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Lipids and dyslipidemia

Tomáš Vaisar, Erica Couzens, Arnold Hwang, Michael Russell, Carolyn E Barlow, Laura F DeFina, Andrew N Hoofnagle, Francis Kim
AIMS/HYPOTHESIS: One of the hallmarks of diabetes is impaired endothelial function. Previous studies showed that HDL can exert protective effects on endothelium stimulating NO production and protecting from inflammation and suggested that HDL in obese people with diabetes and dyslipidemia may have lower endothelial protective function. We aimed to investigate whether type 2 diabetes impairs HDL endothelium protective functions in people with otherwise normal lipid profile. METHODS: In a case-control study (n = 41 per group) nested in the Cooper Center Longitudinal Study we tested the ability of HDL to protect endothelium by stimulating endothelial nitric oxide synthase activity and suppressing NFκB-mediated inflammatory response in endothelial cells...
2018: PloS One
Emiko Shinozawa, Yuichiro Amano, Hiroko Yamakawa, Megumi Haba, Mitsuyuki Shimada, Ryuichi Tozawa
We attempted to clarify the therapeutic capability of antagonists of the farnesoid X receptor (FXR), a nuclear receptor that regulates lipid and bile acid metabolism. Herein, we report the antidyslipidemic effects of a novel synthesized FXR antagonist, compound-T1, utilizing a dyslipidemic hamster model. Compound-T1 selectively inhibited chenodeoxycholic acid-induced FXR activation (IC50 , 2.1 nmol·L-1 ). A hamster model of diet-induced hyperlipidemia was prepared to investigate the antidyslipidemic effects of compound-T1 through comparative studies of the nonstatin lipid-modulating agents ezetimibe, cholestyramine, and torcetrapib...
April 2018: Pharmacology Research & Perspectives
Woojin Scott Kim, Eve Jary, Russell Pickford, Ying He, Rebekah M Ahmed, Olivier Piguet, John R Hodges, Glenda M Halliday
Behavioral variant frontotemporal dementia (bvFTD) is the most prevalent form of FTD syndromes. bvFTD is characterized clinically by changes in behavior and cognition and pathologically by focal brain atrophy and concomitant loss of lipids. bvFTD is further characterized by eating abnormalities that result in dyslipidemia. Although dyslipidemia is apparent in bvFTD, very little is known about global lipid changes in bvFTD and lipid dysregulation underlying bvFTD. Here, we undertook a comprehensive lipidomics analysis of blood plasma from patients with bvFTD, patients with Alzheimer's disease (AD) and controls, using liquid chromatography-tandem mass spectrometry, with the aim of understanding lipid dysregulation in bvFTD...
2018: Frontiers in Neurology
Juan P González-Rivas, Ramfis Nieto-Martínez, Imperia Brajkovich, Eunice Ugel, Alejandro Rísquez
BACKGROUND: The prevalence of dyslipidemia in multiple regions of Venezuela is unknown. The Venezuelan Metabolic Syndrome, Obesity and Lifestyle Study (VEMSOLS) was undertaken to evaluate cardiometabolic risk factors in Venezuela. OBJECTIVE: To determine the prevalence of dyslipidemia in five populations from three regions of Venezuela. METHODS: During the years 2006 to 2010, 1320 subjects aged 20 years or older were selected by multistage stratified random sampling from all households in five municipalities from 3 regions of Venezuela: Lara State (Western region), Merida State (Andean region), and Capital District (Capital region)...
January 2018: Arquivos Brasileiros de Cardiologia
Bedowra Zabeen, Ana Margarida Balsa, Nasreen Islam, Mukta Parveen, Jebun Nahar, Kishwar Azad
Introduction: Dyslipidemia and hyperglycemia are metabolic abnormalities commonly found in young patients with Type 1 diabetes mellitus (T1DM) and both increase the risk of cardiovascular disease. Methods: This cross-sectional study was aimed to evaluate the pattern of dyslipidemia and its relationship with other risk factors in children and adolescents with T1DM. A total of 576 T1DM patients aged 10-18 years who attended Changing Diabetes in Children, a pediatric diabetes clinic in Bangladesh Institute of Research and Rehabilitation for Diabetes, Endocrine and Metabolic Disorders over 1 year period from July 2015 to June 2016 were included in this study...
January 2018: Indian Journal of Endocrinology and Metabolism
Consolacion Garcia-Contreras, Marta Vazquez-Gomez, Laura Torres-Rovira, Jorge Gonzalez, Esteban Porrini, Magali Gonzalez-Colaço, Beatriz Isabel, Susana Astiz, Antonio Gonzalez-Bulnes
Sarcopenia and sarcopenic obesity are currently considered major global threats for health and well-being. However, there is a lack of adequate preclinical models for their study. The present trial evaluated the suitability of aged swine by determining changes in adiposity, fatty acids composition, antioxidant status and lipid peroxidation, development of metabolic disturbances and structural changes in tissues and organs. Iberian sows with clinical evidence of aging-related sarcopenia were fed a standard diet fulfilling their maintenance requirements or an obesogenic diet for 100 days...
