• Journal of Oriental Neuropsychiatry
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• v.19 no.2
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• pp.95-110
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• 2008

Objective : This experiment was designed to investigate the effects of the PMCMT hot water extract & ultra-fine powder on Alzheimer's Disease Model Induced by ${\beta}A$. Method : The effects of the PMCMT hot water extract on expression of proinf1ammatory cytokine mRNA in BV2 microglial cell cell line treated by lipopolysacchaide(LPS). The effects of the PMCMT hot water extract & ultra-fine powder on (1) the behavior (2) AChE in serum (3) the infarction area of the hippocampus, and brain tissue injury in Alzheimer's diseased mice induced with ${\beta}A$ were investigated. Result : 1. The PMCMT hot water extract suppressed the expression of proinflammatory cytokine mRNA in BV2 microglial cell line treated with LPS. 2. The PMCMT hot water extract & ultra-fine powder a significant inhibitory effect on the memory deficit was shown for the mice with Alzheimer's disease induced by ${\beta}A$ in the Morris water maze experiment, which measured stop-through latency and distance movement-through latency 3. The PMCMT hot water extract & ultra-fine powder suppressed the over-expression of AChE activity in the serum of the mice with Alzheimer's disease induced by ${\beta}A$. 5. The PMCMT ultra-fine powder reduced infarction area of hippocampus significantly, and the PMCMT hot water extract & ultra-fine powder controlled the injury of brain tissue in the mice with Alzheimer's disease induced by ${\beta}A$. Conclusions : These results suggest that the PMCMT hot water extract & ultra-fine powder may be effective for the prevention and treatment of Alzheimer's disease. Investigation into the clinical use of the PMCMT hot water extract & ultra-fine powder for Alzheimer's disease is suggested for future research.

• Journal of Physiology & Pathology in Korean Medicine
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• v.20 no.5
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• pp.1200-1210
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• 2006

This experiment was designed to investigate the effect of the CMT and MCMT hot water extract & ultra-fine powder on microglia and memory deficit model. The effects of the CMT and MCMT hot water extract on expression of IL-l${\beta}$, IL-6, TNF-${\alpha}$, NOS-II, COX-2, IL-10, TGF-${\beta}$1 mRNA and production of IL-lP, IL-6, TNF-a, NO, ROS in BV2 microglial cell line treated by lipopolysacchaide(LPS) ; serum glucose, uric acid, AChE activity of the memory deficit mice induced by scopolamine , behavior of the memory deficit mice induced by scopolamine and were investigated, respectively. The CMT and MCMT hot water extract suppressed the expression of IL-1${\beta}$, IL-6, TNF-${\alpha}$, NOS-II, COX-2 mRNA, production of IL-l${\beta}$, IL-6, TNF-${\alpha}$, NO, ROS and increased the expression of IL-10, TGF-${\beta}$l mRNA in BV2 microglial cell line treated by LPS. The MCMT hot water extract & ultra-fine powder increased glucose, decreased uric acid and AChE significantly in the serum of the memory deficit mice induced by scopolamine. The CMT and MCMT hotwater extract & ultra-fine powder groups showed significantly inhibitory effect on the scopolamine-induced impairment of memory in the experiment of Morris water maze. According to the above result, it is suggested that the CMT and MCMT hot water extract & ultra-fine powder might be usefully applied for prevention and treatment of dementia.

• Journal of Physiology & Pathology in Korean Medicine
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• v.20 no.4
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• pp.997-1008
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• 2006

