Academic literature on the topic 'Acides gras polyinsaturé oméga-3'
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Journal articles on the topic "Acides gras polyinsaturé oméga-3"
Kouakou, N’Goran David Vincent, Kouadio Frédéric Koffi, Cho Euphrasie Monique Angbo-Kouakou, Gningnini Alain Koné, Gouha Firmin Kouassi, Kouakou Ernest Amoikon, and Maryline Kouba. "Enrichissement en acides gras polyinsaturés oméga-3 du jaune d’œuf de cailles (Coturnix coturnix japonica) par les graines d’euphorbe (Euphorbia heterophylla)." Revue d’élevage et de médecine vétérinaire des pays tropicaux 70, no. 3 (March 15, 2018): 99. http://dx.doi.org/10.19182/remvt.31523.
Full textDenis, I., C. Heberden, S. Vancassel, and M. Lavialle. "Acides gras polyinsaturés n-3 (oméga 3) et cerveau." Médecine & Nutrition 47, no. 2 (2011): 17–28. http://dx.doi.org/10.1051/mnut/201120004.
Full textAstorg, P., P. Guesnet, JM Alessandri, P. Galan, and M. Lavialle. "Acides gras polyinsaturés en oméga-3 et santé : aperçu des connaissances actuelles." Sciences des Aliments 26, no. 1 (February 28, 2006): 8–28. http://dx.doi.org/10.3166/sda.26.8-28.
Full textSergent, Odile, Normand Podechard, Fatiha Aliche-Djoudi, and Dominique Lagadic-Gossmann. "Acides gras polyinsaturés oméga 3 et toxicité hépatique de l’éthanol : rôle du remodelage membranaire." Nutrition Clinique et Métabolisme 28, no. 1 (February 2014): 17–28. http://dx.doi.org/10.1016/j.nupar.2013.10.003.
Full textFerchaud-Roucher, V., M. Croyal, M. Krempf, and K. Ouguerram. "P125: Les acides gras polyinsaturés oméga 3 augmentent l’activité de la lécithine cholestérol acyltransférase." Nutrition Clinique et Métabolisme 28 (December 2014): S133. http://dx.doi.org/10.1016/s0985-0562(14)70767-8.
Full textGeusens, Piet. "Lipides : acides gras polyinsaturés Oméga-3, leur rôle anti-inflammatoire, l'exemple de la polyarthrite rhumatoïde." Nutrition Clinique et Métabolisme 10, no. 1 (January 1996): 33–34. http://dx.doi.org/10.1016/s0985-0562(96)80048-3.
Full textGenot, Claude, Sylvie Eymard, and Michèle Viau. "Comment protéger les acides gras polyinsaturés à longues chaînes oméga 3 (AGPI -- LC ω3) vis-à-vis de l’oxydation ?" Oléagineux, Corps gras, Lipides 11, no. 2 (March 2004): 133–41. http://dx.doi.org/10.1051/ocl.2004.0133.
Full textDOREAU, M., V. FIEVEZ, A. TROEGELER-MEYNADIER, and F. GLASSER. "Métabolisme ruminal et digestion des acides gras longs chez le ruminant : le point des connaissances récentes." INRAE Productions Animales 25, no. 4 (October 2, 2012): 361–74. http://dx.doi.org/10.20870/productions-animales.2012.25.4.3224.
Full textCai, F., Y. M. Dupertuis, V. Granci, M. Rouzaud, R. Miralbell, and C. Pichard. "P146 Analyse des mécanismes d’interaction entre acides gras polyinsaturés oméga-3 et radiothérapie dans deux lignées cellulaires d’adénocarcimomes colorectaux humains." Cahiers de Nutrition et de Diététique 46 (December 2011): S123. http://dx.doi.org/10.1016/s0007-9960(11)70230-9.
