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Lipids in Health and Disease

Rasha Babiker, Khalifa Elmusharaf, Michael B Keogh, Amal M Saeed
BACKGROUND: There is a strong association between cardiometabolic risk and adipose tissue dysfunction with great consequences on type 2 diabetic patients. Visceral Adiposity Index (VAI) is an indirect clinical marker of adipose tissue dysfunction. Gum Arabic (GA) is a safe dietary fiber, an exudate of Acacia Senegal. Gum Arabic had shown lipid lowering effect in both humans and animals. The aim of this trial was to determine the effect of GA supplementation on anthropometric obesity marker, Visceral Adiposity Index (VAI) and blood pressure in patients with type 2 diabetes mellitus...
March 20, 2018: Lipids in Health and Disease
Maysa M Cruz, Andressa B Lopes, Amanda R Crisma, Roberta C C de Sá, Wilson M T Kuwabara, Rui Curi, Paula B M de Andrade, Maria I C Alonso-Vale
BACKGROUND: We have recently demonstrated that palmitoleic acid (16:1n7) increases lipolysis, glucose uptake and glucose utilization for energy production in white adipose cells. In the present study, we tested the hypothesis that palmitoleic acid modulates bioenergetic activity in white adipocytes. METHODS: For this, 3 T3-L1 pre-adipocytes were differentiated into mature adipocytes in the presence (or absence) of palmitic (16:0) or palmitoleic (16:1n7) acid at 100 or 200 μM...
March 20, 2018: Lipids in Health and Disease
Yan-Chuan Li, Chun-Long Li, Rui Li, Yang Chen, Meng Zhang, Pan-Pan Guo, Dan Shi, Xiao-Ning Ji, Ren-Nan Feng, Chang-Hao Sun
BACKGROUND: It has been established in RCTs that high dose of phytosterols can significantly reduce blood cholesterol. However, it was uncertain whether low dose of phytosterols from daily diets was effective. In this study, we evaluated the associations between dietary phytosterols and body mass index (BMI), waist circumference (WC), blood glucose, serum lipid profiles and prevalence of overweight/obesity and abdominal obesity in healthy subjects. METHODS: Four hundred nine men and 503 women aged 18-60 years were included in this study...
March 16, 2018: Lipids in Health and Disease
Eyup Avci, Tuncay Kiris, Abdullah Orhan Demirtas, Hasan Kadi
BACKGROUND: The red cell distribution width (RDW) is a numerical measurement of variability in the size of red blood cells. Many studies have shown that high-density lipoprotein cholesterol (HDL-C), has an anti-inflammatory effect. The aim of this study was to investigate the relationship between the serum HDL-C level and RDW in patients with coronary artery disease (CAD). METHODS: Patients who underwent coronary angiography were reviewed. Patients who had moderate or severe heart failure, moderate or severe renal failure, significant systemic disease, anemia, a blood transfusion within the last 3 months, or a hematologic disease, as well as those who were taking lipid-lowering medication, were excluded from the study...
March 16, 2018: Lipids in Health and Disease
Kana Ide, Masaya Koshizaka, Hirotake Tokuyama, Takahiko Tokuyama, Takahiro Ishikawa, Yoshiro Maezawa, Minoru Takemoto, Koutaro Yokote
BACKGROUND: Patients with type 2 diabetes are at high risk for cardiovascular disease. Although hydroxymethylglutaryl-CoA reductase inhibitors (statins) can reduce cardiovascular events, residual risk remains even after target low-density lipoprotein cholesterol (LDL-C) levels have been achieved. Lipoprotein particle size and fraction changes are thought to contribute to such risks. The purpose of this study was to evaluate the effects of n-3 polyunsaturated fatty acids (n-3 PUFAs), predominantly eicosapentaenoic acid and docosahexaenoic acid, on lipoprotein particle size, concentration, and glycemic control in Japanese patients with type 2 diabetes and hypertriglyceridemia...
March 15, 2018: Lipids in Health and Disease
Samia Hadj Ahmed, Wafa Kharroubi, Nadia Kaoubaa, Amira Zarrouk, Fathi Batbout, Habib Gamra, Mohamed Fadhel Najjar, Gérard Lizard, Isabelle Hininger-Favier, Mohamed Hammami
BACKGROUND: Nutritional choices, which include the source of dietary fatty acids (FA), have an important significant impact on coronary artery disease (CAD). We aimed to determine on patients with CAD the relationships between Trans fatty acids (Trans FA) and different CAD associated parameters such as inflammatory and oxidative stress parameters in addition to Gensini score as a vascular severity index. METHODS: Fatty acid profiles were established by gas chromatography from 111 CAD patients compared to 120 age-matched control group...
