• 한방안이비인후피부과학회지
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• 제19권2호
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• pp.1-18
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• 2006

Objective : Although management of asthma has become increasingly effective, its cure remains elusive, necessitating a new modality to prevent or eliminate causes triggering clinical progress. Based in the clinical experiences, a novel decoration Cheongsangbiyeum (CSB), has been developed to treat asthma, which consists of Polyporus, Semen Myristicae, Pericarpium citri Reticulatae, Rhizoma Cimicifugae, Cortex Albizziae, Fructus Rubi, Rhizoma Zedoariae, and Rhizoma Rhei. In the current study, its anti-asthmatic efficacy was evaluated using a mouse model of asthma. Methods : Experimental allergic asthma was induced by repeated intraperitioneal sensitization and intranasal challenge of ovalbumin (OVA). Water extract of CSB (1 mg/mouse/day) was administrated orally whereas control mice on given with identical volume of phosphate-buffered saline (PBS) for 5 days during the course of antigen challenge. When airway hyperreactivity(AHR) measured by ${\bata}-methacoline-induced$ airflow obstruction was compared, AHR of CSB-treated mice was significantly lower than those of control mice, indicating that CM extract can attenuate an asthmatic symptom. Airway recruitment of leukocytes and eosinophils was also markedly reduced by CSB treatment suggesting that oral treatment of CSB can alleviate the airway inflammation. For a better understanding of possible mechanisms underlying anti-asthmatic effet of CSB, cytokine (IL-4, IL-5, IL-13 and $IFN{\gamma}$ levels in bronchoalveola lavage fluid (BALF) and lung tissues were determined. Results : The results showed that cytokine levels were significantly lowered by CSB treatment. Additionally, number of draining lymph node cells was significantly lower than those of control mice. These data indicate that CSB suppress in vivo allergen-specific response. However, notably, levels of type 2 cytokines such as IL-5 and IL-13 were more profoundly influenced. Moreover, in vitro OVA-specific proliferative response and type 2 cytokine (IL-4, IL-5 and IL-13) production lymph node cells was markedly decreased in CSB-treated mice, whereas their $IFN{\gamma}$ production was not significantly altered Thrse data clearly showed a preferential inhibition of type 2 T cell (Th2) response by CSB treatment. This finding was also supported by serum antibody data showing that levels of OVA-specific type 2 antibodies, IgE and IgG1, in CSB-treated mice were significantly lower than in control mice, while type 1 antibody, IgG2a level m rather higher than controls, although the difference was in significant. Conclusions : In conclusion, oral administration of CSB attenuates asthmatic manifestations including AHR ad airway recruitment of eosinophils in a mouse model which possibly results from selective inhibition of Th2 cell response to allergen. Our data suggest a potential clinical application of CSB for control of allergic asthma.

• Journal of International Society for Simulation Surgery
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• 제1권1호
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• pp.32-36
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• 2014

Reconstruction of the maxilla is quite a difficult challenge for reconstructive surgeons. The maxilla is the most important part of the midface, which contributes to facial esthetics, mastication, swallowing, speech, supporting orbital contents and sinus function. Free fibular flap is most versatile to reconstruct jaw bone because of its adequate length, containing both soft and bony tissues and acceptance of dental implants. In this case report, a reconstruction of the maxilla using free fibular flap and dental implants is described in which rapid prototype was used before surgery to simulate the final prosthetic results.

• 한국동물위생학회지
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• 제42권4호
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• pp.257-264
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• 2019

Mastoparan V1 was used as adjuvant of formalin-inactivated Salmonella Gallinarum whole cells vaccine against fowl typhoid in a chicken model. The 75 brown nick chickens were equally divided into 5 groups, and all chickens of each group were immunized at 6 weeks of age (0 WPPI; weeks prime post immunization), and at 9 weeks of age (3 WPPI) (except group B). Group A chickens were intramuscularly (IM) inoculated with 500 uL of sterile phosphate-buffered saline (PBS), and group B chickens were subcutaneously immunized with 0.2 ml containing 5×10⁷ viable vaccine strain/bird. The chickens in groups C~E were IM inoculated with approximately 3×10⁹ cells/0.5 mL of formalin-inactivated the S. Gallinarum whole cells, approximately 3×10⁹ cells/0.5 mL of formalin-inactivated the S. Gallinarum whole cells with mastoparan V1 as adjuvant, and 0.5 mL of PBS, respectively. S. Gallinarum outer membrane proteins-specific serum IgG titers were considerably higher in groups B~D than in groups A and E. However, the levels of IFN-γ in groups B and D only than in groups A and E were significantly higher. Following oral challenge with virulent wild-type S. Gallinarum, no chicken in groups A (no challenge group) and B was dead, and only 30% of chickens in group D was dead. However, 70% of chickens in group C and all chickens in group E were dead after oral challenge. The results of this study demonstrated that IM immunization with approximately 3×10⁹ of the formalin-inactivated S. Gallinarum whole cells containing mastoparan V1 induced robust antibody and cell-mediated immune responses in chickens. The whole cells also conferred protection against infection with wild-type S. Gallinarum.