Full textValera, B., E. Dewailly, and P. Poirier. "Effet des acides gras polyinsaturés oméga-3 sur la tension artérielle chez les Inuits du Nunavik, Nord du Québec, Canada." Revue d'Épidémiologie et de Santé Publique 56, no. 5 (September 2008): 288. http://dx.doi.org/10.1016/j.respe.2008.06.114.
Full textDissertations / Theses on the topic "Acides gras polyinsaturé oméga-3"
Pineda, Catherine. "Les acides gras Oméga 3 polyinsaturés : ont-ils un rôle antiathérogène ?" Bordeaux 2, 1993. http://www.theses.fr/1993BOR2PE71.
Full textGhandour, Rayane. "Effet des acides gras polyinsaturés sur la conversion des adipocytes blancs en adipocytes brites." Thesis, Nice, 2016. http://www.theses.fr/2016NICE4010/document.
Full textThere are two types of thermogenic adipocytes able to use fatty acids and glucose to produce heat. We distinguish brown adipocytes from the brown adipose tissue and ‘’brite’’ adipocytes which occur into the white adipose tissue. Recently, the characterization of functional brown and brite adipocytes in adult humans has led to the consideration of their use to treat obesity by increasing energy expenditure. My thesis project was to study the effect of dietary polyunsaturated fatty acids, on the conversion of white into brite adipocytes, in vitro and in vivo, in humans and rodents respectively. We demonstrated that arachidonic acid ω6, precursor of prostaglandins, has 1) an inhibitory effect on the recruitment of brite adipocytes via prostaglandins E2 and F2α and 2) an activatory effect via prostacyclin. In fact, prostacyclin induces the conversion of white into brite adipocytes through the IP receptor and the PPARs signaling pathways. Based on human present nutritional recommendations, we demonstrated that a supplementation of ω3 fatty acids in mice diet was able to inhibit the negative effect of ω6 fatty acids and activate brown adipose tissue. Our data highlights the importance of arachidonic acid bioavailability on the biology of adipose tissue and reinforce the idea that an equilibrate ω6/ω3 ratio is a tool that can be used to prevent overweight obesity and associated metabolic disorders
Morneau, Pascale. "Risque de cancer du sein et acides gras polyinsaturés oméga-3, étude cas-témoins." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0022/MQ51155.pdf.
Full textColin, Julie. "Le vieillissement membranaire cérébral : conséquences fonctionnelles et protection par les acides gras polyinsaturés oméga-3 alimentaires." Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0078/document.
Full textOne of the marked societal phenomena in recent decades is the aging of populations due to continually increasing lifespans and as a result, a considerable surge in the number and proportion of elderly, particularly in Western countries. In this demographic context, the rise of chronic diseases related to aging, including Alzheimer’s disease and other types of dementia, has become a major public health issue. The impact of modifiable environmental factors, evolution of the pathogenic mechanisms involved, and the lack of curative treatments illustrates the need for the development of interventions to prevent or delay the onset of these aging-related diseases. The present work demonstrates the importance of using age-adapted study models and experimental methods with the goal towards slowing or delaying age-related deleterious processes. Secondly, our results have identified membranes as an essential part for normal brain function. The composition and architectural changes in the neuronal membranes of elderly mice disrupt their functionality and reduce neuroprotective responsiveness such as those sought by anti-Alzheimer’s therapies. We also observed similar pro-aging-type changes in brain membranes of dyslipidemic mice fed a high-fat diet. Thus, disturbances of lipid homeostasis are correlated with an increased risk of developing aging-related cardiovascular and metabolic as well as neurodegenerative diseases. We finally demonstrated the preventive potential of dietary supplementation with docosahexaenoic acid, the most abundant long-chain polyunsaturated fatty acid in the brain, and observed its ability to restore a neuroprotective response that was impaired in older mice
Campan, Philippe. "Les oméga-3 polyinsaturés dans le traitement de la gingivite expérimentale humaine : évaluation clinique et biochimique." Toulouse 3, 1996. http://www.theses.fr/1996TOU30171.
