scholarly journals Lymphatic absorption of fatty acids and cholesterol in the neonatal rat

2000 ◽  
Vol 279 (2) ◽  
pp. G325-G331 ◽  
Author(s):  
Looi C. Ee ◽  
Shuqin Zheng ◽  
Lili Yao ◽  
Patrick Tso
Keyword(s):  
Fatty Acids ◽  
Postnatal Growth ◽  
Dietary Lipids ◽  
Neonatal Rat ◽  
Lymphatic Transport ◽  
Sprague Dawley ◽  
Lymphatic Absorption ◽  
Suckling Rats ◽  
Thin Layer Chromatographic Analysis ◽  
Fat Diets

High-fat diets are essential in suckling animals to ensure adequate calories for postnatal growth, but their lymphatic transport of dietary lipids has not been characterized. We established a lymph fistula model in suckling rats to quantify intestinal uptake and lymphatic transport of dietary lipids and analyzed lipoprotein fractions. Suckling 19-day-old Sprague-Dawley rats had their mesenteric lymph ducts cannulated and gastroduodenal tubes inserted. After overnight recovery, [3H]triolein and [14C]cholesterol were infused for 6 h. Of the total dose, only 38% of triolein and 24% of cholesterol were transported in the lymph of suckling rats. Analyses of residual luminal contents and intestinal mucosal homogenate showed neither reduced absorption nor delayed mucosal processing of ingested lipids to be the cause. Thin-layer chromatographic analysis of radioactive mucosal lipids, however, showed a predominance of free fatty acids (60%) and free cholesterol (67%), implying impaired esterification capacity in these animals. We speculate that this reduced esterification allows for portal transport or direct enterocyte metabolism of dietary lipids.

scholarly journals Gut Mucosal Proteins and Bacteriome Are Shaped by the Saturation Index of Dietary Lipids

Nutrients ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 418 ◽  
Author(s):  
Nijiati Abulizi ◽  
Candice Quin ◽  
Kirsty Brown ◽  
Yee Chan ◽  
Sandeep Gill ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Corn Oil ◽  
Biological Effects ◽  
Saturated Fatty Acids ◽  
Gut Bacteria ◽  
Dietary Lipids ◽  
Rrna Gene ◽  
High Fat ◽  
High Fat Diets ◽  
Fat Diets

The dynamics of the tripartite relationship between the host, gut bacteria and diet in the gut is relatively unknown. An imbalance between harmful and protective gut bacteria, termed dysbiosis, has been linked to many diseases and has most often been attributed to high-fat dietary intake. However, we recently clarified that the type of fat, not calories, were important in the development of murine colitis. To further understand the host-microbe dynamic in response to dietary lipids, we fed mice isocaloric high-fat diets containing either milk fat, corn oil or olive oil and performed 16S rRNA gene sequencing of the colon microbiome and mass spectrometry-based relative quantification of the colonic metaproteome. The corn oil diet, rich in omega-6 polyunsaturated fatty acids, increased the potential for pathobiont survival and invasion in an inflamed, oxidized and damaged gut while saturated fatty acids promoted compensatory inflammatory responses involved in tissue healing. We conclude that various lipids uniquely alter the host-microbe interaction in the gut. While high-fat consumption has a distinct impact on the gut microbiota, the type of fatty acids alters the relative microbial abundances and predicted functions. These results support that the type of fat are key to understanding the biological effects of high-fat diets on gut health.

scholarly journals PARTICIPATION OF PHOSPHOLIPIDES IN LYMPHATIC TRANSPORT OF ABSORBED FATTY ACIDS

1951 ◽  
Vol 189 (1) ◽  
pp. 261-267 ◽  
Author(s):  
B. Bloom ◽  
I.L. Chaikoff ◽  
W.O. Reinhardt ◽  
W.G. Dauben
Keyword(s):  
Fatty Acids ◽  
Lymphatic Transport

scholarly journals Semi-Lethal Primary Ciliary Dyskinesia in Rats Lacking the Nme7 Gene

2021 ◽  
Vol 22 (8) ◽  
pp. 3810
Author(s):  
Lucie Šedová ◽  
Ivana Buková ◽  
Pavla Bažantová ◽  
Silvia Petrezsélyová ◽  
Jan Prochazka ◽  
...  
Keyword(s):  
Primary Ciliary Dyskinesia ◽  
Gene Deletion ◽  
Cell Function ◽  
Nucleoside Diphosphate Kinase ◽  
Disease Status ◽  
Postnatal Growth ◽  
Sprague Dawley ◽  
Microtubule Organizing Center ◽  
Knock Out ◽  
Ciliary Dyskinesia