This experiment was designed to investigate the effect of the CMT and PCMT hot water extract & ultra-fine powder on microglia and memory deficit model. The effects of the CMT and PCMT hot water extract on expression of $IL-l{\beta},\;IL-6,\;TNF-{\alpha}$, NOS-II, COX-2, IL-10, $TGF-{\beta}1$ mRNA and production of $IL-l{\beta},\;IL-6,\;TNF-{\alpha}$, NO, ROS in BV2 microglial cell line treated by lipopolysacchaide(LPS) , serum glucose, uric acid, AChE activity of the memory deficit mice induced by scopolamine , behavior of the memory deficit mice induced by scopolamine and were investigated, respectively. The CMT and PCMT hot water extract suppressed the expression of $IL-l{\beta},\;IL-6,\;TNF-{\alpha}$, NOS-11, COX-2 mRNA, production of $IL-l{\beta},\;IL-6,\;TNF-{\alpha}$, NO, ROS and increased the expression of IL-10, $TGF-{\beta}1$ mRNA in BV2 microglial cell line treated by LPS. The PCMT hot water extract & ultra-fine powder increased glucose, decreased uric acid and AChE significantly in the serum of the memory deficit mice induced by scopolamine. The CMT and PCMT hot water extract & ultra-fine powder groups showed significantly inhibitory effect on the scopolamine-induced impairment of memory in the experiment of Morris water maze. According to the above result, it is suggested that the CMT and PCMT hot water extract & ultra-fine powder might be usefully applied for prevention and treatment of dementia.

• The Korean Journal of Pharmacology
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• v.30 no.1
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• pp.87-100
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• 1994

It has been known for some time that dopamine-containing cells are existed in sympathetic ganglia, i.e., small, intensely fluorescent cells. However, its role and mechanism of action as a peripheral neurotransmitter are poorly understood so far. In the present study, an attempt was made to examine the effect of apomorphine, which is known to be a selective agonist of dopaminergic $D_2$. receptor on secretion of catecholamines (CA) from the isolated perfused rat adrenal gland. The perfusion of a low concentration of 10uM apomorphine into an adrenal vein for 20 min produced significant reduction in CA secretion induced by 5.32 mM ACh, 56 mM KCl, 100 uM DMPP and 100 uM McN-A-343. Increasing apomorphine concentration to 30 uM led to more markedly decreased CA secretion as compared to the case of 10 uM apomorphine and also did inhibit clearly CA release by $10^{-5}M$ Bay-K-8644. Furthermore, in adrenal glands preloaded with a higher dose of 100 uM apomorphine, CA releases evoked by ACh, excess $K^+$, DMPP and McN-A-343 were almost abolished by the drug. The perfusion of $3.3{\pm}10^{-5}M$ metoclopramide, which is well-known as a selective dopaminergic $D_2$ antagonist, produced significantly inhibitory effect of CA release by ACh, DMPP and McN-A-343 but did not affect that by excess $K^+$. However, preloading of 30uM apomorphine in the presence of metoclopramide did not modify the CA secretory effect of excess $K+$ and DMPP. These experimental results demonstrate that apomorphine causes dose-dependent inhibition of CA secretion by cholinergic receptor stimulation and also by membrane depolarization from the isolated perfused rat adrenal gland, suggesting that these effects appear to be exerted by inhibiting influx of extracellular calcium into the rat adrenal medullary chromaffin cells through activation of inhibitory dopaminergic receptors.

• Journal of the Korean Society of Food Science and Nutrition
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• v.45 no.7
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• pp.966-972
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• 2016

We investigated that methanolic extracts of 20 kinds of seaweeds from Jeju Island for their antioxidant activities, acetylcholinesterase and ${\beta}$-secretase inhibitory activities, and neuronal survival in order to evaluate their potentials as anti-dementia agents. Ecklonia cava extracts had the highest total polyphenol content among the 20 seaweed extracts. The antioxidant activity of seaweed extracts was measured by using 2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) assay. It was found that Ecklonia kurome extracts had the highest ABTS scavenging activity ($IC_{50}=0.07{\pm}0.01mg/mL$). As a result, Ecklonia cava, Ecklonia kurome, and Myelophycus simplex extracts were found to be the most effective in terms of acetylcholinesterase inhibitory activity. In the ${\beta}$-secretase activity assay, Ecklonia cava and Ecklonia kurome extracts were effectively inhibited ($84.41{\pm}1.70%$ and $81.17{\pm}2.43%$, respectively). As expected, neuronal cell death induced by $H_2O_2$ in SH-SY5Y cells was diminished by Ecklonia cava, Ecklonia kurome, and Sargassum yezoense extracts. Taken together, these results showed that Ecklonia cava extract has potential anti-dementia activity, which suggests that it might provide an effective strategy for improving dementia.

