Evidence map›Paper›PMID 35668334›Full record

ArticleNeurochemical research2022

Catalpol Exerts Antidepressant-Like Effects by Enhancing Anti-oxidation and Neurotrophy and Inhibiting Neuroinflammation via Activation of HO-1.

Xiaohui Wu, Chen Liu, Junming Wang, Yuechen Guan, Lingling Song, Rongxing Chen, Mingzhu Gong

Abstract read
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In one paragraph

Article in Neurochemical research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 20% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. ERK1/2 activation in anti-inflammatory effects and underlying signaling mechanisms.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Review
  3. Review
  4. Therapeutic potential of COX-2 inhibitors in neuropsychiatric disorders.Journal of neural transmission (Vienna, Austria : 1996) · 2025
    Review
  5. Review
  6. Review
  7. Article
  8. Article
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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

7 authors at 1 institution in 1 country.

Xiaohui WuCollege of Pharmacy, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou, 450046, China.
Chen LiuCollege of Pharmacy, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou, 450046, China.
Junming WangCollege of Pharmacy, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou, 450046, China. mjw98_2010@163.com.
Yuechen GuanCollege of Pharmacy, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou, 450046, China.
Lingling SongCollege of Pharmacy, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou, 450046, China.
Rongxing ChenCollege of Pharmacy, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou, 450046, China.
Mingzhu GongCollege of Pharmacy, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou, 450046, China.
First Affiliated Hospital of Henan University · CN

Funding

Funding Scheme for Yong Key Teachers of Colleges and Universities in Henan Province 2014GGJS-072National Natural Science Foundation of China 81773298Zhongjing High-level Talent Special Fund of Henan University of Chinese Medicine 00104311-2021-1-43
6 · The paper itself

Abstract

Catalpol is an iridoid glycoside with rich content, rich nutrition, and numerous biological activities in Rehmanniae Radix contained in classic antidepressant prescriptions in Chinese clinical medicine. Catalpol has been confirmed previously its exact antidepressant-like effect involved heme oxygenase (HO)-1, but its antidepressant molecular targets and mechanism are still unclear. Here, catalpol's antidepressant-like molecular target was diagnosed and confirmed by ZnPP intervention [the antagonist of HO-1, (10 μg/rat), intracerebroventricular] for the first time, and its molecule mechanism network was determined through HO-1 related pathway and molecules in the hippocampus. Results showed that ZnPP significantly abolished catalpol's (10 mg/kg) reversal on depressive-like behaviors of chronic unpredictable mild stress rats, abolished catalpol's up-regulation on the phosphorylation level of extracellular regulated protein kinases (ERK)1/2 and brain-derived neurotrophic factor (BDNF)'s receptor tropomyosin-related kinase B (TrkB), the nuclear expression level of nuclear factor E 2-related factor 2 (Nrf2), the levels of anti-oxidant factors (such as HO-1, SOD, GPX, GST, GSH) and BDNF, and abolished catalpol's down-regulation on the levels of peroxide and neuroinflammation factors [cyclooxygenase-2 (COX-2), induced nitrogen monoxide synthase (iNOS), nitric oxide (NO)]. Thus, HO-1 could serve as an important potential molecular target for catalpol's antidepressant-like process, and the antidepressant-like mechanism of catalpol could at least involve the activation of HO-1 triggering the up-regulation of the ERK1/2/Nrf2/HO-1 pathway-related factors to enhance the anti-oxidant defense, triggering the down-regulation of the COX-2/iNOS/NO pathway-related factors to inhibit neuroinflammation, and triggering the up-regulation of the BDNF/TrkB pathway to enhance neurotrophy.

Indexed as

Brain-Derived Neurotrophic FactorNF-E2-Related Factor 2AnimalsAntidepressive AgentsAntioxidantsCyclooxygenase 2Heme Oxygenase-1Iridoid GlucosidesNeuroinflammatory DiseasesNitric OxideRatsAntidepressive AgentsAntioxidantsBrain-Derived Neurotrophic FactorcatalpolCyclooxygenase 2Heme Oxygenase-1Iridoid GlucosidesNF-E2-Related Factor 2Nitric OxideAntagonistAnti-inflammatoryAnti-oxidantHeme oxygenase-1Molecular targetsNeurotrophic factor

Identifiers

PMID35668334
OpenAlexW4281705512

What OpenQuestion holds

Textmetadata
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.