PubMed Journals Articles About "Apelin Involved Progression Diabetic Nephropathy Inhibiting Autophagy Podocytes" RSS

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Showing "Apelin involved progression diabetic nephropathy inhibiting autophagy podocytes" PubMed Articles 1–25 of 15,000+

Apelin involved in progression of diabetic nephropathy by inhibiting autophagy in podocytes.

Podocyte autophagy dysfunction has been reported to be responsible for the progression of diabetic nephropathy (DN), however, the factors contributed to autophagy dysfunction in type 2 diabetes are not fully understood. Among promoting factors in DN, an adipokine, apelin, had been showed to trigger podocyte dysfunction. Therefore, it is hypothesized that apelin, which is increased in plasma in type 2 diabetes, lead to podocyte apoptosis through inhibiting podocyte autophagy, which resulted in podocyte dysfu...

Mangiferin prevents diabetic nephropathy progression and protects podocyte function via autophagy in diabetic rat glomeruli.

Diabetic nephropathy (DN) is one of the most severe microangiopathies of diabetes mellitus and is a leading cause of end stage renal disease. Numerous studies suggest that podocyte injury contributes to progressive proteinuria. Podocytes are highly specialized, terminally differentiated cells that are unable to proliferate, autophagy plays a key role in maintaining the structure and function of podocytes. Autophagy impairment is involved in the pathogenesis of podocyte loss, which leads to massive proteinur...

Berberine attenuates podocytes injury caused by exosomes derived from high glucose-induced mesangial cells through TGFβ1-PI3K/AKT pathway.

Diabetic nephropathy is the most common microvascular complications of diabetes. Berberine is the main active ingredient of Coptis chinensis and previous studies have been showed that berberine could delay the progression of diabetic nephropathy by regulating related cytokines and signaling pathways. Glomerular mesangial cells and podocytes are two vital indigenous cells of kidney and interaction between these two cellular components via exosomes might affect function of glomerulus in diabetic nephropathy c...

Apelin impairs myogenic response to induce diabetic nephropathy in mice.

The cause of the invalid reaction of smooth muscle cells to mechanical stimulation that results in a dysfunctional myogenic response that mediates the disruption of renal blood flow (RBF) in diabetic patients is debatable. The present study revealed that increased apelin concentration in serum of diabetic mice neutralized the myogenic response mediated by apelin receptor (APJ) and resulted in increased RBF, which promoted the progression of diabetic nephropathy. The results showed that apelin concentration,...

Apelin/APJ system: a novel potential therapy target for kidney disease.

Apelin is an endogenous ligand of seven-transmembrane G protein-coupled receptor APJ. Apelin and APJ are distributed in various tissues, including the heart, lung, kidney, and even in tumor tissues. Studies show that apelin mRNA is highly expressed in the inner stripe of kidney outer medulla, which plays an important role in process of water and sodium balance. Additionally, more studies also indicate that apelin/APJ system exerts a broad range of activities in kidney. Therefore, we review the role of apeli...

Effects of apelin peptides on diabetic complications.

Diabetes is a metabolic disorder with multiple complications, including cardiomyopathy, retinopathy, nephropathy and neuropathy. Diabetic complications are the major cause of disability and death in diabetic patients. Apelin, a recently identified adipokine peptide, has been found to play important roles in diabetic complications. Here we summarize the current knowledge on the role of apelin in the pathogenesis of different diabetic complications. We also propose that similar to insulin resistance or leptin...

Swiprosin-1 Promotes Mitochondria-Dependent Apoptosis of Glomerular Podocytes via P38 MAPK Pathway in Early-Stage Diabetic Nephropathy.

Podocyte injury, especially podocyte apoptosis, plays a major role in early-stage diabetic nephropathy (DN). Swiprosin-1, also known as EF hand domain containing 2 (EFhd2), is a Ca2+-binding protein in different cell types. However, the function of swiprosin-1 in podocytes remains unknown.

The cellular selection between apoptosis and autophagy: roles of vitamin D, glucose and immune response in diabetic nephropathy.

Apoptosis, autophagy and cell cycle arrest are cellular responses to injury which are supposed to play fundamental roles in initiation and progression of diabetic nephropathy (DN). The aims of the present study is to shed light on the potential effects of vitamin D analog 22-oxacalcitriol (OCT) on different cell responses during DN, and the possible interplay between both glucose, immune system and vitamin D in determining the cell fate.

