Medicinal potential of adventitious root cultures of Hypericum perforatum: study on antioxidant stress and anti-melanogenic properties.

Background: Adventitious root (AR) culture is an effective method for the production of Hypericum perforatum raw materials. However, the ARs are seldom utilized in practical applications. Therefore, this study investigated the effects of H.

Adventitious root culture of Lessertia frutescens for the production of triterpenoid saponins and polysaccharides.

Lessertia frutescens is a perennial shrub of commercial importance in South Africa, but the scarcity of plant resources has limited current product production. In this study, to provide an alternative approach for obtaining L. frutescens material, adventitious roots (ARs) were induced from sterilized seedlings and cultured in a suspension culture system.

Improving Flavonoid Accumulation of Bioreactor-Cultured Adventitious Roots in Using Yeast Extract.

is an endangered medicinal plant, and adventitious root (AR) culture is an effective way to obtain its raw materials. Yeast extract (YE) is a lower-price elicitor and can efficiently promote metabolite synthesis. In this study, the bioreactor-cultured ARs were treated with YE in a suspension culture system to investigate the elicitation effect of YE on flavonoid accumulation, serving for further industrial production.

Optimizing elicitation strategy of salicylic acid for flavonoid and phenolic production of fed-batch cultured Oplopanax elatus adventitious roots.

Oplopanax elatus is a valuable medicinal plant, but its plant resource is lacking. Adventitious root (AR) culture of O. elatus is an effective way for the production of plant materials.

Purification of Polysaccharides from Orostachys cartilaginous Cell Cultures by Macroporous Resin Absorption and Bioactivities of the Purified Polysaccharides.

Orostachys cartilaginous is a traditional herbal medicine and its cell cultures contain large amounts of polysaccharides. To utilize the cultured O. cartilaginous cells, this study purified the crude polysaccharides of O.

Hepatoprotective Effect of Nakai Adventitious Roots Extract by Regulating CYP450 and PPAR Signaling Pathway.

Nakai is a traditional medicine that has been confirmed to exert effective antioxidant and anti-inflammatory functions, and is used for the treatment of different disorders. However, its potential beneficial effects on drug induced hepatotoxicity and relevant molecular mechanisms remain unclear. This study investigated the protective effect and further elucidated the mechanisms of action of on liver protection.

Selection of initial culture medium in fed-batch bioreactor culture of Rhodiola sachalinensis cells.

In fed-batch culture, numerous factors, such as initial culture conditions and feeding strategies, affect the culture efficiency. Among the factors, the effect of initial culture medium is rarely investigated. In this work, Rhodiola sachalinensis cells were cultured in the fed-batch bioreactor system and the effects of volume, medium strength, and sucrose concentration of initial culture medium on biomass and accumulation of salidroside, polysaccharides, flavonoids, and phenolics were investigated.

Extract of Oenothera biennis L. stem inhibits LPS-induced inflammation by regulating MAPK and NF-κB signaling pathways.

Oenothera biennis L. is a perennial herb distributed across America, Asia, and Europe. The pharmacological effect of Oenothera biennis L.

Co-cultured adventitious roots of and inhibit lipopolysaccharide-induced inflammation via MAPK pathway in mouse peritoneal macrophages.

Objective: In order to elucidate the biological activity of the co-cultured adventitious roots (ARs) of and and provide theoretical basis for its application, and the anti-inflammatory activities and potential mechanisms of co-cultured ARs were studied.

Methods: The experimental materials were obtained by bioreactor co-culture technology and used in the activity research. In this study, mouse macrophages induced by lipopolysaccharide (LPS) were used as model.

Ginsenoside metabolite 20(S)-protopanaxatriol from Panax ginseng attenuates inflammation-mediated NLRP3 inflammasome activation.

Ethnopharmacological Relevance: Panax ginseng C.A. Meyer (Araliaceae), has been used in traditional medicine for preventive and therapeutic purposes in Asian countries.

Adventitious root cultures of Oplopanax elatus inhibit LPS-induced inflammation via suppressing MAPK and NF-κB signaling pathways.

Bioreactor-cultured adventitious roots (ARs) of the endangered medicinal plant Oplopanax elatus Nakai is a novel alternative plant material. To utilize ARs in the product production, the present study investigated the anti-inflammatory effect of O. elatus ARs.

Cardamine komarovii flower extract reduces lipopolysaccharide-induced acute lung injury by inhibiting MyD88/TRIF signaling pathways.

