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https://www.readbyqxmd.com/read/28231695/blood-amino-acids-profile-responding-to-heat-stress-in-dairy-cows
#1
Jiang Guo, Shengtao Gao, Suyu Quan, Yangdong Zhang, Dengpan Bu, Jiaqi Wang
The objective of this experiment was to investigate the effects of heat stress on milk protein and blood amino acid profile in dairy cows. Twelve dairy cows with the similar parity, days in milk and milk yield were randomly divided into two groups with six cows raised in summer and others in autumn, respectively. Constant managerial conditions and diets were maintained during the experiment. Measurements and samples for heat stress and no heat stress were obtained according to the physical alterations of the temperature-humidity index...
February 23, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28230764/cinnamic-acid-and-its-derivatives-mechanisms-for-prevention-and-management-of-diabetes-and-its-complications
#2
REVIEW
Sirichai Adisakwattana
With recent insight into the development of dietary supplements and functional foods, search of effective phytochemical compounds and their mechanisms involved in prevention and management of diabetes and its complications are now being assessed. Cinnamic acid and its derivatives occur naturally in high levels of plant-based foods. Among various biological activities, cinnamic acid and its derivatives are associated with a beneficial influence on diabetes and its complications. The aim of the review is to summarize the potential mechanisms of these compounds for prevention and management of diabetes and its complications...
February 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28229636/exercise-partially-reverses-the-inhibitory-effect-of-caffeine-on-liver-gluconeogenesis-in-type-1-diabetic-rats-with-hypoglycemia
#3
E H Gilglioni, C M Ghuidotti, V R Vilela, C Bataglini, J P Furlan, J A Berti, Mmd Pedrosa, Vaf Godoi
The purpose was to determine the possible effects of exercise and/or caffeine on hypoglycemia and liver gluconeogenesis in diabetic rats. These were divided into four subgroups: (a) intraperitoneal insulin only, (b) exercise bout before insulin, (c) caffeine after insulin, and (d) exercise bout before and caffeine after insulin. The marked glycemic drop 45 min after insulin (0 min = 229.00, 45 min = 75.75) was considerably reduced (p < 0.05) by caffeine or exercise (45 min: exercise = 127...
September 2016: Physiol Int
https://www.readbyqxmd.com/read/28229048/anaplasma-phagocytophilum-infection-subverts-carbohydrate-metabolic-pathways-in-the-tick-vector-ixodes-scapularis
#4
Alejandro Cabezas-Cruz, Pilar Alberdi, James J Valdés, Margarita Villar, José de la Fuente
The obligate intracellular pathogen, Anaplasma phagocytophilum, is the causative agent of human, equine, and canine granulocytic anaplasmosis and tick-borne fever (TBF) in ruminants. A. phagocytophilum has become an emerging tick-borne pathogen in the United States, Europe, Africa, and Asia, with increasing numbers of infected people and animals every year. It has been recognized that intracellular pathogens manipulate host cell metabolic pathways to increase infection and transmission in both vertebrate and invertebrate hosts...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28223344/an-intestinal-farnesoid-x-receptor-ceramide-signaling-axis-modulates-hepatic-gluconeogenesis-in-mice
#5
Cen Xie, Changtao Jiang, Jingmin Shi, Xiaoxia Gao, Dongxue Sun, Lulu Sun, Ting Wang, Shogo Takahashi, Mallappa Anitha, Kristopher W Krausz, Andrew D Patterson, Frank J Gonzalez
Increasing evidence supports the view that intestinal farnesoid X receptor (FXR) is involved in glucose tolerance and that FXR signaling can be profoundly impacted by the gut microbiota. Selective manipulation of the gut microbiota-FXR signaling axis was reported to significantly impact glucose intolerance, but the precise molecular mechanism remains largely unknown. Here, caffeic acid phenethyl ester (CAPE), an over-the-counter dietary supplement and an inhibitor of bacterial bile salt hydrolase, increased levels of intestinal tauro-β-muricholic acid, which selectively suppresses intestinal FXR signaling...
