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Glucose transport

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https://www.readbyqxmd.com/read/28230360/capsaicin-reduces-blood-glucose-by-increasing-insulin-levels-and-glycogen-content-better-than-capsiate-in-streptozotocin-induced-diabetic-rats
#1
Shiqi Zhang, Xiaohan Ma, Zhang Lei, Hui Sun, Xiong Liu
Chili peppers exhibit anti-obesity, anti-cancer, anti-diabetic, and pain- and itchiness-relieving effects on animals and humans; these effects are due to capsaicin, which is the main pungent and biologically active component of pepper. Capsiate, a nonpungent capsaicin analogue and is similar to capsaicin in terms of structure and biological activity. In this study, we investigated whether capsaicin and capsiate exhibit the same hypoglycemic effects on rats with type 1 diabetes (T1D). Experimental rats were categorized into four groups: control, model, capsaicin, and capsiate groups...
February 23, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28228713/metabolic-and-cardiovascular-benefits-and-risks-of-emd386088-a-5-ht6-receptor-partial-agonist-and-dopamine-transporter-inhibitor
#2
Magdalena Kotańska, Joanna Śniecikowska, Magdalena Jastrzębska-Więsek, Marcin Kołaczkowski, Karolina Pytka
Since 5-HT6 receptors play role in controlling feeding and satiety and dopamine is essential for normal feeding behavior, we evaluated the ability of EMD 386088-5-HT6 receptor partial agonist and dopamine transporter inhibitor-to reduce body weight in obese rats, as well as its anorectic properties (calorie intake reduction) in rat model of excessive eating and the influence on metabolism (plasma glucose and glycerol levels). We also determined the effect of the studied compound on pica behavior in rats and its influence on blood pressure after single administration...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28228623/elucidation-of-mechanism-of-blood-brain-barrier-damage-for-prevention-and-treatment-of-vascular-dementia
#3
Masaki Ueno
It is well-known that the blood-brain barrier (BBB) plays significant roles in transporting intravascular substances into the brain. The BBB in cerebral capillaries essentially impedes the influx of intravascular compounds from the blood to the brain, while nutritive substances, such as glucose, can be selectively transported through several types of influx transporters in endothelial cells. In the choroid plexus, intravascular substances can invade the parenchyma as fenestrations exist in endothelial cells of capillaries...
February 22, 2017: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/28225829/inhibition-of-arabidopsis-chloroplast-%C3%AE-amylase-bam3-by-maltotriose-suggests-a-mechanism-for-the-control-of-transitory-leaf-starch-mobilisation
#4
Jing Li, Wenxu Zhou, Perigio Francisco, Russell Wong, Dongke Zhang, Steven M Smith
Starch breakdown in leaves at night is tightly matched to the duration of the dark period, but the mechanism by which this regulation is achieved is unknown. In Arabidopsis chloroplasts, β-amylase BAM3 hydrolyses transitory starch, producing maltose and residual maltotriose. The aim of the current research was to investigate the regulatory and kinetic properties of BAM3. The BAM3 protein was expressed in Escherichia coli and first assayed using a model substrate. Enzyme activity was stimulated by treatment with dithiothreitol and was increased 40% by 2-10 μM Ca2+ but did not require Mg2+...
