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Female Wistar rats present particular glucose flux when submitted to classic protocols of experimental diabetes. Biomed J 2022; 46:100539. [DOI: 10.1016/j.bj.2022.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 05/02/2022] [Accepted: 05/12/2022] [Indexed: 11/17/2022] Open
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Banki NF, Ver A, Wagner LJ, Vannay A, Degrell P, Prokai A, Gellai R, Lenart L, Szakal DN, Kenesei E, Rosta K, Reusz G, Szabo AJ, Tulassay T, Baylis C, Fekete A. Aldosterone antagonists in monotherapy are protective against streptozotocin-induced diabetic nephropathy in rats. PLoS One 2012; 7:e39938. [PMID: 22761931 PMCID: PMC3386228 DOI: 10.1371/journal.pone.0039938] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Accepted: 05/29/2012] [Indexed: 11/30/2022] Open
Abstract
Angiotensin converting enzyme inhibitors (ACEi) and angiotensin II receptor blockers (ARB) are the standard clinical therapy of diabetic nephropathy (DN), while aldosterone antagonists are only used as adjuncts. Previously in experimental DN we showed that Na/K ATPase (NKA) is mislocated and angiotensin II leads to superimposed renal progression. Here we investigated the monotherapeutic effect of aldosterone blockers on the progression of DN and renal NKA alteration in comparison to ACEi and ARBs. Streptozotocin-diabetic rats developing DN were treated with aldosterone antagonists; ACEi and ARB. Renal function, morphology, protein level and tubular localization of NKA were analyzed. To evaluate the effect of high glucose per se; HK-2 proximal tubular cells were cultured in normal or high concentration of glucose and treated with the same agents. Aldosterone antagonists were the most effective in ameliorating functional and structural kidney damage and they normalized diabetes induced bradycardia and weight loss. Aldosterone blockers also prevented hyperglycemia and diabetes induced increase in NKA protein level and enzyme mislocation. A monotherapy with aldosterone antagonists might be as, or more effective than ACEi or ARBs in the prevention of STZ-induced DN. Furthermore the alteration of the NKA could represent a novel pathophysiological feature of DN and might serve as an additional target of aldosterone blockers.
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Affiliation(s)
- Nora F. Banki
- 1st Department of Pediatrics, Semmelweis University, Budapest, Hungary
- SE-MTA “Lendulet” Diabetes Research Group, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary
| | - Agota Ver
- Department of Medical Chemistry, Molecular Biology and Pathobiochemistry, Semmelweis University, Budapest, Hungary
| | - Laszlo J. Wagner
- Department of Transplantation and Surgery, Semmelweis University, Budapest, Hungary
| | - Adam Vannay
- Research Laboratory for Pediatrics and Nephrology, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary
| | - Peter Degrell
- 2nd Department of Medicine and Nephrological Center, Pécs, Hungary
| | - Agnes Prokai
- 1st Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - Renata Gellai
- 1st Department of Pediatrics, Semmelweis University, Budapest, Hungary
- SE-MTA “Lendulet” Diabetes Research Group, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary
| | - Lilla Lenart
- 1st Department of Pediatrics, Semmelweis University, Budapest, Hungary
- SE-MTA “Lendulet” Diabetes Research Group, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary
| | | | - Eva Kenesei
- 1st Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - Klara Rosta
- Department of Medical Chemistry, Molecular Biology and Pathobiochemistry, Semmelweis University, Budapest, Hungary
| | - Gyorgy Reusz
- 1st Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - Attila J. Szabo
- 1st Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - Tivadar Tulassay
- 1st Department of Pediatrics, Semmelweis University, Budapest, Hungary
- Research Laboratory for Pediatrics and Nephrology, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary
| | - Chris Baylis
- Departments of Physiology and Functional Genomics and Medicine, University of Florida, Gainesville, Florida, United States of America
| | - Andrea Fekete
- 1st Department of Pediatrics, Semmelweis University, Budapest, Hungary
- SE-MTA “Lendulet” Diabetes Research Group, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary
- * E-mail:
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Reis CP, Figueiredo IV, Carvalho RA, Jones J, Nunes P, Soares AF, Silva CF, Ribeiro AJ, Veiga FJ, Damgé C, Cabrita AMS, Neufeld RJ. Toxicological assessment of orally delivered nanoparticulate insulin. Nanotoxicology 2009. [DOI: 10.1080/17435390802398309] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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