Evidence map›Paper›PMID 34150016›Full record

ArticleAmerican journal of translational research2021

Comparison of proteolytic, cytotoxic and anticoagulant properties of chromatographically fractionated bromelain to un-fractionated bromelain.

Samina Badar, Mohamed Azarkan, Ahmed H Mekkawy, Javed Akhter, Krishna Pillai, Rachida El Mahyaoui, Kevin Ke, Lauren Cavanaugh, David L Morris

Open access · greenAbstract read
In one paragraph

Article in American journal of translational research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.5field-weighted citation impact, top 38% 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

4 citing papers in PubMed, 6 citations in OpenAlex.

  1. Review
  2. Review
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  4. 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

9 authors at 2 institutions in 1 country.

Samina BadarDepartment of Surgery, University of New South Wales, St. George Hospital Kogarah, NSW, Australia.
Mohamed AzarkanService de Chimie Générale I (CP 609), Protein Chemistry Unit, Faculty of Medicine, Université Libre de Bruxelles (ULB) Brussels, Belgium.
Ahmed H MekkawyDepartment of Surgery, University of New South Wales, St. George Hospital Kogarah, NSW, Australia.
Javed AkhterDepartment of Surgery, University of New South Wales, St. George Hospital Kogarah, NSW, Australia.
Krishna PillaiDepartment of Surgery, University of New South Wales, St. George Hospital Kogarah, NSW, Australia.
Rachida El MahyaouiService de Chimie Générale I (CP 609), Protein Chemistry Unit, Faculty of Medicine, Université Libre de Bruxelles (ULB) Brussels, Belgium.
Kevin KeDepartment of Surgery, University of New South Wales, St. George Hospital Kogarah, NSW, Australia.
Lauren CavanaughHaematology Department, St. George Hospital Kogarah, NSW, Australia.
David L MorrisDepartment of Surgery, University of New South Wales, St. George Hospital Kogarah, NSW, Australia.
St George Hospital · AUUNSW Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bromelain consisting of a number of proteolytic enzymes possess anticancer and thrombotic properties. Hence, four chromatically separated fractions were examined for their proteolytic, anticancer and antithrombotic activity. Bromelain fractions were separated using ion-exchange column chromatography. Proteolytic properties were assessed using standard azocasein assay. Anticancer properties were first assessed using four different cell lines PANC-1, HEP 2B, HEP 3G and OVCAR-3 on cells grown in 96 well plates. Subsequently, fraction 2 and fraction 3 combined with gemcitabine were tested in ASPC-1 cells. Then cytotoxicity of fraction 3 was compared to bromelain in combination with doxorubicin and N-acetylcysteine on HEP G2 and HEP 3B cells. Finally, the anticoagulation effect of fraction 3 or bromelain combined with N-acetylcysteine was evaluated using human blood. Fraction 3 showed the highest proteolytic activity (5% greater than standard bromelain) whilst others were less active. Cytotoxicity as assessed by IC50 indicated fraction 3 to be the most potent whilst the others did not follow their proteolytic potency order. OVCAR-3 was the most sensitive amongst the cell lines. Fraction 3 showed higher potency in combination with gemcitabine in ASPC-1 cells compared to fraction 2. Similarly, fraction 3 in combination with doxorubicin showed higher toxicity when compared to bromelain. Fraction 3 or bromelain only showed thrombolytic activity in combination with N-acetylcysteine. Fraction 3 may be developed for clinical use since it showed better cytotoxicity compared to bromelain.

Indexed as

Bromelaincancercoagulationcytotoxicproteolysis

Identifiers

PMID34150016
PMCPMC8205729
OpenAlexW3176666112

What OpenQuestion holds

Textmetadata
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.