NME7 (non-metastatic cells 7, nucleoside diphosphate kinase 7) is a member of a gene family with a profound effect on health/disease status. NME7 is an established member of the ciliome and contributes to the regulation of the microtubule-organizing center. We aimed to create a rat model to further investigate the phenotypic consequences of Nme7 gene deletion. The CRISPR/Cas9 nuclease system was used for the generation of Sprague Dawley Nme7 knock-out rats targeting the exon 4 of the Nme7 gene. We found the homozygous Nme7 gene deletion to be semi-lethal, as the majority of SDNme7−/− pups died prior to weaning. The most prominent phenotypes in surviving SDNme7−/− animals were hydrocephalus, situs inversus totalis, postnatal growth retardation, and sterility of both sexes. Thinning of the neocortex was histologically evident at 13.5 day of gestation, dilation of all ventricles was detected at birth, and an external sign of hydrocephalus, i.e., doming of the skull, was usually apparent at 2 weeks of age. Heterozygous SDNme7+/− rats developed normally; we did not detect any symptoms of primary ciliary dyskinesia. The transcriptomic profile of liver and lungs corroborated the histological findings, revealing defects in cell function and viability. In summary, the knock-out of the rat Nme7 gene resulted in a range of conditions consistent with the presentation of primary ciliary dyskinesia, supporting the previously implicated role of the centrosomally located Nme7 gene in ciliogenesis and control of ciliary transport.

Effect of saturated fat diets on rat liver NADP-linked enzymes

1965 ◽  
Vol 209 (4) ◽  
pp. 773-780 ◽  
Author(s):  
Helen M. Tepperman ◽  
Jay Tepperman
Keyword(s):  
Fatty Acids ◽  
Enzyme Activity ◽  
Rat Liver ◽  
Corn Oil ◽  
Saturated Fat ◽  
Coconut Oil ◽  
Liver Slices ◽  
Fat Diets ◽  
Effect Of Feeding

The aggregate hexosemonophosphate dehydrogenase (HMPD) activity was found to be higher in livers of rats fed a diet containing saturated fat (hydrogenated coconut oil = H) for 7 days and fasted for 48 hr than it was in similarly prepared animals fed a corn oil (CO) diet. Later, a liver HMPD-increasing effect of feeding H was found in nonfasted animals. Lipogenesis (i.e., the incorporation of acetate-1-C14 into fatty acids by liver slices) was shown to be as low or lower in the H group as in the CO. Liver slices prepared from H and CO diet adapted rats were incubated with either acetate-1-C14 or palmitate-1-C14 and the extent of incorporation of C14 into individual fatty acids was measured. With both substrates more radioactivity was found in 16:1, 18:0, and 18:1 in the case of H-fed animals. It is proposed that a component of the signal for eliciting increased NADP-linked enzyme activity in the H rats was an increased rate of oxidation of NADPH attendant on monoene formation and chain lengthening.

Effects of high- and low-fat diets on the bioavailability of selected fatty acids, including linoleic acid, in adult men

1986 ◽  
Vol 6 (8) ◽  
pp. 931-955 ◽  
Author(s):  
Olukemi Olubajo ◽  
Mary W. Marshall ◽  
Joseph T. Judd ◽  
James T. Adkins
Keyword(s):  
Fatty Acids ◽  
Linoleic Acid ◽  
Low Fat ◽  
Adult Men ◽  
Fat Diets

scholarly journals Inclusion of rapeseed and pumpkin seed cakes in diets for Murciano-Granadina goats alters the fatty acid profile of milk

2021 ◽  
Vol 51 (2) ◽  
pp. 262-270
Author(s):  
I.M. Boldea ◽  
C. Dragomir ◽  
M.A. Gras ◽  
M. Ropotă
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Unsaturated Fatty Acids ◽  
Methyl Esters ◽  
Control Diet ◽  
Dietary Lipids ◽  
Italian Ryegrass ◽  
Pumpkin Seed ◽  
Lactating Goats