March 15, 2018: Lipids in Health and Disease
Christine Contini, Martin Jansen, Brigitte König, Filiz Markfeld-Erol, Mirjam Kunze, Stefan Zschiedrich, Ulrich Massing, Irmgard Merfort, Heinrich Prömpeler, Ulrich Pecks, Karl Winkler, Gerhard Pütz
BACKGROUND: Preeclampsia is a life-threatening disease in pregnancy, and its complex pathomechanisms are poorly understood. In preeclampsia, lipid metabolism is substantially altered. In late onset preeclampsia, remnant removal disease like lipoprotein profiles have been observed. Lipid apheresis is currently being explored as a possible therapeutic approach to prolong preeclamptic pregnancies. Here, apheresis-induced changes in serum lipid parameters are analyzed in detail and their implications for preeclamptic lipid metabolism are discussed...
March 14, 2018: Lipids in Health and Disease
Linda R Wang, Adam D McIntyre, Robert A Hegele
BACKGROUND: Abetalipoproteinemia and homozygous hypobetalipoproteinemia are classical Mendelian autosomal recessive and co-dominant conditions, respectively, which are phenotypically similar and are usually caused by bi-allelic mutations in MTTP and APOB genes, respectively. Instances of more complex patterns of genomic variants resulting in this distinct phenotype have not been reported. METHODS: A 43 year-old male had a longstanding severe deficiency of apolipoprotein (apo) B-containing lipoproteins and circulating fat soluble vitamins consistent with either abetalipoproteinemia or homozygous familial hypobetalipoproteinemia (FHBL)...
March 14, 2018: Lipids in Health and Disease
Hong-Ren Yu, You-Lin Tain, Mao-Meng Tiao, Chih-Cheng Chen, Jiunn-Ming Sheen, I-Chun Lin, Shih-Wen Li, Ching-Chou Tsai, Yu-Ju Lin, Kai-Sheng Hsieh, Li-Tung Huang
BACKGROUND: Hypertension may result from high-fat (HF) diet induced-obesity and overexposure to glucocorticoids in utero. Recent studies demonstrated the potent contribution of adipose tissue's renin-angiotensin system (RAS) to systemic RAS, which plays a key role in regulating blood pressure (BP). In this study, we investigated the effects of prenatal dexamethasone (DEX) exposure and postnatal HF diet on RAS of adipose tissue. METHODS: RAS and BP of 6-month old rats exposed to prenatal DEX and/or postnatal HF diet were examined...
March 14, 2018: Lipids in Health and Disease
Val A Fajardo, John S Mikhaeil, Cameron F Leveille, A Russell Tupling, Paul J LeBlanc
BACKGROUND: An increase in phosphatidylcholine:phosphatidylethanolamine (PC:PE) and a decrease in fatty acyl chain length, monounsaturated:polyunsaturated (MUFA:PUFA) fatty acyl ratio reduces SERCA activity in liposomes and in mouse models of obesity and muscular dystrophy. We have previously shown that maximal SERCA activity is significantly reduced in mechanically overloaded (OVL) plantaris, however, whether changes in PC:PE ratio or fatty acyl composition may contribute to the alterations in maximal SERCA activity remain unknown...
March 13, 2018: Lipids in Health and Disease
Mouokeu Raymond Simplice, Womeni Hilaire Macaire, Njike Ngamga Fabrice Hervé, Tonfack Djikeng Fabrice, Djopnang DJimbie Justin, Tchoumbougnang François, Kuiate Jules-Roger
BACKGROUNDS: Oils of fish origin are a very rich source of Omega - 3 and Omega - 6 fatty acids. They have been suggested to provide numerous health benefits for humans involving antimicrobial properties. Chrysichthys nigrodigitatus and Hepsetus odoe are two fishes well known in Cameroon. The chemical composition and the antibacterial activity of these fishes derived oils are unknown. The study was designed to valorise C. nigrodigitatus and H.s odoe oils activity against food poisoning bacteria...
March 12, 2018: Lipids in Health and Disease
Jun Luo, Li Xu, Jiang Li, Shuiping Zhao
BACKGROUND: Apolipoprotein (apo) A-V is a key regulator of triglyceride (TG) metabolism. We investigated effects of apoA-V on lipid metabolism in cardiomyocytes in this study. METHODS: We first examined whether apoA-V can be taken up by cardiomyocytes and whether low density lipoprotein receptor family members participate in this process. Next, triglyceride (TG) content and lipid droplet changes were detected at different concentrations of apoA-V in normal and lipid-accumulation cells in normal and obese animals...
March 12, 2018: Lipids in Health and Disease
Mónica Muñoz-Vega, Felipe Massó, Araceli Páez, Elizabeth Carreón-Torres, Hector A Cabrera-Fuentes, José Manuel Fragoso, Nonanzit Pérez-Hernández, Laurent O Martinez, Souad Najib, Gilberto Vargas-Alarcón, Óscar Pérez-Méndez
BACKGROUND: Primary cultures endothelial cells have been used as models of endothelial related diseases such atherosclerosis. Biological behavior of primary cultures is donor-dependent and data could not be easily reproducible; endothelial cell lines are emerging options, particularly, human dermal microvascular endothelial cells (HMEC-1), that should be validated to substitute primary cultures for the study of HDL functions. METHODS: Morphology, size and granularity of cells were assessed by phase contrast microscopy and flow cytometry of HMEC-1...
