Evidence map›Paper›PMID 40522408›Full record

ReviewPsychopharmacology2025

The orexin/hypocretin system in dementia-related neurological disorders: a double-edged sword in cognitive impairment.

Chenyu Zhuang, Yuhan Cao, Jiayu Lu, Yifan Zhou, Yanqing Liu, Yan Li

Abstract readReview
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In one paragraph

Review in Psychopharmacology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–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

3 citing papers in PubMed.

  1. Review
  2. Review
  3. Review
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

6 authors.

Chenyu ZhuangMedical College, Yangzhou University, Yangzhou, 225009, PR China.
Yuhan CaoMedical College, Yangzhou University, Yangzhou, 225009, PR China.
Jiayu LuMedical College, Yangzhou University, Yangzhou, 225009, PR China.
Yifan ZhouMedical College, Yangzhou University, Yangzhou, 225009, PR China.
Yanqing LiuMedical College, Yangzhou University, Yangzhou, 225009, PR China.
Yan LiMedical College, Yangzhou University, Yangzhou, 225009, PR China. liyanzg@yzu.edu.cn.ORCID http://orcid.org/0000-0002-0255-0503

Funding

National Natural Science Foundation of China 82104724Undergraduate Students' Innovation Training Program of Jiangsu Province 202411117052Z
6 · The paper itself

Abstract

rationaleThe orexin (OX) system plays a crucial role in regulating cognitive functions. Dysregulation of this system has been implicated in several dementia-related neurological disorders, including Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD) and dementia with Lewy bodies (DLB).

objectivesThis review aims to synthesize current research on the involvement of the OX system in dementia-related neurological diseases, focusing on its effects on cognitive function and its potential as a therapeutic target.

resultsThe OX system, encompassing hypothalamic neuropeptides and receptors (OX1R and OX2R), exhibits dysregulation in neurodegenerative diseases associated with dementia. Changes in OX concentrations strongly correlate with cognitive decline, and this correlation varies with disease progression. OX regulates essential molecular mechanisms, including neuronal survival, synaptic plasticity, neural network integrity, and circadian rhythm stability-processes impaired as cognitive deficits intensify. These findings emphasize OX's critical and context-dependent role in cellular resilience and cognitive function.

conclusionsOX system emerges as a multifaceted therapeutic target for dementia-related cognitive impairment. Its effects vary across disease stages, initially offering neuroprotection but later contributing to pathology. Moreover, OX's involvement in circadian rhythm regulation complicates its clinical utility, as disruptions exacerbate cognitive deficits. These opposing functions highlight the need for tailored, stage-specific interventions to maximize cognitive benefits while minimizing adverse signaling.

Indexed as

Cognitive DysfunctionDementiaNervous System DiseasesOrexinsAnimalsCognitionFemaleHumansMaleMiceOrexin ReceptorsOrexin ReceptorsOrexinsCognitive dysfunctionNeurodegenerative dementiasOrexin/hypocretin systemSleep-wake cycleTherapeutic targets

Identifiers

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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.