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https://www.readbyqxmd.com/read/28212888/long-term-use-of-metformin-in-idiopathic-cyclic-edema-report-of-thirteen-cases-and-review-of-the-literature
#1
S Soudet, M Lambert, G Lefèvre, H Maillard, D Huglo, P Y Hatron
INTRODUCTION: Idiopathic cyclic edema (ICE) is a rare cause of edema. To date, there is no standard of care. The physiopathology of ICE could be explained by an impairment of capillary permeability. In 1995, a study demonstrated the efficacy of metformin on symptoms and capillary permeability. We evaluated ICE-patients who were treated with metformin in our department. METHODS: We retrospectively included patients diagnosed for ICE between January 1997 and October 2013...
February 14, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28212524/role-of-nrf2-and-protective-effects-of-metformin-against-tobacco-smoke-induced-cerebrovascular-toxicity
#2
Shikha Prasad, Ravi K Sajja, Mohammad Abul Kaisar, Jee Hyun Park, Heidi Villalba, Taylor Liles, Thomas Abbruscato, Luca Cucullo
Cigarette smoking (CS) is associated with vascular endothelial dysfunction in a causative way primarily related to the TS content of reactive oxygen species (ROS), nicotine, and inflammation. TS promotes glucose intolerance and increases the risk of developing type-2 diabetes mellitus (2DM) with which it shares other pathogenic traits including the high risk of cerebrovascular and neurological disorders like stroke via ROS generation, inflammation, and blood-brain barrier (BBB) impairment. Herein we provide evidence of the role played by nuclear factor erythroid 2-related factor (Nrf2) in CS-induced cerebrobvascular/BBB impairments and how these cerebrovascular harmful effects can be circumvented by the use of metformin (MF; a widely prescribed, firstline anti-diabetic drug) treatment...
February 12, 2017: Redox Biology
https://www.readbyqxmd.com/read/28211632/amp-activated-protein-kinase-activator-a-769662-increases-intracellular-calcium-and-atp-release-from-astrocytes-in-an-ampk-independent-manner
#3
Julia M Vlachaki Walker, Josephine L Robb, Ana M Cruz, Amrinder Malhi, Paul G Weightman Potter, Michael L J Ashford, Rory J McCrimmon, Kate L J Ellacott, Craig Beall
AIM: Astrocytes are the main sources of extracellular ATP (eATP) within the brain, which functions as a gliotransmitter, capable of modulating neuronal and astrocytic activity. These cells play an important role in regulating energy homeostasis partly via astrocyte-derived ATP. Given the role of AMPK in regulating intracellular ATP levels, we hypothesised that AMPK may alter ATP release from astrocytes. METHODS: Measurements of ATP release were made from human U373 astrocytoma cells, primary mouse hypothalamic (HTAS) and cortical astrocytes (CRTAS) and wild type and AMPK α1/α2 null mouse embryonic fibroblasts (MEFs)...
February 17, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28211604/delays-in-treatment-intensification-with-oral-antidiabetic-drugs-and-risk-of-microvascular-and-macrovascular-events-in-patients-with-poor-glycemic-control-an-individual-patient-simulation-study
#4
Henry J Folse, Jayanti Mukherjee, John J Sheehan, Alexandra J Ward, Ryan L Pelkey, Tuan A Dinh, Lei Qin, Jennifer Kim
AIMS: Despite guideline recommendations, many patients with type 2 diabetes on oral antidiabetic drugs (OADs) whose HbA1c results remain above target do not experience timely treatment intensification. This study uses the Archimedes Model® to estimate the consequences of delays in OAD treatment intensification on glycemic control and long-term outcomes at 5 and 20 years. MATERIALS AND METHODS: Using real world data, we modeled a cohort of hypothetical patients with HbA1c ≥8%, on metformin, with no history of insulin use...
February 17, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28210856/the-effect-of-metformin-on-the-recurrence-of-colorectal-adenoma-in-diabetic-patients-with-previous-colorectal-adenoma
#5
Min Seok Han, Hyun Jung Lee, Soo Jung Park, Sung Pil Hong, Jae Hee Cheon, Won Ho Kim, Tae Il Kim
PURPOSE: Existing studies suggest that metformin lowers the risk and mortality of colorectal cancer. However, the effect of metformin on the suppression and prevention of colorectal adenomas is not clear. The aim of this study was to evaluate the effect of metformin on the recurrence of colorectal adenoma in diabetic patients with previous colorectal adenoma. METHODS: Among 423 diabetic patients who underwent surveillance colonoscopy after resection of colorectal adenoma between 2005 and 2011, 257 patients were retrospectively reviewed...
