Evidence map›Paper›PMID 30386230›Full record

ArticleFrontiers in aging neuroscience2018

Smaller Hippocampal Volume and Degraded Peripheral Hearing Among Japanese Community Dwellers.

Yasue Uchida, Yukiko Nishita, Takashi Kato, Kaori Iwata, Saiko Sugiura, Hirokazu Suzuki, Michihiko Sone, Chikako Tange, Rei Otsuka, Fujiko Ando and 2 more

Abstract read
In one paragraph

Article in Frontiers in aging neuroscience, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

25 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  8. Longitudinal relationships between daily activity and hippocampal atrophy in Japanese dwellers.The journals of gerontology. Series A, Biological sciences and medical sciences · 2025
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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

12 authors.

Yasue UchidaDepartment of Otolaryngology, Aichi Medical University, Nagakute, Japan.
Yukiko NishitaSection of NILS-LSA, National Center for Geriatrics and Gerontology, Obu, Japan.
Takashi KatoDepartment of Clinical and Experimental Neuroimaging, National Center for Geriatrics and Gerontology, Obu, Japan.
Kaori IwataDepartment of Clinical and Experimental Neuroimaging, National Center for Geriatrics and Gerontology, Obu, Japan.
Saiko SugiuraDepartment of Otorhinolaryngology, National Center for Geriatrics and Gerontology, Obu, Japan.
Hirokazu SuzukiDepartment of Otorhinolaryngology, National Center for Geriatrics and Gerontology, Obu, Japan.
Michihiko SoneDepartment of Otorhinolaryngology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Chikako TangeSection of NILS-LSA, National Center for Geriatrics and Gerontology, Obu, Japan.
Rei OtsukaSection of NILS-LSA, National Center for Geriatrics and Gerontology, Obu, Japan.
Fujiko AndoSection of NILS-LSA, National Center for Geriatrics and Gerontology, Obu, Japan.
Hiroshi ShimokataSection of NILS-LSA, National Center for Geriatrics and Gerontology, Obu, Japan.
Akinori NakamuraDepartment of Clinical and Experimental Neuroimaging, National Center for Geriatrics and Gerontology, Obu, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A growing body of literature has demonstrated that dementia and hearing loss are interrelated. Recent interest in dementia research has expanded to brain imaging analyses with auditory function. The aim of this study was to investigate the link between hearing ability, which was assessed using pure-tone audiometry, and the volume of brain regions, specifically the hippocampus, entorhinal cortex, Heschl's gyrus, and total gray matter, using Freesurfer software and T1-weighted brain magnetic resonance imaging. The data for 2082 samples (age range = 40-89 years) were extracted from a population-based cohort of community dwellers. Hearing-impaired individuals showed significantly smaller hippocampal volumes compared with their non-hearing-impaired counterparts for all auditory frequency ranges. In addition, a correlational analysis showed a significant dose-response relationship for hearing ability and hippocampal volume after adjusting for potential confounding factors so that the more degraded the peripheral hearing was, the smaller the hippocampal volume was. This association was consistent through the auditory frequency range. The volume of the entorhinal cortex, right Heschl's gyrus and total gray matter did not correlate with hearing level at any frequency. The volume of the left Heschl's gyrus showed a significant relationship with the hearing levels for some auditory frequencies. The current results suggested that the presence of hearing loss after middle age could be a modifier of hippocampal atrophy.

Indexed as

Freesurfergray matterhearingHeschl’s gyrushippocampus

Identifiers

PMID30386230
PMCPMC6198789

What OpenQuestion holds

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Registered trials

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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.