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https://www.readbyqxmd.com/read/29081508/serum-oxldl-%C3%AE-2gpi-complex-reflects-metabolic-syndrome-and-inflammation-in-adipose-tissue-in-obese
#1
M Siklova, M Koc, L Rossmeislová, P Kraml
BACKGROUND/OBJECTIVES: OxLDL-β2GPI complex has been suggested to play a role in the development of atherosclerosis and other inflammatory diseases. The aim of this study was to investigate the possible association of circulating oxLDL-β2GPI with obesity-induced inflammatory state of adipose tissue and related comorbidities as metabolic syndrome development. SUBJECTS/METHODS: Two cohorts of subjects were examined in the study. Cohort I: 36 women with wide range of BMI (17-48 kg/m(2)) and metabolic status (with or without metabolic syndrome (MS); Cohort II: 20 obese women undergoing a dietary intervention consisting of 1 month very low-calorie diet, and 5 months of weight-stabilization period...
October 30, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29077566/relations-between-oxidized-low-density-lipoproteins-and-fat-soluble-vitamin-concentrations-in-obese-children-preliminary-study
#2
Joanna Gajewska, Jadwiga Ambroszkiewicz, Halina Weker, Magdalena Chełchowska
INTRODUCTION: Although lipid peroxidation products are formed during normal cell metabolism, they appear mostly in pathological conditions via producing an excess of free radicals that can react with unsaturated fatty acids, in particular low-density lipoprotein (LDL). The aim of this study was to investigate the relations between oxidized LDL (oxLDL), the fat-soluble vitamin status and the anthropometric parameters in prepubertal obese children. MATERIAL AND METHODS: Thirty-two obese (SDS-BMI >2) and 25 non-obese children (SDS-BMI <-1+1>) were included in the study...
2017: Developmental Period Medicine
https://www.readbyqxmd.com/read/29035447/porphyromonas-gingivalis-infection-accelerates-atherosclerosis-mediated-by-oxidative-stress-and-inflammatory-responses-in-apoe-mice
#3
Yan Xuan, Qiao Shi, Guo-Jing Liu, Qing-Xian Luan, Yu Cai
BACKGROUND: The periodontal pathogen Porphyromonas gingivalis (P. gingivalis) has been proven to accelerate the development of atherosclerosis in apolipoprotein E (ApoE)-deficient mice. In this study, we used an ApoE knockout (ApoE-/-) mouse model with chronic intravenous infection with P. gingivalis to investigate the possible mechanisms of P. gingivalis-induced atherosclerosis. METHODS: Eight-week-old ApoE-/- mice were randomly assigned to two groups: (a) ApoE-/- + PBS (n = 8); (b) ApoE-/- + P...
October 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28915447/oxidative-stress-induced-modulation-of-platelet-integrin-%C3%AE-2b%C3%AE-3-expression-and-shedding-may-predict-the-risk-of-major-bleeding-in-heart-failure-patients-supported-by-continuous-flow-left-ventricular-assist-devices
#4
Nandan K Mondal, Zengsheng Chen, Jaimin R Trivedi, Erik N Sorensen, Si M Pham, Mark S Slaughter, Bartley P Griffith, Zhongjun J Wu
INTRODUCTION: Oxidative stress and platelet integrin α2bβ3 plays important role in the process of hemostasis and thrombosis. We hypothesized that device-induced patient specific oxidative stress and integrin α2bβ3 shedding may be linked to major bleeding complication (MBC) in heart failure (HF) patients supported by continuous flow left ventricular assist devices (CF-LVADs). MATERIALS AND METHODS: We recruited 47patients implanted with CF-LVADs and 15 healthy volunteers...
September 8, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28797761/tail-vein-injection-of-mmldl-upregulates-mouse-mesenteric-artery-etb-receptors-via-activation-of-the-erk1-2-pathway
#5
Yang Liu, Xiao-Lan Chen, Cang-Bao Xu, Lei Cao, Jie Lin, Gen Chen, Jie Li
Minimally modified low density lipoprotein (mmLDL) is a risk factor for cardiovascular disease. This study investigated the effect of mmLDL on mouse mesenteric artery endothelin type B (ETB) receptors and its molecular mechanism. Mice were injected with normal saline (NS group), mmLDL in the tail vein (mmLDL group), or with both mmLDL and an intraperitoneal injection of the ERK1/2 pathway-specific inhibitor U0126 (mmLDL+U0126 group). The dose-response curve of mesenteric artery contraction induced by sarafotoxin 6c (S6c), the ETB receptor agonist, was measured using a sensitive myograph system...
