• 제목/요약/키워드: Allergic Reactions

검색결과 298건 처리시간 0.025초

Morphological characteristics of major airborne pollen in Korea peninsula

  • Moon, Hye-Kyoung;Kong, Min-Jung;Song, Jun-Ho;Kim, Sun-Yu;Kim, Jin-Suk;Jung, Eun-Hee;Park, Chan-Ho;Lee, Byoung-Yoon;Hong, Suk-Pyo
    • Journal of Species Research
    • /
    • 제4권2호
    • /
    • pp.159-168
    • /
    • 2015
  • Although airborne pollen is invisible to the eye, it has been known as a major source to respiratory allergic reactions. For this reason, airborne pollen is monitoring in many countries to predict pollen concentration based on locality and season. However, the morphological characteristics of airborne pollen and their potential tendency as an allergen are still obscure. In the present study, we selected 52 airborne pollen samples based on previously reported data and investigated their detail pollen characteristics using LM and SEM. Major airborne pollen in Korea has sorted in 19 families (most angiosperms except four gymnosperm families), and all pollen grains are small to medium in size ($P=17.34-49.86{\mu}m$) apart from the bisaccate pollen grains of Pinaceae ($P=46.49-106.20{\mu}m$). The aperture number and shape vary from sulcate to polyporate. While the inaperture pollen has found only in gymnosperm (Cupressaceae and Taxaceae), triporate or polyporate is common pollen type in angiosperm. The sexine ornamentations could divide into several types, but the most sculpturing types are inconspicuous like psilate, rugulate and granulate. Reticulate pollen grains as a semitectum have occurred the species of genera Platanus and Fraxinus only. To estimate the possible relationships between pollen features and allergen, the results are discussed in botanical context.

석류 추출물에 의한 인간호염구(KU812F 세포)의 탈과립 억제효과 (Inhibitory Effects of Punica granatum L. Extracts on Degranulation in Human Basophilic KU812F Cells)

  • 박경태;심선엽;전순실
    • 한국식품과학회지
    • /
    • 제40권6호
    • /
    • pp.702-706
    • /
    • 2008
  • 석류는 항당뇨, 항암, 항산화, 항미생물 및 항염증 효과와 같은 다양한 생리적 특성을 가지고 있다. 석류의 씨, 껍질 및 즙의 메탄올 추출물의 항알레르기 활성을 조사하기 위해, 인간 호염구인 KU812F 세포에 있어, A23187로 유도된 탈과립에 있어 저해효과를 검토하였다. 세포를 각각의 추출물로 처리하여, A23187로 자극한 후, 세포 내 칼슘농도, ${\beta}$-hexosaminidase 및 히스타민 함량을 조사하였다. 각각의 석류 추출물은 A23187에 의해 유도된 세포 내 칼슘 농도, 히스타민 및 ${\beta}$-hexosaminidase 유리를 농도 의존적으로 감소시켰다. 이러한 결과는 석류 추출물은 알레르기 반응에 있어 칼슘 유입의 억제를 통한 탈과립의 강력한 저해제로서의 가능성을 제시하고 있다.

식품에서 땅콩 성분의 신속검출을 위한 PCR 방법 (A PCR Method for Rapid Detection of Peanut Ingredients in Food)

  • 이수진;윤장호;홍광원
    • 한국식품과학회지
    • /
    • 제41권3호
    • /
    • pp.350-353
    • /
    • 2009
  • 땅콩(Arachis hypogaea)은 예민한 사람들에게 심한 알레르기를 일으킬 수 있다. Agglutinin은 땅콩에서 알레르기 유발 단백질의 하나로 알려져 있다. 식품중의 땅콩성분을 검출하기 위하여 agglutinin 유전자에 특이적인 primer pair를 이용하는 polymerase chain reaction(PCR) 방법을 개발하였다. PCR 반응은 땅콩에서 agglutinin DNA의 특정부분을 증폭시켰으나 11종의 다른 견과류, 두류 및 곡류(피스타치오, 아몬드, 해바라기씨, 잣, 호두, 대두, 검은콩, 강낭콩, 팥, 백미, 흑미)에 대해서는 반응하지 않았다. 이 PCR 방법으로 땅콩성분이 함유된 6종의 가공식품을 모두 확인할 수 있었으며 땅콩이 구성성분으로 표시되지 않은 13종의 다른 가공식품에 대해서는 모두 음성반응을 나타냈다. 본 방법은 정제된 땅콩 DNA를 100 pg까지 검출할 수 있었으며 대두 DNA에 땅콩 DNA가 0.1%까지 혼합된 경우도 검출이 가능하였다.