March 2017: Diabetes
https://www.readbyqxmd.com/read/28222147/the-desert-gerbil-psammomys-obesus-as-a-model-for-metformin-sensitive-nutritional-type-2-diabetes-to-protect-hepatocellular-metabolic-damage-impact-of-mitochondrial-redox-state
#6
Inès Gouaref, Dominique Detaille, Nicolas Wiernsperger, Naim Akhtar Khan, Xavier Leverve, Elhadj-Ahmed Koceir
INTRODUCTION: While metformin (MET) is the most widely prescribed antidiabetic drug worldwide, its beneficial effects in Psammomys obesus (P. obesus), a rodent model that mimics most of the metabolic features of human diabetes, have not been explored thoroughly. Here, we sought to investigate whether MET might improve insulin sensitivity, glucose homeostasis, lipid profile as well as cellular redox and energy balance in P. obesus maintained on a high energy diet (HED). MATERIALS AND METHODS: P...
2017: PloS One
https://www.readbyqxmd.com/read/28220106/synchronization-by-daytime-restricted-food-access-modulates-the-presence-and-subcellular-distribution-of-%C3%AE-catenin-and-its-phosphorylated-forms-in-the-rat-liver
#7
Dalia Luz De Ita-Pérez, Mauricio Díaz-Muñoz
β-catenin, the principal effector of the Wnt pathway, is also one of the cadherin cell adhesion molecules; therefore, it fulfills signaling and structural roles in most of the tissues and organs. It has been reported that β-catenin in the liver regulates metabolic responses such as gluconeogenesis and histological changes in response to obesity-promoting diets. The function and cellular location of β-catenin is finely modulated by coordinated sequences of phosphorylation-dephosphorylation events. In this article, we evaluated the levels and cellular localization of liver β-catenin variants, more specifically β-catenin phosphorylated in serine 33 (this phosphorylation provides recognizing sites for β-TrCP, which results in ubiquitination and posterior proteasomal degradation of β-catenin) and β-catenin phosphorylated in serine 675 (phosphorylation that enhances signaling and transcriptional activity of β-catenin through recruitment of different transcriptional coactivators)...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28218988/toxicological-effects-during-and-following-persistent-insulin-induced-hypoglycaemia-in-healthy-euglycaemic-rats
#8
Vivi F H Jensen, Anne-Marie Mølck, Line O Berthelsen, Lene Alifrangis, Lene Andersen, Melissa Chapman, Jens Lykkesfeldt, Ingrid B Bøgh
New insulin analogues with a longer duration of action and a "peakless" pharmacokinetic profile have been developed to improve efficacy, safety and convenience for diabetic patients. During non-clinical development, according to regulatory guidelines, these analogues are tested in healthy euglycaemic rats rendering them persistently hypoglycaemic. Little is known about the effect of persistent (24 hr/day) insulin-induced hypoglycaemia (IIH) in rats, complicating interpretation of results in pre-clinical studies with new longer-acting insulin analogues...
February 20, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28218955/antihyperglycemiac-action-of-diosmin-a-citrus-flavonoid-is-induced-through-endogenous-%C3%AE-endorphin-in-type-i-like-diabetic-rats
#9
Chia-Chen Hsu, Mang Hung Lin, Juei Tang Cheng, Ming Chang Wu
Diosmin is one of the flavonoids contained in citrus and has been demonstrated to improve glucose metabolism in diabetic disorders. However, the mechanism(s) of diosmin in glucose regulation remain obscure. Therefore, we investigated the potential mechanism(s) for the antihyperglycemic action of diosmin in streptozotocin-induced diabetic rats (STZ-diabetic rats). Diosmin lowered hyperglycemia in a dose-dependent manner in STZ-diabetic rats. This action was inhibited by naloxone at a dose sufficient to block opioid receptors...