February 16, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28209925/the-stress-polarity-pathway-ampk-giv-es-protection-against-metabolic-insults
#6
Pradipta Ghosh
Loss of cell polarity impairs organ development and function; it can also serve as one of the first triggers for oncogenesis. In 2006-2007 two groups simultaneously reported the existence of a special pathway for maintaining epithelial polarity in the face of environmental stressors. In this pathway, AMPK, a key sensor of metabolic stress stabilizes tight junctions, preserves cell polarity, and thereby, maintains epithelial barrier functions. Accumulating evidence since has shown that pharmacologic activation of AMPK by Metformin protects the epithelial barrier against multiple environmental and pathological stressful states and suppresses tumorigenesis...
February 15, 2017: Aging
https://www.readbyqxmd.com/read/28209916/diabetic-concentrations-of-metformin-inhibit-platelet-mediated-ovarian-cancer-cell-progression
#7
Rafaela Erices, Sofía Cubillos, Raúl Aravena, Felice Santoro, Monica Marquez, Renan Orellana, Carolina Ramírez, Pamela González, Patricia Fuenzalida, María Loreto Bravo, Bárbara Oliva, Sumie Kato, Carolina Ibañez, Jorge Brañes, Erasmo Bravo, Catalina Alonso, Karen García, Clemente Arab, Vicente A Torres, Alejandro S Godoy, Jaime Pereira, Galdo Bustos, Julio Cesar Cardenas, Mauricio A Cuello, Gareth I Owen
Clinical studies have suggested a survival benefit in ovarian cancer patients with type 2 diabetes mellitus taking metformin, however the mechanism by which diabetic concentrations of metformin could deliver this effect is still poorly understood. Platelets not only represent an important reservoir of growth factors and angiogenic regulators, they are also known to participate in the tumor microenvironment implicated in tumor growth and dissemination. Herein, we investigated if diabetic concentrations of metformin could impinge upon the previously reported observation that platelet induces an increase in the tube forming capacity of endothelial cells (angiogenesis) and upon ovarian cancer cell aggressiveness...
February 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28208942/comparing-the-effects-of-agnugol-and-metformin-on-oligomenorrhea-in-patients-with-polycystic-ovary-syndrome-a-randomized-clinical-trial
#8
Arezoo Shayan, Seyedeh Zahra Masoumi, Fatemeh Shobeiri, Shahin Tohidi, Arash Khalili
INTRODUCTION: Polycystic Ovarian Syndrome (PCOS) is the most common endocrinopathy and cause of oligomenorrhea in women. AIM: The present study was conducted with the aim to compare the effect of Agnugol and Metformin drugs on oligomenorrhea in patients with PCOS. MATERIALS AND METHODS: This study was a clinical trial on 120 women with PCOS and had oligomenorrhea, referring to a gynaecology clinic Fatemieh, Hamadan city, Iran, 2015. Women were randomly divided into 2 groups using permutation blocks (getting the medications Agnugol and Metformin) and were treated with drugs Agnugol and Metformin for 3 months...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208875/erectile-dysfunction-and-low-sex-drive-in-men-with-type-2-dm-the-potential-role-of-diabetic-pharmacotherapy
#9
Hayder M Al-Kuraishy, Ali I Al-Gareeb
INTRODUCTION: Diabetic men with erectile dysfunction have not been widely studied. They have low testosterone levels, causing low sex drive and erectile dysfunction. AIM: To assess the erectile dysfunction and sex drive in relation to testosterone serum levels in type 2 Diabetes Mellitus (DM) patients. MATERIALS AND METHODS: A total of 64 patients with type 2 DM were enrolled in this cross-sectional study, according to the treatment types they were divided into three groups, group (A): 34 patients treated with metformin, group (B): 30 patients treated with sulfonylurea and group (C): 27 healthy normal non-diabetic men are taken as control...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208838/the-effect-of-metformin-and-gant61-combinations-on-the-radiosensitivity-of-prostate-cancer-cells
#10
Annelies Gonnissen, Sofie Isebaert, Chad M McKee, Ruth J Muschel, Karin Haustermans
The anti-diabetes drug metformin has been shown to have anti-neoplastic effects in several tumor models through its effects on energy metabolism and protein synthesis. Recent studies show that metformin also targets Hedgehog (Hh) signaling, a developmental pathway re-activated in several tumor types, including prostate cancer (PCa). Furthermore, we and others have shown that Hh signaling is an important target for radiosensitization. Here, we evaluated the combination of metformin and the Hh inhibitor GANT61 (GLI-ANTagonist 61) with or without ionizing radiation in three PCa cell lines (PC3, DU145, 22Rv1)...
