Abstract:
:Metabolic inflammatory damage, characterized by Toll-like receptor 4 (TLR4) signaling activation, is a major mechanism underlying lipotoxicity-induced β-cell damage. The present study is aimed at determining whether G protein-coupled receptor 4 (GPR40) agonist can improve β-cell lipotoxicity-induced damage by inhibiting the TLR4-NF-κB pathway. Lipotoxicity, inflammation-damaged β-cells, obese SD, and TLR4KO rat models were used in the study. In vitro, TAK-875 inhibited the lipotoxicity- and LPS-induced β-cell apoptosis in a concentration-dependent manner, improved the insulin secretion, and inhibited the expression of TLR4 and NF-κB subunit P65. Besides, silencing of TLR4 expression enhanced the protective effects of TAK-875, while TLR4 overexpression attenuated this protective effect. Activation of TLR4 or NF-κB attenuated the antagonism of TAK-875 on PA-induced damage. Moreover, the above process of TAK-875 was partially independent of GPR40 expression. TAK-875 reduced the body weight and inflammatory factors, rebalanced the number and distribution of α or β-cells, inhibited the apoptosis of islet cells, and inhibited the expression of TLR4 and NF-κB subunit P65 in obese rats. Further knockout of the rat TLR4 gene delayed the damage induced by the high-fat diet and synergy with the action of TAK-875. These data suggest that GPR40 agonists antagonized the lipotoxicity β-cell damage by inhibiting the TLR4-NF-κB pathway.
journal_name
J Diabetes Resjournal_title
Journal of diabetes researchauthors
Chen X,Yan Y,Weng Z,Chen C,Lv M,Lin Q,Du Q,Shen X,Yang Ldoi
10.1155/2019/5487962subject
Has Abstractpub_date
2019-12-17 00:00:00pages
5487962eissn
2314-6745issn
2314-6753journal_volume
2019pub_type
杂志文章abstract::Previous studies investigating determinants of changes in glycemic status among individuals with prediabetes mainly focused on glucose-defined prediabetes. In this study, we examined determinants of a regression to normoglycemia or a progression to diabetes among individuals with HbA1c-defined prediabetes. The study i...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2018/5703652
更新日期:2018-10-14 00:00:00
abstract::Inflammatory atherosclerosis is increased in subjects with type 1 diabetes mellitus (T1DM). Normally high-density lipoproteins (HDL) protect against atherosclerosis; however, in the presence of serum amyloid-A- (SAA-) related inflammation this property may be reduced. Fasting blood was obtained from fifty subjects wit...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2015/351601
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVE:To compare the serum concentration of IL-6, IL-10, TNF, IL-8, resistin, and adiponectin in type 1 diabetic patients with and without metabolic syndrome and to determine the cut-off point of the estimated glucose disposal rate that accurately differentiated these groups. DESIGN:We conducted a cross-sectional ...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2015/972073
更新日期:2015-01-01 00:00:00
abstract::Diabetic nephropathy (DN) is one of the most common causes of end-stage renal failure. This study was performed to determine the effect of Dantonic Pill (DP) treatment on β -catenin expression in a rat model of streptozotocin- (STZ-) induced early-stage DN, with irbesartan treatment as a positive control. Including an...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2013/848679
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:Experimental and clinical studies suggest a possible association between vitamin D deficiency and both diabetic retinopathy and maculopathy. METHODS:We have performed a cross-sectional study in adults with types 1 and 2 diabetes mellitus. The relationship between the presence and severity of diabetic retino...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2016/6156217
更新日期:2016-01-01 00:00:00
abstract:Purpose:Nontraditional cardiovascular risk factors as apolipoprotein A (ApoA), apolipoprotein B (ApoB), and the proprotein convertase subtilisin/kexin type 9 (PCSK9) increase the prevalence of cardiovascular mortality in chronic kidney disease (CKD) or in end-stage renal disease (ESRD) through quantitative alterations....
journal_title:Journal of diabetes research
pub_type: 杂志文章,评审
doi:10.1155/2019/6906278
更新日期:2019-12-14 00:00:00
abstract::Insulin resistance plays a key role in the development of type 2 diabetes. It arises from a combination of genetic predisposition and environmental and lifestyle factors including lack of physical exercise and poor nutrition habits. The increased risk of type 2 diabetes is molecularly based on defects in insulin signa...
