7-Difluoromethoxy-5,4′-dimethoxy-genistein attenuates macrophages apoptosis to promote plaque stability via TIPE2/TLR4 axis in high fat diet-fed ApoE mice

2021 ◽  
Vol 96 ◽  
pp. 107477
Author(s):  
Li Cong ◽  
Xiaolin Xie ◽  
Sujuan Liu ◽  
Liping Xiang ◽  
Yong Zhang ◽  
...  
Keyword(s):  
High Fat Diet ◽  
High Fat ◽  
Plaque Stability

scholarly journals Huang-Lian-Jie-Du Decoction Attenuates Atherosclerosis and Increases Plaque Stability in High-Fat Diet-Induced ApoE-/- Mice by Inhibiting M1 Macrophage Polarization and Promoting M2 Macrophage Polarization

2021 ◽  
Vol 12 ◽  
Author(s):  
Yinhe Cai ◽  
Junmao Wen ◽  
Siwen Ma ◽  
Zhexing Mai ◽  
Qunzhang Zhan ◽  
...  
Keyword(s):  
High Fat Diet ◽  
Macrophage Polarization ◽  
Density Lipoprotein ◽  
Lipid Lowering ◽  
Foam Cell Formation ◽  
M2 Macrophage ◽  
Mrna Levels ◽  
High Fat ◽  
Plaque Stability ◽  
M1 Macrophage

Macrophage polarization plays a vital impact in triggering atherosclerosis (AS) progression and regression. Huang-Lian-Jie-Du Decoction (HLJDD), a famous traditional Chinese decoction, displays notable anti-inflammatory and lipid-lowering effects in different animal models. However, its effects and mechanisms on AS have not been clearly defined. We determined whether HLJDD attenuated atherosclerosis and plaques vulnerability by regulating macrophage polarization in ApoE−/− mice induced by high-fat diet (HFD). Furthermore, we investigated the effects of HLJDD on macrophage polarization in oxidized low-density lipoprotein (ox-LDL) induced RAW264.7 cells. For in vivo assay, compared with the model group, HLJDD ameliorated lipid metabolism, with significantly decreased levels of serum triglyceride, total cholesterol (CHOL), and lipid density lipoprotein. HLJDD suppressed serum tumor necrosis factor α (TNF-α) and IL-1β levels with increased serum IL-10 level, and inhibited mRNA level of NLRP3 inflammasome in carotid tissues. HLJDD enhanced carotid lesion stability by decreasing macrophage infiltration together with increased expression of collagen fibers and α-SMA. Moreover, HLJDD inhibited M1 macrophage polarization, which decreased the expression and mRNA levels of M1 markers [inducible nitric oxide synthase (iNOS) and CD86]. HLJDD enhanced alternatively activated macrophage (M2) activation, which increased the expression and mRNA levels of M2 markers (Arg-1 and CD163). For in vitro assay, HLJDD inhibited foam cell formation in RAW264.7 macrophages disturbed by ox-LDL. Besides, groups with ox-LDL plus HLJDD drug had a lower expression of CD86 and mRNA levels of iNOS, CD86, and IL-1β, but higher expression of CD163 and mRNA levels of Arg-1, CD163, and IL-10 than ox-LDL group. Collectively, our results revealed that HLJDD alleviated atherosclerosis and promoted plaque stability by suppressing M1 polarization and enhancing M2 polarization.

scholarly journals Low dose dietary nitrate improves endothelial dysfunction and plaque stability in the ApoE −/− mouse fed a high fat diet

2016 ◽  
Vol 99 ◽  
pp. 189-198 ◽  
Author(s):  
J.R. Bakker ◽  
N.P. Bondonno ◽  
T.A. Gaspari ◽  
B.K. Kemp-Harper ◽  
A.J. McCashney ◽  
...  
Keyword(s):  
Endothelial Dysfunction ◽  
High Fat Diet ◽  
Low Dose ◽  
High Fat ◽  
Dietary Nitrate ◽  
Plaque Stability ◽  
Apoe Mouse

scholarly journals Low dose dietary nitrate improves endothelial dysfunction & plaque stability in the ApoE-/- mouse fed a high fat diet

2017 ◽  
Vol 8 ◽  
pp. 80-81
Author(s):  
J.R. Bakker ◽  
N.P. Bondonno ◽  
T.A. Gaspari ◽  
B.K. Kemp-Harper ◽  
A.J. McCashney ◽  
...  
Keyword(s):  
Endothelial Dysfunction ◽  
High Fat Diet ◽  
Low Dose ◽  
High Fat ◽  
Dietary Nitrate ◽  
Plaque Stability ◽  
Apoe Mouse

scholarly journals Loss of ADAMTS4 reduces high fat diet-induced atherosclerosis and enhances plaque stability in ApoE−/− mice

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Saran Kumar ◽  
Mo Chen ◽  
Yan Li ◽  
Fiona H. S. Wong ◽  
Chung Wee Thiam ◽  
...  
Keyword(s):  
High Fat Diet ◽  
High Fat ◽  
Plaque Stability

Abstract 12529: Low Dose Oral Cyclophosphamide Therapy Reduces Atherosclerosis Progression and Promotes Plaque Stability in a Murine Model of Atherosclerosis

