Effects of sound stimuli on the phenotypic and genotypic characteristics of Staphylococcus aureus / Isma Syahril Ismail

When listening to music, the ear is the closest organ to be exposed to sound. The external auditory canal of the ear is colonised by normal flora such as Staphylococcus aureus, which is inevitably exposed to sound waves. In an immunocompromised patient, a change in the equilibrium of the microflora...

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Main Author:	Ismail, Isma Syahril
Format:	Thesis
Language:	English
Published:	2016
Subjects:	Medical technology RZ Other systems of medicine
Online Access:	https://ir.uitm.edu.my/id/eprint/18840/1/TM_ISMA%20SYAHRIL%20ISMAIL%20MD%2016_5.pdf
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id	my-uitm-ir.18840
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spelling	my-uitm-ir.188402022-04-18T03:02:33Z Effects of sound stimuli on the phenotypic and genotypic characteristics of Staphylococcus aureus / Isma Syahril Ismail 2016 Ismail, Isma Syahril Medical technology RZ Other systems of medicine When listening to music, the ear is the closest organ to be exposed to sound. The external auditory canal of the ear is colonised by normal flora such as Staphylococcus aureus, which is inevitably exposed to sound waves. In an immunocompromised patient, a change in the equilibrium of the microflora would be detrimental. This study aims to determine whether S. aureus undergoes any phenotypic or genotypic changes after exposure to various types of sounds. S. aureus was exposed to sounds produced from two musical instruments i.e. acoustic and electrical; and solo vocalisation. A non-exposed group was included as a control. The bacteria in liquid medium were exposed to the sounds while incubating at 37°C. After nine hours of exposure to the various types of sound, the bacteria were evaluated for any changes in phenotypic and genotypic characteristics. Results showed that there was no change in the growth pattern of the bacteria although the growth rate was enhanced in all the exposed groups. However, there was no change in their morphology, biochemical properties and susceptibility to three antibiotics. The biofilm production of the bacteria increased following the exposure to all types of sound. Protein profile of the acoustic and electrical instrument groups showed a deletion of a 30 to 32 kDa protein but the nucleotide sequences of seven housekeeping genes of the bacteria were not altered. In conclusion, exposure of S. aureus to audible sounds produced by acoustic and electrical instruments, as well as solo vocalisation resulted in some changes in their biological characteristics. 2016 Thesis https://ir.uitm.edu.my/id/eprint/18840/ https://ir.uitm.edu.my/id/eprint/18840/1/TM_ISMA%20SYAHRIL%20ISMAIL%20MD%2016_5.pdf text en public mphil masters Universiti Teknologi MARA Faculty of Medicine
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
topic	Medical technology RZ Other systems of medicine
spellingShingle	Medical technology RZ Other systems of medicine Ismail, Isma Syahril Effects of sound stimuli on the phenotypic and genotypic characteristics of Staphylococcus aureus / Isma Syahril Ismail
description	When listening to music, the ear is the closest organ to be exposed to sound. The external auditory canal of the ear is colonised by normal flora such as Staphylococcus aureus, which is inevitably exposed to sound waves. In an immunocompromised patient, a change in the equilibrium of the microflora would be detrimental. This study aims to determine whether S. aureus undergoes any phenotypic or genotypic changes after exposure to various types of sounds. S. aureus was exposed to sounds produced from two musical instruments i.e. acoustic and electrical; and solo vocalisation. A non-exposed group was included as a control. The bacteria in liquid medium were exposed to the sounds while incubating at 37°C. After nine hours of exposure to the various types of sound, the bacteria were evaluated for any changes in phenotypic and genotypic characteristics. Results showed that there was no change in the growth pattern of the bacteria although the growth rate was enhanced in all the exposed groups. However, there was no change in their morphology, biochemical properties and susceptibility to three antibiotics. The biofilm production of the bacteria increased following the exposure to all types of sound. Protein profile of the acoustic and electrical instrument groups showed a deletion of a 30 to 32 kDa protein but the nucleotide sequences of seven housekeeping genes of the bacteria were not altered. In conclusion, exposure of S. aureus to audible sounds produced by acoustic and electrical instruments, as well as solo vocalisation resulted in some changes in their biological characteristics.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Ismail, Isma Syahril
author_facet	Ismail, Isma Syahril
author_sort	Ismail, Isma Syahril
title	Effects of sound stimuli on the phenotypic and genotypic characteristics of Staphylococcus aureus / Isma Syahril Ismail
title_short	Effects of sound stimuli on the phenotypic and genotypic characteristics of Staphylococcus aureus / Isma Syahril Ismail
title_full	Effects of sound stimuli on the phenotypic and genotypic characteristics of Staphylococcus aureus / Isma Syahril Ismail
title_fullStr	Effects of sound stimuli on the phenotypic and genotypic characteristics of Staphylococcus aureus / Isma Syahril Ismail
title_full_unstemmed	Effects of sound stimuli on the phenotypic and genotypic characteristics of Staphylococcus aureus / Isma Syahril Ismail
title_sort	effects of sound stimuli on the phenotypic and genotypic characteristics of staphylococcus aureus / isma syahril ismail
granting_institution	Universiti Teknologi MARA
granting_department	Faculty of Medicine
publishDate	2016
url	https://ir.uitm.edu.my/id/eprint/18840/1/TM_ISMA%20SYAHRIL%20ISMAIL%20MD%2016_5.pdf
_version_	1783733709585776640

Effects of sound stimuli on the phenotypic and genotypic characteristics of Staphylococcus aureus / Isma Syahril Ismail

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