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https://www.readbyqxmd.com/read/28547133/hsf1-acetylation-decreases-its-transcriptional-activity-and-enhances-glucolipotoxicity-induced-apoptosis-in-rat-and-human-beta-cells
#1
Indri Purwana, Jun J Liu, Bernard Portha, Jean Buteau
AIMS/HYPOTHESIS: Heat shock factor protein 1 (HSF1) is a transcription factor that regulates the expression of key molecular chaperones, thereby orchestrating the cellular response to stress. This system was recently implicated in the control of insulin sensitivity and is therefore being scrutinised as a novel therapeutic avenue for type 2 diabetes. However, the regulation and biological actions of HSF1 in beta cells remain elusive. Herein, we sought to investigate the regulation of HSF1 in pancreatic beta cells and to study its potential role in cell survival...
May 25, 2017: Diabetologia
https://www.readbyqxmd.com/read/28546106/enhanced-dissolution-and-skin-permeation-profiles-of-epalrestat-with-%C3%AE-cyclodextrin-derivatives-using-a-cogrinding-method
#2
Takayuki Furuishi, Shoma Takahashi, Noriko Ogawa, Mihoko Gunji, Hiromasa Nagase, Toyofumi Suzuki, Tomohiro Endo, Haruhisa Ueda, Etsuo Yonemochi, Kazuo Tomono
Epalrestat (EPL) is a water-insoluble drug (14μM) that inhibits aldose reductase. This study investigated the interactions between β-cyclodextrin (CD) derivatives and EPL to determine the solubilizing effect on EPL from phase solubility diagrams. We improved the solubility of EPL in water by adding β-CD derivatives. Moreover, the solubility of EPL mixed with β-CD derivatives by cogrinding in a ball mill method was about 2-3 times higher than those of EPL with the same CD concentration (5mM) calculated from phase solubility diagrams...
May 22, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28545982/canonical-wnt-signaling-in-diabetic-retinopathy
#3
Qian Chen, Jian-Xing Ma
Diabetic retinopathy (DR) is a common eye complication of diabetes, and the pathogenic mechanism of DR is still under investigation. The canonical Wnt signaling pathway is an evolutionarily conserved pathway that plays fundamental roles in embryogenesis and adult tissue homeostasis. Wnt signaling regulates expression of multiple genes that control retinal development and eye organogenesis, and dysregulated Wnt signaling plays pathophysiological roles in many ocular diseases, including DR. This review highlights recent progress in studies of Wnt signaling in DR...
May 22, 2017: Vision Research
https://www.readbyqxmd.com/read/28544782/rationale-and-design-of-amphilimus-sirolimus-eluting-stents-versus-zotarolimus-eluting-stents-in-all-comers-requiring-percutaneous-coronary-intervention-recre8-a-multicenter-randomized-clinical-trial
#4
Rik Rozemeijer, Mèra Stein, Peter Frambach, Michiel Voskuil, Adriaan O Kraaijeveld, Ramón Rodríguez-Olivares, Leo Timmers, Bruno Pereira, Saskia Z Rittersma, Pierfrancesco Agostoni, Pieter A Doevendans, Pieter R Stella
BACKGROUND: Amphilimus sirolimus-eluting stents (A-SES) represent a novel elution technology in the current era of drug-eluting stents with promising results in patients with diabetes mellitus. At present no large trial has been designed to evaluate clinical outcomes of A-SES as compared to new-generation drug-eluting stents in unselected patients. Accordingly, we designed this trial to evaluate clinical noninferiority of A-SES as compared with zotarolimus-eluting stents (ZES) in a real-world, all-comers setting...
May 22, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28543688/glycated-human-albumin-alters-mitochondrial-respiration-in-preadipocyte-3t3-l1-cells
#5
Pascal Baret, Fanny Le Sage, Cynthia Planesse, Olivier Meilhac, Anne Devin, Emmanuel Bourdon, Philippe Rondeau
Diabetes and obesity are strongly associated with increased levels of circulating advanced glycation end products (AGEs) and reactive oxygen species (ROS). These two molecular phenomena affect the physiology of adipose tissue, a biological driver of the metabolic syndrome, leading to an inflammatory profile and insulin resistance, which could contribute to obesity/diabetes-associated complications, such as cardiovascular diseases. Herein, we investigated the impact of AGEs on mitochondrial bioenergetics in murine preadipocyte cells (3T3-L1) and cellular redox homeostasis...
