Abstract:
BACKGROUND:Increased production of reactive oxygen species (ROS) in mitochondria has been proposed as the pathogenic mechanism for chronic complications of diabetes. Mitochondrial DNA (mtDNA) is more vulnerable to reactive oxygen species. However, there are few data on the mitochondrial DNA damage in diabetes and these are available only from patients with different duration of the disease and tissues not relevant to the chronic complications of diabetes. We therefore proposed to study the stability of mitochondrial DNA under controlled experimental conditions, to understand its contribution to chronic complications of diabetes. METHODS:The mitochondrial DNA damage was evaluated by long-fragment polymerase chain reaction in human dermal fibroblasts exposed to high glucose level and hypoxia (an additional source of reactive oxygen species) or in organs from diabetic animals (db/db mice) at different ages. Reactive oxygen species production was assessed in vitro by fluorescence and in vivo by nitrosylation of the proteins. The antioxidant enzymes were assessed by enzyme activity and by quantitative real-time polymerase chain reaction while the mitochondrial repair activity (base excision repair) was determined by using abasic site-containing oligonucleotides as substrates. RESULTS:Hyperglycaemia, when combined with hypoxia, is able to induce mitochondrial DNA damage in human dermal fibroblasts. The deleterious effect is mediated by mitochondrial reactive oxygen species, being abolished when the mitochondria electron transport is blocked. The accumulation of mitochondrial DNA damage in vivo is, however, decreased in 'old' diabetic animals (db/db) despite higher reactive oxygen species levels. This mitochondrial DNA protection might be conferred by an increased base excision repair activity. CONCLUSION:Increased base excision repair activity in tissues affected by the chronic complications of diabetes is a potential mechanism that can overcome mitochondrial DNA damage induced by hyperglycaemia-related reactive oxygen species overproduction.
journal_name
Diabetes Metab Res Revjournal_title
Diabetes/metabolism research and reviewsauthors
Savu O,Sunkari VG,Botusan IR,Grünler J,Nikoshkov A,Catrina SBdoi
10.1002/dmrr.1203subject
Has Abstractpub_date
2011-07-01 00:00:00pages
470-9issue
5eissn
1520-7552issn
1520-7560journal_volume
27pub_type
杂志文章abstract:BACKGROUND:Heparanase is an endo-beta-D-glucuronidase that cleaves heparan sulfate saccharide chains. The enzyme promotes cell adhesion, migration and invasion, and was shown to play a significant role in cancer metastasis and angiogenesis. METHODS:The present study focuses on the involvement of heparanase in autoimmu...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.868
更新日期:2008-07-01 00:00:00
abstract:BACKGROUND:The aim of the study is to assess the relationship between the shape of plasma glucose concentration during the OGTT and future risk for T2DM. METHODS:2445 non-diabetic subjects from the Botnia study received an OGTT at baseline and after 7-8 years of follow-up. RESULTS:NGT and IFG subjects who returned th...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.1084
更新日期:2010-05-01 00:00:00
abstract:BACKGROUND:Our previous studies showed that some Korean type 2 diabetic patients could maintain long-term normal blood glucose control without any medication, referred to as remission after a certain period of normalization of blood glucose level by continuous subcutaneous insulin infusion (CSII) treatment. In this stu...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.343
更新日期:2003-03-01 00:00:00
abstract:BACKGROUND:The goal of the present study was to determine whether cytokines in the peripheral blood of naive NOD mice correlate with the disease process and thereby would provide a marker for monitoring disease activity. METHODS:Female NOD mice (5, 10 and 14-16 weeks of age) were investigated in a cross-sectional stud...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.256
更新日期:2002-01-01 00:00:00
abstract::Patients with type 2 diabetes mellitus using sulfonylurea derivatives or insulin may experience hypoglycaemia. However, recent data regarding the incidence of hypoglycaemia are scarce. We conducted a systematic review and meta-analysis to determine the proportion of patients with type 2 diabetes mellitus that experien...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章,meta分析,评审
doi:10.1002/dmrr.2470
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Diabetes mellitus secondary to pancreatic diseases is a condition seldom thought of in clinical practice. Yet, a high percentage of exocrine pancreatic insufficiency has been reported for the general population and especially for diabetic subjects. Thus, we investigated the prevalence of diabetes mellitus du...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.2260
更新日期:2012-05-01 00:00:00
abstract:BACKGROUND:There is a controversy about self-monitoring of blood glucose (SMBG) in patients with type 2 diabetes who are not using insulin. Randomized trials are limited in duration, size, and validity. METHODS:Systematic search for randomized trials and observational studies published since 1990. For inclusion studie...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章,评审
doi:10.1002/dmrr.749
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND:HLA region is the major locus (IDDM1) of type 1 diabetes (T1D) susceptibility. It explains approximately 50% of the genetic background of T1D, indicating additional genetic determinants. Genome scans and candidate gene studies have generated several chromosomal candidate regions that may have a role in T1D d...