February 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28208582/nutrients-in-energy-and-one-carbon-metabolism-learning-from-metformin-users
#11
REVIEW
Fedra Luciano-Mateo, Anna Hernández-Aguilera, Noemi Cabre, Jordi Camps, Salvador Fernández-Arroyo, Jose Lopez-Miranda, Javier A Menendez, Jorge Joven
Metabolic vulnerability is associated with age-related diseases and concomitant co-morbidities, which include obesity, diabetes, atherosclerosis and cancer. Most of the health problems we face today come from excessive intake of nutrients and drugs mimicking dietary effects and dietary restriction are the most successful manipulations targeting age-related pathways. Phenotypic heterogeneity and individual response to metabolic stressors are closely related food intake. Understanding the complexity of the relationship between dietary provision and metabolic consequences in the long term might provide clinical strategies to improve healthspan...
February 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28207836/tmg-123-a-novel-glucokinase-activator-exerts-durable-effects-on-hyperglycemia-without-increasing-triglyceride-in-diabetic-animal-models
#12
Yoshinori Tsumura, Yu Tsushima, Azusa Tamura, Makiko Hasebe, Masanobu Kanou, Hirotsugu Kato, Tsunefumi Kobayashi
Glucokinase (GK) plays a critical role for maintaining glucose homeostasis with regulating glucose uptake in liver and insulin secretion in pancreas. GK activators have been reported to decrease blood glucose levels in patients with type 2 diabetes mellitus. However, clinical development of GK activators has failed due to the loss of glucose-lowering effects and increased plasma triglyceride levels after chronic treatment. Here, we generated a novel GK activator, TMG-123, examined its in vitro and in vivo pharmacological characteristics, and evaluated its risks of aforementioned clinical issues...
2017: PloS One
https://www.readbyqxmd.com/read/28207048/mitigating-regulatory-impact-the-case-of-partial-price-controls-on-metformin-in-india
#13
Ajay Bhaskarabhatla, Chirantan Chatterjee, Priyatam Anurag, Enrico Pennings
No abstract text is available yet for this article.
March 1, 2017: Health Policy and Planning
https://www.readbyqxmd.com/read/28206714/opposite-effects-of-a-glucokinase-activator-and-metformin-on-glucose-regulated-gene-expression-in-hepatocytes
#14
Ziad H Al-Oanzi, Sophia Fountana, Tabassum Moonira, Susan J Tudhope, John L Petrie, Ahmed Alshawi, Gillian Patman, Catherine Arden, Helen L Reeves, Loranne Agius
AIM: Small molecule activators of glucokinase (GKAs) have been extensively explored as potential anti-hyperglycaemic drugs for type 2 diabetes (T2D). Several GKAs were remarkably effective at lowering blood glucose during early therapy but then lost their glycaemic efficacy chronically during clinical trials. We used rat hepatocytes to test the hypothesis that GKAs raise hepatocyte glucose 6-phosphate, (G6P, the glucokinase product) and down-stream metabolites with consequent repression of the liver glucokinase gene (Gck)...
February 16, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28205322/efficacy-and-safety-of-autoinjected-exenatide-once-weekly-suspension-versus-sitagliptin-or-placebo-with-metformin-in-patients-with-type-2-diabetes-the-duration-neo-2-randomized-clinical-study
#15
Kishore M Gadde, Marion L Vetter, Nayyar Iqbal, Elise Hardy, Peter Öhman
AIMS: Glucagon-like peptide-1 receptor agonists and dipeptidyl peptidase-4 inhibitors treat type 2 diabetes through incretin-signaling pathways. This study compared the efficacy and safety of the glucagon-like peptide-1 receptor agonist exenatide once-weekly (Miglyol) suspension for autoinjection (QWS-AI) with the dipeptidyl peptidase-4 inhibitor sitagliptin or placebo. MATERIALS AND METHODS: In this open-label, multicenter study of patients with type 2 diabetes who had suboptimal glycemic control on metformin monotherapy, 365 patients were randomized to receive exenatide 2...
