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CPT1A

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https://www.readbyqxmd.com/read/28430821/dietary-dha-epa-ratio-affected-tissue-fatty-acid-profiles-antioxidant-capacity-hematological-characteristics-and-expression-of-lipid-related-genes-but-not-growth-in-juvenile-black-seabream-acanthopagrus-schlegelii
#1
Min Jin, Óscar Monroig, You Lu, Ye Yuan, Yi Li, Liyun Ding, Douglas R Tocher, Qicun Zhou
An 8-week feeding trial was conducted to investigate the effects of dietary docosahexaenoic to eicosapentaenoic acid ratio (DHA/EPA) on growth performance, fatty acid profiles, antioxidant capacity, hematological characteristics and expression of some lipid metabolism related genes of juvenile black seabream (Acanthopagrus schlegelii) of initial weight 9.47 ± 0.03 g. Five isonitrogenous and isolipidic diets (45% crude protein and 14% crude lipid) were formulated to contain graded DHA/EPA ratios of 0.65, 1...
2017: PloS One
https://www.readbyqxmd.com/read/28412387/germ-cells-regulate-3-hydroxybutyrate-production-in-rat-sertoli-cells
#2
Mariana Regueira, Gustavo Marcelo Rindone, María Noel Galardo, Eliana Herminia Pellizzari, Selva Beatriz Cigorraga, Silvina Beatriz Meroni, María Fernanda Riera
Paracrine regulation of Sertoli cell function by germ cells is an outstanding characteristic of testicular physiology. It has been demonstrated that Sertoli cells produce ketone bodies and that germ cells may use them as energy source. The aim of the study was to analyze a possible regulation by germ cells of ketogenesis in Sertoli cells. Cultures of Sertoli cells (SC) obtained from 31-day-old rats were co-cultured with germ cells (GC). The results presented herein show that the presence of GC stimulated 3-hydroxybutyrate production and increased mRNA levels of two enzymes involved in ketogenesis-carnitine palmitoyltransferase 1a (CPT1a) and mitochondrial 3-hydroxy-3-methylglutaryl-CoA (mHMGCoA) synthase- in SC...
April 12, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28407230/acyl-coa-synthetase-short-chain-family-member-2-acss2-is-regulated-by-srebp-1-and-plays-a-role-in-fatty-acid-synthesis-in-caprine-mammary-epithelial-cells
#3
Huifen Xu, Jun Luo, Gongzhen Ma, Xueying Zhang, Dawei Yao, Ming Li, Juan J Loor
Sterol regulatory element binding protein 1 (SREBP-1) is well-known as the master regulator of lipogenesis in rodents. Acyl-CoA synthetase short-chain family member 2 (ACSS2) plays a key role in lipogenesis by synthesizing acetyl-CoA from acetate for lipogenesis. ATP citrate lyase (ACLY) catalyzes the conversion of citrate and coenzyme A to acetyl-CoA, hence, it is also important for lipogenesis. Although ACSS2 function in cancer cells has been elucidated, its essentiality in ruminant mammary lipogenesis is unknown...
April 13, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28397225/-clinical-features-and-genetic-analysis-of-a-case-with-carnitine-palmitoyltransferase-1a-deficiency
#4
Dong Cui, Yuhui Hu, Dan Shen, Gen Tang, Min Zhang, Jing Duan, Pengqiang Wen, Jianxiang Liao, Dongli Ma, Shuli Chen
OBJECTIVE: To analyze the clinical and molecular features of a child with carnitine palmitoyltransferase 1A (CPT1A) deficiency. METHODS: Clinical data of the child was collected. Blood acylcarnitine was determined with tandem mass spectrometry. DNA was extracted from the child and his parents. All exons and flanking regions of the CPT1A gene were analyzed by PCR and Sanger sequencing. RESULTS: Analysis showed that the patient carried compound heterozygous mutations c...
April 10, 2017: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/28380415/anti-steatotic-and-anti-inflammatory-effects-of-hovenia-dulcis-thunb-extracts-in-chronic-alcohol-fed-rats
#5
Ra-Yeong Choi, Moon-Jae Woo, Ju Ri Ham, Mi-Kyung Lee
The anti-steatotic and anti-inflammatory effects of fruit water extract (FW) and seed ethanol extract (SE) of Hovenia dulcis Thunb. in chronic alcohol-fed rats were investigated. Rats were fed a liquid diet containing 36% calories from alcohol and orally administered FW or SE (300 and 500mg/kg/day). Both FW and SE reduced hepatic lipid contents and droplets, serum lipid concentration and inflammatory markers (hs-CRP, TNF-α and IL-6) levels compared with the alcohol control group. Alcohol led to significant decreases in the hepatic fatty acid oxidative gene (Ppargc1a, Cpt1a and Acsl1) levels, while it significantly increased the Myd88 and Tnfa gene levels...
