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https://www.readbyqxmd.com/read/28449402/postprandial-renal-haemodynamic-effect-of-lixisenatide-versus-once-daily-insulin-glulisine-in-type-2-diabetes-patients-on-insulin-glargine-an-8-week-randomised-open-label-trial
#1
Lennart Tonneijck, Marcel H A Muskiet, Mark M Smits, Trynke Hoekstra, Mark H H Kramer, A H Jan Danser, Michaela Diamant, Jaap A Joles, Daniël H van Raalte
AIMS: To determine whether lixisenatide, a prandial short-acting glucagon-like peptide receptor agonist (GLP-1RA), ameliorates postprandial glomerular hyperfiltration in type 2 diabetes mellitus (T2DM)-patients compared to insulin-glulisine (iGlu) . METHODS: Postprandial renal haemodynamic effects of 8-week treatment with lixisenatide 20 µg versus once-daily titrated iGlu were measured in 35 overweight T2DM-patients inadequately controlled on insulin-glargine, with or without metformin (mean±SD age 62 ± 7years, HbA1c 8...
April 27, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28446625/use-of-noncontrast-computed-tomography-and-computed-tomographic-perfusion-in-predicting-intracerebral-hemorrhage-after-intravenous-alteplase-therapy
#2
Connor Batchelor, Pooneh Pordeli, Christopher D d'Esterre, Mohamed Najm, Fahad S Al-Ajlan, Mari E Boesen, Connor McDougall, Lisa Hur, Enrico Fainardi, Jai Jai Shiva Shankar, Marta Rubiera, Alexander V Khaw, Michael D Hill, Andrew M Demchuk, Tolulope T Sajobi, Mayank Goyal, Ting-Yim Lee, Richard I Aviv, Bijoy K Menon
BACKGROUND AND PURPOSE: Intracerebral hemorrhage is a feared complication of intravenous alteplase therapy in patients with acute ischemic stroke. We explore the use of multimodal computed tomography in predicting this complication. METHODS: All patients were administered intravenous alteplase with/without intra-arterial therapy. An age- and sex-matched case-control design with classic and conditional logistic regression techniques was chosen for analyses. Outcome was parenchymal hemorrhage on 24- to 48-hour imaging...
April 26, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28445900/central-and-peripheral-glucagon-reduces-hyperlipidemia-in-rats-and-hamsters
#3
Vishal Patel, Amit Joharapurkar, Samadhan Kshirsagar, Hiren M Patel, Dheerendra Pandey, Dipam Patel, Kiran Shah, Rajesh Bahekar, Gaurang B Shah, Mukul R Jain
Increased lipid levels in blood contribute to increasing the risk of diabetic complications. Glucagon exerts lipid lowering effects in diabetic state. However, the mechanism behind the lipid reduction by glucagon independent of glucose homeostasis is not well understood. We assessed the actions of glucagon on lipid modulation in blood and markers in liver in hyperlipidemic hamsters and rats. Male Sprague Dawley rats and Golden Syrian hamsters on a hyperlipidemic diet for 2 weeks were administered a single dose of glucagon by subcutaneous (SC, 150 and 300 µg/kg) or intracerebroventricular (ICV, 15 and 30 µg/animal) route...
April 26, 2017: Drug Research
https://www.readbyqxmd.com/read/28438610/hyperglycemia-increases-interstitial-cells-of-cajal-via-mapk1-and-mapk3-signaling-to-etv1-and-kit-leading-to-rapid-gastric-emptying
#4
Yujiro Hayashi, Yoshitaka Toyomasu, Siva Arumugam Saravanaperumal, Michael R Bardsley, John A Smestad, Andrea Lorincz, Seth T Eisenman, Gianluca Cipriani, Molly H Nelson Holte, Fatimah J Al Khazal, Sabriya A Syed, Gabriella B Gajdos, Kyoung Moo Choi, Gary J Stoltz, Katie E Miller, Michael L Kendrick, Brian P Rubin, Simon J Gibbons, Adil E Bharucha, David R Linden, Louis James Maher, Gianrico Farrugia, Tamas Ordog
BACKGROUND & AIMS: Depletion of interstitial cells of Cajal (ICCs) is common in diabetic gastroparesis. However, in approximately 20% of patients with diabetes, gastric emptying (GE) is accelerated. GE is also faster in obese individuals, and is associated with increased blood levels of glucose in patients with type 2 diabetes. To understand the fate of ICCs in hyperinsulinemic, hyperglycemic states characterized by rapid GE, we studied mice with mutation of the leptin receptor (Lepr(db/db)), which in our colony had accelerated GE...
