• Journal of Applied Biological Chemistry
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• 제65권2호
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• pp.83-88
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• 2022

Although it has been intensively studied over the past few decades, pancreatic cancer remains one of the most lethal cancers. Eriodictyol, a plant-derived flavonoid mainly found in citrus fruits, exerts diverse biological effects, including anti-oxidant, anti-cancer, and anti-inflammatory properties. In this study, we investigated the anticancer properties of eriodictyol and its mechanisms of action in pancreatic cancer cells. In both SNU213 and Panc-1 cells, eriodictyol decreased viability, induced apoptosis, and decreased clonogenicity. In addition, eriodictyol treatment increased the phosphorylation level of JNK and decreased the phosphorylation levels of ERK, FAK, and AKT. These observations provide insight into the molecular mechanisms of eriodictyol-induced apoptosis in pancreatic cancer cell lines, and could contribute to the development of candidate compounds for treating pancreatic cancer.

• 한국응용과학기술학회지
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• 제34권4호
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• pp.995-1003
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• 2017

본 논문은 재배가 용이하고 민간요법에서 다양하게 이용되고 있는 곰보배추의 에탄올 추출물이 화장품 소재로서 가능성이 있는지를 알아보기 위해 항산화, 미백효능에 대하여 관찰하였다. B16F10 세포에서 곰보배추 에탄올 추출물 25, 50, $100{\mu}g/mL$ 농도에서 독성이 나타나지 않았다. DPPH radical 소거능을 관찰한 결과 모든 농도에서 소거능을 보여주었고, $50{\mu}g/mL$의 농도에서 65.2%, $100{\mu}g/mL$에서 77.6%의 강한 항산화 효능을 나타냈다. Raw 264.7 세포 내에서 ROS 생성 저해능을 관찰한 결과 농도 의존적으로 유의하게 나타냈고, $100{\mu}g/mL$ 농도에서는 39.1% 억제하는 것으로 나타났다. NO생성 억제를 관찰하기 위해 Raw 264.7 세포에 곰보배추 에탄올 추출물을 25, 50, $100{\mu}g/mL$ 농도별로 첨가하여 관찰한 결과 농도 의존적으로 NO생성을 억제하였다. 시험관 내에서 L-DOPA와 L-tyrosine을 이용하여 곰보배추 에탄올 추출물이 tyrosinase activity를 농도 의존적으로 억제하는 것을 나타냈다. 세포 내에서 MSH를 가한 B16F10 세포에 곰보배추 에탄올 추출물을 25, 50, $100{\mu}g/mL$의 melanin 함량을 관찰한 결과 농도 의존적으로 억제하는 것을 보여주며 $100{\mu}g/mL$에서 30.7%로 억제하였다. 따라서 곰보배추 에탄올 추출물이 항산화 기능이 있는 미백 기능성 화장품의 소재로서 개발 가능성이 충분히 있는 것으로 사료된다.

• 대한약침학회지
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• 제6권3호
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• pp.57-63
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• 2003

Background : This study was to investigate existing studies on the mushroom Phellinus linteus for possible applications in treating hard to cure diseases and uses in herbal acupuncture as the above is known to have an anti-cancer effects and stimulating the immune system. Results : Based on the literary consideration, the following results were obtained : 1. Proteins and polysaccharides of the Class Basidiomycetes activate the host immune system for anti-cancer action without known side effects, thus it can be given for the prevention and treatment of cancer as a supplement. Phellinus linteus mushroom showed the most significant effects. 2. The Phellinus linteus mushroom is a fungi in the family Hymenochaetaceae and Phellinus, under the class Basidiomycetes. Phellinus linteus can be often found on the trunk of mulberry trees and other latifoliate trees. 3. The characteristics of Phellinus linteus are sweet, neutral in temperature, non-toxic, dissipate the stagnated blood, stop bleeding, invigorate the blood circulation and remove stasis, and nourish qi. It has been used for treating continuous menstrual discharge among the female patients and removing masses in the abdomen to name a few. 4. Phellinus linteus contains agaric acid, fatty acid, C23 and other numerous enzymes. 5. Phellinus linteus is known to have anti-cancer and anti-oxidant effects, stimulation of the immune system, as well as anti-inflammatory effects, inhibition of angiogenesis, and analgesic actions.

• Journal of Dairy Science and Biotechnology
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• 제23권2호
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• pp.107-114
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• 2005

The trend towards ageing populations has been observed over many years in Europe and the US but has accelerated significantly in developed countries in Asia including Japan and South Korea. In the latter country the elderly population (65+) has increased 5-fold between 1960 and 2000 and this group will comprise 40% of the population by 2050. This creates a new socio-economic group with specific demands and considerable spending power. As ageing occurs a range of changes occur in the body that can be moderated by adjustments in nutrition. A significant body of evidence points to changes in the balance of glutathione synthesis and utilisation as people age. Glutathione is tile most important natural anti-oxidant of the body and the amounts present can become limited by available cysteine in the diet. A cysteine-enriched peptide product, Cysteine Peption$^{TM}$ has been developed by DMV International for dietary supplement and food applications. A qualitative consumer trial has indicated benefits including improved sleep and more energy. Animal and clinical trial will be described that provide indications on bioavailability and possible mechanisms of action of Cysteine Peption$^{TM}$ with particular focus on the ageing population.