September 2017: Vascular Pharmacology
https://www.readbyqxmd.com/read/28713935/curcumin-pretreatment-protects-against-pm2-5%C3%A2-induced-oxidized-low%C3%A2-density-lipoprotein%C3%A2-mediated-oxidative-stress-and-inflammation-in-human-microvascular-endothelial-cells
#6
Jun Shi, Huiping Deng, Min Zhang
A previous study demonstrated that particulate matter (≤2.5 µm in diameter; PM2.5) may promote atherosclerosis. However, the underlying mechanisms of PM2.5 in human microvascular endothelial cells (HMEC‑1) remain to be elucidated. It has been reported that inflammation and oxidative stress can be reduced by curcumin, and in the present study, the aim was to investigate the protective effects of curcumin on PM2.5‑induced oxidative stress and inflammatory response in HMEC‑1. HMEC‑1 were stimulated with curcumin and PM2...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28712390/-the-oxldl-%C3%AE-2gpi-%C3%AE-2gpi-ab-complex-promotes-the-migration-and-the-expression-of-inflammatory-cytokines-in-human-umbilical-vein-endothelial-cells
#7
Qianqian Cai, Hong Zhou, Guiting Zhang, Chao He, Xiaojie Zhu, Xiaoyan Wang, Hang Ouyang
Objective To study the effects of the complex of oxidized low density lipoprotein/β2-glycoprotein I/β2-glycoprotein I antibodies (oxLDL/β2GPI/β2GPI-Ab) on the migration of human umbilical vein endothelial cells (HUVECs) and the expression of inflammatory cytokines, and their underlying Toll-like receptor (TLR4) pathway. Methods HUVECs were treated with oxLDL, oxLDL/β2GPI complex, oxLDL/β2GPI-Ab complex, oxLDL/β2GPI/β2GPI-Ab complex, or lipopolysaccharide (LPS) for a period of time in their corresponding groups...
July 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28623707/the-role-of-pon-1-gr-il-18-and-oxldl-in-depression-with-and-without-posttraumatic-stress-disorder
#8
Ewa A Ogłodek
BACKGROUND: Both oxidative stress markers and inflammatory markers are important when diagnosing depression. Oxidative stress occurs due to an imbalance between free radical generation and antioxidant potential. Both adenosine triphosphate and reactive oxygen/nitrogen species are released during oxidative phosphorylation. When neuroinflammation and free radical production are increased, oxidative stress occurs and causes damage to all major cellular macromolecules. The aim of the study was to compare the concentrations of paraoxonase-1 (PON-1), glutathione reductase (GR), interleukin-18 (IL-18), and oxidized low-density lipoproteins (OxLDL) in depressed patients with and without posttraumatic stress disorder (PTSD), and PTSD alone...
March 27, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28546831/effect-of-variable-antidiabetic-treatments-strategy-on-oxidative-stress-markers-in-obese-patients-with-t2dm
#9
Abeer A ALrefai, Alsayed M Alsalamony, Sameer H Fatani, Hala F M Kamel
AIM: To evaluate the effect of different anti-diabetic treatment strategy on oxidative stress markers in patients with type 2 diabetes mellitus (T2DM). SUBJECT AND METHODS: A total of 93 patients with T2DM treated with metformin (G1 = 25), OHA (G2 = 22), OA and insulin (G3 = 26) and insulin alone (G4 = 20). In all patients, lipid profile and glycemic indices were assessed using routine laboratory tests. MDA and Oxidized LDL were assessed using commercially available ELISA kits...
2017: Diabetology & Metabolic Syndrome
https://www.readbyqxmd.com/read/28498386/atorvastatin-inhibits-cholesterol-induced-caspase-3-cleavage-through-down-regulation-of-p38-and-up-regulation-of-bcl-2-in-the-rat-carotid-artery
#10
Roshanak Bayatmakoo, Nadereh Rashtchizadeh, Parichehreh Yaghmaei, Mehdi Farhoudi, Pouran Karimi
AIM: Atherosclerotic lesions in the carotid arteries lead to a broad range of cerebrovascular disorders such as vascular dementia and ischaemic stroke. Recent studies have verified the beneficial role of atorvastatin (AV) in atherosclerosis. Despite a large body of studies, the mechanisms underlying this effect have not been completely explained. In this study, several experiments were performed on atherosclerotic rat models to investigate the anti-inflammatory and anti-apoptotic effect of AV in the carotid artery...
