• 대한소아치과학회지
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• 제26권2호
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• pp.296-309
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• 1999

가철성 상교정 장치에 많이 사용되는 자가중합형 상교정용 레진의 미반응 단량체는 레진의 물성과 생물학적인 면에 많은 영향을 끼친다. 따라서 미반응 단량체를 최소화하고 중합률을 최대로 하는 중합방법에 대한 연구는 중요한 의의를 갖는다. 저자는 자가중합형 상교정용 레진의 중합시간과 중합방법에 따른 중합률을 비교해보기 위해 시편을 다음과 같이 5군으로 나누어 연구를 진행하였다. 상교정용 레진의 분말과 용액을 혼합하여 제 1군은 $28^{\circ}C$의 공기중에 보관하였고, 제 2군은 $28^{\circ}C$의 물에, 제 3군은 $28^{\circ}C$의 물과 30psi의 압력에, 제 4군은 $43^{\circ}C$의 물에, 제 5군은 $43^{\circ}C$의 물과 30psi의 압력하에 각각 보관하였고, 10분, 1시간, 12시간, 1일, 3일 경과 후에 각 시편을 Fourier 변환적외선분광법을 이용하여 중합률을 측정하여 다음과 같은 결론을 얻었다. 1. 모든 군에서 중합시간이 경과함에 따라 중합률도 지속적으로 증가하는 양상을 보였다. 10분 경과 후의 결과와 비교하여 볼 때, 제 1군은 12시간 경과 후부터 중합률의 증가가 유의성이 있었고, 제 2군과 3군, 4군, 5군은 1시간 경과 후부터 유의성이 있었다(p<0.05). 2. 10분과 1일, 3일 경과 후에 제 5군, 제 4군, 제 3군, 제 2군, 제 1군의 순서대로 중합률이 높았다. 3. 중합시 온도에 따른 비교에서, 1일 경과 후를 제외하고는 모든 시간에서 $43^{\circ}C$에서 중합시킨 군의 중합률이 $28^{\circ}C$에서 중합시킨 군의 중합률 보다 유의성 있게 높았다(p<0.05). 4. 압력은 12시간 경과 후를(p<0.05) 제외하고는 중합률에 영향을 주지 못했다. 5. 보관방법은 1시간 경과 후를(p<0.05) 제외하고는 중합률에 영향을 주지 못했다.

• Biomolecules & Therapeutics
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• 제23권1호
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• pp.45-52
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• 2015

To explore the anti-allergic and anti-inflammatory effects of extracts of Petasites genus, we studied the effects of s-petasin, a major sesquiterpene from Petasites formosanus (a butterbur species) on asthma and peritonitis models. In an ovalbumin-induced mouse asthma model, s-petasin significantly inhibited the accumulations of eosinophils, macrophages, and lymphocytes in bronchoalveolar fluids. S-petasin inhibited the antigen-induced degranulation of ${\beta}$-hexosamidase but did not inhibit intracellular $Ca^{2+}$ increase in RBL-2H3 mast cells. S-petasin inhibited the LPS induction of iNOS at the RNA and protein levels in mouse peritoneal macrophages. Furthermore, s-petasin inhibited the production of NO (the product of iNOS) in a concentration-dependent manner in the macrophages. Furthermore, in an LPS-induced mouse model of peritonitis, s-petasin significantly inhibited the accumulation of polymorpho nuclear and mononuclear leukocytes in peritoneal cavity. This study shows that s-petasin in Petasites genus has therapeutic effects on allergic and inflammatory diseases, such as, asthma and peritonitis through degranulation inhibition in mast cells, suppression of iNOS induction and production of NO in macrophages, and suppression of inflammatory cell accumulation.

