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https://www.readbyqxmd.com/read/28771253/health-effects-of-the-cpt1a-p479l-variant-responsible-public-health-policy
#1
David M Koeller, Matt Hirschfeld, Stephanie Birch, Thalia Wood, Rebekah Morisse, Sabra Anckner, Bradford D Gessner
No abstract text is available yet for this article.
August 3, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/28748224/utility-of-genetic-testing-for-confirmation-of-abnormal-newborn-screening-in-disorders-of-long-chain-fatty-acids-a-missed-case-of-carnitine-palmitoyltransferase-1a-cpt1a-deficiency
#2
Leah Dowsett, Lauren Lulis, Can Ficicioglu, Sanmati Cuddapah
An 18-month-old male was evaluated after presenting with disproportionately elevated liver transaminases in the setting of acute gastroenteritis. He had marked hepatomegaly on physical exam that was later confirmed with an abdominal ultrasound. Given this clinical picture, suspicion for a fatty acid oxidation disorder was raised. Further investigation revealed that his initial newborn screen was positive for carnitine palmitoyltransferase 1A (CPT1A) deficiency-a rare autosomal recessive disorder of long-chain fatty acid oxidation...
June 2017: International Journal of Neonatal Screening
https://www.readbyqxmd.com/read/28744221/sexual-dimorphism-in-the-age-induced-insulin-resistance-liver-steatosis-and-adipose-tissue-function-in-rats
#3
Francisco Garcia-Carrizo, Teresa Priego, Nara Szostaczuk, Andreu Palou, Catalina Picó
Age-linked metabolic disturbances, such as liver steatosis and insulin resistance, show greater prevalence in men than in women. Thus, our aim was to analyze these sex-related differences in male and female Wistar rats (aged 26 days and 3, 7, and 14 months), and to assess their potential relationship with alterations in the capacity of adipose tissue expansion and the dysregulation of the main adipokines produced by the adipose tissue, leptin and adiponectin. Adiposity-related parameters, blood parameters, the expression of genes related to expandability and inflammation (WAT), lipid metabolism (liver), and leptin and insulin signaling (both tissues) were measured...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28722145/dendrobium-nobile-lindl-alkaloids-regulate-metabolism-gene-expression-in-livers-of-mice
#4
Yun-Yan Xu, Ya-Sha Xu, Yuan Wang, Qin Wu, Yuan-Fu Lu, Jie Liu, Jing-Shan Shi
OBJECTIVES: In our previous studies, Dendrobium nobile Lindl. alkaloids (DNLA) has been shown to have glucose-lowering and antihyperlipidaemia effects in diabetic rats, in rats fed with high-fat diets, and in mice challenged with adrenaline. This study aimed to examine the effects of DNLA on the expression of glucose and lipid metabolism genes in livers of mice. METHODS: Mice were given DNLA at doses of 10-80 mg/kg, po for 8 days, and livers were removed for total RNA and protein isolation to perform real-time RT-PCR and Western blot analysis...
July 19, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28706492/lower-expression-of-slc27a1-enhances-intramuscular-fat-deposition-in-chicken-via-down-regulated-fatty-acid-oxidation-mediated-by-cpt1a
#5
Fengfang Qiu, Liang Xie, Jing-E Ma, Wen Luo, Li Zhang, Zhe Chao, Shaohao Chen, Qinghua Nie, Zhemin Lin, Xiquan Zhang
Intramuscular fat (IMF) is recognized as the predominant factor affecting meat quality due to its positive correlation with tenderness, juiciness, and flavor. Chicken IMF deposition depends on the balance among lipid synthesis, transport, uptake, and subsequent metabolism, involving a lot of genes and pathways, however, its precise molecular mechanisms remain poorly understood. In the present study, the breast muscle tissue of female Wenchang chickens (WC) (higher IMF content, 1.24 in D120 and 1.62 in D180) and female White Recessive Rock chickens (WRR; lower IMF content, 0...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28706214/transcriptome-analysis-of-three-sheep-intestinal-regions-reveals-key-pathways-and-hub-regulatory-genes-of-large-intestinal-lipid-metabolism
#6
Tianle Chao, Guizhi Wang, Zhibin Ji, Zhaohua Liu, Lei Hou, Jin Wang, Jianmin Wang
The large intestine, also known as the hindgut, is an important part of the animal digestive system. Recent studies on digestive system development in ruminants have focused on the rumen and the small intestine, but the molecular mechanisms underlying sheep large intestine metabolism remain poorly understood. To identify genes related to intestinal metabolism and to reveal molecular regulation mechanisms, we sequenced and compared the transcriptomes of mucosal epithelial tissues among the cecum, proximal colon and duodenum...