February 16, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28203479/metformin-impairs-spatial-memory-and-visual-acuity-in-old-male-mice
#16
Nopporn Thangthaeng, Margaret Rutledge, Jessica M Wong, Philip H Vann, Michael J Forster, Nathalie Sumien
Metformin is an oral anti-diabetic used as first-line therapy for type 2 diabetes. Because benefits of metformin extend beyond diabetes to other age-related pathology, and because its effect on gene expression profiles resembles that of caloric restriction, metformin has a potential as an anti-aging intervention and may soon be assessed as an intervention to extend healthspan. However, beneficial actions of metformin in the central nervous system have not been clearly established. The current study examined the effect of chronic oral metformin treatment on motor and cognitive function when initiated in young, middle-aged, or old male mice...
February 2017: Aging and Disease
https://www.readbyqxmd.com/read/28202017/association-between-metformin-use-and-below-the-knee-arterial-calcification-score-in-type-2-diabetic-patients
#17
Aurélien Mary, Agnes Hartemann, Sophie Liabeuf, Carole Elodie Aubert, Salim Kemel, Joe Elie Salem, Philippe Cluzel, Aurélie Lenglet, Ziad A Massy, Jean-Daniel Lalau, Romuald Mentaverri, Olivier Bourron, Saïd Kamel
BACKGROUND: Vascular calcification (VC) is common in type 2 diabetes, and is associated with cardiovascular complications. Recent preclinical data suggest that metformin inhibits VC both in vitro and in animal models. However, metformin's effects in patients with diabetic VC have not previously been characterized. The present study investigated the association between metformin use and lower-limb arterial calcification in patients with type 2 diabetes and high cardiovascular risk. METHODS: The DIACART cross-sectional cohort study included 198 patients with type 2 diabetes but without severe chronic kidney disease...
February 15, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28199824/protective-effect-of-metformin-against-tuberculosis-infections-in-diabetic-patients-an-observational-study-of-south-indian-tertiary-healthcare-facility
#18
Marupuru Srujitha, Senapati Padmanav, P Swathi, M Sonal Sekhar, M K Unnikrishnan, K Manu Mohan
BACKGROUND: World Health Organization estimated that people with diabetes (DM) are at 2-3 times the higher risk for tuberculosis (TB). Studies have shown that DM not only increases the risk of active TB but, also puts co-affected person at increased risk of poor outcomes. OBJECTIVES: To determine the protective effect of metformin against TB in DM patients and also, to investigate the relationship between poor glycemic control and TB. METHODS: A case-control study was conducted over 8 months, where cases and controls were selected based on the inclusion and exclusion criteria of the study...
February 12, 2017: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28198702/epigenetic-clock-analysis-of-diet-exercise-education-and-lifestyle-factors
#19
Austin Quach, Morgan E Levine, Toshiko Tanaka, Ake T Lu, Brian H Chen, Luigi Ferrucci, Beate Ritz, Stefania Bandinelli, Marian L Neuhouser, Jeannette M Beasley, Linda Snetselaar, Robert B Wallace, Philip S Tsao, Devin Absher, Themistocles L Assimes, James D Stewart, Yun Li, Lifang Hou, Andrea A Baccarelli, Eric A Whitsel, Steve Horvath
Behavioral and lifestyle factors have been shown to relate to a number of health-related outcomes, yet there is a need for studies that examine their relationship to molecular aging rates. Toward this end, we use recent epigenetic biomarkers of age that have previously been shown to predict all-cause mortality, chronic conditions, and age-related functional decline. We analyze cross-sectional data from 4,173 postmenopausal female participants from the Women's Health Initiative, as well as 402 male and female participants from the Italian cohort study, Invecchiare nel Chianti...
February 14, 2017: Aging
https://www.readbyqxmd.com/read/28196954/metformin-and-thyroid-disease
#20
Xianghui Meng, Shuhang Xu, Guofang Chen, Michael Derwahl, Chao Liu
An intriguing area of research in thyroidology is the recently discovered association of insulin resistance with thyroid functional and morphological abnormalities. Individuals with hyperinsulinemia have larger thyroid gland and a higher prevalence of thyroid nodules and cancer. Accordingly, patients treated with metformin have a smaller thyroid volume and a lower risk of incident goiter, thyroid nodule and cancer. Multiple studies in vitro and in vivo have demonstrated that metformin can inhibit the growth of thyroid cells and different types of thyroid cancer cells by affecting the insulin/IGF-1 and mTOR pathways...
February 14, 2017: Journal of Endocrinology
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