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https://www.readbyqxmd.com/read/28821551/coordinated-regulation-of-the-eii-man-and-frurki-operons-of-streptococcus-mutans-by-global-and-fructose-specific-pathways
#1
Lin Zeng, Brinta Chakraborty, Tanaz Farivar, Robert A Burne
The glucose/mannose-PTS permease EII(Man) encoded by manLMN in the dental caries pathogen Streptococcus mutans has a dominant influence on sugar-specific, CcpA-independent catabolite repression (CR). Mutations in manL affect energy metabolism and virulence-associated traits, including biofilm formation, acid tolerance and competence. Using promoter:reporter fusions, expression of the manLMN and the fruRKI operons, encoding a transcriptional regulator, a fructose-1-P kinase and a fructose-PTS permease EII(Fru), respectively, was monitored in response to carbohydrate source and in mutants lacking CcpA, FruR, and components of EII(Man) Expression of genes for EII(Man) and EII(Fru) was directly regulated by CcpA and CR, as evinced by in vivo and in vitro methods...
August 18, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28820469/a-third-generation-glucose-biosensor-based-on-cellobiose-dehydrogenase-immobilized-on-a-glassy-carbon-electrode-decorated-with-electrodeposited-gold-nanoparticles-characterization-and-application-in-human-saliva
#2
Paolo Bollella, Lo Gorton, Roland Ludwig, Riccarda Antiochia
Efficient direct electron transfer (DET) between a cellobiose dehydrogenase mutant from Corynascus thermophilus (CtCDH C291Y) and a novel glassy carbon (GC)-modified electrode, obtained by direct electrodeposition of gold nanoparticles (AuNPs) was realized. The electrode was further modified with a mixed self-assembled monolayer of 4-aminothiophenol (4-APh) and 4-mercaptobenzoic acid (4-MBA), by using glutaraldehyde (GA) as cross-linking agent. The CtCDH C291Y/GA/4-APh,4-MBA/AuNPs/GC platform showed an apparent heterogeneous electron transfer rate constant (ks) of 19...
August 18, 2017: Sensors
https://www.readbyqxmd.com/read/28819562/re-evaluation-of-glycated-hemoglobin-and-glycated-albumin-with-continuous-glucose-monitoring-system-as-markers-of-glycemia-in-patients-with-liver-cirrhosis
#3
Hiroshi Isoda, Hirokazu Takahashi, Yuichiro Eguchi, Motoyasu Kojima, Kanako Inoue, Kenichiro Murayama, Yayoi Matsuda, Keizo Anzai
[This retracts the article DOI: 10.3892/br.2016.808.].
September 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28819193/experiments-suggesting-extra-digestive-effects-of-enteral-pancreatic-amylase-and-its-peptides-on-glucose-homeostasis-in-a-pig-model
#4
Stefan G Pierzynowski, Kateryna Goncharova, Peter C Gregory, Björn Weström, Sergiy E Podpryatov, Sergii S Podpriatov, Jarosław Woliński, Hlib Repich, Nils Wierup, Liudmyla Lozinska
The studies presented were designed to highlight the impact of pancreatic enzymes on glycemic control and insulin response. Blood glucose and plasma insulin levels were monitored after intravenous, oral or direct gut glucose tolerance tests (GTT) in 6 pigs with an intact gastrointestinal tract and in 12 pigs following duodenal-jejunal bypass (DJB) surgery. In the intact pigs, pancreatic enzymes (Creon®) given orally 1 h prior to the GTT, lowered the blood glucose levels during the oral and meal GTT and reduced the plasma insulin response during the intravenous and meal GTT...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28817342/hypoglycemia-risk-related-to-double-dose-is-markedly-reduced-with-basal-insulin-peglispro-versus-insulin-glargine-in-patients-with-type-2-diabetes-mellitus-in-a-randomized-trial-imagine-8
#5
Cynthia Harris, Thomas Forst, Tim Heise, Leona Plum-Mörschel, Elaine Watkins, Qianyi Zhang, Ludi Fan, Parag Garhyan, Niels Porksen
BACKGROUND: Basal insulin peglispro (BIL) has a peripheral-to-hepatic distribution of action that resembles endogenous insulin and a prolonged duration of action with a flat pharmacokinetic/pharmacodynamic profile at steady state, characteristics that tend to reduce hypoglycemia risk compared to insulin glargine (GL). The primary objective was to demonstrate that clinically significant hypoglycemia (blood glucose ≤54 mg/dL [3.0 mmol/L] or symptoms of severe hypoglycemia) occurred less frequently within 84 h after a double dose (DD) of BIL than a DD of GL...