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Yayoi Sato-Okabayashi ◽  
Chiemi Nishida ◽  
Daida Hiroyuki ◽  
Shinya Munakata ◽  
Hiroshi Shimazu ◽  
...  
Keyword(s):  
Disease Progression ◽  
Murine Model ◽  
High Fat Diet ◽  
Low Dose ◽  
Oral Treatment ◽  
Underlying Mechanism ◽  
Matrix Metalloproteinase 2 ◽  
Immune Functions ◽  
High Fat ◽  
Plaque Stability

Introduction: Atherosclerosis is a chronic inflammatory disease and the primary cause of heart disease and stroke in Western countries. The cytotoxic drug cyclophosphamide (CPA) can modulate immune functions. Extended survival of patients with severe atherosclerosis has been reported after CPA treatment, but the underlying mechanism is still poorly understood. The objective of this study was to examine the antiatherosclerotic effects of CPA and the underlying mechanism in a murine model of atherosclerosis. Hypothesis: CPA treatment can alter inflammatory processes pivotal for the development of atherosclerosis, therefore limiting disease progression. Method: Apolipoprotein E deficient (ApoE-/-) mice fed a high fat diet received CPA resuspended in drinking water (37.5 g/kg /day p.o.) or water for 12 weeks, respectively. In an interventional protocol, mice fed a high fat diet received the same dose of CPA or water from week 14 to 18, respectively. Mice were sacrificed at week 12, 14 and 18, and aorta, peripheral blood cells, spleen cells and peritoneal cells of treated mice were analysed using histological methods and FACS analysis. Result: In a preventive protocol, continuous oral administration of low-dose CPA prevented disease initiation in ApoE-/- mice fed with a high fat diet. Encouraged by these data we treated mice with pre-established atherosclerosis for 4 weeks with CPA, in an interventional protocol. CPA treatment delayed disease progression in mice with advanced atherosclerosis and reduced the macrophage infiltration in plaques. Importantly, improved plaque stability with a thicker fibrous cap, and an increase in collagen deposition and decreased matrix metalloproteinase-2 and -9 expression, and a reduction of classical inflammatory macrophage (M1) numbers was observed. In addition, CPA treatment reduced the numbers of IFN-γ-producing TH1, but not TH2 lymphocytes in vivo. Conclution: Our data demonstrate that oral treatment with CPA inhibits atherosclerosis initiation and progression in ApoE-/- mouse model, through pleiotropic immunomodulatory effects on lymphoid and myeloid cells. Thus, CPA may be a valuable drug for treating advanced atherosclerosis.

Effects of Maternal Flaxseed Supplementation on Female Offspring of Diabetic Rats in Serum Concentration of Glucose, Insulin, and Thyroid Hormones

2019 ◽  
Vol 89 (1-2) ◽  
pp. 45-54
Author(s):  
Akemi Suzuki ◽  
André Manoel Correia-Santos ◽  
Gabriela Câmara Vicente ◽  
Luiz Guillermo Coca Velarde ◽  
Gilson Teles Boaventura
Keyword(s):  
Thyroid Hormones ◽  
High Fat Diet ◽  
Female Offspring ◽  
Flaxseed Oil ◽  
Diabetic Rats ◽  
High Fat ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Flaxseed Flour ◽  
Maternal Consumption

Abstract. Objective: This study aimed to evaluate the effect of maternal consumption of flaxseed flour and oil on serum concentrations of glucose, insulin, and thyroid hormones of the adult female offspring of diabetic rats. Methods: Wistar rats were induced to diabetes by a high-fat diet (60%) and streptozotocin (35 mg/kg). Rats were mated and once pregnancy was confirmed, were divided into the following groups: Control Group (CG): casein-based diet; High-fat Group (HG): high-fat diet (49%); High-fat Flaxseed Group (HFG): high-fat diet supplemented with 25% flaxseed flour; High-fat Flaxseed Oil group (HOG): high-fat diet, where soya oil was replaced with flaxseed oil. After weaning, female pups (n = 6) from each group were separated, received a commercial rat diet and were sacrificed after 180 days. Serum insulin concentrations were determined by ELISA, the levels of triiodothyronine (T3), thyroxine (T4) and thyroid-stimulating hormone (TSH) were determined by chemiluminescence. Results: There was a significant reduction in body weight at weaning in HG (−31%), HFG (−33%) and HOG (44%) compared to CG (p = 0.002), which became similar by the end of 180 days. Blood glucose levels were reduced in HFG (−10%, p = 0.044) when compared to CG, and there was no significant difference between groups in relation to insulin, T3, T4, and TSH after 180 days. Conclusions: Maternal severe hyperglycemia during pregnancy and lactation resulted in a microsomal offspring. Maternal consumption of flaxseed reduces blood glucose levels in adult offspring without significant effects on insulin levels and thyroid hormones.

Topical Application of Capsaicin Reduces Visceral Adipose Fat by Affecting Adipokine Levels in High-Fat Diet-Induced Obese Mice

Obesity ◽  
2012 ◽  
Author(s):  
Gong-Rak Lee ◽  
Mi Kyung Shin ◽  
Dong-Joon Yoon ◽  
Ah-Ram Kim ◽  
Rina Yu ◽  
...  
Keyword(s):  
Topical Application ◽  
High Fat Diet ◽  
Obese Mice ◽  
High Fat ◽  
Visceral Adipose
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