Search results for "Randia"
showing 10 items of 91 documents
Postprandial adaptation of intestinal lipid metabolism : role of CD36 and PPAR beta
2011
Postprandial hypertriglyceridemia is an emerging risk factor for cardiovascular diseases and is associated with metabolic syndrome, obesity and insulin resistance. The small intestine participates in the postprandial triglyceridemia since both the size and number of secreted chylomicrons modulate lipoprotein lipase activity (LPL). Chylomicron synthesis is a complex mechanism in which the lipidation of Apolipoprotein B48 (ApoB48) by the Microsomal Triglyceride Transfer Protein (MTP) and the transfer between reticulum and Golgi in which the Liver Fatty Acid Binding Protein (L -FABP) is involved are limiting steps. An intestinal fat-mediated adaptation in postprandial period has been demonstra…
Tavallisen ihmisen uskottavuus mainoksen suosittelijana ja uskottavuuden vaikutus asenteeseen mainosta ja brandia kohtaan
2012
Tutkimuksen tavoitteena oli tutkia tavallisten ihmisten käyttöä mainoksen suosittelijoina, tavallisen ihmisen uskottavuutta suosittelijana ja uskottavuuden vaikutusta asenteeseen mainosta ja brandia kohtaan. Aikaisempaa tutkimusta aiheesta löytyi melko vähän, joten teoriapohjana käytettiin source credibility –teoriaa, jota on käytetty julkisuuden henkilöitä mainosten suosittelijoina tutkittaessa. Muiden aikaisempien tutkimustulosten perusteella mallia muokattiin niin, että tavallisen ihmisen uskottavuus suosittelijana oletettiin muodostuvan luotettavuudesta, asiantuntijuudesta ja samankaltaisuudesta. Tutkimukseen valittiin kolme erilaista, ulkonäköön liittyvää mainosta, joissa suosittelijoi…
Glucose lowering and anti-atherogenic effects of incretin-based therapies: GLP-1 analogues and DPP-4-inhibitors
2009
Type 2 diabetes is a chronic, progressive disease with a multi-faceted pathophysiology. Beyond the known defects of insulin resistance and beta-cell insufficiency, derangement of incretin hormones normally produced from the gut wall in response to food intake play an important role. In recent years, the 'incretin-based' therapies (IBTs) have been developed to address hyperglycemia through either mimicking the action of the endogenous incretin glucagon-like polypeptide (GLP-1) (GLP-1 receptor agonists) or by inhibiting the activity of the enzyme that degrades GLP-1 (the dipeptyl peptidase-4 inhibitors).We reviewed available evidence on the glucose lowering and anti-atherogenic effects of IBT…
Lipemia postprandial y regulación génica en la obesidad mórbida
2018
La obesidad es una enfermedad multifactorial que ocasiona una alteración metabólica crónica. Los pacientes con obesidad mórbida presentan un riesgo elevado de desarrollar enfermedades cardiovasculares, así como de presentar resistencia a la insulina implicada en la patogenia del síndrome metabólico y el desarrollo de diabetes mellitus tipo 2. La incapacidad actual para prevenir o revertir el desarrollo de la obesidad nos obliga a buscar estrategias alternativas para identificar a aquellos sujetos con un mayor riesgo de desarrollar complicaciones cardiometabólicas. La heterogeneidad existente parece no poder explicarse por los factores de riesgo “clásicos” conocidos. La lipemia postprandial …
Sobrecarga oral con grasa insaturada y estrés oxidativo en sujetos con obesidad abdominal
2015
Introducción: la enfermedad cardiovascular (ECV) constituye la primera causa de morbimortalidad en los países desarrollados. La base patogénica de la ECV es la arteriosclerosis. La obesidad abdominal (OA) es una de las principales causas para el desarrollo de alteraciones metabólicas como insulinorresistencia (IR), DM-2, HTA, y dislipemia mixta y por tanto del riesgo de desarrollar arteriosclerosis y ECV. La OA y la IR generan estrés oxidativo, mecanismo implicado en el desarrollo de la arteriosclerosis. Los sujetos con OA e IR presenta un aumento de estrés oxidativo tanto en estado basal como postprandial. Desde varias décadas se considera la lipemia postprandial (LPP) como un factor de ri…
