Morphological changes and Mitochondrial alterations on Cardiomyocytes exposed to Fluoride

Area of Science:

• Cardiology
• Toxicology
• Cell Biology

Background:

• Cardiomyocytes are vital for heart function.
• Mitochondria are crucial for cellular energy and health.
• Fluoride exposure can impact cellular processes.

Purpose of the Study:

• To investigate the effects of sodium fluoride (NaF) on cardiomyocyte morphology.
• To assess NaF's impact on mitochondrial dynamics and calcium ion (Ca2+) concentration.

Main Methods:

• Rat H9c2 cardiomyocytes were treated with varying concentrations of NaF (0.5-5 mmol/L).
• Cellular morphology and mitochondrial characteristics were observed.
• Intracellular Ca2+ levels were quantified.

Main Results:

• NaF induced significant morphological alterations in cardiomyocytes.
• A dose-dependent decrease in both mitochondrial number and Ca2+ concentration was observed.
• These findings indicate cellular damage at the mitochondrial level.

Conclusions:

• Sodium fluoride exerts toxic effects on cardiomyocytes.
• NaF exposure leads to reduced mitochondrial content and impaired calcium homeostasis.
• These cellular changes highlight potential mechanisms of fluoride-induced cardiotoxicity.