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https://www.readbyqxmd.com/read/28429187/curcumin-reverses-the-depressive-like-behavior-and-insulin-resistance-induced-by-chronic-mild-stress
#1
Ji-Duo Shen, Yu Wei, Yu-Jie Li, Jing-Yi Qiao, Yu-Cheng Li
Increasing evidence has demonstrated that patients with depression have a higher risk of developing type 2 diabetes. Insulin resistance has been identified as the key mechanism linking depression and diabetes. The present study established a rat model of depression complicated by insulin resistance using a 12-week exposure to chronic mild stress (CMS) and investigated the therapeutic effects of curcumin. Sucrose intake tests were used to evaluate depressive-like behaviors, and oral glucose tolerance tests (OGTT) and intraperitoneal insulin tolerance tests (IPITT) were performed to evaluate insulin sensitivity...
April 21, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28414056/protective-effects-of-glycyrrhizic-acid-against-non-alcoholic-fatty-liver-disease-in-mice
#2
Xue Sun, Xingping Duan, Changyuan Wang, Zhihao Liu, Pengyuan Sun, Xiaokui Huo, Xiaodong Ma, Huijun Sun, Kexin Liu, Qiang Meng
Non-alcoholic fatty liver disease (NAFLD) has become a predictive factor of death from many diseases. The purpose of the present study is to investigate the protective effect of glycyrrhizic acid (GA), a natural triterpene glycoside, on NAFLD induced by a high-fat diet (HFD) in mice, and further to elucidate the mechanisms underlying GA protection. GA treatment significantly reduced the relative liver weight, serum ALT, AST activities, levels of serum lipid, blood glucose and insulin. GA suppressed lipid accumulation in liver...
April 14, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28397058/clinical-and-biochemical-heterogeneity-between-patients-with-glycogen-storage-disease-type-ia-the-added-value-of-cusum-for-metabolic-control
#3
Fabian Peeks, Thomas A H Steunenberg, Foekje de Boer, M Estela Rubio-Gozalbo, Monique Williams, Rob Burghard, Fabienne Rajas, Maaike H Oosterveer, David A Weinstein, Terry G J Derks
OBJECTIVE: To study heterogeneity between patients with glycogen storage disease type Ia (GSD Ia), a rare inherited disorder of carbohydrate metabolism caused by the deficiency of glucose-6-phosphatase (G6Pase). STUDY DESIGN: Descriptive retrospective study of longitudinal clinical and biochemical data and long-term complications in 20 GSD Ia patients. We included 11 patients with homozygous G6PC mutations and siblings from four families carrying identical G6PC genotypes...
April 10, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/28396610/modulation-of-glucose-metabolism-by-a-natural-compound-from-chloranthus-japonicus-via-activation-of-amp-activated-protein-kinase
#4
Rongkuan Hu, Huan Yan, Xiaoyan Fei, Haiyang Liu, Jiarui Wu
AMP-activated protein kinase (AMPK) is a key sensor and regulator of glucose metabolism. Here, we demonstrated that shizukaol F, a natural compound isolated from Chloranthus japonicus, can activate AMPK and modulate glucose metabolism both in vitro and in vivo. Shizukaol F increased glucose uptake in differentiated C2C12 myotubes by stimulating glucose transporter-4 (GLUT-4) membraned translocation. Treatment of primary mouse hepatocytes with shizukaol F decreased the expression of phosphoenolpyruvate carboxykinase 2 (PEPCK), glucose-6-phosphatase (G6Pase) and suppressed hepatic gluconeogenesis...
April 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28392962/anti-diabetic-effects-of-an-ethanol-extract-of-cassia-abbreviata-stem-bark-on-diabetic-rats-and-possible-mechanism-of-its-action-anti-diabetic-properties-of-cassia-abbreviata
#5
Keagile Bati, Tebogo Elvis Kwape, Padmaja Chaturvedi
OBJECTIVES: This study aimed to evaluate the hypoglycemic effects of an ethanol extract of Cassia abbreviata (ECA) bark and the possible mechanisms of its action in diabetic albino rats. METHODS: ECA was prepared by soaking the powdered plant material in 70% ethanol. It was filtered and made solvent-free by evaporation on a rotary evaporator. Type 2 diabetes was induced in albino rats by injecting 35 mg/kg body weight (bw) of streptozotocin after having fed the rats a high-fat diet for 2 weeks...
