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Journal of Diabetes Research

Anastasia Katsarou, Rickard Claesson, Claes Ignell, Nael Shaat, Kerstin Berntorp
Aim. The aim of this study was to examine seasonal patterns in glucose tolerance and in the diagnosis of gestational diabetes mellitus (GDM). Methods. Altogether, 11 538 women underwent a 75-g oral glucose tolerance test (OGTT) in the twenty-eighth week of pregnancy during the years 2003-2005 in southern Sweden. GDM was defined by the 2-h capillary glucose concentration in the OGTT (≥8.9 mmol/L). Chi-squared test, analysis of variance, and regression analyses were used for statistical evaluations. Results...
2016: Journal of Diabetes Research
Ju-Sheng Zheng, Kaijun Niu, Simone Jacobs, Hassan Dashti, Tao Huang
No abstract text is available yet for this article.
2016: Journal of Diabetes Research
Agnieszka Kamińska, Mark Platt, Joanna Kasprzyk, Beata Kuśnierz-Cabala, Agnieszka Gala-Błądzińska, Olga Woźnicka, Benedykt R Jany, Franciszek Krok, Wojciech Piekoszewski, Marek Kuźniewski, Ewa Ł Stępień
The aim of this study was to check the relationship between the density of urinary EVs, their size distribution, and the progress of early renal damage in type 2 diabetic patients (DMt2). Patients were enrolled to this study, and glycated hemoglobin (HbA1c) below 7% was a threshold for properly controlled diabetic patients (CD) and poorly controlled diabetic patients (UD). Patients were further divided into two groups: diabetic patients without renal failure (NRF) and with renal failure (RF) according to the Glomerular Filtration Rate...
2016: Journal of Diabetes Research
Satoshi Okano
Cryptochrome proteins (CRYs), which can bind noncovalently to cofactor (chromophore) flavin adenine dinucleotide (FAD), occur widely among organisms. CRYs play indispensable roles in the generation of circadian rhythm in mammals. Transgenic mice (Tg mice), ubiquitously expressing mouse CRY1 having a mutation in which cysteine414 (the zinc-binding site of CRY1) being replaced with alanine, display unique phenotypes in their circadian rhythms. Moreover, male Tg mice exhibit symptoms of diabetes characterized by beta-cell dysfunction, resembling human maturity onset diabetes of the young (MODY)...
2016: Journal of Diabetes Research
Céline Hivelin, Sophie Béraud-Dufour, Christelle Devader, Amar Abderrahmani, Sébastien Moreno, Hamid Moha Ou Maati, Alaeddine Djillani, Catherine Heurteaux, Marc Borsotto, Jean Mazella, Thierry Coppola
Inhibition of the potassium channels TREK-1 by spadin (SPA) is currently thought to be a promising therapeutic target for the treatment of depression. Since these channels are expressed in pancreatic β-cells, we investigated their role in the control of insulin secretion and glucose homeostasis. In this study, we confirmed the expression of TREK-1 channels in the insulin secreting MIN6-B1 β-cell line and in mouse islets. We found that their blockade by SPA potentiated insulin secretion induced by potassium chloride dependent membrane depolarization...
2016: Journal of Diabetes Research
Yanan Wang, Jixin Zhong, Xiangzhi Zhang, Ziwei Liu, Yuan Yang, Quan Gong, Boxu Ren
Significance. With an alarming increase in recent years, diabetes mellitus has become a global challenge. Despite advances in treatment of diabetes mellitus, currently, medications available are unable to control the progression of diabetes and its complications. Growing evidence suggests that inflammation is an important pathogenic mediator in the development of diabetes mellitus. The perspectives including suggestions for new therapies involving the shift from metabolic stress to inflammation should be taken into account...
2016: Journal of Diabetes Research
Valentina K Bayrasheva, Alina Yu Babenko, Vladimir A Dobronravov, Yuri V Dmitriev, Svetlana G Chefu, Ivan Yu Pchelin, Alexandra N Ivanova, Alekber A Bairamov, Nina P Alexeyeva, Ivan S Shatalov, Elena N Grineva
Type 2 diabetes (DM2) could be reproduced in rats with alimentary obesity by using low doses of streptozotocin (LD-STZ) as well as STZ in high doses with preliminary nicotinamide (NA) administration. However, STZ could induce tubulotoxicity. Aim. To develop rat model of DN in NA-STZ-induced DM2 and compare it with LD-STZ-model in order to choose the most relevant approach for reproducing renal glomerular and tubular morphofunctional diabetic changes. Starting at 3 weeks after uninephrectomy, adult male Wistar rats were fed five-week high-fat diet and then received intraperitoneally either LD-STZ (40 mg/kg) or NA (230 mg/kg) followed by STZ (65 mg/kg)...
