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https://www.readbyqxmd.com/read/28535009/microrna-let-7g-alleviates-atherosclerosis-via-the-targeting-of-lox-1-in-vitro-and-in-vivo
#1
Mingxin Liu, Guizhou Tao, Qifeng Liu, Kun Liu, Xinchun Yang
Atherosclerosis is a chronic arterial disease and the leading cause of stroke and myocardial infarction. Micro-RNAs (miRNAs or miRs) have been reported to act as essential modulators during the progression of atherosclerosis. Although miR-let-7g has been demonstrated to contribute to maintaining endothelial function and vascular homeostasis, it is not known whether miR-let-7g exerts a therapeutic effect on experimental atherosclerosis. The aim of this study was to investigate the effects of miR-let-7g on atherosclerosis in vivo and in vitro and to explore its underlying mechanisms...
May 18, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28534098/effect-of-the-zinc-oxide-nanoparticles-and-thiamine-for-the-management-of-diabetes-in-alloxan-induced-mice-a-stereological-and-biochemical-study
#2
Abdolrahman Amiri, Rahmat Allah Fatahian Dehkordi, Mohamad Saeed Heidarnejad, Mohsen Jafarian Dehkordi
This research was carried out to evaluate the antidiabetic effects of zinc oxide nanoparticles (ZnO NPs) and thiamine following experimental diabetes. Fifty-six 6-week-old female mice were used and divided into seven groups of eight animals. Diabetes was induced in fasted mice by using intraperitoneal (IP) injection of alloxan (180 mg/kg). Groups included (I) non-diabetic control, (II) thiamine (30 mg/l, IP), (III) alloxan-induced diabetic mice, (IV) diabetes + ZnO NPs (0.1 mg/kg IP), (V) diabetes + ZnO NPs (0...
May 22, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28533932/metabolic-parameters-and-responsiveness-of-isolated-iliac-artery-in-ldlr-mice-role-of-aerobic-exercise-training
#3
Nádia F Garcia, Amanda Cs Sponton, Maria A Delbin, Juliana M Parente, Michele M Castro, Angelina Zanesco, Camila de Moraes
Physical inactivity and dyslipidemia are considered risk factors for cardiovascular diseases. There are few studies evaluating the effects of physical exercise in small-caliber artery in a model that mimics familial hypercholesterolemia. The aim of this study was to examine the effect of exercise training, at moderate intensity, on metabolic parameters and iliac artery responsiveness in LDL(-/-) mice. Sedentary (SD) and trained (TR) mice performed AET (5 days/week, 60 minutes/day at 60-70% of maximum speed) during 8 weeks...
2017: American Journal of Cardiovascular Disease
https://www.readbyqxmd.com/read/28533928/leucine-nicotinic-acid-synergy-stimulates-ampk-sirt1-signaling-and-regulates-lipid-metabolism-and-lifespan-in-caenorhabditis-elegans-and-hyperlipidemia-and-atherosclerosis-in-mice
#4
Antje Bruckbauer, Jheelam Banerjee, Quiang Cao, Xin Cui, Jia Jing, Lin Zha, Fenfen Li, Bingzhong Xue, Hang Shi, Michael B Zemel
BACKGROUND/AIMS: Nicotinic acid (NA), a lipid-lowering drug, serves as a source of NAD(+), the cofactor for Sirt1. Leucine (Leu) stimulates the AMPK/Sirt1 axis and amplifies the effects of other AMPK/Sirt1 activating compounds. Therefore, we tested the interactive effects of leucine and low dose NA on AMPK/Sirt1 signaling and downstream effects of lipid metabolism in cell culture, C. elegans and mice. METHODS: LDL-receptor knockout mice were fed an atherogenic Western diet supplemented with leucine (24 g/kg diet) and sub-therapeutic NA combinations (50 mg/kg diet and 250 mg/kg diet) or low therapeutic NA (1000 mg/kg diet) for 8 weeks to evaluate markers of hyperlipidemia and atherosclerosis...