April 2, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28375178/are-mirna-103-mirna-107-and-mirna-122-involved-in-the-prevention-of-liver-steatosis-induced-by-resveratrol
#6
Ana Gracia, Alfredo Fernández-Quintela, Jonatan Miranda, Itziar Eseberri, Marcela González, María P Portillo
The aim of the present study was to determine whether the reduction in liver fat previously observed in our laboratory in a cohort of rats which had been fed an obesogenic diet was mediated by changes in the expression of microRNA (miRNA)-103-3p, miRNA-107-3p and miRNA-122-5p, which represent 70% of total miRNAs in the liver, as well as in their target genes. The expression of the three analysed miRNAs was reduced in rats treated with resveratrol. A reduction in sterol-regulatory element binding protein 1 (SREBP1) and an increase in carnitine palmitoyltransferase 1a (CPT1a) were observed in resveratrol-treated rats...
April 4, 2017: Nutrients
https://www.readbyqxmd.com/read/28369098/functional-relevance-for-associations-between-osteoporosis-and-genetic-variants
#7
Kun Liu, Li-Jun Tan, Peng Wang, Xiang-Ding Chen, Li-Hua Zhu, Qin Zeng, Yuan Hu, Hong-Wen Deng
Osteoporosis is characterized by increased bone loss and deterioration of bone microarchitecture, which will lead to reduced bone strength and increased risk of fragility fractures. Previous studies have identified many genetic loci associated with osteoporosis, but functional mechanisms underlying the associations have rarely been explored. In order to explore the potential molecular functional mechanisms underlying the associations for osteoporosis, we performed integrative analyses by using the publically available datasets and resources...
2017: PloS One
https://www.readbyqxmd.com/read/28356434/the-growth-promoting-effect-of-dietary-nucleotides-in-fish-is-associated-with-an-intestinal-microbiota-mediated-reduction-in-energy-expenditure
#8
Xiaoze Guo, Chao Ran, Zhen Zhang, Suxu He, Min Jin, Zhigang Zhou
Background: Nucleotides have been used as functional nutrients to improve the growth and health of animals, including fish. The mechanism involved in the growth-promotion effect of nucleotides is still unclear.Objective: We investigated the bioenergetic mechanism underlying the growth-promotion effect of nucleotides in zebrafish and the associated roles played by the intestinal microbiota.Methods: Larval zebrafish were fed a control or a 0.1% mixed nucleotides-supplemented diet for 2 wk. Standard metabolic rate, the minimal rate of energy expenditure by animals at rest, was evaluated by oxygen consumption with the use of a respirometer...
March 29, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28333970/-epicatechin-3-o-%C3%AE-d-allopyranoside-from-davallia-formosana-prevents-diabetes-and-dyslipidemia-in-streptozotocin-induced-diabetic-mice
#9
Cheng-Hsiu Lin, Jin-Bin Wu, Jia-Ying Jian, Chun-Ching Shih
The objective of this study was to evaluate the effects and molecular mechanism of (-)-epicatechin-3-O-β-D-allopyranoside from Davallia formosana (BB) (also known as Gu-Sui-Bu) on type 1 diabetes mellitus and dyslipidemia in streptozotocin (STZ)-induced diabetic mice. This plant was demonstrated to display antioxidant activities and possess polyphenol contents. Diabetic mice were randomly divided into six groups and were given daily oral gavage doses of either BB (at three dosage levels), metformin (Metf) (at 0...
2017: PloS One
https://www.readbyqxmd.com/read/28330968/examination-of-carnitine-palmitoyl-transferase-1-abundance-in-white-adipose-tissue-implications-in-obesity-research
#10
Jaycob D Warfel, Bolormaa Vandanmagsar, Olga S Dubuisson, Sydney M Hodgeson, Carrie M Elks, Eric Ravussin, Randall L Mynatt
Carnitine Palmitoyltransferase 1 (CPT1) is essential for the transport of long chain fatty acids into the mitochondria for oxidation. Recently, it was reported that decreased CPT1b mRNA in adipose tissue was a contributing factor for obesity in rats. We therefore closely examined the expression level of Cpt1 in adipose tissue from mice, rats, and humans. Cpt1a is the predominate isoform in adipose tissue from all three species. Rat white adipose tissue has a moderate amount of Cpt1b mRNA, but it is very minor compared to Cpt1b expression in muscle...