July 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28696376/lack-of-additive-effects-of-resveratrol-and-energy-restriction-in-the-treatment-of-hepatic-steatosis-in-rats
#7
Iñaki Milton-Laskibar, Leixuri Aguirre, Alfredo Fernández-Quintela, Anabela P Rolo, João Soeiro Teodoro, Carlos M Palmeira, María P Portillo
The aims of the present study were to analyze the effect of resveratrol on liver steatosis in obese rats, to compare the effects induced by resveratrol and energy restriction and to research potential additive effects. Rats were initially fed a high-fat high-sucrose diet for six weeks and then allocated in four experimental groups fed a standard diet: a control group, a resveratrol-treated group, an energy restricted group and a group submitted to energy restriction and treated with resveratrol. We measured liver triacylglycerols, transaminases, FAS, MTP, CPT1a, CS, COX, SDH and ATP synthase activities, FATP2/FATP5, DGAT2, PPARα, SIRT1, UCP2 protein expressions, ACC and AMPK phosphorylation and PGC1α deacetylation...
July 11, 2017: Nutrients
https://www.readbyqxmd.com/read/28671672/deregulation-of-micrornas-mediated-control-of-carnitine-cycle-in-prostate-cancer-molecular-basis-and-pathophysiological-consequences
#8
A Valentino, A Calarco, A Di Salle, M Finicelli, S Crispi, R A Calogero, F Riccardo, A Sciarra, A Gentilucci, U Galderisi, S Margarucci, G Peluso
Cancer cells reprogram their metabolism to maintain both viability and uncontrolled proliferation. Although an interplay between the genetic, epigenetic and metabolic rewiring in cancer is beginning to emerge, it remains unclear how this metabolic plasticity occurs. Here, we report that in prostate cancer cells (PCCs) microRNAs (miRNAs) greatly contribute to deregulation of mitochondrial fatty acid (FA) oxidation via carnitine system modulation. We provide evidence that the downregulation of hsa-miR-124-3p, hsa-miR-129-5p and hsa-miR-378 induced an increase in both expression and activity of CPT1A, CACT and CrAT in malignant prostate cells...
July 3, 2017: Oncogene
https://www.readbyqxmd.com/read/28647730/qiliqiangxin-attenuates-adverse-cardiac-remodeling-after-myocardial-infarction-in-ovariectomized-mice-via-activation-of-ppar%C3%AE
#9
Shutong Shen, Huimin Jiang, Yihua Bei, Jialiang Zhang, Haifeng Zhang, Hongsheng Zhu, Chenlin Zhang, Wenming Yao, Cong Wei, Hongcai Shang, Xinli Li
BACKGROUND/AIMS: This study was designed to investigate the therapeutic effect of traditional Chinese medication Qiliqiangxin (QLQX) on adverse cardiac remodeling after myocardial infarction (MI) in bilateral ovariectomized (OVX) female mice. METHODS: Eight-week old female C57BL/6 mice were operated to ligate the left anterior descending coronary artery seven days after bilateral ovariectomy and were orally administered either QLQX or vehicle. 21 days after ligation, echocardiography was performed to evaluate the heart function of all mice...
June 23, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28636830/attenuation-of-hepatic-steatosis-by-purple-sweet-potato-colour-is-associated-with-blocking-src-erk-c-ebp%C3%AE-signalling-in-high-fat-diet-treated-mice
#10
Xin Wang, Zi-Feng Zhang, Gui-Hong Zheng, Ai-Min Wang, Chun-Hui Sun, Su-Ping Qin, Juan Zhuang, Jun Lu, Dai-Fu Ma, Yuan-Lin Zheng
Our previous work showed that purple sweet potato colour (PSPC), a class of naturally occurring anthocyanins, effectively improved hepatic glucose metabolic dysfunction in high-fat-diet (HFD)-treated mice. This study investigated the effects of PSPC on HFD-induced hepatic steatosis and the signalling events associated with these effects. Mice were divided into 4 groups: control group, HFD group, HFD+PSPC group, and PSPC group. PSPC was administered daily for 20 weeks at oral doses of 700 mg/(kg·day)(-1)). Our results showed that PSPC significantly improved obesity and related metabolic parameters, as well as liver injury in HFD-treated mice...
