Evidence map›Paper›PMID 33318864›Full record

ReviewJournal of advanced research2021

Hippocampal ornithine decarboxylase/spermidine pathway mediates H

Xuan Kang, Cheng Li, Yan Xie, Ling-Li He, Fan Xiao, Ke-Bin Zhan, Yi-Yun Tang, Xiang Li, Xiao-Qing Tang

Open access · goldAbstract readReview
In one paragraph

Review in Journal of advanced research, 2021. 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
1.1field-weighted citation impact, top 24% 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, 38 citations in OpenAlex.

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  7. Unveiling cell subpopulations in T1D mouse islets using single-cell RNA sequencing.American journal of physiology. Endocrinology and metabolism · 2024
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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

9 authors at 2 institutions in 1 country.

Xuan KangInstitute of Neurology, The First Affiliated Hospital, University of South China, Hengyang 421001, Hunan, PR China.
Cheng LiDepartment of Emergency Affiliated Nanhua Hospital, University of South China, Hengyang 421001, Hunan, PR China.
Yan XieDepartment of Neurology, The Second Affiliated Hospital, University of South China, Hengyang 421001, Hunan, PR China.
Ling-Li HeDepartment of Neurology, The Second Affiliated Hospital, University of South China, Hengyang 421001, Hunan, PR China.
Fan XiaoInstitute of Neuroscience, Hengyang Medical College, University of South China, Hengyang 421001, Hunan, PR China.
Ke-Bin ZhanDepartment of Neurology, The Second Affiliated Hospital, University of South China, Hengyang 421001, Hunan, PR China.
Yi-Yun TangInstitute of Neuroscience, Hengyang Medical College, University of South China, Hengyang 421001, Hunan, PR China.
Xiang LiDepartment of Anesthesiology, The First Affiliated Hospital, University of South China, Hengyang 421001, Hunan, PR China.
Xiao-Qing TangInstitute of Neurology, The First Affiliated Hospital, University of South China, Hengyang 421001, Hunan, PR China.
University of South China · CNFirst Affiliated Hospital of University of South China · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionWe have previously demonstrated the antagonistic role of hydrogen sulfide (H2S) in the cognitive dysfunction of streptozotocin (STZ)-induced diabetic rats. It has been confirmed that the impaired hippocampal autophagic flux has a key role in the pathogenesis of cognitive impairment and that ornithine decarboxylase (ODC)/spermidine (Spd) pathway plays an important role in the formation of memory by promoting autophagic flux.

objectivesTo investigate the roles of hippocampal ODC/Spd pathway and autophagic flux in H2S-attenuated cognitive impairment in STZ-induced diabetic rats.

methodsCognitive function is judged by the novel objective recognition task (NOR), the Y-maze, and the Morris water maze (MWM) tests. The ODC/Spd pathway in hippocampus was evaluated using the expression of ODC detected by western blot and the level of Spd assayed by GC-MS. Autophagic flux was assessed using the expressions of Beclin-1, LC3II/I, and P62 detected by western blot, and the number of autophagosomes observed by transmission electron microscope.

resultsSodium hydrosulfide (NaHS, a donor of H2S) markedly improved the autophagic flux in the hippocampus of STZ-exposed rats, as evidenced by a decrease in the number of autophagosomes as wells as downregulations in the expressions of LC3-II, Beclin-1, and P62 in the hippocampus of cotreatment with NaHS and STZ rats. NaHS also up-regulated the expression of ODC and the level of Spd in the hippocampus of STZ-induced diabetic rats. Furthermore, inhibited hippocampal ODC/Spd pathway by difluoromethylornithine (DFMO) markedly reversed the protections of NaHS against the hippocampal autophagic flux impairment as well as the cognitive dysfunction in STZ-exposed rats.

conclusionThese findings indicated that improving hippocampal autophagic flux plays a key role in H2S-attenuated cognitive impairment in STZ-induced diabetic rats, as results of up-regulating hippocampal ODC/Spd pathway.

Indexed as

Autophagic fluxCognitive impairmentDiabetesHydrogen sulfideOrnithine decarboxylase/spermidine pathway

Identifiers

PMID33318864
PMCPMC7728590
OpenAlexW3035718504

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.