In the present study, we investigated anti-inflammatory effect of Cardamine komarovii flower (CKF) on lipopolysaccharide (LPS)-induced acute lung injury (ALI). We determined the effect of CKF methanolic extracts on LPS-induced pro-inflammatory mediators NO and prostaglandin E2 (PGE2), production of pro-inflammatory cytokines (IL-1β, TNF-α, and IL-6), and related protein expression levels of MyD88/TRIF signaling pathways in peritoneal macrophages (PMs). Nuclear translocation of NF-κB-p65 was analyzed by immunofluorescence.

Anti-inflammatory action of Athyrium multidentatum extract suppresses the LPS-induced TLR4 signaling pathway.

Ethnopharmacological Relevance: The aerial part of Athyrium multidentatum (Doll.) Ching (AM) is widely used in the northeastern region of China as an edible wild herb, but its medicinal value, especially its anti-inflammatory effect, has not been fully explored.

Aim Of The Study: To investigate the anti-inflammatory activity of AM and clarify the anti-inflammatory mechanism involving the TLR4 signaling pathway using a lipopolysaccharide (LPS)-induced inflammatory model.

Endophytic Bacteria Isolated from Panax ginseng Improves Ginsenoside Accumulation in Adventitious Ginseng Root Culture.

Ginsenoside is the most important secondary metabolite of ginseng. Natural sources of wild ginseng have been overexploited. Although root culture could reduce the length of the growth cycle of ginseng, the number of ginsenosides is fewer and their contents are lower in adventitious roots of ginseng than that in ginseng cultivated in the field.

[Effect of methyl jasmonate on salidroside and polysaccharide accumulation in Rhodiola sachalinensis callus].

Objective: To provide a new material for producing the Rhodiolasachalinensis products, the effect of methyl jasmonate (MeJA) on callus biomass and effective compound accumulation of Rhodiolasachalinensis was studied.

Method: The calluses-cultured in 3 L-air lift balloon type bioreactor were treated with MeJA after 20 d of bioreactor culture and the effect of MeJA concentration and treatment days on callus biomass, salidroside or polysaccharide accumulation and superoxide dismutase (SOD) and peroxidase (POD) activities were investigated.

Result: The callus biomass was not significantly different after MeJA treatment (125) for 0-6 d but obviously decreased after 6 d treatment.

[Effects of acid and alkali stress on ginsenoside content and histochemical localization of ginsenoside in adventitious root of Panax ginseng].

To investigate the effect of acid and alkali stress on ginsenoside content of Panax ginseng, adventitious roots culture in bioreactors were incubated for 30 d and pH value was adjusted. Ginsenoside content increased by reducing or raising the pH in culture medium, the muxium ginsenoside content was determined on the 5th days after acid treatment and on the 7th days after alkali treatment. The result of histochemical localization of ginsenoside revealed that the red color from light to dark were found in the adventitious root tissue, and ginsenoside mainly located in the pericycle cells where appeared the dark red color.

[Effects of several factors on cell growth and ginsenoside accumulation of Panax ginseng suspension culture].

To improve cell suspension culture system of Panax ginseng, the dynamic of cell growth and medium consumption were studied, and the effects of filter on the culture vessel, revolution number, and inoculation density on cell growth and ginsenoside accumulation were also investigated. The maximum cell growth and ginsenoside accumulation was found on the 20th days of suspension culture, therefore, 20 days were confirmed as a suitable culture period for mass production of ginsenoside. Cell growth and ginsenoside content were promoted when the culture vessel had a ventilated filter.

An improve method for somatic embryogenesis of Schisandra chinensis (Turcz.) Baillon.

A somatic embryogenesis protocol for plant regeneration of Schisandra chinensis (Turcz.) Baillon was established. Increased callus induction was obtained from mature zygotic embryos on Murashige and Skoog (MS) medium supplemented with 1.

[Preliminary study on cultivation of adventitious roots of Hypericum perforatum in bioreactors].

Objective: To cultivate adventitious roots of Hypericum perforatum in bioreactors, in order to seek for suitable conditions for adventitious growth.

Method: The effect of IBA concentration, sugar type and concentration, inoculum volume and air volume of adventitious roots on the cultivation of adventitious roots of H. perforatum was observed in a 5 L air-lift bioreactor.

[Cultivation of protocorms of Dendrobium candidum in air-lift bioreactors].

Objective: To explore the factors affecting the growth of protocorms of Dendrobium candidum and substance synthesis in a reactor, in order to provide a new method for mass production of raw materials of D. candidum.

Method: Protocorms in vitro were used as experimental materials to study the effect of inoculum volume, light intensity and air volume on the growth of protocorms of D.