2017: American Journal of Cardiovascular Disease
https://www.readbyqxmd.com/read/28533488/tim-3-inhibits-low-density-lipoprotein-induced-atherogenic-responses-in-human-umbilical-vein-endothelial-cells
#5
Ming-Ke Qiu, Song-Cun Wang, Yong Tang, Chang Pan, Yang Wang, Shu-Qing Wang, Zhi-Wei Quan, Jing-Min Ou
Endothelial injury and dysfunction followed by endothelial activation and inflammatory cell recruitment are factors contributing to the initiation and progression of atherosclerosis. Oxidized low-density lipoprotein (ox-LDL) promotes inflammation during atherogenesis and lipid deposition in the arterial wall. We observed that stimulation of human umbilical vein endothelial cells (HUVECs) with ox-LDL activated pro-inflammatory cytokine production and apoptosis, inhibited cell migration, and upregulated T-cell immunoglobulin and mucin domain 3 (Tim-3) expression...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28529180/structure-function-relationships-in-reconstituted-hdl-focus-on-antioxidative-activity-and-cholesterol-efflux-capacity
#6
Alexandre M O Cukier, Patrice Therond, Svetlana A Didichenko, Isabelle Guillas-Baudouin, M John Chapman, Samuel D Wright, Anatol Kontush
AIMS: High-density lipoprotein (HDL) contains multiple components that endow it with biological activities. Apolipoprotein A-I (apoA-I) and surface phospholipids contribute to these activities; however, structure-function relationships in HDL particles remain incompletely characterized. METHODS: Reconstituted HDLs (rHDLs) were prepared from apoA-I and soy phosphatidylcholine (PC) at molar ratios of 1:50, 1:100 and 1:150. Oxidative status of apoA-I was varied using controlled oxidation of Met112 residue...
May 18, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28528433/hydrolysis-of-phosphatidylcholine-isoprostanes-ptdcho-ip-by-peripheral-human-group-iia-v-and-x-secretory-phospholipases-a2-spla2
#7
Arnis Kuksis, Waldemar Pruzanski
Biologically active F- and E/D-type-prostane ring isomers (F2-IP and E2/D2-IP, respectively) are produced in situ by non-enzymatic peroxidation of arachidonic acid esterified to GroPCho (PtdCho-IP) and are universally distributed in tissue lipoproteins and cell membranes. Previous work has shown that platelet-activating factor acetylhydrolases (PAF-AH) are the main endogenous PLA2 involved in degradation of PtdCho-IP. The present study shows that the PtdCho-IP are also subject to hydrolysis by group IIA, V and X secretory PLA2, which also have a wide peripheral tissue distribution...
May 20, 2017: Lipids
https://www.readbyqxmd.com/read/28528308/hyperlipidemia-is-involved-in-apoptosis-in-rat-submandibular-glands
#8
Koichiro Irie, Takaaki Tomofuji, Daisuke Ekuni, Tetsuji Azuma, Toshiki Yoneda, Yoshihiro Shimazaki, Manabu Morita
OBJECTIVE: The aim of the present study was to investigate the effects of hyperlipidemia on histological changes and apoptosis in submandibular glands using apolipoprotein E (apoE)-deficient rats. DESIGN: Histopathological findings related to induced apoptosis in the submandibular glands were compared between apoE-deficient rats (n=6; male; age, 16 weeks) and the corresponding wild-type rats (n=6). RESULTS: ApoE-deficient rats showed significantly higher plasma levels of oxidized low-density lipoprotein (LDL), total cholesterol, very LDL and LDL, and lower plasma levels of high-density lipoprotein when compared to control rats (P<0...
May 17, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28526381/medium-term-effect-of-sublingual-l-glutathione-supplementation-on-flow-mediated-dilation-in-subjects-with-cardiovascular-risk-factors
#9
Jonica Campolo, Stefano Bernardi, Lorena Cozzi, Silvia Rocchiccioli, Cinzia Dellanoce, Antonella Cecchettini, Annamaria Tonini, Marina Parolini, Benedetta De Chiara, Gianpaolo Micheloni, Gualtiero Pelosi, Claudio Passino, Cristina Giannattasio, Oberdan Parodi
OBJECTIVE: Supplementation of glutathione (GSH) may be a positive strategy to improve the endogenous antioxidant defense required to counteract many acute and chronic diseases. However, the efficacy of GSH treatment seems to be closely related to type of administration, degree of absorption, and increase of its concentrations. The aim of this study was to test a new sublingual formulation of L-GSH, which enters directly the systemic circulation, to assess its efficacy on circulating biochemical markers of hepatic metabolism, lipid profile, and oxidative stress and on peripheral vascular function compared with placebo in patients with cardiovascular risk factors (CVRF)...
June 2017: Nutrition
https://www.readbyqxmd.com/read/28522412/athero-inflammatory-nanotherapeutics-ferulic-acid-based-poly-anhydride-ester-nanoparticles-attenuate-foam-cell-formation-by-regulating-macrophage-lipogenesis-and-reactive-oxygen-species-generation
#10
Rebecca A Chmielowski, Dalia S Abdelhamid, Jonathan J Faig, Latrisha K Petersen, Carol R Gardner, Kathryn E Uhrich, Laurie B Joseph, Prabhas V Moghe
Enhanced bioactive anti-oxidant formulations are critical for treatment of inflammatory diseases, such as atherosclerosis. A hallmark of early atherosclerosis is the uptake of oxidized low density lipoprotein (oxLDL) by macrophages, which results in foam cell and plaque formation in the arterial wall. The hypolipidemic, anti-inflammatory, and antioxidative properties of polyphenol compounds make them attractive targets for treatment of atherosclerosis. However, high concentrations of antioxidants can reverse their anti-atheroprotective properties and cause oxidative stress within the artery...
