The article presents the results of a pharmacodynamic study of a new gel containing an extract of Aloe vera and an extract of oak bark under the condition of destructive inflammatory periodontal diseases. Pharmacodynamics of the new gel was studied by the following methods: antimicrobial effect - by diffusion method in agar gel (compared product - Metrogyl denta® gel); reparative effect - on the model of linear cut wounds (compared product - Calendula ointment); anti-inflammatory activity - on the model of acute carrageenan-induced inflammation (compared product - Diclofenac natrium gel 5%). It has been established that the antimicrobial activity of the new gel against Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922, Bacillus subtilis ATCC 6633, Pseudomonas aeruginosa ATCC 27853, Candida albicans NCTC 885-653, Escherichia faecalis ATCC 29212, and Staphylococcus mutans ATCC 35668 is slightly lower in comparison with Metrogyl denta® gel exhibiting a powerful antimicrobial activity. According to the reparative effect on the model of linear cut wounds, the new gel exceeded the effectiveness (by 24%, p < 0.001) of the compared drug based on the medicinal plant material - Calendula ointment. A significant anti-inflammatory activity of the new gel has been revealed under the conditions of acute carrageenan inflammation. It exceeded the Diclofenac natrium gel in the first hours of the experiment, indicating an anti-lipoxygenase activity of the new gel. The established antimicrobial, reparative and anti-inflammatory activity of a new gel containing aloe vera and oak bark extracts confirmed its potential use in the treatment of destructive inflammatory periodontal diseases.
- Klíčová slova
- aloe vera extract, destructive-inflammatory periodontal disease, gel, oak bark extract,
- MeSH
- Aloe chemie MeSH
- antiinfekční látky farmakologie MeSH
- dub (rod) chemie MeSH
- gely MeSH
- kůra rostlin chemie MeSH
- lidé MeSH
- mikrobiální testy citlivosti MeSH
- nemoci parodontu * farmakoterapie MeSH
- rostlinné extrakty farmakologie MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- antiinfekční látky MeSH
- gely MeSH
- rostlinné extrakty MeSH
This study presents an innovative multifunctional system in fabricating new functional wound dressing (FWD) products that could be used for skin regeneration, especially in cases of infected chronic wounds and ulcers. The innovation is based on the extraction, characterization, and application of collagen (CO)/chitosan-glucan complex hollow fibers (CSGC)/aloe vera (AV) as a novel FWS. For the first time, specific hollow fibers were extracted with controlled inner (500-900 nm)/outer (2-3 µm) diameters from mycelium of Schizophyllum commune. Further on, research and evaluation of morphology, hydrolytic stability, and swelling characteristics of CO/CSGC@AV were carried out. The obtained FWS showed high hydrolytic stability with enhanced swelling characteristics compared to native collagen. The hemostatic effect of FWS increased significantly in the presence of CSGC, compared to native CO and displayed excellent biocompatibility which was tested by using normal human dermal fibroblast (NHDF). The FWS showed high antibacterial activity against different types of bacteria (positive/negative grams). From in vivo measurements, the novel FWS increased the percentage of wound closure after one week of treatment. All these results imply that the new CO/CSGC@AV-FWD has the potential for clinical skin regeneration and applying for controlled drug release.
- Klíčová slova
- Bactericidal performance, Hemostasis, Hollow fibers, Multifunctional wound dressing,
- MeSH
- Aloe * chemie MeSH
- antibakteriální látky chemie izolace a purifikace farmakologie MeSH
- Bacteria účinky léků růst a vývoj MeSH
- chitosan chemie izolace a purifikace farmakologie MeSH
- fibrilární kolageny chemie izolace a purifikace farmakologie MeSH
- glukany chemie izolace a purifikace farmakologie MeSH
- hojení ran účinky léků MeSH
- kultivované buňky MeSH
- kůže účinky léků zranění patologie MeSH
- lidé MeSH
- modely nemocí na zvířatech MeSH
- mycelium * chemie MeSH
- obvazy * MeSH
- potkani Wistar MeSH
- rány a poranění farmakoterapie patologie MeSH
- rostlinné extrakty chemie izolace a purifikace farmakologie MeSH
- Schizophyllum * chemie MeSH
- zvířata MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- srovnávací studie MeSH
- Názvy látek
- antibakteriální látky MeSH
- chitosan MeSH
- fibrilární kolageny MeSH
- glukany MeSH
- rostlinné extrakty MeSH
Several foods on the market, such as yogurt and fermented milk, include mixtures of prebiotics and probiotic microorganisms effective in promoting the proliferation and equilibrium of intestinal bacteria, thus improving gut health. Particularly, researchers and the public have shown increasing interest in the combination of probiotics with natural substances that promote health or that can act as substrates to promote bacterial growth. The aim of this study is to evaluate the effects of different extracts of Aloe barbadensis and Aloe arborescens in fermented milk, taking into account both the prebiotic effect of aloe polysaccharides and the antimicrobial activity of several secondary metabolites. The results demonstrate a beneficial effect of 5% aloe inner gel on Lactobacillus growth and confirm the antimicrobial activity of the phenolic compounds peculiar of green rind extracts.
