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https://www.readbyqxmd.com/read/29350757/hepatoprotective-effects-of-sophoricoside-against-fructose-induced-liver-injury-via-regulating-lipid-metabolism-oxidation-and-inflammation-in-mice
#1
Wenfeng Li, Yalong Lu
The dried fruit of Sophora japonica L. is a traditional Chinese herb tea rich in sophoricoside that is an isoflavone glycoside. The aim of current study was to investigate the hepatic protective effect of sophoricoside in high fructose (HF) diet fed mice. Healthy male mice were fed 30% fructose water and treated 80 and 160 mg/kg·bw sophoricoside continuously for 8 wk. Our data showed that administration of sophoricoside at 80 and 160 mg/kg·bw observably decreased the body weight and liver weight in HF-fed mice...
January 19, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29349446/ameliorative-role-of-camel-whey-protein-and-rosuvastatin-on-induced-dyslipidemia-in-mice
#2
Nashwa Ahmed El-Shinnawy, Sahar Sobhy Abd Elhalem, Nawal Zakaria Haggag, Gamal Badr
The incidence of obesity is rapidly increasing throughout the world. Dyslipidemia is a major risk factor for a number of chronic diseases, including diabetes and cardiovascular diseases. This work presents a novel approach to study the activity of camel whey protein (WP) with antioxidant and anti-inflammatory properties as a cheap dietary protein substance extracted from camel milk to produce satiety and help in building muscles. Mice model suffering from dyslipidemia as a result of feeding on high fat-cholesterol diet for 8 weeks were administrated with either camel WP and/or rosuvastatin for 4 weeks...
January 19, 2018: Food & Function
https://www.readbyqxmd.com/read/29343081/atorvastatin-reduces-plasma-inflammatory-and-oxidant-biomarkers-in-patients-with-risk-of-atherosclerotic-cardiovascular-disease
#3
Fadia Mayyas, Duha Baydoun, Rasheed Ibdah, Khalid Ibrahim
BACKGROUND: Oxidative stress and inflammation are associated with endothelial injury and coronary artery disease. Inflammatory factors that promote oxidative damage include endothelin-1 (ET-1), myeloperoxidase (MPO), and C-reactive protein (CRP). Current guidelines recommend the use of statins in patients with risk of atherosclerotic cardiovascular disease (ASCVD). AIM: To assess the impact of atorvastatin on plasma inflammatory and oxidant biomarkers in patients with moderate to very high risk of ASCVD...
January 1, 2018: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29335450/copper-sulfide-nanoparticles-as-a-photothermal-switch-for-trpv1-signaling-to-attenuate-atherosclerosis
#4
Wen Gao, Yuhui Sun, Michelle Cai, Yujie Zhao, Wenhua Cao, Zhenhua Liu, Guanwei Cui, Bo Tang
Atherosclerosis is characterized by the accumulation of lipids within the arterial wall. Although activation of TRPV1 cation channels by capsaicin may reduce lipid storage and the formation of atherosclerotic lesions, a clinical use for capsaicin has been limited by its chronic toxicity. Here we show that coupling of copper sulfide (CuS) nanoparticles to antibodies targeting TRPV1 act as a photothermal switch for TRPV1 signaling in vascular smooth muscle cells (VSMCs) using near-infrared light. Upon irradiation, local increases of temperature open thermo-sensitive TRPV1 channels and cause Ca2+ influx...
January 15, 2018: Nature Communications
https://www.readbyqxmd.com/read/29335039/replacing-carbohydrate-during-a-glucose-challenge-with-the-egg-white-portion-or-whole-eggs-protects-against-postprandial-impairments-in-vascular-endothelial-function-in-prediabetic-men-by-limiting-increases-in-glycaemia-and-lipid-peroxidation
#5
Joshua D McDonald, Chureeporn Chitchumroonchokchai, Jinhui Li, Eunice Mah, Allison N Labyk, Elizabeth J Reverri, Kevin D Ballard, Jeff S Volek, Richard S Bruno
Eggs attenuate postprandial hyperglycaemia (PPH), which transiently impairs vascular endothelial function (VEF). We hypothesised that co-ingestion of a glucose challenge with egg-based meals would protect against glucose-induced impairments in VEF by attenuating PPH and oxidative stress. A randomised, cross-over study was conducted in prediabetic men (n 20) who ingested isoenegertic meals (1674 kJ (400 kcal)) containing 100 g glucose (GLU), or 75 g glucose with 1·5 whole eggs (EGG), seven egg whites (WHITE) or two egg yolks (YOLK)...