May 22, 2017: BioFactors
https://www.readbyqxmd.com/read/28539166/can-secondary-osteoporosis-be-identified-when-screening-for-osteoporosis-with-digital-x-ray-radiogrammetry-initial-results-from-the-stockholm-osteoporosis-project-stop
#6
Michael L Wilczek, Johan Kälvesten, Ingrid Bergström, Ylva Pernow, Maria Sääf, Bo Freyschuss, Torkel B Brismar
OBJECTIVES: To identify causes of low age-adjusted bone mass at digital X-ray radiogrammetry (DXR) in individuals attending an osteoporosis screening program. STUDY DESIGN: In a descriptive observational cohort study, women aged 40-75 years who attended a general mammography screening program had their bone mass investigated with DXR and answered a questionnaire regarding several clinical risk factors for osteoporosis. Each month the 2% with the lowest Z-scores were selected for further clinical examination with DXA of the hip and lumbar spine and pre-defined blood tests...
July 2017: Maturitas
https://www.readbyqxmd.com/read/28534431/ameliorating-effect-of-anti-alzheimer-s-drugs-on-the-bidirectional-association-between-type-2-diabetes-mellitus-and-alzheimer-s-disease
#7
Amira S Ahmed, Rehab M Elgharabawy, Amal H Al-Najjar
Mild to severe forms of nervous system damage were exhibited by approximately 60-70% of diabetics. It is important to understand the association between type 2 diabetes mellitus and Alzheimer's disease. The aim of the present work is to understand the bidirectional association between type 2 diabetes and Alzheimer's disease pathogenesis, that was monitored by glycaemic status, lipid profile, amyloid beta 40 and 42 (Aβ40 and Aβ42), C-reactive protein, total creatine kinase, total lactate dehydrogenase, D-dimer and magnesium measurements, to assess the association between theses biochemical markers and each other, to estimate the possibility of utilizing the amyloid beta as biochemical marker of T2D in Alzheimer's patients, and to evaluate the effect of piracetam and memantine drugs on diabetes mellitus...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28532430/a-retrospective-cohort-study-on-the-risk-of-stroke-in-relation-to-a-priori-health-knowledge-level-among-people-with-type-2-diabetes-mellitus-in-taiwan
#8
Yun-Ju Lai, Hsiao-Yun Hu, Ya-Ling Lee, Po-Wen Ku, Yung-Feng Yen, Dachen Chu
BACKGROUND: Intervention of diabetes care education with regular laboratory check-up in outpatient visits showed long-term benefits to reduce the risk of macrovascular complications among people with type 2 diabetes. However, research on the level of a priori health knowledge to the prevention of diabetic complications in community settings has been scarce. We therefore aimed to investigate the association of health knowledge and stroke incidence in patients with type 2 diabetes in Taiwan...
May 22, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28532226/novel-biological-therapies-for-the-treatment-of-diabetic-foot-ulcers
#9
Jennifer Adeghate, Syed Nurulain, Kornélia Tekes, Erzsébet Fehér, Huba Kalász, Ernest Adeghate
The number of people with diabetes mellitus (DM) is estimated to exceed 640 million by the year 2040. Diabetic foot ulcer (DFU) is a debilitating illness that affects more than 2% of DM patients. DFU is caused by DM-induced neural and vascular lesions leading to a reduced sensation and microcirculation. The increase in the prevalence of DFU has prompted researchers to find new therapies for the management of DFU. Areas covered: This review presents the current status of novel biological therapies used in the treatment of DFU...
May 22, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28531804/protective-effect-and-mechanism-of-lycopene-on-endothelial-progenitor-cells-epcs-from-type-2-diabetes-mellitus-rats
#10
Yao-Chi Zeng, Li-Sheng Peng, Liyuan Zou, Shu-Fen Huang, Yi Xie, Gui-Ping Mu, Xue-Hui Zeng, Xi-Lin Zhou, Ya-Chi Zeng
Endothelial progenitor cells (EPCs), widely existing in bone marrow and peripheral blood, are involved in the repair of injured vascular endothelium and angiogenesis which are important to diabetic mellitus (DM) patients with vascular complications. The number and the function of EPCs are related to the advanced glycation end products (AGEs) generated in DM patients. Lycopene (Lyc) is an identified natural antioxidant that protects EPCs under the microenvironment of AGEs from damage. However, the underlying mechanism remains unclear...