Diabetic nephropathy: is it always there? Assumptions, weaknesses and pitfalls in the diagnosis.

Diabetic nephropathy is defined as a microvascular complication of the kidneys induced by diabetes mellitus and is characterized by albuminuria and progressive loss of kidney function. However, neither albuminuria nor glomerular filtration rate decline are diabetic nephropathy-specific markers, thus the diagnosis of diabetic nephropathy greatly depends on assumptions. Several factors should be taken into account when urinary albumin levels are assessed before establishing the diagnosis of diabetic nephropat...

Salvianolic Acid A Protects Against Diabetic Nephropathy through Ameliorating Glomerular Endothelial Dysfunction via Inhibiting AGE-RAGE Signaling.

Glomerular endothelium dysfunction leads to the progression of renal architectonic and functional abnormalities in early-stage diabetic nephropathy (DN). Advanced glycation end products (AGEs) and receptor for AGEs (RAGE) are proved to play important roles in diabetic nephropathy. This study investigated the role of Salvianolic acid A (SalA) on early-stage DN and its possible underlying mechanism.

Clinicopathological analysis of biopsy-proven diabetic nephropathy based on the Japanese classification of diabetic nephropathy.

The Japanese classification of diabetic nephropathy reflects the risks of mortality, cardiovascular events and kidney prognosis and is clinically useful. Furthermore, pathological findings of diabetic nephropathy are useful for predicting prognoses. In this study, we evaluated the characteristics of pathological findings in relation to the Japanese classification of diabetic nephropathy and their ability to predict prognosis.

Enhanced insulin receptor, but not PI3K, signalling protects podocytes from ER stress.

Disruption of the insulin-PI3K-Akt signalling pathway in kidney podocytes causes endoplasmic reticulum (ER) stress, leading to podocyte apoptosis and proteinuria in diabetic nephropathy. We hypothesised that by improving insulin sensitivity we could protect podocytes from ER stress. Here we use established activating transcription factor 6 (ATF6)- and ER stress element (ERSE)-luciferase assays alongside a novel high throughput imaging-based C/EBP homologous protein (CHOP) assay to examine three models of im...

Urinary afamin levels are associated with the progression of diabetic nephropathy.

In this study, we applied quantitative proteomic analysis to identify urinary proteins associated with diabetic nephropathy (DN).

Icariin modulates mitochondrial function and apoptosis in high glucose-induced glomerular podocytes through G protein-coupled estrogen receptors.

Podocyte apoptosis in glomerular lesions has been found to have a dominant role in the progression of diabetic nephropathy. The present research aimed to explore the beneficial effect of icariin on diabetic podocytes by interfering in the process of apoptosis. Podocyte apoptosis was significantly exacerbated after high glucose treatment, with the level of reactive oxygen species (ROS) increasing simultaneously. Here, we demonstrated that icariin, which is a G protein-coupled estrogen receptor 1 (GPER) agoni...

The metabolomics window into diabetic complications.

Diabetes has become a major global health problem. The elucidation of characteristic metabolic alterations during the diabetic progression is critical for better understanding its pathogenesis and identifying potential biomarkers and drug targets. Metabolomics is a promising tool to reveal the metabolic changes and the underlying mechanism involved in the pathogenesis of diabetic complications. The present review provides an update on the application of metabolomics in diabetic complications, including diab...

Diabetic dyslipidemia and microvascular complications of diabetes.

Diabetic dyslipidemia is one of the main risk factors for atherosclerosis. Although its participation in diabetic microvascular complications is not that dominant, dyslipidemia may play an important role in formation and progression of these complications. Pathophysiological mechanisms by which diabetic dyslipidemia affects the etiopathogenesis of diabetic nephropathy, retinopathy, neuropathy and diabetic foot are presented. The data from clinical studies and treatment possibilities for particular microvasc...

Histamine H4 receptor antagonism prevents the progression of diabetic nephropathy in male DBA2/J mice.

Due to the incidence of diabetes and the related morbidity of diabetic nephropathy, identification of new therapeutic strategies represents a priority. In the last few decades new and growing evidence on the possible role of histamine in diabetes has been provided. In particular, the histamine receptor H4R is emerging as a new promising pharmacological target for diabetic nephropathy. The aim of this study was to evaluate the efficacy of selective H4R antagonism by JNJ39758979 on the prevention of diabetic ...

