Evidence map›Paper›PMID 36436183›Full record

SynthesisInflammopharmacology2023

Hibiscus sabdariffa (Roselle) calyx: a systematic and meta-analytic review of memory-enhancing, anti-neuroinflammatory and antioxidative activities.

Tosin A Olasehinde, Temitope C Ekundayo, Kunle Okaiyeto, Ademola O Olaniran

Abstract readMeta-AnalysisReview
PubMed Publisher
In one paragraph

Synthesis in Inflammopharmacology, 2023. 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. Biochemistry and biophysics reports · 2026
    Article
  2. Article
  3. 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

4 authors.

Tosin A OlasehindeNutrition and Toxicology Division, Food Technology Department, Federal Institute of Industrial Research, Oshodi, Lagos, Nigeria. tosinolasehinde26@yahoo.com.ORCID http://orcid.org/0000-0003-0379-3838
Temitope C EkundayoDepartment of Biotechnology and Food Science, Durban University of Technology, Steve Biko Campus, Durban, South Africa.
Kunle OkaiyetoPhytomedicine and Phytochemistry Group, Department of Biomedical Sciences, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Bellville, 7535, South Africa.
Ademola O OlaniranDiscipline of Microbiology, School of Life Sciences, University of Kwazulu-Natal, Westville, Durban, South Africa.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn this study, we summarized the preclinical investigations of the neuroprotective activities of Hibiscus sabdariffa (HSD) extract via its effect on memory function, neuroinflammation and oxidative damage in the central nervous system, which may help to guide future studies.

methodsPreclinical studies that investigated the effect of HSD extract on memory impairment, neuroinflammation and oxidative stress-induced neuronal damage were searched systematically in PubMed, EBSCOhost (including MEDLINE, CINAHL, APA PsycInfo, etc.), Web of Science (WoS) and Scopus. Parameters and indexes included Morris water maze, passive avoidance test, acetylcholinesterase activity, interleukin 1 (IL-1), tumour necrosis factor-alpha (TNF-α), MAPK, malondialdehyde (MDA), glutathione (GSH), reactive oxygen species (ROS) and mitochondria membrane potential (MMP).

resultsA total of 285 documents were identified; however, only ten articles were included and used for meta-analysis. The meta-analytic outcome revealed that HSD did not show any significant effect on memory function, neuroinflammatory biomarkers (IL-1, MAPK) and oxidative stress (GSH, MDA, ROS and MMP) in neuronal cells and tissues.

conclusionsIndividual study revealed that HSD showed improved memory function, attenuated neuroinflammation and prevented oxidative damage to neurons. However, a conflicting result was observed from the meta-analytic outcomes which showed that HSD has no significant effect on cognitive impairment, neuroinflammation and oxidative stress-induced neuronal damage. However the contradiction in this finding may be associated with small number of studies included. Hence, more studies on the memory-enhacing effects and anti-neuroinflammatory activity of HSD in preclinical and clinical model are required to validate its neuroprotective effect.

Indexed as

HibiscusPoriferaAcetylcholinesteraseAnimalsAntioxidantsGlutathioneNeuroinflammatory DiseasesOxidative StressPlant ExtractsReactive Oxygen SpeciesAcetylcholinesteraseAntioxidantsGlutathionePlant ExtractsReactive Oxygen SpeciesHibiscus sabdariffaMemory functionMeta-analysisNeuroinflammationOxidative stress

Identifiers

What OpenQuestion holds

Textmetadata
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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.