Evidence map›Paper›PMID 31272429›Full record

ArticleBMC complementary and alternative medicine2019

Pharmacokinetics of cucurbitacin B from Trichosanthes cucumerina L. in rats.

Natthaphon Hunsakunachai, Nitra Nuengchamnong, Weena Jiratchariyakul, Tanawan Kummalue, Phisit Khemawoot

Open access · goldAbstract readValidation Study
In one paragraph

Article in BMC complementary and alternative medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.8field-weighted citation impact, top 7% 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

16 citing papers in PubMed, 34 citations in OpenAlex.

  1. Review
  2. Pharmacokinetic Profile of Extracts from the Chayote (Molecules (Basel, Switzerland) · 2025
    Article
  3. Article
  4. Review
  5. Phytochemicals Target Multiple Metabolic Pathways in Cancer.Antioxidants (Basel, Switzerland) · 2023
    Review
  6. Review
  7. Review
  8. Pharmacokinetics and Biological Activity of Cucurbitacins.Pharmaceuticals (Basel, Switzerland) · 2022
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Use of cucurbitacins for lung cancer research and therapy.Cancer chemotherapy and pharmacology · 2021
    Review
  15. Review
  16. Targeting Cancer Metabolism and Current Anti-Cancer Drugs.Advances in experimental medicine and biology · 2021
    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

5 authors at 4 institutions in 1 country.

Natthaphon HunsakunachaiDepartment of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Pathumwan, Bangkok, Thailand.
Nitra NuengchamnongScience Laboratory Centre, Faculty of Science, Naresuan University, Tha Pho, Phitsanulok, Thailand.
Weena JiratchariyakulDepartment of Pharmacognosy, Faculty of Pharmacy, Mahidol University, Thung Phayathai, Ratchathewi, Bangkok, Thailand.
Tanawan KummalueDepartment of Clinical Pathology, Faculty of Medicine Siriraj Hospital, Bangkok Noi, Bangkok, Thailand.
Phisit KhemawootDepartment of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Pathumwan, Bangkok, Thailand. phisit.k@chula.ac.th.ORCID http://orcid.org/0000-0001-7994-4503
Chulalongkorn University · THMahidol University · THNaresuan University · THSiriraj Hospital · TH

Funding

100th Anniversary Chulalongkorn University fund for doctoral scholarship N/AAgricultural Research Development Agency (CRP 5905020040)Ratchadapiseksomphot Endowment fund of Chulalongkorn University (CU-GR_60_10_33_04)
6 · The paper itself

Abstract

backgroundCucurbitacin B is the major bioactive constituent in Trichosanthes cucumerina L. fruits, which the pharmacological properties have been studied for decades particularly an anti-tumor activity. The pharmacokinetic profile of this compound is still limited and investigation is needed for further phytopharmaceutical product development. This study aimed to investigate the pharmacokinetic profile of cucurbitacin B after administering the compound at different doses and routes to rats.

methodsMale Wistar rats (n = 6) were treated by cucurbitacin B extracted from Trichosanthes cucumerina L. The cucurbitacin B was administered at 0.1 mg/kg intravenously or by oral gavage at 2-4 mg/kg. Blood samples and internal organs were collected serially within 24 h after administration. Urine and feces were collected from time 0 to 48 h. The level of cucurbitacin B in biological samples was determined by liquid chromatography-tandem mass spectrometry.

resultsThe absolute oral bioavailability of cucurbitacin B was approximately 10%. The maximum concentration in plasma after normalization by dose ranged from 4.85-7.81 μg/L and the time to reach maximum value was approximately within 30 min after oral dosing. The level of cucurbitacin B in plasma increased proportionally to the given dose. After intravenous administration, cucurbitacin B had a large volume of distribution of about 51.65 L/kg and exhibited a high tissue to plasma concentration ratio, approximately 60 to 280-fold in several organs. Negligible amount of unchanged cucurbitacin B could be detected in urine and feces and accounted less than 1% of administered dose.

conclusionCucurbitacin B had low oral bioavailability, but could be distributed extensively into internal organs with a high volume of distribution and tissue to plasma ratio. Only negligible amounts of unchanged cucurbitacin B were excreted via urine and feces suggesting that the compound might be biotransformed before undergoing an excretion. Further studies of the metabolic pathway and tissue uptake mechanism are required to strategize the future development of cucurbitacin B into clinical studies.

Indexed as

AnimalsMaleRats, WistarTissue DistributionTrichosanthesTriterpenescucurbitacin BTriterpenesCucurbitaceaeCucurbitacin BPharmacokineticsTrichosanthes cucumerina

Identifiers

PMID31272429
PMCPMC6609384
OpenAlexW2953426828

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.