April 21, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28435052/neurovascular-neuroenergetic-coupling-axis-in-the-brain-master-regulation-by-nitric-oxide-and-consequences-in-aging-and-neurodegeneration
#5
REVIEW
Cátia F Lourenço, Ana Ledo, Rui M Barbosa, João Laranjinha
The strict energetic demands of the brain require that nutrient supply and usage be fine-tuned in accordance with the specific temporal and spatial patterns of ever-changing levels of neuronal activity. This is achieved by adjusting local cerebral blood flow (CBF) as a function of activity level - neurovascular coupling - and by changing how energy substrates are metabolized and shuttled amongst astrocytes and neurons - neuroenergetic coupling. Both activity-dependent increase of CBF and O2 and glucose utilization by active neural cells are inextricably linked, establishing a functional metabolic axis in the brain, the neurovascular-neuroenergetic coupling axis...
April 20, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28434735/effects-of-graded-removal-of-lysine-from-an-intravenously-infused-amino-acid-mixture-on-lactation-performance-and-mammary-amino-acid-metabolism-in-lactating-goats
#6
C L Guo, Y T Li, X Y Lin, M D Hanigan, Z G Yan, Z Y Hu, Q L Hou, F G Jiang, Z H Wang
To investigate responses of milk protein synthesis and mammary AA metabolism to a graded decrease of postruminal Lys supply, 4 lactating goats fitted with jugular vein, mammary vein, and carotid artery catheters and transonic blood flow detectors on the external pudic artery were used in a 4 × 4 Latin square experiment. Goats were fasted for 24 h and then received a 9-h intravenous infusion of an AA mixture plus glucose. Milk yield was recorded and samples were taken in h 2 to 8 of the infusion period; a mammary biopsy was performed in the last hour...
April 20, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28431091/suppression-of-oral-sweet-taste-sensation-with-gymnema-sylvestre-affects-postprandial-gastrointestinal-blood-flow-and-gastric-emptying-in-humans
#7
Hideaki Kashima, Kohei Eguchi, Kanae Miyamoto, Masaki Fujimoto, Masako Yamaoka Endo, Nami Aso-Someya, Toshio Kobayashi, Naoyuki Hayashi, Yoshiyuki Fukuba
An oral sweet taste sensation (OSTS) exaggerates digestive activation transiently, but whether it has a role after swallowing a meal is not known. Gymnema sylvestre (GS) can inhibit the OSTS in humans. We explored the effect of the OSTS of glucose intake on gastrointestinal blood flow, gastric emptying, blood-glucose, and plasma-insulin responses during the postprandial phase. Eight participants ingested 200 g (50 g × 4 times) of 15% glucose solution containing 100 mg of 13C-sodium acetate after rinsing with 25 mL of 2...
May 1, 2017: Chemical Senses
https://www.readbyqxmd.com/read/28425973/edim-tktl1-apo10-blood-test-an-innate-immune-system-based-liquid-biopsy-for-the-early-detection-characterization-and-targeted-treatment-of-cancer
#8
REVIEW
Johannes F Coy
Epitope detection in monocytes (EDIM) represents a liquid biopsy exploiting the innate immune system. Activated monocytes (macrophages) phagocytose unwanted cells/cell fragments from the whole body including solid tissues. As they return to the blood, macrophages can be used for a non-invasive detection of biomarkers, thereby providing high sensitivity and specificity, because the intracellular presence of biomarkers is due to an innate immune response. Flow cytometry analysis of blood enables the detection of macrophages and phagocytosed intracellular biomarkers...
April 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28425701/the-effects-of-glutamate-receptor-activation-on-local-oxygen-changes
#9
Lindsay Walton, Nick G Boustead, Susan Carroll, R Mark Wightman
Glutamate is ubiquitous throughout the brain and serves as the primary excitatory neurotransmitter. Neurons require energy to fire, and energetic substrates (i.e., O2, glucose) are renewed via cerebral blood flow (CBF) to maintain metabolic homeostasis. Magnetic resonance brain functionality studies rely on the assumption that CBF and neuronal activity are coupled consistently throughout the brain; however, the origin of neuronal activity does not always coincide with signals indicative of energy consumption (e...
April 20, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28421806/diet-and-liver-apoptosis-in-rats-a-particular-metabolic-pathway
#10
Maria Emilia Lopes Monteiro, Analucia Rampazzo Xavier, Vilma Blondet Azeredo
INTRODUCTION: Various studies have indicated an association between modifi cation in dietary macronutrient composition and liver apoptosis. OBJECTIVE: To explain how changes in metabolic pathways associated with a high-protein, high-fat, and low-carbohydrate diet causes liver apoptosis. METHODS: Two groups of rats were compared. An experimental diet group (n = 8) using a high-protein (59.46%), high-fat (31.77%), and low-carbohydrate (8.77%) diet versus a control one (n = 9) with American Institute of Nutrition (AIN)-93-M diet...
