Efeito da gordura vegetal parcialmente hidrogenada sobre a incorporação de ácidos graxos trans em tecidos de ratos

Sabarense, Céphora Maria; Filho, Jorge Mancini

doi:10.1590/s1415-52732003000400003

Cited by 6 publications

(12 citation statements)

References 18 publications

(17 reference statements)

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“…Although it may be related to have decreased stress in several species of fish (Li & Lovell, 1985;Sakakura et al 1998;Petric et al, 2003;Moraes et al, 2003;Wang et al, 2006), vitamin C had no influence on this study, probably due to the good management practices which supported the welfare of the animals (Li & Lovell, 1985;Sakakura et al, 1998;Petric et al, 2003;Moraes et al, 2003). This likely reduced stress on the fish reducing demand for vitamin C (Navarre & Halver 1989).…”

Section: Resultsmentioning

confidence: 73%

“…However, stress can be relieved by controlling the diet inasmuch as the physiological state of an animal is a reflection of the quality and quantity of available nutrients in the diet (Falcon et al, 2007a). Among the nutrients used in diets to reduce the effects of stress on fish, vitamin C acts as an antioxidant eliminating free radicals (Lall and Lewis-McCrea, 2007), reducing stress and promoting comfort for the animal (Li & Lovell, 1985;Sakakura et al, 1998;Petric et al, 2003;Moraes et al, 2003;Wang et al, 2006). It also participates in the synthesis of carnitine (Chien & Hwang, 2001), which is fundamental in the transport of long chain fatty acids into mitochondria, favoring the production of energy (Bilinski & Jonas, 1970).…”

Section: Introductionmentioning

confidence: 99%

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Feed training of giant trahira fingerlings fed diets containing different levels of vitamin C

et al. 2011

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-The objective of this work was to evaluate suplemenation of vitamin C during feed training of giant trahira fingerlings. An experiment was established in a complete random design with seven treatments (0.0, 17.5, 52.5, 87.5, 122.5, 175.0 and 350.0 mg vitamin C/kg diet) and four repetitions. Giant trahira fingerlings (2.8 ± 0.2 cm) were distributed in 6-L aquaria at the density of 6 fish/L. A basal diet was formulated with 44.0% of crude protein and vitamin C and bovine heart were added in it daily. After 20 days, biometry of fish for evaluation of weight and length gains, rates of survival and cannibalism and uniformity of final length and for macroscopic observations of clinical signs of deficiency or excess of vitamin was carried out. After biometry evaluation, ten fish from each tested diet were collected for analysis of the fatty acid profile which was compared to profile of fish at the same life stage fed forage fish collected from breeding fishponds. Data on growth performance and fatty acid profiles were submitted to analyses of polynomial regression and uniformity of the final length was evaluated by the Bartlett test. There was a significant difference only for uniformity in final length and fatty acid profile of the carcass. Supplementation with 52.5 mg vitamin C/kg diet provided a greater uniformity of the final length of the fish. Fish from breeding fishponds presented lower concentration of PUFA (polyunsaturated fatty acids) and higher concentration of saturated fatty acids compared to fish trained to accept dry diets. com 44,0% proteína bruta, e diariamente foi adicionada vitamina C e coração bovino. Após 20 dias, realizou-se biometria dos peixes para avaliação do ganho de peso e do comprimento, das taxas de sobrevivência e canibalismo e da uniformidade do comprimento final e para observações macroscópicas de sinais clínicos de deficiência ou excesso da vitamina. Após a biometria, dez peixes de cada dieta testada foram coletados para análise do perfil de ácidos graxos e este perfil foi comparado ao perfil de peixes, na mesma fase de vida, alimentados com peixes forrageiros coletados de viveiros de criação. Os dados de desempenho produtivo e perfil de ácidos graxos foram submetidos a análise de regressão polinomial e a uniformidade do comprimento final avaliada pelo teste de Bartlett. Houve diferença significativa apenas para a uniformidade em comprimento final e perfil de ácidos graxos da carcaça. A suplementação com 52,5 mg de vitamina C/kg de ração proporcionou maior uniformidade do comprimento final dos peixes. Os peixes dos viveiros de criação apresentaram menor concentração de PUFA (polyunsaturated fatty acids) e maior de ácidos graxos saturados em comparação aos peixes condicionados a aceitar dietas secas.Palavras-chave: canibalismo, Hoplias lacerdae, peixes carnívoros, perfil lipídico, uniformidade em comprimento Revista Brasileira de Zootecnia

