Evidence map›Paper›PMID 35434277›Full record

ArticleAIMS neuroscience2022

Gut neurotoxin p-cresol induces brain-derived neurotrophic factor secretion and increases the expression of neurofilament subunits in PC-12 cells.

Gigi Tevzadze, Tamar Barbakadze, Elisabed Kvergelidze, Elene Zhuravliova, Lali Shanshiashvili, David Mikeladze

Open access · goldAbstract read
In one paragraph

Article in AIMS neuroscience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
0.4field-weighted citation impact, top 39% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. ACS pharmacology & translational science · 2025
    Review
  5. Article
  6. Review of Elevated Para-Cresol in Autism and Possible Impact on Symptoms.International journal of molecular sciences · 2025
    Review
  7. Article
  8. International journal of molecular sciences · 2023
    Article
  9. 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 1 institution in 1 country.

Gigi Tevzadze4-D Research Institute, Ilia State University, 3/5 Cholokashvili av, Tbilisi, 0162, Georgia.
Tamar BarbakadzeSchool of Natural Sciences and Medicine, Institute of Chemical Biology, Ilia State University, 3/5 Cholokashvili ave, Tbilisi, 0162, Georgia.
Elisabed KvergelidzeSchool of Natural Sciences and Medicine, Institute of Chemical Biology, Ilia State University, 3/5 Cholokashvili ave, Tbilisi, 0162, Georgia.
Elene ZhuravliovaSchool of Natural Sciences and Medicine, Institute of Chemical Biology, Ilia State University, 3/5 Cholokashvili ave, Tbilisi, 0162, Georgia.
Lali ShanshiashviliSchool of Natural Sciences and Medicine, Institute of Chemical Biology, Ilia State University, 3/5 Cholokashvili ave, Tbilisi, 0162, Georgia.
David MikeladzeSchool of Natural Sciences and Medicine, Institute of Chemical Biology, Ilia State University, 3/5 Cholokashvili ave, Tbilisi, 0162, Georgia.
Ilia State University · GE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Increased p-cresol levels reportedly alter brain dopamine metabolism and exacerbate neurological disorders in experimental animals. In contrast to toxic concentrations, low doses of p-cresol may have distinct effects on neuronal metabolism. However, the role of p-cresol in synapse remodeling, neurite outgrowth, and other anabolic processes in neurons remains elusive. We propose that low doses of p-cresol affect neuronal cell structural remodeling compared with the high concentration-mediated harmful effects. Thus, the effects of p-cresol on the secretion of brain-derived neurotrophic factor (BDNF) and neurofilament subunit expression were examined using rat pheochromocytoma cells (PC-12 cells). We observed that low doses of p-cresol potentiated nerve growth factor-induced differentiation via secretion of BDNF in cultured PC-12 cells. Opioidergic compounds modulated these p-cresol effects, which were reversed by oxytocin. We propose that this effect of p-cresol has an adaptive and compensatory character and can be attributed to the induction of oxidative stress. Accordingly, we hypothesize that low doses of p-cresol induce mild oxidative stress, stimulating BDNF release by activating redox-sensitive genes. Given that the intestinal microbiome is the primary source of endogenous p-cresol, the balance between gut microbiome strains (especially Clostridium species) and opioidergic compounds may directly influence neuroplasticity.

Indexed as

BDNFmicrobiomeneurofilamentoxytocinp-cresol

Identifiers

PMID35434277
PMCPMC8941194
OpenAlexW4206593777

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.