February 20, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28218622/activation-of-murine-pre-proglucagon-producing-neurons-reduces-food-intake-and-body-weight
#10
Ronald P Gaykema, Brandon A Newmyer, Matteo Ottolini, Vidisha Raje, Daniel M Warthen, Philip S Lambeth, Maria Niccum, Ting Yao, Yiru Huang, Ira G Schulman, Thurl E Harris, Manoj K Patel, Kevin W Williams, Michael M Scott
Peptides derived from pre-proglucagon (GCG peptides) act in both the periphery and the CNS to change food intake, glucose homeostasis, and metabolic rate while playing a role in anxiety behaviors and physiological responses to stress. Although the actions of GCG peptides produced in the gut and pancreas are well described, the role of glutamatergic GGC peptide-secreting hindbrain neurons in regulating metabolic homeostasis has not been investigated. Here, we have shown that chemogenetic stimulation of GCG-producing neurons reduces metabolic rate and food intake in fed and fasted states and suppresses glucose production without an effect on glucose uptake...
February 20, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28218289/type-i-neuregulin1%C3%AE-is-a-novel-local-mediator-to-suppress-hepatic-gluconeogenesis-in-mice
#11
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/28214879/thiamine-deprivation-produces-a-liver-atp-deficit-and-metabolic-and-genomic-effects-in-mice-findings-are-parallel-to-those-of-biotin-deficiency-and-have-implications-for-energy-disorders
#12
Alain de J Hernandez-Vazquez, Josue Andres Garcia-Sanchez, Elizabeth Moreno-Arriola, Ana Salvador-Adriano, Daniel Ortega-Cuellar, Antonio Velazquez-Arellano
Thiamine is one of several essential cofactors for ATP generation. Its deficiency, like in beriberi and in the Wernicke-Korsakoff syndrome, has been studied for many decades. However, its mechanism of action is still not completely understood at the cellular and molecular levels. Since it acts as a coenzyme for dehydrogenases of pyruvate, branched-chain keto acids, and ketoglutarate, its nutritional privation is partly a phenocopy of inborn errors of metabolism, among them maple syrup urine disease. In the present paper, we report metabolic and genomic findings in mice deprived of thiamine...
February 18, 2017: Journal of Nutrigenetics and Nutrigenomics
https://www.readbyqxmd.com/read/28212844/thyroid-stimulating-hormone-increases-hepatic-gluconeogenesis-via-crtc2
#13
Yujie Li, Laicheng Wang, Lingyan Zhou, Yongfeng Song, Shizhan Ma, Chunxiao Yu, Jiajun Zhao, Chao Xu, Ling Gao
Epidemiological evidence indicates that thyroid stimulating hormone (TSH) is positively correlated with abnormal glucose levels. We previously reported that TSH has direct effects on gluconeogenesis. However, the underlying molecular mechanism remains unclear. In this study, we observed increased fasting blood glucose and glucose production in a mouse model of subclinical hypothyroidism (only elevated TSH levels). TSH acts via the classical cAMP/PKA pathway and CRTC2 regulates glucose homeostasis. Thus, we explore whether CRTC2 is involved in the process of TSH-induced gluconeogenesis...
February 14, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28209181/de-novo-sequencing-and-comparative-transcriptome-analysis-of-adventitious-root-development-induced-by-exogenous-indole-3-butyric-acid-in-cuttings-of-tetraploid-black-locust
#14
Jine Quan, Seng Meng, Erhui Guo, Sheng Zhang, Zhong Zhao, Xitian Yang
BACKGROUND: Indole-3-butyric acid (IBA) is applied to the cuttings of various plant species to induce formation of adventitious roots (ARs) in commercial settings. Tetraploid black locust is an attractive ornamental tree that is drought resistant, sand tolerant, can prevent sand erosion and has various commercial uses. To further elucidate the mechanisms of AR formation, we used Illumina sequencing to analyze transcriptome dynamics and differential gene expression at four developmental stages in control (CK) and IBA-treated groups...
February 16, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28198082/pck1-expression-is-correlated-with-the-plasma-glucose-level-in-the-duck
#15
L Chen, T Zeng, G Q Li, R Liu, Y Tian, Q H Li, L Z Lu
Phosphoenolpyruvate carboxykinase 1 (soluble) (PCK1) is a key gene in gluconeogenesis and glyceroneogenesis. Although its functions have been extensively studied in mice, bats and humans, little is known in ducks. Here, PCK1 functions were studied using a duck domestication model and a 48-h fasting experiment. We found PCK1 expression significantly decreased in two breeds of domestic ducks (Jinyun Pockmark ducks and Cherry Valley ducks) as compared with wild ducks (Anas platyrhynchos). Simultaneously, plasma levels of glucose, triglycerides and free fatty acid in domestic ducks were lower than in wild ducks...
