Effect of the Sound Exposure (IMAGE) Institut Pasteur Caption Sound exposure induces a proliferation of peroxisomes (in green) in the auditory sensory cells of mice harboring pejvakin (Pjvk+/+, center) and causes their degeneration in mice lacking pejvakin (Pjvk-/-, right). Credit Institut Pasteur Usage Restrictions Mention the Institut Pasteur credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.