PUBLICATION

Avocado Oil Extract Modulates Auditory Hair Cell Function through the Regulation of Amino Acid Biosynthesis Genes

Authors
Nam, Y.H., Rodriguez, I., Jeong, S.Y., Pham, T.N.M., Nuankaew, W., Kim, Y.H., Castañeda, R., Jeong, S.Y., Park, M.S., Lee, K.W., Lee, J.S., Kim, D.H., Park, Y.H., Kim, S.H., Moon, I.S., Choung, S.Y., Hong, B.N., Jeong, K.W., Kang, T.H.
ID
ZDB-PUB-190113-3
Date
2019
Source
Nutrients   11(1): (Journal)
Registered Authors
Keywords
HEI-OC1, avocado oil, hair cell, mice, sensorineural hearing loss, zebrafish
MeSH Terms
  • Amino Acids/biosynthesis*
  • Animals
  • Auditory Perception/drug effects
  • Cochlea/cytology
  • Cochlea/drug effects
  • Cochlea/metabolism
  • Gene Expression Regulation/drug effects*
  • Hair Cells, Auditory/drug effects*
  • Hair Cells, Auditory/metabolism
  • Hair Cells, Auditory/physiology
  • Hearing Loss, Noise-Induced/drug therapy
  • Hearing Loss, Noise-Induced/genetics
  • Hearing Loss, Noise-Induced/metabolism
  • Hearing Loss, Noise-Induced/physiopathology
  • Hearing Loss, Sensorineural*/drug therapy
  • Hearing Loss, Sensorineural*/genetics
  • Hearing Loss, Sensorineural*/metabolism
  • Hearing Loss, Sensorineural*/physiopathology
  • Metabolic Networks and Pathways/drug effects
  • Metabolic Networks and Pathways/genetics
  • Mice
  • Persea/chemistry*
  • Phytotherapy*
  • Plant Extracts/pharmacology
  • Plant Extracts/therapeutic use
  • Plant Oils/pharmacology*
  • Plant Oils/therapeutic use
  • Sequence Analysis, RNA
  • Zebrafish
PubMed
30626089 Full text @ Nutrients
CTD
30626089
Abstract
Sensorineural hearing loss (SNHL) is one of the most common causes of disability, affecting over 466 million people worldwide. However, prevention or therapy of SNHL has not been widely studied. Avocado oil has shown many health benefits but it has not yet been studied in regards to SNHL. Therefore, we aimed to investigate the efficacy of avocado oil on SNHL in vitro and in vivo and elucidate its mode of action. For the present study, we used enhanced functional avocado oil extract (DKB122). DKB122 led to recovery of otic hair cells in zebrafish after neomycin-induced otic cell damage. Also, DKB122 improved auditory sensory transmission function in a mouse model of noise induced-hearing loss and protected sensory hair cells in the cochlea. In addition, RNA sequencing was performed to elucidate the mechanism involved. KEGG pathway enrichment analysis of differentially expressed genes showed that DKB122 protected House Ear Institute-Organ of Corti 1 (HEI-OC1) cells against neomycin-related alterations in gene expression due to oxidative stress, cytokine production and protein synthesis.
Genes / Markers
Figures
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Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping