• 한국응용약물학회:학술대회논문집
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• 한국응용약물학회 2005년도 춘계학술대회
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• pp.131-148
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• 2005

This study is peformed to investigate the effect of water extract from Vaccinium uliginosum L., on melanin production in B 16 melanoma cells, procollagen production and matrix metalloproteinase-1(MMP-1) inhibition in human fibroblast cells. One hundred grams of the Vaccinium uliginosum L. was extracted with 2000 mL of water($90^{\circ}C$, 16h, 2times). The water extracts were lyophilized and stored at $4^{\circ}C$ until used. Dry weight yields of extracts of Vaccinium uliginosum L. were $3\%$(w/w). Extracts from Vaccinium uliginosum L. showed scavenger activities on DPPH radical, superoxide anion radical, hydroxyl radical, hydrogen peroxide and singlet oxygen radical. And these substances inhibited release of cyiokines from human keratinocyte after UV B exposure. Therefore we confirmed that extracts from Vaccinium uliginosum L. had antioxidative effect. These substances inhibited purified tyrosinase activity and melanogenesis in B 16 melanoma cells treated/untreated IL-$1{\alpha}$. Moreover this extract stimulated procollagen production and inhibited MMP-1 production in human fibroblast cells treated/untreated IL-$1{\beta}$. Therefore we confirmed that extracts from Vaccinium uliginosum L. had whitening effect. And these substances decreased degree of wrinkle in hairless mouse skin that induced by UV B irradiation. Therefore we confirmed that extracts from Vaccinium uliginosum L. had anti-wrinkle effect. From the above results, it is possible that Vaccinium uliginosum L. may be developed to be an anti-melanogenesis agent and anti-wrinkle agent.

• 한국응용약물학회:학술대회논문집
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• 한국응용약물학회 2007년도 Proceedings of The Convention
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• pp.93-114
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• 2007

Vaccinium uliginosum L. (VU) is a flowering plant in the genus Vaccinium has berry fruit. This study was performed to investigate the effect of water extract of Vaccinium uliginosum L. and fractions on inhibition of melanogenesis and wrinkle formation. One hundred grams of the Vaccinium uliginosum L. was extracted with 2,000 mL of water ($90^{\circ}C$, 16h, 2 times). The water extracts were lyophilized and stored at $4^{\circ}C$ until used. Vaccinium uliginosum L. extracts showed scavenger activities on DPPH radical, superoxide anion radical, hydroxyl radical, hydrogen peroxide and singlet oxygen radical, dose dependently. And VU extract and fractions reduced melanin contents on B16F10 melanoma and inhibited the expression of melanogenesis-related proteins, tyrosinase, tyrosinase-related protein (TRP-1) and dapachrometa utomerase (Dct, TRP-2). Moreover VU extract and fractions stimulated procollagen production and inhibited MMP-1 production in human fibroblast. And it decreased degree of wrinkle formation in hairless mouse skin that induced by DVB irradiation for 9 weeks. From the above results, it is possible that Vaccinium uliginosum L. may be developed to be the health functional food and functional cosmetics that have anti-melanogenesis and anti-wrinkle effect.

• 약학회지
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• 제56권5호
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• pp.314-319
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• 2012

Age-related macular degeneration (AMD) is the leading cause of vision loss and blindness among the elderly. In this study, extract of Vaccinium uliginosum L. that has potent antioxidant activity was evaluated as effective preventive supplement for AMD using AMD animal model induced by high fat diet and UV A irradiation. Treatment with VU extract protected photoreceptor cells of retina and blocked the accumulation of lipofuscin pigment-granules induced by high fat diet and UV A light irradiation. This study suggests that VU extract may be a useful agent for prevention of progress of AMD.

• Advances in Traditional Medicine
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• 제6권1호
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• pp.65-67
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• 2006

In this study, a new extraction method was developed and two kinds of flavonoids were extracted from the mature fruit of Vaccinium uliginosum L. of China. These two kinds of flavonoids were analyzed by spectral and identified by high-performance liquid chromatography (HPLC) and UV/Vis. The extract of the fruit was total acid hydrolyzed. TLC chromatography was subsequently employed to identify the hydrolysate. Two kinds of aglycone flavonoids, quercetin and myricetin, were identified. At the same time PC chromatography was used to identify the monomer sugar in the flavonoids and it was verified as glucose. HPLC, UV/Vis, and Mass spectrum analyses revealed that the flavonoids were quercetin 3-monoglucosides and myricetin 3-monoglucosides.