March 30, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28417947/pro-angiogenic-effects-of-low-dose-ethoxidine-in-a-murine-model-of-ischemic-hindlimb-correlation-between-ethoxidine-levels-and-increased-activation-of-the-nitric-oxide-pathway
#11
Nicolas Clere, Kim Hung Thien To, Samuel Legeay, Samuel Bertrand, Jean Jacques Helesbeux, Olivier Duval, Sébastien Faure
Ethoxidine, a benzo[c]phenanthridine derivative, has been identified as a potent inhibitor of topoisomerase I in cancer cell lines. Our group has reported paradoxical properties of ethoxidine in cellular processes leading to angiogenesis on endothelial cells. Because low concentration ethoxidine is able to favor angiogenesis, the present study aimed to investigate the ability of 10(-9) M ethoxidine to modulate neovascularization in a model of mouse hindlimb ischemia. After inducing unilateral hindlimb ischemia, mice were treated for 21 days with glucose 5% or with ethoxidine, to reach plasma concentrations equivalent to 10(-9) M...
April 12, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28417297/regulation-of-the-glucose-supply-from-capillary-to-tissue-examined-by-developing-a-capillary-model
#12
Akitoshi Maeda, Yukiko Himeno, Masayuki Ikebuchi, Akinori Noma, Akira Amano
A new glucose transport model relying upon diffusion and convection across the capillary membrane was developed, and supplemented with tissue space and lymph flow. The rate of glucose utilization (J util) in the tissue space was described as a saturation function of glucose concentration in the interstitial fluid (C glu,isf), and was varied by applying a scaling factor f to J max. With f = 0, the glucose diffusion ceased within ~20 min. While, with increasing f, the diffusion was accelerated through a decrease in C glu,isf, but the convective flux remained close to resting level...
April 17, 2017: Journal of Physiological Sciences: JPS
https://www.readbyqxmd.com/read/28408020/risk-stratification-for-patients-in%C3%A2-cardiogenic-shock-after-acute%C3%A2-myocardial%C3%A2-infarction
#13
Janine Pöss, Jelena Köster, Georg Fuernau, Ingo Eitel, Suzanne de Waha, Taoufik Ouarrak, Johan Lassus, Veli-Pekka Harjola, Uwe Zeymer, Holger Thiele, Steffen Desch
BACKGROUND: Mortality in cardiogenic shock (CS) remains high. Early risk stratification is crucial to make adequate treatment decisions. OBJECTIVES: This study sought to develop an easy-to-use, readily available risk prediction score for short-term mortality in patients with CS, derived from the IABP-SHOCK II (Intraaortic Balloon Pump in Cardiogenic Shock) trial. METHODS: The score was developed using a stepwise multivariable regression analysis...
April 18, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28407661/effect-of-saxagliptin-on-circulating-endothelial-progenitor-cells-and-endothelial-function-in-newly-diagnosed-type-2-diabetic-patients
#14
Fang Li, Jiachao Chen, Fei Leng, Zhiqiang Lu, Yan Ling
Endothelial dysfunction is associated with the risk of cardiovascular complications in diabetic patients. Endothelial progenitor cells (EPCs) and flow-mediated dilation (FMD) are common markers of endothelial function. In this study, we aim to investigate whether the DPP-4 inhibitor saxagliptin modulate EPCs number and FMD in newly diagnosed, treatment-naive type 2 diabetic patients. This was a controlled, randomized, open-label clinical trial. Saxagliptin group and metformin group consumed either saxagliptin 5 mg per day or metformin 1 500 mg per day respectively for 12 weeks...
April 13, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28403936/the-short-term-and-long-term-effects-of-bariatric-metabolic-surgery-on-subcutaneous-adipose-tissue-inflammation-in-humans
#15
Derek K Hagman, Ilona Larson, Jessica N Kuzma, Gail Cromer, Karen Makar, Katya B Rubinow, Karen E Foster-Schubert, Brian van Yserloo, Peter S Billing, Robert W Landerholm, Matthew Crouthamel, David R Flum, David E Cummings, Mario Kratz
CONTEXT: The mechanisms mediating the short- and long-term improvements in glucose homeostasis following bariatric/metabolic surgery remain incompletely understood. OBJECTIVE: To investigate whether a reduction in adipose tissue inflammation plays a role in the metabolic improvements seen after bariatric/metabolic surgery, both in the short-term and longer-term. DESIGN: Fasting blood and subcutaneous abdominal adipose tissue were obtained before (n=14), at one month (n=9), and 6-12months (n=14) after bariatric/metabolic surgery from individuals with obesity who were not on insulin or anti-diabetes medication...
