Abstract Title:

Toxicity of Atorvastatin on Pancreas Mitochondria: A justification for increased risk of Diabetes Mellitus.

Abstract Source:

Basic Clin Pharmacol Toxicol. 2016 Aug 24. Epub 2016 Aug 24. PMID: 27553485

Abstract Author(s):

Melina Sadighara, Zahra Amirsheardost, Mohsen Minaiyan, Valiollah Hajhashemi, Parvaneh Naserzadeh, Ahmad Salimi, Enayatollah Seydi, Jalal Pourahmad

Article Affiliation:

Melina Sadighara


Statins (including atorvastatin) are a widely used class of drugs, and like all medications, they have a potential for adverse effects. Recently, it has been shown that statins also exert side effects on the pancreas. In vitro studies have suggested that this class of drugs induced a reduction in insulin secretion. Also, the use of statins is associated with a raised risk of diabetes mellitus (DM), but the mechanisms underlying statin-induced diabetes poorly known. Literature data indicate that several statins are able to induce apoptosis signalling. This study was designed to examine the mechanism of atorvastatin on mitochondria obtained from rat pancreas. In our study, mitochondria were obtained from the pancreas and then exposed to atorvastatin and vehicle to investigate probable toxic effects. The results showed that atorvastatin (25, 50, 75, 100 and 125μM) increased reactive oxygen species (ROS) production, mitochondrial swelling, collapse of mitochondrial membrane potential (MMP) and cytochrome c release, the orchestrating factor for mitochondria-mediated apoptosis signalling. Atorvastatin also reduced the ATP levels. These results propose thatthe toxicity of atorvastatin on pancreas mitochondria is a key point for drug-induced apoptotic cell loss in the pancreas and therefore a justification for increased risk of diabetes mellitus. This article is protected by copyright. All rights reserved.

Study Type : In Vitro Study

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