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Docosahexaenoic acid status of term infants feed breast milk or infant formula containing soy oil or corn oil / DL Ponder; SM Innis; JD Benson; JS Siegman.-- pp.683-688.-- En: Pediatric Research.-- 32, 6 (1992)
LACTANTE   LACTANCIA MATERNA   ACEITE DE MAIZ   ACEITE DE SOYA
Ubicación: Centro de Información y Documentación (CANIA)   
Solicite el material por este código: AS-2009
Tipo de Material:
Separata

    The objective of this study was to compare circulating lipid docosahexaenoic acid [22:6(n-3), DHA] levels in term infants fed a powdered (CORN oil) or liquid (SOY oil) infant formula or human milk (HM). Infants whose mothers chose not to breast feed were randomly assigned to the CORN or SOY formula group. The formula fat differed in linolenic acid [18:3(n-3)] content: it was 0.8% for the CORN and 4.8% for the SOY. Linoleic acid [18:2(n-6)] was 31.5 and 34.2% fatty acids in the CORN and SOY formula, respectively. The formulas or HM were fed from birth through 8 wk of age, and growth and the plasma and red blood cell (RBC) phospholipid fatty acid composition was determined at 3 d, 4 wk, and 8 wk of age. Growth did not differ among groups....Continua.




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Dose-response relationship between fat ingestion and oxidation: quantitative estimation using whole-body calorimetry and 13C isotope ratio mass spectrometry / BJ Sonko; AM Prentice; WA Coward; PR Murgatroyd; GR Goldberg.-- pp. 10-18.-- En: European Journal of Clinical Nutrition.-- 55, 1 (2001)
Notas de Contenido:
Revista en estantería
ADOLESCENCIA   ADULTO   TESTS RESPIRATORIOS   CALORIMETRIA INDIRECTA   DIOXIDO DE CARBONO   ISOTOPOS DE CARBONO   ACEITE DE MAIZ   GRASAS EN LA DIETA   RELACION DOSIS-RESPUESTA A DROGA   METABOLISMO ENERGETICO   FEMENINO   HUMANO   CINETICA   LIPIDOS   LIPOLISIS   MASCULINO   DINAMICAS NO LINEALES   OXIDACION-REDUCCION   PERIODO POSPRANDIAL   FACTORES DE TIEMPO
Ubicación: Centro de Información y Documentación (CANIA)   
Tipo de Material:
Separata

    OBJECTIVE: To determine dose-dependent relationship between ingested fat and its oxidation in the immediate post-prandial period in humans. DESIGN: Subjects were randomly selected for the study at the Dunn Clinical Nutrition Centre, Cambridge, UK. Subjects ingested naturally enriched 13C corn-oil doses (range 20-140g) in a whole-body indirect calorimeter, and were studied for 8 h. Ingested fat oxidation was estimated from the subject's breath 13C enrichment and total carbon dioxide production. Total fat and carbohydrate oxidation were estimated from non-protein oxygen and carbon dioxide exchanges. Endogenous fat oxidation was estimated as the difference between total fat and ingested fat oxidation. RESULTS: The amount of fat dose oxidized was nonlinearly related to the amount ingested. On average, 25.6+/-2.7% of the mean fat dose was oxidized. A significant (r = - 0.72, P < 0.001) inverse correlation was found between the amount of fat dose and the proportion oxidized. Endogenous carbohydrate oxidation was negatively and significantly correlated to fat dose oxidized (r= -0.61, P < 0.01), but it was not correlated to endogenous fat oxidation. CONCLUSIONS: There was a nonlinear relationship between amount of fat dose and its quantity that was oxidized in the immediate post-prandial period. The inverse relationship between the size of the fat load and the proportion that was oxidized post-prandially implies increased dietary fat storage beyond about 50 g in a normal resting adult. This has important implications for 13CO2-based studies.

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A method for steam-sterilizing semi-solid diets for germ-free mice research / T Moraes Santos; JR Nicoli; ME Silva; EC Vieira.-- pp. 546-54.-- En: Archivos Latinoamericanos de Nutrición.-- 41, 4 (1991)
Notas de Contenido:
Revista en estanteria
ANALISIS DE VARIANZA   ALIMENTACION ANIMAL   NUTRICION ANIMAL   CASEINAS   ESTUDIO COMPARATIVO   ACEITE DE MAIZ   HARINA   ALIMENTOS FORMULADOS   VIDA LIBRE DE GERMENES   RATONES   PROYECTOS DE INVESTIGACION   AUMENTO DE PESO   ZEA MAYS
Ubicación: Centro de Información y Documentación (CANIA)   
Tipo de Material:
Separata

    A semi-solid corn-meal diet sterilized in glass flasks in a hospital-type autoclave is described. The values of weight gain, feed efficiency, apparent digestibility, and cecal diameters were the same for germ-free mice fed either on this diet or on a soybean meal and alfalfa diet (L-485), widely used in germ-free research. The corn-meal diet has been successfully used for eight years.




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Comparative effects of rose hip and corn oils on biliary and plasma lipids in rats / M Lutz; M Torres; P Carreño; I González.-- pp. 23-7.-- En: Archivos Latinoamericanos de Nutrición.-- 43, 1 (1993)
Notas de Contenido:
Revista en estanteria
BILIS   ACIDOS Y SALES BILIARES   ESTUDIO COMPARATIVO   ACEITE DE MAIZ   GRASAS EN LA DIETA   LIPIDOS   ACEITES VEGETALES   RATAS SPRAGUE-DAWLEY
Ubicación: Centro de Información y Documentación (CANIA)   
Tipo de Material:
Separata

    The comparative effects of dietary level and time of feeding corn (CO) and rose hip (RHO) oils on bile and plasma lipid composition were studied. 48 males Sprague Dawley rats were divided in two groups fed semipurified diets containing CO or RHO as the only lipid source. Groups of 6 rats were fed ad libitum diets containing 5% or 15% vegetable oil during 15 or 60 days. Food intake was not dependent on the type of oil, and was higher in 15% oil diets (p < 0.01), increasing with time of feeding (p < 0.001). Bile flow was similar in all groups. Biliary concentrations of cholesterol, phospholipids and bile acids were affected by the time of feeding (p < 0.001). Plasma total and high density lipoprotein (HDL) cholesterol levels were higher in 15% oil fed rats (p < 0.05). Triglycerides concentrations were similar in all groups. The results indicate that oil concentration and time of feeding were the most important variables affecting the lipid composition of rats, independently of the fatty acid composition of the ingested fats.





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