May 15, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28516793/red-or-white-wine-consumption-effect-on-atherosclerosis-in-healthy-individuals-in-vino-veritas-study
#11
M Taborsky, P Ostadal, T Adam, O Moravec, V Gloger, A Schee, T Skala
AIMS: Consumption of wine has a protective effect on cardiovascular diseases. Data from prospective, long-term, head-to-head comparisons of effects of different drinks on markers of atherosclerosis have been insufficient. METHODS AND RESULTS: In Vino Veritas (IVV) study is long-term, prospective, multi-centre, randomized trial comparing effects of red and white wine on atherosclerosis. 157 healthy subjects were randomized to white or red wine consumption for one year...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28516789/protective-effect-of-pravastatin-on-doxorubicin-induced-hepatotoxicity
#12
E Mansouri, A Jangaran, A Ashtari
OBJECTIVE: The present study was designed to investigate the possible protection of pravastatin against hepatic oxidative stress and dysfunctions induced by doxorubicin in rats. BACKGROUND: Statins have beneficial effects on oxidative stress and inflammation. METHODS: Male Sprague-Dawley rats were divided into four groups. Control group (received saline orally), Group 2 received pravastatin (20 mg/kg, i.p. for 15 days), Group 3 received single dose doxorubicin (15 mg/kg, i...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28513775/adiponectin-inhibits-oxidization-induced-differentiation-of-t-helper-cells-through-inhibiting-costimulatory-cd40-and-cd80
#13
Y Xiao, T Deng, Z Shang, D Wang
Adiponectin is a multifunctional adipokine that has several oligomeric forms in the blood stream, which broadly regulates innate and acquired immunity. Therefore, in this study, we aimed to observe the differentiation of T helper (Th) cells and expression of costimulatory signaling molecules affected by adiponectin. The mRNA and protein expression levels of adiponectin and its receptors in oxidized low density lipoprotein cholesterol-treated endothelial cells were assayed by real time PCR and immunofluorescence...
May 15, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28511903/novel-role-of-the-nutraceutical-bioactive-compound-berberine-in-lectin-like-oxldl-receptor-1-mediated-endothelial-dysfunction-in-comparison-to-lovastatin
#14
C Caliceti, P Rizzo, R Ferrari, F Fortini, G Aquila, E Leoncini, L Zambonin, B Rizzo, D Calabria, P Simoni, M Mirasoli, M Guardigli, S Hrelia, A Roda, A F G Cicero
BACKGROUND AND AIMS: Oxidized LDL (oxLDL) or pro-inflammatory stimuli lead to increased oxidative stress linked to endothelial dysfunction and atherosclerosis. The oxLDL receptor-1 (LOX1) is elevated within atheromas and cholesterol-lowering statins inhibit LOX1 expression. Berberine (BBR), an alkaloid extracted from plants of gender Berberis, has lipid-lowering and anti-inflammatory activity. However, its role in regulating LOX1-mediated signaling is still unknown. The aim of this study was to investigate the effect of BBR on oxLDL- and TNFα-induced endothelial dysfunction in human umbilical vein endothelial cells (HUVECs) and to compare it with that of lovastatin (LOVA)...
April 19, 2017: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/28511654/oxidative-profiles-of-ldl-and-hdl-isolated-from-women-with-preeclampsia
#15
G León-Reyes, R F Maida-Claros, A X Urrutia-Medina, E Jorge-Galarza, A M Guzmán-Grenfell, S Fuentes-García, R Medina-Navarro, M A Moreno-Eutimio, J L Muñoz-Sánchez, J J Hicks, Y D Torres-Ramos
BACKGROUND: Oxidative stress causes biochemical changes in lipids and proteins; these changes can induce damage to the vascular endothelium and create maternal complications that are characteristic of preeclampsia. In this study, we evaluated the oxidative profile of lipoproteins isolated from women with preeclampsia. METHODS: Thirty women diagnosed with preeclampsia and thirty women without preeclampsia were included in the study. Lipid-damage biomarkers, including conjugated dienes, lipohydroperoxides and malondialdehyde, were measured...