Full textCoulombe, Katherine. "Effets des acides gras polyinsaturés oméga-3 dans deux modèles murins de maladie de Parkinson." Master's thesis, Université Laval, 2017. http://hdl.handle.net/20.500.11794/28207.
Full textParkinson's disease (PD) is an incurable neurodegenerative disease affecting the integrity of the dopaminergic system of patients. Several studies suggest that lifestyle and eating habits influence the onset and progression of the disease. A diet rich in omega-3 polyunsaturated acid (n-3 PUFA) shows protective effects on the dopaminergic system and a decrease of the neuronal degeneration in the substancia nigra (SNpc). The hypothesis that we propose is that a diet enriched in n-3 PUFA would slow the progression of the disease in a 6-hydroxydopamine (6-OHDA) mice model and influence the presence of alpha-synuclein aggregates (αSyn) in the brain of a transgenic mice overexpressing the human αSyn, Thy1-αSyn mice. Our results show partial neurorecuperation of the dopaminergic system with an enriched diet. The n-3 PUFAs show little influence on the expression of αSyn levels. Altough, they seem to modulate the levels of different synaptic proteins in transgenic mice and increase mice longevity.
Caron-Dorval, Dominique. "L'effet du polymorphisme PPARalpha-L162V sur la réponse lipidique à une supplémentation en acides gras polyinsaturés oméga-3." Master's thesis, Université Laval, 2014. http://hdl.handle.net/20.500.11794/25389.
Full textThe main objective of this master degree project was to examine whether omega-3 polyunsaturated fatty acids induced changes in cardiovascular disease risks factors are influenced by the PPAR L162V polymorphism. A total of 14 men carriers of the V162 allele and 14 L162 homozygotes were matched according to age and body mass index. All men were supplemented daily with 5g of fish oil during a 6-week period. At screening, both genotype groups were similar for anthropometric indices and plasma lipoprotein/lipid concentrations. Independently of the genotype, the supplementation was associated with a significant decrease in plasma triglyceride and fasting glucose concentrations, diastolic blood pressure and with an increase in total Apolipoprotein B concentrations. A significant genotype-by-diet interaction effect was observed for plasma C-reactive protein concentrations. The PPAR L162V polymorphism may contribute to the interindividual variability in the cardiovascular disease risk factor response to omega-3 polyunsaturated fatty acids.
Ibrahim, Ayman. "Modulation nutritionnelle de la réponse inflammatoire intestinale par les acides gras polyinsaturés oméga-3 : contribution des cellules endothéliales." Rouen, 2010. http://www.theses.fr/2010ROUES006.
Full textInflammatory bowel diseases are parts of public health priorities in gastroenterology because of their prevalence, their chronicity, their strong impact on the quality of life of patients and their cost. In addition to recent progress in the field of biotherapy, nutritional modulation of intestinal inflammation offer therapeutic possibilities simple, safe and inexpensive. Polyunsaturated fatty acids omega-3 (ω-3) exert anti-inflammatory effects both in vitro and in vivo. The purpose of this work was to evaluate the effects of ω-3 on two experimental models of intestinal inflammation : in vivo and in vitro. The first study evaluated the effectiveness of an original formulation, highly concentrated in plant-derived ω3 (ALA) on a model of colitis induced by TNBS in rats, and clarified the mechanisms of action of ω3. The food was supplemented either with ω3 (ALA) or corn oil (lipid control). The rate of TNFα mRNA and IL-1β was measured by using PCR. The colonic expression of inflammatory mediators was determined by Western blot. The production of PGE2 and LTB4 was measured by ELISA. The study