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Nawel Haïli, Julien Louap, Michel Canonge, Franjo Jagic, Christelle Louis-Mondésir, Thierry Chardot, Pierre Briozzo
The membrane proteins acyl-CoA:diacylglycerol acyltransferases (DGAT) are essential actors for triglycerides (TG) biosynthesis in eukaryotic organisms. Microbial production of TG is of interest for producing biofuel and value-added novel oils. In the oleaginous yeast Yarrowia lipolytica, Dga1p enzyme from the DGAT2 family plays a major role in TG biosynthesis. Producing recombinant DGAT enzymes pure and catalytically active is difficult, hampering their detailed functional characterization. In this report, we expressed in Escherichia coli and purified two soluble and active forms of Y...
2016: PloS One
Wencheng Zheng, Xiaoming Shang, Chunlai Zhang, Xiang Gao, Barry Robinson, Jing Liu
OBJECTIVES: Diabetic cardiomyopathy (DCM) is characterized by cardiac dysfunction, myocardial inflammation, interstitial fibrosis and cardiomyocytes apoptosis. The present study aimed to investigate the effects of carvedilol on cardiac function and the AKT/XIAP signaling pathway in DCM rats. METHODS: Male Wistar rats were randomly divided into 3 groups: the control group, diabetic mellitus (DM) group and DM with carvedilol treatment group. DM rats were induced by streptozotocin accompanied by high energy intake...
October 26, 2016: Cardiology
Jeppe H Ekberg, Maria Hauge, Line V Kristensen, Andreas N Madsen, Maja S Engelstoft, Anna-Sofie Husted, Rasmus Sichlau, Kristoffer L Egerod, Pascal Timshel, Timothy J Kowalski, Fiona M Gribble, Frank Reiman, Harald S Hansen, Andrew D Howard, Birgitte Holst, Thue W Schwartz
Triglycerides are among the most efficacious stimulators of incretin secretion; however the relative importance of FFA1 (GPR40), FFA4 (GPR120) and GPR119 which all recognize triglyceride metabolites, i.e. LCFA and 2-MAG respectively, is still unclear. Here, we find all three receptors to be highly expressed and highly enriched in FACS-purified GLP-1 and GIP cells isolated from transgenic reporter mice. In vivo, the triglyceride-induced increase in plasma GIP was significantly reduced in FFA1 deficient mice (to 34% - mean of four experiments each with 8-10 animals), in GPR119 deficient mice (to 24 %) and in FFA1/FFA4 double deficient mice (to 15%) but not in FFA4 deficient mice...
October 25, 2016: Endocrinology
Han-Shi Zeng, Wei-Xia Lin, Shu-Tao Zhao, Zhan-Hui Zhang, Heng-Wen Yang, Feng-Ping Chen, Yuan-Zong Song, Zhi-Nan Yin
Neonatal intrahepatic cholestasis caused by citrin deficiency (NICCD) is an autosomal recessive disorder resulting from biallelic mutations of the SLC25A13 gene. Due to the lack of well‑recognized clinical or biochemical diagnostic criteria, the definitive diagnosis of this disease relies on the genetic analysis of SLC25A13 at present. As novel large deletion/insertion mutations of the SLC25A13 gene are difficult to detect using routine DNA analytic approaches, the timely diagnosis of patients with these types of mutations remains a challenge...
October 21, 2016: Molecular Medicine Reports
L Balazova, K Krskova, M Suski, V Sisovsky, N Hlavacova, R Olszanecki, D Jezova, S Zorad
Increasing evidence indicates a role of oxytocin in controlling energy metabolism. The aim of his study was to investigate oxytocin effects on obese phenotype in leptin-resistant Zucker fatty rats, focusing on glucose and lipid metabolism. Zucker fatty rats and their lean controls were treated with oxytocin (3.6 μg/100g body weight/day) by osmotic minipumps implanted subcutaneously for 2 weeks. Two-hours intraperitoneal glucose tolerance test was performed in fasting rats. Oxytocin decreased food intake in both phenotypes while body weight gain reduced only in obese animals...
