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Endothelial function diet

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https://www.readbyqxmd.com/read/28315324/nucleolin-protects-macrophages-from-oxldl-induced-foam-cell-formation-through-up-regulating-abca1-expression
#1
Yuanbin Li, Bimei Jiang, Pengfei Liang, Zhongyi Tong, Meidong Liu, Qinglan Lv, Yanjuan Liu, Xuanyou Liu, Yuting Tang, Xianzhong Xiao
Our recent studies have indicated that nucleolin, as a multifunctional RNA-binding protein, exerts protective effects in the myocardial cells and endothelial cells under the condition of oxidative stress. However, the function of nucleolin and its potential mechanism in macrophage-derived foam cell formation remain largely unexplored. ApoE-/- mice were fed with a high-fat diet (HFD) for 10-24 weeks. Protein expression was measured by western blotting or immunofluorescence, and gene expression at the mRNA level was detected by qRT-PCR...
March 14, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28302649/endothelial-protective-monocyte-patrolling-in-large-arteries-intensified-by-western-diet-and-atherosclerosis
#2
Amado Quintar, Sara McArdle, Dennis Wolf, Alex Marki, Erik Ehinger, Melanie Vassallo, Jacqueline F Miller, Zbigniew Mikulski, Klaus Ley, Konrad Buscher
Rationale: Non-classical mouse monocyte (CX3CR1(high), Ly-6C(low)) patrolling along the vessels of the microcirculation is critical for endothelial homeostasis and inflammation. Due to technical challenges it is currently not established how patrolling occurs in large arteries. Objective: This study was undertaken to elucidate the molecular, migratory and functional phenotype of patrolling monocytes in the high shear and pulsatile environment of large arteries in healthy, hyperlipidemic and atherosclerotic conditions...
March 16, 2017: Circulation Research
https://www.readbyqxmd.com/read/28297678/roles-for-cell-cell-adhesion-and-contact-in-obesity-induced-hepatic-myeloid-cell-accumulation-and-glucose-intolerance
#3
Yasutaka Miyachi, Kyoichiro Tsuchiya, Chikara Komiya, Kumiko Shiba, Noriko Shimazu, Shinobu Yamaguchi, Michiyo Deushi, Mizuko Osaka, Kouji Inoue, Yuta Sato, Sayaka Matsumoto, Junichi Kikuta, Kenjiro Wake, Masayuki Yoshida, Masaru Ishii, Yoshihiro Ogawa
Obesity promotes infiltration of inflammatory cells into various tissues, leading to parenchymal and stromal cell interaction and development of cellular and organ dysfunction. Liver sinusoidal endothelial cells (LSECs) are the first cells that contact portal blood cells and substances in the liver, but their functions in the development of obesity-associated glucose metabolism remain unclear. Here, we find that LSECs are involved in obesity-associated accumulation of myeloid cells via VLA-4-dependent cell-cell adhesion...
March 14, 2017: Cell Reports
https://www.readbyqxmd.com/read/28295458/improvement-in-erectile-function-in-a-rat-model-of-high-cholesterol-diet-induced-atherosclerosis-by-atorvastatin-in-a-manner-that-is-independent-of-its-lipid-lowering-property
#4
Z Zhang, L Tang, W Yu, Y Chen, Y-T Dai
The purpose of the present study is to explore the effects of a lipid-lowering drug atorvastatin, a three-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitor, in the treatment of erectile dysfunction (ED) in a rat model of atherosclerosis (AS) and the possible mechanisms underneath. A high-cholesterol diet was administrated to Sprague-Dawley rats in an attempt to induce an ASED model, which was later confirmed by abdominal aorta histopathology and erectile function evaluation. ASED rats were further assigned to non-treatment group, atorvastatin low-dose treatment group (5 mg kg(-1)  day(-1) ), high-dose group (10 mg kg(-1)  day(-1) ) and sildenafil (1...
March 10, 2017: Andrologia
https://www.readbyqxmd.com/read/28288470/circulating-concentrations-of-adipocytokines-and-their-receptors-in-the-isolated-corpus-cavernosum-and-femoral-artery-from-trained-rats-on-a-high-fat-diet
#5
Amanda C S Sponton, Fábio H Silva, Hygor N Araujo, Carmem P Valgas da Silva, Camila de Moraes, Edson Antunes, Angelina Zanesco, Maria A Delbin
BACKGROUND: The aim of the present study was to evaluate different signaling pathways by which exercise training would interfere in endothelial function in obesity. Therefore, we examined adipocytokine levels and their receptors in the corpus cavernosum and femoral artery from trained rats on a high-fat diet. METHODS: Functional experiments were performed in control sedentary and trained rats, and sedentary (h-SD) and trained male Wistar rats on a high-fat diet (h-TR)...