• 한국한의학연구원논문집
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• 제14권1호
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• pp.123-128
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• 2008

Glehnia littoralis (Umbelliferae), a perennial herb distributed along the coastline of northern Pacific countries, is the medicinal plant used traditionally for treatment of various diseases. This review focuses on the various pharmacological activities of Glehnia littoralis for understanding about its traditional medicinal applications, medicinal uses in the modern society, and potentials for drug development Glehnia littoralis was reported to have anti-oxidant, anti-tumor, anti-amnesic, blood circulation-promoting, immunomodulatory, anti-microbial, and allelopathic activities. However, their mechanisms remain to be clarified. Because Glehnia littoralis has been prescribed in traditional Oriental medicine as a tonic herb, Glehnia littoralis can be better than other chemical drugs and medicines which exert the equal pharmacological activities. Although the activities of Glehnia littoralis are not specifically high-potent with unique mode of action, it may turn out that it can be beneficial to exert multiple pharmacological activities. In view of low toxicity, relative cheapness, presence in the diet, and occurrence in various herbal remedies of Glehnia littoralis, it needs to be prudent to evaluate its properties and applications further.

• Advances in Traditional Medicine
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• 제10권4호
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• pp.271-277
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• 2010

We tested to determine if Mori Cortex Radicis extract has antioxidant activities and its potential mechanism of action was explored. Anti-oxidative effects were tested by measuring free radical and nitric Oxide (NO) scavenging activity, and reducing power. Since iNOS and COX-2 are important enzymes responsible for the production of free radicals in the cell, Mori Cortex Radicis extract was tested as to whether it could inhibit iNOS and COX-2 expression in LPS stimulated Raw cells. 70% methanolic extract of Mori Cortex Radicis exerted significant DPPH free radical and NO scavenging activities. In addition, the Mori Cortex Radicis extract exerted dramatic reducing power with maximal activity observed at 1 mg/ml (11-fold over control). Production of iNOS induced by LPS was significantly inhibited by the Mori Cortex Radicis extract, suggesting it could inhibit NO production by suppressing iNOS expression. COX-2 induced by LPS was also significantly inhibited by the Mori Cortex Radicis extract. The extract contains well known antioxidant components including phenolics, flavonoids and anthocyanin at the concentration of 0.23 mg/g, 42.97 mg/g and 12.08 mg/g, respectively. These results suggest that 70% methanolic extract of Mori Cortex Radicis exerts significant anti-oxidant activity via inhibiting iNOS and COX-2 induction.

• 셀메드
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• 제4권1호
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• pp.3.1-3.8
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• 2014

Spa represents a treatment widely used in many rheumatic diseases (RD). The mechanisms by which immersion in mineral or thermal water ameliorates RD are not fully understood. The net benefit is probably the result of a combination of factors, among which the mechanical, thermal and chemical effects are most prominent. Buoyancy, immersion, resistance and temperature play important roles. According to the gate theory, pain relief may be due to the pressure and temperature of the water on skin; heat may reduce muscle spasm and increase the pain threshold. Mud-bath therapy increases plasma ${\beta}$-endorphin levels and secretion of corticotrophin, cortisol, growth hormone and prolactin. It has recently been demonstrated that thermal mud-bath therapy induces a reduction in circulating levels of prostaglandin E2, leukotriene B4, interleukin-$1{\beta}$ and tumour necrosis factor-${\alpha}$, important mediators of inflammation and pain. Furthermore, balneotherapy has been found to cause an increase in insulin-like growth factor-1, which stimulates cartilage metabolism, and transforming growth factor-${\beta}$. Beneficial anti-inflammatory and anti-degenerative effects of mineral water were confirmed in chondrocytes cultures, too. Various studies in vitro and in humans have highlighted the positive action of mud-packs and thermal baths, especially sulphurous ones, on the oxidant/antioxidant system. Overall, thermal stress has an immunosuppressive effect. Many other non-specific factors may also contribute to the beneficial effects observed after spa therapy in some RD, including effects on cardiovascular risk factors (e.g. adipokines) and changes in the environment, pleasant surroundings and the absence of work duties.