journal_title:Diabetes/metabolism research and reviews
pub_type: 临床试验,杂志文章
doi:10.1002/dmrr.424
更新日期:2004-03-01 00:00:00
abstract:BACKGROUND:For cost-effective population-based diabetes prediction and confirmation, islet autoantibody assays must be made more economical. METHODS:We evaluated glutamic acid decarboxylase (GAD)-Ruc (renilla luciferase) and IA2ic (also known as ICA512ic)-Ruc (renilla luciferase) fusion protein constructs in high-thro...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.1268
更新日期:2011-11-01 00:00:00
abstract:BACKGROUND:Securing an early accurate diagnosis of diabetic foot infections and assessment of their severity are of paramount importance since these infections can cause great morbidity and potentially mortality and present formidable challenges in surgical and antimicrobial treatment. METHODS:In June 2018, we searche...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.3281
更新日期:2020-03-01 00:00:00
abstract:BACKGROUND:Physical functioning may be an important pre-clinical marker of chronic disease, used as a tool to identify patients at risk for future cardiometabolic abnormalities. This study evaluated if self-reported physical functioning was associated with the development of cardiometabolic abnormalities or their clust...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章,多中心研究
doi:10.1002/dmrr.2765
更新日期:2016-05-01 00:00:00
abstract:OBJECTIVE:Psammomys obesus gerbil exhibits PKCepsilon over-expression on high-energy (HE) diet. Muscle insulin receptor (IR) signalling and tyrosine kinase activity are inhibited eliciting insulin resistance. We aimed at preventing diabetes by inhibiting PKCepsilon-induced serine phosphorylation of IRS-1 with novel PKC...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.881
更新日期:2008-10-01 00:00:00
abstract::Islet cell antibodies (ICA) are a specific marker for Type 1 (insulin-dependent) diabetes mellitus. ICA are found in the serum of over 80% of newly diagnosed patients and the levels of ICA are directly of prognostic value. Standardisation of ICA and the uniform reporting of ICA levels in international units is critica...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/(sici)1520-7560(199901/02)15:1<72::aid-dmr
更新日期:1999-01-01 00:00:00
abstract:BACKGROUND:Cyclosporin A (CyA) may induce acute nephrotoxicity. The question has been raised of the possible long-term unfavorable course of CyA-induced lesions. Advantage was taken of a large cohort of diabetic patients treated for several months using moderate CyA dosage to evaluate the long-term evolution of renal f...