June 21, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28611031/cpt1a-missense-mutation-associated-with-fatty-acid-metabolism-and-reduced-height-in-greenlanders
#11
Line Skotte, Anders Koch, Victor Yakimov, Sirui Zhou, Bolette Søborg, Mikael Andersson, Sascha W Michelsen, Johan E Navne, Jacqueline M Mistry, Patrick A Dion, Michael L Pedersen, Malene L Børresen, Guy A Rouleau, Frank Geller, Mads Melbye, Bjarke Feenstra
BACKGROUND: Inuit have lived for thousands of years in an extremely cold environment on a diet dominated by marine-derived fat. To investigate how this selective pressure has affected the genetic regulation of fatty acid metabolism, we assessed 233 serum metabolic phenotypes in a population-based sample of 1570 Greenlanders. METHODS AND RESULTS: Using array-based and targeted genotyping, we found that rs80356779, a p.Pro479Leu variant in CPT1A, was strongly associated with markers of n-3 fatty acid metabolism, including degree of unsaturation (P=1...
June 2017: Circulation. Cardiovascular Genetics
https://www.readbyqxmd.com/read/28587208/xyloketal-b-attenuates-fatty-acid-induced-lipid-accumulation-via-the-srebp-1c-pathway-in-nafld-models
#12
Youying Zhang, Tian Meng, Ling Zuo, Yu Bei, Qihao Zhang, Zhijian Su, Yadong Huang, Jiyan Pang, Qi Xiang, Hongtu Yang
The goal of this study was to examine the effects of xyloketal B on nonalcoholic fatty liver disease (NAFLD) and to explore the molecular mechanisms underlying its effects in both in vivo and in vitro models. We discovered an association between xyloketal B and the sterol regulatory element-binding protein-1c (SREBP-1c) signaling pathway, which is related to lipid metabolism. Mice were dosed with xyloketal B (5, 10 and 20 mg/kg/d) and atorvastatin (15 mg/kg/d) via intraperitoneal injection once daily for 40 days after being fed a high fat diet plus 10% high fructose liquid (HFD+HFL) for 8 weeks...
June 3, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28580300/resveratrol-attenuates-triglyceride-accumulation-associated-with-upregulation-of-sirt1-and-lipoprotein-lipase-in-3t3-l1-adipocytes
#13
Haruki Imamura, Daiji Nagayama, Noriko Ishihara, Syo Tanaka, Rena Watanabe, Yasuhiro Watanabe, Yuta Sato, Takashi Yamaguchi, Noriko Ban, Hidetoshi Kawana, Masahiro Ohira, Kei Endo, Atsuhito Saiki, Kohji Shirai, Ichiro Tatsuno
AIM: We aimed to investigate the effect of resveratrol (Rsv) on expression of genes regulating triglyceride (TG) accumulation and consumption in differentiated 3T3-L1 preadipocytes. METHODS: 3T3-L1 preadipocytes were cultured in DMEM supplemented with 10% fetal calf serum. Upon reaching confluence, cells were induced to differentiate for 4 days, cultured for 10 days for TG accumulation, and then incubated with Rsv (0, 25 or 50 μM) for 3 days. TG accumulation was analyzed by Oil Red-O staining...
September 2017: Molecular Genetics and Metabolism Reports
https://www.readbyqxmd.com/read/28573069/combination-curcumin-and-vitamin-e-treatment-attenuates-diet-induced-steatosis-in-hfe-mice
#14
Mandy Heritage, Lesley Jaskowski, Kim Bridle, Catherine Campbell, David Briskey, Laurence Britton, Linda Fletcher, Luis Vitetta, V Nathan Subramaniam, Darrell Crawford
AIM: To investigate the synergistic hepato-protective properties of curcumin and vitamin E in an Hfe(-/-) high calorie diet model of steatohepatitis. METHODS: Hfe(-/-) C57BL/6J mice were fed either a high calorie diet or a high calorie diet with 1 mg/g curcumin; 1.5 mg/g vitamin E; or combination of 1 mg/g curcumin + 1.5 mg/g vitamin E for 20 wk. Serum and liver tissue were collected at the completion of the experiment. Liver histology was graded by a pathologist for steatosis, inflammation and fibrosis...
May 15, 2017: World Journal of Gastrointestinal Pathophysiology
https://www.readbyqxmd.com/read/28528274/angiopoietin-like-8-angptl8-controls-adipocyte-lipolysis-and-phospholipid-composition
#15
Raghavendra Mysore, Gerhard Liebisch, You Zhou, Vesa M Olkkonen, P A Nidhina Haridas
Angiopoietin-like 8 (Angptl8) inhibits lipolysis in the circulation together with Angplt3 and controls post-prandial fat storage in white adipose tissue (WAT). It is strongly induced by insulin in vivo in WAT and in vitro in adipocytes. In this study we addressed the function of Angptl8 in adipocytes by its stable lentivirus-mediated knock-down in 3T3-L1 cells, followed by analyses of triglyceride (TG) storage, lipid droplet (LD) morphology, the cellular lipidome, lipolysis, and gene expression. Depletion of Angptl8 did not drastically affect the adipocyte differentiation of 3T3-L1 cells but resulted in a moderate (18-19%) reduction of stored TGs...
