Tag Archives: science

Optimal fertilizer application for and effect of soil water on root rot disease and saponin contents

Blind and excessive application of fertilizer was found during the cultivation of Panax notoginseng in field, as well as the increase of root rot disease incidence.

Original Source: Journal of Ginseng Research >>

A UPLC/MS-based metabolomics investigation of the protective effect of ginsenosides Rg1 and Rg2 in mice with Alzheimer’s disease

Alzheimer’s disease (AD) is a progressive brain disease, for which there is no effective drug therapy at present. Ginsenoside Rg1 (G-Rg1) and Ginsenoside Rg2 (G-Rg2) have been reported to alleviate memory deterioration. However, the mechanism of their anti-AD effect hasn’t yet been clearly elucidated.

Original Source: Journal of Ginseng Research >>

Drying characteristics and quality of red ginseng using far-infrared rays

The typical drying methods for red ginseng are sun drying and hot-air drying now. The purpose of this study was to investigate drying characteristics of red ginseng by using far-infrared drying.

Original Source: Journal of Ginseng Research >>

Up-regulation of heme oxygenase-1 by ginsenoside Ro attenuates lipopolysaccharide-induced inflammation in macrophage cells

The beneficial effects of ginsenoside species have been well demonstrated in a number of studies. However, the function of ginsenoside Ro (GRo), an oleanane-type saponin, has not been sufficiently investigated. Thus, the aim of the present study was to investigate the anti-inflammatory effects of GRo in vitro using the Raw 264.7 mouse macrophage cell line treated with lipopolysaccharide (LPS), and to clarify the possible mechanism of GRo involving heme oxygenase-1 (HO-1), which itself plays a critical role in self-defense in the presence of inflammatory stress.

Original Source: Journal of Ginseng Research >>

Inhibitory effects of [Ca] mobilization by total saponin from Korean red ginseng phosphorylation of PKA catalytic subunit and in human platelets

Intracellular Ca2+ ([Ca2+]i) is platelet aggregation-inducing molecule. Therefore, understanding the inhibitory mechanism of [Ca2+]i mobilization is very important to evaluate the antiplatelet effect of a substance. This study was carried out to understand the Ca2+-antagonistic effect of total saponin from Korean red ginseng (KRG-TS).

Original Source: Journal of Ginseng Research >>

Photosynthesis rates, growth and ginsenoside contents of 2-year-old grown at different light transmission rates in a greenhouse

Ginseng is a semi-shade perennial plant cultivated at sloping, sun-shading area in Korea. Recently, due to air-environmental stress and various fungal diseases, greenhouse cultivation has been suggested as an alternative. However, the optimal light transmission rate (LTR) in the greenhouse has not been established.

Original Source: Journal of Ginseng Research >>

Anti-proliferative activity of decoction products in HeLa cells

This study aims to investigate the effect of decoction process on the change of ginsenosides and relation with anti-proliferative effect in HeLa cells.

Original Source: Journal of Ginseng Research >>

Inhibitory mechanism of Korean Red Ginseng on GM-CSF expression in UVB-irradiated keratinocytes

Ultraviolet (UV)-irradiated keratinocytes secrete various proinflammatory cytokines. UV-induced skin damage is mediated by growth factors and proinflammatory cytokines such as granulocyte macrophage colony stimulating factor (GM-CSF). In a previous study, we found that saponin of Korean red ginseng (SKRG) decreased the expression of GM-CSF in UVB-irradiated SP-1 keratinocytes. In this study, we tried to find the inhibitory mechanism of SKRG on UVB-induced GM-CSF expression in SP-1 keratinocytes.

Original Source: Journal of Ginseng Research >>

Effect of Korean Red Ginseng treatment on the gene expression profile of diabetic rat retina

Korean Red Ginseng (KRG) is an herbal medicine used in Asian countries and is very popular for its beneficial biological properties. Diabetes mellitus (DM) and its complications are rapidly becoming a global public health concern. The literature on transcriptional changes induced by KRG in rat models of diabetic retinopathy is limited. Considering these facts, we designed this study to determine whether retinopathy-associated genes are altered in DM rat retinas and whether the induced changes are reversed by KRG.

Original Source: Journal of Ginseng Research >>

Kinetic study for the optimization of ginsenoside Rg3 production by heat treatment of ginsenoside Rb1

Ginsenoside Rg3 is a promising anticancer agent. It is usually produced by heat treating ginseng, in which ginsenoside Rb1 is the major ginsenoside. A kinetic study was conducted to optimize ginsenoside Rg3 production by the heat treatment of ginsenoside Rb1.

Original Source: Journal of Ginseng Research >>