Evidence map›Paper›PMID 32435599›Full record

ArticleToxicology reports2020

Repeated dose (90 days) oral toxicity study of ursolic acid in Han-Wistar rats.

Lotte Geerlofs, Zhiyong He, Sa Xiao, Zhi-Cheng Xiao

Open access · goldAbstract read
In one paragraph

Article in Toxicology reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 16% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 39 citations in OpenAlex.

  1. Pooled it
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  7. Toxicity and safety of rosemary (Rosmarinus officinalis): a comprehensive review.Naunyn-Schmiedeberg's archives of pharmacology · 2025
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  8. Chemical profile ofFrontiers in chemistry · 2025
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  9. Review
  10. International journal of molecular sciences · 2024
    Article
  11. Article
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  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Acute and repeated-dose toxicity ofToxicology reports · 2021
    Article
  19. Terpenoids as Potential Geroprotectors.Antioxidants (Basel, Switzerland) · 2020
    Review
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 1 institution in 1 country.

Lotte GeerlofsDepartment of Anatomy and Developmental Biology, Monash University, Melbourne, 3168, Australia.
Zhiyong HeDepartment of Anatomy and Developmental Biology, Monash University, Melbourne, 3168, Australia.
Sa XiaoDepartment of Anatomy and Developmental Biology, Monash University, Melbourne, 3168, Australia.
Zhi-Cheng XiaoDepartment of Anatomy and Developmental Biology, Monash University, Melbourne, 3168, Australia.
Monash University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundUrsolic acid (UA) has been used in alternative medicine for decades, and there has been a great interest in its medicinal properties. Despite this increased interest, a detailed long-term toxicity study has not been performed. The objective of this study was to determine the long-term toxic effect of UA on clinical chemistry, haematology, coagulation, pathology/morphology, behaviour and motor skills in rats.

methodsA solution was made by dissolving UA in a mixture of 0.1% Tween 80 and 0.5% hydroxypropyl methylcellulose in Milli-Q Water. The control group received the vehicle, and the test groups received a dose up to 1000 mg/kg/day via oral gavage. The solution was administered to both male and female (Han-Wistar) rats for 90 consecutive days.

resultsUA did not cause any deaths, abnormal body weights or abnormal pathology at all test doses. In addition to that, no toxicological changes were observed in behaviour, neurotoxicity, coagulation, haematology or clinical chemistry that are related to the administration of UA.

conclusionThis study indicates that oral dosing of UA for 90 consecutive days does not lead to toxic effects at any of the doses. Therefore, the NOAEL for UA is likely to be higher than 1000 mg/kg/day.

Indexed as

90 daysA/G, Albumin/globulin ratioALB, AlbuminALP, Alkaline phosphataseALT, Alanine aminotransferaseAPTT, Activated partial thromboplastin timeAST, Aspartate aminotransferaseBASO, BasophilsCA, CalciumCHOL, CholesterolCK, Creatine kinaseCL, ChlorideCREAT, CreatineEOS, EosinophilsFIB, FibrogenGGT, Gamma-glutamyl transferaseGLOB, GlobulinGLUC, GlucoseHGB, HaemoglobinHPLC, High Performance Liquid ChromatographyHPMC, Hydroxypropyl methylcelluloseK, PotassiumLUC, Large unstained cells percentLYMPH, LymphocytesMCHC, Mean corpuscular haemoglobin concentrationMCH, Mean corpuscular haemoglobinMCV, Mean corpuscular volumeMONO, Monocytes percentNA, SodiumNEUT, Neutrophils percentNOEL, No observed effect levelNo observed adverse effect levelN.V.L, No visible lesionsOA, Oleanonic acidOECDOECD, Organisation for Economic Co-operation and DevelopmentPHOS, Inorganic phosphatePLT, Platelet countPT, Prothrombin timeRBC, Red blood cell countRDWG, Red blood cell distribution width gatedRepeated dose toxicityRETIC, ReticulocytesTBIL, Total bilirubinTPROT, Total proteinTRIG, TriglyceridesUA, Ursolic acidUrsolic acidWBC, White blood cell count

Identifiers

PMID32435599
PMCPMC7229404
OpenAlexW3022951394

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.