March 2017: Journal of Pharmacopuncture
https://www.readbyqxmd.com/read/28391590/effects-of-heat-stress-on-the-renal-and-branchial-carbohydrate-metabolism-and-antioxidant-system-of-antarctic-fish
#6
Mariana Forgati, Priscila Krebsbach Kandalski, Tatiana Herrerias, Tania Zaleski, Cintia Machado, Maria Rosa Dmengeon Pedreiro Souza, Lucélia Donatti
The objective of the present study was to assess the effect of short-term (2-144 h) heat stress (8 °C) on energy production processes and antioxidant defense systems in the kidneys and gills of Notothenia rossii and Notothenia coriiceps. Heat stress affected energy metabolism and oxidative stress parameters in a time-, tissue-, and species-dependent manner, and gills were more sensitive than kidneys to heat stress. N. rossii kidneys were able to stabilize carbohydrate metabolism after 12 h of heat stress, whereas the glycogen levels in N...
April 8, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28379184/the-effect-of-phloroglucinol-a-component-of-ecklonia-cava-extract-on-hepatic-glucose-production
#7
Ji-Young Yoon, Hojung Choi, Hee-Sook Jun
Phloroglucinol is a phenolic compound that is one of the major compounds in Ecklonia cava (brown alga). It has many pharmacological activities, but its anti-diabetic effect is not yet fully explored. In this study, we investigated the effect of phloroglucinol on the control of blood glucose levels and the regulation of hepatic glucose production. Phloroglucinol significantly improved glucose tolerance in male C57BL/6J mice fed a high fat diet (HFD) and inhibited glucose production in mouse primary hepatocytes...
April 5, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28371117/structural-constraints-and-importance-of-caffeic-acid-moiety-for-anti-hyperglycemic-effects-of-caffeoylquinic-acids-from-chicory
#8
Kimberly M Palatini Jackson, Thirumurugan Rathinasabapathy, Debora Esposito, Slavko Komarnytsky
SCOPE: Chicory (Cichorium intybus L.) is a perennial herb often consumed as a vegetable, whereas the ground and roasted roots are blended as a coffee substitute. Caffeoylquinic or chlorogenic acids (CQA), the abundant intermediates of lignin biosynthesis in chicory, have been reported to improve glucose metabolism in humans, but the functional group in their structure responsible for this effect has not been yet characterized. METHODS AND RESULTS: Here, we showed that three di-O-caffeoylquinic acids suppressed hepatic glucose production in H4IIE rat hepatoma cells by reducing expression of glucose-6-phosphatase (G6Pase) and phosphoenolpyruvate carboxykinase (PEPCK), two key enzymes that regulate hepatic gluconeogenesis...
April 3, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28343573/metabolic-and-cellular-stress-responses-of-catfish-horabagrus-brachysoma-g%C3%A3-nther-acclimated-to-increasing-temperatures
#9
Rishikesh S Dalvi, Tilak Das, Dipesh Debnath, Sona Yengkokpam, Kartik Baruah, Lalchand R Tiwari, Asim K Pal
We investigated the metabolic and cellular stress responses in an endemic catfish Horabagrus brachysoma acclimated to ambient (26°C), 31, 33 and 36°C for 30 days. After acclimation, fish were sampled to investigate changes in the levels of blood glucose, tissue glycogen and ascorbic acid, activities of enzymes involved in glycolysis (LDH), citric acid cycle (MDH), gluconeogenesis (FBPase and G6Pase), pentose phosphate pathway (G6PDH), protein metabolism (AST and ALT), phosphate metabolism (ACP and ALP) and energy metabolism (ATPase), and HSP70 levels in various tissues...
April 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28331449/cyclin-d1-in-the-liver-role-of-noncanonical-signaling-in-liver-steatosis-and-hormone-regulation
#10
Kelley G Núñez, Janet Gonzalez-Rosario, Paul T Thevenot, Ari J Cohen
BACKGROUND: Cyclin D1 is an important protein for cell cycle progression; however, functions independent of the cell cycle have been described in the liver. Cyclin D1 is also involved in DNA repair, is overexpressed in many cancers, and functions as a proto-oncogene. The lesser-known roles of Cyclin D1, specifically in hepatocytes, impact liver steatosis and hormone regulation in the liver. METHODS: A comprehensive search of PubMed was conducted using the keywords Cyclin D1, steatosis, lipogenesis, and liver transplantation...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/28302863/transfer-of-dysbiotic-gut-microbiota-has-beneficial-effects-on-host-liver-metabolism
#11
Simon Nicolas, Vincent Blasco-Baque, Audren Fournel, Jerome Gilleron, Pascale Klopp, Aurelie Waget, Franck Ceppo, Alysson Marlin, Roshan Padmanabhan, Jason S Iacovoni, François Tercé, Patrice D Cani, Jean-François Tanti, Remy Burcelin, Claude Knauf, Mireille Cormont, Matteo Serino
Gut microbiota dysbiosis has been implicated in a variety of systemic disorders, notably metabolic diseases including obesity and impaired liver function, but the underlying mechanisms are uncertain. To investigate this question, we transferred caecal microbiota from either obese or lean mice to antibiotic-free, conventional wild-type mice. We found that transferring obese-mouse gut microbiota to mice on normal chow (NC) acutely reduces markers of hepatic gluconeogenesis with decreased hepatic PEPCK activity, compared to non-inoculated mice, a phenotypic trait blunted in conventional NOD2 KO mice...