of erythrocyte phospholipids by gas chromatography confirmed the bioavailability and elongation of ALA. ω-3 supplementation exerted beneficial effects on intestinal inflammation with a reduction of macroscopic intestinal damage and the production of inflammatory mediators, and inhibition the activity of NF-kB. The second work evaluated the effect of docosahexaenoic acid (DHA), a long chain ω3, on human intestinal microvascular endothelial cells (HIMEC). HIMEC cells were pretreated with DHA or palmitic acid (lipid control) and then stimulated by IL-1β. The expression of adhesion molecules (VCAM-1, ICAM-1), COX-2, TLR, of IkBα, p-JNK and p-P38 was studied by Western blot. The cytokine production was evaluated by ELISA. DHA showed anti-inflammatory effects : Diminution the expression of VCAM-1, COX-2 and TLR-4, reduction the production of PGE2, IL-6 and IL-8. These results suggest a beneficial role of DHA on the endothelial component of intestinal inflammation. The third work evaluated the effects of a formulation rich in ALA on the expression of adhesion molecules and HO-1 in a model of colitis induced by TNBS. The rats were fed a diet supplemented with either ALA or corn oil. Nutritional Intervention by ALA reduced the expression of ICAM-1 and VCAM-1 in this model of colitis but did not alter the expression of HO-1. These results suggest beneficial effects of ALA supplementation on the expression of adhesion molecules in TNBS-induced colitis independently of HO-1. Conclusion : These studies highlight the therapeutic potential of ω3 for the treatment of intestinal inflammation and motivate the development and clinical evaluation of adequate formulation to achieve adequate concentrations in situ and to ensure good complain
Plé, Aude Marie-Laure. "Effet de l'acide docosahexaenoïque (DHA), un acide gras polyinsaturé de la famille n-3, dans l'activation des cellules T." Dijon, 2008. http://www.theses.fr/2008DIJOS057.
Full textIn this study, we investigated the role of docosahexaenoic acid, an n-3 PUFA, in the regulation of calcium, Src tyrosine kinase signaling and activation of TRPC3/6 channels. Furthermore, in mouse T regulatory cells we have shown that DHA via an inhibition of IL-10 induces in vivo and in vitro an inhibition of cell proliferation. The analysis of chemokines shows that DHA exert an effect on T reg migration and adhesion by regulating the expression of ERK1/2 and Akt protein. DHA modulates cell functions directly in the form of free fatty acid or, indirectly in etherified form at the sn-2 position in diacylglycerol (DAG). Classically, calcium influx is achieved following intracellular calcium stores depletion, through a mechanism termed as store-operated Ca2+ (SOC) entry (SOCE), via the opening of SOC channels that can be CRAC (Ca2+ release-activated Ca2+ channels) channels or TRPC (Canonical Transient Receptor Potential) channels. Among TRPC channels, TRPC3/6/7 channels are those which are regulated by DAG. In Jurkat T cells, only TRPC3 and TRPC6 were present and express differentially in relation to cell cycle and proliferation. In U937 cells, DHA induced increases in [Ca2+]i via the opening of CRAC channels and activation of PKC. . . By a physiological point of view, we have demonstrated that DHA-induced Ca2+ signaling can initiate apoptosis pathway, as assessed by the measurement of reactive oxygen species (ROS) production and caspase-3 activation. Together, these observations suggest that DHA exert immunomodulatory effects in part, by decreasing pHi, increasing [Ca2+]i and inhibiting PKC/MAP kinase pathway. Ngl
Sehl, Anthony. "Impact de la forme moléculaire et supramoléculaire de vectorisation des acides gras polyinsaturés n-3 sur leur biodisponibilité : étude physico-chimique et in vivo chez le rat." Thesis, Bordeaux, 2019. http://www.theses.fr/2019BORD0065.