August 2017: Diabetes Technology & Therapeutics
https://www.readbyqxmd.com/read/28816926/feasibility-and-relevance-of-antipsychotic-safety-monitoring-in-children-with-tourette-syndrome-a-prospective-longitudinal-study
#6
Tamara Pringsheim, Josephine Ho, Justyna R Sarna, Tracy Hammer, Scott Patten
PURPOSE/BACKGROUND: Antipsychotics are efficacious for tics and are increasingly prescribed to children with behavioral disorders. Antipsychotics have important adverse effects, and systematic monitoring of drug safety is infrequently performed. The objectives of this study were to determine the feasibility of antipsychotic safety monitoring in children with Tourette Syndrome using a defined protocol and to evaluate the risk of adverse effects with chronic use. METHODS/PROCEDURES: A prospective longitudinal study of children prescribed antipsychotics was performed...
August 14, 2017: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28816535/professional-continuous-flash-glucose-monitoring-with-ambulatory-glucose-profile-reporting-to-supplement-a1c-rationale-and-practical-implementation
#7
Irl B Hirsch, Carol A Verderese
OBJECTIVE: Recent consensus statements strongly advocate downloading and interpretation of continuous glucose data for diabetes management in patients with type 1 or type 2 diabetes. Supplementing periodic A1C testing with intermittent continuous glucose monitoring (CGM) using a standardized report form known as the ambulatory glucose profile (AGP) is an evolving standard of care. The rationale for this approach and its implementation with a recently approved novel monitoring technology are explored...
August 17, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28811776/role-of-ramadan-specific-diabetes-education-rsde-a-prospective-study
#8
Muhammad Yakoob Ahmedani, Shahid Ahsan, Muhammad Saif Ul Haque
OBJECTIVE: To observe the role of Ramadan Specific Diabetes Education (RSDE) in the management of fasting patients with diabetes. METHODS: This prospective study was carried out at out-patients department (OPD) of Baqai Institute of Diabetology & Endocrinology (BIDE), in 2012. Recruitment of patients started a month prior to Ramadan. Muslim patients with diabetes whether had their first or on follow up visit to the OPD and showed intention to hold fast in the month of Ramadan, were included...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28810853/acute-effects-of-reducing-sitting-time-in-adolescents-a-randomized-cross-over-study
#9
Anisse Penning, Anthony D Okely, Stewart G Trost, Jo Salmon, Dylan P Cliff, Marijka Batterham, Steven Howard, Anne-Maree Parrish
BACKGROUND: Levels of sitting among adolescents are high, especially during the school day. The acute cognitive and health consequences associated with prolonged sitting are poorly understood in adolescents. This randomized crossover design study examined the acute effects of a simulated school day with reduced sitting or usual sitting on adolescents' cognitive function and cardiometabolic biomarkers. METHODS: Eighteen healthy school aged adolescents were recruited from the community to the study (11 males; 7 females; mean age [SD] = 13...
August 15, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28809093/caregiving-for-children-with-type-1-diabetes-and-clinical-outcomes-in-central-india-the-idream-study
#10
Greta Friedemann-Sánchez, Benjamin D Capistrant, James Ron, Lindsey Novak, Caroline Zuijdwijk, Graham D Ogle, Barbara Anderson, Antoinette Moran, Sharad Pendsey
AIMS: Parental care influences outcomes for children's type 1 diabetes (T1D). There is little evidence about the impact of parental caregiving in developing countries, where fixed dose human insulin (conventional) therapy and limited self-monitoring of blood glucose are common. This article investigates whether performance of key T1D management tasks by children or their caregivers impacts hemoglobin A1c (HbA1c). METHODS: We surveyed the caregivers of 179 children with T1D routinely treated in a specialized diabetes clinic in Maharashtra, India to determine who performs key diabetes care tasks: child or parent...