• 대한수의학회지
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• 제51권4호
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• pp.281-288
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• 2011

Lactobacillus salivarius JWS 58 (JWS 58) and Lactobacillus plantarum JWS 1354 (JWS 1354) are isolated from duck intestine and have ability to produce bacteriocin. The objective of this study was to evaluate the immunomodulatory effects of JWS 58 and JWS 1354. The nitric oxide (NO) and cytokines (IL-$1{\beta}$ and TNF-${\alpha}$) were measured in C57BL/6 mouse peritoneal macrophages to determine immune enhancing effects of JWS 58 and JWS 1354. A Listeria (L.) monocytogenes challenge mice model was used to evaluate immune enhancement ability of JWS 58 and JWS 1354 in vivo. The results showed that JWS 58 and JWS 1354 increased the production of NO or cytokines by peritoneal macrophages and that oral administration of viable probiotic strains in mice elicited the immuno-modulatory effect upon L. monocytogenes challenge. JWS 1354 showed stronger immune enhancing effects than JWS 58. Collectively, this study demonstrated that Lactobacillus strain JWS 58 and JWS 1354 possess immune enhancing effect. Furthermore, two stains are expected to use feed supplement to prevent diseases by pathogenic bacteria through releasing bacteriocin and enhancing host immune responses in animal.

• Journal of Microbiology and Biotechnology
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• 제28권1호
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• pp.65-76
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• 2018

Although there has been a steady increase in the prevalence of food allergies worldwide in recent decades, no effective therapeutic strategies have been developed. Modulation of the gut microbiota composition and/or function through probiotics has been highlighted as a promising target for protection against food allergies. In this study, we aimed to investigate the allergy-reducing effects of a probiotic mixture (P5: Lactococcus lactis KF140, Pediococcus pentosaceus KF159, Lactobacillus pentosus KF340, Lactobacillus paracasei 698, and Bacillus amyloliquefaciens 26N) in mice with ovalbumin (OVA)-induced food allergy. Administration of P5 significantly suppressed the oral OVA challenge-induced anaphylactic response and rectal temperature decline, and reduced diarrhea symptoms. Moreover, P5 also significantly inhibited the secretion of IgE, Th2 cytokines (interleukin (IL)-4, IL-5, IL-10, and IL-13), and Th17 cytokines (IL-17), which were increased in mice with OVA-induced food allergy, and induced generation of CD4+Foxp3+ regulatory T cells. These results revealed that P5 may have applications as a preventive agent against food allergy.

• 생물정신의학
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• 제10권2호
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• pp.107-115
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• 2003

Objective:The purpose of this study was to know about the mechanism of pathogenesis of type 2 diabetes mellitus by using of blood glucose, glucoregulatory factor, insulin resistance in schizophrenic patients receiving antipsychotics. Method:Modified oral glucose tolerance tests were performed in 20 schizophrenic patients receiving haloperidol, risperidone and olanzapine. Insulin, glucagon, C-peptide and cortisol were measured in 0, 15, 45, 75 minutes after glucose loading, and insulin resistance was calculated by HOMA(homeostasis model assessment) method. Result:Olanzapine-treated patients had significant glucose elevation 45 minutes after glucose challenge. Also modest increases in HOMA IR values were detected in patients treated with olanzapine. Conclusion:Olanzapine treatment of non-diabetic patients with schizophrenia can be associated with type 2 diabetes mellitus through the elevation of glucose and insulin resistance. Elevated insulin resistance may be a causative mechanism of type 2 diabetes mellitus in patients receiving olanzapine.

• 정보관리학회지
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• 제19권4호
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• pp.185-208
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• 2002

노인들을 위한 정보서비스는 우리나라 공공도서관의 새로운 도전이다. 공공도서관을 주체로 하는 인터넷기반 노인정보서비스를 개발하기 위하여 노인들의 정보원 정보요구 그리고 정보이용 현황을 조사하였다. 1060명의 노인에 대한 면접조사를 수행하여 분석한 결과, 노인들은 대중매체와 비공식 구두 커뮤니케이션을 선호하며, 요구정보는 건강의료, 뉴스, 취미, 종교, 레저여행의 순서로 나타났다. 23%에 해당하는 인터넷 이용 노인들의 활용현황과 인터넷 비이용자들의 장애요인을 식별하였다. 분석결과와 선행연구를 기초로 하여, 정보개발 참고봉사 인터페이스 교육 등으로 구성된 서비스 개발 모델과 협동운영방식을 제안하였고 향후 발전을 위한 문제점과 개선방안을 제시하였다.