• Journal of Mushroom
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• v.13 no.3
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• pp.192-198
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• 2015

This study was performed in order to analyze the fibrinolytic, thrombin inhibitory, anti-oxidative, acetylcholinesterase inhibitory, and immuno-enhancing activities of the water extract and solvent fractions isolated from Grifola frondosa. Fibrinolytic activity was analyzed using the fibrin plate method, and thrombin inhibitory activity was assayed using the substrate H-D-Phe-piparg- pna. Anti-oxidative activity was estimated using the DPPH assay, and AChE inhibitory activity was measured using the spectrophotometric method. Immuno-enhancing activity was examined using the nitric oxide (NO) production in RAW 264.7 macrophage cells. Cell viability was determined using the MTS assay. Fibrinolytic activities were the highest in water extract (1.55 plasmin units/mL) followed by water fraction (0.85 plasmin units/mL). The thrombin inhibitory activities of the water and ethyl acetate fractions were determined to be 76.43% and 72.59%, respectively. The acetylcholinesterase inhibitory activities of chloroform and hexane fractions exhibited values of 95.14% and 94.74%, respectively. The butanol fraction showed the highest anti-oxidative activity at 94.47%. Anti-proliferating activity against Raw 264.7 cells showed no cytotoxicity. The production of NO in Raw 264.7 cells increased up to 2-fold by adding the water fraction compared to the untreated control. These results suggest that Grifola frondosa may serve as a useful functional food for the enhancement of immune function and the prevention and therapy of cardiovascular diseases.

• Korean Journal of Clinical Laboratory Science
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• v.50 no.3
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• pp.225-235
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• 2018

Phellinus gilvus is a medicinal mushroom used that has been used in folk medicine in Asian countries for centuries. The aim of this study was to investigate the anti-xanthine oxidase, anti-cholinesterase, and anti-inflammatory activities of methanol (ME) and hot water (HW) extracts prepared from fruiting bodies of Ph. gilvus. ME and HW had good anti-xanthine oxidase (XO) activities compared to allopurinol, an inhibitor of xanthine oxidase. ME showed comparable and slightly lower inhibitory activity against acetylcholinesterase (AChE) and butyrylcholinesterase (BChE), respectively, than galanthamine, a standard AChE and BChE inhibitor. ME also showed a protective effect against glutamate-induced cytotoxicity at 40 mg/mL and 100 mg/mL in PC-12 cells. ME (0.5~2.0 mg/mL) significantly inhibited nitric oxide (NO) production in RAW 264.7 murine macrophage cells stimulated with lipopolysaccharide (LPS). Carrageenan-induced hind-paw edema in rats was significantly reduced 2~6 hr after treatment with 50 mg/kg of ME, which was comparable to administration of 5 mg/kg of indomethacin, the positive control. These results demonstrate that ME and HW of Ph. gilvus fruiting bodies possess good anti-xanthine oxidase, anti-cholinesterase, and anti-inflammatory activities.

• Journal of Acupuncture Research
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• v.22 no.1
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• pp.77-90
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• 2005

