Evidence map›Paper›PMID 26541197›Full record

ArticleBMC research notes2015

Evaluation of leishmanicidal activity and cytotoxicity of Ricinus communis and Azadirachta indica extracts from western Kenya: in vitro and in vivo assays.

Bernard N Jumba, Christopher O Anjili, Judith Makwali, Johnstone Ingonga, Rose Nyamao, Sylvia Marango, Joseph K Choge, Christopher Khayeka-Wandabwa

Open access · goldAbstract read
In one paragraph

Article in BMC research notes, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 13% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Antibacterial and Cytotoxic Effects ofInternational journal of dentistry · 2018
    Article
  5. 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

8 authors at 4 institutions in 1 country.

Bernard N JumbaDepartment of Biological Science (Parasitology), University of Eldoret, P.O Box 1125-30100, Eldoret, Kenya. benjumba@yahoo.co.uk.
Christopher O AnjiliCentre for Biotechnology Research and Development (CBRD), Kenya Medical Research Institute (KEMRI), P.O Box 54840-00200, Nairobi, Kenya. canjili@kemri.org.
Judith MakwaliDepartment of Biological Science (Parasitology), University of Eldoret, P.O Box 1125-30100, Eldoret, Kenya. jmakwali@yahoo.com.
Johnstone IngongaCentre for Biotechnology Research and Development (CBRD), Kenya Medical Research Institute (KEMRI), P.O Box 54840-00200, Nairobi, Kenya. jjingonga@yahoo.co.uk.
Rose NyamaoZoology Department, Jomo Kenyatta University of Agriculture and Technology (JKUAT), P.O. Box 62000-00200, Nairobi, Kenya. nyamaorose2010@gmail.com.
Sylvia MarangoDepartment of Biological Science (Parasitology), University of Eldoret, P.O Box 1125-30100, Eldoret, Kenya. marangosylvia@yahoo.com.
Joseph K ChogeUniversity of Kabianga, P.O. Box 2030-20200, Kericho, Kenya. chogekjoseph@gmail.com.
Christopher Khayeka-WandabwaCentre for Biotechnology Research and Development (CBRD), Kenya Medical Research Institute (KEMRI), P.O Box 54840-00200, Nairobi, Kenya. christorwan@gmail.com.
Kenya Medical Research Institute · KEUniversity of Eldoret · KEJomo Kenyatta University of Agriculture and Technology · KEUniversity of Kabianga · KE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDespite advances to targeted leishmanicidal chemotherapy, defies around severe toxicity, recent emergence of resistant variants and absence of rational vaccine still persist. This necessitates search and/or progressive validation of accessible medicinal remedies including plant based. The study examined both in vivo and in vitro response of L. major infection to combined therapy of Ricinus communis and Azadirachta indica extracts in BALB/c mice as the mouse model. A comparative study design was applied.

resultsBALB/c mice, treated with combination therapy resulted in significantly (p < 0.05) larger reduction of lesion than those treated with monotherapies. The spleno-somatic index was found to be significantly low with combination therapy than monotherapies. Antiparasitic effect of A. indica and R. communis on amastigote with a 50 % inhibitory concentration (IC50) was of 11.5 and 16.5 µg mL(-1) respectively while combination therapy gave 9.0 µg ml(-1) compared to the standard drugs, Pentostam and amphotericin B which had an IC50 of 6.5 and 4.5 µg ml(-1) respectively. Optimal efficacy of A. indica and R. communis was 72 and 59.5 % respectively, combination therapy gave 88 %, while Pentostam and amphotericin B had 98 and 92 % respectively against amastigotes. Against promastigotes A. indica and R. Communis gave an IC50 of 10.1, 25.5 µg mL(-1) respectively, while combination, 12.2 µg mL(-1) against 4.1 and 5.0 µg ml(-1) for Pentostam and amphotericin B respectively. The optimal efficacy of the compounds against promastigotes was 78.0, 61.5 and 91.2 % (A. indica, R. communis and A. indica + R. communis respectively) against 96.5 and 98 % for Pentostam and amphotericin B respectively. The concentrations at optimal efficacy were significantly different (p < 0.05) among the test compounds. An evaluation of the IC50 values of the combination therapies clearly reveals synergistic effects.

conclusionCombination therapy of A. indica and R. communis had best antileishmanial activity than the monotherapies. The active ingredients of both R. communis and A. indica need to be fractionated, and studied further for activity against Leishmania parasites.

Indexed as

AnimalsAntiprotozoal AgentsAzadirachtaBody WeightCells, CulturedCell SurvivalChlorocebus aethiopsDrug SynergismDrug Therapy, CombinationFemaleHost-Parasite InteractionsInhibitory Concentration 50Leishmania majorLeishmaniasis, CutaneousMacrophagesMice, Inbred BALB CAntiprotozoal AgentsNitric OxidePlant Extracts

Identifiers

PMID26541197
PMCPMC4635543
OpenAlexW2137488238

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.