Effect of dietary protein quality and essential fatty acids on fatty acid composition in the liver and adipose tissue after rapid weight loss in overweight cats

Szabö, Joseph; Ibrahim, Wissam H.; Sunvold, Gregory D.; Bruckner, Géza

doi:10.2460/ajvr.2003.64.310

Cited by 12 publications

(14 citation statements)

References 18 publications

(19 reference statements)

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“…Also, in another study 32 conducted by our laboratory group, we found that cats fed a complete, balanced, energy-dense diet that contained sufficient amounts of n-3 LPUFAs during weight gain had minimal lipid accumulation in the liver, and the concentration of 22:6(n-3) in storage and membranes was substantially increased over baseline values. In the overweight cats, there was a significant decrease in n-6 and n-3 LPUFAs in liver TGs, compared with values for lean cats at baseline.…”

Section: Discussionmentioning

confidence: 75%

Effects of carnitine and taurine on fatty acid metabolism and lipid accumulation in the liver of cats during weight gain and weight loss

Ibrahim¹,

Bailey²,

Sunvold³

et al. 2003

ajvr

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Section: Discussionmentioning

confidence: 75%

Effects of carnitine and taurine on fatty acid metabolism and lipid accumulation in the liver of cats during weight gain and weight loss

Ibrahim¹,

Bailey²,

Sunvold³

et al. 2003

ajvr

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“…Nevertheless, a large intake of carbohydrates may contribute to sustain low plasma levels of homocysteine [19]. Also, the finding of a positive correlation between protein intake and plasma arachidonic acid could indicate a greater production of eicosanoids, proinflammatory products that may facilitate the development of insulin resistance, a conclusion also suggested by the close, albeit not significant, correlation between protein intake and both insulinemia and HOMA index [20,21,22].…”

Section: Discussionmentioning

confidence: 84%

Influence of diet on atherogenic risk in children with renal transplants

et al. 2004

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Cardiovascular disease is one of the main causes of morbidity and mortality in recipients of renal transplants. Although the risk for cardiovascular disease is in part genetically determined, it may also be influenced by diet. The aim of the present study was to analyze the cross-sectional association of dietary intake of nutrients with biochemical markers of atherogenic risk. The influence of diet on the plasma profile of fatty acids was specifically investigated. Twenty-nine children and adolescents (mean age 14 years, range 6-18 years) with stable renal transplants and on a normal diet recorded their food intake for a period of 3 days. The mean calorie intake was 40.6 kcal/kg per day (protein provided 16% of total calories, carbohydrates 45%, and fat 39%). Plasma levels of total cholesterol and low-density lipoprotein-cholesterol were significantly and positively related to intake of monounsaturated fatty acids ( r=0.66, P =0.007 and r =0.62, P =0.02, respectively) and to plasma levels of elaidic acid, a trans fatty acid ( r=0.43, P =0.02 and r =0.54, P =0.01, respectively). Insulin resistance, estimated from values of plasma glucose ( r=0.70, P =0.03), plasma insulin ( r=0.59, P =0.02), and HOMA index ( r=0.62, P =0.01), was also directly related to the intake of monounsaturated fatty acids. Plasma plasminogen activator inhibitor-1 activity correlated positively with total fat intake ( r=0.59, P =0.04). Plasma levels of homocysteine were negatively related to the intake of carbohydrates ( r=-0.62, P =0.02). We conclude that reasonable dietary recommendations to minimize the atherogenic risk in children with stable renal transplants should include a protein intake adjusted to the requirements for age, a large intake of carbohydrates leading to a low glycemic load, and a fat intake of less than 30% of the total calorie intake. The amount of monounsaturated and trans fatty acids in the diet should be especially limited. A sufficient intake of polyunsaturated fatty acids, with an adequate ratio between omega 6 and omega 3 components, should also be provided.

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“…Muitos são os trabalhos na literatura que estudam os efeitos dos esteróides sexuais sobre o metabolismo corpóreo [1][2][3][4][5][6][7][8][9] . Dentre os modelos experimentais, os ratos albinos são os mais utilizados por apresentarem um ciclo estral bastante conhecido e de curta duração (média de 4-5 dias) e atingirem rapidamente o amadurecimento sexual aos 50-60 dias de vida.…”

Section: Discussionunclassified

“…A relação entre hormônios femininos e variação ponderal em modelo experimental também vem sendo pesquisada. Vários autores descreveram ganho ponderal em animais ooforectomizados 3,4,8 . Com o advento da terapia de reposição hormonal e a descoberta da leptina, um hormônio regulador da obesidade, a discussão sobre obesidade e supressão estrogênica vem sendo mais freqüente 9 .…”

Section: Introductionunclassified

Relação entre ooforectomia e peso em modelo experimental

Vasconcellos¹,

Sabino²,

Petroianu

2005

Rev. Col. Bras. Cir.

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OBJETIVO: Avaliar a influência da privação dos hormônios ovarianos no ganho ponderal, em modelo experimental. MÉTODO: Foram utilizadas 40 ratas fêmeas adultas, distribuídas aleatoriamente em três grupos: Grupo 1 (n=10) - controle, Grupo 2 (n=10) - submetido apenas à laparotomia, Grupo 3 (n=20) - submetido à ooforectomia total bilateral. Os animais foram pesados semanalmente durante 30 semanas e os resultados foram avaliados pelo teste t de Student, com significância para p < 0,05. RESULTADOS: As ratas ooforectomizadas apresentaram ganho ponderal maior do que as demais, sendo a diferença significativa a partir da 9ª semana e persistindo até o fim do experimento. CONCLUSÕES: No presente trabalho, a privação dos hormônios ovarianos foi um fator relacionado com o maior ganho ponderal, em ratas.

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Effect of dietary protein quality and essential fatty acids on fatty acid composition in the liver and adipose tissue after rapid weight loss in overweight cats

Abstract: These data provide direct evidence that dietary protein quality alters fatty acid composition of tissues during weight loss in cats. The fatty acid patterns observed suggest that protein quality may alter fatty acid composition through modulation of desaturase activity.

Cited by 12 publications

References 18 publications

Effects of carnitine and taurine on fatty acid metabolism and lipid accumulation in the liver of cats during weight gain and weight loss

Effects of carnitine and taurine on fatty acid metabolism and lipid accumulation in the liver of cats during weight gain and weight loss

Influence of diet on atherogenic risk in children with renal transplants

Relação entre ooforectomia e peso em modelo experimental

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