January 16, 2018: British Journal of Nutrition
https://www.readbyqxmd.com/read/29334762/altered-redox-state-modulates-endothelial-kca2-3-and-kca3-1-levels-in-normal-pregnancy-and-preeclampsia
#6
Shinkyu Choi, Ji Aee Kim, Hai-Yan Li, Sae-Jin Lee, Ye Seon Seok, Tae Hun Kim, Ki-Hwan Han, Mi Hye Park, Geum Joon Cho, Suk Hyo Suh
AIMS: Altered redox state has been related to the development of normal pregnancy (NP) and preeclampsia (PE). Endothelial KCa2.3 and KCa3.1 (KCas) play an important role in vasodilation, and KCas levels are affected by oxidative stress. We investigated the mechanisms of oxidative stress-mediated KCas expression modulation during NP and PE. RESULTS: Human uterine microvascular endothelial cells were incubated in serum from normal non-pregnant women (n=13) and women with NP (n=24) or PE (n=15), or in VEGF, oxidized low-density lipoprotein (ox-LDL), progesterone, or estradiol-17-containing medium for 24 hours...
January 15, 2018: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29331380/eicosapentaenoic-acid-inhibits-oxidation-of-high-density-lipoprotein-particles-in-a-manner-distinct-from-docosahexaenoic-acid
#7
Samuel C R Sherratt, R Preston Mason
The omega-3 fatty acid eicosapentaenoic acid (EPA) reduces oxidation of ApoB-containing particles in vitro and in patients with hypertriglyceridemia. EPA may produce these effects through a potent antioxidant mechanism, which may facilitate LDL clearance and slow plaque progression. We hypothesize that EPA antioxidant effects may extend to ApoA-containing particles like HDL, potentially preserving certain atheroprotective functions. HDL was isolated from human plasma and incubated at 37 °C in the absence (vehicle) or presence of EPA and/or DHA; 5...
January 10, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29330254/increased-levels-of-lectin-like-oxidized-low-density-lipoprotein-receptor-1-in-ischemic-stroke-and-transient-ischemic-attack
#8
Tonje Skarpengland, Mona Skjelland, Xiang Yi Kong, Karolina Skagen, Sverre Holm, Kari Otterdal, Christen P Dahl, Kirsten Krohg-Sørensen, Ellen L Sagen, Vigdis Bjerkeli, Anne Hege Aamodt, Azhar Abbas, Ida Gregersen, Pål Aukrust, Bente Halvorsen, Tuva B Dahl
BACKGROUND: Soluble lectin-like oxidized low-density lipoprotein receptor-1 (sLOX-1) has been shown to be increased in patients with acute ischemic stroke. Here, we evaluated plasma sLOX-1 levels and vascular carotid plaque LOX-1 (ie, OLR1) gene expression in patients with ischemic stroke and transient ischemic attack (TIA) with particular focus on their relation to time since symptom onset. METHODS AND RESULTS: Plasma sLOX-1 (n=232) and carotid plaque OLR1 gene expression (n=146) were evaluated in patients who were referred to evaluation for carotid endarterectomy, as well as in healthy control plasma (n=81)...
January 12, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29329335/immunization-with-gingipain-a-hemagglutinin-domain-of-porphyromonas-gingivalis-induces-igm-antibodies-binding-to-malondialdehyde-acetaldehyde-modified-low-density-lipoprotein
#9
Mikael Kyrklund, Outi Kummu, Jari Kankaanpää, Ramin Akhi, Antti Nissinen, S Pauliina Turunen, Pirkko Pussinen, Chunguang Wang, Sohvi Hörkkö
Treatment of periodontitis has beneficial effects on systemic inflammation markers that relate to progression of atherosclerosis. We aimed to investigate whether immunization with A hemagglutinin domain (Rgp44) of Porphyromonas gingivalis (Pg), a major etiologic agent of periodontitis, would lead to an antibody response cross-reacting with oxidized low-density lipoprotein (OxLDL) and how it would affect the progression of atherosclerosis in low-density lipoprotein receptor-deficient (LDLR-/-) mice. The data revealed a prominent IgM but not IgG response to malondialdehyde-acetaldehyde modified LDL (MAA-LDL) after Rgp44 and Pg immunizations, implying that Rgp44/Pg and MAA adducts may share cross-reactive epitopes that prompt IgM antibody production and consequently confer atheroprotection...
