Home About us Editorial board Search Ahead of print Current issue Archives Submit article Instructions Subscribe Contacts Login 
  Users Online: 620 Home Print this page Email this page Small font sizeDefault font sizeIncrease font size  
Year : 2014  |  Volume : 4  |  Issue : 1  |  Page : 3-6

Effect of prenatal chronic noise exposure on the growth and development of body and brain of chick embryo

Department of Anatomy, PDM Dental College, Bahadurgarh, Haryana, India

Correspondence Address:
Alpana Goel Kesar
F-13/6, Model Town-2, New Delhi - 110 009
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2229-516X.125666

Rights and Permissions

Context: Noise acts as an environmental stressor as has been demonstrated by an increased brain acetyl cholinesterase activity as well as elevated plasma corticosterone and adrenocorticotropic hormone levels. Noise can lead to neurodegenerative changes in the brain and in the ear. Aim: This study was undertaken to investigate the effect of chronic noise on growth and development during the sensitive period of embryonic life. Materials and Methods: In this study, we analyzed the body weight, brain weight and brain size following prenatal chronic noise exposure. Fertilized eggs of domestic chicks were exposed to chronic excessive acoustic stimulation with frequency of the sound ranging from 30 to 3000 Hz with a peak at 2700 Hz was given at 110 dB sound pressure level from embryonic day (E) 10 until hatching. Results: An appreciable decrease in body weight, brain weight and brain size was evident in the experimental group exposed to noise. A generalized decrease in the neuronal nuclear size and increase in the density of neurons was also observed. Conclusion: These observations could be an indicator of growth and developmental retardation following exposure to noise.

Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)

 Article Access Statistics
    PDF Downloaded479    
    Comments [Add]    
    Cited by others 7    

Recommend this journal