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IGF-1

Effects of Insulin-Like Growth Factor (IGF-1) in Patients with Sensorineural Hearing Loss

May 31, 2021

CATEGORY:
Research

SCREENSHOT:
Effects of Insulin-Like Growth Factor (IGF-1) in Patients with Sensorineural Hearing Loss

TITLE:
Effects of Insulin-Like Growth Factor (IGF-1) in Patients with Sensorineural Hearing Loss

CONTENT:
J Int Adv Otol. 2021 May;17(3):207-214. doi: 10.5152/iao.2021.8549.

ABSTRACT

OBJECTIVES: (1) To test the effect of local administration of insulin-like growth factor-1 (IGF-1) in patients with sensorineural hearing loss (SNHL). (2) To test the effect of local administration of IGF-1 in patients with ototoxicity.

METHODS: Forty patients with SNHL were included in the study. Their hearing thresholds at different frequencies (0.5, 1, 2, and 4 kHz) along with the average hearing threshold were noted. The patients were then randomly allocated to 2 groups and were treated with IGF-1 via one of the following routes: (1) intratympanic injection and (2) Gelfoam. Patients were followed-up at weekly intervals for 6 weeks but follow-up PTA was done at 3 weeks, 6 weeks, and 6 months only.

RESULTS: Forty patients (25 male, 15 female) participated in the study. Their age ranged from 13 to 63 years, with a mean of 31.3 years. Nineteen (47.5%) patients exhibited some degree of recovery after 6 months of follow-up, while 21 (52.5%) did not exhibit any recovery. Fourteen (35%) patients showed slight recovery (SR), 1 (4%) patient showed marked recovery, and complete recovery was observed in 4 (10%) patients. Twelve of the 20 patients who underwent treatment using Gelfoam showed improvement in hearing (measured as a reduction in hearing threshold), while only 7 of the 20 patients who underwent intratympanic injection showed such improvement. Among adverse reactions, the most common was pain (88%) which typically did not last beyond 3 days. Other adverse reactions observed were dizziness (24%) and headache (20%). One patient suffered from acute suppurative otitis media (ASOM) and had a perforation in the tympanic membrane. However, this was treated successfully with medications.

CONCLUSION: Intratympanic IGF-1 is a novel drug that has shown early promise in controlling and reversing SNHL.

PMID:34100744 | DOI:10.5152/iao.2021.8549

SOURCE:
The journal of international advanced otology

PUBLISHER:

PMID:
pubmed:34100744

ID:
0b58ea4968e09ff10f4e1238c494f316pubmed:34100744

DOI:
10.5152/iao.2021.8549

DATE – PUBLISHED:
Tue, 08 Jun 2021 06:00:00 -0400

DATE – DOI:
2021-06-04T13:09:30Z

DATE – ADDED:
06/08/21 02:54PM

LINK – PUBMED:
https://pubmed.ncbi.nlm.nih.gov/34100744/

LINK – DOI:
https://doi.org/10.5152/iao.2021.8549

LINK – PUBLISHER:
https://www.advancedotology.org/en/effects-of-insulin-like-growth-factor-igf-1-in-patients-with-sensorineural-hearing-loss-131632?utm_source=hearinglosstreatmentreport.com

IMAGE:

REFERENCE:
Hearing Loss Treatment Report, Urgent Research, 2021-06-08T18:54:02+00:00, https://www.hearinglosstreatmentreport.com.

Insulin-like growth factor 1 (IGF-1): role in the auditory system and therapeutic potential in otology

August 10, 2020

https://journals.lww.com/co-otolaryngology/Abstract/9000/Insulin_like_growth_factor_1__role_in_the_auditory.99119.aspx

https://www.ncbi.nlm.nih.gov/pubmed/32796270?dopt=Abstract

Insulin-like growth factor 1: role in the auditory system and therapeutic potential in otology.

Curr Opin Otolaryngol Head Neck Surg. 2020 Aug 10;:

Authors: Gao L, Nakagawa T

Abstract

PURPOSE OF REVIEW: Insulin-like growth factor 1 (IGF-1) is a hormone necessary for the development, growth, and maintenance of various organs, and has been used as a therapeutic agent in clinical settings. This review aimed to illustrate its role in the auditory systems and its potential use as a therapeutic in the field of otology.

RECENT FINDINGS: Previous animal studies have indicated the critical role of IGF-1 in the development and maintenance of the auditory system, especially in the cochlea. A clinical study demonstrated a close relationship between the serum level of IGF-1 and the progression of age-related hearing impairment, suggesting its importance in the maintenance of hearing in humans. More recently, its effect on the regeneration of cochlear synapses has been reported using explant cultures, which could explain the course of hearing recovery in patients who underwent topical IGF-1 application for the treatment of sudden sensorineural hearing loss.

SUMMARY: Recent advances in experimental and clinical investigations have revealed the importance of IGF-1 in the maintenance of the auditory function. On the basis of broad targets, its clinical application will expand to the field of otology in the future.

PMID: 32796270 [PubMed – as supplied by publisher]

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