Evidence map›Paper›PMID 31900895›Full record

ArticleNeurotoxicity research2020

Protective Effects of Melatonin on Methamphetamine-Induced Blood-Brain Barrier Dysfunction in Rat Model.

Jatuporn Namyen, Kannika Permpoonputtana, Chutikorn Nopparat, Jiraporn Tocharus, Chainarong Tocharus, Piyarat Govitrapong

Abstract read
PubMed Publisher
In one paragraph

Article in Neurotoxicity research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

30 citing papers in PubMed, 50 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Association of Cognitive Impairment and Peripheral Inflammation in Methamphetamine-dependent Patients: A Cross-sectional Study on Neuroinflammatory Markers TNF-α and IL-6.Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology · 2025
    Article
  6. Article
  7. Programmed cell death and melatonin: A comprehensive review.Functional & integrative genomics · 2024
    Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Dysfunction of the Neurovascular Unit by Psychostimulant Drugs.International journal of molecular sciences · 2023
    Review
  14. Review
  15. Article
  16. Role of Microglia in Psychostimulant Addiction.Current neuropharmacology · 2023
    Review
  17. Article
  18. Review
  19. Article
  20. Article
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 at 3 institutions in 1 country.

Jatuporn NamyenResearch Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand.
Kannika PermpoonputtanaNational Institute for Child and Family Development, Mahidol University, Nakhon Pathom, Thailand.
Chutikorn NopparatResearch Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand.
Jiraporn TocharusDepartment of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
Chainarong TocharusDepartment of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
Piyarat GovitrapongResearch Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand. piyarat.gov@mahidol.ac.th.
Mahidol University · THChiang Mai University · THChulabhorn Graduate Institute · TH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The specialized brain endothelial cells interconnected by unique junctions and adhesion molecules are distinctive features of the blood-brain barrier (BBB), maintaining the homeostasis of the cerebral microenvironment. This study was designed to investigate the protective effects of melatonin on methamphetamine (METH)-induced alterations of BBB integrity. Wistar rats were randomly distributed into groups and underwent melatonin pretreatment and escalating-high doses of METH treatment. Immunohistochemistry was performed to demonstrate the BBB leakage. Protein and RNA samples were isolated from hippocampal and prefrontal cortical tissues and measured expression levels of molecular markers associated with BBB structural components and inflammatory processes. METH provoked the loss of zonula occludens (ZO)-1, occludin, and claudin-5 tight junction proteins. Furthermore, METH caused an excessive increase in matrix metalloproteinase-9 (MMP-9) enzyme, intercellular adhesion molecule 1 (ICAM-1), and vascular cell adhesion molecule 1 (VCAM-1) and the increase in NAD(P)H oxidase 2 (NOX2). Melatonin exerted the protective effects by recovering tight junction loss; attenuating excessive MMP-9, NOX2, and cell adhesion molecule expression; and reducing serum albumin in the brain. Our results also showed the protective effects of melatonin against METH neurotoxic profiles, characterized by reactive gliosis: microglia (integrin-αM) and astrocyte (GFAP); an excessive upregulation of primary pro-inflammatory cytokines: interleukin-1β (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α); activation of neuroinflammatory signaling: nuclear factor-kappa B (NF-κB); and suppression of anti-oxidative signaling: nuclear factor erythroid 2-related factor (Nrf2), that may exacerbate BBB structural impairment. Our results provide insights into the beneficial effects of melatonin against METH-induced BBB disruption and mechanisms that play detrimental roles in BBB impairment by in vivo design.

Indexed as

AnimalsBlood-Brain BarrierCell AdhesionHippocampusMaleMelatoninMethamphetamineNeuroprotective AgentsPrefrontal CortexRats, WistarTight JunctionsMelatoninMethamphetamineNeuroprotective AgentsBlood–brain barrierMatrix metalloproteinaseMelatoninMethamphetamineNeuroinflammationTight junctions

Identifiers

PMID31900895
OpenAlexW2997197327

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.