March 22, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28315807/association-of-cyp2c9-cyp2a6-acsm2a-and-cpt1a-gene-polymorphisms-with-adverse-effects-of-valproic-acid-in-chinese-patients-with-epilepsy
#11
Can Wang, Ping Wang, Li-Ping Yang, Jing Pan, Xue Yang, Hong-Ying Ma
OBJECTIVE: To explore the influence of CYP2C9, CYP2A6, ACSM2A, CPT1A gene polymorphisms on valproic acid (VPA) and its role in metabolism-related liver dysfunction in order to guide the clinical safety and rational use of VPA. METHODS: One hundred two patients taking sodium valproate oral solution were genotyped. To assess the genotypes of relevant genes, the CYP2C9 gene was directly sequenced; for polymorphism classification, multiple Long-PCR electrophoresis was conducted for CYP2A6; and imLDR method was used for ACSM2A and CPT1A...
February 27, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28292742/fatty-acid-synthesis-intermediates-represent-novel-noninvasive-biomarkers-of-prostate-cancer-chemoprevention-by-phenethyl-isothiocyanate
#12
Krishna B Singh, Shivendra V Singh
Increased de novo synthesis of fatty acids is a distinctive feature of prostate cancer, which continues to be a leading cause of cancer-related deaths among American men. Therefore, inhibition of de novo fatty acid synthesis represents an attractive strategy for chemoprevention of prostate cancer. We have shown previously that dietary feeding of phenethyl isothiocyanate (PEITC), a phytochemical derived from edible cruciferous vegetables such as watercress, inhibits incidence and burden of poorly-differentiated prostate cancer in Transgenic Adenocarcinoma of Mouse Prostate (TRAMP) model...
March 14, 2017: Cancer Prevention Research
https://www.readbyqxmd.com/read/28239403/lipid-overload-during-gestation-and-lactation-can-independently-alter-lipid-homeostasis-in-offspring-and-promote-metabolic-impairment-after-new-challenge-to-high-fat-diet
#13
Laís Angélica de Paula Simino, Thaís de Fante, Marina Figueiredo Fontana, Fernanda Oliveira Borges, Márcio Alberto Torsoni, Marciane Milanski, Lício Augusto Velloso, Adriana Souza Torsoni
BACKGROUND: Nutritional status in early life is critically involved in the metabolic phenotype of offspring. However the changes triggered by maternal consumption of high-fat diet (HFD) in pre- or postnatal period should be better understood. Here we evaluated whether maternal HFD consumption during gestation and lactation could differently affect liver miR-122 and miR-370 expression leading to metabolic damages observed in offspring. Moreover, we investigate whether early overnutrition program offspring to more harmful response to HFD in later life...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28199134/genetic-control-of-fatty-acid-%C3%AE-oxidation-in-chronic-obstructive-pulmonary-disease
#14
Zhiqiang Jiang, Nelson H Knudsen, Gang Wang, Weiliang Qiu, Zun Zar Chi Naing, Yan Bai, Xingbin Ai, Chih-Hao Lee, Xiaobo Zhou
Bioenergetics homeostasis is important for cells to sustain normal functions and defend against injury. Genetics controls on bioenergetics homeostasis, especially lipid metabolism remain poorly understood in chronic obstructive pulmonary diseases (COPD), the third leading cause of death in the world. Additionally, biological function of most susceptible genes identified from genome-wide association studies (GWAS) in COPD remains unclear. Here, we aim to address 1) how fatty acid oxidation, specifically β-oxidation (FAO), a key lipid metabolism pathway that provides energy to cells, contributes to cigarette smoke (CS)-induced COPD; and 2) whether and how FAM13A (family with sequence similarity 13 member A), a well-replicated COPD GWAS gene, modulates FAO pathway...
February 15, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28197827/phloretin-prevents-high-fat-diet-induced-obesity-and-improves-metabolic-homeostasis
#15
Sary Alsanea, Mingming Gao, Dexi Liu
Reactive oxygen species generated as a by-product in metabolism play a central role in the development of obesity and obesity-related metabolic complications. The objective of the current study is to explore the possibility to block obesity and improve metabolic homeostasis via phloretin, a natural antioxidant product from apple tree leaves and Manchurian apricot. Both preventive and therapeutic activities of phloretin were assessed using a high-fat diet-induced obesity mouse model. Phloretin was injected intraperitoneally twice weekly into regular and obese mice fed a high-fat diet...