• 대한한방소아과학회지
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• 제32권3호
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• pp.1-15
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• 2018

Objectives Alismatis Rhizoma has been known to suppress inflammation and allergic reaction. However, the cellular target of Alismatis Rhizoma and its mechanism of action remain unclear. This study was designed to examine the effect of Alismatis Rhizoma extract (ALC) on the RBL-2H3 mast cells in vitro and on the OVA/alum sensitized mice ex vivo. Methods In the study, RBL-2H3 mast cells were cultured in minimal essential medium (MEM) for 24 hours, and treated separately with cyclosporin A and varying doses of ALC, and then stimulated with Phorbol 12-myristate 13-acetate (PMA) (50 ng/ml) and Ionomycin ($0.5{\mu}M$). The levels of IL-13, IL-4 were measured by ELISA analysis. The mRNA levels of IL-4, IL-5, IL-6, IL-13, GM-CSF, $TNF-{\alpha}$ were analyzed with Real-time PCR. Also, manifestations of MAPKs transcription factors and $NF-{\kappa}B$ p65 translocation were analyzed by western blotting in vitro. Subsequently, for ex vivo experiment, we induced allergic inflammation on Balb/c mice by OVA/alum and administered ALC orally. And we measured serum OVA-specific IgE level and IL-4, IL-13 in the splenocyte culture supernatant by ELISA analysis. Results ALC was shown to suppress mRNA expression of IL-4, IL-5, IL-6, IL-13, GM-CSF, $TNF-{\alpha}$, and to inhibit the IL-13, IL-4 production. Also ALC reduced an activation of mast cells specific signal MAPKs transcription factors and $NF-{\kappa}B$ p65 from the western blot analysis in in vitro experiment. In ex vivo, ALC oral adminstration decreased the level of OVA-specific IgE in serum, and IL-4, IL-13 in the splenocyte culture supernatant. Conclusions ALC is shown to reduce inflammation and allergic response by suppressing Th2 cytokines through the regulation of transcription factors MAPKs and $NF-{\kappa}B$ p65 in mast cells. Administration of ALC suppressed OVA-specific IgE in ovalbumin allergy model through the inhibition of Th2 cytokine. In conclusion, ALC can be considered as an effective treatment for allergic diseases such as atopic dermatitis.

• 동의생리병리학회지
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• 제17권6호
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• pp.1453-1462
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• 2003

In order to study the effect of oral administration of Mawhangyounpye-tang against to asthma, astham was induced to allergy-sensitive Balb/c mouse with ovalbumin using method of Hatfield et al (1997). The changes of diameter lumen of upper portion of the trachea, lung weight, gross appearance of lung, histological profiles of lung and trachea, numbers of cellular compartments in the bronchoalveolar lavage fluid (BALF), numbers and morphology of the mast cells in the trachea, numbers of mucus-secretory cell in the broncus, morphology of the bronchus, ultramicroscopical appearance of surface of trachea and number of cilia and mucous-secretory cells by scanning electron microscope. Obtained results were as follows. 1. The diameters of trachea lumen were significantly decreased in asthma induced control groups and these decreasing were result from hypertrophy of mucous membrane. However, these phenomena were dramatically recovered in the Mawhangyounpye-tang dosing groups. 2. Lung weights and black spots, which were result from infiltration of inflammatory cells, were significantly increased in asthma induced control groups but these phenomena were dramatically recovered in the Mawhangyounpye-tang dosing groups. 3. Hypertrophy of mucous membrane of trachea and bronchus and !bronchioles in the lung, peritracheal, peribronchus and peribronchiolar inflammatory cell infiltration, and mucoid exudate deposit in the lumen were observed in asthma induced control groups but these phenomena were dramatically recovered in the Mawhangyounpye-tang dosing groups. 4. Cellular compartments including neutrophil and eosinophil were dramatically increased in the BALF of asthma induced control groups but these phenomena were dramatically recovered in the Mawhangyounpye-tang dosing groups. 5. Mast cell degranulation and decreasing of the numbers of mast cells were detected in the trachea of asthma induced control groups. However, these phenomena were dramatically recovered in the Mawhangyounpye-tang dosing groups. 6. Shed, decreasing of cilia cell and increasing of mucous-secretory cells in the surface of the trachea of asthma induced control groups but these phenomena were dramatically recovered in the Mawhangyounpye-tang dosing groups. In conclusion, it Is considered that Mawhangyounpye-tang has somewhat favorable effect on the asthma because the asthma specific series of abnormalities in respiratory system were decreased after oral administratin of Mawhangyounpye-tang in this study. In future, it is needed that the toxicological and dosagespecific study of Mawhangyounpye-tang to use against asthma with safe.

