[Research update of Klotho in kidney injury and repair].

Klotho is highly expressed in the kidney, while soluble Klotho is detectable in the blood, urine, and cerebrospinal fluid, and has multiple hormone-like functions. The role of Klotho in kidney injury has attracted more and more attentions from researchers. Emerging evidence revealed that the transient deficiency of Klotho is an early event of acute kidney injury (AKI), whereas, in chronic kidney disease, this deficiency is sustained not only in the kidney, but also in other organ systems.

SB-216763, a GSK-3β inhibitor, protects against aldosterone-induced cardiac, and renal injury by activating autophagy.

Cardiovascular and renal inflammation induced by Aldosterone (Aldo) plays a pivotal role in the pathogenesis of hypertension and renal fibrosis. GSK-3β contributes to inflammatory cardiovascular and renal diseases, but its role in Aldo-induced hypertension, and renal damage is not clear. In the present study, rats were treated with Aldo combined with SB-216763 (a GSK-3β inhibitor) for 4 weeks.

Protection of CTGF Antibody Against Diabetic Nephropathy in Mice Via Reducing Glomerular β-Catenin Expression and Podocyte Epithelial-Mesenchymal Transition.

Despite substantial progress in medical care, the morbidity rate of diabetic nephropathy (DN) remains high in patients with diabetes. Evidence suggests that connective tissue growth factor (CTGF) induced podocyte injury may contribute to DN and CTGF inhibition could reduce albuminuria. However, to date the mechanisms involved in the effect of CTGF on podocyte injury have not been fully understood.

The role of renal damage on cardiac remodeling in patients with diabetic nephropathy.

Background: Cardiovascular damage and diabetic nephropathy are major complications in patients with Type 2 diabetic nephropathy (T2DN); however, the role of renal damage on cardiac remodeling is not yet fully known.

Methods: A retrospective research was conducted in 254 T2DN patients. All were divided into three groups according to urinary albumin excretion (UAE): the normoalbuminuria group (UAE < 30 mg/g, n = 18), the microalbuminuria group (UAE 30 - 300 mg/g, n = 99) and the macroalbuminuria group (UAE > 300 mg/g, n = 137).

A pilot trial assessing urinary gene expression profiling with an mRNA array for diabetic nephropathy.

Background: The initiation and progression of diabetic nephropathy (DN) is complex. Quantification of mRNA expression in urinary sediment has emerged as a novel strategy for studying renal diseases. Considering the numerous molecules involved in DN development, a high-throughput platform with parallel detection of multiple mRNAs is needed.

Inhibition of integrin-linked kinase by angiotensin II receptor antagonist, irbesartan attenuates podocyte injury in diabetic rats.

Background: Integrin-linked kinase (ILK) dysregulation is involved in the progression of diabetic nephropathy (DN). The aim of this study was to investigate the effects of angiotensin II receptor blocker (ARB), irbesartan, on ILK expression and podocyte injury in DN.

Methods: DN was induced by the combined feeding of high-sucrose, high-fat diet and intra-peritoneal injection of low dose of streptozotocin (35 mg/kg) in spontaneously hypertensive rats.

The roles of connective tissue growth factor and integrin-linked kinase in high glucose-induced phenotypic alterations of podocytes.

Emerging evidence has suggested that podocytes undergo epithelial-mesenchymal transition (EMT) in diabetic nephropathy (DN). Connective tissue growth factor (CTGF) and integrin-linked kinase (ILK) are involved in the progression of DN. However, the underlying mechanisms of EMT are not well understood.

Effects of angiotensin II receptor blocker on myocardial endothelial-to-mesenchymal transition in diabetic rats.

Background: Emerging evidence has indicated that the endothelial-to-mesenchymal transition (EndMT) is a crucial event during early stages of cardiac fibrosis. In the present study, we first investigated the influence of Irbesartan (Irb) on myocardial EndMT in diabetic rats.

Methods: Diabetic rats were divided into two groups: the diabetic group (DM) and the Irb-treated group (DM+Irb).

Effects of angiotensin receptor blocker on phenotypic alterations of podocytes in early diabetic nephropathy.

Background: Emerging evidence suggests that podocyte injury is a crucial event in the stage of diabetic nephropathy (DN), a process in which angiotensin II is implicated. In this study, the authors investigated the influence of irbesartan, an angiotensin receptor blocker, on the phenotypic alterations of podocytes in experimental DN.

Methods: DN was induced by combination of high-sucrose, high-fat diet and intraperitoneal injection of low dose of streptozotocin (35 mg/kg) in spontaneously hypertensive rats.