keyword
MENU ▼
Read by QxMD icon Read
search

Glucose toxicity

keyword
https://www.readbyqxmd.com/read/27922115/perilipin-5-fine-tunes-lipid-oxidation-to-metabolic-demand-and-protects-against-lipotoxicity-in-skeletal-muscle
#1
Claire Laurens, Virginie Bourlier, Aline Mairal, Katie Louche, Pierre-Marie Badin, Etienne Mouisel, Alexandra Montagner, André Marette, Angelo Tremblay, John S Weisnagel, Hervé Guillou, Dominique Langin, Denis R Joanisse, Cedric Moro
Lipid droplets (LD) play a central role in lipid homeostasis by controlling transient fatty acid (FA) storage and release from triacylglycerols stores, while preventing high levels of cellular toxic lipids. This crucial function in oxidative tissues is altered in obesity and type 2 diabetes. Perilipin 5 (PLIN5) is a LD protein whose mechanistic and causal link with lipotoxicity and insulin resistance has raised controversies. We investigated here the physiological role of PLIN5 in skeletal muscle upon various metabolic challenges...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27921518/increased-radio-toxicity-in-two-cancerous-cell-lines-irradiated-by-low-and-high-energy-photons-in-the-presence-of-thio-glucose-bound-gold-nanoparticles
#2
Shokouhozaman Soleymanifard, Atefeh Rostami, Seyed Amir Aledavood, Maryam Moghadam Matin, Ameneh Sazgarnia
PURPOSE: Gold nanoparticles modified by thio-glucose have been believed to increase the toxicity of radiotherapy in human malignant cells. We report the effect of thio-glucose-bound gold nanoparticles (Glu-G nanoparticles), 16 nm in size, on two human lung (QU-DB) and breast (MCF7) cancer cell lines combined with kilo and megavoltage X-rays. MATERIALS AND METHODS: The shape and surface characteristics, the size distribution and light absorption spectrum of the prepared nanoparticles were measured by transmission electron microscopy, dynamic light scattering, and Ultraviolet-Visible spectrophotometry, respectively...
December 6, 2016: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/27918858/d10-in-the-treatment-of-prehospital-hypoglycemia-a-24-month-observational-cohort-study
#3
H Gene Hern, Matthew Kiefer, Derex Louie, Joseph Barger, Harrison J Alter
INTRODUCTION: Prehospital first responders historically have used an IV bolus of 50 mL of 50% dextrose solution (D50) for the treatment of hypoglycemia in the field. A local Emergency Medical Services (EMS) system recently approved a hypoglycemia treatment protocol of IV 10% dextrose solution (D10) due to occasional shortages and higher cost of D50. We use the experience of this EMS system to report the feasibility, safety, and efficacy of this approach. METHODS: Over the course of 104 weeks, paramedics treated 1,323 hypoglycemic patients with D10 and recorded patient demographics and clinical outcomes...
December 5, 2016: Prehospital Emergency Care
https://www.readbyqxmd.com/read/27916421/protective-potential-of-averrhoa-bilimbi-fruits-in-ameliorating-the-hepatic-key-enzymes-in-streptozotocin-induced-diabetic-rats
#4
Surya B Kurup, Mini S
BACK GROUND: Diabetes is a mutifactorial disease which leads to several complications. Currently available drug regimens for management of diabetes have certain drawbacks. Need for safer and effective medicines from natural sources having potent antidiabetic activity. Averrhoa bilimbi Linn. (Oxalidaceae) is a medicinal plant and is reported to possess hypoglycemic activity. OBJECTIVE: To investigate the antidiabetic potential of Averrhoa bilimbi fruit extract in streptozotocin-induced diabetic rats...
December 1, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27908688/increased-production-of-l-serine-in-escherichia-coli-through-adaptive-laboratory-evolution
#5
Hemanshu Mundhada, Jose S Miguel, Konstantin Schneider, Anna Koza, Hanne B Christensen, Tobias Klein, Patrick V Phaneuf, Markus Herrgard, Adam M Feist, Alex T Nielsen
L-serine is a promising building block biochemical with a high theoretical production yield from glucose. Toxicity of L-serine is however prohibitive for high-titer production in E. coli. Here, E. coli lacking L-serine degradation pathways was evolved for improved tolerance by gradually increasing L-serine concentration from 3 to 100g/L using adaptive laboratory evolution (ALE). Genome sequencing of isolated clones revealed multiplication of genetic regions, as well as mutations in thrA, thereby showing a potential mechanism of serine inhibition...