• Toxicological Research
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• 제21권1호
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• pp.15-21
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• 2005

There is now a growing concern about the possible toxicity of heavy metals in cosmetics. Heavy metals can be used as cosmetic ingredients or may be present as low level impurities in some of the raw materials. Chromium derivatives are used as pigments in cosmetics. Chromium is essential and toxic trace elements. Chromium may cause skin allergy. However, the regulations related to cosmetic products give no limit values for Chromium. Hexavalent chromium is significantly more toxic than trivalent chromium. Hexavalent chromium may present a carcinogenic risk at high concentrations. Therefore, it is important to consider oxidation state of chromium when analyze chromium. The purpose of this study is to determine the concentrations of water-soluble trivalent and hexavalent chromium in samples of makeup products, and to assess the safety of cosmetics on the basis of animal sensitization tests using guinea pig. The present study of chromium in 48 makeup products of 12 manufacturers provides a basis for assessing safety of makeup products. Water-soluble hexavalent chromium was not detected in any product. Water-soluble trivalent chromium was detected in only 9 eye shadows out of 48 makeup products, and could not be quantified 3 out of 9 eye shadows. The highest level of water-soluble trivalent chromium was about 10 mg/kg in spite of 90,000 mg/kg of total chromium. The results of animal sensitization tests show that 200 mg/kg of trivalent chromium and 5 mg/kg of hexavalent chromium have no harmful effect. No cross-reaction among these metals was found. Accordingly, the concentrations of water-soluble chromium in makeup products seemed to be safe. The overall results indicate that chromium in cosmetics probably have no significant toxicological effects. However, It is necessary to set guidelines on the maximum permissible concentration of water-soluble chromium in cosmetics.

• 대한한방내과학회지
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• 제11권2호
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• pp.22-42
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• 1990

Sabaiksan has been prescribed to treat various allergic diseases in herbal medicine which were induced by various vasoactive amine released from the mast cells. The constituents of Sabaiksan are Mori Cortex Radices(MCR), Lycii Cortex Radicis(LCR) and Glycyrrhizae Radix(GR). Recently, simple models of compound 48/80 induced anaphylactic shock and cutaneous reaction in vivo were developed to test various agents employed in the field of allergy and toxicology research. The purpose of this study is to evaluate the effects of Sabaiksan on compound 48/80 induced anaphylactic stock, cutaneous reaction and mesenteric mast cell degranulation rate in ICR mice, and on compound 48/80 induced peritoneal mast cell degranulation and histamine release in vitro. Groups of ICR mice were intraperitoneally pretreated with $100{\mu}{\ell}$ of saline, $MCR(2g/m{\ell}),\;LCR(2g/m{\ell}),\;GR(g/m{\ell})$ or Sabaiksan itself(MCR+LCR+GR) at 24, 12 and 1 hour before compound 48/80 solution ($10{\mu}{\ell}/gm$ B. W) were peritoneally given into them, and then mortality within 72 hours after the compound 48/80 injection, and mesenteric mast cell degranulation rate at 15 minutes after compound 48/80 injection were calculated. In vitro experiment, $400{\mu}{\ell}$ of rat peritoneal mast cell suspension$(10^6cell/m{\ell})$ were pretreated with $50{\mu}{\ell}$ of saline, $MCR(2g/m{\ell}),\;LCR(2g/m{\ell}),\;GR(g/m{\ell})$ or Sabaiksan itself at room temperature for 30 minutes, and then $50{\mu}{\ell}$ of compound 48/80 solution $(100{\mu}g/m{\ell})$ were added into it. 30 minutes after the addition of compound 48/80 solution, histamine release assay in the supernatant of peritoneal mast cell suspension were performed employing radioisotope enzymatic assay and morphologic changes of mast cells in each regular time point were photographed. Compared with controls, compound 48/80 induced anaphylactic shock was significantly inhibited by MCR and GR pretreatment into the ICR mice. Significant inhibition of compound 48/80 induced cutaneous reaction, mesenteric mast cell degranulation rate in vivo and histamine release from the rat peritoneal mast cells in vitro was observed only in MCR pretreated group. From the above results, it is suggested that MCR component of Sabaiksan may playa key role to suppress mast cell function since it has been applied to various allergic diseases.