2017: PloS One
https://www.readbyqxmd.com/read/28225088/the-general-pts-component-hpr-determines-the-preference-for-glucose-over-mannitol
#5
Mangyu Choe, Young-Ha Park, Chang-Ro Lee, Yeon-Ran Kim, Yeong-Jae Seok
Preferential sugar utilization is a widespread phenomenon in biological systems. Glucose is usually the most preferred carbon source in various organisms, especially in bacteria where it is taken up via the phosphoenolpyruvate:sugar phosphotransferase system (PTS). The currently proposed model for glucose preference over non-PTS sugars in enteric bacteria including E. coli is strictly dependent on the phosphorylation state of the glucose-specific PTS component, enzyme IIA(Glc) (EIIA(Glc)). However, the mechanism of the preference among PTS sugars is largely unknown in Gram-negative bacteria...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28224622/slc2a3-single-nucleotide-polymorphism-and-duplication-influence-cognitive-processing-and-population-specific-risk-for-attention-deficit-hyperactivity-disorder
#6
Sören Merker, Andreas Reif, Georg C Ziegler, Heike Weber, Ute Mayer, Ann-Christine Ehlis, Annette Conzelmann, Stefan Johansson, Clemens Müller-Reible, Indrajit Nanda, Thomas Haaf, Reinhard Ullmann, Marcel Romanos, Andreas J Fallgatter, Paul Pauli, Tatyana Strekalova, Charline Jansch, Alejandro Arias Vasquez, Jan Haavik, Marta Ribasés, Josep Antoni Ramos-Quiroga, Jan K Buitelaar, Barbara Franke, Klaus-Peter Lesch
BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) is a common, highly heritable neurodevelopmental disorder with profound cognitive, behavioral, and psychosocial impairments with persistence across the life cycle. Our initial genome-wide screening approach for copy number variants (CNVs) in ADHD implicated a duplication of SLC2A3, encoding glucose transporter-3 (GLUT3). GLUT3 plays a critical role in cerebral glucose metabolism, providing energy for the activity of neurons, which, in turn, moderates the excitatory-inhibitory balance impacting both brain development and activity-dependent neural plasticity...
February 22, 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28223989/ufgt-the-key-enzyme-associated-with-the-petals-variegation-in-japanese-apricot
#7
Xinxin Wu, Qinghua Gong, Xiaopeng Ni, Yong Zhou, Zhihong Gao
Japanese apricot (Prunus mume Sieb.et Zucc.) is an important ornamental plant in China. One of the traits of petals color variegation is attractive, but its formation mechanism is unclear. In our study, RNA-seq technology was employed to characterize the transcriptome response to the mutation of "Fuban Tiaozhi" associated with petals variegation in Japanese apricot. As a result, 4,579,040 (white-flowered, WF) and 7,269,883 (red-flowered, RF) reads were mapped to P. persica genes, while 5,006,676 (WF) and 7,907,436 (RF) were mapped to P...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28222424/1%C3%AE-25-oh-2d3-sensitive-cytosolic-ph-regulation-and-glycolytic-flux-in-human-endometrial-ishikawa-cells
#8
Ni Zeng, Yuetao Zhou, Shaqiu Zhang, Yogesh Singh, Bing Shi, Madhuri S Salker, Florian Lang
BACKGROUND/AIMS: Tumor cell proliferation is modified by 1,25-Dihydroxy-Vitamin D3 (1,25(OH)2D3), a steroid hormone predominantly known for its role in calcium and phosphorus metabolism. Key properties of tumor cells include enhanced glycolytic flux with excessive consumption of glucose and formation of lactate. As glycolysis is highly sensitive to cytosolic pH, maintenance of glycolysis requires export of H+ ions and lactate, which is in part accomplished by Na+/H+ exchangers, such as NHE1 and monocarboxylate transporters, such as MCT4...
February 8, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28219464/effect-of-egg-storage-duration-and-brooding-temperatures-on-chick-growth-intestine-morphology-and-nutrient-transporters
#9
S Yalcin, I Gursel, G Bilgen, B H Horuluoglu, G Gucluer, G T Izzetoglu
The effects of egg storage duration (ESD) and brooding temperature (BT) on BW, intestine development and nutrient transporters of broiler chicks were investigated. A total of 396 chicks obtained from eggs stored at 18°C for 3 days (ESD3-18°C) or at 14°C for 14 days (ESD14-14°C) before incubation were exposed to three BTs. Temperatures were initially set at 32°C, 34°C and 30°C for control (BT-Cont), high (BT-High) and low (BT-Low) BTs, respectively. Brooding temperatures were decreased by 2°C each at days 2, 7, 14 and 21...
February 21, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28219001/glut1-as-a-prognostic-factor-for-classical-hodgkin-s-lymphoma-correlation-with-pd-l1-and-pd-l2-expression
#10
Young Wha Koh, Jae-Ho Han, Seong Yong Park, Dok Hyun Yoon, Cheolwon Suh, Jooryung Huh
Background: Glucose transporter type 1 (GLUT1) expression is linked to glucose metabolism and tissue hypoxia. A recent study reported that GLUT1 was significantly associated with programmed death ligand 1 (PD-L1) as a therapeutic target in relapsed or refractory classical Hodgkin's lymphoma (cHL). The purpose of this study was to measure the expression of GLUT1 and assess its prognostic significance and potential relationships with PD-L1, programmed death ligand 2 (PD-L2), and programmed death-1 (PD-1) expressions in cHL...
