“…In our previous work, using another model of genetically modified hyperlidemic mice such as apoE/LDLR -/-mice (7) we confirmed that the LCHP diet significantly increased the extent of advanced atherosclerosis in the aortic root and may promote plaque vulnerability. We also demonstrated that LCHP-fed apoE/LDLR -/-mice developed more extensive atherosclerosis than WD-fed mice, despite similar dietary fat and cholesterol contents but in our previous work we did not provide insight into mechanisms of pro-atherogenic effects of LCHP diet.…”
The pro-atherogenic effect of LCHP diet in apoE/LDLR-/- mice is associated with profound increase in LDL and VLDL cholesterol, VLDL triglicerides, liver SREBP-1 upregulation, and systemic inflammation.
“…In our previous work, using another model of genetically modified hyperlidemic mice such as apoE/LDLR -/-mice (7) we confirmed that the LCHP diet significantly increased the extent of advanced atherosclerosis in the aortic root and may promote plaque vulnerability. We also demonstrated that LCHP-fed apoE/LDLR -/-mice developed more extensive atherosclerosis than WD-fed mice, despite similar dietary fat and cholesterol contents but in our previous work we did not provide insight into mechanisms of pro-atherogenic effects of LCHP diet.…”
The pro-atherogenic effect of LCHP diet in apoE/LDLR-/- mice is associated with profound increase in LDL and VLDL cholesterol, VLDL triglicerides, liver SREBP-1 upregulation, and systemic inflammation.
“…2B). To investigate the role of γδ T cells in atherosclerosis, age- and gender-matched ApoE −/− and TCRδ −/− ApoE −/− mice were fed a Western diet for 10 weeks [12,13]. Aortas of these mice were perfused to rid the tissue of blood cells, isolated, and used for either flow cytometric analysis or atherosclerotic lesion quantification.…”
Objective
Gammadelta (γδ) T cells are a subset of pro-inflammatory innate-like T lymphocytes that serve as a bridge between innate and adaptive immunity. γδ T cells are highly enriched in cholesterol compared to αβ T cells. In this study, we aimed to identify the role of γδ T cells in atherosclerosis, a cholesterol and inflammation-driven disease.
Methods
We found that the percentages of γδ T cells are increased in ApoE−/− mice fed a Western diet. We generated TCRδ−/−ApoE−/− mice and fed them either rodent chow or a Western diet for ten weeks for the assessment of atherosclerosis.
Results
The atherosclerotic lesion size in diet-fed TCRδ−/−ApoE−/− mice was similar to that of diet-fed ApoE−/− mice. There were no differences in cytokine production or numbers of αβ T cells in aorta of TCRδ−/−ApoE−/− mice. Plasma lipoprotein profiles were unchanged by the absence of γδ T cells.
Conclusion
Our data suggest that γδ T cells do not contribute to early atherosclerotic plaque development.
“…[43][44][45] A recent meta-analysis of long-term randomised control trials, repor ted that such diets have neither specific bene fi cial nor detri mental effects on outcome markers of obesity, cardi ovas cu lar disease or glycaemic control. 46 Others disagree -at least in mice 47,48 and in results of cohort studies. Two cohort studies from the United States have repor ted that a low carbohydrate diet, high in animal protein was asso ci ated with higher all-cause mortal ity in both men and women, but not if the protein was mainly from plant sources.…”
Section: Evaluation Of Prom Ised Time-scalesmentioning
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