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임혜선,오세량,Ho-Jae Lee,Young-Won Chin,Kyung-Seop Ahn,Dai-Eun Sok,Hyeong-Kyu Lee 한국응용생명화학회 2009 Applied Biological Chemistry (Appl Biol Chem) Vol.52 No.6
Bioactivity-guided fractionation of Anthricus sylvestris extract, using matrix metalloproteinase-9 (MMP-9) assay, led to the isolation of deoxypodophyllotoxin (1), falcarindiol (2), (-)-hinokinin (3), and (-)-hibalactone (4). All compounds obtained were evaluated for the inhibitory activities against MMP-9 in luciferase and zymographic assays. Of these compounds, compounds 1 (IC50 0.5 nM) and 2 (IC50 8.4 µM) were found to inhibit MMP-9 expression in the PGL4.14-MMP-9-Luc plasmid transfected Raw 264.7 cells, and MMP-9 production in a gelatin zymographic assay.
황납추출물이 도파민세포 보호효과 및 파킨슨병 행동장애에 미치는 영향
임혜선,문병철,박건혁,Lim, Hye-Sun,Moon, Byeong Cheol,Park, Gunhyuk 한국환경과학회 2022 한국환경과학회지 Vol.31 No.5
Parkinson's Disease (PD) is a chronic neurodegenerative disorder caused by the progressive loss of dopaminergic neurons, leading to decreased dopamine levels in the midbrain. Although the specific etiology of PD is not yet known, oxidative stress, inflammation, and subsequent apoptosis have been proposed to be closely related to PD pathophysiology. Cera Flava (CF) is a natural extract obtained from beehives and is isolated through the heating, compression, filtration, and purification of beehives. CF has been used in traditional medicines for its various clinical and pharmacological effects. However, its effects on neurodegenerative diseases are unknown. Therefore, we investigated the effects of CF against 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced PD in mice and explored the underlying mechanism of action. In MPTP-induced PC12 cells, CF protected NADH dehydrogenase activity and inhibited lactate dehydrogenase. In the mouse model, CF promoted recovery from movement impairments, prevented dopamine depletion, and protected against MPTP-induced dopaminergic neuronal degradation. Moreover, CF downregulated glial and microglial activation. Taken together, our results suggest that CF improves behavioral impairments and protects against dopamine depletion in MPTP-induced toxicity by inhibiting glial and microglial activation.
임혜선,하혜경,서창섭,진성은,김예지,전우영,유새롬,신인식,김정훈,김성실,신나라,이미 대한본초학회 2012 大韓本草學會誌 Vol.27 No.6
Objectives: This study evaluated activities and ingredient contents concerning extracts according to extraction solvents of Insampaedok-san (IS, Renshen bai du-san), Methods: The herbal constituents of IS were extracted with water and 70% ethanol at 100°C for 2 hr. Using the HPLC system, the six ingredient contents of different solvent extracts of IS were analyzed. The nitric oxide (NO), prostaglandin E2 (PGE2) production and proinflammatory cytokines were measured in RAW264.7 cells stimulated with lipopolysaccharide (LPS). The macrophage-derived chemokine (MDC/CCL22) and regulated on activation normal T-cell expression and secreted (RANTES/CCL5) production were measured in HaCaT and BEAS-2B cells stimulated tumor necrosis factor-α (TNF-α) and interferon-γ (IFN-γ). The activities of glycerol-3-phosphate dehydrogenase (GPDH) and leptin level were measured in 3T3-L1 cells. Results: The calibration curves showed good linearity (r2=1.0000) for different concentration ranges. The contents of liquiritin, naringin, hesperidin, neohesperirin and glycyrrizin in 70% ethanol extracts of IS were relatively higher than that of water extract, however the content of ferulic acid in 70% ethanol and water extract of IS were similar. The extraction solvents of water and 70% ethanol were evaluated inhibitory effect on the production of NO, PGE2, TNF-α and IL-6 in RAW 264.7 cells. Their extractions were inhibitory effect on production of MDC/CCL22 and RANTES/CCL5 in HaCaT cell and BEAS-2B cell, respectively. In addition, evaluated reduced on GPDH activity and leptin level in 3T3-L1 preadipocyte cell. Conclusions: Our results suggest that IS extracts were inhibitory effects of disease such as inflammation, allergies and obesity.