August 15, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/28806782/the-use-of-18f-fluoro-deoxy-glucose-positron-emission-tomography-18f-fdg-pet-as-a-non-invasive-pharmacodynamic-biomarker-to-determine-the-minimally-pharmacologically-active-dose-of-azd8835-a-novel-pi3k%C3%AE-inhibitor
#11
Juliana Maynard, Sally-Ann Emmas, Francois-Xavier Ble, Herve Barjat, Emily Lawrie, Urs Hancox, Urszula M Polanska, Alison Pritchard, Kevin Hudson
BACKGROUND: The phosphatidyl inositol 3 kinase (PI3K), AKT and mammalian target of rapamycin (mTOR) signal transduction pathway is frequently de-regulated and activated in human cancer and is an important therapeutic target. AZD8835 is a PI3K inhibitor, with selectivity against PI3K α and δ isoforms, which is currently in Phase 1 clinical trials. 18F-Fluoro-deoxy-glucose positron emission tomography (18F-FDG PET) is a non-invasive pharmacodynamic imaging biomarker that has become an integral part of drug development...
2017: PloS One
https://www.readbyqxmd.com/read/28806672/a-novel-approach-for-rapidly-and-cost-effectively-assessing-toxicity-of-toxic-metals-in-acidic-water-using-an-acidophilic-iron-oxidizing-biosensor
#12
Shih-Hung Yang, Kuo-Chih Cheng, Vivian Hsiu-Chuan Liao
Contamination by heavy metals and metalloids is a serious environmental and health concern. Acidic wastewaters are often associated with toxic metals which may enter and spread into agricultural soils. Several biological assays have been developed to detect toxic metals; however, most of them can only detect toxic metals in a neutral pH, not in an acidic environment. In this study, an acidophilic iron-oxidizing bacterium (IOB) Strain Y10 was isolated, characterized, and used to detect toxic metals toxicity in acidic water at pH 2...
August 6, 2017: Chemosphere
https://www.readbyqxmd.com/read/28806493/olaparib-a-clinically-used-poly-adp-ribose-polymerase-inhibitor-protects-against-oxidant-induced-cardiac-myocyte-death-in-vitro-and-improves-cardiac-contractility-during-early-phase-after-heart-transplantation-in-a-rat-model-in-vivo
#13
Sevil Korkmaz-Icöz, Bartosz Szczesny, Michela Marcatti, Shiliang Li, Mihály Ruppert, Felix Lasitschka, Sivakkanan Loganathan, Csaba Szabo, Gábor Szabó
BACKGROUND AND PURPOSE: Olaparib, rucaparib and niraparib, potent inhibitors of poly(ADP-ribose) polymerase (PARP) have recently been approved for human use for oncological indications. Considering the previously demonstrated role of PARP in various forms of acute and chronic myocardial injury, we tested the effect of olaparib in in-vitro models of oxidative stress in cardiomyocytes, and in an in-vivo model of cardiac transplantation. EXPERIMENTAL APPROACH: H9c2-embryonic rat heart-derived myoblasts pretreated with vehicle or olaparib (10μM) were challenged with either hydrogen-peroxide (H2 O2 ) or with glucose-oxidase (GOx, which generates H2 O2 in the tissue culture medium)...
August 14, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28805693/glucose-sensing-for-diabetes-monitoring-recent-developments
#14
REVIEW
Danielle Bruen, Colm Delaney, Larisa Florea, Dermot Diamond
This review highlights recent advances towards non-invasive and continuous glucose monitoring devices, with a particular focus placed on monitoring glucose concentrations in alternative physiological fluids to blood.
August 12, 2017: Sensors
https://www.readbyqxmd.com/read/28805685/re-adaption-on-earth-after-spaceflights-affects-the-mouse-liver-proteome
#15
Viktoria Anselm, Svetlana Novikova, Victor Zgoda
Harsh environmental conditions including microgravity and radiation during prolonged spaceflights are known to alter hepatic metabolism. Our studies have focused on the analysis of possible changes in metabolic pathways in the livers of mice from spaceflight project "Bion-M 1". Mice experienced 30 days of spaceflight with and without an additional re-adaption period of seven days compared to control mice on Earth. To investigate mice livers we have performed proteomic profiling utilizing shotgun mass spectrometry followed by label-free quantification...
