non-enzymatic glycosylation of proteins is one of the key mechanisms in the pathogenesis of diabetic complications. glycation of igg is of special interest due to its possible influence on the functionality of immunoglobulins and overall immuno-competence. the aim of this study was to clarify more details of in vitro glycation of igg and to study the effect of this modification on its interatio...

oxidative stress and protein glycation play pivotal roles in the pathophysiology of diabetes mellitus and its vascular complications. the present study aimed to investigate the anti-glycation properties of essential oils obtained from different parts of juniperus communis subsp. hemisphaerica . the branchlets of male tree (bmt) and branchlets of female (bft) tree, and fruits of j. communis subs...

A holy grail of curing neurodegenerative diseases is to identify the main causes and mechanisms underlying neuronal death. Many studies have sought to identify these targets in a wide variety of ways, but a more important task is to identify critical molecular targets and their origins. Potential molecular targets include advanced glycation end products (AGEs) that can promote neuronal cell dea...

Aminoguanidine inhibits the formation of advanced glycation end-products, and has been extensively examined in animals. However, administration of aminoguanidine decreases the hepatic content of pyridoxal phosphate. In order to avoid this problem, we developed an aminoguanidine pyridoxal Schiff base adduct and examined its efficacy in vitro as well as in a model of diabetic nephropathy. Mice wi...

Blood oligosaccharides are attached to many proteins after translation, forming glycoproteins. Glycosylation refers to an enzyme-mediated modification that alters protein function, for example, their life span or their interactions with other proteins (1). By contrast, glycation refers to a monosaccharide (usually glucose) attaching nonenzymatically to the amino group of a protein. Glycated hem...

Abstract In this paper, we studied the inhibitory effect of oleanolic acid (OA) on non-enzymatic glycosylation and improvement glycometabolism in insulin resistant (IR) human liver tumour (HepG2) cells. The anti-glycosylation activity OA was determined by bovine serum albumin (BSA) fructose model. results showed that moderately inhibited formation intermediates glycosylation, fructosamine ?-dic...

Background: Advanced glycation endproducts elicit inflammation. However, their role in adipocyte macrophage infiltration and in the development of insulin resistance, especially in the absence of the deleterious biochemical pathways that coexist in diabetes mellitus, remains unknown. We investigated the effect of chronic administration of advanced glycated albumin (AGE-albumin) in healthy rats,...

Diabetic nephropathy is the most common cause of end stage renal failure. In addition to renin pathway, other bioactive molecules are involved in its pathogenesis. Strategies to interrupt pathophysiological pathways are on the horizon. Aliskiren is the renin inhibitor, blocking the first step in renin pathway. Protein kinase C overexpression is blocked by ruboxistaurin. Pentoxifylline and m-TOR...