Effects of the SGLT2 inhibitor ipragliflozin on various diabetic symptoms and progression of overt nephropathy in type 2 diabetic mice.

Diabetic nephropathy is the leading cause of end-stage renal disease and is associated with high-cardiovascular risk and significant morbidity and mortality. The recent development of sodium-glucose cotransporter (SGLT) 2 inhibitors offers a new antidiabetic therapy via enhanced glucose excretion; however, the beneficial effect of these drugs on the development of type 2 diabetic overt nephropathy is still largely unclear. We examined the therapeutic effects of the SGLT2 inhibitor ipragliflozin on various d...

Rho-Kinase Blockade Attenuates Podocyte Apoptosis by Inhibiting the Notch Signaling Pathway in Diabetic Nephropathy.

Podocyte apoptosis is a key process in the onset of diabetic nephropathy. A significant body of evidence shows that the Notch signaling pathway plays a central role in this process. We found that Rho-kinase mediates transforming growth factor β (TGF-β)-induced Notch ligand Jag1 expression. Importantly, TGF-β-mediated podocyte apoptosis was attenuated by Rho-kinase inhibition. Mechanistically, Rho-kinase regulated Jag1 induction via the extracellular signal-regulated kinase (ERK) 1/2 and c-Jun N-terminal ...

Angiotensin II induces calcium-mediated autophagy in podocytes through enhancing reactive oxygen species levels.

As well known, abnormalities of Angiotensin II (Ang II) is closely related with glomerular damage. This study was to investigate whether Ang II could affect autophagy in podocytes via oxidative stress, and whether autophagy had a positive role in protecting podocytes impaired by Ang II. 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay showed that Ang II induced podocyte death. The measurements of malondialdehyde (MDA) and H2O2 levels, and flow cytometry assay revealed that Ang II con...

Knockdown of Angiopoietin-Like Protein 2 Ameliorates Diabetic Nephropathy by Inhibiting TLR4.

Angiopoietin-like protein 2 (ANGPTL2) was reported to be implicated in the pathogenesis of inflammatory disease. Its role in diabetic nephropathy (DN) remained illdefined.

FL-926-16, a novel bioavailable carnosinase-resistant carnosine derivative, prevents onset and stops progression of diabetic nephropathy in db/db mice.

The advanced glycation endproducts (AGEs) participate in the pathogenesis of diabetic nephropathy (DN) by promoting renal inflammation and injury. L-carnosine acts as a quencher of the AGE precursors reactive carbonyl species (RCS), but it is rapidly inactivated by carnosinase. This study evaluated the effect of FL-926-16, a carnosinase-resistant and bioavailable carnosine derivative, on the onset and progression of DN in db/db mice.

Activity of group 2 innate lymphoid cells is associated with chronic inflammation and dysregulated metabolic homeostasis in type 2 diabetic nephropathy.

The metabolic syndrome (MS) is an independent risk factor for type 2 diabetic nephropathy, and accompanied by subclinical inflammation which involves immune-deriving factors. Emerging studies indicate that ILC2s can regulate adipose metabolism, but much less is known about the activity of ILC2s in metabolic imbalance in obesity and diabetes. The present study explored the effect of ILC2s-related molecules on the occurrence of metabolic syndrome in type 2 diabetic nephropathy. Thirty patients with type 2 dia...

Potential serum biomarkers for early detection of diabetic nephropathy.

Diabetic nephropathy (DN) is considered as one of the diabetic complications affecting up to 40% of patients with type 1 or type 2 diabetes. In clinical practice, the frequently used markers of renal disease and progression are serum creatinine, estimated glomerular filtration rate (eGFR) and albuminuria. The aim of this study is to determine new biomarkers in human serum which are promising for early detection of DN.

Gliflozins slow down the progression of diabetic kidney disease.

Until recently progression of diabetic kidney disease could have been slowed down only by the inhibition of the renin-angiotensin system. Inhibitors of SGLT2 (sodium-glucose transporter 2) in the proximal tubulus of the kidney induce natriuresis and by the activation of the tubuloglomerular feedback increase the tone of the afferent arteriole and decrease the glomerular pressure. Empagliflozin in the study EMPA-REG Outcome significantly decreased the risk of progression of diabetic kidney disease and furthe...

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