• The Korean Journal of Physiology and Pharmacology
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• 제22권1호
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• pp.81-89
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• 2018

This study evaluated the anti-asthmatic activities of 2,6-di-tert-butyl-4-hydroxymethylphenol (DBHP) that is a potent phenolic antioxidant in edible vegetable oil. The effects of DBHP on bronchial asthma were evaluated by determining the specific airway resistance (sRaw) and tidal volume (TV) during the immediate asthmatic response (IAR) and the late-phase asthmatic response (LAR) in guinea pigs with aerosolized ovalbumin-induced asthma. Recruitment of leukocytes and the levels of biochemical inflammatory mediators were determined in the bronchoalveolar lavage fluids (BALFs), and histopathological surveys performed in lung tissues. DBHP significantly inhibited the increased sRaw and improved the decreased TV on IAR and LAR, and also inhibited recruitment of eosinophils and neutrophils into the lung, and release of biochemical inflammatory mediators such as histamine and phospholipase $A_2$ from these infiltrated leukocytes, and improved pathological changes. However, anti-asthmatic activities of DBHP at oral doses of 12.5 to 50 mg/kg was less than those of dexamethasone (5 mg/kg, p.o.) and cromoglycate (10 mg/kg, p.o.), but more potent or similar to that of salbutamol (5 mg/kg, p.o.). These results in the present study suggest that anti-asthmatic effects of DBHP in the guinea pigs model of OVA-induced asthmatic responses principally are mediated by inhibiting the recruitments of the leukocytes and the release of biochemical inflammatory mediators from these infiltrated leukocytes.

• Macromolecular Research
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• 제14권1호
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• pp.94-100
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• 2006

Although the peripheral nerve system has a relatively good regenerating capacity compared to the central nerve system, peripheral nerve repair remains a clinical challenge as restoration of normal nerve function is highly variable. Synthetic tubular nerve conduits were designed as an alternative repair method in order to replace the need for an isograft. These nerve conduits guide regenerating axons from the proximal toward the distal end, maintain within growth-promoting molecules released by the nerve stumps, and protect regenerating axons from infiltrating scar tissue. In this work, we prepared cinnamoylated alginate (CA)-collagen-chitosan nerve conduit using the lyophilization method to generate a controllable parallel channel in the center and then investigated its influence on peripheral nerve regeneration in an animal study. At 12 weeks after implantation, histological study showed that tissue cable was continuously bridging the gap of the sciatic nerve in all rats. Our newly developed nerve conduit is a promising tool for use in peripheral nerve regeneration and provides a suitable experimental model for future clinical application.

• 한방안이비인후피부과학회지
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• 제29권2호
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• pp.65-81
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• 2016

Objectives : Haedoksamul-tang (HSTE), a water extract from a mixture of Phellodendri Cortex, Coptidis, Scutellariae Radix, Gardeniae Fructus, Angelica acutiloba Radix, Cnidii Rhizoma, Paeoniae Radix, Rehmanniae Radix, has been traditionally used for allergic skin diseases such as atopic dermatitis and contact dermatitis in oriental countries. However, little is known about the effects of aqueous extract of HSTE on trimellitic anhydride (TMA)-induced contact hypersensitivity (CHS) in a mouse model. Methods : In this study, we investigate the pharmacological effects of HSTE on TMA-induced CHS in Balb/c mice. Contact hypersensitivity was induced in mice by topically sensitizing and challenging with TMA in flank skin and ears during oral administration (for 17 days) and topical treatment (30 min before challenge) with HSTE. We examined the effects of HSTE on IgE and IgG1 levels, inflammatory parameters in ear tissues, CD4⁺/CD8⁺ ratio, cytokine and chemokine production in sera, tissues, and immune cells from TMA-sensitized mice.Results : Oral and topical administration with HSTE reduced, in a dose dependent manner, thickness and leukocyte infiltration of ear tissues and IgE levels in serum from mice sensitized with TMA. In addition, auricula lymph node cells isolated from TMA-sensitized mice significantly elevated the expression ratio of CD4⁺/CD8⁺ as well as increased the production of IL-4, IL-5, IL-13 and IFN-γ by ex vivo stimulation with antibodies against CD3 and CD28, and these inflammatory indexes, except for IFN-γ, were significantly suppressed by orally and topically administration of HSTE. Furthermore, stimulation of auricula lymph node cells from TMA-sensitized mice with antibodies against CD3 and CD28 increased the production of MCP-1/CCL2 and MIP-1α/CCL3, and these effects were inhibited in a dose-dependent manner in cells from mice treated with HSTE. Conclusions : These results suggest that HSTE can be used for treating contact hypersensitivity by inhibiting leukocyte infiltration as well as production of serum IgE and chemokine/Th2 cytokine in an animal model.