August 2016: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
Lydia M Le Page, Daniel R Ball, Vicky Ball, Michael S Dodd, Jack J Miller, Lisa C Heather, Damian J Tyler
Understanding and assessing diabetic metabolism is vital for monitoring disease progression and improving treatment of patients. In vivo assessments, using MRI and MRS, provide non-invasive and accurate measurements, and the development of hyperpolarized (13) C spectroscopy in particular has been demonstrated to provide valuable metabolic data in real time. Until now, studies have focussed on individual organs. However, diabetes is a systemic disease affecting multiple tissues in the body. Therefore, we have developed a technique to simultaneously measure metabolism in both the heart and liver during a single acquisition...
October 25, 2016: NMR in Biomedicine
Shun-Jin Hu, Bing Shu, Hua Jin, Xiao-Feng Li, Jia-Rong Mao, Ke-Jun Ren, Lei Gao, Li Yang, You-Wan Wu, Yong-Jun Wang
OBJECTIVE: To evaluate the renal protective effect of Tangshenkang Granule () in a rat model of diabetic nephropathy (DN). METHODS: Forty male Sprague-Dawley rats were randomly divided into control, DN, Tangshenkang and benazepril groups. DN model was established in the rats of DN, Tangshenkang and benazepril groups. Tangshenkang Granule solution and benazepril hydrochloride solution were intragastrically administered daily to the rats in the Tangshenkang and benazepril groups for 8 weeks, respectively...
October 24, 2016: Chinese Journal of Integrative Medicine
Anne Julie Overgaard, Simranjeet Kaur, Flemming Pociot
Metabolomics is the snapshot of all detectable metabolites and lipids in biological materials and has potential in reflecting genetic and environmental factors contributing to the development of complex diseases, such as type 1 diabetes. The progression to seroconversion to development of type 1 diabetes has been studied using this technique, although in relatively small cohorts and at limited time points. Overall, three observations have been consistently reported; phospholipids at birth are lower in children developing type 1 diabetes early in childhood, methionine levels are lower in children at seroconversion, and triglycerides are increased at seroconversion and associated to microbiome diversity, indicating an association between the metabolome and microbiome in type 1 diabetes progression...
December 2016: Current Diabetes Reports
Shigemasa Tani, Ken Nagao, Tsukasa Yagi, Wataru Atsumi, Atsushi Hirayama
BACKGROUND: We hypothesized that the additional administration of eicosapentaenoic acid (EPA) in patients with stable coronary artery disease (CAD) receiving statin has the potential to lower the serum pentraxin 3 (PTX3) level, an indicator of plaque stabilization. METHODS: We randomly assigned CAD patients already receiving statin therapy to an EPA group (1800 mg/day, n = 53) or control group (n = 53). RESULTS: No significant difference was found in the change in the plasma PTX3 level between the groups...
October 24, 2016: American Journal of Cardiovascular Drugs: Drugs, Devices, and Other Interventions
Jun Woo Kim, Sang Hoo Park, Yoojin Kim, Minji Im, Heon-Seok Han
PURPOSE: The prevalence rates of metabolic syndrome (MetS) and percentile distribution of insulin resistance (IR) among Korean children and adolescents were investigated. The cutoff values of IR were calculated to identify high-risk MetS groups. METHODS: Data from 3,313 Korean subjects (1,756 boys and 1,557 girls, aged 10-18 years) were included from the Korean National Health and Nutrition Examination Survey conducted during 2007-2010. Three different sets of criteria for MetS were used...