Objective : Neuropathic pain sometimes arises from a partial peripheral nerve injury. This kind of pain is usually accompanied by spontaneous burning pain, allodynia and hyperalgesia. It has been well known that acupuncture is effective to the pain control from ancient time in Asia. However, it is not clear whether Electroacupuncture(EA) & Acupuncture(AC) can control neuropathic pain effectively. The aim of this study is to examine if Electroacupuncture&Acupuncture at Hu-gye(SI03), Wijung(BL4O), Hu-gye(SI03) Wijung(BL40) may be effective to the neuropathic pain (mechanical allodynia cold allodynia) in a rat model of neuropathic pain. Methods : A rat model of neuropathic pain was made by injurying tibial nerve and sural nerve while common peroneal nerve was maintained. After the neuropathic surgery, we examined if the rats exhibited the behavioral signs allodynia. The allodynia was assessed by stimulating the medial malleolus with von frey filament and acetone. Three weeks after the neuropathic surgery, electroacupuncture &, acupuncture stimulation was delivered to Hu-gye(SI03), Wijung(BL40), Hu-gye(SI03) Wijung(BL40) one time a day for one week. After that we examined the withdrawal response of neuropathic rats' legs by von frey filament and acetone stimulation, c-fos and AchE(Acetylcholine esterase) in the periaqe- ductal gray(PAG) of neuropathic rats' brain. Results : 1. Electroacupuncture&Acupuncture at Hu-gye(SI03), Wijung(BL40), Hu-gye(SI03) Wijung(BL4O) significantly decreased the withdrawal response of mechanically allodynia in EA-BL40+SI03 group and AC-SI03 group as compared with control group on 6th day. 2. Electroacupuncture &Acupuncture at Hu-gye(SI03), Wijung(BL40), Hu-gye (SI03) Wijung (BL40) significantly decreased the withdrawal response of chemical allodynia(cold allodynia) in EA-SI03 group, EA-BL40+SI03 group and AC-SI03 group as compared with control group on 6th day. 3. Electroacupuncture & Acupuncture at Hu-gye ( SI03), Wijung (BL40), Hu-gye (SI03) Wijung(BL40) significantly decreased the expression of c-fos in the periaqe- ductal gray(PAC) of neuropathic rats' brain in EA-BL40+SI03 group and AC-SI03 group as compared with control group. 4. Electroacupuncture&Acupuncture at Hu-gye(SI03), Wijung(BL40), Hu-gye (SI03) Wijung(BL40) significantly decreased the expression of AchE in the periaqe- ductal gray(PAG) of neuropathic rats' brain in EA-BL40+SI03 group and AC-SI03 group as compared with control group. Conclusions : Based on the above results it is assumed that Electroacupuncture at Hu-gye(SI03) Wijung(BL40) and Acupuncture at Hu-gye(SI03) can help the treatment of neuropathic pain.

• The Korean Journal of Mycology
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• v.47 no.1
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• pp.75-81
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• 2019

The goal of this study was to characterize unrecorded wild yeasts from soils of spices plants fields and further, to elucidate its anti-demential activities and tyrosinase inhibitory activity. Piskurozyma taiwanensis R4-1 (NIBRFGC000502619), Nadsonia starkeyi-henricii R6-2 (NIBRFGC000502618), and Canadida friedrichii M12-6 (NIBRFGC000502615) isolated from soil of garlic field represented newly recorded yeast strains in Korea. Vishniacozyma peneaus I2-9 (NIBRFGC000502617) and Cryptococcus aspenensis I21-1 (NIBRFGC000502616) from soil of ginger field represented also newly recorded yeast strains, and microbiological characteristics of its fifteen yeast strains were investigated. All of these unrecorded yeasts exhibited oval-global shape and have ascospores except Canadida friedrichii M12-6. Piskurozyma taiwanensis R4-1 and Canadida friedrichii M12-6 grew well in vitamin-free medium, and Piskurozyma taiwanensis R4-1 was halotolent growing in 10% NaCl-containing yeast extract peptone dextrose (YPD) broth. After prepared cell-free of the unrecorded wild yeasts, acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) inhibitory activities as anti-dementia activity and tyrosinase inhibitory activity as whitening activity were determined. Cell-free extract from Canadida friedrichii M12-6 had the highest tyrosinase inhibitory activity of 14.4%.

• Food Science and Preservation
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• v.20 no.6
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• pp.840-845
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• 2013

This study investigated the effects (i.e., the acetylcholinesterase activity, lipid peroxidation, and neuronal survival) of 20 kinds of medicinal water extracts. The water extracts of three medicinal plants - Cornus officinalis, Glycyrrhiza glabra, and Angelica gigas - were found to be the most effective on acetylcholinesterase inhibitory activity. In the lipid peroxidation-generating system induced by $H_2O_2/FeSO_4$ in rat brain homogenates, Perilla frutescens, Polygonum multiflorum, Cinnamomun cassia, and G. glabra exhibited protective activity against lipid peroxidation. The neuronal cell death induced by L-glutamate in PC12 was suppressed by the water extracts of G. glabra, Cinnamomun cassia, Platycodon grandiflorum, and Mentha arvensis at the concentration of $100{\mu}g/mL$. Taken together, these results showed that the water extract of G. glabra has the potential anti-dementia activity, which suggests that it might provide an effective strategy for improving dementia.