March 14, 2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28236429/adiponectin-improves-endothelial-function-in-mesenteric-arteries-of-high-fat-fed-wistar-rats-role-of-perivascular-adipose-tissue
#6
Cristina M Sena, Ana Pereira, Rosa Fernandes, Liliana Letra, Raquel M Seiça
BACKGROUND AND PURPOSE: Adiponectin, the most abundant peptide secreted by adipocytes, is involved in the regulation of energy metabolism and vascular physiology. Thus, we investigated the effects of exogenous administration of adiponectin on metabolism, vascular reactivity and perivascular adipose tissue (PVAT) of rat mesenteric arteries in high-fat fed Wistar rats. EXPERIMENTAL APPROACH: The effects of adiponectin were investigated on nitric oxide (NO)-dependent and independent vasorelaxation in isolated rat mesenteric arteries from 12-month-old male Wistar rats fed with high-fat diet during 4 months (HFD) and compared with age-matched control Wistar rats (W12m)...
February 25, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28235412/the-herbal-formula-kh-204-is-protective-against-erectile-dysfunction-by-minimizing-oxidative-stress-and-improving-lipid-profiles-in-a-rat-model-of-erectile-dysfunction-induced-by-hypercholesterolaemia
#7
Hoon Jang, Woong Jin Bae, Su Jin Kim, Hyuk Jin Cho, Seung Mo Yuk, Dong Seok Han, Chang Shik Youn, Eun Bi Kwon, Sung Yeoun Hwang, Sae Woong Kim
BACKGROUND: Hypercholesterolaemia (HC) is a major risk factor for ischemic heart disease and is also known to be a risk factor for erectile dysfunction (ED). ED caused by HC is thought to be related to HC-induced oxidative stress damage in the vascular endothelium and erectile tissue. KH-204 is an herbal formula with a strong antioxidant effect. We evaluated the effects of KH-204 on erectile function in a rat model of HC-induced ED. METHODS: Male Sprague-Dawley rats (6 weeks old) were divided into normal control, high-fat and cholesterol diet (HFC), and HFC with KH-204 treatment (HFC + KH) groups (n = 12 each)...
February 24, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28207427/progression-and-characterization-of-the-accelerated-atherosclerosis-in-iliac-artery-of-new-zealand-white-rabbits-effect-of-simvastatin
#8
Jitendra S Kanshana, Vivek Khanna, Vishal Singh, Manish Jain, Ankita Misra, Sachin Kumar, Mariya Farooqui, Manoj K Barthwal, Madhu Dikshit
OBJECTIVE: Although atherosclerosis is described in New Zealand White rabbit's iliac artery, yet details of time-dependent atherosclerosis progression are not well known. Further, a well characterized accelerated model of atherosclerosis is also required for the screening of candidate drugs to target specific steps of atherosclerosis development. The present study extensively characterizes the time-dependent plaque composition and functional responses of the atherosclerosis in rabbit iliac artery and its modification by simvastatin...
February 14, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28193797/mediterranean-diet-improves-high-density-lipoprotein-function-in-high-cardiovascular-risk-individuals-a-randomized-controlled-trial
#9
Álvaro Hernáez, Olga Castañer, Roberto Elosua, Xavier Pintó, Ramón Estruch, Jordi Salas-Salvadó, Dolores Corella, Fernando Arós, Lluis Serra-Majem, Miquel Fiol, Manuel Ortega-Calvo, Emilio Ros, Miguel Ángel Martínez-González, Rafael de la Torre, M Carmen López-Sabater, Montserrat Fitó
BACKGROUND: The biological functions of high-density lipoproteins (HDLs) contribute to explaining the cardioprotective role of the lipoprotein beyond quantitative HDL cholesterol levels. A few small-scale interventions with a single antioxidant have improved some HDL functions. However, to date, no long-term, large-scale, randomized controlled trial has been conducted to assess the effects of an antioxidant-rich dietary pattern (such as a traditional Mediterranean diet [TMD]) on HDL function in humans...
February 14, 2017: Circulation
https://www.readbyqxmd.com/read/28188215/cystathionine-gamma-lyase-protects-vascular-endothelium-a-role-for-inhibition-of-histone-deacetylase-6
#10
Thorsten Martin Leucker, Yohei Nomura, Jae Hyung Kim, Anil Bhatta, Victor Wang, Andrea Wecker, Sandeep S Jandu, Lakshmi Santhanam, Dan E Berkowitz, Lewis Romer, Deepesh Pandey
Endothelial cystathionine -lyase (CSE) contributes to cardiovascular homeostasis, mainly through production of hydrogen sulfide. However, the molecular mechanisms that control CSE gene expression in endothelium during cardiovascular diseases are unclear. The aim of the current study is to determine the role of specific histone deacetylases (HDAC) in the regulation of endothelial CSE. Reduced CSE mRNA expression and protein abundance were observed in human aortic endothelial cells (HAEC) exposed to OxLDL and in aortas from atherogenic ApoE-/- mice fed a high-fat diet as compared with controls...
