Evidence map›Paper›PMID 36810096›Full record

ArticleBiology of sex differences2023

Sex differences in hearing impairment due to diet-induced obesity in CBA/Ca mice.

Soo Jeong Kim, Akanksha Gajbhiye, Ah-Ra Lyu, Tae Hwan Kim, Sun-Ae Shin, Hyuk Chan Kwon, Yong-Ho Park, Min Jung Park

Open access · goldAbstract read
In one paragraph

Article in Biology of sex differences, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.7field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 18 citations in OpenAlex.

  1. The Gut-Ear Axis: From Dysbiosis to Auditory and Vestibular Disorders.International journal of molecular sciences · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 1 institution in 2 countries.

Soo Jeong Kim *Brain Research Institute, College of Medicine, Chungnam National University, 282 Munwha-ro, Daesa-dong, Jung-gu, 35015, Daejeon, South Korea.
Akanksha Gajbhiye *Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, 35015, South Korea.
Ah-Ra Lyu *Brain Research Institute, College of Medicine, Chungnam National University, 282 Munwha-ro, Daesa-dong, Jung-gu, 35015, Daejeon, South Korea.
Tae Hwan KimDepartment of Medical Science, College of Medicine, Chungnam National University, Daejeon, 35015, South Korea.
Sun-Ae ShinBrain Research Institute, College of Medicine, Chungnam National University, 282 Munwha-ro, Daesa-dong, Jung-gu, 35015, Daejeon, South Korea.
Hyuk Chan KwonDepartment of Medical Science, College of Medicine, Chungnam National University, Daejeon, 35015, South Korea.
Yong-Ho ParkBrain Research Institute, College of Medicine, Chungnam National University, 282 Munwha-ro, Daesa-dong, Jung-gu, 35015, Daejeon, South Korea. parkyh@cnu.ac.kr.
Min Jung ParkBrain Research Institute, College of Medicine, Chungnam National University, 282 Munwha-ro, Daesa-dong, Jung-gu, 35015, Daejeon, South Korea. mjpark@cnu.ac.kr.ORCID 0000-0001-5644-9585
Chungnam National University · KR

Funding

National Research Foundation of Korea 2020R1I1A3052557National Research Foundation of Korea 2021R1A2B5B02001612
6 · The paper itself

Abstract

backgroundObesity is an independent risk factor for hearing loss. Although attention has focused on major obesity comorbidities such as cardiovascular disease, stroke, and type 2 diabetes, the impact of obesity on sensorineural organs, including the auditory system, is unclear. Using a high-fat diet (HFD)-induced obese mouse model, we investigated the impact of diet-induced obesity on sexual dimorphism in metabolic alterations and hearing sensitivity.

methodsMale and female CBA/Ca mice were randomly assigned to three diet groups and fed, from weaning (at 28 days) to 14 weeks of age, a sucrose-matched control diet (10 kcal% fat content diet), or one of two HFDs (45 or 60 kcal% fat content diets). Auditory sensitivity was evaluated based on the auditory brainstem response (ABR), distortion product otoacoustic emission (DPOAE), and ABR wave 1 amplitude at 14 weeks of age, followed by biochemical analyses.

resultsWe found significant sexual dimorphism in HFD-induced metabolic alterations and obesity-related hearing loss. Male mice exhibited greater weight gain, hyperglycemia, increased ABR thresholds at low frequencies, elevated DPOAE, and lower ABR wave 1 amplitude compared to female mice. The hair cell (HC) ribbon synapse (CtBP2) puncta showed significant sex differences. The serum concentration of adiponectin, an otoprotective adipokine, was significantly higher in female than in male mice; cochlear adiponectin levels were elevated by HFD in female but not male mice. Adiponectin receptor 1 (AdipoR1) was widely expressed in the inner ear, and cochlear AdipoR1 protein levels were increased by HFD, in female but not male mice. Stress granules (G3BP1) were significantly induced by the HFD in both sexes; conversely, inflammatory (IL-1β) responses were observed only in the male liver and cochlea, consistent with phenotype HFD-induced obesity.

conclusionsFemale mice are more resistant to the negative effects of an HFD on body weight, metabolism, and hearing. Females showed increased peripheral and intra-cochlear adiponectin and AdipoR1 levels, and HC ribbon synapses. These changes may mediate resistance to HFD-induced hearing loss seen in female mice.

Indexed as

Diabetes Mellitus, Type 2Hearing LossAdiponectinAnimalsDiet, High-FatDNA HelicasesFemaleMaleMiceMice, Inbred CBAObesityPoly-ADP-Ribose Binding ProteinsRNA HelicasesRNA Recognition Motif ProteinsSex CharacteristicsAdiponectinDNA HelicasesPoly-ADP-Ribose Binding ProteinsRNA HelicasesRNA Recognition Motif ProteinsAdiponectin receptor 1Auditory brainstem response (ABR)CtBP2Distortion product otoacoustic emissions (DPOAE)G3BP1Hearing lossHeme oxygenase-1 (HO-1)HFD-induced obesityHSP 32Ribbon synapseSex differencesStress granuleTotal adiponectinWave 1 amplitude

Identifiers

PMID36810096
PMCPMC9945383
OpenAlexW4321611775

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.