March 16, 2017: Molecular Systems Biology
https://www.readbyqxmd.com/read/28280902/ginsenoside-rg5-attenuates-hepatic-glucagon-response-via-suppression-of-succinate-associated-hif-1%C3%AE-induction-in-hfd-fed-mice
#12
Na Xiao, Meng-Die Lou, Yi-Tong Lu, Le-Le Yang, Qun Liu, Baolin Liu, Lian-Wen Qi, Ping Li
AIMS/HYPOTHESIS: Ginsenosides regulate glucose homeostasis. This study investigated the effect of ginsenoside Rg5 (Rg5) on the hepatic glucagon response, focusing on the regulation of metabolism. METHODS: Mice fed a high-fat diet (HFD) showed increased hepatic glucose production (HGP). We observed the effects of Rg5 on hepatic fatty acid oxidation and glucagon response. The regulation of phosphodiesterase (PDE) 4B by succinate was also investigated in hepatocytes...
March 9, 2017: Diabetologia
https://www.readbyqxmd.com/read/28273963/benefits-of-alcohol-on-arsenic-toxicity-in-rats
#13
Purnima Singh, Shubha Ranjan Dutta, Deepak Passi, Jaya Bharti
INTRODUCTION: It has been demonstrated earlier that exposure to ethanol and/or arsenic compounds (such as sodium arsenite) produces toxic effects as shown by both in vitro and in vivo experiments. Chronic exposure of humans to arsenic through drinking water, pesticides or consumption of alcoholic beverages has produced major health problem and concern in recent years. Water being one of the main ingredients for alcohol formation (beer fermentation process) can lead to contamination with arsenic...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28259166/phenolic-compounds-isolated-from-fermented-blueberry-juice-decrease-hepatocellular-glucose-output-and-enhance-muscle-glucose-uptake-in-cultured-murine-and-human-cells
#14
Abir Nachar, Hoda M Eid, Melinda Vinqvist-Tymchuk, Tri Vuong, Wilhelmina Kalt, Chantal Matar, Pierre S Haddad
BACKGROUND: We recently reported that blueberry juice fermented (FJ) with Serratia vaccinii bacterium has antidiabetic activities both in vivo and in vitro. The purpose of this project was to elucidate the effect of FJ on glucose homeostasis in liver and skeletal muscle cells and to identify active fractions/compounds responsible for this effect. METHODS: FJ was fractionated using standard chromatography procedures. Hepatic (H4IIE, HepG2) and skeletal muscle cells (C2C12) were treated with maximum non-toxic concentrations of FJ, fractions and isolated compounds thereof...
March 4, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28218289/type-i-neuregulin1%C3%AE-is-a-novel-local-mediator-to-suppress-hepatic-gluconeogenesis-in-mice
#15
Takatomo Arai, Yumika Ono, Yujiro Arimura, Keimon Sayama, Tomohiro Suzuki, Satoko Shinjo, Mai Kanai, Shin-Ichi Abe, Kentaro Semba, Nobuhito Goda
Neuregulin1 is an epidermal growth factor (EGF)-like domain-containing protein that has multiple isoforms and functions as a local mediator in the control of various cellular functions. Here we show that type I isoform of neuregulin1 with an α-type EGF-like domain (Nrg1α) is the major isoform in mouse liver and regulates hepatic glucose production. Forced expression of Nrg1α in mouse liver enhanced systemic glucose disposal and decreased hepatic glucose production with reduced fasting blood glucose levels...