• Journal of Ginseng Research
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• 제33권1호
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• pp.1-7
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• 2009

우리 몸의 많은 기관을 비롯하여 장기들은 반복적이거나 혹은 급성 스트레스를 이겨내지 못하고 만성 스트레스로 이어질 경우 질병이 생기게 된다. 특히 강하고 지속적인 스트레스에 노출되면 뇌의 해마 수지상 세포(hippocampal dendrites)가 위축되거나 크기가 작아진다. 이렇게 스트레스로 인하여 증가된 글루코 코티코이드 호르몬은 뉴런 흥분제인 glutamate를 유도하거나 에너지 대사를 변형시켜 신경 독작용을 일으킨다. 이러한 연속적인 반응은 TNF-$\alpha$ convertase(TACE)를 활성화시켜 TNF-$\alpha$가 분비되도록 하여 전사 조절자인 NF-${\kappa}B$가 핵내로 전이되고 신경 손상을 일으키는 iNOS와 COX-2와 같은 효소를 유도한다. 이런 산화적 스트레스의 상위조절인자 TACE는 스트레스에 의한 여러 가지 염증성 질환 및 숙주방어에서 가장 중요한 조절자인 TNF-alpha를 수용체로부터 "유리(shedding)" 시키는 역할을 한다. 따라서 이런 신호 전달계를 자극하는 TACE의 발현 양과 이로 인한 지속적인 처리과정이 중요한 문제로 대두되고 있다. 특히 여러 스트레스 중에서 고정화 스트레스 및 신체적 구속 스트레스에 대한 연구는 뇌에서 산화물 생성을 증가시키지만 인삼이 뇌의 산화물질 생성에 어떤 영향을 미치는지 체계적인 연구가 진행된 바 없다. 따라서 염증을 매개하는 TNF-alpha의 생산에 중요한 역할을 하는 TACE의 발현 조절 및 TNF-alpha 신호전달을 연구함으로써 인삼의 항산화 기전을 분자 수준에서 규명할 수 있게 될 것으로 기대된다.

• Journal of Ginseng Research
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• 제32권1호
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• pp.8-14
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• 2008

스트레스 반응은 위급 상황에서만 활성화 되는 것이 아니라 우리 주변을 둘러싼 모든 사회적, 물리적 환경에 의해 끊임없이 기인된다. 예를 들어 소음, 강한 빛과 열, 주거의 공간 등과 같은 물리적 환경과 타인과의 관계, 부당한 대우, 규칙, 형식과 같은 사회적 관계 이 그것이다. 고려 인삼은 항스트레스 작용을 한다고 알려져 있으나 현재까지 대부분의 연구는 인삼 엑기스 또는 총 사포닌을 투여 시 나타나는 물리화학적인 척도 (수영 시간, 뜨거움에 대한 반응, 포도당 및호르몬 수준 등)를 측정하였으며 뇌에서 ginsenoside의 기능연구는 매우 미흡한 수준이다. 특히 신호전달, 전사체 (transcriptome),proteomics, system biology와 같은 분자생물학적인 방법을 이용한 기전 연구는 전혀 수행된 바 없다. 따라서 인삼의 항 스트레스 반응 기전을 이해하기 위해서는 인삼투여 후 뇌에서 나타나는 분자적 변화에 대한 연구가 앞으로 요구된다. 또한 microarray 등의 분자생물학적 기법을 이용하여 인삼 투여에 의해 반응하는 유전자를 발굴함으로써 이러한 인자들이 인삼 효능 시험 등에 지표로 응용될 수 있을것이다.

• 한국한의학연구원논문집
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• 제8권1호
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• pp.109-126
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• 2002

The herbal extract (YMT_02) is a modified herbal extracts from Yukmijihwangtang (YMJ) to promote memory-enhancing. The YMJ extracts has been widely used as an anti-aging herbal medicine for hundred years in Asian countries. The purpose of this study is to; 1) quantitatively evaluate the memory-enhancing effect of YMT_02 by hehavior task, 2) identify candidate genes responsible for enhancing memory by cDNA microarray and 3) assess the anti-oxidant effect of YMT_02 on PC12 cell. Memory retention abilities are addressed by passive avoidance task with Sprague-Dawley (SD) male rat. Before the training session, the rats are subdivided into four groups and administrated with YMT_02, Ginkgo biloba, Soya lecithin and normal saline for 10 days. The retention test was performed. 24 hours after the training session. The retention time of the YMT_02 group was significantly (p<0.05) delayed $({\sim}100%)$, whereas Ginkgo biloba and Soya lecithin treatment delayed 20% and 10% respectively. The hippocampi of YMT_02 and control group were dissected and mRNA was further purified. After synthesizing cDNA using oligo-dT primer, the cDNA were applied and mRNA was further purified. After synthesizing cDNA using oligo-dT primer, the cDNA were applied to Incyte rat GEMTM 2 cDNA microarray. The microarray results show that prealbumin(transthyretin), phosphotidy lethanolamine N-methyltransferase, and PEP-19 are expressed abundantly in the YMT_02 treated group. Especially, PEP-19 is a neuron-specific protein, which inhibits apoptotic processes in neuronal cell. On the other hand, transcripts of RAB15, glutamate receptor subunit 2 and CDK 108 are abundant in control group. Besides, neuronal genes involved in neuronal death or neurodegeneration such as neuronal-pentraxin and spectrin are abundantly expressed in control group. Additionally, the YMT_02 shows an anti oxidative effect in the PC12 cell. The list of differentially expressed genes may implicate further insight on the action and mechanism behind the memory-enhancing effect of herbal extracts YMT_02, for example, anti-apoptotic, anti-oxidative, and neuroprotective effects.