품종에 따른 콩의 알레르기성 (Allergenicity of Soybeans Depending on Their Variety)

  • 손대열;김예진
    • 한국식품과학회지
    • /
    • 제42권5호
    • /
    • pp.627-631
    • /
    • 2010
  • 국내에서 소비되는 콩 14품종에 대한 항원성 검사를 토끼에서 생산된 다클론 항체와 콩 알레르기 환자 혈청을 이용하여 검사하였다. 그 결과 콩 특이성을 갖는 다클론 항체를 이용한 연구에서는 일부 콩 품종에서 항원성을 나타내는 단백질이 추가적으로 존재하거나 결여된 것을 확인할 수 있었으며, 14품종 중 특히 진품콩에서는 다른 품종보다 항원성이 강한 단백질이 확인되었다. CAP검사에 의해 콩 항원에 대한 특이 항체 값이 65 U/mL 이상인 콩 알레르기 환자 4명의 혈청을 이용한 반응성 비교에서는 다른 품종에 비해 단백콩과 신팔달2호에서 조사된 모든 콩 알레르기 환자혈청과 상대적으로 뚜렷이 높은 반응성을 나타냈고, 대원콩에서 제일 낮은 반응성을 나타냈다. 이러한 결과는 콩 품종에 따라 포함된 단백질의 알레르기성 차이가 있음을 의미하며 콩을 원료로 식품을 제조할 때 콩 품종을 고려함으로써 알레르기 반응으로 인한 문제를 줄일 수 있는 가능성을 제시한다.

Whitening Effect of Watersoluble Royal Jelly from South Korea

  • Han, Sang Mi;Kim, Jung Min;Hong, In Phyo;Woo, Soon Ok;Kim, Se Gun;Jang, Hye Ri;Park, Kwan Kyu;Pak, Sok Cheon
    • 한국축산식품학회지
    • /
    • 제35권5호
    • /
    • pp.707-713
    • /
    • 2015
  • Royal jelly has been widely used as a health supplement worldwide. However, royal jelly has been implicated in allergic reactions, and we developed a water-soluble royal jelly (WSRJ) without the allergy inducing protein. In this study, we aimed to identify the anti-melanogenic efficacy of WSRJ. B16F1 melanoma cells were first treated with 10 nM α-melanocyte stimulating hormone (α-MSH) and then with various doses of WSRJ. In addition, we investigated the mRNA and protein expression of melanogenesis-related genes such as tyrosinase, tyrosinase related protein-1 (TRP-1) and TRP-2 by reverse transcription-polymerase chain reaction and western blotting. WSRJ directly inhibited tyrosinase and cellular tyrosinase activity, which decreased melanin synthesis in α-MSH stimulated B16F1 melanoma cells a level comparable to that observed with arbutin. WSRJ decreased the mRNA and protein expressions of tyrosinase, TRP-1, and TRP-2, which was comparable to that observed with arbutin. WSRJ has strong anti-melanogenic activity, which invoice direct inhibition of tyrosinase enzyme activity and suppression of expression of melanogenesis related genes. Results from this study suggests that WSRJ is a potential candidate for the treatment of skin pigmentation.