November 28, 2016: Metabolic Engineering
https://www.readbyqxmd.com/read/27904096/development-and-analysis-of-novel-therapeutic-targets-to-improve-pancreatic-%C3%AE-cell-function-in-type-2-diabetes
#6
Yukiko K Kaneko
 Pancreatic β-cell dysfunction is a major feature of type 2 diabetes. Therefore maintenance of β-cell function is essential to preventing the onset and progression of type 2 diabetes. To elucidate the mechanisms underlying the regulation of insulin secretion and β-cell survival, we particularly focused on the roles of gasotransmitters in pancreatic β-cells. Nitric oxide (NO) and hydrogen sulfide (H2S) are recognized as toxic gases. However, they are also vital physiological and pathophysiological mediators in various cell types...
2016: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
https://www.readbyqxmd.com/read/27902770/mitochondrial-targeted-decyl-triphenylphosphonium-enhances-2-deoxy-d-glucose-mediated-oxidative-stress-and-clonogenic-killing-of-multiple-myeloma-cells
#7
Jeanine Schibler, Ann M Tomanek-Chalkley, Jessica L Reedy, Fenghuang Zhan, Douglas R Spitz, Michael K Schultz, Apollina Goel
Therapeutic advances have markedly prolonged overall survival in multiple myeloma (MM) but the disease currently remains incurable. In a panel of MM cell lines (MM.1S, OPM-2, H929, and U266), using CD138 immunophenotyping, side population staining, and stem cell-related gene expression, we demonstrate the presence of stem-like tumor cells. Hypoxic culture conditions further increased CD138low stem-like cells with upregulated expression of OCT4 and NANOG. Compared to MM cells, these stem-like cells maintained lower steady-state pro-oxidant levels with increased uptake of the fluorescent deoxyglucose analog...
2016: PloS One
https://www.readbyqxmd.com/read/27896786/construction-of-efficient-streptococcus-zooepidemicus-strains-for-hyaluoronic-acid-production-based-on-identification-of-key-genes-involved-in-sucrose-metabolism
#8
Xuzhen Zhang, Man Wang, Tuanjie Li, Lixia Fu, Wei Cao, Hao Liu
Biosynthesis of polysaccharide hyaluoronic acid (HA) by Streptococcus zooepidemicus is a carbon-intensive process. The carbon flux and factor(s) restricting HA yield were not well understood. Here, we investigated the function of genes involved in sucrose metabolism and identified targets limiting HA yield, which were exploited to construct efficient S. zooepidemicus strains for HA production. The sucrose uptake was addressed by deletion of scrA and scrB, which encodes sucrose-PTS permease and sucrose-6-phosphate hydrolase, respectively...
December 2016: AMB Express
https://www.readbyqxmd.com/read/27896586/effect-of-berberine-on-the-ratio-of-high-molecular-weight-adiponectin-to-total-adiponectin-and-adiponectin-receptors-expressions-in-high-fat-diet-fed-rats
#9
Yue-Yue Wu, Ying Zha, Jun Liu, Fang Wang, Jiong Xu, Zao-Ping Chen, He-Yuan Ding, Li Sheng, Xiao-Jie Han
OBJECTIVE: To assess the effects of berberine (BBR) on high-molecular weight (HMW) adiponectin and adiponectin receptors (adipoR1/adipoR2) expressions in high-fat (HF) diet fed rats. METHODS: Forty Wistar male rats were randomly assigned into a normal diet fed group and three HF diet (fat for 45% calories) fed groups (n=10 for each group). All rats underwent 12 weeks of feeding. After 4 weeks feeding, rats in the two of three HF diet fed groups were treated with 150 mg·kg(-1)·day(-1) BBR (HF+LBBR group) and 380 mg·kg(-1)·day(-1) BBR (HF+HBBR group) by gavage once a day respectively for the next 8 weeks while the rats in other groups treated with vehicle (NF+Veh and HF+Veh)...
November 17, 2016: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/27893829/sansevieria-roxburghiana-schult-schult-f-family-asparagaceae-attenuates-type-2-diabetes-and-its-associated-cardiomyopathy
#10
Niloy Bhattacharjee, Ritu Khanra, Tarun K Dua, Susmita Das, Bratati De, M Zia-Ul-Haq, Vincenzo De Feo, Saikat Dewanjee
BACKGROUND: Sansevieria roxburghiana Schult. & Schult. F. (Family: Asparagaceae) rhizome has been claimed to possess antidiabetic activity in the ethno-medicinal literature in India. Therefore, present experiments were carried out to explore the protective role of edible (aqueous) extract of S. roxburghiana rhizome (SR) against experimentally induced type 2 diabetes mellitus (T2DM) and its associated cardiomyopathy in Wistar rats. METHODS: SR was chemically characterized by GC-MS analysis...
