Evidence map›Paper›PMID 34926848›Full record

ArticleHeliyon2021

Khat (Catha Edulis Forsk) induced apoptosis and cytotoxicity in cultured cells: A scoping review.

Gamilah Al-Qadhi, Marwan Mansoor Ali Mohammed, Mohammed Al-Ak'hali, Essam Ahmed Al-Moraissi

Open access · goldAbstract readScoping Review
In one paragraph

Article in Heliyon, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 27% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Hepatitis Associated withJournal of clinical medicine · 2025
    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 at 4 institutions in 3 countries.

Gamilah Al-QadhiDepartment of Basic Dental Sciences, Faculty of Dentistry, University of Science and Technology, Yemen.
Marwan Mansoor Ali MohammedDepartment of Oral and Craniofacial Health Sciences, College of Dental Medicine, University of Sharjah, United Arab Emirates.
Mohammed Al-Ak'haliDepartment of Preventive Dental Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia.
Essam Ahmed Al-MoraissiDepartment of Oral and Maxillofacial Surgery, Faculty of Dentistry, Thamar University, Yemen.
Sana'a University · YEThamar University · YEUniversity of Science and Technology · YEUniversity of Sharjah · AE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundKhat (Catha edulis Forsk) leaves are chewed by people in certain regions of East Africa and the Middle East for their stimulating amphetamine-like effects. The purpose of this scoping review is to systematically map the current in vitro publications that investigated the toxicological potential effects of khat on cultured human or animal cells in terms of cellular viability and activity.

methodsA comprehensive electronic database search was undertaken up to December 2020 without starting date or language restrictions in accordance with the PRISMA extension for scoping review guideline and methodological quality evaluation based on the guidelines for reporting pre-clinical in vitro studies on dental materials. All

resultsThe initial search yielded 599 articles and 16 articles were finally selected to be included. The treatment of cells with khat produced different degrees of cellular changes, including decreased cellular survival, induction of apoptosis, increased ROS production, alteration of cell phenotype, and of arrest cell cycle. In this contest, khat-exposed cells expressed higher levels of pro-apoptotic protein Bax and lower levels of anti-apoptotic Bcl-2, up-regulated p38, p53, p16, and p21 proteins, as well as premature expression of differentiation markers.

conclusionBased on the current scoping review, khat induced apoptosis and cytotoxicity in cultured human cells, including oral cells.

Indexed as

ApoptosisCatha edulisCytotoxicityKhat extractReactive oxygen species

Identifiers

PMID34926848
PMCPMC8646973
OpenAlexW3216573674

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.