Platelet rich fibrin in the management of established dry socket

  • Chakravarthi, Srinivas
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
    • /
    • 제43권3호
    • /
    • pp.160-165
    • /
    • 2017
  • Objectives: Dry socket may occur secondary to the removal of any tooth. However, most dry socket cases develop in the third molar region. Dry socket is multifactorial in nature and has been treated using various modalities with varying success rates. This study assessed the efficacy of platelet rich fibrin (PRF) in established dry socket. Materials and Methods: Ten patients of either sex aged from 41 to 64 years with established dry socket according to established criteria were treated using PRF. Evaluation was performed by observing the reduction of pain using visual analogue scale, analgesic tablet use over the follow-up period, and healing parameters. Results: Pain was reduced on the first day in all patients with decreased analgesic use. Pain was drastically reduced during follow-up on the first, second, third, and seventh days with a fall in pain score of 0 to 1 after the first day alone. The pain scores of all patients decreased to 1 by the first day except in one patient, and the scores decreased to 0 in all patients after 48 hours. Total analgesic intake ranged from 2 to 6 tablets (aceclofenac 100 mg per tablet) over the follow-up period of 7 days. Healing was satisfactory in all patients by the end of the seventh day. Conclusion: PRF showed early pain reduction in established dry socket with minimal analgesic intake. No patients had allergic reactions to PRF as it is derived from the patient's own blood. PRF showed good wound healing. Our study suggests that PRF should be considered as a treatment modality for established dry socket.

Anti-IgE mAb Suppresses Systemic Anaphylaxis through the Inhibitory IgG Receptor Fc ${\gamma}$ RIIb in Mice - Interaction between Anti-IgE and Fc ${\gamma}$ RIIb -

  • Kang, Nam-In;Jin, Zhe-Wu;Lee, Hern-Ku
    • IMMUNE NETWORK
    • /
    • 제7권3호
    • /
    • pp.141-148
    • /
    • 2007
  • Background: Anti-IgE mAb which binds circulating but not receptor-bound IgE has been shown to be effective in treatment for asthma and other allergic diseases. However, the mechanisms by which anti-IgE mAb influences the pathophysiological responses are remained to be illustrated. This study was undertaken to examine the therapeutic efficacy of non-anaphylactogenic anti-mouse IgE mAb using murine models of IgE-induced systemic fatal anaphylaxis. Methods: Active systemic anaphylaxis was induced by either penicillin V(Pen V) or OVA and passive systemic anaphylaxis was induced by either anaphylactogenic anti-mouse IgE or a mixture of anti-chicken gamma globulin (CGG) IgG1 mAb and CGG. The binding of the Fc portion of anti-IgE to CHO-stable cell line expressing mouse Fc ${\gamma}$ RIIb was examined using flow cytometry. Fc fragments of anti-IgE mAb were prepared using papain digestion. The expression of phosphatases in lungs were assessed by Western blotting and immunohistochemistry. Results: Anti-IgE mAb prevented IgE- and IgG-induced active and passive systemic fatal reactions. In both types of anaphylaxis, anti-IgE mAb suppressed antigen-specific IgE responses, but not those of IgG. Anti-IgE mAb neither prevented anaphylaxis nor suppressed the IgE response in Fc ${\gamma}$ RIIb-deficient mice. The Fc portion of anti-IgE mAb was bound to murine Fc ${\gamma}$ RIIb gene-transfected CHO cells and inhibited systemic anaphylaxis. Anti-IgE mAb blocked the anaphylaxis-induced downregulation of Fc ${\gamma}$ RIIb-associated phosphatases such as src homology 2 domain-containing inositol 5-phosphatase (SHIP) and phosphatase and tensin homologue deleted on chromosome ten (PTEN). Conclusion: Anti-IgE mAb prevented anaphylaxis by delivering nonspecific inhibitory signals through the inhibitory IgG receptor, Fc ${\gamma}$ RIIb, rather than targeting IgE.

實驗動物모델에서 金黃散의 急性 皮膚 疾患에 對한 抗알레르기 效果 (The Anti-allergic Effects of Kum-Hwang-San on Acute Cutaneous Dise ases in Experimental Animal Models)

  • 이관순;김종한;황충연;임규상
    • 한방안이비인후피부과학회지
    • /
    • 제11권1호
    • /
    • pp.40-53
    • /
    • 1998
  • Mast cells play an important role in the pathophysiologlcal changes observed in acute cutaneous and inflammatory diseases In order to see whether Kum-Hwang-San has an influence on mast cell- mediated immediate cutaneous reactions, the author has undertaken an animal study. Ears of mice were treated with a compound 48/80 solution topically at 30 min after the cutaneous application of Kum-Hwang-San. At each point, an ear swelling response was measured with a digimatic thickness micrometer. Ear swelling response induced by compound 48/80 was significantly suppressed dose-dependently by Kum-Hwang-San 30 min before topical application as compared with that in nonapplicated control mice, and the value returned to normal levels by 120 min. Compound 48/80- induced mast cell degranulation by Kum-Hwang-San was also remarkably decreased in accordance with the suppression in ear swelling response. Kum-Hwang-San dose-dependently inhibited histamine release from the rat peritoneal mast cells activated by compound 48/80. Another way to test acute cutaneous reaction is to induce passive cutaneous anaphylactic reaction. Kum-Hwang-San significantly inhibited passive cutaneous anaphylactic reaction activated by anti-dinitrophenyl IgE on both topical application and intradermal injection. Kum-Hwang-San also inhibited histamine release from the rat peritoneal mast cells induced by anti-DNP IgE. This study provides evidence that Kum-Hwang-San will be beneficial in the treatment of acute cutaneous diseases.

