Evidence map›Paper›PMID 30845368›Full record

ArticleAging cell2019

Hormone replacement therapy attenuates hearing loss: Mechanisms involving estrogen and the IGF-1 pathway.

Tanika T Williamson, Bo Ding, Xiaoxia Zhu, Robert D Frisina

Open access · goldAbstract read
In one paragraph

Article in Aging cell, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
3.5field-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

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 54 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Tanika T WilliamsonDepartments of Chemical & Biomedical and Medical Engineering, Global Center for Hearing & Speech Research, University of South Florida, Tampa, Florida.
Bo DingDepartments of Communication Sciences & Disorders, Global Center for Hearing & Speech Research, University of South Florida, Tampa, Florida.
Xiaoxia ZhuDepartments of Chemical & Biomedical and Medical Engineering, Global Center for Hearing & Speech Research, University of South Florida, Tampa, Florida.
Robert D FrisinaDepartments of Chemical & Biomedical and Medical Engineering, Global Center for Hearing & Speech Research, University of South Florida, Tampa, Florida.ORCID 0000-0002-7423-6257
University of South Florida · US

Funding

Structure and Function Services CoreP01AG009524 · NIA · UNIVERSITY OF SOUTH FLORIDA · PI FRISINA, ROBERT D · 1992 to 2021
$23.2M
Elucidation of Under-Investigated Biological Mechanisms of Age-Related Hearing LossR21DC017039 · NIDCD · UNIVERSITY OF SOUTH FLORIDA · PI FRISINA, ROBERT D · 2019 to 2020
$411k
NIA NIH HHS P01 AG009524NIDCD NIH HHS R21 DC017039
6 · The paper itself

Abstract

Estradiol (E) is a multitasking hormone that plays a prominent role in the reproductive system, and also contributes to physiological and growth mechanisms throughout the body. Frisina and colleagues have previously demonstrated the beneficial effects of this hormone, with E-treated subjects maintaining low auditory brainstem response (ABR) thresholds relative to control subjects (Proceedings of the National Academy of Sciences of the United States of America, 2006;103:14246; Hearing Research, 2009;252:29). In the present study, we evaluated the functionality of the peripheral and central auditory systems in female CBA/CaJ middle-aged mice during and after long-term hormone replacement therapy (HRT) via electrophysiological and molecular techniques. Surprisingly, there are very few investigations about the side effects of HRT in the auditory system after it has been discontinued. Our results show that the long-term effects of HRT are permanent on ABR thresholds and ABR gap-in-noise (GIN) amplitude levels. E-treated animals had lower thresholds and higher amplitude values compared to other hormone treatment subject groups. Interestingly, progesterone (P)-treated animals had ABR thresholds that increased but amplitude levels that remained relatively the same throughout treatment. These results were consistent with qPCR experiments that displayed high levels of IGF-1R in the stria vascularis (SV) of both E and P animal groups compared to combination treatment (E + P) animals. IGF-1R plays a vital role in mediating anti-apoptotic responses via the PI3K/AKT pathway. Overall, our findings gain insights into the neuro-protective properties of E hormone treatments as well as expand the scientific knowledge base to help women decide whether HRT is the right choice for them.

Indexed as

Hormone Replacement TherapyAnimalsCells, CulturedEstradiolEstrogensFemaleHearing LossInsulin-Like Growth Factor IMaleMiceMice, Inbred CBAEstradiolEstrogensInsulin-Like Growth Factor Iage-related hearing lossagingauditory systemhormone replacement therapyHRTneurodegeneration

Identifiers

PMID30845368
PMCPMC6516159
OpenAlexW2921265561

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.