Evidence map›Paper›PMID 30648572›Full record

ArticleJournal of food and drug analysis2019

Catechin rich butanol fraction extracted from Acacia catechu L. (a thirst quencher) exhibits immunostimulatory potential.

M A Sunil, V S Sunitha, A Ashitha, Sahadevan Neethu, Sebastian J Midhun, E K Radhakrishnan, Mathew Jyothis

Open access · hybridAbstract read
In one paragraph

Article in Journal of food and drug analysis, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 21% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
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  7. Role ofMicroorganisms · 2019
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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 1 institution in 1 country.

M A SunilSchool of Biosciences, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, 686560, Kerala, India.
V S SunithaSchool of Biosciences, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, 686560, Kerala, India.
A AshithaSchool of Biosciences, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, 686560, Kerala, India.
Sahadevan NeethuSchool of Biosciences, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, 686560, Kerala, India.
Sebastian J MidhunSchool of Biosciences, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, 686560, Kerala, India.
E K RadhakrishnanSchool of Biosciences, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, 686560, Kerala, India.
Mathew JyothisSchool of Biosciences, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, 686560, Kerala, India.
Mahatma Gandhi University · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Acacia catechu L., (Fabaceae) named as "catechu" is a plant, the decoction of heartwood of which is daily consumed as thirst quencher by a good percentage of the population in South India. The plant is mainly distributed in India and other Asian countries. It has been used in Indian traditional medicine for the treatment of asthma, bronchitis, colic, diarrhea, boils, skin afflictions, sores and stomatitis. The present investigation was aimed to study the immunomodulatory effects of different fractions of ethanol extract of A. catechu heartwood and HPLC analysis of the active fraction. Three fractions namely, butanol, chloroform and ethyl acetate were prepared from ethanol extract of A. catechu heartwood. Each of these fractions was assessed for its immunomodulatory activity. In vivo immunomodulatory activity was analyzed by sheep red blood cells (SRBC) specific hemagglutinating antibody titer, plaque-forming cell assay and delayed type hypersensitivity (DTH) reaction in Swiss albino mice. In vitro immunomodulating potential of the fractions was studied using murine peritoneal macrophages and splenocytes. Non-specific immune functions such as phagocytosis (nitroblue tetrazolium reduction assay and cellular lysosomal enzyme assay), nitric oxide (NO) production and cytokine release (TNF-α and IL-10) were studied in macrophages. In addition, splenocyte proliferation was also studied. In the in vivo experiments, butanol and chloroform fractions showed an increase in antibody titer dose-dependently. At higher dose (400 mg/kg b. w.) treatment the butanol fraction produced an enhancement in the number of plaque-forming cells (antibody producing cells) in the spleen. SRBC induced DTH reaction was significantly increased with butanol fraction in a dose-dependent manner. Peritoneal macrophages showed an increased phagocytic response on treatment with butanol fraction (100 μg/mL) as evidenced by its effect on nitroblue tetrazolium reduction and cellular lysosomal enzyme activity. All three fractions inhibited the production of NO and the release of TNF-α. Interleukin-10 production was significantly increased after treatment with butanol fraction. High-performance liquid chromatography analysis of the butanol fraction showed the presence of high concentration of catechin. The results suggested that butanol fraction of ethanol extract of A. catechu heartwood had immunomodulatory effects on non-specific, humoral, and cell-mediated immune functions. This study may be useful in validating the rationality of daily consumption of decoction of A. catechu and also its use in traditional medicine system. The study also suggests the possible use of A. catechu in the immunostimulatory herbal preparations.

Indexed as

AcaciaAnimalsCatechinErythrocytesImmunologic FactorsInterleukin-10MacrophagesMiceNitric OxidePhagocytosisPlant ExtractsSheepCatechinImmunologic FactorsInterleukin-10Nitric OxidePlant ExtractsAcacia catechu L.DTHIL-10ImmunomodulatoryTNF-α

Identifiers

PMID30648572
PMCPMC9298633
OpenAlexW2810286688

What OpenQuestion holds

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LicenceCC BY-NC-ND
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.