 22 weeks; the body weight, abdominal fat, blood glucose, triglycerides, total cholesterol, and high density lipoprotein in serum were evaluated. Results: Body weight gain, increased blood glucose levels and dyslipidemia were observed in the high-fat diet group versus the control group (p<0.001). When glucosamine was administered the same diet the effects were minimized, with a decrease in the amount of abdominal-fat and lipid profile levels in serum (p>0.05), regulated body weight, and high density lipoprotein and glycaemia (p<0.05). The glucosamine did not affect body weight and lipid metabolism in rats when administered with a normal diet. Conclusions: Glucosamine regulated the body weight blood glucose and dyslipidemia caused by a high-fat diet, favoring increased high density lipoprotein cholesterol in rats. It did not affect body weight and lipid metabolism when administered with commercial food. .
Descritores: Glicemia/efeitos dos fármacos
Dieta Hiperlipídica/efeitos adversos
Glucosamina/sangue
-Peso Corporal/efeitos dos fármacos
Ratos Wistar/sangue
HDL-Colesterol/sangue
Limites: Animais
Masculino
Ratos
Responsável: BR13.3 - Biblioteca das Faculdades de Odontologia e Nutrição


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Id: biblio-1002243
Autor: Wang, Jinbao; Wang, Pei; Wang, Zhisheng; Ran, Linwu; Yang, Li; Yang, Wen.
Título: Expression of V2R and AQPs in the renal medulla of high-fat nutritional obesity of rat / Expresión de V2R y AQPs en la médula renal de ratas con obesidad nutricional alta en grasas
Fonte: Int. j. morphol;37(2):459-465, June 2019. tab, graf.
Idioma: en.
Projeto: Natural Science Fund of Ningxia, China.
Resumo: Recent evidence has indicated that adipose tissue produces bioactive substances that contribute to obesity-related kidney disease, altering the renal function and structure. Eight of the AQPs are expressed in the kidney, where several of them contribute to water absorption and maintenance of body water balance. In the study, we mainly examined the localization of AQP2, AQP3 and V2R in renal medulla of Normal Diet (ND) and High-fat Diet (HFD) of rats, respectively. In renal medulla of HFD, immunolight microscopy revealed weak expression of AQP2 at the apical plasma membrane and intracellular vesicles of principal cells of the IMCD and OMCD. AQP3 and V2R expression also observed a decrease in immunolabelling in the IMCD and OMCD. It was suggested that excess lipid accumulation may lead to lipotoxicity and may be the major driver of organ dysfunction such as water reabsorption dysfunction, which may be resulted from abnormal response of rphan G-protein-coupled receptors in kidney.

La evidencia reciente ha indicado que el tejido adiposo produce sustancias bioactivas que contribuyen a la enfermedad renal relacionada con la obesidad, alterando la función y la estructura renal. Ocho de los AQP se expresan en el riñón, donde varios de ellos contribuyen a la absorción de agua y al mantenimiento del equilibrio hídrico corporal. En el estudio, examinamos principalmente la localización de AQP2, AQP3 y V2R en la médula renal de ratas con dieta normal (ND) y ratas con dieta alta en grasas (HFD). En la médula renal del grupo HFD, la microscopía electrónica de barrido reveló una expresión débil de AQP2 en la membrana plasmática apical y las vesículas intracelulares de las células principales de IMCD y OMCD. La expresión de AQP3 y V2R también observó una disminución en el inmunomarcador en IMCD y OMCD. Se sugiere que el exceso de acumulación de lípidos puede conducir a lipotoxicidad y ser el principal impulsor de la disfunción orgánica, como la disfunción de reabsorción de agua, que puede ser el resultado de la respuesta anormal de los receptores acoplados a proteína rphan G en el riñón.
Descritores: Receptores de Vasopressinas/metabolismo
Aquaporinas/metabolismo
Dieta Hiperlipídica
Nefropatias/metabolismo
Medula Renal/patologia
Obesidade
-Imuno-Histoquímica
Ratos Sprague-Dawley
Aquaporina 1/metabolismo
Aquaporina 2/metabolismo
Medula Renal/metabolismo
Microscopia
Limites: Animais
Ratos
Responsável: CL1.1 - Biblioteca Central


