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Related Concept Videos

Lipid-Lowering Drugs: Statins and Miscellaneous Agents01:20

Lipid-Lowering Drugs: Statins and Miscellaneous Agents

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Hyperlipidemia, a medical condition often referred to as high cholesterol, is characterized by abnormally elevated levels of lipids in the bloodstream. When present in excess, these lipids, specifically cholesterol and triglycerides, can lead to serious health complications, often involving cardiovascular diseases. Illnesses like atherosclerosis, heart attacks, and pancreatitis have all been linked to untreated hyperlipidemia. This means controlling and regulating cholesterol and triglyceride...
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Mitochondrial Membranes01:45

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A single mitochondrion is a bean-shaped organelle enclosed by a double-membrane system. The outer membrane of mitochondria is smooth and contains many porins - the integral membrane transporters. Porins enable free diffusion of ions and small uncharged molecules through the outer mitochondrial membrane but limit the transport of molecules larger than 5000 Daltons. Further, the outer mitochondrial membrane forms a unique structure called membrane contact sites with other subcellular organelles,...
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Electron Transport Chain: Complex I and II01:46

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The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
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Translocation of Proteins into the Mitochondria01:19

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Mitochondrial precursors are translocated to the internal subcompartments via independent mechanisms involving distinct protein machineries called translocases.
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Mitochondria01:37

Mitochondria

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Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
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The Inner Mitochondrial Membrane01:28

The Inner Mitochondrial Membrane

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The inner mitochondrial membrane is the primary site of ATP synthesis. The inner membrane domain that forms a smooth layer adjacent to the outer membrane is called the inner boundary membrane. This domain contains membrane transporters that drive metabolites in and out of the mitochondria.  In contrast, the inner membrane network that invaginates into the matrix space is called the cristae membrane. This domain accounts for principle mitochondrial function as it accommodates the protein...
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Related Experiment Video

Updated: Nov 19, 2025

Experimental Protocol for Detecting Mitochondrial Function in Hepatocytes Exposed to Organochlorine Pesticides
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Effects of statins on mitochondrial pathways.

Hamid Mollazadeh1,2, Erfan Tavana3, Giovanni Fanni4

  • 1Department of Physiology and Pharmacology, Faculty of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran.

Journal of Cachexia, Sarcopenia and Muscle
|January 29, 2021
PubMed
Summary

Statins, used to lower cholesterol and prevent heart disease, can cause myopathy by affecting mitochondria. This review explores how statins impact mitochondrial function and lead to adverse effects.

Keywords:
ApoptosisCoenzyme Q10Cognitive impairmentDiabetesMitochondriaMyopathyRespiratory chainSAMSStatin

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Area of Science:

  • Biochemistry
  • Pharmacology
  • Cell Biology

Background:

  • Statins are primary drugs for hyperlipidemia and cardiovascular disease prevention.
  • They function by inhibiting HMG-CoA reductase, reducing cholesterol synthesis, and enhancing LDL clearance.
  • Statins possess pleiotropic effects, including plaque stabilization and anti-inflammatory actions.

Purpose of the Study:

  • To review the mechanisms by which statins affect mitochondrial function.
  • To elucidate the role of mitochondria in statin-induced myopathies and other adverse effects.

Main Methods:

  • Literature review of studies investigating statin effects on mitochondrial pathways.
  • Analysis of mechanisms including enzyme inhibition, apoptosis induction, and metabolic dysregulation.

Main Results:

  • Statins reduce Coenzyme Q10 levels and inhibit respiratory chain complexes.
  • They induce mitochondrial apoptosis, dysregulate calcium metabolism, and affect CPT2 expression.
  • Statin use is linked to diabetes and dementia via mitochondrial pathway interference, including reduced oxidative phosphorylation and increased oxidative stress.

Conclusions:

  • Statins significantly impact mitochondrial function.
  • Adverse effects like myopathy, diabetes, and dementia may be mediated through mitochondrial pathways.