March 12, 2018: International Journal of Molecular Sciences
L J Li, Y Z Guan, F Lü, Y W Song, X J Xu, Y Jiang, O Wang, W B Xia, X P Xing, M Li
Objective: To investigate the glucose and lipid metabolic disorders in patients with myasthenia gravis (MG) without glucocorticoid therapy, and the relationships between insulin, insulin resistance, muscle strength, serum levels of osteocalcin, 25-hydroxy vitamin D (25OHD) and glucose and lipid metabolism. Methods: A total of 102 MG patients [(40±11) years old, 43 males and 59 females] without glucocorticoid treatment were enrolled in this cross-sectional study. Height, weight and the handgrip of dominant hands were measured...
February 27, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Lei Zhao, Z Varghese, J F Moorhead, Yaxi Chen, Xiong Z Ruan
Background: CD36 is a multi-functional class B scavenger receptor, which acts as an important modulator of lipid homeostasis and immune responses. Sources of data: This review uses academic articles. Areas of agreement: CD36 is closely related to the development and progression of atherosclerosis. Areas of controversy: Both persistent up-regulation of CD36 and deficiency of CD36 increase the risk for atherosclerosis...
March 9, 2018: British Medical Bulletin
Chou-Yueh Chang, Horng-Rong Chang, Hsing-Chun Lin, Han-Hsin Chang
Objective Vegetarian diets have been shown to increase the risk of certain nutritional deficiencies, such as iron. As a number of patients with chronic kidney disease (CKD) in Taiwan are lacto-ovo vegetarians, the aim of this study was to investigate the effects of different proportions and sources of protein in lacto-ovo vegetarian and omnivorous diets, as well as the influence of adequate dietary protein intake, on renal function and nutritional status of Taiwanese patients with stage 3 to stage 5 CKD. Methods This is a cross-sectional study...
March 13, 2018: Journal of the American College of Nutrition
Jiye Sun, Xuemei Chen, Ting Liu, Xushun Jiang, Yue Wu, Shan Yang, Wei Hua, Zhengdong Li, Huizhe Huang, Xiongzhong Ruan, Xiaogang Du
BACKGROUND Increased lipid accumulation in renal tubular epithelial cells (TECs) contributes to their injury and dysfunction and progression of tubulointerstitial fibrosis. Berberine (BBR), a natural plant alkaloid isolated from traditional medicine herbs, is effective in lowing serum lipid, and has a protective effect on chronic kidney disease (CKD) with dyslipidemia, including diabetic nephropathy. The aim of this study was to investigate the effect of BBR on palmitate (PA)-induced lipid accumulation and apoptosis in TECs...
March 12, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Dandan Huang, Baoqing Liu, Kai Huang, Kun Huang
Metabolic disorders, including obesity, non-alcoholic fatty liver disease (NAFLD), metabolic syndrome and diabetes, are complex and progressive diseases. Enoyl coenzyme A hydratase 1 (Ech1) is an enzyme that participates in mitochondrial fatty acid β-oxidation; however, little is known regarding the significance of Ech1 in the pathogenesis of metabolic disorders. Here, we report that high-fat-diet (HFD)-induced and genetic obesity could increase Ech1 expression in mouse liver. The overexpression of Ech1 using adeno-associated virus (AAV2/8) ameliorated HFD-induced liver lipid accumulation and accompanying liver injury...
March 8, 2018: Biochemical and Biophysical Research Communications
Zhao Dong, Haozhe Shi, Mingming Zhao, Xin Zhang, Wei Huang, Yuhui Wang, Lemin Zheng, Xunde Xian, George Liu
OBJECTIVE: Lecithin cholesterol acyltransferase (LCAT) plays a pivotal role in HDL metabolism but its influence on atherosclerosis remains controversial for decades both in animal and clinical studies. Because lack of cholesteryl ester transfer protein (CETP) is a major difference between murine and humans in lipoprotein metabolism, we aimed to create a novel Syrian Golden hamster model deficient in LCAT activity, which expresses endogenous CETP, to explore its metabolic features and particularly the influence of LCAT on the development of atherosclerosis...
March 8, 2018: Metabolism: Clinical and Experimental
Natasha Slhessarenko, Cor J F Fontes, Maria Eduarda S F Barreto, Raymundo S Azevedo, Adagmar Andriolo
OBJECTIVE: To determine decision limits (DL) for total cholesterol (TC), LDL-cholesterol (LDL-c), non-HDL cholesterol (NHDL-c), HDL-cholesterol (HDL-c), and triglycerides (TG) in healthy children and adolescents from Cuiabá, Brazil. METHODS: This was a cross-sectional study of 1866 healthy children and adolescents randomly selected from daycare centers and public schools in Cuiabá. The desirable levels of serum lipids were defined using the classic criteria, i...