February 10, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28181559/sirtuin1-protects-endothelial-caveolin-1-expression-and-preserves-endothelial-function-via-suppressing-mir-204-and-endoplasmic-reticulum-stress
#11
M Kassan, A Vikram, Y R Kim, Q Li, A Kassan, H H Patel, S Kumar, M Gabani, J Liu, J S Jacobs, K Irani
Sirtuin1 (Sirt1) is a class III histone deacetylase that regulates a variety of physiological processes, including endothelial function. Caveolin1 (Cav1) is also an important determinant of endothelial function. We asked if Sirt1 governs endothelial Cav1 and endothelial function by regulating miR-204 expression and endoplasmic reticulum (ER) stress. Knockdown of Sirt1 in endothelial cells, and in vivo deletion of endothelial Sirt1, induced endothelial ER stress and miR-204 expression, reduced Cav1, and impaired endothelium-dependent vasorelaxation...
February 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28177697/dysfunction-of-endothelial-progenitor-cells-in-hyperlipidemic-rats-involves-the-increase-of-nadph-oxidase-derived-reactive-oxygen-species-production
#12
Ting-Bo Li, Jie-Jie Zhang, Bin Liu, Xiu-Ju Luo, Qi-Lin Ma, Jun Peng
NADPH oxidase (NOX) is a major source of reactive oxygen species (ROS) in the body and it plays a key role in mediation of oxidative injury in cardiovascular system. The purposes of this study are to evaluate the status of NOX in EPCs of hyperlipidemic rats and to determine whether NOX- derived ROS promotes the dysfunction of endothelial progenitor cells (EPCs). The rats were fed on high-fat diet for 8 weeks to establish a hyperlipidemic rat model, which showed the increased plasma lipids and the impaired functions of circulating EPCs (including the reduced abilities in migration and adhesion), accompanied by an increase in NOX activity and ROS production...
October 20, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28163022/preservation-of-vascular-ddah-activity-contributes-to-the-protection-of-captopril-against-endothelial-dysfunction-in-hyperlipidemic-rabbits
#13
Yuan Lin, Mei Feng, Chang-Wu Lu, Yan-Ping Lei, Zhi-Min He, Yan Xiong
Endothelial dysfunction plays a pivotal role in the pathogenesis of atherosclerosis. Endogenous inhibitor of nitric oxide synthase (NOS) asymmetric dimethylarginine (ADMA) has been recognized as an independent risk factor of endothelial dysfunction and the biomarker of atherosclerosis. This study was to investigate whether endogenous ADMA and its metabolic enzyme dimethylarginine dimethylaminohydrolase (DDAH) were involved in mechanisms of captopril protection against endothelial dysfunction in high fat diet feeding rabbits...
February 3, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28152406/anacetrapib-but-not-evacetrapib-impairs-endothelial-function-in-cetp-transgenic-mice-in-spite-of-marked-hdl-c-increase
#14
Branko Simic, Pavani Mocharla, Margot Crucet, Elena Osto, Adelheid Kratzer, Simona Stivala, Susan Kühnast, Thimoteus Speer, Petia Doycheva, Hans M Princen, Jose W van der Hoorn, J Wouter Jukema, Hector Giral, Anne Tailleux, Ulf Landmesser, Bart Staels, Thomas F Lüscher
BACKGROUND AND AIMS: High-density lipoprotein cholesterol (HDL-C) is inversely related to cardiovascular risk. HDL-C raising ester transfer protein (CETP) inhibitors, are novel therapeutics. We studied the effects of CETP inhibitors anacetrapib and evacetrapib on triglycerides, cholesterol and lipoproteins, cholesterol efflux, paraoxonase activity (PON-1), reactive oxygen species (ROS), and endothelial function in E3L and E3L.CETP mice. METHODS: Triglycerides and cholesterol were measured at weeks 5, 14 and 21 in E3L...
