scholarly journals Protective Effect of Hydroxysafflor Yellow A on Nephropathy by Attenuating Oxidative Stress and Inhibiting Apoptosis in Induced Type 2 Diabetes in Rat

2020 ◽  
Vol 2020 ◽  
pp. 1-11 ◽  
Author(s):  
Maosheng Lee ◽  
Hengxia Zhao ◽  
Xuemei Liu ◽  
Deliang Liu ◽  
Jianping Chen ◽  
...  

Diabetic nephropathy (DN) is a serious complication of diabetes mellitus, and its prevalence has been increasing all over the world, which is also the leading cause of end-stage renal failure. Hydroxysafflor yellow A (HSYA) is the main active chemical component of Carthamus tinctorius L., and it is commonly used in patients with cardiovascular and cerebrovascular diseases in China. The aim of this study was to investigate the renal protective effects and molecular mechanisms of HSYA on high-fat diet (HFD) and streptozotocin- (STZ-) induced DN in rats. The DN rats were treated with HSYA for eight weeks. We assessed creatinine (CR), urea nitrogen (UN), glomerular volume, podocyte number, renal inflammation, oxidative stress, and cells apoptosis markers after HSYA treatment. The number of apoptotic cells was measured by the TUNEL assay, and apoptosis-related proteins BAX, caspase-3, and BCL-2 in the renal tissue were analyzed by western blot. The treatment with HSYA significantly decreased fasting blood glucose, CR, UN, and blood lipid profile, including triglyceride and total and low-density lipoprotein cholesterol, even though it did not change the rats’ body weights. The western blot results indicated that HSYA reversed the upregulation of BAX and caspase-3 and significantly increased BCL-2 in renal tissue. Moreover, the levels of TNF-α and the inflammatory products, including free fatty acids (FFA) and lactic dehydrogenase (LDH) in the HSYA group, were significantly decreased. For the oxidative stress marker, the superoxide dismutase (SOD) markedly increased in the HSYA treatment group, while the malondialdehyde (MDA) in the serum and kidney tissue evidently decreased. In conclusion, HSYA treatment preserved kidney function in diabetic nephropathy in the HFD- and STZ-induced rats. The potential mechanism of renal protective effect of HSYA might be through inhibiting oxidative stress, reducing inflammatory reaction, and attenuating renal cell apoptosis. Our studies present a promising use for Hydroxysafflor yellow A in the treatment of type 2 diabetes mellitus.

2015 ◽  
Vol 6 (3) ◽  
Author(s):  
Nita Singh ◽  
Sunil Mahajan ◽  
Senthil K Subramani ◽  
Dhananjay Yadav ◽  
Lokendra Singh ◽  
...  

Aims: ‘Triphala’ constituting equal parts of three medicinal dried plant fruits Emblica Officinalis Gaertn., Terminalia chebula Retz. and Terminalia bellerica Gaertn. is an antioxidant rich Ayurvedic formulation. The present study assessed therapeutic as well as protective effects of Triphala on human subjects with Type 2 diabetes mellitus (T2DM) and Impaired glucose tolerance (IGT). Materials and methods: Triphala at a dose of 5 gms BD was administered to two cohorts viz., IGT, N= 20 and T2DM, N=30 consecutively for a period of 12 months. The therapeutic efficacy was assessed quarterly by monitoring blood glucose and lipid levels; the protective effect by monitoring antioxidants level quarterly and DNA damage annually. Toxicity if any, to liver and kidney due to long term administration was assessed quarterly in both cohorts.Results: Continuous ‘Triphala’ therapy for 12 months significantly reduced blood glucose (p≤0.001) and lipid levels (p≤0.05) in both the cohorts. Triphala resisted oxidative stress generated during the course of hyperglycemia by significantly increasing the activity of super oxide dismutase and Catalase (p≤0.001) and the level of reduced glutathione (p≤0.001). Protective effect on DNA was accessed through significant reduction in the comet tail length (p≤0.001).Conclusions: ‘Triphala’ ameliorated not only the oxidative stress but also normalized glucose and lipid homeostasis in subjects with impaired glucose and T2DM. 


2021 ◽  
pp. 239936932098478
Author(s):  
Joana Marques ◽  
Patrícia Cotovio ◽  
Mário Góis ◽  
Helena Sousa ◽  
Fernando Nolasco

Diabetic nephropathy is a well known complication of diabetes mellitus and the leader cause of end -stage renal disease worldwide. Nonetheless, other forms of renal involvement can occur in diabetic population. Since it has prognostic and therapeutic implications, differentiating non-diabetic renal disease from diabetic nephropathy is of great importance. We report an 80-year-old man with well-controlled type 2 diabetes mellitus and hypertension, who presented with rapid deterioration of renal function, nephrotic proteinuria, microscopic hematuria and leukocyturia. The atypical clinical presentation prompted us to perform a kidney biopsy. A diagnosis of proliferative glomerulonephritis with monoclonal immunoglobulin deposits (light chain only variant) was made, with however some chronic histological aspects which made us took a conservative therapeutic attitude. We emphasize that other causes of chronic proteinuric kidney disease should be considered in patients with type 2 diabetes mellitus, based on clinical suspicion, absence of other organ damage and mostly if an atypical presentation is seen. We review the spectrum of monoclonal gammopathies of renal significance, focusing on this rare and newly describe entity.


2021 ◽  
Vol 22 (3) ◽  
pp. 1059
Author(s):  
Bodo C. Melnik

Epidemiological studies associate milk consumption with an increased risk of Parkinson’s disease (PD) and type 2 diabetes mellitus (T2D). PD is an α-synucleinopathy associated with mitochondrial dysfunction, oxidative stress, deficient lysosomal clearance of α-synuclein (α-syn) and aggregation of misfolded α-syn. In T2D, α-syn promotes co-aggregation with islet amyloid polypeptide in pancreatic β-cells. Prion-like vagal nerve-mediated propagation of exosomal α-syn from the gut to the brain and pancreatic islets apparently link both pathologies. Exosomes are critical transmitters of α-syn from cell to cell especially under conditions of compromised autophagy. This review provides translational evidence that milk exosomes (MEX) disturb α-syn homeostasis. MEX are taken up by intestinal epithelial cells and accumulate in the brain after oral administration to mice. The potential uptake of MEX miRNA-148a and miRNA-21 by enteroendocrine cells in the gut, dopaminergic neurons in substantia nigra and pancreatic β-cells may enhance miRNA-148a/DNMT1-dependent overexpression of α-syn and impair miRNA-148a/PPARGC1A- and miRNA-21/LAMP2A-dependent autophagy driving both diseases. MiRNA-148a- and galactose-induced mitochondrial oxidative stress activate c-Abl-mediated aggregation of α-syn which is exported by exosome release. Via the vagal nerve and/or systemic exosomes, toxic α-syn may spread to dopaminergic neurons and pancreatic β-cells linking the pathogenesis of PD and T2D.


Metabolism ◽  
2004 ◽  
Vol 53 (11) ◽  
pp. 1395-1398 ◽  
Author(s):  
Kiyoko Nawata ◽  
Motoi Sohmiya ◽  
Mikiko Kawaguchi ◽  
Masateru Nishiki ◽  
Yuzuru Kato

2016 ◽  
Vol 30 (5) ◽  
pp. 923-927 ◽  
Author(s):  
Hidenori Senba ◽  
Shinya Furukawa ◽  
Takenori Sakai ◽  
Tetsuji Niiya ◽  
Teruki Miyake ◽  
...  

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