journal_title:Diabetes/metabolism research and reviews
pub_type: 临床试验,杂志文章
doi:10.1002/dmrr.325
更新日期:2002-11-01 00:00:00
abstract:BACKGROUND:We evaluated whether global levels of DNA methylation status were associated with retinopathy as well as providing a predictive role of DNA methylation in developing retinopathy in a case-control study of 168 patients with type 2 diabetes. METHODS:The 5-methylcytosine content was assessed by reversed-phase ...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.2584
更新日期:2015-02-01 00:00:00
abstract::Prevention of diabetic foot ulcers is important to reduce the burden of diabetic foot disease. However, we found that ulcer prevention is underexposed in research and clinical practice. Barriers to explain this are seen in patient's goal-setting; in the lack of interdisciplinary teams for ulcer prevention; in sample s...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.3234
更新日期:2020-03-01 00:00:00
abstract:BACKGROUND:Mutating the insulin B:9-23 peptide prevents diabetes in NOD mice. Thus, the trimolecular complex of I-Ag7-insulin B:9-23 peptide-TCR may be essential for the development of spontaneous diabetes. Pathogenic T cells recognize the B:9-23 peptide presented by I-Ag7 in what is termed register 3, with the B22 bas...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.1252
更新日期:2011-11-01 00:00:00
abstract::The role of peripheral arterial disease in ulcerated diabetic feet has long been underestimated. Progressive claudication, rest pain and the extent of irreversible tissue loss have frequently been indications for revascularization for neuroischaemic ulcers in diabetic patients. These typical ischaemic symptoms are war...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章,评审
doi:10.1002/dmrr.2259
更新日期:2012-02-01 00:00:00
abstract::The International Working Group on the Diabetic Foot (IWGDF) has published evidence-based guidelines on the prevention and management of diabetic foot disease since 1999. In conjunction with advice from internal and external reviewers and expert consultants in the field, this update is based on a systematic review of ...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章,评审
doi:10.1002/dmrr.3283
更新日期:2020-03-01 00:00:00
abstract::Diabetes foot infections are a common condition and a major causal pathway to lower extremity amputation. Identification of causative pathogens is vital in directing antimicrobial therapy. Historically, clinicians have relied upon culture-dependent techniques that are now acknowledged as both being selective for micro...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章,评审
doi:10.1002/dmrr.2834
更新日期:2017-01-01 00:00:00
abstract::This perspective covers a novel area of research describing the inadequacies of current approaches for diagnosing dysglycaemia and proposes that the 1-hour post-load glucose level during the 75-g oral glucose tolerance test may serve as a novel biomarker to detect dysglycaemia earlier than currently recommended screen...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.2992
更新日期:2018-07-01 00:00:00
abstract::In addition to reducing hyperglycaemia, the metabolic actions of TZDs (pioglitazone and rosiglitazone) in theory might improve the prognosis of patients with type 2 diabetes. However, it appears from recent data that pioglitazone and rosiglitazone have different cardiovascular risk profiles. The scope of this paper is...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章,评审
doi:10.1002/dmrr.937
更新日期:2009-02-01 00:00:00
abstract:BACKGROUND:Leptin's hematopoietic or proinflammatory role has been experimentally reported. We investigated whether serum leptin concentrations are associated with white blood cell (WBC) counts in humans. METHODS:Serum leptin concentrations of Japanese civil servants aged 40 to 59 years (1082 men and 200 women) were a...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.540
更新日期:2005-09-01 00:00:00
abstract:BACKGROUND:We have investigated the possible role of ACP1 (also known as cLMWPTP: cytosolic low molecular weight phosphotyrosine phosphatase), a highly polymorphic enzyme involved in signal transduction of T-cell receptor, insulin receptor and other growth factors in the relationship between maternal age at delivery an...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.521
更新日期:2005-07-01 00:00:00
abstract:BACKGROUND:Treatment with DiaPep277, a peptide derived from HSP60, has been shown to preserve beta-cell function in non-obese diabetic mouse (NOD) mice and in a trial with newly diagnosed human patients with type 1 diabetes treated over a 10-month period. This article extends the clinical trial observations to a total ...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章,随机对照试验
doi:10.1002/dmrr.712
更新日期:2007-05-01 00:00:00
abstract:BACKGROUND:To ascertain which demographic, clinical, and microbiological factors might affect clinical outcomes of patients with diabetic foot infections, excluding known osteomyelitis, by analysing Clinical Assessment Program and Teflaro® Utilization Registry study data of patients treated with ceftaroline fosamil. M...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章,多中心研究
doi:10.1002/dmrr.2624
更新日期:2015-05-01 00:00:00
abstract:BACKGROUND:Patients with impaired 50-g oral glucose challenge test (OGCT) have not been investigated for fetal anterior abdominal wall thickness until now. We aimed to investigate patients with impaired 50-g OGCT, but not gestational diabetes and match them with healthy uneventful pregnant participants for anterior abd...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.2511
更新日期:2014-10-01 00:00:00
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journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.3094
更新日期:2019-02-01 00:00:00
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journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/1520-7560(2000)9999:9999<::aid-dmrr148>3.0
更新日期:2000-09-01 00:00:00
abstract:AIMS:Type 2 diabetes (T2D) is a global health problem that will be diagnosed in almost 300 million people by 2025 according to the World Health Organization. Before being diagnosed with T2D, individuals may have glucose levels above normal but below the diabetic range. This condition is known as prediabetes. Studies sh...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.3405
更新日期:2020-09-10 00:00:00