February 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28145471/synergistic-effects-of-metformin-with-liraglutide-against-endothelial-dysfunction-through-glp-1-receptor-and-pka-signalling-pathway
#15
Jing Ke, Ye Liu, Jin Yang, Ran Lu, Qing Tian, Wenfang Hou, Guang Wang, Rui Wei, Tianpei Hong
Metformin or glucagon-like peptide-1 (GLP-1) analogue liraglutide has cardiovascular benefits. However, it is not clear whether their combined treatment have additive or synergistic effects on the vasculature. In this study, human umbilical vein endothelial cells (HUVECs), exposed to palmitic acid (PA) to induce endothelial dysfunction, were incubated with metformin, liraglutide or their combination. High fat diet (HFD)-fed ApoE(-/-) mice were randomized into control, metformin, liraglutide, and combination treatment groups...
February 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28129470/the-water-channel-aqp1-is-expressed-in-human-atherosclerotic-vascular-lesions-and-aqp1-deficiency-augments-angiotensin-ii-induced-atherosclerosis-in-mice
#16
Pamela Wintmo, Søren H Johansen, Pernille B L Hansen, Jes S Lindholt, Sigitas Urbonavicius, Lars M Rasmussen, Peter Bie, Boye L Jensen, Jane Stubbe
AIM: The water channel aquaporin 1 (AQP1) promotes endothelial cell migration. It was hypothesized that AQP1 promotes neovascularization and growth of atherosclerotic plaques. METHODS: AQP1 immunoreactivity and protein abundance was examined in human and murine atherosclerotic lesions and aortic aneurysms. Apolipoprotein E (ApoE) knockout (-/-) and AQP1-/-ApoE-/- were developed and fed western diet (WD) for 8 and 16 weeks to accelerate the atherosclerosis process...
January 27, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28103886/t-cadherin-deficiency-increases-vascular-vulnerability-in-t2dm-through-impaired-no-bioactivity
#17
Han Wang, Ling Tao, Anastasia Ambrosio, Wenjun Yan, Ross Summer, Wayne Bond Lau, Yajing Wang, Xinliang Ma
BACKGROUND: Endothelial dysfunction plays a critical role in the development of type 2 diabetes (T2DM). T-cadherin (T-cad) has gained recognition as a regulator of endothelial cell (EC) function. The present study examined whether T-cad deficiency increases vascular vulnerability in T2DM. METHODS: Vascular segments were isolated from WT or T-cad knockout mice. Endothelial function, total NO accumulation, and the expression of T-cad related proteins were determined...
January 19, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28097087/identification-of-the-vascular-endothelial-growth-factor-signalling-pathway-by-quantitative-proteomic-analysis-of-rat-condylar-cartilage
#18
Liting Jiang, Yinyin Xie, Li Wei, Qi Zhou, Xing Shen, Xinquan Jiang, Yiming Gao
Angiogenesis mediated by vascular endothelial growth factor (VEGF) is known to play an important role in regulating cartilage remodelling and endochondral ossification. However, the details of how VEGF signalling mechanisms affect condyle remodelling in response to alterations in functional loading remains unclear. To explore this, eighty 16-day-old male SD rats were divided into two equal groups which were fed either a soft/powdery diet or a hard diet for 4 weeks; the stiffness of the diet results in alteration of mastication force and hence temporomandibular joint (TMJ) development...
January 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28096131/nutrition-micrornas-and-human-health
#19
REVIEW
Juan Cui, Beiyan Zhou, Sharon A Ross, Janos Zempleni
MicroRNAs (miRs) hybridize with complementary sequences in mRNA and silence genes by destabilizing mRNA or preventing translation of mRNA. Over 60% of human protein-coding genes are regulated by miRs, and 1881 high-confidence miRs are encoded in the human genome. Evidence suggests that miRs not only are synthesized endogenously, but also might be obtained from dietary sources, and that food compounds alter the expression of endogenous miR genes. The main food matrices for studies of biological activity of dietary miRs include plant foods and cow milk...
January 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28088517/osborne-mendel-rats-simultaneously-develop-cardiac-and-renal-dysfunction-left-atrial-thrombosis-peripheral-artery-occlusion-and-ascending-aortic-dissection
#20
Makoto Asahina, Hideki Matsumoto, Yoshitaka Yasuhara, Noriko Suzuki, Ritsuko Takami, Michiyasu Takeyama, Ryuichi Tozawa
Although chronic kidney disease (CKD) is strongly associated with onsets of cardiovascular disease (CVD), the pathogenic mechanism between these diseases has not been fully understood. To develop and validate new therapeutic strategies for this complication, appropriate experimental models that reflect the complexity of the underlying pathophysiology are needed. The Osborne-Mendel (OM) rat was identified as an atherosclerosis-prone and a premature-death rat strain among 16 inbred rat strains when fed high-cholesterol containing diet...
April 1, 2017: Biochemical and Biophysical Research Communications
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