May 5, 2017: Cardiovascular Journal of Africa
https://www.readbyqxmd.com/read/28413519/amp-activated-protein-kinase-mediates-the-effects-of-lipoprotein-associated-phospholipase-a2-on-endothelial-dysfunction-in-atherosclerosis
#11
Li Yang, Hong-Liang Cong, Shu-Feng Wang, Ting Liu
The present study aimed to investigate the effects of lipoprotein-associated phospholipase A2 (Lp-PLA2) on endothelial dysfunction in an in vitro cell model of atherosclerosis, and to determine whether AMP-activated protein kinase (AMPK) mediates the effects of Lp-PLA2 on endothelial dysfunction. A total of 392 patients with coronary artery disease (CAD), including various sub-conditions, were recruited, and the plasma concentrations of Lp-PLA2 were evaluated. In addition, an in vitro model of atherosclerosis was established by exposing human umbilical vein endothelial cells (HUVECs) to oxidized low-density lipoprotein (oxLDL)...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28377266/the-lipid-moiety-7-ketocholesteryl-9-carboxynonanoate-mediates-binding-interaction-of-oxldl-to-lox-1-and-upregulates-abca1-expression-through-ppar%C3%AE
#12
Jingda Li, Zhilong Xiu, Renjun Wang, Chengjie Yu, Yan Chi, Jianzhong Qin, Changzhen Fu, Eiji Matsuura, Qingping Liu
AIM: Lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1), a specific membrane receptor for oxidized low-density lipoprotein (oxLDL), plays a crucial role in atherosclerosis progression. The aim of this study was to elucidate the role of 7-ketocholesteryl-9-carboxynonanoate (oxLig-1), a lipid component of oxLDL, in the binding of oxLDL to LOX-1 and to determine whether oxLig-1 binding to LOX-1 is involved in the upregulation of ABCA1 expression. MAIN METHODS: OxLig-1 binding to LOX-1 was analysed by AutoDock 4...
May 15, 2017: Life Sciences
https://www.readbyqxmd.com/read/28334721/microrna-9-inhibits-nlrp3-inflammasome-activation-in-human-atherosclerosis-inflammation-cell-models-through-the-jak1-stat-signaling-pathway
#13
Yue Wang, Zhihua Han, Yuqi Fan, Junfeng Zhang, Kan Chen, Lin Gao, Huasu Zeng, Jiatian Cao, Changqian Wang
BACKGROUND/AIMS: MicroRNA-9 (miR-9) is involved in inflammatory reaction in atherosclerosis; however, its function and regulatory mechanisms remain unclear. We aimed to uncover the exact roles of miR-9 and downstream signaling pathways using in vitro human atherosclerosis models. METHODS: We used oxidized low-density lipoprotein (oxLDL)-stimulated human THP-1 derived macrophages, oxLDL-stimulated human primary peripheral blood monocytes and lipopolysaccharides (LPS) or Alum-stimulated human THP-1 derived macrophages as in vitro atherosclerosis inflammation models...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28304296/pcsk9-promotes-oxldl-induced-pc12-cell-apoptosis-through-the-bcl-2-bax-caspase-9-3-signaling-pathway
#14
Lu-Shan Liu, Xue-Qin Bai, Ya Gao, Qi Wu, Zhong Ren, Qing Li, Li-Hong Pan, Ni-Ya He, Juan Peng, Zhi-Han Tang
BACKGROUND: Hyperlipidemia is a risk factor for neurodegenerative diseases. Proprotein convertase subtilisin / Kexin type 9 (PCSK9) degrades hepatic low-density lipoprotein receptor (LDLR) to regulate lipid metabolism. It is unclear if PCSK9 plays a role in neurodegenerative diseases. OBJECTIVE: This study was designed to determine whether PCSK9 is crucial between hyperlipidemia and Alzheimer's disease. The interrelationship between PCSK9 and neuronal apoptosis was explored in PC12 cells in response to treatment with oxidized low-density lipoprotein (oxLDL)...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28089094/postprandial-clearance-of-oxidized-low-density-lipoprotein-in-patients-with-stroke-due-to-atherosclerosis
#15
Sami Al Kasab, Christy Cassarly, Ngoc-Anh Le, Renee Martin, Julia Brinley, Marc I Chimowitz, Tanya N Turan
BACKGROUND: Oxidized low-density lipoprotein (OxLDL) is a contributor to atherosclerosis development. OxLDL formation increases in the postprandial state due to oxidative stress in subjects with coronary artery disease (CAD) and diabetes, but has not been studied in patients with atherosclerotic stroke. We aimed to determine differences in postprandial OxLDL in patients with atherosclerotic stroke compared to stroke from other causes. METHODS: Patients with ischemic stroke but no history of CAD (n = 42) were enrolled and categorized by stroke subtype as extracranial atherosclerosis (EC), n = 12; intracranial atherosclerosis (IC), n = 16; or other cause, n = 14...