February 21, 2017: Journal of Pathology and Translational Medicine
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
#11
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/28218639/genetic-variations-as-modifying-factors-to-dietary-zinc-requirements-a-systematic-review
#12
REVIEW
Kaitlin J Day, Melissa M Adamski, Aimee L Dordevic, Chiara Murgia
Due to reduced cost and accessibility, the use of genetic testing has appealed to health professionals for personalising nutrition advice. However, translation of the evidence linking polymorphisms, dietary requirements, and pathology risk proves to be challenging for nutrition and dietetic practitioners. Zinc status and polymorphisms of genes coding for zinc-transporters have been associated with chronic diseases. The present study aimed to systematically review the literature to assess whether recommendations for zinc intake could be made according to genotype...
February 17, 2017: Nutrients
https://www.readbyqxmd.com/read/28218490/comparative-effects-of-energy-restriction-and-resveratrol-intake-on-glycemic-control-improvement
#13
I Milton-Laskibar, L Aguirre, M T Macarulla, U Etxeberria, F I Milagro, J A Martínez, J Contreras, M P Portillo
Resveratrol (RSV) has been proposed as an energy restriction mimetic. This study aimed to compare the effects of RSV and energy restriction on insulin resistance induced by an obesogenic diet. Any additive effect of both treatments was also analyzed. Rats were fed a high-fat high-sucrose diet for 6 weeks. They were then distributed in four experimental groups which were either fed a standard control diet (C), or treated with RSV (30 mg/kg/d), or submitted to energy restriction (R, 15%), or treated with RSV and submitted to energy restriction (RR)...
February 20, 2017: BioFactors
https://www.readbyqxmd.com/read/28217523/safe-and-pragmatic-use-of-sodium-glucose-co-transporter-2-inhibitors-in-type-2-diabetes-mellitus-south-asian-federation-of-endocrine-societies-consensus-statement
#14
REVIEW
Sanjay Kalra, Sujoy Ghosh, A H Aamir, Md Tofail Ahmed, Mohammod Feroz Amin, Sarita Bajaj, Manash P Baruah, Uditha Bulugahapitiya, A K Das, Mimi Giri, Sonali Gunatilake, Saeed A Mahar, Md Faruque Pathan, Nazmul Kabir Qureshi, S Abbas Raza, Rakesh Sahay, Santosh Shakya, Dina Shreshta, Noel Somasundaram, Manilka Sumanatilleke, A G Unnikrishnan, Achini Madushani Wijesinghe
Diabetes prevalence shows a continuous increasing trend in South Asia. Although well-established treatment modalities exist for type 2 diabetes mellitus (T2DM) management, they are limited by their side effect profile. Sodium-glucose co-transporter 2 inhibitors (SGLT2i) with their novel insulin-independent renal action provide improved glycemic control, supplemented by reduction in weight and blood pressure, and cardiovascular safety. Based on the clinical outcomes with SGLT2i in patients with T2DM, treatment strategies that make a "good clinical sense" are desirable...
January 2017: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28214972/avocado-oil-induces-long-term-alleviation-of-oxidative-damage-in-kidney-mitochondria-from-type-2-diabetic-rats-by-improving-glutathione-status
#15
Omar Ortiz-Avila, María Del Consuelo Figueroa-García, Claudia Isabel García-Berumen, Elizabeth Calderón-Cortés, Jorge A Mejía-Barajas, Alain R Rodriguez-Orozco, Ricardo Mejía-Zepeda, Alfredo Saavedra-Molina, Christian Cortés-Rojo
Hyperglycemia and mitochondrial ROS overproduction have been identified as key factors involved in the development of diabetic nephropathy. This has encouraged the search for strategies decreasing glucose levels and long-term improvement of redox status of glutathione, the main antioxidant counteracting mitochondrial damage. Previously, we have shown that avocado oil improves redox status of glutathione in liver and brain mitochondria from streptozotocin-induced diabetic rats; however, the long-term effects of avocado oil and its hypoglycemic effect cannot be evaluated because this model displays low survival and insulin depletion...