May 16, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28506805/hdl-abnormalities-in-familial-hypercholesterolemia-focus-on-biological-functions
#16
REVIEW
Shiva Ganjali, Amir Abbas Momtazi, Maciej Banach, Petri T Kovanen, Evan A Stein, Amirhossein Sahebkar
Although a selective strong elevation in the plasma level of low-density lipoprotein (LDL) cholesterol is the hallmark of familial hypercholesterolemia (FH), also other plasma lipoprotein and lipid subspecies are changed in these patients. Several studies in FH patients have pointed to the qualitative abnormalities of high-density lipoprotein (HDL) particles, including their triglyceride and sphingomyelin enrichment, reduced capacity to promote cholesterol efflux from macrophages, impaired anti-inflammatory and anti-oxidant activities, and reduced plasma levels of miRs regulating HDL-dependent cholesterol efflux from macrophage foam cells, typical of atherosclerotic lesions...
May 12, 2017: Progress in Lipid Research
https://www.readbyqxmd.com/read/28503322/changes-in-oxidized-ldl-during-a-half-marathon-in-athletes-with-spinal-cord-injuries
#17
Toshihito Mitsui, Tomoyuki Ito, Yusuke Sasaki, Takashi Kawasaki, Takeshi Nakamura, Yukihide Nishimura, Tatsuru Ibusuki, Yukiharu Higuchi, Sayoko Hosoe, Fumiaki Ito, Fumihiro Tajima
INTRODUCTION: We reported previously that exercise significantly increases plasma adrenaline and oxidized low-density lipoprotein (oxLDL) in healthy subjects but not in persons with spinal cord injury (SCI). Since oxLDL and adrenaline levels are associated with oxidant/antioxidant balance, and exercise training elicits production of reactive oxygen species, we elucidated the effects of exercise on adrenaline, oxidant/antioxidant balance and oxLDL in individuals with SCI. CASE PRESENTATION: Eight subjects with cervical spinal cord injury (CSCI) and nine subjects with lower lesion of SCI (lower SCI (LSCI)) participated in a wheelchair half marathon race, and blood samples were collected before (pre), immediately after (post) and 1 h after the race (post 1 h)...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28503188/impact-of-8-week-linoleic-acid-intake-in-soy-oil-on-lp-pla2-activity-in-healthy-adults
#18
Minkyung Kim, Minjoo Kim, Ayoung Lee, Hye Jin Yoo, Jung Soo Her, Sun Ha Jee, Jong Ho Lee
BACKGROUND: No intervention follow-up study has examined the association between plasma n-6 polyunsaturated fatty acids (PUFAs) and lipoprotein-associated phospholipase A2 (Lp-PLA2), which is a risk factor for cardiovascular disease (CVD). We aimed to determine whether the administration of linoleic acid (LA, 18:2n-6) in soy oil affected Lp-PLA2 activity in healthy adults. METHODS: Self-reported healthy participants (n = 150) were randomly assigned to three groups: a low LA group, in which 10 mL soy oil was replaced with one apple; a medium LA group, in which the typical food intake was maintained; and a high LA group, in which 1/3 cup of cooked refined rice was replaced with 9...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28500865/dihydromyricetin-ameliorates-atherosclerosis-in-ldl-receptor-deficient-mice
#19
Ting Ting Liu, Yi Zeng, Kun Tang, XueMeng Chen, Wei Zhang, Xiao Le Xu
BACKGROUND AND AIMS: Dihydromyricetin, the most abundant flavonoid in Ampelopsis grossedentata, exerts numerous pharmacological activities, including anti-inflammatory, antioxidant, hepatoprotective, and lipid regulatory activities; however, its protective effect against atherosclerosis remains poorly understood. The aim of the present study was to evaluate the effects of dihydromyricetin on high fat diet (HFD)-induced atherosclerosis using LDL receptor deficient (LDLr(-/-)) mice. METHODS: Blood samples were collected for determination of serum lipid profiles, oxidized LDL (ox-LDL) and pro-inflammatory cytokines...
May 5, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28500763/cross-talk-between-enzymes-matrix-metalloproteinsese-2-and-9-and-regulatory-t-cell-immunity-in-the-global-burden-of-atherosclerosis
#20
Andrica Lekic, Zdrinko Brekalo, Ante Kvesic, Miljenko Kovacevic, Zdenka Baricev-Novakovic, Ivana Sutic, Aleksandar Bulog, Ingrid Sutic, Valentino Pavisic, Ines Mrakovcic-Sutić
Changes in immune and inflammatory responses may play a crucial role in the development and progression of atherosclerosis, as an autoimmune, chronic and progressive inflammatory disease. Immunological activity and vascular inflammation during atherosclerosis can be modulated by autoimmune responses against self-antigens, according to changeable risk factors (cholesterol, oxidized low-density lipoprotein (ox-LDL) in the vascular wall, fatty acids, etc.) and accompanied by accumulation of leucocytes and proinflammatory cytokines, which stimulate the transcription of matrix-metalloproteinases (MMPs), whose concentration are increased in foam cell rich regions...
May 13, 2017: Scandinavian Journal of Immunology
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