  • PDF

한반도 지역에서 관측된 꽃가루 농도 특성에 관한 연구 (Characteristics of Regional Distribution of Pollen Concentration in Korean Peninsula)

  • 박기준;김헌애;김규랑;오재원;이선영;최영진
    • 한국농림기상학회지
    • /
    • 제10권4호
    • /
    • pp.167-176
    • /
    • 2008
  • Airborne pollen is known as one of the major causal agents to respiratory allergic reactions. Daily number of pollen grains was monitored using Burkard volumetric spore traps at seven locations including Seoul and Jeju during 1997-2007. Pollen grains were observed throughout the year especially from February to November. They showed similar distribution patterns of species among locations except in Jeju, where Japanese cedar vegetation is uniquely found. Peak seasons for pollen grains from trees and weeds were March to May and August to October, respectively. Tree pollens were mainly composed of pine, oak, alder, and birch. Weed pollens were mainly from Japanese hop, Worm wood, and ragweed. Diameter of pollen grains, which has a typical range of $20{\sim}60{\mu}m$, has close relationship with allergenicity. Allergenicity of tree and weed pollens is higher than that of grass pollens in general. In the case of trees and shrubs, pine trees account for about 70% of all tree pollens. However, pine pollens are weak allergens. The remaining 30% of tree pollens, including alder trees, white birches, and oaks, are moderate to strong allergens despite the smaller numbers. Grass and weeds are also highly likely to cause allergies. Especially, the pollens of Wormwood and Japanese hop are highly likely to cause allergies. Daily fluctuations in the number of pollens have to do with a variety of meteorological factors, such as temperature and rainfall.

생료사물탕(生料四物湯)이 DNCB로 유발된 생쥐의 아토피 피부염에 미치는 영향 (Effects of SaengRyo-SaMul-tang on Atopic Dermatitis Induced by DNCB in Mice)

  • 김지수;최정화;김종한;정민영;박수연
    • 한방안이비인후피부과학회지
    • /
    • 제30권1호
    • /
    • pp.87-105
    • /
    • 2017
  • Objectives : Atopic Dermatitis (AD) is chronic skin disease characterized by allergic hypersensitivity reactions. Saeng-ryo-Samul-tang (SRSM) can treat skin disease by cooling down blood heat, cealering away congenital fever and detoxicating. This study was conducted to investigate the effects of SRSM on AD induced by 2,4-dinitrochlorobenzene (DNCB) in mice Methods : In this study, the effects of SRSM on changes in body weights, thicknesses of dorsum skin, thicknesses and weights of ear, changes of symptoms on the dorsum skin, histopathological degree of ear and dorsum skin, IL-10 and $TNF-{\alpha}$ in serum were observed. And the effects on the proliferation rates of splenocytes were also investigated in vivo and in vitro study. Results : In SRSM topical application (Topical) group, SRSM oral application (Oral) group and SRSM Combination (Combi) group thickness of dorsum skin decreased significantly. But in TPC, ORL and CBN group, weight of ear didn't show any changes, but thickness of ear decreased significantly. And TPC, ORL and CBN group showed meaningful effectiveness symptoms like desquamation and erythema on AD's clinical espect. In histopathological observation, spongiosis, edema and inflammatory cell infiltration of epidermal were remarkably diminished in TPC, ORL and CBN group. And SRSM diminished the proliferation rates of splenocytes in vivo and vitro study. Conclusions : The present study suggests that SRSM can significantly reduced symptoms of AD, therefore SRSM is effective to treatment of AD.