2016: PloS One
https://www.readbyqxmd.com/read/27885683/the-effect-of-ph-and-amino-acids-on-the-formation-of-methylglyoxal-in-glucose-amino-acid-model-system
#11
Pei Yu, Xian-Bing Xu, Shu-Juan Yu
BACKGROUND: Methylglyoxal (MGO) as a α-dicarbonyl compound not only affects food flavor and color but also contributes to the loss of nutrition and the generation of toxic compounds. The study was carried out using glucose-amino acids model system incubated at 120 °C to investigate the effect of amino acids and pH on the formation of MGO. MGO derivative (2-methylquinoxaline) was detected by a high performance liquid chromatography with a diode array detector. Changes of glucose, amino acids and products such as acetic acid were tested using a high performance anion exchange chromatography with an electrochemical detector or an electrical conductivity detector...
November 24, 2016: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/27883213/oxidative-stress-and-amyloid-toxicity-insights-from-yeast
#12
Mauro B França, Karina C Lima, Elis C A Eleutherio
Alzheimer's disease is the most common neurodegenerative disorder. One of the factors that promotes neurodegeneration is the accumulation of senile plaques formed by Aβ peptide. In this paper it was analyzed if oxidative stress is cause or consequence of amyloid cascade and the role of antioxidant defense system in this process, using S. cerevisiae (with a multicopy plasmid containing the Aβ1-42 sequence) as experimental model. Cells grown on glycerol were more tolerant than when grown on glucose, strengthening the role of the antioxidant defense system against Aβ accumulation...
November 24, 2016: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/27881388/hyperglycemia-induces-defective-ca2-homeostasis-in-cardiomyocytes
#13
Andrea Sorrentino, Giulia Borghetti, Yu Zhou, Antonio Cannata, Marianna Meo, Sergio Signore, Piero Anversa, Annarosa Leri, Polina Goichberg, Khaled Qanud, Jason T Jacobson, Thomas H Hintze, Marcello Rota
Diabetes and other metabolic conditions characterized by elevated blood glucose constitute important risk factors for cardiovascular disease. Hyperglycemia targets myocardial cells rendering ineffective mechanical properties of the heart, but cellular alterations dictating the progressive deterioration of cardiac function with metabolic disorders remain to be clarified. In the current study, we examined the effects of hyperglycemia on cardiac function and myocyte physiology by employing mice with high blood glucose induced by administration of streptozotocin, a compound toxic to insulin-producing β-cells...
November 23, 2016: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/27881232/serum-copper-zinc-and-iron-levels-and-markers-of-carbohydrate-metabolism-in-postmenopausal-women-with-prediabetes-and-type-2-diabetes-mellitus
#14
Margarita G Skalnaya, Anatoly V Skalny, Alexey A Tinkov
The objective of the present study was to evaluate serum level of copper, zinc, iron and metabolic parameters in postmenopausal women with diabetes. A total of 413 postmenopausal women were enrolled in the current study. Women were divided into 4 groups with equal age and body mass index according to glycated hemoglobin (HbA1c) levels (≤5.5; 5.5-6.0; 6.0-6.5; >6.5%). Serum Fe, Cu, and Zn levels were assessed using inductively-coupled plasma mass-spectrometry. Blood HbA1c, serum glucose, insulin, C-reactive protein (CRP), ferritin, and ceruloplasmin (Cp) were assessed using commercial kits...
November 16, 2016: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/27872738/the-icet-a-recommendations-for-the-diagnosis-and-management-of-disturbances-of-glucose-homeostasis-in-thalassemia-major-patients
#15
Vincenzo De Sanctis, Ashraf T Soliman, Heba Elsedfy, Saif Al Yaarubi, Nicos Skordis, Doaa Khater, Mohamed El Kholy, Iva Stoeva, Bernadette Fiscina, Michael Angastiniotis, Shahina Daar, Christos Kattamis
Iron overload in patients with thalassemia major (TM) affects glucose regulation and is mediated by several mechanisms. The pathogenesis of glycaemic abnormalities in TM is complex and multifactorial. It has been predominantly attributed to a combination of reduced insulin secretory capacity and insulin resistance. The exact mechanisms responsible for progression from norm glycaemia to overt diabetes in these patients are still poorly understood but are attributed mainly to insulin deficiency resulting from the toxic effects of iron deposited in the pancreas and insulin resistance...
