• 공업화학
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• 제28권2호
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• pp.252-256
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• 2017

백년초(Opuntia) 손바닥 선인장은 우리나라 남쪽 지방인 거제도, 제주도, 남해안 등지에서 자생하며 매년 4~5월경에 꽃이 피고 11~12월경에 자주색 열매가 익는다. 백년초는 예로부터 민간요법에 흔히 사용되었으며 혈액순환을 원활하게 하고 해독, 진통, 항산화 작용 등에 큰 효과가 있다. 본 연구에서는 서귀포 백년초의 항산화성 기능, 항당뇨, 항균활성 효능을 입증하여 기능성 원료로서의 가치를 파악하고자 하였다. 연구 결과 백년초 내 항산화성을 갖는 물질인 택시폴린을 추출하여 강력한 항산화 효과를 확인하였고 항당뇨성 기능 실험에서 시판되고 있는 당뇨치료제와 비교하였을 때 높은 수준의 항당뇨 기능을 확인하였다. 또한 항균 효과 측정 결과 대장균과 살모넬라균 등에서 강한 항균활성을 보여 서귀포 백년초의 기능성 원료로서의 우수한 가치를 입증하였다.

• 생약학회지
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• 제36권4호통권143호
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• pp.324-331
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• 2005

The roots of Rosa rugosa have been used to treat diabetes mellitus in the folkloric society of Korea. To demonstrate the active component for the rat obesity induced by high fat diet for 6 weeks, the phytochemical fractionation and the pharmacological activity test were performed on this crude drug. It was shown that the methanolic extract and its EtOAc fraction inhibited the weight increase of the rat body, abdominal fat pad and hyperlipidemia at 200 mg/kg dose. Further, the triterpenoids, euscaphic acid and tormentic acid, isolated from R. rugosa roots were active at 30 mg/kg in the same assay. The two components shifted serum total-, HDL, and LDL-cholesterol levels toward the values of the unteated group, suggesting that the active compounds has hypolipidemic effects. The rats fad euscaphic acid and tormentic acid also reduced thiobarbituric acid-reactive substance (TBARS) and hydroxyl radical in the rat blood and increased superoxide dismutase activity compared to the control. TBARS values and carbonyl contest of the hepatic protein were reduced by treatment with the two triterpenoids. Antioxidative enzyme (SOD, glutathione peroxidase, and catalase) activities in hepatic were increased by treatment of rats with the triterpenoids, which suggests that triterpenoids inhibited the reduction of hepatic antioxidative activity caused by high fat diet. Taken together, these results support that euscaphic acid and tormentic acid improve a high fat diet-induced hyperlipidemia via the activation of antioxidative mechanism.

• Journal of Preventive Medicine and Public Health
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• 제53권5호
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• pp.323-331
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• 2020

Objectives: This study aimed to determine the prevalence and correlates of sexual intercourse among junior secondary and high school students in Indonesia from the 2015 Global School-based Health Survey (GSHS). Methods: The survey was conducted among 11 110 students from 75 schools in Indonesia using a self-administered questionnaire. Univariate and multivariate analyses were conducted to explore associations between sexual intercourse and socio-demographic variables, substance use, mental distress, and protective factors. Results: Overall, 5.3% of students reported having ever had sex (6.9% of boys and 3.8% of girls). Of students who engaged in sexual intercourse, 72.7% of boys and 90.3% of girls had an early sexual debut (before reaching the age of 15) and around 60% had multiple sex partners. Sexual intercourse was associated with gender, school grade, smoking, alcohol consumption, drug use, suicidal ideation, truancy, peer support, and parental supervision. Conclusions: These findings indicate a pressing need to develop more comprehensive sexual health education in the national curriculum. An effective strategy should also address other risky behaviours.

• 동의생리병리학회지
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• 제19권6호
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• pp.1689-1693
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• 2005

In this case, it is considered that the cause of the lower limb Flaccidity-syndrome is the peripheral neuropathy accompanied with inflammation and in oriental medicine, it is understood that the factors such as lung fluid consumption caused by heat-evil, wetness-heat evil cause the lower limb Flaccidity-syndrome. Because the peripheral neuropathy is regarded as a neuropathy with a series of inflammation reaction producing inflammatory neuropeptides such as substance P, prostaglandin ect., in western medicine, nonsteroidal antiinflammation drug;NASID, lidocaine, capsaicine are prescribed to control this neuropathy. In the view of treatment of the lower limb weakness, Wooseul-tangkami is used to remove the wetness-heat evil and we had a electronic acupuncture on the Yangmyung channel(陽明經) selected in The Yellow Emperor's of internal Medicine and also on Panggwang channel(膀胱經) considered as painful lesion. We experineced a case of the lower limb Flaccidity-syndrome diagnosed as the peripheral neuropathy the patient was treated by wooseul-tangkami, a acupuncture on Yangmyung channel and also Panggwang channel and had a significant improvement in gait ability and the range of motion.