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Id: biblio-1002240
Autor: Bin-Meferij, Mashael Mohammed; El-Kott, Attalla Farag; Shati, Ali Abdullah; Eid, Refaat A.
Título: Ginger extract ameliorates renal damage in high fat diet-induced obesity in rats: biochemical and ultrastructural study / El extracto de jengibre mejora el daño renal en la obesidad inducida por la dieta alta en grasas en ratas: estudio bioquímico y ultraestructural
Fonte: Int. j. morphol;37(2):438-447, June 2019. tab, graf.
Idioma: en.
Projeto: Princess Nourah bint Abdulrahman University.
Resumo: Obesity is a modifiable risk factor for the development and progression of kidney disease. Obesity may harm kidneys in individuals without hypertension, diabetes, or pre-existing renal disease. Ginger, Zingiber officinale, has many beneficial pharmaceutical benefits. This study aimed to evaluate the Zingiber officinale protective effect against obesity complications which induced by high fat diet and caused renal dysfunctions. The study period was two months, and the experimental animals' groups were four, 80 Wistar rats were appropriated similarly 20 animals/group: control group; ginger extract group (GE); high-fat diet (HFD); and GE+HFD group. Body and fat weight, creatinine, leptin, TNF-α, total antioxidants, renal histopathological and ultrastructure were investigated. Rats in group of HFD showed a significant increase (P<0.05) in the body and fat weights, creatinine, leptin and TNF-α, and significant decrease (P<0.05) in total antioxidants (TAS). Ginger administration significantly showed the protective restoring the altered parameters. Furthermore, rats co-treated with ginger extract improved the histopathological and ultrastructural renal injury induced by obesity. The study concluded that the ginger extract used could suppress and decrease the renal damage induced by high-fat diet as it possesses potential medicinal values.

La obesidad es un factor de riesgo modificable para el desarrollo y la progresión de la enfermedad renal. La obesidad puede dañar los riñones en personas sin hipertensión, diabetes o enfermedad renal preexistente. El jengibre, Zingiber officinale, tiene muchos beneficios farmacéuticos. Este estudio tuvo como objetivo evaluar el efecto protector de Zingiber officinale en las complicaciones de la obesidad inducida por una dieta alta en grasas y las enfermedad renal. El período de estudio fue de dos meses, y los grupos de animales experimentales fueron cuatro, se asignaron 80 ratas Wistar de manera similar, 20 animales por grupo: grupo de control; grupo de extracto de jengibre (GE); dieta alta en grasas (DAG); y el grupo GE + DAG. Se evaluó el peso corporal y la grasa, creatinina, leptina, TNF-α, antioxidantes totales, histopatología renal y ultraestructura. Las ratas en el grupo de DAG mostraron un aumento significativo (P<0,05) en el peso corporal y de grasa, creatinina, leptina y TNF-a, y una disminución significativa (P<0,05) en los antioxidantes totales. La administración de jengibre mostró una protección significativa restaurando los parámetros alterados. Además, las ratas tratadas conjuntamente con extracto de jengibre mejoraron la lesión renal histopatológica y ultraestructural inducida por la obesidad. El estudio concluyó que el extracto de jengibre podría suprimir y disminuir el daño renal inducido por la dieta alta en grasas, ya que posee potenciales valores medicinales.
Descritores: Extratos Vegetais/farmacologia
Gengibre/química
Dieta Hiperlipídica/efeitos adversos
Nefropatias/tratamento farmacológico
Obesidade/complicações
-Peso Corporal
Fator de Necrose Tumoral alfa/análise
Ratos Sprague-Dawley
Creatinina/análise
Leptina/análise
Microscopia Eletrônica de Transmissão
Rim/patologia
Nefropatias/patologia
Limites: Animais
Ratos
Responsável: CL1.1 - Biblioteca Central