journal_title:Journal of diabetes research
pub_type: 杂志文章,评审
doi:10.1155/2016/2868652
更新日期:2016-01-01 00:00:00
abstract::The early growth response- (Egr-) 1 has been found to play a key role in organ fibrosis. Metformin has been shown to be effective in attenuating renal tubular epithelial-to-mesenchymal transition (EMT), which is involved in renal fibrosis. However, it is unknown whether metformin improves EMT via inhibiting Egr-1. In ...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2018/1031367
更新日期:2018-06-27 00:00:00
abstract:AIM:To evaluate an agreement in identifying dysglycemia between fasting plasma glucose (FPG) and the 2 hr postprandial glucose tolerance test (OGTT) in a population with high risk of diabetes. METHODS:A total of 6,884 individuals aged 35-65 years recruited for a community-based diabetes prevention program were tested ...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2015/396505
更新日期:2015-01-01 00:00:00
abstract::Forefoot load (FL) contributes to callus formation, which is one of the pathways to diabetic foot ulcers (DFU). In this study, we hypothesized that excessive FL, which cannot be detected by plantar load measurements within laboratory settings, occurs in daily walks. To demonstrate this, we created a FL estimation algo...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2017/5350616
更新日期:2017-01-01 00:00:00
abstract:Background:The risk factors for acute kidney injury (AKI) development in patients with diabetes hospitalized for COVID-19 have not been fully studied yet. In this study, we aimed to estimate the rate of AKI among the hospitalized population with COVID-19 and to identify the risk factors associated with AKI among patien...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2021/6666086
更新日期:2021-01-06 00:00:00
abstract::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 conf...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2016/3142175
更新日期:2016-01-01 00:00:00
abstract:Background:Type 1 diabetes (T1D) in adolescents is associated with alterations in the insulin-like factor system probably caused both by a deranged metabolism and insulinopenia in the portal vein. Objective:To study how the circulating IGF-1 is affected at diagnosis and during subsequent years in adolescents with T1D....
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2018/8623560
更新日期:2018-03-20 00:00:00
abstract::To observe the changes of lung injury when diabetic rats were treated with low concentration of ethanol (EtOH) and analyze the related mechanisms, male Sprague-Dawley (SD) rats were divided into control, diabetic (DM), and EtOH+DM groups. Diabetic rat was mimicked by injection of streptozotocin intraperitoneally. Fast...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2014/107152
更新日期:2014-01-01 00:00:00
abstract::Tripterygium glycosides tablet (TGT) is a Chinese traditional medicine that has been shown to protect podocytes from injury and reduce the proteinuria. The aim of this study was to assess the effect of TGT on renal tubulointerstitial fibrosis and its potential mechanism in high-fat diet fed and STZ-induced diabetic ra...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2015/390428
更新日期:2015-01-01 00:00:00
abstract::The purpose of this study was to investigate the effects of sodium-glucose cotransporter 2 inhibitors (SGLT2i) on the progression of diabetic retinopathy (DR) in patients with type 2 diabetes. The medical records of 21 type 2 diabetic patients who used a SGLT2i and 71 patients with sulfonylurea (control) were reviewed...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2018/6807219
更新日期:2018-12-05 00:00:00
abstract::The retinal vascular system is the only part of the human body available for direct, in vivo inspection. Noninvasive retinal markers are important to identity patients in risk of sight-threatening diabetic retinopathy. Studies have correlated structural features like retinal vascular caliber and fractals with micro- a...
journal_title:Journal of diabetes research
pub_type: 杂志文章,评审
doi:10.1155/2017/2562759
更新日期:2017-01-01 00:00:00
abstract:Background:The effective hemostasis after minor debridement in an outpatient clinic is important and essential. This study is aimed at evaluating the hemostatic efficacy and safety of the kaolin-impregnated dressing for diabetic foot ulcer patient who take an anticoagulant. Methods:A prospective, randomized, clinical ...