February 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28173748/susceptibility-to-type-2-diabetes-may-be-modulated-by-haplotypes-in-g6pc2-a-target-of-positive-selection
#16
Nasser M Al-Daghri, Chiara Pontremoli, Rachele Cagliani, Diego Forni, Majed S Alokail, Omar S Al-Attas, Shaun Sabico, Stefania Riva, Mario Clerici, Manuela Sironi
BACKGROUND: The endoplasmic reticulum enzyme glucose-6-phosphatase catalyzes the common terminal reaction in the gluconeogenic/glycogenolytic pathways and plays a central role in glucose homeostasis. In most mammals, different G6PC subunits are encoded by three paralogous genes (G6PC, G6PC2, and G6PC3). Mutations in G6PC and G6PC3 are responsible for human mendelian diseases, whereas variants in G6PC2 are associated with fasting glucose (FG) levels. RESULTS: We analyzed the evolutionary history of G6Pase genes...
February 7, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28112007/the-fatty-acid-rich-fraction-of-eruca-sativa-rocket-salad-leaf-extract-exerts-antidiabetic-effects-in-cultured-skeletal-muscle-adipocytes-and-liver-cells
#17
Mona H Hetta, Asmaa I Owis, Pierre S Haddad, Hoda M Eid
CONTEXT: Eruca sativa Mill. (Brassicaceae), commonly known as rocket salad, is a popular leafy-green vegetable with many health benefits. OBJECTIVE: To evaluate the antidiabetic activities of this plant in major insulin-responsive tissues. MATERIALS AND METHODS: Five E. sativa leaf extracts of varying polarity were prepared (aqueous extract, 70% and 95% ethanol extracts, the n-hexane-soluble fraction of the 95% ethanol extract (ES3) and the defatted 95% ethanol extract)...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28096054/glycogen-storage-disease-type-ia-mice-with-less-than-2-of-normal-hepatic-glucose-6-phosphatase-%C3%AE-activity-restored-are-at-risk-of-developing-hepatic-tumors
#18
Goo-Young Kim, Young Mok Lee, Joon Hyun Kwon, Jun-Ho Cho, Chi-Jiunn Pan, Matthew F Starost, Brian C Mansfield, Janice Y Chou
Glycogen storage disease type Ia (GSD-Ia), characterized by impaired glucose homeostasis and chronic risk of hepatocellular adenoma (HCA) and carcinoma (HCC), is caused by a deficiency in glucose-6-phosphatase-α (G6Pase-α or G6PC). We have previously shown that G6pc-/- mice receiving gene transfer mediated by rAAV-G6PC, a recombinant adeno-associated virus (rAAV) vector expressing G6Pase-α, and expressing 3-63% of normal hepatic G6Pase-α activity maintain glucose homeostasis and do not develop HCA/HCC. However, the threshold of hepatic G6Pase-α activity required to prevent tumor formation remained unknown...
March 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/28076749/epigenetic-changes-of-hepatic-glucocorticoid-receptor-in-sheep-male-offspring-undernourished-in-utero
#19
Stella Chadio, Basiliki Kotsampasi, Stylliani Taka, Emmanouil Liandris, Nikolaos Papadopoulos, Elias Plakokefalos
The aim of this study was to characterise the effects of maternal undernutrition during gestation on hepatic gluconeogenic enzyme gene expression and to determine whether such effects are mediated through epigenetic changes in the glucocorticoid receptor (GR). Pregnant ewes were fed a 50% nutrient-restricted diet from Day 0 to 30 (R1) or from Day 31 to 100 of gestation (R2) or a 100% diet throughout gestation (Control). After parturition lambs were fed to appetite. At 10 months of age offspring were euthanised and livers were removed...
January 12, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28002512/pharmacotoxicological-screening-on-new-derivatives-of-beta-phenylethylamine-potential-agonists-of-beta3-adrenergic-receptors
#20
Simona Negreş, Anca Zanfirescu, Floriana Elvira Ionică, Elena Moroşan, Bruno Ştefan Velescu, Oana Cristina Şeremet, Cristina Elena Zbârcea, Emil Ştefănescu, Manuella Militaru, Andreea LetiŢia Arsene, Denisa Marilena Margină, Livia Uncu, Corina Scutari, Cornel ChiriŢă
BACKGROUND AND AIMS: Beta3-adrenergic receptors (beta3-ARs) have been initially characterized in 1989. Afterwards, their tissue distribution was established: white and brown adipose tissue, central nervous system, myocardium (atrial and ventricular), blood vessels, smooth gastrointestinal muscles (stomach, small intestine, colon), gallbladder, urinary bladder, prostate, skeletal muscles. Non-clinical trials have demonstrated the major implication of beta3-ARs in glucose metabolism, implicitly, in insulin release, and also in obesity...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
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