Full textThe latest data from the cross-sectional national French dietary study show that dietary intakes of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are significantly lower than those recommended by the French Agency for Food, Environmental and Occupational Health & Safety (ANSES). Considering their physiological roles, improving their dietary intake has became a nutritional priority. The control of the different forms of n-3 long chain polyunsaturated fatty (n-3 LC-PUFA) intake represents an interesting way to address this issue. In this context, this thesis aims at studying the influence of the molecular form (phospholipids (PL) vs triglycerides (TG)) and/or supramolecular form (continuous phase, emulsion, liposomes) of n-3 LC-PUFA towards their bioavailability.The experimental approach consisted in characterizing the different forms of n-3 LC-PUFAs by coupling various physicochemical methods (optical microscopy, granulometry, measurement of primary and secondary oxidation products, enzymatic lipolysis). The data obtained made it possible to propose some mechanistic hypothesis for the bioavailability studies conducted in rat. Thus, in a second step, the in vivo study made addresses (1) the intestinal absorption of fatty acids following a single dose of lipids and (2) the lipid tissue accretion following an 8-week diet.The data obtained from the intestinal absorption study indicate that the molecular form of n-3 LC-PUFA targeting (marine TG vs marine PL, in continuous phase) does not influence their intestinal absorption but rather their incorporation into lymphatic lipids, which are the main carriers for dietary fatty acids in the organism. Conversely, structuring marine PL (emulsion or liposomes) improves the EPA and DHA absorption, but differently according to the supramolecular form. The results concerning tissue accretion show that, after 8-week diet, the tissue enrichment in n-3 LC-PUFA is different according to the molecular form of targeting. The consumption of marine TG favours the incorporation of n-3 LC-PUFA into hepatic lipids, while the supplementation of diets with marine PL targets DHA preferentially to brain and retina.All these results show that the molecular form of targeting (PL vs TG) of n-3 LC-PUFA can be a way for managing their tissue incorporation, whereas the supramolecular organization (emulsion or liposomes) can be envisaged to monitor their intestinal absorption
Books on the topic "Acides gras polyinsaturé oméga-3"
Canada. Agriculture et agroalimentaire Canada. Enrichir la viande de porc en acides gras oméga-3. [Ottawa]: Agriculture et Agroalimentaire Canada, 2008.
Find full textGervais, Gérard. Les oméga-3 pour guérir: Prévention, soulagement, rémission des malaises et maladies de type chronique. Montréal: Guérin, 2004.
Find full textLucas, Michel. Santé la Gaspésie: Les oméga-3 d'origine marine et leurs bienfaits sur la santé : plus de 60 recettes savoureuses composées de poisson et de fruits de mer. 2nd ed. [Sainte-Anne-des-Monts]: Malisan Inc., 2003.
Find full textCanada. Agriculture and Agri-Food Canada. Enriching pork with omega-3 fats. [Ottawa]: Agriculture and Agri-Food Canada, 2008.
Find full textMichel, Lucas, and Lepage Maryse 1954-, eds. Santé la Gaspésie: Informations sur les bienfaits des acides gras oméga-3 d'origine marine et recettes savoureuses composées de poisson et de fruits de mer. Sainte-Anne-des-Monts]: [Malisan Inc.], 2002.
Find full textThe omega-3 connection: The groundbreaking omega-3 antidepression diet and brain program. New York: Simon & Schuster, 2001.
Find full textA, Drevon C., Baksaas I, and Krokan Hans, eds. Omega-3 fatty acids: Metabolism and biological effects. Basel: Birkhäuser Verlag, 1993.
Find full textDrevon, C. A., and I. Baksaas. Omega-3 Fatty Acids: Metabolism and Biological Effects (Advances in Life Sciences). Birkhauser, 1993.
Find full textBook chapters on the topic "Acides gras polyinsaturé oméga-3"
"4: Acides gras polyinsaturés : les familles linoléique (oméga-6) et alpha-linolénique (oméga-3)." In Un regard passionné sur les lipides et les matières grasses, 97–136. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2075-7-007.
Full text"4: Acides gras polyinsaturés : les familles linoléique (oméga-6) et alpha-linolénique (oméga-3)." In Un regard passionné sur les lipides et les matières grasses, 97–136. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2075-7.c007.
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