February 18, 2017: Journal of Bioenergetics and Biomembranes
https://www.readbyqxmd.com/read/28214518/potentiating-slc-transporter-activity-emerging-drug-discovery-opportunities
#16
REVIEW
Marie-Laure Rives, Jonathan A Javitch, Alan D Wickenden
Maintaining the integrity of cellular membranes is critical to protecting metabolic activities and genetic information from the environment. Regulation of transport across membranes of essential chemicals, including water, nutrients, hormones and many drugs, is therefore key to cellular homeostasis and physiological processes. The two main transporter superfamilies are ATP-binding cassette (ABC) transporters that primarily function as efflux transporters, and the solute carrier (SLC) transporters. SLC transporters encompass 52 gene families with almost 400 different human transporter genes...
February 15, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28213587/emergency-extracorporeal-life-support-and-ongoing-resuscitation-a-retrospective-comparison-for-refractory-out-of-hospital-cardiac-arrest
#17
A Schober, F Sterz, H Herkner, C Wallmueller, C Weiser, P Hubner, C Testori
BACKGROUND: In refractory cardiac arrest, with cardiopulmonary resuscitation (CPR) for more than 30 min, chances of survival are small. Extracorporeal cardiopulmonary resuscitation (ECPR) is an option for certain patients with cardiac arrest. The aim of this study was to evaluate characteristics of patients selected for ECPR. METHODS: Anonymised data of adult patients suffering refractory cardiac arrest, transported with ongoing CPR to an ED of a tertiary care centre between 2002 and 2012 were analysed...
February 17, 2017: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/28213469/insulin-signaling-via-the-pi3k-akt-pathway-regulates-airway-glucose-uptake-and-barrier-function-in-a-cftr-dependent-manner
#18
Samuel A Molina, Hannah K Moriarty, Danny T Infield, Barry R Imhoff, Rachel J Vance, Agnes H Kim, Jason M Hansen, William R Hunt, Michael Koval, Nael A McCarty
Cystic fibrosis-related diabetes (CFRD) is the most common co-morbidity associated with cystic fibrosis (CF) and correlates with increased rates of lung function decline. Since glucose is a nutrient present in the airways of patients with bacterial airway infections and since insulin controls glucose metabolism, the effect of insulin on CF airway epithelia was investigated to determine the role of insulin receptors and glucose transport in regulating glucose availability in the airway. The response to insulin by human airway epithelial cells was characterized by qPCR, immunoblot, immunofluorescence, and glucose uptake assays...
February 17, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28213136/systematic-development-of-a-two-stage-fed-batch-process-for-lipid-accumulation-in-rhodotorula-glutinis
#19
Eric Lorenz, Dennis Runge, Anna-Maria Marbà-Ardébol, Maximilian Schmacht, Ulf Stahl, Martin Senz
The application of oleaginous yeast cells as feed supplement, for instance in aqua culture, can be a meaningful alternative for fish meal and oil additives. Therefore, a two-stage fed-batch process split into growth and lipogenesis phase was systematically developed to enrich the oleaginous yeast Rhodotorula glutinis Rh-00301 with high amounts of lipids at industrial relevant biomasses. Thereby, the different carbon sources glucose, sucrose and glycerol were investigated concerning their abilities to serve as a suited raw material for growth and/or lipid accumulation...
February 14, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28212997/differential-expression-and-prognostic-significance-of-glut1-according-to-histologic-type-of-non-small-cell-lung-cancer-and-its-association-with-volume-dependent-parameters
#20
Young Wha Koh, Su Jin Lee, Seong Yong Park
BACKGROUND: We evaluated glucose transporter type 1 (GLUT1) and carbonic anhydrase IX (CAIX) expression, together with volume-based(18)F-fluorodeoxyglucose positron emission tomography (FDG-PET) parameters, in non-small cell lung cancer (NSCLC) patients, and examined the prognostic significance of those parameters according to its histologic subtype. METHOD: A total of 269 patients, who underwent surgical resection for NSCLC, were reviewed retrospectively. Metabolic tumor volume (MTV) and total lesion glycolysis (TLG) values were measured by preoperative (18)F-fluorodeoxyglucose positron emission tomography computed tomography...
February 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
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