Abstract
Skin ensures that a constant internal environment can be maintained in an ever-changing external environment. When a wound occurs on the skin, the inflammatory and proliferative phases are initiated in response to injury. Thai traditional medicine (TTM), using medicinal plants and ancient knowledge, has been used to treat wounds. Eight Thai medicinal plants, most commonly used to treat wounds, were evaluated for their in vitro biological activities such as antioxidation by NBT assay, anti-inflammation by production inhibition of NO, promoting fibroblast cell proliferation, and wound closure activities. Plant materials were extracted with 95% ethanol or distilled water and then concentrated and dried. Statistical analysis of data was done using one-way ANOVA at p value of 0.05. The ethanolic extracts of Garcinia mangostana L., Glycyrrhiza glabra L., and Nigella sativa L. could inhibit the production of superoxide anion with the IC50 values of 13.97 ± 0.38, 28.62 ± 1.91, and 71.54 ± 3.22 μg/ml and nitric oxide with the IC50 values of 23.97 ± 0.91, 46.35 ± 0.43, and 78.48 ± 4.46 μg/ml, respectively. These extracts could promote cell proliferation and accelerate wound recovery at the rate of 2.02 ± 0.03, 2.12 ± 0.03, and 2.65 ± 0.05% per hour, respectively. Three established markers from these three plants were selected according to the selection criteria. Alpha-mangostin, glycyrrhizin, and thymoquinone were found to be the active markers for wound closure activities. The ethanolic extracts of G. mangostana, G. glabra, and N. sativa could scavenge superoxide anion and inhibit the production of nitric oxide; therefore these extracts could assist in surpassing the inflammatory phase and protected the cells surrounding the wound area. Most importantly, these extracts also increased the proliferation and accelerated wound closure, indicating that these plant extracts could be promoting wound healing processes and support the use of TTM.
Highlights
Skin ensures that a constant internal environment can be maintained in an ever-changing external environment
Statistical analysis of data was done using one-way ANOVA at p value of 0.05. e ethanolic extracts of Garcinia mangostana L., Glycyrrhiza glabra L., and Nigella sativa L. could inhibit the production of superoxide anion with the IC50 values of 13.97 ± 0.38, 28.62 ± 1.91, and 71.54 ± 3.22 μg/ml and nitric oxide with the IC50 values of 23.97 ± 0.91, 46.35 ± 0.43, and 78.48 ± 4.46 μg/ml, respectively. ese extracts could promote cell proliferation and accelerate wound recovery at the rate of 2.02 ± 0.03, 2.12 ± 0.03, and 2.65 ± 0.05% per hour, respectively. ree established markers from these three plants were selected according to the selection criteria
Alpha-mangostin, glycyrrhizin, and thymoquinone were found to be the active markers for wound closure activities. e ethanolic extracts of G. mangostana, G. glabra, and N. sativa could scavenge superoxide anion and inhibit the production of nitric oxide; these extracts could assist in surpassing the inflammatory phase and protected the cells surrounding the wound area
Summary
Skin ensures that a constant internal environment can be maintained in an ever-changing external environment. Most commonly used to treat wounds, were evaluated for their in vitro biological activities such as antioxidation by NBT assay, anti-inflammation by production inhibition of NO, promoting fibroblast cell proliferation, and wound closure activities. E ethanolic extracts of G. mangostana, G. glabra, and N. sativa could scavenge superoxide anion and inhibit the production of nitric oxide; these extracts could assist in surpassing the inflammatory phase and protected the cells surrounding the wound area. Most importantly, these extracts increased the proliferation and accelerated wound closure, indicating that these plant extracts could be promoting wound healing processes and support the use of TTM. Protocatechuic acid, and tannins were found in its extract with bioactivities such as anti-inflammatory, antioxidant, and analgesic activities [11, 12]. e pericarp of mangosteen (Garcinia mangostana L.) had traditional use such as wound cleansing liquid on the skin and feet. e major compound of G. mangostana, α-mangostin, had various proven bioactivities such as antioxidant, antibacterial, antifungal, anticancer, and anti-inflammatory activities [13]. e bark of Mimusops elengi
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