• Journal of Nutrition and Health
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• 제37권6호
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• pp.431-439
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• 2004

Scutellariae Radix (Scu.), one of the immune-regulatory substances, is recognized to play the role in the metabolic process of inflammation, allergy and immunity. It has been traditionally used in the Oriental medicine to treat inflammatory bowel diseases (IBD). The purpose of this study was to evaluate the effects of water extracts of Scutellariae Radix on the spleen lymphocyte immune function in the Balb/c female mice treated with dextran sodium sulfate (DSS) to induce colitis. Water extract of Scutellariae Radix (100 mg/kg) and sulfasalazine (50 mg/kg) were administrated orally for 2 weeks of experimental period. Mice were divided into three experimental groups randomly: DSS group (5％ DSS was ad libitum for 5 days) as control group, DSS ＋ Scu. (water extracts of Scutellariae Radix for 2 weeks after 5％ DSS was ad libitum for 5 days) as experimental group, and DSS ＋ Sulfasalazine group (Sulfasalazine for 2 weeks after 5％ DSS was ad libitum for 5 days) as positive control group. Levels of Ig A, Ig E, CD4$^{＋}$, CD8$^{＋}$, TNF-$\alpha$ and other cytokines were measured. Treatment of DSS for 5 days induced bowel inflammation and the treatment with Scu. water exteract and sulfasalazine significantly recovered the damage. The length of intestine of DSS group was significantly shorter than that of other groups. The serum and fecal concentration of Ig A of SS ＋ Scu group was higher than those of DSS group. The contents of CD4$^{＋}$ T cells was higher in the DSS ＋ Scu. group than the other groups and CD8$^{＋}$ T cells was the lowest in DSS ＋ Sulfasalazine group. The Ig A level of cultured supernatant of spleen lymphocyte was the highest, while the Ig E level was the lowest in SS ＋ Scu group. The concentration of TNF-$\alpha$, cytokine secreted from the Th1 cell in the supernatant spleen lymphocyte, was the highest in the DSS group and the lowest in the DSS ＋ Scu. group. The concentration of IFN-${\gamma}$ and ll...-12 was lower in the DSS ＋ Scu. group than those of the other groups. The concentration of IL-4 in the supernatant of spleen lymphocyte was the lowest in the DSS ＋ Scu. group but IL-10 was not significantly different. Based on these findings, water extract of Scutellariae Radix exhibited the inhibitory effect via IL-4 production thereby inhibited the production of Ig E and strengthened immune system, and alleviated injury in DSS- induced colitis mice model.

• 한국수산과학회지
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• 제14권3호
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• pp.122-129
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• 1981

적색육어류인 꽁치와 백색육어류인 삼치를 시료로하여 선도별에 따라, 또 제품별(일건품, 열풍건조품, 염장품)에 따라 histamine 함양의 소장에 대하여 비교 검토한 결과는 다음과 같다. 1. Histamine 생성은 꽁치가 삼치보다 훨씬 많았다(삼치의 약 60배). 2. 봉치는 초기 부패점(VBN 약 35mg/100g) 부근에서 histamine이 약 100mg/100g에 달하는 경향을 나타내 였다. 3. 제품별로 보면 꽁치, 삼치 모두 일건품일 때histamine양이 가장 많이 생성되었고, 염장품이 열풍건조품보다 다소 많은 경향을 보였으며 삼치의histamine양은 꽁치에 비하여 거의 무시될 정도의 양이었다.