Influencia de la situación postprandial sobre el eje CCL11/CCR3 en sujetos con hipercolesterolemia
2020
Introducción: La enfermedad cardiovascular es la principal causa de morbilidad y mortalidad a nivel mundial y su base patogénica es la arteriosclerosis (AE). La hipercolesterolemia primaria es uno de los factores de riesgo más importantes para la AE y este proceso está asociado a cierto grado de inflamación sistémica, habiéndose descrito en la actualidad varias citoquinas quimiotácticas involucradas en el proceso arteriosclerótico. Se ha detectado la influencia de la eotaxina-1 (CCL11) y de su receptor, CCR3, en la aparición y desarrollo de la arteriosclerosis, así como la influencia de la lipemia postprandial (LPP) como factor de riesgo independiente de enfermedad cardiovascular, aunque no…
Mécanisme d’absorption intestinale des acides gras à longue chaîne : rôle émergent du CD36
2012
International audience; Excessive lipid intake, associated with a qualitative imbalance, favors the development of obesity and associated diseases. Among the organs involved in lipid homeostasis, the small intestine remains the most poorly known although it is responsible for the lipid bioavailability and largely contributes to the regulation of postprandial hypertriglyceridemia. The mechanism of long chain fatty acid (LCFA) intestinal absorption is not totally elucidated. The synthesis of recent literature indicates that the intestine is able to adapt its absorption capacity to the fat content of the diet. This adaptation takes place through a fat-coordinated induction of LBP and apolipopr…
AT1 Receptor Gene Polymorphisms in relation to Postprandial Lipemia
2011
Background. Recent data suggest that the renin-angiotensin system may be involved in triglyceride (TG) metabolism. We explored the effect of the common A1166C and C573T polymorphisms of the angiotensin II type 1 receptor (AT1R) gene on postprandial lipemia.Methods. Eighty-two subjects measured daytime capillary TG, and postprandial lipemia was estimated as incremental area under the TG curve. The C573T and A1166C polymorphisms of the AT1R gene were determined.Results. Postprandial lipemia was significantly higher in homozygous carriers of the 1166-C allele (9.39±8.36 mM*h/L) compared to homozygous carriers of the 1166-A allele (2.02±6.20 mM*h/L) (P<0.05). Postprandial lipemia was similar…
Cilostazol and atherogenic dyslipidemia: a clinically relevant effect
2011
Cilostazol is a reversible, selective inhibitor of PDE3A able to significantly improve walking distance in patients with intermittent claudication. However, beyond its antiplatelet and vasodilator properties, cilostazol seems to have significant effects on atherogenic dyslipidemia.The effects of cilostazol on plasma lipids, lipoproteins, apolipoproteins and postprandial lipemia are reviewed. A literature search (using Medline and Scopus) was performed up to 24 October 2010. The authors also manually reviewed the references of selected articles for any pertinent material.Cilostazol is able to significantly lower plasma triglyceride levels, with a concomitant increase in high-density lipoprot…
Management of Dyslipidemia in the Metabolic Syndrome
2007
In order to characterize the metabolic syndrome it becomes necessary to establish a number of diagnostic criteria. Because of its impact on cardiovascular morbidity/mortality, considerable attention has been focussed on the dyslipidemia accompanying the metabolic syndrome. The aim of this review is to highlight the fundamental aspects of the pathophysiology, diagnosis, and the treatment of the metabolic syndrome dyslipidemia with recommendations to clinicians. The clinical expression of the metabolic syndrome dyslipidemia is characterized by hypertriglyceridemia and low levels of high-density lipoprotein-cholesterol (HDL-C). In addition, metabolic syndrome dyslipidemia is associated with hi…