Abstract:
AIMS/HYPOTHESIS:The adipocyte derived peptide hormone leptin is known to regulate apoptosis and cell viability in several cells and tissues, as well as having several pancreatic islet beta-cell specific effects such as inhibition of glucose-stimulated insulin secretion. This study investigated the effects of leptin upon apoptosis induced by serum depletion and on expression of the apoptotic regulators B-cell leukaemia 2 gene product (BCL-2) and BCL2-associated X protein (Bax) in the glucose-responsive BRIN-BD11 beta-cell line. METHODS:BRIN-BD11 cells were cultured in RPMI 1640 and subsequently serum depleted +/- leptin (10 and 50 ng/mL) for 24 h. Cell viability and apoptosis were measured using a modified MTS assay and TUNEL/YO-PRO-1 assays, respectively. BCL-2 and Bax expression were measured by real-time PCR and Western blotting. RESULTS:Leptin caused a reduction in serum-depleted apoptosis, although it failed to have any effect on the overall cell viability, causing a 68% shift from apoptosis to necrosis. Leptin significantly increased the level of BCL-2 mRNA expression (150% compared to serum depletion alone), without altering Bax mRNA expression. At the protein level, leptin increased BCL-2 and decreased Bax, altering the BCL-2 : Bax ratio. CONCLUSIONS:We conclude that leptin reduces apoptosis in beta-cells at physiological concentrations, possibly via its ability to up-regulate BCL-2 and Bax expression.
journal_name
Diabetes Metab Res Revjournal_title
Diabetes/metabolism research and reviewsauthors
Brown JE,Dunmore SJdoi
10.1002/dmrr.726subject
Has Abstractpub_date
2007-09-01 00:00:00pages
497-502issue
6eissn
1520-7552issn
1520-7560journal_volume
23pub_type
杂志文章abstract:BACKGROUND:This study aimed to investigate whether oestradiol differs between premenopausal women with and without type 1 diabetes and whether levels are associated with such factors as age, reproductive history or diabetes management. METHODS:Oestradiol in premenopausal women with type 1 diabetes (n = 89; age = 18-50...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.2829
更新日期:2017-02-01 00:00:00
abstract::In several large recent observational studies, peripheral arterial disease (PAD) was present in up to 50% of the patients with a diabetic foot ulcer and was an independent risk factor for amputation. The International Working Group on the Diabetic Foot therefore established a multidisciplinary working group to evaluat...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章,评审
doi:10.1002/dmrr.2249
更新日期:2012-02-01 00:00:00
abstract:BACKGROUND:Proatherogenic stimuli during foetal life may predispose to development of atherosclerosis in adulthood. Elevated plasma low-density lipoprotein (LDL) cholesterol and C-reactive protein (CRP) expression is associated with increased risk of atherosclerosis. METHODS AND RESULTS:In this study, we examined how ...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.867
更新日期:2008-09-01 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:The cardiovascular effects of sulfonylureas (SU) in diabetic patients are controversial and it has been suggested that diabetic patients with acute myocardial infarction while on SU were at increased risk. OBJECTIVES:To assess the in-hospital outcome of patients with acute myocardial infarction according to...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章,多中心研究
doi:10.1002/dmrr.498
更新日期:2005-03-01 00:00:00
abstract:BACKGROUND:The incidence of type 1 diabetes mellitus (T1DM) has increased in recent decades, as has the incidence of preterm births (<37 weeks). We aimed to evaluate and compare the prevalence of prematurity and early prematurity (<34 weeks) and birth season variability among T1DM and non-T1DM children. METHODS:A nati...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.2996
更新日期:2018-07-01 00:00:00
abstract::In the last few years, there has been increasing focus on the impact of interventions on cardiovascular outcomes in patients with type 2 diabetes. Insulin resistance and hyperglycaemia often co-exist with a cluster of risk factors for coronary artery disease, but the underlying mechanisms leading to the development of...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章,评审
doi:10.1002/dmrr.790
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:The ABO blood types are associated with cancers, cardiovascular diseases and type 2 diabetes mellitus but whether they are also associated with gestational diabetes mellitus (GDM) is unknown. We examined the relationship between the ABO blood types and the risk of GDM in a prospective population-based Chines...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.2650
更新日期:2015-09-01 00:00:00
abstract::Cardiovascular disease now is the leading cause of mortality among patients with type 1 diabetes (T1D). The risk of death from cardiovascular events in subjects with T1D is 2-10 times higher than the general population, depending on blood glucose control. Although complications of cardiovascular disease occur in middl...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章,评审
doi:10.1002/dmrr.3423
更新日期:2020-11-30 00:00:00
abstract::Since the publication of the United Kingdom Prospective Diabetes Study (UKPDS), the progressive nature of type 2 (DM2) diabetes has been identified as the main cause of failure to maintain a long term glycemic control.[1] The need to adjust treatment as the disease progressed was recognized and algorithms for treatmen...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.2381
更新日期:2012-12-05 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:Type 1 diabetes mellitus (DM) has been shown to alter the properties of bone and impair fracture healing in both humans and animals. The objective of this study was to examine changes in the histomorphometrical, histological and mechanical parameters of bone and remodeling during fracture healing, depending ...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.537
更新日期:2005-05-01 00:00:00
abstract:BACKGROUND:To evaluate the economic aspects of diabetic foot care in a multidisciplinary setting. METHOD:A review of the English language literature, published from 1966 to November 2005. RESULTS:The results of available studies on the cost-of-illness of diabetic foot problems are difficult to compare. Nevertheless t...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章,评审
doi:10.1002/dmrr.706
更新日期:2007-07-01 00:00:00
abstract:BACKGROUND:Previous works indicated that the stress on the endoplasmic reticulum (ER) affected nonalcoholic fatty liver disease (NAFLD). However, there is no clear evident on the effect of the regulation of ER stress by angiotensin-converting enzyme 2 (ACE2) on the prevention of NAFLD. METHODS:HepG2 cells were treated...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.3123
更新日期:2019-05-01 00:00:00
abstract::The increasing global prevalence of type 2 diabetes mellitus (T2DM) requires the implementation of preventive strategies to halt this trend, tailored to the specific needs of individual regions. Risk factors for T2DM are among the main targets for improving health outcomes and curbing the development of diabetes; exce...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章,评审
doi:10.1002/dmrr.2513
更新日期:2014-03-01 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::The immediate consequences of gestational diabetes on pregnancy are well known but the complications decades later for the mother and child are just now emerging. This trio of papers discuss the long-term consequences of gestational diabetes, the importance of screening this high risk group of women for type 2 diabete...
