Evidence map›Paper›PMID 24522335›Full record

ArticleInternational journal of legal medicine2014

Molecular pathology of brain matrix metalloproteases, claudin5, and aquaporins in forensic autopsy cases with special regard to methamphetamine intoxication.

Qi Wang, Takaki Ishikawa, Tomomi Michiue, Bao-Li Zhu, Da-Wei Guan, Hitoshi Maeda

Abstract read
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In one paragraph

Article in International journal of legal medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 13% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Article
  6. Forensic neuropathology in the past decade: a scoping literature review.Forensic science, medicine, and pathology · 2024
    Article
  7. Mini Review: Forensic Value of Aquaporines.Frontiers in medicine · 2021
    Review
  8. MMPs in learning and memory and neuropsychiatric disorders.Cellular and molecular life sciences : CMLS · 2019
    Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. 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 2 countries.

Qi WangDepartment of Forensic Medicine, Southern Medical University, No. 1838, Guangzhou, 510515, Guangdong Province, People's Republic of China, wangqi1980@live.com.
Takaki Ishikawa
Tomomi Michiue
Bao-Li Zhu
Da-Wei Guan
Hitoshi Maeda
Osaka City University · JPChina Medical University · CNTottori University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Methamphetamine (METH) is a highly addictive drug of abuse and toxic to the brain. Recent studies indicated that besides direct damage to dopamine and 5-HT terminals, neurotoxicity of METH may also result from its ability to modify the structure of blood-brain barrier (BBB). The present study investigated the postmortem brain mRNA and immunohistochemical expressions of matrix metalloproteases (MMPs), claudin5 (CLDN5), and aquaporins (AQPs) in forensic autopsy cases of carbon monoxide (n = 14), METH (n = 21), and phenobarbital (n = 17) intoxication, compared with mechanical asphyxia (n = 15), brain injury (n = 11), non-brain injury (n = 21), and sharp instrument injury (n = 15) cases. Relative mRNA quantification using Taqman real-time PCR assay demonstrated higher expression of AQP4 and MMP9, lower expression of CLDN5 in METH intoxication cases and lower expression of MMP2 in phenobarbital intoxication cases. Immunostaining results showed substantial interindividual variations in each group, showing no evident differences in distribution or intensity among all the causes of death. These findings suggest that METH may increase BBB permeability by altering CLDN5 and MMP9, and the self-protective system maybe activated to eliminate accumulating water from the extracellular space of the brain by up-regulating AQP4. Systematic analysis of gene expressions using real-time PCR may be a useful procedure in forensic death investigation.

Indexed as

AdolescentAdultAgedAged, 80 and overAquaporin 1Aquaporin 4AsphyxiaBrainBrain InjuriesCarbon Monoxide PoisoningClaudin-5FemaleForensic PathologyForensic ToxicologyHumansHypnotics and SedativesAquaporin 1Aquaporin 4Claudin-5CLDN5 protein, humanHypnotics and SedativesMatrix Metalloproteinase 2Matrix Metalloproteinase 9MethamphetamineNarcoticsPhenobarbitalRNA, Messenger

Identifiers

PMID24522335
OpenAlexW1979955385

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.