March 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27956218/an-intensive-lifestyle-intervention-reduces-circulating-oxidised-low-density-lipoprotein-and-increases-human-paraoxonase-activity-in-obese-subjects
#16
Angelo Russo, Irene Pirisinu, Carmine Vacca, Elisa Reginato, Emilia Sbroma Tomaro, Roberto Pippi, Cristina Aiello, Vincenzo Nicola Talesa, Pierpaolo De Feo, Rita Romani
OBJECTIVE: Obesity has a great impact on cardiovascular morbidity and mortality, the treatment of this pathological state is important given the significant health consequences. Lifestyle and behaviour changes play a significant role in weight management. The purpose of this study was to investigate the impact of an intensive multidisciplinary lifestyle intervention on well-known atherogenic factors in a group of overweight and obese subjects. METHODS: A total of 44 people with overweight/obesity underwent a lifestyle intervention based on nutritional education, psychological support and a 3-month exercise training program with a frequency of twice a week...
December 9, 2016: Obesity Research & Clinical Practice
https://www.readbyqxmd.com/read/27940038/increased-levels-of-legumain-in-plasma-and-plaques-from-patients-with-carotid-atherosclerosis
#17
Ngoc Nguyen Lunde, Sverre Holm, Tuva B Dahl, Inass Elyouncha, Bjørnar Sporsheim, Ida Gregersen, Azhar Abbas, Mona Skjelland, Terje Espevik, Rigmor Solberg, Harald Thidemann Johansen, Bente Halvorsen
BACKGROUND AND AIMS: The cysteine protease legumain has been shown to be up-regulated in unstable atherosclerotic plaques. This study aims to further elucidate legumain in atherosclerosis, by examining legumain in plasma and carotid plaques from patients with carotid stenosis. Furthermore, legumain secretion from monocyte-derived macrophages treated with atherogenic lipids during macrophage polarization was studied. METHODS: Plasma levels of legumain from patients with carotid stenosis (n = 254), healthy controls (n = 91), and secreted from monocyte-derived macrophages were assessed by enzyme-linked-immunosorbent assay...
February 2017: Atherosclerosis
https://www.readbyqxmd.com/read/27870764/anti-ro-and-concomitant-anti-la-autoantibodies-strongly-associated-with-anti-oxldl-or-anti-phospholipid-antibody-in-systemic-lupus-erythematosus
#18
Biji Theyilamannil Kurien, James Fesmire, Camille Jean Anderson, Robert Hal Scofield
BACKGROUND: Premature atherosclerosis is observed in systemic lupus erythematosus (SLE). Oxidative modification of LDL is associated with atherosclerotic plaque formation. OBJECTIVES: We hypothesized that anti-oxidized LDL (oxLDL) and anti-phospholipid (APL) in SLE sera would segregate with specific antibody subsets, and that anti-oxLDL antibodies will linger in circulation over an extended period. PATIENTS AND METHODS: Sixty-seven SLE and control subjects and two SLE subjects with sera collected longitudinally for 13 years were tested for anti-oxLDL and IgG/IgM/IgA APL antibodies...
December 2016: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/27825356/the-association-between-oxidized-low-density-lipoprotein-antibodies-and-hematological-diseases
#19
Hao Li, Da-Qing Li, Xiang-Xin Li, Lu-Qun Wang
BACKGROUND: The aim of the study is to compare the profiles of antibodies (IgM and IgG) against oxidized low-density lipoprotein (oxLDL) of hematological diseases. METHODS: The serum antibodies of oxLDL-IgM and oxLDL-IgG for 446 cases with hematological diseases and 90 patients with primary hypertension and 90 healthy controls were measured by enzyme-linked immunosorbent assay (ELISA) in a cross-section survey. The association of serum oxLDL-LgM and oxLDL-IgG with hematological diseases was analyzed by multiple linear regression model...
November 8, 2016: Lipids in Health and Disease
https://www.readbyqxmd.com/read/27822126/comparison-of-lipid-profile-parameters-and-oxidized-low-density-lipoprotein-between-normal-and-preeclamptic-pregnancies-in-a-tertiary-care-hospital-in-nepal
#20
Santosh Timalsina, Prajwal Gyawali, Aseem Bhattarai
INTRODUCTION: Preeclampsia is a pregnancy-specific complication that significantly contributes to maternal and perinatal morbidity and mortality worldwide, even more so in developing countries such as Nepal. The potential contribution of dyslipidemia and elevated levels of oxidized low-density lipoprotein (oxLDL) in the pathogenesis of preeclamptic pregnancies has been observed in several studies. The aim of this study was to compare the maternal lipid profile parameters and particularly oxLDL between preeclamptic and healthy pregnancies and also correlate oxLDL with other lipid profile parameters...
2016: International Journal of Women's Health
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