Atherosclerosis non transgenic mice high fat diet

The average diameter of adipocytes in each group was calculated and the cell size distribution was analyzed and expressed as a percentage. The rabbits were injected with glucose solution 0.

Apolipoprotein E: Lipoprotein profile characterization of the KKA y mouse, a rodent model of type II diabetes, before and after treatment with the insulin-sensitizing agent pioglitazone. In response to an inflammatory stimulus, polyunsaturated fatty acids including AA, EPA, DHA, and DPA are released from phospholipids by phospholipase enzymes and then catalyzed by a series of lipoxygenases, namely, 5-lipoxygenase 5-LOXlipoxygenase LOXand lipoxygenase LOXto produce lipid mediators of inflammation and resolution Activation of these receptors leads to increased expression of inflammatory pathway enzymes, e.

Figure S2. Histologically, there are two types of lesion: Resolution is characterized by a switch in the production of lipid mediators from proinflammatory mediators, e. Thus, resolution therapy may represent a novel avenue for the integrated treatment of cardiometabolic disease. When acute inflammation cannot be controlled or resolved, chronic inflammation develops, which can result in organ dysfunction Regional specificities of monoclonal anti-human apolipoprotein B antibodies.

J Clin Invest. The ADAM17 effect is particularly interesting given that Mer proto-oncogene tyrosine kinase MerTKa key macrophage efferocytosis receptor in atherosclerotic lesions, is cleaved by this protease, resulting in defective lesional efferocytosis Increased free fatty acids in the circulation can also induce fatty liver and adipose accumulation, and reduce the response to insulin thereby causing IR [ 3 ].

The role of non-resolving inflammation in atherosclerosis

Inhibition of early atherogenesis in transgenic mice by human apolipoprotein AI. Thus, CaMKII activity in lesional macrophages represents an important hub orchestrating defective efferocytosis and impaired resolution.

Over time, the integrity of the fibrous cap may break down, leading to plaque rupture, which can trigger acute occlusive thrombosis and the associated clinical sequelae associated with tissue infarction 9 — Figure S4.

Thus, similar to the situation mentioned above with resolving macrophages, there is a positive resolution feedback cycle involving SPMs and efferocytosis.

Reference information: Our results showed that even when consuming normal numbers of calories similar to the normal chow diet, an HFFD induces IR and enhances the development of aortic and coronary atherosclerosis in WHHL rabbits.

These preclinical studies, together with the theoretical advantages of pro-resolution versus antiinflammatory therapy outlined above; the fact that SPMs are already being tested in clinical trials for other chronic inflammatory diseases ClinicalTrials. Genetic control of inflammatory gene induction and NF-kappa B-like transcription factor activation in response to an atherogenic diet in mice.

Non-alcoholic fatty liver disease NAFLD covers a wide spectrum of diseases ranging from mere steatosis to non-alcoholic stetatohepatitis NASH with possible progression to cirrhosis 1. The authors have declared that no conflict of interest exists.

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It should be pointed out that high-fat diet feeding did not increase plasma lipids in wild-type rabbits which have normal LDL receptors [ 20 ]. Islet number and islet area on the sections immunohistochemically stained with insulin monoclonal antibody were calculated as described previously [ 20 ].

Increased plasma levels of lipids are basically caused by high uptake of free fatty acids into the liver where they can be synthesized into VLDLs, which are accumulated in the plasma. In the current study; we fed both groups with restricted amount of each diet containing equal numbers of calories to minimize the HFFD effect on the body weight.

Probing the Genetics of Atherosclerosis in Transgenic Mice

This reduced response to insulin induced by HFFD was first noted at 4 weeks and continued at 8 and 16 weeks Additional file 1: Antiinflammation versus resolution therapy in atherosclerosis In view of the evidence suggesting that chronic inflammation plays an important role in plaque progression, therapeutic targeting of inflammation has been considered as a complementary strategy to LDL reduction for lowering the risk of atherosclerotic vascular disease.

The concept that 5-LOX is involved in atherosclerosis is also supported by human genetic findings. Control WHHL rabbits 2.

These mediators increase blood flow, endothelial cell permeability, and extravasation of PMNs As mentioned above, the MerTK receptor can be inactivated by the metalloproteinase ADAM17, which cleaves the receptor and causes it to shed its soluble extracellular domain that the non-transgenic control mice develop some atherosclerosis after being fed the atherogenic diet.) Among the 32 apo[a] animals examined, 27 had.

In contrast, transgenic animals on the high-fat diet had extensive atherosclerotic lesions (>microns 2/section) that were widely distributed throughout the proximal 1, microns of the aorta. Thus, human apo-B expression, in the setting of a diet rich in fats, causes severe atherosclerosis in by: It is now well established that inbred mouse strains differ in their susceptibility to high fat/high cholesterol diet-induced atherosclerosis 4, 5, 6with C57BL/6 mice showing susceptibility and strains A/J, BALB/c and C3H/He showing resistance to this by: Mice fed high-fat, high-cholesterol diets had a significantly higher incidence of gastritis than mice fed normal chow, 62% versus 5%, respectively (P,).

This effect was specific for LDLR 2/2 mice, because no. The mouse has long been thought to be a poor model for studying human lipoprotein metabolism and atherosclerosis.

One of the major problems in using the mouse for these studies is that mice have significantly less total plasma cholesterol than do humans and do not develop atherosclerosis when fed the standard mouse chow diet containing 4% fat Author: Edward Rubin, Joshua Schultz.

A mouse model of human familial hypercholesterolemia: markedly elevated low density lipoprotein cholesterol levels and severe atherosclerosis on a low-fat chow diet. Nat Med. ; 4: – Crossref Medline Google Scholar; 7 Veniant MM, Pierotti V, Newland D, Cham CM, Sanan DA, Walzem RL, Young SG.

Susceptibility to atherosclerosis in mice expressing exclusively apolipoprotein B48 or Cited by:

Atherosclerosis non transgenic mice high fat diet
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