February 15, 2017: Animal Genetics
https://www.readbyqxmd.com/read/28194257/is-p53-involved-in-tissue-specific-insulin-resistance-formation
#16
REVIEW
Justyna Strycharz, Jozef Drzewoski, Janusz Szemraj, Agnieszka Sliwinska
p53 constitutes an extremely versatile molecule, primarily involved in sensing the variety of cellular stresses. Functional p53 utilizes a plethora of mechanisms to protect cell from deleterious repercussions of genotoxic insults, where senescence deserves special attention. While the impressive amount of p53 roles has been perceived solely by the prism of antioncogenic effect, its presence seems to be vastly connected with metabolic abnormalities underlain by cellular aging, obesity, and inflammation. p53 has been found to regulate multiple biochemical processes such as glycolysis, oxidative phosphorylation, lipolysis, lipogenesis, β-oxidation, gluconeogenesis, and glycogen synthesis...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28187710/ionomic-and-metabolic-responses-to-neutral-salt-or-alkaline-salt-stresses-in-maize-zea-mays-l-seedlings
#17
Rui Guo, LianXuan Shi, Changrong Yan, Xiuli Zhong, FengXue Gu, Qi Liu, Xu Xia, Haoru Li
BACKGROUND: Soil salinity and alkalinity present a serious threat to global agriculture. However, most of the studies have focused on neutral salt stress, and the information on the metabolic responses of plants to alkaline salt stress is limited. This investigation aimed at determining the influence of neutral salt and alkaline salt stresses on the content of metal elements and metabolites in maize plant tissues, by using mixtures of various proportions of NaCl, NaHCO3, Na2SO4, and Na2CO3...
February 10, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28183717/the-transcriptional-regulator-of-the-chaperone-response-hsf1-controls-hepatic-bioenergetics-and-protein-homeostasis
#18
Aijun Qiao, Xiongjie Jin, Junfeng Pang, Demetrius Moskophidis, Nahid F Mivechi
Metabolic energy reprogramming facilitates adaptations to a variety of stress conditions and cellular dysfunction, but how the energetic demands are monitored and met in response to physiological stimuli remains elusive. Our data support a model demonstrating that heat shock factor 1 (HSF1), a master transcriptional regulator of the chaperone response, has been coopted from its role as a critical protein quality-control regulator to having a central role in systemic energy sensing and for metabolic adaptation to nutrient availability...
February 9, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28183261/lactate-dehydrogenase-inhibition-biochemical-relevance-and-therapeutical-potential
#19
Giuseppina Laganà, Davide Barreca, Antonella Calderaro, Ersilia Bellocco
Lactate dehydrogenase (LHD) is a key enzyme of anaerobic metabolism in almost all living organisms and it is also a functional checkpoint for glucose restoration during gluconeogenesis and single-stranded DNA metabolism. This enzyme has a well preserved structure during evolution and among the species, with little, but sometimes very useful, changes in the amino acid sequence, which makes it an attractive target for the design and construction of functional molecules able to modulate its catalytic potential and expression...
February 8, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28181729/the-dietary-protein-paradox-and-threonine-15-n-depletion-pyridoxal-5-phosphate-enzyme-activity-as-a-mechanism-for-the-%C3%AE-15-n-trophic-level-effect
#20
B T Fuller, K J Petzke
RATIONALE: Nitrogen stable isotope ratios (δ(15) N values) are used to reconstruct dietary patterns, but the biochemical mechanism(s) responsible for the diet to tissue trophic level effect and its variability are not fully understood. Here δ(15) N amino acid (AA) values and physiological measurements (nitrogen intake, plasma albumin concentrations, liver reduced glutathione concentrations and leucine oxidation rates) are used to investigate increased dietary protein consumption and oxidative stress (vitamin E deficiency) in rat total plasma protein...
February 9, 2017: Rapid Communications in Mass Spectrometry: RCM
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