• 한국식품과학회지
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• 제33권3호
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• pp.389-394
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• 2001

오미자 열매로부터 항균활성물질을 분리하기 위하여 methanol 조추출물의 용매분획의 항균력을 측정하였다. 항균활성을 나타낸 methanol 조추출물은 다시 여러 가지 용매로 순차적으로 분배하여 n-hexan층, dichloromethane층, ethyl acetate층, buthanol층과 water층을 얻은 다음, 이들 분배층에 대해 항균활성을 검색한 결과, ethyl acetate층에서 가장 활성이 높게 나타났다. 활성이 높게 나타난 ethyl acetate층은 감압증류한 후, 여러 가지 chromatography를 이용하여 분리, 정제한 다음, MS, $^1H-NMR,\;^{13}C-NMR,\;$, DEPT 및 2D NMR등을 이용하여 항균활성물질의 구조를 동정하였다. 그 결과 오미자의 약리기능을 나타내는 주요성분인 lignan계통의 화합물인 gomisin C로 추정되는 compound를 분리하였고, 다른 하나는 오미자의 정유성분인 trimethylcitrate로 동정하였다. 또한 오미자추출물의 균증식도와 분쇄육의 저장성에 미치는 효과를 검토하기 위하여 식품보장실험을 수행하였다. 그 결과 Salmonella typhimurium에 의해 문제시되는 식품에 천연보존료로서의 이용가능성을 시사하였다.

• 동아시아식생활학회지
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• 제15권5
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• pp.542-548
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• 2005

In recent years, propolis has attracted much attention as an useful substance in medicine and functional food, even if it is known as a natural remedy in folk medicine since ancient times. propolis was registered as natural food since 1995 on Korean Food Act by Korean Food and Drug Administration(KFDA). The present study demonstrated the optimization of isolation of crude propolis by ethanol, and tumoricidal effect of pro polis. The optimal concentration of ethanol to separate a high quantity of propolis was $60\%$. The cytotoxic effect of ethanol extracted propolis against various cancer cell lines including murine lymphoma (Sarcoma-180), murine T-lymphoma (YAC-1), human breast carcinoma (MCF-7), human gastric carcinoma (KATOIII) and human hepatocellular carcinoma (Hep3B) and human lung adenocarcinoma (A-549) was observed using SRB and MIT assay. In order to investigate the curative activity by oral administration of propolis on tumor, ICR mice was subcutaneously implanted Sarcoma 180. In 300mg/kg and 600mg/kg propolis administered group, development of implanted tumors was inhibited by $40.9\%\;and\;67.9\%$ at 16th day, respectively. In the same dose of propolis administered group, development of implanted tumors was inhibited more strongly with dose dependent manner. Therefore, these data suggested propolis may show tumoricidal effects. In conclusion, these results indicate that propolis, one of the few natural remedies, can be used as functional food with tumoricidal effects.

• 대한치과의사협회지
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• 제55권11호
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• pp.789-799
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• 2017

Ultrasound images are noninvasive, can be observed in real time, have no radiation exposure, do not cause pain, and are not restricted in use depending on the patient's prosthetic implant or medical condition. Since the use of ultrasound in the dental field was first applied for tooth preparation in 1957, the use of diagnostic ultrasound for the first time in 1963 has been reported. Currently, it is used in the diagnosis of soft tissue lesions such as malignant tumor or salivary gland disease, fine needle aspiration test, temporomandibular joint disease, lymph node metastasis, measurement of muscle thickness and inflammatory diseases, differentiation of periapical cyst and granulation tissue, measurement of periodontal tissue thickness. The ultrasound image can be visualized in real time. The clinician can explain the structure to the patient while consulting the patient and consult the patient. When injecting the drug into a specific site or aspirating a specific site or substance, So that it can be confirmed and practiced. Recently, ultrasonic equipment specialized in the dental field has been developed and marketed, and it is expected that the use of ultrasonic waves will become active in the dentistry. In the future, development of popular equipment with size and frequency suitable for dental diagnosis and various researches on maxillofacial ultrasonic anatomy. If clinical studies are continuously carried out to demonstrate efficacy, ultrasound is expected to aid in accurate diagnosis and treatment throughout the dentistry.

