Evidence map›Paper›PMID 26664369›Full record

ArticleIranian journal of pharmaceutical research : IJPR2015

Development and Evaluation of Thymol Microparticles Using Cellulose Derivatives as Controlled Release Dosage form.

Zahra Zamani, Daryoush Alipour, Hamid Reza Moghimi, Seyed Ali Reza Mortazavi, Mostafa Saffary

Open access · greenAbstract read
In one paragraph

Article in Iranian journal of pharmaceutical research : IJPR, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.4field-weighted citation impact, top 17% 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

17 citing papers in PubMed, 30 citations in OpenAlex.

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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

5 authors at 3 institutions in 1 country.

Zahra ZamaniDepartment of Animal Science, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran.
Daryoush AlipourDepartment of Animal Science, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran.
Hamid Reza MoghimiSchool of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Seyed Ali Reza MortazaviSchool of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Mostafa SaffaryKashan University of Medical Sciences, Kashan, Iran.
Bu-Ali Sina University · IRShahid Beheshti University of Medical Sciences · IRKashan University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Thymol, an important and advantageous component of many essential oils, has been applied as an antimicrobial agent in animals. To increase the duration of action of this compound in ruminants, it was decided here to prepare a controlled release carrier for thymol. Hydroxy propyl methyl cellulose (HPMC) and ethyl cellulose (EC) were used as the matrix polymer here. Mixtures of thymol with eight different ratios of these polymers were then prepared using emulsion solvent evaporation method (F1 to F8). The prepared microparticles were evaluated for production yield, entrapment efficiency, drug content, particle size, drug release behavior, release kinetics (zero order, first order and Fickian matrix diffusion for spheres) and characterized by Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). Mean particle size of microparticles was 1.03 ± 0.02 mm. SEM study revealed that the microparticles were slightly irregular, rough and porous. The formulation with HPMC: EC ratio of 5:1 (F6) showed the highest drug loading (38.8%) and entrapment efficiency (61.2%). This formulation also showed optimum in-vitro drug release. The best fit of release kinetics was achieved with Fickian matrix diffusion for spheres (linear amount released vs t(0.43)). The FTIR spectroscopic and DSC studies show possible interaction between drug and polymers. In this study, thymol was successfully loaded in microparticles prepared from HPMC and EC. These microparticles can be used in further trials to evaluate the effect of slow release thymol on rumen fermentation parameters in ruminants.

Indexed as

Controlled ReleaseEthylcelluloseHydroxypropyl MethylcelluloseMicroparticlesThymol

Identifiers

PMID26664369
PMCPMC4673930
OpenAlexW1771029097

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.