Evidence map›Paper›PMID 34332546›Full record

ArticleCellular & molecular biology letters2021

β-acetoxyisovaleryl alkannin (AAN-II) from Alkanna tinctoria promotes the healing of pressure-induced venous ulcers in a rabbit model through the activation of TGF-β/Smad3 signaling.

Xiao Yang, Weijing Fan, Renyan Huang, Guobin Liu

Open access · goldAbstract readLetter
In one paragraph

Article in Cellular & molecular biology letters, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
3.4field-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

9 citing papers in PubMed, 14 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Mechanism of action of montmorillonite powder on injury and repair factors in Stage II pressure ulcers in model mice.Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI) · 2024
    Article
  5. Article
  6. Targeting Signalling Pathways in Chronic Wound Healing.International journal of molecular sciences · 2023
    Review
  7. Review
  8. Article
  9. 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 2 institutions in 1 country.

Xiao Yang *Peripheral Vascular Disease Unit of the TCM Department, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, 201203, Shanghai, China.
Weijing Fan *Peripheral Vascular Disease Unit of the TCM Department, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, 201203, Shanghai, China.
Renyan HuangPeripheral Vascular Disease Unit of the TCM Department, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, 201203, Shanghai, China.
Guobin LiuPeripheral Vascular Disease Unit of the TCM Department, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, 201203, Shanghai, China. 15800885533@163.com.
Shanghai University of Traditional Chinese Medicine · CNShuguang Hospital · CN

Funding

National Natural Science Foundation of China 81774310National Natural Science Foundation of China 81804095
6 · The paper itself

Abstract

Alkannin-based pharmaceutical formulations for improving wound healing have been on the market for several years. However, detailed molecular mechanisms of their action have yet to be elucidated. Here, we investigated the potential roles of AAN-II in improving the healing of pressure-induced venous ulcers using a rabbit model generated by combining deep vein thrombosis with a local skin defect/local skin defect. The extent of healing was evaluated using hematoxylin and eosin (HE) or vimentin staining. Rabbit skin fibroblasts were cultured for AAN-II treatment or TGFB1-sgRNA lentivirus transfection. ELISA was used to evaluate the levels of various cytokines, including IL-1β, IL-4, IL-6, TNF-α, VEGF, bFGF, TGF-β and PDGF. The protein levels of TGF-β sensors, including TGF-β, Smad7 and phosphor-Smad3, and total Smad3, were assayed via western blotting after TGF-β knockout or AAN-II treatment. The results show that, for this model, AAN-II facilitates ulcer healing by suppressing the development of inflammation and promoting fibroblast proliferation and secretion of proangiogenic factors. AAN-II enhances the activation of the TGF-β1-Smad3 signaling pathway during skin ulcer healing. In addition, the results demonstrate that AAN-II and TGF-β have synergistic effects on ulcer healing. Our findings indicate that AAN-II can promote healing of pressure-induced venous skin ulcers via activation of TGF-β-Smad3 signaling in fibroblast cells and provide evidence that could be used in the development of more effective treatments.

Indexed as

AnimalsBoraginaceaeDisease Models, AnimalFemaleNaphthoquinonesPressureRabbitsSignal TransductionSmad3 ProteinTransforming Growth Factor beta1Varicose UlcerWound HealingalkanninNaphthoquinonesSmad3 ProteinTransforming Growth Factor beta1AAN-IIInflammationSkin ulcerTGF-β1/Smad3 signalingTissue repair

Identifiers

PMID34332546
PMCPMC8325215
OpenAlexW3187201441

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.