Aristolochic acid I: an investigation into the role of food crops contamination, as a potential natural exposure pathway

Author(s):  
Lavinia Paula Drăghia ◽  
Alexandra Teodora Lukinich-Gruia ◽  
Camelia Oprean ◽  
Nikola M. Pavlović ◽  
Virgil Păunescu ◽  
...  
2020 ◽  
Vol 31 (12) ◽  
pp. 2773-2792
Author(s):  
Markus Sellmayr ◽  
Moritz Roman Hernandez Petzsche ◽  
Qiuyue Ma ◽  
Nils Krüger ◽  
Helen Liapis ◽  
...  

BackgroundThe roles of asymptomatic hyperuricemia or uric acid (UA) crystals in CKD progression are unknown. Hypotheses to explain links between UA deposition and progression of CKD include that (1) asymptomatic hyperuricemia does not promote CKD progression unless UA crystallizes in the kidney; (2) UA crystal granulomas may form due to pre-existing CKD; and (3) proinflammatory granuloma-related M1-like macrophages may drive UA crystal-induced CKD progression.MethodsMALDI-FTICR mass spectrometry, immunohistochemistry, 3D confocal microscopy, and flow cytometry were used to characterize a novel mouse model of hyperuricemia and chronic UA crystal nephropathy with granulomatous nephritis. Interventional studies probed the role of crystal-induced inflammation and macrophages in the pathology of progressive CKD.ResultsAsymptomatic hyperuricemia alone did not cause CKD or drive the progression of aristolochic acid I-induced CKD. Only hyperuricemia with UA crystalluria due to urinary acidification caused tubular obstruction, inflammation, and interstitial fibrosis. UA crystal granulomas surrounded by proinflammatory M1-like macrophages developed late in this process of chronic UA crystal nephropathy and contributed to the progression of pre-existing CKD. Suppressing M1-like macrophages with adenosine attenuated granulomatous nephritis and the progressive decline in GFR. In contrast, inhibiting the JAK/STAT inflammatory pathway with tofacitinib was not renoprotective.ConclusionsAsymptomatic hyperuricemia does not affect CKD progression unless UA crystallizes in the kidney. UA crystal granulomas develop late in chronic UA crystal nephropathy and contribute to CKD progression because UA crystals trigger M1-like macrophage-related interstitial inflammation and fibrosis. Targeting proinflammatory macrophages, but not JAK/STAT signaling, can attenuate granulomatous interstitial nephritis.


2013 ◽  
Vol 266 (2) ◽  
pp. 198-203 ◽  
Author(s):  
Zhenzhou Jiang ◽  
Qingli Bao ◽  
Lixin Sun ◽  
Xin Huang ◽  
Tao Wang ◽  
...  

2016 ◽  
Vol 14 (4) ◽  
pp. 3243-3250 ◽  
Author(s):  
Ting Xiang ◽  
Zhangbin Yang ◽  
Baoguo Sun ◽  
Haoxuan Luo ◽  
Shijun Zhang ◽  
...  

2011 ◽  
Vol 8 (6) ◽  
pp. 2183-2192 ◽  
Author(s):  
Xiang Xue ◽  
Li-Kun Gong ◽  
Kazuya Maeda ◽  
Yang Luan ◽  
Xin-Ming Qi ◽  
...  

2018 ◽  
Vol 233 (6) ◽  
pp. 4919-4925 ◽  
Author(s):  
Ji Li ◽  
Mincheng Zhang ◽  
Yong Mao ◽  
Yimao Li ◽  
Xiaoxia Zhang ◽  
...  

2011 ◽  
Vol 24 (10) ◽  
pp. 1710-1719 ◽  
Author(s):  
Volker M. Arlt ◽  
Kateřina Levová ◽  
František Bárta ◽  
Zhanquan Shi ◽  
James D. Evans ◽  
...  

2011 ◽  
Vol 121 (1) ◽  
pp. 43-56 ◽  
Author(s):  
Kateřina Levová ◽  
Michaela Moserová ◽  
Věra Kotrbová ◽  
Miroslav Šulc ◽  
Colin J. Henderson ◽  
...  

2013 ◽  
Vol 12 (10) ◽  
pp. 695-701
Author(s):  
Herve Martial Poumale Poumale ◽  
Alphonsine Nkapwa Guedem ◽  
Louis Pergaud Sandjo ◽  
Bonaventure Tchaleu Ngadjui ◽  
Yoshihito Shiono

A new lupane type triterpene (1), together with betulinic acid (2), friedelin (3), aristolochic acid I (4), alpinumisoflavone (5) and 4’-O-methylepinumisoflavone (6) have been isolated from the leaves of Thecacoris annobonea. The structure of the new compound was elucidated on the basis of 1 and 2D NMR experiments. The isolated compounds were evaluated for their phytotoxicity and antimicrobial activity. 1 exhibited significant antimicrobial activity at 30 μg/ml and compounds 1, 2, 3, 4, 5 and 6 inhibited root growth lettuce at 100 μg/ml. 


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