The objective of this research was to assess the effects of including oil-rich feedstuffs in diets for lactating goats on the fatty acid (FA) profile of their milk. Thirty-six Murciano-Granadina goats were randomly assigned to three treatment groups, namely a control diet (CTRL), a diet based on whole rapeseed (RS), and a diet based on pumpkin seed cake (PSC). The diets were composed of 1 kg hay (70 % Italian ryegrass, 30% alfalfa) and 1.24 kg concentrate, and were formulated to be isoenergetic and isonitrogenous. Milk yield and its contents of protein, fat and lactose did not differ significantly among the groups. However, including oil-rich feeds in the diet altered the fatty acid profile of the milk significantly, decreasing its saturated fatty acid (SFA) content and increasing its content of unsaturated fatty acids (UFAs). Effects on polyunsaturated fatty acids (PUFAs), conjugated linoleic acid (CLA), and the n-6 to n-3 ratio depended on the source of dietary lipids. The PSC augmented diet increased the relative amount of PUFAs and fatty acid methyl esters (FAME) in milk (+25 %) significantly In comparison with CTRL, whereas the RS diet produced a limited and statistically insignificant increase (+7.5%). The concentration of CLA was higher in milk from does fed the PSC diet, whereas the n-6 to n-3 ratio was lower in milk from does fed RS. These preliminary results form the basis for developing premium dairy products that are enriched in fatty acids that are more favourable for human health.

scholarly journals Ruminant fat intake improves gut microbiota, serum inflammatory parameter and fatty acid profile in tissues of Wistar rats

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Larissa de Brito Medeiros ◽  
Susana Paula Almeida Alves ◽  
Rui José Branquinho de Bessa ◽  
Juliana Késsia Barbosa Soares ◽  
Camila Neves Meireles Costa ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Gut Microbiota ◽  
Wistar Rats ◽  
High Fat Diets ◽  
Serum Biochemical ◽  
Anti Inflammatory ◽  
Diet Intake ◽  
Fat Diets ◽  
Gut Microbiota Composition

AbstractThis study tested the hypothesis that naturally and industrially produced trans-fatty acids can exert distinct effects on metabolic parameters and on gut microbiota of rats. Wistar rats were randomized into three groups according to the diet: CONT-control, with 5% soybean oil and normal amount of fat; HVF-20% of hydrogenated vegetable fat (industrial); and RUM-20% of ruminant fat (natural). After 53 days of treatment, serum biochemical markers, fatty acid composition of liver, heart and adipose tissue, histology and hepatic oxidative parameters, as well as gut microbiota composition were evaluated. HVF diet intake reduced triglycerides (≈ 39.39%) and VLDL levels (≈ 39.49%). Trans-fatty acids levels in all tissue were higher in HVF group. However, RUM diet intake elevated amounts of anti-inflammatory cytokine IL-10 (≈ 14.7%) compared to CONT, but not to HVF. Furthermore, RUM intake led to higher concentrations of stearic acid and conjugated linoleic acid in all tissue; this particular diet was associated with a hepatoprotective effect. The microbial gut communities were significantly different among the groups. Our results show that ruminant fat reversed the hepatic steatosis normally caused by high fat diets, which may be related to the remodelling of the gut microbiota and its anti-inflammatory potential.

scholarly journals The Effect of Eurycoma longifolia Jack on sICAM-1 and eNOS in Rats with High Fat Diet

2018 ◽  
Vol 4 (1) ◽  
pp. 28
Author(s):  
Anas Omar Ashkurfu ◽  
Kis Djamiatun
Keyword(s):  
Water Extract ◽  
Control Group ◽  
Sprague Dawley ◽  
High Fat ◽  
Control Group Design ◽  
Eurycoma Longifolia ◽  
Atherosclerotic Lesions ◽  
Post Test ◽  
Eurycoma Longifolia Jack ◽  
Fat Diets

Background: High fat diets are known to cause a positive fat balance and consequently to the accumulation of adipose mass, this diet does not seem to stimulate fat oxidation in the same way in obese and lean subjects. HFD was an inducing factor for ICAM-1 expression in the aorta of Wistar rats. HFD effect on ICAM-1 seems to be time dependent. ICAM-1 is one of the first events in the formation of atherosclerotic lesions. HFD up-regulated Cav-1, regulated expression other biomarker in HFD is eNOS. Recent studies showed that E. longifolia Jack protected HFD animal model from atherosclerosis based on the reduce atherosclerotic plaque size and formation HFD-rats treated with E. longifolia Jack.Objective: To prove that Eurycoma longifolia has anti inflammatory effect on endothelial cell blood vessels of Sprague Dawley rat with high fat diet.Method: Study design was experimental study, by used Randomized Post Test only Control Group Design with Kruskal-Wallis test was used to analyze the differences among groups and followed by a Mann Whitney test. Treatment is ethanolic or water extract of Eurycoma longifolia Jack, and out come are sICAM-1 and eNOS levels. Thirty Sprague Dawley (SD) Rat, were divided into 6 groups. C(-) was SD group, C(+) was group with HFD, X1 (SD treated with EL dosage 10 mg/kg), X2 (SD treated with EL dosage 15 mg/kg), X3 (HFD treated with EL dosage 10 mg/kg), X4 (HFD treated with EL dosage 15 mg/kg).

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