Evidence map›Paper›PMID 37679787›Full record

ArticleJournal of neuroinflammation2023

Supraphysiologic doses of 17β-estradiol aggravate depression-like behaviors in ovariectomized mice possibly via regulating microglial responses and brain glycerophospholipid metabolism.

Ming Li, Jing Zhang, Wendi Chen, Shuang Liu, Xin Liu, Yunna Ning, Yongzhi Cao, Yueran Zhao

Open access · goldAbstract read
In one paragraph

Article in Journal of neuroinflammation, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

17 citing papers in PubMed, 22 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

8 authors at 1 institution in 1 country.

Ming Li *Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China.
Jing Zhang *Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China.
Wendi ChenCenter for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China.
Shuang LiuCenter for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China.
Xin LiuCenter for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China.
Yunna NingCenter for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China.
Yongzhi CaoCenter for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China.
Yueran ZhaoCenter for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China. yrzhao@sdu.edu.cn.
Shandong University · CN

Funding

The National Key Research and Development Program of China 2017YFC1001002
6 · The paper itself

Abstract

background17β-Estradiol (E2) is generally considered neuroprotective in humans. However, the current clinical use of estrogen replacement therapy (ERT) is based on the physiological dose of E2 to treat menopausal syndrome and has limited therapeutic efficacy. The efficacy and potential toxicity of superphysiological doses of ERT for menopausal neurodegeneration are unknown.

methodsIn this study, we investigated the effect of E2 with a supraphysiologic dose (0.5 mg/kg, sE2) on the treatment of menopausal mouse models established by ovariectomy. We performed the open field, Y-maze spontaneous alternation, forced swim tests, and sucrose preference test to investigate behavioral alterations. Subsequently, the status of microglia and neurons was detected by immunohistochemistry, HE staining, and Nissl staining, respectively. Real-time PCR was used to detect neuroinflammatory cytokines in the hippocampus and cerebral cortex. Using mass spectrometry proteomics platform and LC-MS/ MS-based metabolomics platform, proteins and metabolites in brain tissues were extracted and analyzed. BV2 and HT22 cell lines and primary neurons and microglia were used to explore the underlying molecular mechanisms in vitro.

resultssE2 aggravated depression-like behavior in ovariectomized mice, caused microglia response, and increased proinflammatory cytokines in the cerebral cortex and hippocampus, as well as neuronal damage and glycerophospholipid metabolism imbalance. Subsequently, we demonstrated that sE2 induced the pro-inflammatory phenotype of microglia through ERα/NF-κB signaling pathway and downregulated the expression of cannabinoid receptor 1 in neuronal cells, which were important in the pathogenesis of depression.

conclusionThese data suggest that sE2 may be nonhelpful or even detrimental to menopause-related depression, at least partly, by regulating microglial responses and glycerophospholipid metabolism.

Indexed as

DepressionMicrogliaAnimalsBrainCytokinesEstradiolFemaleGlycerophospholipidsHumansMiceCytokinesEstradiolGlycerophospholipids17β-EstradiolDepressionEstrogen replacement therapyGlycerophospholipid metabolismMenopausal syndromeMicroglial

Identifiers

PMID37679787
PMCPMC10485970
OpenAlexW4386526802

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.