journal_title:Diabetes/metabolism research and reviews
pub_type: 社论
doi:10.1002/dmrr.2280
更新日期:2012-05-01 00:00:00
abstract:BACKGROUND:Vitamin D insufficiency and type 2 diabetes are both common in Finland, and low vitamin D status has been suggested as a risk factor for type 2 diabetes. Our aim was to study the associations between serum 25-hydroxyvitamin D [25(OH)D], a marker of vitamin D status, and glucose homeostasis and type 2 diabete...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.2286
更新日期:2012-07-01 00:00:00
abstract:BACKGROUND:Clinical studies have shown that proinsulin C-peptide exerts renoprotective effects in type 1 diabetes, although the underlying mechanisms are poorly understood. As C-peptide has been shown to induce several intracellular events and to localize to nuclei, we aimed to determine whether gene transcription is a...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.1220
更新日期:2011-10-01 00:00:00
abstract::Studies on skeletal involvement in patients with diabetes mellitus have generated conflicting results, largely because of the pathogenetic complexity of the condition. Several mechanisms may contribute to skeletal damage, including the increased urinary excretion coupled with the lower intestinal absorption of calcium...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章,评审
doi:10.1002/dmrr.449
更新日期:2004-05-01 00:00:00
abstract:BACKGROUND:This article aims to describe the implementation and initial results of an audit-feedback quality improvement initiative in Belgian diabetic foot clinics. METHODS:Using self-developed software and questionnaires, diabetic foot clinics collected data in 2005, 2008 and 2011, covering characteristics, history ...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.2524
更新日期:2014-07-01 00:00:00
abstract:OBJECTIVE:To examine the prognostic implications of diabetes mellitus (DM) and the importance of glycemic control during hospitalization for infectious diseases. METHODS:Historical prospectively collected data of patients hospitalized between 2011 and 2013. Infection-related hospitalizations were classified according ...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.3027
更新日期:2018-10-01 00:00:00
abstract::Various different systems have been proposed to classify diabetic foot ulcers, but none has gained widespread acceptance. The International Working Group of the Diabetic Foot (IWGDF) developed a classification system for research purposes, which is described in this report. In this PEDIS system, all foot ulcers should...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章,评审
doi:10.1002/dmrr.464
更新日期:2004-05-01 00:00:00
abstract:BACKGROUND:A longitudinal study assessed serum paraoxonase 1 (PON1) activity and concentration as affected by age and as associated with the development of type 2 diabetes (T2D). PON1's recently established physiological function is the hydrolysis of lipolactones in oxidized LDL particles. METHODS:Serum samples and cl...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.2967
更新日期:2018-03-01 00:00:00
abstract::Activation of self-reactive T cells that specifically destroy the pancreatic beta-cells is one of the hallmarks in the development of type 1 diabetes. Thus, for prevention and treatment of this autoimmune disease, approaches to induce and maintain T cell tolerance toward the beta-cells, especially in islet transplanta...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章,评审
doi:10.1002/dmrr.345
更新日期:2003-05-01 00:00:00
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...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.1203
更新日期:2011-07-01 00:00:00
abstract:BACKGROUND:Body mass index (BMI) is associated with death in a V-shaped manner in general populations but it is unknown whether BMI or other risk factors also exhibit V-shaped relationships with death in type 2 diabetic patients. METHODS:A prospective cohort of 7534 Chinese, type 2 diabetic patients enrolled since 199...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.792
更新日期:2008-03-01 00:00:00
abstract::Four kinds of subcutaneous continuous glucose monitoring (CGM) machines have been currently introduced in clinical practice. These machines exhibit real-time glucose on the monitor every 5 minutes and have alarms to indicate hypoglycaemia and hyperglycaemia. However, thus far, there is no clear consensus about the cli...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章,评审
doi:10.1002/dmrr.2346
更新日期:2012-12-01 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
abstract:BACKGROUND:Current guidelines recommend screening the feet of diabetic subjects with a 10-g monofilament or tuning fork. We investigated which tests and locations on the feet have the best predictive value regarding 1-year ulcer-free survival in diabetic subjects participating in the prospective Rotterdam Diabetic Foot...
journal_title:Diabetes/metabolism research and reviews
pub_type: 杂志文章
doi:10.1002/dmrr.3119
更新日期:2019-03-01 00:00:00