2018: PloS One
https://www.readbyqxmd.com/read/29328911/western-diet-triggers-nlrp3-dependent-innate-immune-reprogramming
#10
Anette Christ, Patrick Günther, Mario A R Lauterbach, Peter Duewell, Debjani Biswas, Karin Pelka, Claus J Scholz, Marije Oosting, Kristian Haendler, Kevin Baßler, Kathrin Klee, Jonas Schulte-Schrepping, Thomas Ulas, Simone J C F M Moorlag, Vinod Kumar, Min Hi Park, Leo A B Joosten, Laszlo A Groh, Niels P Riksen, Terje Espevik, Andreas Schlitzer, Yang Li, Michael L Fitzgerald, Mihai G Netea, Joachim L Schultze, Eicke Latz
Long-term epigenetic reprogramming of innate immune cells in response to microbes, also termed "trained immunity," causes prolonged altered cellular functionality to protect from secondary infections. Here, we investigated whether sterile triggers of inflammation induce trained immunity and thereby influence innate immune responses. Western diet (WD) feeding of Ldlr-/- mice induced systemic inflammation, which was undetectable in serum soon after mice were shifted back to a chow diet (CD). In contrast, myeloid cell responses toward innate stimuli remained broadly augmented...
January 11, 2018: Cell
https://www.readbyqxmd.com/read/29328492/exosomes-derived-from-oxidized-ldl-stimulated-macrophages-attenuate-the-growth-and-tube-formation-of-endothelial-cells
#11
Chaoyang Huang, Yuan Huang, Yijiang Zhou, Wencheng Nie, Xiangyuan Pu, Xiaolei Xu, Jianhua Zhu
Oxidized low-density lipoprotein (oxLDL) has a critical role in the development of atherosclerosis. The participation of oxLDL‑stimulated macrophages has been well‑established in atherosclerosis, however the underlying mechanisms are unclear. Macrophage‑derived exosomes are actively released and are involved in numerous physiological and pathological processes. However, the function of exosomes secreted by oxLDL‑stimulated macrophages in atherosclerosis remains unknown. Exosomes from oxLDL‑treated macrophages and controls were co‑cultured with endothelial cells and the exosomes were taken up by endocytosis...
January 5, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29328474/inhibition-of-mir%C3%A2-34a-prevents-endothelial-cell-apoptosis-by-directly-targeting-hdac1-in-the-setting-of-atherosclerosis
#12
Yangwei Li, Kang Zhang, Wei Mao
Despite recent medical advances, atherosclerosis is a global burden accounting for numerous mortalities and hospital admissions. MicroRNAs (miRNAs/miRs) regulate cardiovascular biology and disease, but the role of microRNA‑34a in atherosclerosis remains unclear. In the present study, it was demonstrated that miR‑34a was highly expressed in atherosclerotic lesions and oxidized low‑density lipoprotein (Ox‑LDL)‑treated human aortic endothelial cells (HAECs) (atherosclerotic cell model) using reverse transcription‑quantitative polymerase chain reaction...
January 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29325301/-role-of-cd36-in-nonalcoholic-fatty-liver-disease
#13
Z Zhan, H Ren, M L Peng
Nonalcoholic fatty liver disease (NAFLD) includes nonalcoholic simple fatty liver, nonalcoholic steatohepatitis, liver cirrhosis, and liver cancer and is the most common liver disease in the world. The complex pathogenesis of NAFLD is a major concern among researchers. CD36 is a transmembrane glycoprotein that takes up fatty acid and binds to oxidized low-density lipoprotein in the liver, and therefore, it is involved in the development and progression of NAFLD. With reference to the latest research findings, this article reviews the association between CD36 and NAFLD and the role of CD36...
December 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/29324056/cardiopulmonary-effects-induced-by-occupational-exposure-to-titanium-dioxide-nanoparticles
#14
Lin Zhao, Yifang Zhu, Zhangjian Chen, Huadong Xu, Jingwen Zhou, Shichuan Tang, Zhizhen Xu, Fanling Kong, Xinwei Li, Yifei Zhang, Xianzuo Li, Ji Zhang, Guang Jia
Although some toxicological studies have reported that exposure to titanium dioxide nanoparticles (nano-TiO2) may elicit adverse cardiopulmonary effects, related data collected from human are currently limited. The purpose of this study is to explore cardiopulmonary effects among workers who were exposed to nano-TiO2 and to identify biomarkers associated with exposure. A cross-sectional study was conducted in a nano-TiO2 manufacturing plant in eastern China. Exposure assessment and characterization of TiO2 particles were performed in a packaging workshop...
January 11, 2018: Nanotoxicology
https://www.readbyqxmd.com/read/29323716/oxidative-burden-in-familial-hypercholesterolemia
#15
REVIEW
Hamid Mollazadeh, Federico Carbone, Fabrizio Montecucco, Matteo Pirro, Amirhossein Sahebkar
Familial hypercholesterolemia (FH) is a genetic disorder characterized by high serum levels of low-density lipoprotein cholesterol (LDL-c). FH is characterized by accelerated development of atherosclerosis and represents the most frequent hereditary cause of premature coronary heart disease. Mutations of the LDL receptor gene are the genetic signature of FH, resulting in abnormal levels of circulating LDLs. Moreover, FH promotes the generation of reactive oxygen species (ROS) which is another key mechanism involved in atherosclerosis development and progression...
