Related Experiment Video
Updated: May 24, 2026
08:51
Data Acquisition and Analysis In Brainstem Evoked Response Audiometry In Mice
Published on: May 10, 2019
[Epigenetics--a new perspective for the study of deafness]
Fei Xu1, Hui-Jun Wang, Duan Ma
1Key Laboratory of Molecular Medicine, Ministry of Education, Shanghai Medical College, Fudan University, China. dashing1988@yahoo.c
Yi Chuan = Hereditas
|March 20, 2012
Summary
Epigenetics, including microRNA mutations and DNA methylation, plays a significant role in hearing loss. Further research into these epigenetic factors is crucial for understanding the causes of deafness.
Area of Science:
- Otolaryngology
- Genetics
- Epigenetics
Background:
- Hearing loss is a prevalent human sensory disorder, affecting approximately 1-3 in 1000 newborns.
- Causes often involve inner ear abnormalities or cochlear hair cell degeneration, with genetic factors playing a substantial role.
- While specific gene mutations are known, the overall etiology of deafness remains incompletely understood.
Purpose of the Study:
- To review current research on the contribution of epigenetics to hearing and deafness.
- To highlight key epigenetic mechanisms implicated in hearing impairment.
Main Methods:
- Literature review of studies investigating epigenetic modifications in hearing loss.
- Analysis of research on microRNA (miRNA) and DNA methylation in the context of auditory function and dysfunction.
Main Results:
- Epigenetic factors, such as miR-96 mutations, are linked to progressive hearing loss.
- Aberrant CpG methylation is associated with inherited syndromes causing hearing loss.
- Epigenetics offers a significant, yet underexplored, dimension to the etiology of deafness.
Conclusions:
- Epigenetic mechanisms represent a critical area for understanding the complex causes of hearing loss.
- Further investigation into epigenetics is essential for advancing the diagnosis and potential treatment of deafness.
Related Concept Videos
01:46Epigenetic Regulation
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
01:37Epigenetic Regulation
Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
X-chromosome...
01:46Epigenetic Regulation
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
02:30Genomic Imprinting and Inheritance
Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
01:20Gene-Environment Interactions
Gene expression is a dynamic process that is significantly influenced by environmental factors. This interaction underlies the complex nature of biological development and the phenotypic differences observed among individuals, even among those with identical genetic makeups. Factors such as radiation, temperature, behavior, nutrition, and stress play pivotal roles in determining how genes are expressed. The concept of the reaction range is central to understanding this interaction. It posits...
03:17Inheritance of Chromatin Structures
Epigenetics is the study of inherited changes in a cell's phenotype without changing the DNA sequences. It provides a form of memory for the differential gene expression pattern to maintain cell lineage, position-effect variegation, dosage compensation, and maintenance of chromatin structures such as telomeres and centromeres. For example, the structure and location of the centromere on chromosomes are epigenetically inherited. Its functionality is not dictated or ensured by the underlying DNA...