2016: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/27870966/biochemical-effects-of-fipronil-and-its-metabolites-on-lipid-peroxidation-and-enzymatic-antioxidant-defense-in-tadpoles-eupemphix-nattereri-leiuperidae
#16
Hortênsia S Gripp, Juliane S Freitas, Eduardo A Almeida, Márcia C Bisinoti, Altair B Moreira
Amphibians are very sensitive to environmental change and pollution because they have both aquatic and terrestrial life cycle stages and high skin permeability. Particularly during the larval stages, when these animals are restricted to small, transient ponds, exposure to high concentrations of pesticides is inevitable in agricultural areas. Given that pesticide application increases during the summer, which coincides with the reproductive season and the occurrence of most neotropical tadpoles in their natural environment, strong indications exist that tadpoles are developing in contaminated ponds...
November 18, 2016: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/27867402/evaluation-of-hypoglycemic-and-genotoxic-effect-of-polyphenolic-bark-extract-from-quercus-sideroxyla
#17
Marcela Soto-García, Martha Rosales-Castro, Gerardo N Escalona-Cardoso, Norma Paniagua-Castro
Quercus sideroxyla is a wood species whose bark has phenolic compound and should be considered to be bioactive; the hypoglycemic and genotoxic properties of Q. sideroxyla bark were evaluated in this study. Total phenolic compound was determined in crude extract (CE) and organic extract (OE). The OE has the highest amount of phenols (724.1 ± 12.0 GAE/g). Besides, both CE and OE demonstrated effect over the inhibition of α-amylase in vitro. Hypoglycemic activity was assessed by glucose tolerance curve and the area under curve (UAC); OE showed the highest hypoglycemic activity...
2016: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/27865613/hyperglycemia-oxidative-stress-liver-damage-and-dysfunction-in-alloxan-induced-diabetic-rat-are-prevented-by-spirulina-supplementation
#18
Manel Gargouri, Christian Magné, Abdelfattah El Feki
Medicinal plants have long been used against life-threatening diseases including diabetes, with more or less success. Some of these plants have been shown to possess antioxidant activities, which could help improving diabetes inconveniences. In that context, we investigated the effects of spirulina supplementation on alloxan-induced diabetic rats, hypothesizing that co-administration of spirulina with rat diet could ameliorate diabetes complications and provide as benefits as the common antidiabetic insulin...
October 4, 2016: Nutrition Research
https://www.readbyqxmd.com/read/27863474/hypoxic-resistance-of-kras-mutant-tumor-cells-to-3-bromopyruvate-is-counteracted-by-prima-1-and-reversed-by-n-acetylcysteine
#19
Andrea Orue, Valery Chavez, Mary Strasberg-Rieber, Manuel Rieber
BACKGROUND: The metabolic inhibitor 3-bromopyruvate (3-BrPA) is a promising anti-cancer alkylating agent, shown to inhibit growth of some colorectal carcinoma with KRAS mutation. Recently, we demonstrated increased resistance to 3-BrPA in wt p53 tumor cells compared to those with p53 silencing or mutation. Since hypoxic microenvironments select for tumor cells with diminished therapeutic response, we investigated whether hypoxia unequally increases resistance to 3-BrPA in wt p53 MelJuso melanoma harbouring (Q61L)-mutant NRAS and wt BRAF, C8161 melanoma with (G12D)-mutant KRAS (G464E)-mutant BRAF, and A549 lung carcinoma with a KRAS (G12S)-mutation...
November 18, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27859843/d-versus-l-glucose-conjugation-mitochondrial-targeting-of-a-light-activated-dual-mode-of-action-ruthenium-based-anticancer-prodrug
#20
Lucien N Lameijer, Samantha L Hopkins, Tobias G Brevé, Sven H C Askes, Sylvestre Bonnet
Light-activated ruthenium polypyridyl anticancer prodrugs often suffer from poor water solubility, poor selectivity, and/or ill-defined intracellular targets. Coordination of the d- or l-glucose thioether ligand 3 (2-(2-(2-(methylthio)ethoxy)ethoxy)ethyl-β-glucopyranoside) to the highly lipophilic ruthenium complex [Ru(tpy)(dppn)(H2 O)](2+) ([1](2+) ; dppn=benzo[i]dipyrido-[3,2-a:2',3'-c]phenazine, tpy=2,2':6',2''-terpyridine) solved all these problems at once. The two enantiomers of [Ru(tpy)(dppn)(3)][PF6 ]2 , [d-2][PF6 ]2 and [l-2][PF6 ]2 , were soluble in water, which allowed the influence of the chirality of the glucose moiety on uptake, toxicity, and intracellular localization of the prodrug to be probed without changing any other physicochemical properties...
November 9, 2016: Chemistry: a European Journal
keyword
keyword
88638
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"