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Id: biblio-1002235
Autor: Wang, Jinbao; Yang, Wen; Wang, Pei; Wu, Jing; Wang, Zhisheng; Yang, Mengmeng; Jin, Xueqin.
Título: Renal expression of AQP1 in the high-fat nutritional obesity of rat / Expresión renal de AQP1 en la obesidad nutricional alta en grasas en ratas
Fonte: Int. j. morphol;37(2):406-411, June 2019. graf.
Idioma: en.
Projeto: Higher Education Scientific Research.
Resumo: AQP1 plays an essential role in maintaining body water balance. In the kidney, AQP1 is localized to the apical and basolateral membrane of epithelial cells in the proximal tubule and descending thin limb of Ansa nephroni (Henle's loop) where it reabsorbs the vast majority of filtered water. The growing epidemic of obesity and metabolic diseases particularly obesity-related kidney disease is getting more and more attention in this century. However, a full understanding of mechanisms involved to the progressive renal disease is still unclear, in particular AQPs in the kidney of obesity. In this paper, we examined the localization of AQP1 in renal cortex and medulla of ND (normal diet) and HFD (high-fat diet) at rats. In the renal cortex and medulla, immunolight microscopy revealed weak expression of AQP1 in the apical and basolateral membrane of epithelial cells at the proximal straight/convoluted tubule of HFD compared with ND, respectively. The same result was confirmed in the thick descending limb and descending thin limb of Henle's loop. In the high-fat nutritional obesity of rats, decreased AQP1 levels may not directly cause serious obesity-related kidney disease, e.g. chronic kidney disease, even end-stage renal disease. But at least, AQPs (AQP1 in this study) was one of initially conditions to the incentive of obesity-related kidney disease.

Las acuoporinas tipo 1 (AQP1) constituyen una parte esencial en el mantenimiento del equilibrio del agua en el cuerpo. En el riñón, la AQP1 se localiza en la membrana apical y basolateral de las células epiteliales, en el túbulo proximal y en el segmento descendente del Ansa nephroni o asa nefrónica (asa de Henle), donde reabsorbe la gran mayoría de agua filtrada. La creciente epidemia de obesidad y enfermedades metabólicas en el siglo actual, hacen que la enfermedad renal relacionada con la obesidad esté recibiendo cada vez más atención. Sin embargo, aún no existe un conocimiento definitivo de los mecanismos implicados en la enfermedad renal progresiva, en particular los relacionados a las acuoporinas renales en la obesidad. En este trabajo, examinamos la localización de AQP1 en la corteza y la médula renales de la dieta normal (DN) y dieta alta en grasa (DAG) en ratas. En la corteza y médula renales, la microscopía de luz reveló una expresión débil de AQP1 en la membrana apical y basolateral de las células epiteliales en el túbulo contorneado proximal del grupo DAG en comparación con el grupo DN, respectivamente. El mismo resultado se confirmó en la porción descendente gruesa y en la porción descendente delgada del asa nefrónica. En ratas del grupo DAG, la disminución de los niveles de AQP1 pudo no ser la causa directa de una enfermedad renal grave relacionada con obesidad, como por ejemplo, enfermedad renal crónica, o una enfermedad renal terminal. No obstante, en este estudio, la expresión renal de AQP1 constituyó una de las condiciones iniciales para inducir la enfermedad renal relacionada con obesidad.
Descritores: Aquaporina 1/metabolismo
Dieta Hiperlipídica
Rim/patologia
-Imuno-Histoquímica
Ratos Sprague-Dawley
Rim/metabolismo
Medula Renal/patologia
Limites: Animais
Ratos
Responsável: CL1.1 - Biblioteca Central



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