February 14, 2017: AAPS Journal
https://www.readbyqxmd.com/read/28194238/epigenome-wide-association-study-ewas-on-lipids-the-rotterdam-study
#16
Kim V E Braun, Klodian Dhana, Paul S de Vries, Trudy Voortman, Joyce B J van Meurs, Andre G Uitterlinden, Albert Hofman, Frank B Hu, Oscar H Franco, Abbas Dehghan
BACKGROUND: DNA methylation is a key epigenetic mechanism that is suggested to be associated with blood lipid levels. We aimed to identify CpG sites at which DNA methylation levels are associated with blood levels of triglycerides, high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and total cholesterol in 725 participants of the Rotterdam Study, a population-based cohort study. Subsequently, we sought replication in a non-overlapping set of 760 participants...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28152052/choline-and-methionine-differentially-alter-methyl-carbon-metabolism-in-bovine-neonatal-hepatocytes
#17
Tawny L Chandler, Heather M White
Intersections in hepatic methyl group metabolism pathways highlights potential competition or compensation of methyl donors. The objective of this experiment was to examine the expression of genes related to methyl group transfer and lipid metabolism in response to increasing concentrations of choline chloride (CC) and DL-methionine (DLM) in primary neonatal hepatocytes that were or were not exposed to fatty acids (FA). Primary hepatocytes isolated from 4 neonatal Holstein calves were maintained as monolayer cultures for 24 h before treatment with CC (61, 128, 2028, and 4528 μmol/L) and DLM (16, 30, 100, 300 μmol/L), with or without a 1 mmol/L FA cocktail in a factorial arrangement...
2017: PloS One
https://www.readbyqxmd.com/read/28139377/cpt1a-methylation-is-associated-with-plasma-adiponectin
#18
S Aslibekyan, A N Do, H Xu, S Li, M R Irvin, D Zhi, H K Tiwari, D M Absher, A R Shuldiner, T Zhang, W Chen, K Tanner, C Hong, B D Mitchell, G Berenson, D K Arnett
BACKGROUND AND AIMS: Adiponectin, an adipose-secreted protein that has been linked to insulin sensitivity, plasma lipids, and inflammatory patterns, is an established biomarker for metabolic health. Despite clinical relevance and high heritability, the determinants of plasma adiponectin levels remain poorly understood. METHODS AND RESULTS: We conducted the first epigenome-wide cross-sectional study of adiponectin levels using methylation data on 368,051 cytosine-phosphate-guanine (CpG) sites in CD4+ T-cells from the Genetics of Lipid Lowering Drugs and Diet Network (GOLDN, n = 991)...
March 2017: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/28125087/carnitine-palmitoyltransferase-1a-p479l-and-infant-death-policy-implications-of-emerging-data
#19
REVIEW
Alison E Fohner, Nanibaa' A Garrison, Melissa A Austin, Wylie Burke
Carnitine palmitoyltransferase 1 isoform A (CPT1A) is a crucial enzyme for the transport of long-chain fatty acids into the mitochondria. The CPT1A p.P479L variant is found in high frequencies among indigenous populations residing on the west and north coasts of Alaska and Canada and in northeast Siberia and Greenland. Epidemiological studies have reported a statistical association between P479L homozygosity and infant death in Alaska Native and Canadian Inuit populations. Here, we review the available evidence about the P479L variant and apply to these data the epidemiological criteria for assessing causal associations...
January 26, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/28121324/lychee-pulp-phenolics-ameliorate-hepatic-lipid-accumulation-by-reducing-mir-33-and-mir-122-expression-in-mice-fed-a-high-fat-diet
#20
Dongxiao Su, Ruifen Zhang, Fangli Hou, Jianwei Chi, Fei Huang, Shijuan Yan, Lei Liu, Yuanyuan Deng, Zhencheng Wei, Mingwei Zhang
Dietary phenolics exhibit hypolipidemic activity by changing lipid metabolism-related microRNA (miRNA) expression. Quercetin 3-O-rutinoside-7-O-α-l-rhamnosidase (quercetin 3-rut-7-rha), rutin and (-)-epicatechin are the main phenolics in lychee (Litchi chinensis Sonn.) pulp. A previous study reported that quercetin 3-rut-7-rha and rutin had hypolipidemic effects. To elucidate these effects and the underlying molecular mechanisms of lychee pulp phenolics (LPPs), the hepatic mRNA and protein expression of lipid metabolism-related genes and their associated miRNAs were measured after ten weeks of treatment with a high-fat diet (HFD) alone or in combination with LPPs...
February 22, 2017: Food & Function
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