May 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28403591/comparison-of-the-clinical-parameters-of-benign-prostate-hyperplasia-in-diabetic-and-non-diabetic-patients
#16
Levent Ozcan, Huseyin Besiroglu, Murat Dursun, Emre Can Polat, Alper Otunctemur, Emin Ozbek
OBJECTIVE: We evaluated the correlation between benign prostate hyperplasia (BPH) measures and diabetes mellitus in men with benign prostate hyperplasia in a prospective study. MATERIALS AND METHODS: Between 2008-2012, 100 diabetic and 200 non diabetic patients undergoing surgery due to benign prostate hyperplasia were enrolled in the study. The parameters evaluated for each patients included prostate volume, fasting blood glucose, HbA1c, total testosterone, total prostatic specific antigen (T-PSA), triglicerides, total cholesterol and body mass index (BMI)...
March 31, 2017: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28396938/pravastatin-improves-postprandial-endothelial-dysfunction-and-hemorheological-deterioration-in-patients-with-effort-angina-pectoris
#17
Tomio Umemoto, Takanori Yasu, Kenshiro Arao, Nahoko Ikeda, Yasuto Horie, Hiroyuki Sugimura, Masanobu Kawakami, Hideo Fujita, Shin-Ichi Momomura
Postprandial hypertriglyceridemia and hyperglycemia may promote endothelial and hemorheological dysfunction. The present study investigated the effects of pravastatin on endothelial function and hemorheology in patients with stable angina pectoris (AP) before and after eating a test meal. We recruited 26 patients with stable AP who had impaired glucose tolerance and mild dyslipidemia and six healthy men as controls to assess endothelial function and hemorheological behavior. In each group, we measured forearm blood flow (FBF) during post-ischemic reactive hyperemia and obtained blood samples before and 2 h after the test meal...
April 10, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28394747/risk-and-protective-factors-associated-with-surgical-infections-among-spine-patients
#18
REVIEW
Alyssa G Blood, Melanie F Sandoval, Evalina Burger, Katherine Halverson-Carpenter
BACKGROUND: The purpose of the study was to identify patient-specific and procedure-specific risk and protective factors associated with post-operative surgical site infections (SSIs) among surgical spine patients. METHODS: CINAHL, PubMed, Ovid, Medline, and EBSCO databases were searched for articles within the past 10 years (January 2003-March 2015). The keywords and combinations used in the search included: Spine surgery, post-operative infection, risk factors, orthopedic infections...
April 2017: Surgical Infections
https://www.readbyqxmd.com/read/28391015/administration-of-secretoneurin-is-protective-in-hypoxic-ischemic-neonatal-brain-injury-predominantly-in-the-hypoxic-only-hemisphere
#19
Anna Posod, Karina Wechselberger, Ruslan Iljitsch Stanika, Gerald J Obermair, Karina Wegleiter, Eva Huber, Martina Urbanek, Ursula Kiechl-Kohlendorfer, Elke Griesmaier
Neonatal brain injury is a problem of global importance. To date, no causal therapies are available. A substance with considerable therapeutic potential is the endogenous neuropeptide secretoneurin (SN), which has proven to be beneficial in adult stroke. The aim of this study was to assess its effect in neonatal hypoxic-ischemic brain injury models. In vitro, primary hippocampal neurons were pre-treated with vehicle, 1µg/ml, 10µg/ml, or 50µg/ml SN and subjected to oxygen-glucose deprivation (OGD) for six hours...
April 6, 2017: Neuroscience
https://www.readbyqxmd.com/read/28374151/an-update-on-the-potential-role-of-c-peptide-in-diabetes-and-osteoporosis
#20
Arturo Pujia, Carmine Gazzaruso, Tiziana Montalcini
PURPOSE: C-peptide secretion is deficient or absent in type 1 diabetes mellitus. It is well accepted that insulin replacement therapy cannot prevent the development of long-term diabetes-related complications, which can often be disabling or even life-threatening. Several cross-sectional investigations have suggested that residual C-peptide production in patients with type 1 diabetes mellitus would help prevent a number of complications. In animal models of diabetes and in patients with type 1 diabetes mellitus, C-peptide replacement improves renal function, skin and skeletal muscle blood flow, nerve conduction, glucose utilization, and other diabetes-related complications...
April 3, 2017: Endocrine
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