• Preventive Nutrition and Food Science
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• 제19권4호
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• pp.343-347
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• 2014

The present study investigated the effects of Vaccinium uliginosum L. (bilberry) on the learning and memory impairments induced by amyloid-${\beta}$ protein ($A{\beta}P$) 1-42. ICR Swiss mice were divided into 4 groups: the control ($A{\beta}40$-1A), control with 5% bilberry group ($A{\beta}40$-1B), amyloid ${\beta}$ protein 1-42 treated group ($A{\beta}1$-42A), and $A{\beta}1$-42 with 5% bilberry group ($A{\beta}1$-42B). The control was treated with amyloid ${\beta}$-protein 40-1 for placebo effect, and Alzheimer's disease (AD) group was treated with amyloid ${\beta}$-protein 1-42. Amyloid ${\beta}$-protein 1-42 was intracerebroventricular (ICV) micro injected into the hippocampus in 35% acetonitrile and 0.1% trifluoroacetic acid. Although bilberry added groups tended to decrease the finding time of hidden platform, no statistical significance was found. On the other hand, escape latencies of $A{\beta}P$ injected mice were extended compared to that of $A{\beta}40$-1. In the Probe test, bilberry added $A{\beta}1$-42B group showed a significant (P<0.05) increase of probe crossing frequency compared to $A{\beta}1$-42A. Administration of amyloid protein ($A{\beta}1$-42) decreased working memory compared to $A{\beta}40$-1 control group. In passive avoidance test, bilberry significantly (P<0.05) increased the time of staying in the lighted area compared to AD control. The results suggest that bilberry may help to improve memory and learning capability in chemically induced Alzheimer's disease in experimental animal models.

• 한국산림과학회지
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• 제94권4호통권161호
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• pp.209-213
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• 2005

희귀수종 들쭉나무(Vaccinium uliginosum L.)의 유전자원 보존을 위한 분자유전학적 정보를 제공하고자 한라산 및 설악산 정상부에 국소적으로 분포하고 있는 2개 집단을 대상으로 I-SSR 표지자 분석을 수행하였다. 증폭된 I-SSR 산물은 총 68개였고, 유전다양성은 한라산 집단이 0.539로 설악산 집단(0.401) 보다 높았으며, 동일한 표지자로 분석된 타 희귀수종에 비해 상대적으로 높은 유전적 다양성을 보였다. AMOVA 분석 결과 전체 유전변이 중 66.5%가 각 집단 내 개체 간에 공통적으로 존재하며, 33.5%는 집단간 유전적 차이에 기인하는 것으로 추정되어 분석된 두 집단 간에 매우 높은 유전적 분화가 관찰되었다. 지리적으로 격리된 이들 집단 간의 높은 유전적 이질성은 두 집단이 각각 별개의 조상집단으로부터 유래되었을 가능성과 빙하기 이후 급격한 환경변화와 지리적 격리 등으로 인해 각 집단이 유전적 부동과정을 거치며 유전적 이질성이 증가하였을 가능성 등에 의해 설명될 수 있을 것으로 생각된다.

• 한국식품영양과학회지
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• 제41권12호
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• pp.1727-1733
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• 2012

본 연구는 들쭉을 투여한 흰쥐를 대상으로 고지방과 당뇨를 유발시킨 후의 생리활성 변화를 조사하였다. 수컷 SD rat를 정상군, 고지방군, 당뇨군으로 분류, 들쭉투여군과 대조군으로 분류하였다. 들쭉은 식이 5% 첨가의 경우 식이 섭취량이 증가하였으나, 체중증가량은 감소시켰다. 들쭉의 투여는 또한 STZ에 의해 유발된 당뇨대조군의 증가된 혈청 중성지질 수준을 감소시켰고, HDL-cholesterol 수준을 유의적(p<0.05)으로 증가시켰으며, 당뇨로 증가된 동맥경화지수 수치를 유의적(p<0.05)으로 감소시켰다. 간 지질의 경우 고지방 식이로 인해 증가된 총지질량과 총콜레스테롤, 중성지질을 감소시켰다. 이는 들쭉의 투여가 지질대사를 촉진하는 것으로 사료된다. 지질 과산화물은 고지방의 투여와 당뇨유발로 증가하였고 들쭉의 병용투여가 이를 감소시켰으나 유의성은 없었다. Oral glucose tolerance test(경구당부하검사)에서 정상군에서는 혈당의 변화가 거의 관찰되지 않았으며, 당뇨유발쥐의 포도당 투여 후 30분에서 261.20 mg/dL로 높은 혈당을 들쭉 투여로 약 27% 정도 감소시키고, 120분 후에는 공복 수준으로 혈당 수준을 회복시키는 것으로 나타났다. 따라서 들쭉의 투여는 당뇨쥐의 혈청과 지질대사를 개선하고 당대사를 촉진하여 혈당을 강하시키며, 간의 항산화효소 활성을 증가시킴과 동시에 지질과산화량을 감소시켜 간 기능을 개선시키는 것으로 사료되며 고지방으로 지방간을 유도한 흰쥐의 혈청과 간 지질대사를 촉진함으로써 당뇨발생 시 간기능 보호와 더불어 당뇨의 예방에 도움을 줄 수 있을 것으로 사료된다.