August 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28804907/allergic-contact-dermatitis-caused-by-isobornyl-acrylate-in-freestyle%C3%A2-libre-a-newly-introduced-glucose-sensor
#16
Anne Herman, Olivier Aerts, Marie Baeck, Magnus Bruze, Christophe De Block, An Goossens, Nils Hamnerius, Sara Huygens, Dominique Maiter, Dominique Tennstedt, Bernard Vandeleene, Martin Mowitz
BACKGROUND: Glucose sensors, such as FreeStyle® Libre, are innovative medical devices developed for diabetes patients as a replacement for classic glucose meters, ensuring continuous glucose monitoring without the disadvantage of regular skin finger pricks. OBJECTIVES: To report several cases of allergic contact dermatitis caused by FreeStyle® Libre, and to report on isobornyl acrylate as a culprit allergen. PATIENTS AND METHODS: Fifteen patients presented with allergic contact dermatitis caused by FreeStyle® Libre...
August 14, 2017: Contact Dermatitis
https://www.readbyqxmd.com/read/28803820/titration-a-randomized-study-to-assess-2-treatment-algorithms-with-new-insulin-glargine-300-units-ml
#17
Jean-François Yale, Lori Berard, Mélanie Groleau, Pasha Javadi, John Stewart, Stewart B Harris
OBJECTIVE: It was uncertain whether an algorithm that involves increasing insulin dosages by 1 unit/day may cause more hypoglycemia with the longer-acting insulin glargine 300 units/mL (GLA-300). The objective of this study was to compare safety and efficacy of 2 titration algorithms, INSIGHT and EDITION, for GLA-300 in people with uncontrolled type 2 diabetes mellitus, mainly in a primary care setting. METHODS: This was a 12-week, open-label, randomized, multicentre pilot study...
August 10, 2017: Canadian Journal of Diabetes
https://www.readbyqxmd.com/read/28803479/design-of-cyclic-peptides-based-glucose-receptors-and-their-application-in-glucose-sensing
#18
Chao Li, Xin Chen, Fuyuan Zhang, Xingxing He, Guozhen Fang, Jifeng Liu, Shuo Wang
Glucose assay is of great scientific significance in clinical diagnostics and bioprocess monitoring and to design new glucose receptor is necessary for development of more sensitive, selective and robust glucose detection techniques. Herein, a series of cyclic peptides (CPs) glucose receptor were designed to mimic the binding sites of glucose binding protein (GBP) and CPs' sequence contained amino acid sites Asp, Asn, His, Asp, Arg, which constituted the first layer interactions of GBP. The properties of these CPs used as a glucose receptor or substitute for the GBP were studied by using quartz crystal microbalance (QCM) technique...
August 14, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28802779/pharmacological-aspects-of-closed-loop-insulin-delivery-for-type-1-diabetes
#19
REVIEW
Chukwuma Uduku, Nick Oliver
Insulin deficiency and impaired glucose homeostasis are hallmarks of type 1 diabetes. Since the discovery of insulin, pharmacological and clinical developments have endeavoured to replicate its endogenous pharmacokinetics (PK) and pharmacodynamics (PD). Closed loop insulin delivery systems operate as an artificial pancreas by making automated insulin dose adjustments based on real time continuous glucose monitoring. The increasing adoption of continuous insulin pump therapy and evolving technological advances have seen significant progress in the development of closed loop insulin delivery systems...
August 10, 2017: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/28802292/even-minimal-polishing-of-an-indian-parboiled-brown-rice-variety-leads-to-increased-glycemic-responses
#20
Shanmugam Shobana, Nagarajan Lakshmipriya, Mookambika Ramya Bai, Rajagopal Gayathri, Vaidya Ruchi, Vasudevan Sudha, Nagappa G Malleshi, Kamala Krishnaswamy, C-J K Henry, Ranjit Mohan Anjana, Ranjit Unnikrishnan, Viswanathan Mohan
BACKGROUND AND OBJECTIVES: To evaluate the effect of polishing on the glycemic properties of Indian parboiled brown rice. METHODS AND STUDY DESIGN: We evaluated the effect of different degrees of polishing on the glycemic and insulinemic responses of Bapatla (BPT-5204), Indian parboiled Indica rice variety. Brown rice (BR), under milled rice (UMR) and white rice (WR) with 2.3% and 9.7% degree of polishing (DOP), respectively, were prepared and evaluated for the glycemic properties...
2017: Asia Pacific Journal of Clinical Nutrition
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