January 11, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29323707/ox-ldl-induces-endothelial-cell-apoptosis-and-macrophage-migration-by-regulating-caveolin-1-phosphorylation
#16
Fei Lin, Likai Pei, Qingbin Zhang, Weizhong Han, Shiliang Jiang, Yanliang Lin, Bo Dong, Lianqun Cui, Min Li
Oxidative low-density lipoprotein (ox-LDL) is a risk factor for atherosclerosis. Ox-LDL leads to endothelial injury in the initial stage of atherosclerosis. In this study, we investigated the role of ox-LDL in endothelial injury and macrophage recruitment. We demonstrated that ox-LDL promoted a dose-dependent phosphorylation of caveolin-1 in human umbilical vein endothelial cells. Phosphorylated caveolin-1 increased ox-LDL uptake. Intracellular accumulation of ox-LDL induced NF-κB p65 phosphorylation, promoted HMGB1 translocation from nucleus to cytoplasm and cytochrome C release from mitochondria to cytoplasm, and activated caspase 3, resulting in cell apoptosis...
January 11, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29322359/expression-profiles-of-micrornas-in-oxidized-low-density-lipoprotein-stimulated-raw-264-7-cells
#17
Xiaokai Li, Siyuan Feng, Yi Luo, Keren Long, Zhenghao Lin, Jideng Ma, Anan Jiang, Long Jin, Qianzi Tang, Mingzhou Li, Xun Wang
Macrophage-derived foam cells were one of the hallmarks of atherosclerosis, and microRNAs played an important role in the formation of foam cells. In order to explore the roles of miRNA in the formation of foam cells, we investigated miRNA expression profiles in foam cells through high-throughput sequencing technology. A total of 84 miRNAs were differentially expressed between RAW 264.7 macrophages and foam cells induced by ox-LDL. Thirty miRNAs were upregulated and 54 miRNAs were downregulated. GO terms and KEGG pathways analysis revealed that the target genes of most of DE miRNAs were mainly enriched in "cell differentiation," "endocytosis," "MAPK signaling pathway," and "FoxO signaling pathway...
January 10, 2018: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/29318986/oxidative-status-and-lipid-profile-among-dogs-at-different-stages-of-visceral-leishmaniasis
#18
Mehmet Gültekin, Serdar Paşa, Kerem Ural, Canberk Balıkçı, Gamze Sevri Ekren Aşıcı, Gamze Gültekin
OBJECTIVE: The purpose of the study was to investigate the oxidative status and lipid profile among dogs at different stages of visceral leishmaniasis (VL). METHODS: Dogs with VL were divided into four groups according to the classification reported by the Leishvet group: stage I (n=9), stage II (n=11), stage III (n=6), and stage IV (n=6); these dogs were compared to healthy control dogs (n=14). The lipid profile [high-density lipoprotein (HDL), low-density lipoprotein (LDL), cholesterol, and triglyceride levels) and oxidative status [total antioxidant capacity (TAC), total oxidant status (TOS), and paraoxonase-1 (PON-1) activity] were evaluated...
December 2017: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/29318368/increased-levels-of-advanced-glycation-end-products-positively-correlate-with-iron-overload-and-oxidative-stress-markers-in-patients-with-%C3%AE-thalassemia-major
#19
Maryam Sadat Mirlohi, Hamid Yaghooti, Saeed Shirali, Ali Aminasnafi, Samaneh Olapour
The impaired biosynthesis of the β-globin chain in β-thalassemia leads to the accumulation of unpaired alpha globin chains, failure in hemoglobin formation, and iron overload due to frequent blood transfusion. Iron excess causes oxidative stress and massive tissue injuries. Advanced glycation end products (AGEs) are harmful agents, and their production accelerates in oxidative conditions. This study was conducted on 45 patients with major β-thalassemia who received frequent blood transfusions and chelation therapy and were compared to 40 healthy subjects...
January 9, 2018: Annals of Hematology
https://www.readbyqxmd.com/read/29316215/oxidized-low-density-lipoprotein-in-inflammation-driven-thrombosis
#20
Georg Obermayer, Taras Afonyushkin, Christoph J Binder
Thrombosis is the defining feature of the most prevalent causes of cardiovascular mortality, such as myocardial infarction, stroke and pulmonary artery embolism. While platelet activation as well as activation of the plasmatic coagulation system are the hallmarks of thrombus formation, inflammatory processes and the cellular responses involved are increasingly recognized as critical modulators of thrombosis. In the context of many chronic inflammatory diseases that are associated with a high thrombotic risk, oxidized lipoproteins represent a prominent sterile trigger of inflammation...
January 6, 2018: Journal of Thrombosis and Haemostasis: JTH
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