May 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28528745/measurement-of-electrochemical-conductance-of-penile-skin-using-sudoscan-%C3%A2-a-new-tool-to-assess-neurogenic-impotence
#11
Jean-Pascal Lefaucheur
OBJECTIVES: To investigate the value of electrochemical skin conductance (ESC) measurement at penile level using Sudoscan(®) for the diagnosis of neurogenic impotence in diabetics. METHODS: The following neurophysiological parameters were assessed in 25 male diabetics who complained of impotence and 25 age-matched normal male subjects without erectile dysfunction (age range: 29-70 years): ESC, sympathetic skin responses (SSR), warm detection thresholds (WDT), and cold detection thresholds (CDT) for the penis and the feet, vibration detection thresholds (VDT) for the penis, and sensory nerve conduction study of the dorsal nerve of the penis (DNP) with sensory nerve action potential (SNAP) recording...
May 18, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28528401/cardiovascular-disease-biomarkers-are-associated-with-declining-renal-function-in-type-2-diabetes
#12
Sara J Jenks, Bryan R Conway, Stela McLachlan, Wei Leng Teoh, Rachel M Williamson, David J Webb, Paul Welsh, Naveed Sattar, Mark W J Strachan, Jackie F Price
AIMS/HYPOTHESIS: We investigated whether biochemical cardiovascular risk factors and/or markers of subclinical cardiovascular disease were associated with the development of reduced renal function in people with type 2 diabetes. METHODS: A cohort of 1066 Scottish men and women aged 60-74 years with type 2 diabetes from the Edinburgh Type 2 Diabetes Study were followed up for a median of 6.7 years. New-onset reduced renal function was defined as two eGFRs <60 ml(-1) min(-1) (1...
May 20, 2017: Diabetologia
https://www.readbyqxmd.com/read/28526024/protective-effect-on-the-coronary-microcirculation-of-patients-with-diabetes-by-clopidogrel-or-ticagrelor-predict-study-rationale-and-design-a-randomized-multicenter-clinical-trial-using-intracoronary-multimodal-physiology
#13
Enrico Cerrato, Alicia Quirós, Mauro Echavarría-Pinto, Hernan Mejia-Renteria, Andres Aldazabal, Nicola Ryan, Nieves Gonzalo, Pilar Jimenez-Quevedo, Luis Nombela-Franco, Pablo Salinas, Iván J Núñez-Gil, José Ramón Rumoroso, Antonio Fernández-Ortiz, Carlos Macaya, Javier Escaned
BACKGROUND: In diabetic patients a predisposed coronary microcirculation along with a higher risk of distal particulate embolization during primary percutaneous intervention (PCI) increases the risk of peri-procedural microcirculatory damage. However, new antiplatelet agents, in particular Ticagrelor, may protect the microcirculation through its adenosine-mediated vasodilatory effects. METHODS: PREDICT is an original, prospective, randomized, multicenter controlled study designed to investigate the protective effect of Ticagrelor on the microcirculation during PCI in patient with diabetes mellitus type 2 or pre-diabetic status...
May 19, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28525624/early-and-asymptomatic-cardiac-dysfunction-in-chronic-kidney-disease
#14
Shanmugakumar Chinnappa, Edward White, Nigel Lewis, Omer Baldo, Yu-Kang Tu, Griet Glorieux, Raymond Vanholder, Meguid El Nahas, Andrew Mooney
Background: . Heart failure (HF) is highly prevalent and associated with high mortality in chronic kidney disease (CKD). However, the pathophysiology of cardiac dysfunction in CKD, especially in the early asymptomatic stage, is not well understood. We studied subclinical cardiac dysfunction in asymptomatic CKD patients without comorbid cardiac disease or diabetes mellitus by evaluating peak cardiac performance. Methods.: In a cross-sectional study ( n  = 130) we investigated 70 male non-diabetic CKD patients (21 CKD stage 2-3a, 27 CKD stage 3b-4 and 22 CKD stage 5) employing specialized cardiopulmonary exercise testing to measure peak cardiac output and cardiac power output non-invasively...
May 19, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28525362/fgf21-receptor-agonists-an-emerging-therapeutic-class-for-obesity-related-diseases
#15
Junichiro Sonoda, Mark Z Chen, Amos Baruch
Fibroblast growth factor 21 (FGF21) analogs and FGF21 receptor agonists (FGF21RAs) that mimic FGF21 ligand activity constitute the new "FGF21-class" of anti-obesity and anti-diabetic molecules that improve insulin sensitivity, ameliorate hepatosteatosis and promote weight loss. The metabolic actions of FGF21-class proteins in obese mice are attributed to stimulation of brown fat thermogenesis and increased secretion of adiponectin. The therapeutic utility of this class of molecules is being actively investigated in clinical trials for the treatment of type 2 diabetes and non-alcoholic steatohepatitis (NASH)...