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Section: Resultsmentioning

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Feed training of giant trahira fingerlings fed diets containing different levels of vitamin C

et al. 2011

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“…In cells cultured in the presence of tFA, some studies demonstrated a lower fat accumulation in adipocytes (22). On the other hand, adult male rats fed a hyperlipidic diet containing partially hydrogenated fat showed no significant difference in body weight (23). Although these studies correlate the increase of adiposity with the type of FA consumed, all of the diets tested were hyperlipidic.…”

Section: Discussionmentioning

confidence: 90%

Dietary fatty acids early in life affect lipid metabolism and adiposity in young rats

Silva

Guimarães

Mizurini

et al. 2006

Lipids

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The purpose of this study was to evaluate the effects of four isoenergetic diets of differing fat composition on blood lipid profile and adiposity in young rats. Diets containing different lipid sources--partially hydrogenated vegetable oil (PHVO), palm oil (PO), canola oil (CO), and soy oil (SO)--were fed to lactating rats during the 21 days of lactation, and then fed to young males following weaning until the 45th day of life. In vivo lipogenesis rate (LR), lipid content (LC), relative level of FA, and the activity of lipoprotein lipase (LPL) enzyme were measured in epididymal adipose tissue (EPI). Fasting blood lipoproteins and LC in the carcass were also appraised. Body weight of PO and PHVO groups was significantly higher than CO and SO groups from day 14 of lactation to day 45, despite the lower food intake in the PHVO group. PO and PHVO groups presented higher LR and LC in EPI than SO and CO groups. Carcass fat content was significantly higher in PHVO and PO groups than in CO and SO groups. The LPL activity in EPI was unaffected by dietary lipids. PHVO group had increased total cholesterol and TAG concentrations in comparison with the PO group, and significantly lower HDL level compared with the other groups. These results show that the kind of FA in the dietary lipid offered early in life can affect lipid metabolism and adiposity.

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“…Likewise, Morgado et al [24] , Larqué et al [46] and Sabarense and Mancini-Filho [69] found low amounts of PUFA in the liver and adipose tissue of rats fed TFA. This was attributed to their concentration in the diet.…”

Section: Fatty Acid Profilementioning

confidence: 91%

“…Conversely, total MUFA in the plasma was lower in the Trans group than in the control group. Morgado et al [24] and Sabarense and ManciniFilho [69] found an increase in MUFA in the liver of the rats. The most probable cause of MUFA deposition was the preference of TFA for metabolization and peroxisome oxidation, since the isomer C18: 1t (elaidic acid) is metabolized more efficiently than C18: 1c (oleic acid) in hepatic cells [70] .…”

Section: Fatty Acid Profilementioning

confidence: 94%

Deposition of trans Fatty Acid from Industrial Sources and Its Effect on Different Growth Phases in Rats

Lessa

Nakajima²,

Matta³

et al. 2010

Ann Nutr Metab

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Although the effects of trans fatty acids (TFA) from industrially produced sources (IP-TFA), such as partially hydrogenated vegetable oil, are reported, their implications on metabolism and growth are still not fully disclosed. In this study, female Wistar rats were assigned to control diet (AIN-93G) or Trans diet groups (5% IP-TFA) after gestation. The male offspring were classified and grouped as infant, weanling, and young adult (YA) rats (n = 10), and received the same control or Trans diets throughout their life span. Samples of abdominal adipose tissue, liver and plasma were collected to determine fatty acid profile and fasting glycemia. Morphometric analysis of the liver and hepatosomatic index determination were conducted. Deposition of TFA was observed in the liver, adipose tissue and plasma of IP-TFA-fed rats. Fasting glycemia concentration was higher in Trans YA rats than in the control YA group (p = 0.004). A higher accumulation of fat was observed in the liver of the Trans group than in the control group during the three phases. Hepatosomatic index was higher in the YA Trans group than in the YA control group (p < 0.05). Dietary TFA was deposited in the tissues and plasma and raised fasting glucose in growing rats.

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Efeito da gordura vegetal parcialmente hidrogenada sobre a incorporação de ácidos graxos trans em tecidos de ratos

Cited by 6 publications

References 18 publications

Feed training of giant trahira fingerlings fed diets containing different levels of vitamin C

Feed training of giant trahira fingerlings fed diets containing different levels of vitamin C

Dietary fatty acids early in life affect lipid metabolism and adiposity in young rats

Deposition of trans Fatty Acid from Industrial Sources and Its Effect on Different Growth Phases in Rats

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