2016: Journal of Diabetes Research
Włodzimierz Łuczyński, Barbara Głowińska-Olszewska, Artur Bossowski
As the available therapies for diabetes and obesity are not effective enough, diabetologists and educators search for new methods to collaborate with patients in order to support their health behaviors. The aim of this review is to discuss perspectives for the development of new empowerment-type therapies in the treatment of diabetes/obesity. Empowerment is a process whereby patients gain the necessary knowledge to influence their own behavior to improve the quality of their lives. It is carried out in five stages: (1) identify the problem, (2) explain the feelings and meanings, (3) build a plan, (4) act, and (5) experience and assess the execution...
2016: Journal of Diabetes Research
Akiko Takenouchi, Ayaka Tsuboi, Miki Kurata, Keisuke Fukuo, Tsutomu Kazumi
Background/Aims. Subclinical atherosclerosis and long-term glycemic variability have been reported to predict incident chronic kidney disease (CKD) in the general population. However, these associations have not been investigated in patients with type 2 diabetes with preserved kidney function. Methods. We prospectively followed up 162 patients with type 2 diabetes (mean age, 62.3 years; 53.6% men) and assessed whether carotid intima-media thickness (IMT) measured by B-mode ultrasound and visit-to-visit HbA1c variability are associated with deterioration of CKD (incident CKD defined as estimated GFR [eGFR] < 60 mL/min/1...
2016: Journal of Diabetes Research
Satu Vavuli, Tuire Salonurmi, Sirpa Loukovaara, Antti E Nissinen, Markku J Savolainen, M Johanna Liinamaa
Aims. This study investigated the association of autoantibodies binding to oxidized low-density lipoproteins (oxLDL) in diabetic retinopathy (DR). Methods. Plasma from 229 types 1 and 2 patients with DR including diabetic macular edema (DME) and proliferative diabetic retinopathy (PDR) was analysed with ELISA-based assay to determine IgA, IgG, and IgM autoantibody levels binding to oxLDL. The controls were 106 diabetic patients without retinopathy (NoDR) and 139 nondiabetic controls (C). Results. PDR group had significantly higher IgA autoantibody levels than DME or NoDR: mean 94...
2016: Journal of Diabetes Research
Mohammed Badedi, Yahiya Solan, Hussain Darraj, Abdullah Sabai, Mohamed Mahfouz, Saleh Alamodi, Abdullah Alsabaani
Aims. This study assessed factors associated with glycemic control among Saudi patients with Type 2 diabetes mellitus (T2DM). Methods. We conducted an analytical cross-sectional study, which included a random sample of 288 patients with T2DM proportional to the diabetes population of each primary health care center in Jazan city, Kingdom of Saudi Arabia. Results. More than two-thirds (74%) of patients had poor glycemic control. Lack of education, polypharmacy, and duration of diabetes ≥ 7 years were significantly associated with higher glycated hemoglobin (HbA1c)...
2016: Journal of Diabetes Research
Dóra J Eszes, Dóra J Szabó, Greg Russell, Phil Kirby, Edit Paulik, László Nagymajtényi, Andrea Facskó, Morten C Moe, Beáta É Petrovski
Introduction. Diabetic retinopathy (DR) is a sight-threatening complication of diabetes. Telemedicine tools can prevent blindness. We aimed to investigate the patients' satisfaction when using such tools (fundus camera examination) and the effect of demographic and socioeconomic factors on participation in screening. Methods. Pilot study involving fundus camera screening and self-administered questionnaire on participants' experience during fundus examination (comfort, reliability, and future interest in participation), as well as demographic and socioeconomic factors was performed on 89 patients with known diabetes in Csongrád County, a southeastern region of Hungary...
2016: Journal of Diabetes Research
Zhi-Xue Xu, Qiang Zhang, Gong-Li Ma, Cong-Heng Chen, Yan-Ming He, Li-Hui Xu, Yuan Zhang, Guang-Rong Zhou, Zhen-Hua Li, Hong-Jie Yang, Ping Zhou
The abnormal fibrillation of human islet amyloid polypeptide (hIAPP) has been implicated in the development of type II diabetes. Aluminum is known to trigger the structural transformation of many amyloid proteins and induce the formation of toxic aggregate species. The (-)-epigallocatechin gallate (EGCG) is considered capable of binding both metal ions and amyloid proteins with inhibitory effect on the fibrillation of amyloid proteins. However, the effect of Al(III)/EGCG complex on hIAPP fibrillation is unclear...
