scholarly journals Effect of Vitamin D Receptor Activation on the AGE/RAGE System and Myeloperoxidase in Chronic Kidney Disease Patients

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Claudia Torino ◽  
Patrizia Pizzini ◽  
Sebastiano Cutrupi ◽  
Rocco Tripepi ◽  
Antonio Vilasi ◽  
...  

Vitamin D receptor (VDR) activation has been reported to increase circulating levels of the advanced glycation end products (AGE) and their decoy receptor (RAGE). However, until now, the effect of VDR activation on AGE and RAGE has not been tested in the setting of a randomized, double-blind clinical trial. We have therefore analyzed the effect of VDR activation by paricalcitol on pentosidine, S100A12/ENRAGE, and RAGE and on established biomarkers of oxidative stress like myeloperoxidase in CKD patients in the PENNY trial. At baseline, human S100A12/ENRAGE, RAGE, and myeloperoxidase, but not pentosidine, were intercorrelated, and the association between S100A12/ENRAGE and myeloperoxidase (r=0.71, P<0.001) was the strongest among these correlations. Paricalcitol failed to modify biomarkers of the AGE/RAGE system and myeloperoxidase in unadjusted and adjusted analyses by the generalized linear model (GLM). No effect modification by other risk factors was registered. Paricalcitol does not modify biomarkers of the AGE/RAGE system and myeloperoxidase in CKD patients. The apparent increase in RAGE levels by VDR activation reported in previous uncontrolled studies is most likely due to confounding factors rather than to VDR activation per se. This trial is registered with NCT01680198.

2018 ◽  
Vol 34 (5) ◽  
pp. 819-824 ◽  
Author(s):  
Graziella D’arrigo ◽  
Patrizia Pizzini ◽  
Sebastiano Cutrupi ◽  
Rocco Tripepi ◽  
Giovanni Tripepi ◽  
...  

2016 ◽  
Vol 22 ◽  
pp. 4960-4966 ◽  
Author(s):  
Fariba Almassinokiani ◽  
Sepideh Khodaverdi ◽  
Masoud Solaymani-dodaran ◽  
Peyman Akbari ◽  
Abdolreza Pazouki

Author(s):  
Ramin Heshmat ◽  
Ozra Tabatabaei-Malazy ◽  
Shabnam Abbaszadeh-Ahranjani ◽  
Samimeh Shahbazi ◽  
Ghazal Khooshehchin ◽  
...  

2014 ◽  
Vol 57 (11) ◽  
pp. 4710-4719 ◽  
Author(s):  
Anna Y. Belorusova ◽  
Jérôme Eberhardt ◽  
Noëlle Potier ◽  
Roland H. Stote ◽  
Annick Dejaegere ◽  
...  

2018 ◽  
Vol 33 (suppl_1) ◽  
pp. i452-i452
Author(s):  
Belinda Spoto ◽  
Patrizia Pizzini ◽  
Giovanni Tripepi ◽  
Francesca Mallamaci ◽  
Carmine Zoccali

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Justina Owusu ◽  
Fatma Huffman ◽  
Juan Liuzzi ◽  
Tan Li ◽  
Vijaya Narayanan

Abstract Objectives Advanced Glycation End Products, (AGEs) and their soluble receptor (sRAGE) have been implicated in the development of complications and mortality among individuals with type 2 diabetes (T2D). There is limited information on the relationship between AGEs and sRAGE and risk of cardiovascular diseases (CVD) in minority groups, who have a higher burden of T2D. The relationship between AGEs and sRAGE and CVD risks in adults with T2D and vitamin D insufficiency/deficiency was assessed in a minority population. Methods A cross sectional study of Hispanics and African Americans with T2D (n = 64, 41 women and 23 men, mean age = 54 ± 9) recruited from two clinics in Miami Dade. Systolic (SBP) and diastolic blood pressure (DBP), weight and height measurement and serum lipid profile were completed. ELISA kits were used to assess serum levels of AGEs (Biotang Inc/TSZ Elisa, Waltham, MA, USA) and sRAGE (Biotang Inc/TSZ Elisa, Waltham, MA, USA). Multiple linear regression was used to assess association between AGEs, sRAGE and CVD risks. Results A negative and significant association between AGEs and high-density lipoprotein cholesterol (HDL-C)(B = −0.551, P = 0.029) was found. The relationship between AGEs and HDL-C persisted after adjusting for covariates (P < 0.05). sRAGE was significantly associated with SBP (B = 0.015, P = 0.025) and diastolic blood pressure DBP (B = 0.0271, P = 0.037). Results loss significance when association between sRAGE and DBP and SBP were adjusted for covariates such as age, body mass index (BMI), smoking and alcohol intake. Conclusions Our results suggest that AGEs and sRAGE are related to markers of cardiovascular risk such as HDL-C, SBP and DBP in the study population of African Americans and Hispanics with T2D and vitamin D insufficiency/deficiency. Measures on reducing serum levels of AGEs and improving sRAGE and vitamin D are warranted in these populations for risk reduction of CVD. Funding Sources Partial funding for this research was provided through an NIH/NIDDK sponsored grant.


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