September 2016: Annals of Pediatric Endocrinology & Metabolism
Vasanthi Jayakumar, Shiek S S J Ahmed, Kesavarao Kumar Ebenezar
To investigate the effect of curcumin on the multivariate and docking analysis on peroxisome proliferator activated receptor-γ, the rats were fed with high fructose diet (Group 2) to induce insulin resistance and curcumin was co-administered orally (Group 4) for a period of 8 weeks and measured the biochemical parameters in blood, kidney and liver tissues. The results showed a significant (p ≤ 0.05) increase in the level of creatinine, glucose, insulin, low density lipoprotein, total cholesterol, triglyceride, urea, uric acid, very low density lipoprotein and decreased albumin, high density lipoprotein and total protein level in the blood of Group 2 when compared with Group 1 control rats...
2016: SpringerPlus
David W Miller, Zoe Prosser, Edward Y W Chee, Christian F Hansen, Frank R Dunshea, Bruce P Mullan, John R Pluske
BACKGROUND: Three experiments were conducted to examine the overall hypothesis that addition of medium chain triglycerides (MCT) and cysteamine hydrochloride (CSH) into the diets of young and growing pigs would stimulate the endogenous somatotropic axis to improve growth and performance. RESULTS: In Experiment 1, weaner pigs were given either a 5 d dietary supplement of 5 % MCT (n = 8) or a control diet (n = 8). MCT increased the plasma concentration of growth hormone (GH; P < 0...
2016: Journal of Animal Science and Biotechnology
Ramin Heshmat, Gita Shafiee, Mostafa Qorbani, Fatemeh Azizi-Soleiman, Shirin Djalalinia, Mohammad Esmaeil Motlagh, Gelayol Ardalan, Zeinab Ahadi, Omid Safari, Saeid Safiri, Roya Kelishadi
Introduction: Current evidence suggests that ghrelin could contribute to the development of metabolic syndrome (MetS) in adults, but limited experience exists in adolescents. This study aims to explore the association of ghrelin levels with the MetS components among Iranian adolescents. Methods: In this case-control study, 32 adolescents with MetS and 148 healthy controls were selected randomly from the childhood and Adolescence Surveillance and Prevention of Adult Non communicable disease (CASPIAN-III) study...
2016: Journal of Cardiovascular and Thoracic Research
Zoe Daniel, Angelina Swali, Richard Emes, Simon C Langley-Evans
BACKGROUND: Fetal exposure to a maternal low protein diet during rat pregnancy is associated with hypertension, renal dysfunction and metabolic disturbance in adult life. These effects are present when dietary manipulations target only the first half of pregnancy. It was hypothesised that early gestation protein restriction would impact upon placental gene expression and that this may give clues to the mechanism which links maternal diet to later consequences. METHODS: Pregnant rats were fed control or a low protein diet from conception to day 13 gestation...
2016: Genes & Nutrition
Sae-Rom Yoo, Mee-Young Lee, Byoung-Kab Kang, Hyeun-Kyoo Shin, Soo-Jin Jeong
Soshiho-tang (SST; sho-saiko-to in Japanese; xiaochaihu-tang in Chinese) has generally been used to improve liver fibrosis- and cirrhosis-related symptoms in traditional Korean medicine. Although many studies have investigated the pharmacological properties of SST, its antiobesity effect has not been elucidated. Thus, our present study was carried out to evaluate the antiobesity effect of SST using a high fat diet- (HFD) induced obese mouse model and 3T3-L1 adipose cells. C57BL/6J mice were randomly divided into four groups (n = 6/group), normal diet (ND), HFD-fed group, and HFD- and SST-fed groups (S200: 200 mg/kg of SST; S600: 600 mg/kg of SST) and given HFD with or without SST extract for 8 weeks...