March 9, 2018: Lipids in Health and Disease
Kelly W Sheppard, Carol L Cheatham
BACKGROUND: Omega-6 and omega-3 fatty acids (FAs) and their ratio have been shown to affect cognitive function in children and older adults. With these analyses, we aimed to describe omega-6 and omega-3 FA intake among children and older adults in light of FA intake recommendations and with consideration of overall diet. METHODS: Data were merged from two cross-sectional studies with 219 children 7 to 12 years old and one longitudinal study with 133 adults 65 to 79 years old...
March 9, 2018: Lipids in Health and Disease
Xiao-Dan Mo, Li-Ping Gao, Qing-Jun Wang, Jie Yin, Yu-Hong Jing
BACKGROUND: The fibrillation of islet amyloid polypeptide (IAPP) triggered the amyloid deposition, then enhanced the loss of the pancreatic islet mass. However, it is not clear what factor is the determinant in development of the fibril formation. The aim of this study is to investigate the effects of lipid on IAPP fibril and its injury on pancreatic islet. METHODS: The fibril form of human IAPP (hIAPP) was tested using thioflavin-T fluorescence assay and transmission electron microscope technology after incubated with palmitate for 5 h at 25 °C...
March 9, 2018: Lipids in Health and Disease
Márcia Cristina Fernandes Messias, Giovana Colozza Mecatti, Denise Gonçalves Priolli, Patrícia de Oliveira Carvalho
The plasmalogens are a class of glycerophospholipids which contain a vinyl-ether and an ester bond at the sn-1 and sn-2 positions, respectively, in the glycerol backbone. They constitute 10 mol% of the total mass of phospholipids in humans, mainly as membrane structure components. Plasmalogens are important for the organization and stability of lipid raft microdomains and cholesterol-rich membrane regions involved in cellular signaling. In addition to their structural roles, a subset of ether lipids are thought to function as endogenous antioxidants and emerging studies suggest that they are involved in cell differentiation and signaling pathways...
March 7, 2018: Lipids in Health and Disease
Yong-Tao Wang, Yang Li, Yi-Tong Ma, Yi-Ning Yang, Xiang Ma, Xiao-Mei Li, Fen Liu, Bang-Dang Chen
BACKGROUND: Limited information is available when it comes to the impact of genetic on Calcific Aortic Stenosis (CAS). Apolipoprotein B (apoB) is a key component in lipid metabolism and plays an important role in the dynamic equilibrium of cholesterol. We performed a case-control study to explore the association of apoB genetic polymorphisms with CAS in Chinese subjects, in Xinjiang, China. METHODS: We designed a case-control study including 314 CAS patients and 652 age- and sex-matched control subjects...
March 7, 2018: Lipids in Health and Disease
Xiaowei Zhu, Lugang Yu, Hui Zhou, Qinhua Ma, Xiaohua Zhou, Ting Lei, Jiarong Hu, Wenxin Xu, Nengjun Yi, Shufeng Lei
BACKGROUND: Atherogenic index of plasma (AIP) has been reported to be associated with cardiovascular diseases. However no study has yet systematically evaluated the association between AIP and obesity and its advantage in obesity prediction compared with conventional lipid components. METHODS: A total of 6465 participants aged over 30 years were included in this study. Blood lipid components including triglyceride (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) were measured, and AIP was calculated as log10 (TG/HDL-C)...
March 5, 2018: Lipids in Health and Disease
Anita Szentpéteri, Hajnalka Lőrincz, Sándor Somodi, Viktória Evelin Varga, György Paragh, Ildikó Seres, György Paragh, Mariann Harangi
BACKGROUND: Obestatin is a ghrelin-associated peptide, derived from preproghrelin. Although many of its effects are unclear, accumulating evidence supports positive actions on both metabolism and cardiovascular function. To date, level of obestatin and its correlations to the lipid subfractions in non-diabetic obese (NDO) patients have not been investigated. METHODS: Fifty NDO patients (BMI: 41.96 ± 8.6 kg/m2 ) and thirty-two normal-weight, age- and gender-matched healthy controls (BMI: 24...
March 5, 2018: Lipids in Health and Disease
Marie-Laure Lalanne-Mistrih, Philippe Connes, Yann Lamarre, Nathalie Lemonne, Marie-Dominique Hardy-Dessources, Vanessa Tarer, Maryse Etienne-Julan, Dominique Mougenel, Benoît Tressières, Marc Romana
BACKGROUND: The pathophysiology of sickle cell disease (SCD) and the variability of its clinical expression remain not fully understood, whether within or between different SCD genotypes. Recent studies have reported associations between lipid levels and several SCD complications. If lipid levels have been previously described as low in sickle cell anemia (SCA), few data have been provided for sickle cell SC disease (SCC). We designed our epidemiological study to isolate lipid levels and profiles by genotype in Guadeloupian cohorts of SCA and SCC adult patients, at steady state...
March 5, 2018: Lipids in Health and Disease
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