• Restorative Dentistry and Endodontics
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• 제29권3호
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• pp.239-248
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• 2004

The purpose of this study was to investigate the influence of NK1 receptor antagonists on the pulpal blood flow (PBF) when applied iontophoretically through the dentinal cavity of the teeth in order to understand whether iontophoretically applied NK1 receptor antagonists can control the pulpal inflammation. Eleven cats were anesthetized with alpha-chloralose and urethane, and substance P (SP) was administered to the dental pulp through the catheterized lingual artery in doses that caused PBF change without the influence of systemic blood pressure. NK1 receptor antagonists were applied iontophoretically to the prepared dentinal cavity of ipsilateral canine teeth of the drug administration, and PBF was monitored. Data were analyzed statistically with paired t-test. PBF increase after iontophoretic application of the NK1 receptor antagonists followed by the intra-arterial administration of SP was significantly less than PBF increase after iontophoretic application of the 0.9% saline followed by the intra-arterial administration of SP as a control (p < 0.05). Iontophoretic application of the NK1 receptor antagonists (0.2~3.4 mM) following the intra-arterial administration of SP resulted in less increase of PBF than the iontophoretic application of the 0.9% saline following the intra-arterial administration of SP as a control (p < 0.05). Therefore. the results of the present study provide evidences that the iontophoretic application is an effective method to deliver drugs to the dental pulp. and that iontophoretically applied NK1 receptor antagonists block SP-induced vasodilation effectively. The above results show the possibility that the iontophoretical application of NK1 receptor antagonists can control the neurogenic inflammation in the dental pulp.

• 한방안이비인후피부과학회지
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• 제30권1호
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• pp.74-86
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• 2017

Objectives : This study aimed to assess the scientific evidence for the use of Hwanglyeonhaedok-tang, a traditional herbal formula, in the treatment of rhinitis, and prepare the basis for the investigational new drug application by analyzing the experimental studies. Methods : Ten electronic databases were searched up to December, 2016 without language limitation. Experimental studies on the anti-inflammatory and anti-allergic effects of Hwanglyeonhaedok-tang against rhinitis were included. We extracted data about study design, characteristics of intervention, outcomes, and pharmacological effects from the included studies and summarized them. Results : Eight hundred and thirty-three potentially relevant studies were identified, of which 18 experimental studies met our inclusion criteria. Of 18 included studies, 5 had conducted cell viability test, and all studies had reported that Hwanglyeonhaedok-tang was non-cytotoxic. Hwanglyeonhaedok-tang exhibits anti-inflammatory effect by regulating the inflammation-related cytokines including nitric oxide(NO), prostaglandin $E_2(PGE_2)$, interleukin-6(IL-6), and tumor necrosis $factor-{\alpha}(TNF-{\alpha})$ in vitro and in vivo. Hwanglyeonhaedok-tang exhibits anti-allergic effect by suppressing eosinophil, and histamine levels. Hwanglyeonhaedok-tang helps in the recovery of nasal mucous membrane by supressing goblet cells, heat shock protein 70, and substance P. Conclusions : This study suggests that Hwanglyeonhaedok-tang has the potential to be developed as therapeutic agent for rhinitis. Further experimental and clinical studies needed to be performed to prove the safety and efficacy.

• Biomolecules & Therapeutics
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• 제23권4호
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• pp.379-385
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• 2015

The eye irritation potential of drug candidates or pharmaceutical ingredients should be evaluated if there is a possibility of ocular exposure. Traditionally, the ocular irritation has been evaluated by the rabbit Draize test. However, rabbit eyes are more sensitive to irritants than human eyes, therefore substantial level of false positives are unavoidable. To resolve this species difference, several three-dimensional human corneal epithelial (HCE) models have been developed as alternative eye irritation test methods. Recently, we introduced a new HCE model, MCTT HCE$^{TM}$ which is reconstructed with non-transformed human corneal cells from limbal tissues. Here, we examined if MCTT HCE$^{TM}$ can be employed to evaluate eye irritation potential of solid substances. Through optimization of washing method and exposure time, treatment time was established as 10 min and washing procedure was set up as 4 times of washing with 10 mL of PBS and shaking in 30 mL of PBS in a beaker. With the established eye irritation test protocol, 11 solid substances (5 non-irritants, 6 irritants) were evaluated which demonstrated an excellent predictive capacity (100% accuracy, 100% specificity and 100% sensitivity). We also compared the performance of our test method with rabbit Draize test results and in vitro cytotoxicity test with 2D human corneal epithelial cell lines.