Hearing loss is a common cause of disability worldwide, with 30-60% of cases caused by genetic factors. LOXHD1 is a gene essential for essential protein interactions involved in maintaining normal hair cell function. Certain mutations in this gene can cause progressive or non-progressive congenital hearing loss in individuals, called “pathogenic mutations.” Researchers looked deeper into this gene to learn more about the genetic causes of hearing loss in Chinese people, and discovered new variants within this gene to further investigate these causes, in addition to what early intervention and potential drug treatments could mean for people who are susceptible to hearing loss.
The researchers reported their results Otology Journal (https://doi.org/10.26599/JOTO.2026.9540055) April 2026.
157 hearing loss patients and their families participated in this study. 60.51% of affected individuals (95 patients) had potentially causative mutations, with the most frequent being in the SLC26A4 and GJB2 genes. Further analysis shows that LOXHD1 Among the genes, five novel genes are thought to be associated with hearing loss. This information further clarifies the known mutation spectrum. LOXHD1 It points to the gene and its importance in auditory function, and understanding the mechanism of mutation is an important part of uncovering the root causes of hereditary hearing loss.
These mutations have been found to significantly contribute to nonsyndromic hearing loss, a type of inherited hearing loss in which hearing loss is the only symptom.
Genetic mutations can result from different types of mutations that affect proteins, such as misfolding mutations and frameshift mutations, which can lead to substitutions in the amino acid sequence. These substitutions can lead to premature termination of protein translation, a critical step in the sequence of events that creates a functional protein. The stability and performance of these proteins can also be significantly affected if inappropriate amino acids are present.
With this information, genetic screening becomes paramount for early intervention and establishment of treatment options. Two patients received cochlear implants, one at 10 months and the other at 10 years, and were reevaluated 12 months later. Speech-language assessment results demonstrated age-appropriate expressive language development and auditory receptivity for the patient and demonstrated the benefits of genomic sequencing and early intervention for nonsyndromic hearing loss. Genomic sequencing is particularly insightful when cochlear implants are being considered to guide surgical decision-making and postoperative consequences.
The next step is to functionally characterize these novel features. LOXHD1 To understand at the molecular level how the mutant disrupts hearing. ”
Kun Zhang, Researcher, Qilu Hospital, Shandong University, Study Author
Good outcomes for two young patients and momentum for understanding gains LOXHD1 The researchers hope to use the knowledge found in this study to continue their work to establish genetic variations. LOXHD1 gene. Developing accurate genetic tests will lead to personalized interventions for patients with hearing loss, and expanding this research can improve the quality of life for many people around the world.
Mr. Kun Zhang, Mr. Xijian Xin, Mr. Shiqi Huang, Mr. Bo Hou, Mr. Xinbo Xu, Mr. Xiao Han, Mr. Hanbing Zhang of the Department of Otorhinolaryngology, Qilu Hospital of Shandong University and the Key Laboratory of Otorhinolaryngology of NHC of Shandong University, and Mr. Peng Qu of the Dermatology Hospital of Shandong First Medical University and the Shandong Provincial Institute of Dermatology and Venereal Diseases, Shandong Provincial Academy of Medical Sciences contributed to this study.
The Shandong Provincial Natural Science Foundation supported this research.
sauce:
Tsinghua University Press
Reference magazines:
Zhang K. Others. (2026). novel identification LOXHD1 Mutations in Chinese patients with nonsyndromic hearing loss. Journal of Otology. DOI: 10.26599/JOTO.2026.9540055. https://www.sciopen.com/article/10.26599/JOTO.2026.9540055