- Klíčová slova
- Aloe arborescens Mill, Aloe barbadensis Mill, food health and nutrition, food quality, prebiotics,
- MeSH
- Aloe chemie MeSH
- antiinfekční látky farmakologie MeSH
- epidermis rostlin MeSH
- fenoly farmakologie MeSH
- fermentace MeSH
- kyselina mléčná metabolismus MeSH
- Lactobacillus účinky léků růst a vývoj metabolismus MeSH
- lidé MeSH
- listy rostlin MeSH
- mléko mikrobiologie MeSH
- polysacharidy farmakologie MeSH
- prebiotika * MeSH
- probiotika * MeSH
- zvířata MeSH
- Check Tag
- lidé MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- antiinfekční látky MeSH
- fenoly MeSH
- kyselina mléčná MeSH
- polysacharidy MeSH
- prebiotika * MeSH
Aloe vera is a rich source of many natural-health-promoting substances. The results of contemporary research on animal models indicate that the extracts have an antiinflammatory property. In this work the results of some in vitro experiments are shown: determination of the inhibitory effect of the Aloe vera extracts on the activity of partially purified lipoxygenase from the rat lung cytosol fraction, and quantitative determination of the trace elements presented in the extract (Mn, Fe, Cu, Zn) carried out by using the x-ray fluorescence analysis. The findings could explain the inhibitory effect (antilipoxygenase activity) of the Aloe vera extract in the acute inflammation process, expecially in the topical application for healing of minor burns and skin ulcers.
- MeSH
- Aloe chemie MeSH
- inhibitory lipoxygenas analýza MeSH
- krysa rodu Rattus MeSH
- plíce enzymologie MeSH
- rostlinné extrakty chemie MeSH
- stopové prvky analýza MeSH
- techniky in vitro MeSH
- zvířata MeSH
- Check Tag
- krysa rodu Rattus MeSH
- zvířata MeSH
- Publikační typ
- anglický abstrakt MeSH
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- inhibitory lipoxygenas MeSH
- rostlinné extrakty MeSH
- stopové prvky MeSH
Aloe vera is widely used in food supplements, beverages, pharmaceuticals, and cosmetics. It has been long recognized as an effective natural remedy for its wound-healing properties and its positive influence on other inflammatory skin disorders. Major proteins and mono- and polysaccharides were identified and analysed from Aloe vera commercial extract. Molecular weight of proteins calculated from the sets of molecular weight reference standards, ranged from 70 kDa for the largest to 14 kDa for the smallest ones. IR spectral analysis of the carbohydrate fraction shows that the main carbohydrate copound is acetylated (1 --> 4)-beta-D-mannan substituated with D-galactose and D-glucose. The results have shown that proteins and polysaccharides are a necessary component in the study of biological activity of Aloe vera leaf extract.
- MeSH
- Aloe chemie MeSH
- kůže účinky léků MeSH
- lidé MeSH
- peroxidasa analýza MeSH
- polysacharidy analýza MeSH
- rostlinné extrakty chemie farmakologie MeSH
- rostlinné proteiny analýza MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- anglický abstrakt MeSH
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- peroxidasa MeSH
- polysacharidy MeSH
- rostlinné extrakty MeSH
- rostlinné proteiny MeSH