2016: Evidence-based Complementary and Alternative Medicine: ECAM
Akihiko Katayama, Nobuyuki Miyatake, Hiroyuki Nishi, Kazuhiro Ujike, Hiroo Hashimoto, Risa Kurato, Kiichi Koumoto
In a longitudinal study, we examined the link between changes in physical activity and changes in health-related quality of life (HRQOL) in patients on chronic hemodialysis. Seventy-one patients (43 males, 28 females; aged 70.9±10.6 years) on chronic hemodialysis in September 2013 were enrolled. The data of the 43 patients whose complete measurements were taken again in September 2014 were used for the longitudinal analysis. Clinical parameters including age, height, dry weight, duration of hemodialysis, blood pressure (BP), blood triglyceride and HDL cholesterol levels, physical activity, and HRQOL were evaluated...
October 2016: Acta Medica Okayama
Ardashel Latsuzbaia, Vincent W V Jaddoe, Albert Hofman, Oscar H Franco, Janine F Felix
Lipid concentrations are heritable traits. Recently, the number of known genetic loci associated with lipid levels in adults increased from 95 to 157. The effects of these 157 loci have not been tested in children. Considering that lipid levels track from childhood to adulthood, we studied whether these variants already affect lipid concentrations in a large group of 2645 children with a median age of 6.0 years (95% range 5.7-7.3) from the population-based Generation R Study. 28 single nucleotide polymorphisms (SNPs) associated with triglycerides (TG), 39 SNPs associated with total cholesterol (TC), 28 SNPs associated with low density lipoprotein cholesterol (LDL-C), and 56 SNPs associated with high density lipoprotein cholesterol (HDL-C) were analyzed individually and combined into genetic risk scores...
October 24, 2016: Journal of Lipid Research
Johanne M Justesen, Ehm A Andersson, Kristine H Allin, Camilla H Sandholt, Torben Jørgensen, Allan Linneberg, Marit E Jørgensen, Torben Hansen, Oluf Pedersen, Niels Grarup
Blood concentrations of triglycerides are influenced by genetic factors, as well as a number of environmental factors including adiposity and glucose homeostasis. The aim to investigate the association between a weighted serum triglyceride genetic risk score (wGRS) and changes in fasting serum triglyceride level over five years and to test whether the effect of the wGRS was modified by 5-year changes of adiposity, insulin resistance and lifestyle factors. A total of 3,474 non-diabetic individuals from the Danish Inter99 cohort participated in both the baseline and 5-year follow-up physical examinations and had information on the wGRS comprising 39 genetic variants...
October 24, 2016: Journal of Lipid Research
Chao-Qiang Lai, Mary K Wojczynski, Laurence D Parnell, Bertha A Hidalgo, Marguerite Ryan Irvin, Stella Aslibekyan, Michael A Province, Devin M Absher, Donna K Arnett, Jose M Ordovas
Postprandial lipemia (PPL), the increased plasma triglyceride (TG) concentration after consuming a high-fat meal, is an independent risk factor for cardiovascular disease (CVD). Individual responses to a meal high in fat vary greatly, depending on genetic and lifestyle factors. However, only a few loci have been associated with TG-PPL response. Heritable epigenomic changes may be significant contributors to the unexplained inter-individual PPL variability. We conducted an epigenome-wide association study (EWAS) on 979 subjects with DNA methylation measured from CD4+ T cells, who were challenged with a high-fat meal as a part of the Genetics of Lipid Lowering Drugs and Diet Network study...
October 24, 2016: Journal of Lipid Research
Mehrnaz Riazian, Elnaz Khorrami, Elham Alipoor, Sina Moradmand, Mehdi Yaseri, Mohammad Javad Hosseinzadeh-Attar
BACKGROUND: Apelin, the endogenous ligand of orphan receptor APJ (gene symbol APLNR), is an adipokine that was suggested to have a direct correlation with obesity. This peptide might play a role in obesity-related disorders, especially in the cardiovascular system. Currently, few data are available on levels and potential metabolic functions of apelin in different cardiac diseases including atrial fibrillation (AF) and coronary artery disease (CAD), which have common underlying pathophysiological mechanisms...
October 2016: American Journal of the Medical Sciences
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