2016: Journal of Diabetes Research
Mariko Asada, Tomoaki Morioka, Yuko Yamazaki, Yoshinori Kakutani, Reina Kawarabayashi, Koka Motoyama, Katsuhito Mori, Shinya Fukumoto, Atsushi Shioi, Tetsuo Shoji, Masanori Emoto, Masaaki Inaba
Aim. C1q/tumor necrosis factor-related protein-9 (CTRP9), a paralog of adiponectin, is expressed in adipose tissue. CTRP9 exerts protective effects against obesity and atherosclerosis in rodents. We investigated the association between plasma CTRP9 levels and atherosclerosis in patients with type 2 diabetes. Methods. We included 419 patients with type 2 diabetes, 161 of whom had chronic kidney disease (CKD). Fasting plasma CTRP9 and total adiponectin levels were measured with enzyme-linked immunosorbent assay...
2016: Journal of Diabetes Research
Seyit Uyar, Ayşe Balkarlı, Muhammet Kazım Erol, Bayram Yeşil, Abdullah Tokuç, Doğan Durmaz, Süheyla Görar, Ayhan Hilmi Çekin
Background and Objectives. Nailfold capillaroscopy is an easy and noninvasive technique used to investigate dermal microvasculature. Traditional investigations of vascularity do not detect changes until they are well-established in type 2 diabetics. The objective of the current study was to evaluate nailfold capillaries in type 2 diabetes mellitus patients and to determine the association of retinopathy with changes in the nailfold capillaries. Materials and Methods. Capillaroscopic findings by nailfold capillaroscopy and fundoscopic examinations were assessed in 216 patients with type 2 diabetes mellitus and 101 healthy controls included in this prospective study...
2016: Journal of Diabetes Research
Luis Miguel Román-Pintos, Geannyne Villegas-Rivera, Adolfo Daniel Rodríguez-Carrizalez, Alejandra Guillermina Miranda-Díaz, Ernesto Germán Cardona-Muñoz
Diabetic polyneuropathy (DPN) is defined as peripheral nerve dysfunction. There are three main alterations involved in the pathologic changes of DPN: inflammation, oxidative stress, and mitochondrial dysfunction. Inflammation induces activation of nuclear factor kappa B, activator protein 1, and mitogen-activated protein kinases. Oxidative stress induced by hyperglycemia is mediated by several identified pathways: polyol, hexosamine, protein kinase C, advanced glycosylation end-products, and glycolysis. In addition, mitochondrial dysfunction accounts for most of the production of reactive oxygen and nitrosative species...
2016: Journal of Diabetes Research
Angela Sheu, Barbara Depczynski, Anthony J O'Sullivan, Grant Luxton, George Mangos
Background. Optimal glycaemic targets following transplantation are unknown. Understanding the impact of DM and posttransplant diabetes mellitus (PTDM) may improve patient and graft survival in transplant recipients. Aim. To determine the perioperative and one-year outcomes after renal transplantation and whether these outcomes are affected by preexisting DM, PTDM, or glycaemia during transplant admission. Method. Adult recipients of renal transplants from a single centre over 5.5 years were retrospectively reviewed...
2016: Journal of Diabetes Research
Jerzy Kotlinowski, Alicja Jozkowicz
We summarize the current knowledge concerning PPARγ function in angiogenesis. We discuss the mechanisms of action for PPARγ and its role in vasculature development and homeostasis, focusing on endothelial cells, endothelial progenitor cells, and bone marrow-derived proangiogenic cells.
2016: Journal of Diabetes Research
Byung Kil Park, Eun-Ah Lee, Hee-Youn Kim, Jun Choul Lee, Koon Soon Kim, Won Hoon Jeong, Ki Young Kim, Bon Jeong Ku, Sang Dal Rhee
Mitogen inducible gene-6 (Mig-6) is a feedback inhibitor of epidermal growth factor receptor (EGFR) signaling pathway. The liver-specific knockout mice of the Mig-6 gene (Mig-6 (d/d) ) showed hepatomegaly and increased hypercholesterolemia. In this study, the biomarkers of insulin resistance and the effects of high-fat diets in the wild (Mig-6 (f/f) ) and Mig-6 (d/d) mice were analyzed. The fasting plasma concentrations of glucose, triglyceride, cholesterols, free fatty acids, and HOMA-IR were measured and the glucose tolerance and insulin resistance tests were performed in the 25-week-old Mig-6 (f/f) and the Mig-6 (d/d) mice...
2016: Journal of Diabetes Research
Omolola R Oyenihi, Ayodeji B Oyenihi, Anne A Adeyanju, Oluwafemi O Oguntibeju
Despite recent advances in the understanding and management of diabetes mellitus, the prevalence of the disease is increasing unabatedly with resulting disabling and life-reducing consequences to the global human population. The limitations and side effects associated with current antidiabetic therapies have necessitated the search for novel therapeutic agents. Due to the multipathogenicity of diabetes mellitus, plant-derived compounds with proven multiple pharmacological actions have been postulated to "hold the key" in the search for an affordable, efficacious, and safer therapeutic agent in the treatment of the disease and associated complications...
2016: Journal of Diabetes Research
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