May 18, 2017: Chemistry and Physics of Lipids
https://www.readbyqxmd.com/read/28526951/pyrocincholic-acid-3%C3%AE-o-%C3%AE-d-quinovopyranosyl-28-o-%C3%AE-d-glucopyranoside-suppresses-adipogenesis-and-regulates-lipid-metabolism-in-3t3-l1-adipocytes
#16
Li Peng, Yanting Lu, Yuhui Xu, Jing Hu, Fang Wang, Yumei Zhang, Wenyong Xiong
Obesity is crucially involved in many metabolic diseases, such as type 2 diabetes, cardiovascular disease and cancer. Regulating the number or size of adipocytes has been suggested to be a potential treatment for obesity. In this study, we investigated the effect of pyrocincholic acid 3β-O-β-D-quinovopyranosyl-28-O-β-D-glucopyranoside (PAQG), a 27-nor-oleanolic acid saponin extracted from Metadina trichotoma, on adipogenesis and lipid metabolism in 3T3-L1 adipocytes. The 3T3-L1 pre-adipocytes were incubated with vehicle or PAQG for 6 days in differentiation process...
June 2017: Natural Products and Bioprospecting
https://www.readbyqxmd.com/read/28526869/blocking-of-carnitine-palmitoyl-transferase-1-potently-reduces-stress-induced-depression-in-rat-highlighting-a-pivotal-role-of-lipid-metabolism
#17
Anne Skøttrup Mørkholt, Ove Wiborg, Jette G K Nieland, Søren Nielsen, John Dirk Nieland
Major depressive disorder is a complex and common mental disease, for which the pathology has not been elucidated. The purpose of this study is to provide knowledge about the importance of mitochondrial dysfunction, dysregulated lipid metabolism and inflammation. Mitochondrial carnitine palmitoyl transferase 1a (CPT1a) is a key molecule involved in lipid metabolism and mutations in CPT1a causing reduced function is hypothesized to have a protective role in the development of depression. Moreover, CPT1a is found to be upregulated in suicide patients with history of depression...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28515141/glucagon-induced-extracellular-camp-regulates-hepatic-lipid-metabolism
#18
Sihan Lv, Xinchen Qiu, Jian Li, Jinye Liang, Weida Li, Chao Zhang, Zhenning Zhang, Bing Luan
Hormonal signals help to maintain glucose and lipid homeostasis in the liver during periods of fasting. Glucagon, a pancreas-derived hormone induced by fasting, promotes gluconeogenesis through induction of intracellular cAMP production. Glucagon also stimulates hepatic fatty acid oxidation but the underlying mechanism is poorly characterized. Here we reported that following the acute induction of gluconeogenic genes Glucose 6 phosphatase (G6Pase) and Phosphoenolpyruvate carboxykinase (Pepck) expression through CREB, glucagon triggers a second delayed phase of fatty acid oxidation genes Acyl-coenzyme A oxidase (Aox) and Carnitine palmitoyltransferase 1a (Cpt1a) expression via extracellular cAMP...
May 17, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28512781/developmental-regulation-and-localization-of-carnitine-palmitoyltransferases-cpts-in-rat-brain
#19
Jennifer N Jernberg, Caitlyn E Bowman, Michael J Wolfgang, Susanna Scafidi
While the brain's high energy demands are largely met by glucose, brain is also equipped with the ability to oxidize fatty acids for energy and metabolism. The brain expresses the carnitine palmitoyltransferases (CPTs) that mediate carnitine-dependent entry of long-chain acyl-CoAs into the mitochondrial matrix for β-oxidation - CPT1a and CPT2 located on the outer and inner mitochondrial membranes, respectively. Their developmental profile, regional distribution and activity as well as cell type expression remain unknown...
August 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28496562/epigenetics-of-lipid-phenotypes
#20
Sergi Sayols-Baixeras, Marguerite R Irvin, Donna K Arnett, Roberto Elosua, Stella W Aslibekyan
Dyslipidemia is a well-established risk factor for cardiovascular disease, the main cause of death worldwide. Blood lipid profiles are patterned by both genetic and environmental factors. In recent years, epigenetics has emerged as a paradigm that unifies these influences. In this review, we have summarized the latest evidence implicating epigenetic mechanisms-DNA methylation, histone modification, and regulation by RNAs-in lipid homeostasis. Key findings have emerged in a number of novel epigenetic loci located in biologically plausible genes (e...
October 2016: Current Cardiovascular Risk Reports
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