• 한국안광학회지
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• 제10권1호
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• pp.41-46
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• 2005

본 연구의 목적은 양안에서 정상 단안시와 약시에서 P-VEP의 파형을 분석하였다. P-VEP는 3채널의 Nicolet system으로 기록하였다. 5명의 성인 피검자(남성 3인, 여성 2명: 평균 22세, 연령은 19세와 24 세 사이)를 기록하였다. 피검자는 전신건강, 약물복용, 유전, 알레르기 그리고 안질환을 포함하는 문진을 조사하였다. 시력과 입체시 검사는 각 피검자의 단안과 양안을 기록하였다. 피검자는 VEP 의 기록을 하는 동안 교정된 시력을 통해서 단안과 양안으로 P-VEP 자극을 본다. 연구의 결과 양안의 시력은 정상 단안 시력보다 좋은 것으로 나타났다. 입체시는 140초 이상을 가졌다. 한편 P-VEP 의 자극을 받은 단안 정상안은 양안으로 본 것과 비교해서 높은 진폭을 나타내었다. 그러나 약시의 파형은 정상 단안시와 양안시에 비해서 상당히 감소함을 가졌다. 결론적으로 본 연구에서는 시력검사에는 양안시가 정상 단안시에 비해서 좋은 시력을 나타내나, P-VEP 검사에서는 오히려 단안 정상 안이 양안에 비해서 높은 진폭을 나타내었다. 그러나 약시안은 시력과 P-VEP 모두 감소함을 나타내었다.

• Childhood Kidney Diseases
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• 제11권2호
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• pp.264-271
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• 2007

목 적 : 소아과 외래에서 흔히 접할 수 있는 질환 중 하나인 야뇨증의 진단을 위해서는 병력의 정보를 얻는 것이 중요하다. 그러나 한정된 외래진료 시간에 병력 청취가 쉽지는 않기 때문에 설문지를 이용하여 야뇨증 환아를 단일 증상 야뇨증군과 비단일증상 야뇨증군으로 분류하고 임상양상등을 비교하여 야뇨증의 병형별 진단 및 치료에 도움을 주고자 하였다. 방 법 : 2004년 1월부터 2005년 7월까지 영남대학교 의과대학 부속병원 소아과를 방문하여 야뇨증의 진단이후 첫 내원시 보호자의 동의하에 약물치료 전 약 2-3주의 야뇨일지를 관찰하는 동안 보호자가 환아의 배뇨 습관, 과거력, 치료에 대한 부모와 어린이의 자세 등을 포함한 설문지에 응답을 하여 설문지를 통한 병력청취가 이루어졌고, 이후 지속적인 치료 및 추적 관찰이 가능하였던 34명의 야뇨증 환아를 대상으로 하였다. 결 과 : 단일 증상성 야뇨증 환아는 21명, 비단일 증상성 환아는 13명이었으며, 발달 지연이 있었던 환아는 없었다. 환아 출생 시 분만법, 제대일수, 출생 시 체중, 형제 순서, 잠버릇, 변비, 치료성적에 따른 두 군의 차이는 없었다. 요로 감염의 빈도는 비단일 증상군에서 많았으며, 낮 동안 배뇨빈도와 알러지 병력은 비단일 증상군에서 높은 경향을 나타내었다. 전체 야뇨증 환아의 부모는 병원방문 전 전문 치료 방법으로 한방치료를 52.9%으로 가장 많이 이용하였으나 67.6%에서 효과가 없거나 빈도는 줄었지만 여전히 야뇨가 있다고 하였다. 결 론 : 병력 청취 설문지를 이용한 단일 증상군과 비단일증상군의 비교는 야뇨증 환아의 세부적 진단에 도움이 되며, 치료 방침을 결정하고 치료성적을 향상시키는데 유용한 자료로 기여할 것으로 기대된다. 또한 병원 방문 전 전문 치료로 한방 치료가 많이 선택되고 있어 부모들을 대상으로 야뇨증의 교육이 필요함을 알 수 있었다.