May 19, 2017: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/28518147/survivin-a-key-player-in-cancer-progression-increases-in-obesity-and-protects-adipose-tissue-stem-cells-from-apoptosis
#16
Miriam Ejarque, Victòria Ceperuelo-Mallafré, Carolina Serena, Gisela Pachón, Yaiza Núñez-Álvarez, Margarida Terrón-Puig, Enrique Calvo, Catalina Núñez-Roa, Wilfredo Oliva-Olivera, Francisco J Tinahones, Miguel Angel Peinado, Joan Vendrell, Sonia Fernández-Veledo
Adipose tissue (AT) has a central role in obesity-related metabolic imbalance through the dysregulated production of cytokines and adipokines. In addition to its known risk for cardiovascular disease and diabetes, obesity is also a major risk for cancer. We investigated the impact of obesity for the expression of survivin, an antiapoptotic protein upregulated by adipokines and a diagnostic biomarker of tumor onset and recurrence. In a cross-sectional study of 111 subjects classified by body mass index, circulating levels of survivin and gene expression in subcutaneous AT were significantly higher in obese patients and positively correlated with leptin...
May 18, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28515126/radiomanganese-pet-detects-changes-in-functional-%C3%AE-cell-mass-in-mouse-models-of-diabetes
#17
Reinier Hernandez, Stephen A Graves, Trillian Gregg, Halena R VanDeusen, Rachel J Fenske, Haley N Wienkes, Christopher G England, Hector F Valdovinos, Justin J Jeffery, Todd E Barnhart, Gregory W Severin, Robert J Nickles, Michelle E Kimple, Matthew J Merrins, Weibo Cai
The noninvasive measurement of functional β-cell mass would be clinically valuable for monitoring the progression of type 1 and type 2 diabetes, as well as the viability of transplanted insulin-producing cells. Although previous work employing magnetic resonance imaging has shown promise for functional β-cell mass determination through voltage-dependent Ca(2+) channel (VDCC)-mediated internalization of Mn(2+), the clinical utility of this technique is limited by the cytotoxic levels of Mn(2+) contrast agent...
May 17, 2017: Diabetes
https://www.readbyqxmd.com/read/28514891/synergistic-effect-of-rapamycin-and-metformin-against-age-dependent-oxidative-stress-in-rat-erythrocyte
#18
Abhishek Kumar Singh, Geetika Garg, Sandeep Singh, Syed Ibrahim Rizvi
Erythrocytes are particularly vulnerable towards age-dependent oxidative stress mediated damage. Caloric restriction mimetics (CRMs) may provide a novel strategy for the maintenance of redox balance as well as effective treatment of age associated diseases. Herein, we have investigated the beneficial effect of co-treatment of CRM-candidate drugs, rapamycin (an immunosuppressant drug and inhibitor of mammalian target of rapamycin) and metformin (an anti-diabetic biguanide and activator of adenosine monophosphate kinase) against aging-induced oxidative stress in erythrocytes and plasma of aging rats...
May 17, 2017: Rejuvenation Research
https://www.readbyqxmd.com/read/28514232/ppar%C3%AE-agonists-attenuate-trigeminal-neuropathic-pain
#19
Danielle N Lyons, Liping Zhang, Robert J Danaher, Craig S Miller, Karin N Westlund
The aim of this study is to investigate the role of peroxisome proliferator-activated receptor-gamma isoform (PPARγ), in trigeminal neuropathic pain utilizing a novel mouse trigeminal inflammatory compression (TIC) injury model. The study determined that the PPARγ nuclear receptor plays a significant role in trigeminal nociception transmission, evidenced by: (1) Intense PPARγ immunoreactivity is expressed 3 weeks after TIC nerve injury in the spinal trigeminal caudalis, the termination site of trigeminal nociceptive nerve fibers...
May 16, 2017: Clinical Journal of Pain
https://www.readbyqxmd.com/read/28511905/hemorheological-alterations-in-adults-with-prediabetes-identified-by-hemoglobin-a1c-levels
#20
M A Marini, T V Fiorentino, F Andreozzi, G C Mannino, E Succurro, A Sciacqua, F Perticone, G Sesti
BACKGROUND AND AIMS: A link between increased blood viscosity and type 2 diabetes has been previously reported. Herein, we investigated the association of blood viscosity with prediabetes, identified by glycated hemoglobin A1c (HbA1c) according to the new American Diabetes Association criteria, and subclinical atherosclerosis. METHODS AND RESULTS: The study cohort includes 1136 non-diabetic adults submitted to anthropometrical evaluation, an oral glucose tolerance test and ultrasound measurement of carotid intima-media thickness (IMT)...
April 21, 2017: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
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