March 8, 2018: Jornal de Pediatria
Hernán Gonzalo Villagarcía, María Cecilia Castro, Luisa González Arbelaez, Guillermo Schinella, María Laura Massa, Eduardo Spinedi, Flavio Francini
AIM: Hypothalamic obese rats are characterized by pre-diabetes, dyslipidemia, hyperadiposity, inflammation and, liver dysmetabolism with oxidative stress (OS), among others. We studied endocrine-metabolic dysfunctions and, liver OS and inflammation in both monosodium l-glutamate (MSG)-neonatally damaged and control litter-mate (C) adult male rats, either chronically treated with N-Acetyl-l-Cysteine since weaned (C-NAC and MSG-NAC) or not. METHODOLOGY: We evaluated circulating TBARS, glucose, insulin, triglycerides, uric acid (UA) and, aspartate and alanine amino-transferase; insulin sensitivity markers (HOMA indexes, Liver Index of Insulin Sensitivity -LISI-) were calculated and liver steps of the insulin-signaling pathway were investigated...
March 6, 2018: Life Sciences
Hanifi Ucpunar, Ismet Yalkin Camurcu, Serda Duman, Esra Ucpunar, Hakan Sofu, Avni Ilhan Bayhan
Background and purpose - Patients with slipped capital femoral epiphysis (SCFE) are phenotypically overweight or obese and may therefore require clinical follow-up of obesity-related disorders. We evaluated obesity-related disorders such as dyslipidemia, type 2 diabetes mellitus (DM), and vitamin-D deficiency during the postoperative period in patients with SCFE. Patients and methods - 51 patients who were operated and followed-up for SCFE and 62 healthy adolescents without SCFE (control group) were included in this retrospective study...
March 9, 2018: Acta Orthopaedica
Dorte Glintborg, Katrine Hass Rubin, Mads Nybo, Bo Abrahamsen, Marianne Andersen
BACKGROUND: Polycystic ovary syndrome (PCOS) is associated with obesity and low grade inflammation and the risk for cardiovascular disease (CVD) could be increased in PCOS. METHODS: National register-based study including women with PCOS and no previous diagnosis of CVD, hypertension, or dyslipidemia. PCOS Denmark (N = 18,112) included women with PCOS in the Danish National Patient Register. PCOS Odense University Hospital (OUH, N = 1165) was an embedded cohort including premenopausal women with PCOS and clinical and biochemical examination...
March 8, 2018: Cardiovascular Diabetology
Jia Liu, Lu Wang, Yun Qian, Juncheng Dai, Chong Shen, Guangfu Jin, Zhibin Hu, Hongbing Shen
AIM: Dozens of susceptibility loci have been identified by type 2 diabetes (T2D) genome wide association study (GWAS) in Europeans. In our previous studies, we systematically evaluated the association of 48 susceptibility loci with T2D risk in Chinese Hans. Because dyslipidemia and hyperglycemia are implicated in the pathogenic process of T2D, we further evaluated whether these 48 single nucleotide polymorphisms (SNPs) were related to fasting plasma glucose (FPG) or lipid levels in Chinese Hans...
March 5, 2018: Diabetes Research and Clinical Practice
Kirstin Mittelstraß, Melanie Waldenberger
PURPOSE OF REVIEW: It is becoming increasingly evident that epigenetic mechanisms, particularly DNA methylation, play a role in the regulation of blood lipid levels and lipid metabolism-linked phenotypes and diseases. RECENT FINDINGS: Recent genome-wide methylation and candidate gene studies of blood lipids have highlighted several robustly replicated methylation markers across different ethnicities. Furthermore, many of these lipid-related CpG sites associated with blood lipids are also linked to lipid-related phenotypes and diseases...
April 2018: Current Opinion in Lipidology
Hoe-Yune Jung, Bobae Kim, Yosep Ji, Hye-Guk Ryu, Soyoung Park, Seung Hee Choi, In-Kyu Lee, Munki Kim, You Jeong Lee, Woojin Song, Young Hee Lee, Hyung Jin Choi, Chang-Kee Hyun, Wilhelm H Holzapfel, Kyong-Tai Kim
Although peroxisome proliferator-activated receptors (PPARs)α/γ dual agonists can be beneficial for treatment of dyslipidemia in patients with type 2 diabetes, their use is limited owing to various side effects, including body weight gain, edema, and heart failure. Here, we demonstrate that amodiaquine, an antimalarial agent, has potential as a PPARα/γ dual agonist with low risk of adverse effects. Amodiaquine selectively activated the transcriptional activities of PPARα/γ, and enhanced both fatty acid oxidation and glucose uptake without altering insulin secretion in vitro...
March 8, 2018: Diabetes, Obesity & Metabolism
Ajax M Atta, João Paulo C G Silva, Mittermayer B Santiago, Isabela S Oliveira, Rodrigo C Oliveira, Maria Luiza B Sousa Atta
Systemic lupus erythematosus (SLE) is associated with dyslipidemia, atherosclerosis, and cardiovascular disease. In this study, we investigated the presence of dyslipidemia in Brazilian SLE patients by evaluating their lipid profile and immune status, including the production of autoantibodies and cytokines involved in atherogenesis. Ninety-four female SLE patients participated in this study and, based on their lipid profile, were classified as dyslipidemic or not. All were tested for antinuclear antibodies (ANAs), antiphospholipid antibodies, and autoantibodies to extractable nuclear antigens and double-stranded DNA...
March 8, 2018: Clinical Rheumatology
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