journal_title:Journal of diabetes research
pub_type: 杂志文章,随机对照试验
doi:10.1155/2019/9316380
更新日期:2019-11-11 00:00:00
abstract::Background. The feasibility of digital health programs to prevent and manage diabetes in low-income patients has not been adequately explored. Methods. Researchers collaborated with a digital health company to adapt a diabetes prevention program for low-income prediabetes patients at a large safety net clinic. We cond...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2016/8472391
更新日期:2016-01-01 00:00:00
abstract::Zinc (Zn) is an important nutrient that is involved in various physiological metabolisms. Zn dyshomeostasis is often associated with various pathogeneses of chronic diseases, such as metabolic syndrome, diabetes, and related complications. Zn is present in ocular tissue in high concentrations, particularly in the reti...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2013/425854
更新日期:2013-01-01 00:00:00
abstract::To study the relationship between glycosylated hemoglobin (HgbA1c) and myocardial perfusion in type 2 diabetes mellitus (T2DM) patients, we prospectively enrolled 24 patients with known or suspected coronary artery disease (CAD) who underwent adenosine stress by real-time myocardial perfusion echocardiography (RTMPE)....
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2014/243518
更新日期:2014-01-01 00:00:00
abstract:Objective:To evaluate the role of CCAAT/enhancer-binding protein β (C/EBP β (C/EBP. Methods:Rats with OIR were exposed to alternating hypoxic and hyperopic conditions for 14 days. Then, the rats with OIR were assigned randomly to groups that received intravitreal injections of either shRNA lentiviral particles targeti...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2020/2789209
更新日期:2020-03-09 00:00:00
abstract:Background/Aims:It is known that chronic low-grade inflammation contributes to the initiation and development of both diabetes and diabetic nephropathy (DN), so we designed this study to investigate the role of P2X7R and NLRP3 inflammasome in DN pathogenesis and the antagonistic effects of artificially cultivated Ophio...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2018/1390418
更新日期:2018-11-11 00:00:00
abstract::This study evaluated the inflammatory markers in prediabetes and newly diagnosed type 2 diabetes mellitus (T2DM). Inflammatory markers levels were analyzed using one-way analysis of covariance and the association with prediabetes or T2DM risks was examined by logistic regression models. Our data showed increased level...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2016/7965317
更新日期:2016-01-01 00:00:00
abstract::T2DM patients demonstrate reduced GLP-1 receptor (GLP-1R) expression in their gastric glands. Whether induced T2DM and T1DM differently affect the gastric GLP-1R expression is not known. This study assessed extrapancreatic GLP-1R system in glandular stomach of rodents with different types of experimental diabetes. T2D...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2015/561353
更新日期:2015-01-01 00:00:00
abstract::Insulin resistance, which plays a central role in the pathogenesis of type 2 diabetes (T2D), is an early indicator that heralds the occurrence of T2D. It is imperative to understand the metabolic changes that occur at the cellular level in the early stages of insulin resistance. The objective of this study was to dete...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2015/102054
更新日期:2015-01-01 00:00:00
abstract::Macrophage migration inhibitory factor (Mif) is highly expressed in type 1 diabetes mellitus (T1DM). However, there is limited information about how Mif influences the activation of macrophages (Mφ) and dendritic cells (DC) in T1DM. To address this issue, we induced T1DM by administering multiple low doses of streptoz...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2016/7053963
更新日期:2016-01-01 00:00:00
abstract::Poor maternal glycemic control increases maternal and fetal risk for adverse outcomes, and strict management of gestational diabetes mellitus (GDM) is recommended to prevent neonatal and maternal complications. However, risk factors for the requirement of antenatal insulin treatment (AIT) are not well-investigated in ...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2016/9648798
更新日期:2016-01-01 00:00:00
abstract::We investigated effects on glucose and lipid metabolism in combination of JTT-130, a novel intestine-specific microsomal triglyceride transfer protein (MTP) inhibitor, and pioglitazone, peroxisome proliferator-activated receptor (PPAR) γ agonist. Male Zucker diabetic fatty rats were divided into 4 groups: control grou...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2014/890639
更新日期:2014-01-01 00:00:00
abstract:Introduction:Diabetes mellitus type 1 and type 2 are linked to higher prevalence and occurrences of depression. Internet-based depression- and diabetes-specific cognitive behavioral therapies (CBT) can be effective in reducing depressive symptom severity and diabetes-related emotional distress. The aim of the study was...
journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2019/2634094
更新日期:2019-05-14 00:00:00