Evidence map›Paper›PMID 29103183›Full record

ArticleExtremophiles : life under extreme conditions2018

An anti-HBV anthraquinone from aciduric fungus Penicillium sp. OUCMDZ-4736 under low pH stress.

Yanzheng Jin, Shidong Qin, Hai Gao, Guoliang Zhu, Wei Wang, Weiming Zhu, Yi Wang

Abstract read
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Article in Extremophiles : life under extreme conditions, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

15 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Fungal Stress Responses and the Importance of GPCRs.Journal of fungi (Basel, Switzerland) · 2025
    Review
  3. Article
  4. Review
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  7. Article
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  14. Article
  15. Polyketides From the Endophytic FungusFrontiers in chemistry · 2018
    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

7 authors at 2 institutions in 1 country.

Yanzheng JinSchool of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China.
Shidong QinSchool of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China.
Hai GaoSchool of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China.
Guoliang ZhuSchool of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China.
Wei WangSchool of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China.
Weiming ZhuSchool of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China. weimingzhu@ouc.edu.cn.
Yi WangSchool of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China. wangyi0213@ouc.edu.cn.
Qingdao National Laboratory for Marine Science and Technology · CNOcean University of China · CN

Funding

National Natural Science Foundation of China 81373298National Natural Science Foundation of China 81561148012National Natural Science Foundation of China U1501221
6 · The paper itself

Abstract

To obtain new bioactive natural products, the effect of acidic stress on the metabolites of an aciduric fungus was investigated. This fungus, Penicillium sp. OUCMDZ-4736, which was isolated from the sediment around roots of mangrove (Acanthus ilicifolius), produced different compounds and higher yields under pH 2.5 than under neutral conditions. Using spectroscopic analyses and calculations, three new anthraquinone derivatives (1-3) were isolated and identified from the acidic fermentation broth (pH 2.5) of OUCMDZ-4736. Compound 1 showed much stronger anti-hepatitis B virus activity than that of the positive control, lamivudine, strongly inhibiting HBsAg and HBeAg secretion from HepG2.2.15 cells. These results show that extremophiles are a valuable resource of bioactive compounds, and that pH regulation is an effective strategy to induce metabolite production in aciduric fungi.

Indexed as

AnthraquinonesAntiviral AgentsFermentationHepacivirusHep G2 CellsHumansHydrogen-Ion ConcentrationPenicilliumAnthraquinonesAntiviral AgentsAciduric fungiAnti-HBVBioactive natural productsLow pH stress

Identifiers

PMID29103183
OpenAlexW2766953868

What OpenQuestion holds

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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.