• 제목/요약/키워드: IgY (Immunoglobulin Y)

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6세미만 도시 주변거주 어린이의 면역능력에 따르는 영양상태 판정에 관한 연구 (A Survey of Nutritional-Immunologic Interactions in the Children Under 6 Years Old in the Suburbs of Seoul)

  • 이인실;김연중;김화영;김숙희;홍영자
    • Journal of Nutrition and Health
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    • 제16권3호
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    • pp.193-199
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    • 1983
  • Clinical and epidemiologic data point to a causal interrelationship between nutritional deficiency and infectious illness. Both are major contributors to childhood morbidity and mortality, particulary in underprivileged population groups. Protein-calorie malnutrition depress a variety of immune funtions. Delayed hypersensitivity and number of T-lymphocytes are consistently reduced. The interrelationship between nutritional status and immune response was studied in 80 children aged under 6 years. According to the anthropometric assessment based on weight for height for age, 36 children were classified as normal, 22 as morderate malnutrition, and 22 as severe malnutrition. The following determinations were made : hemeglobin, hematocrit, serum albumin, immunoglobulin G, complement 3, and WBC levels. Results indicate that levels of Hb, Hct, serum albumin, and C3 concentration were decreased in moderate and severe malnutrition children. However, levels of IgG and WBC were not affected by the nutritional status. It is suggested that nutritional status has more profound effects on complement system than humoral immunity.

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Ganglioside $G_{M1}$을 함유한 불포화 PE Immunoliposome의 제조와 특성 (Preparation and Characteristics of Unsaturated PE Immunoliposome Incorporated with Ganglioside $G_{M1}$)

  • 김창수;이은옥;김종득
    • Journal of Pharmaceutical Investigation
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    • 제21권3호
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    • pp.161-170
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    • 1991
  • The storage stabilities of immunoliposomes incorporated with variable amounts of ganglioside $G_{M1}$ were investigated as a function of time. temperature. and composition by observing absorbance of visible light and calcein release. In the column chromatographe, the layer of unsaturated PE(dioleoylphosphatidylethanolamine : DOPE). unable to form stable liposomes at physiological temperature and pH, were formed when palmitoyl-immunoglobulin G(IgG) $(2.5{\times}10^{-4}\;mol/DOPE\;mol)$ added. The incorporation of ganglioside $G_{M1}$ into immunoliposome. enhanced the stabilities of bilayers during the extended period of storage. The turbidities of immunoliposomes coated with ganglioside $G_{M1}$ exhibited the maximum near 20 mol% $G_{M1}/DOPE$ mol. probably because of the disturbance of the bilayer characteristics, i.e., layer transition or reorientation of interaction sites. At low temperature. the higher stability was achieved than at elevated temperatures. After one week of storage. the redispersed liposomal solutions at lower temperatures maintained the original elution patterns in chromatography but broader distribution at elevated temperatures. During the storage, it is suggested the aggregation is the more dominant phenomena for liposomes kept at $5^{\circ}C$ than the fusion. while he fusion is at elevated temperatures.

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HVEM is a TNF Receptor with Multiple Regulatory Roles in the Mucosal Immune System

  • Shui, Jr-Wen;Kronenberg, Mitchell
    • IMMUNE NETWORK
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    • 제14권2호
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    • pp.67-72
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    • 2014
  • The herpes virus entry mediator (HVEM) is a member of the tumor necrosis factor receptor superfamily (TNFRSF), and therefore it is also known as TNFRSF14 or CD270 (1,2). In recent years, we have focused on understanding HVEM function in the mucosa of the intestine, particularly on the role of HVEM in colitis pathogenesis, host defense and regulation of the microbiota (2-4). HVEM is an unusual TNF receptor because of its high expression levels in the gut epithelium, its capacity to bind ligands that are not members of the TNF super family, including immunoglobulin (Ig) superfamily members BTLA and CD160, and its bi-directional functionality, acting as a signaling receptor or as a ligand for the receptor BTLA. Clinically, Hvem recently was reported as an inflammatory bowel disease (IBD) risk gene as a result of genome wide association studies (5,6). This suggests HVEM could have a regulatory role influencing the regulation of epithelial barrier, host defense and the microbiota. Consistent with this, using mouse models, we have revealed how HVEM is involved in colitis pathogenesis, mucosal host defense and epithelial immunity (3,7). Although further studies are needed, our results provide the fundamental basis for understanding why Hvem is an IBD risk gene, and they confirm that HVEM is a mucosal gatekeeper with multiple regulatory functions in the mucosa.

Parvovirus B19 감염으로 발생된 Aplastic Crisis 3례 (Aplastic Crisis Secondary to Parvovirus B19 Infection)

  • 박양준;고대균;오진희
    • Clinical and Experimental Pediatrics
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    • 제46권11호
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    • pp.1139-1142
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    • 2003
  • 저자들은 유전성 구상적혈구증으로 추적 관찰 중인 7세 남아와 용혈성빈혈의 기왕력이 없던 11세, 8세 환아가 심한 범혈구 감소증으로 내원하여 parvovirus B19 감염에 의한 골수무형성 위기로 진단하고 수혈 및 정주용 면역글로불린으로 1-2주만에 모두 호전된 유전성 구상적혈구증 환아 3례를 보고하는 바이다.

Infection with Citrobacter rodentium in μMT Knockout Mice

  • Jo, Minjeong;Hwang, Soonjae;Rhee, Ki-Jong
    • 대한의생명과학회지
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    • 제24권1호
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    • pp.1-8
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    • 2018
  • ${\mu}MT$ knockout mice are genetically deficient in the transmembrane domain of mu chain of the immunoglobulin M (IgM) heavy chain, resulting in the absence of mature B cells. ${\mu}MT$ knockout mice is an in vivo model system used to clarify the role of B cells in various diseases. Enteropathogenic Escherichia coli (EPEC) induces acute and chronic diarrheal disease, especially in children of developing countries. The formation of attaching and effacing (A/E) lesion is a prominent pathogenic factor in the intestinal epithelium of EPEC infection. The A/E lesion is modulated by genes located on the pathogenic island locus of enterocyte effacement (LEE) which encode a type III secretion system (T3SS) and A/E lesion-related effector proteins. Citrobacter rodentium is a murine pathogen utilized in studying the pathogenic mechanisms of EPEC in human infections. Citrobacter rodentium produce A/E lesion to attach to intestinal epithelium, thus providing a murine model pathogen to study EPEC. Several studies have investigated the pathogenesis of Citrobacter rodentium in the ${\mu}MT$ knockout mice. In this review, we introduce the ${\mu}MT$ murine model in the context of C. rodentium pathogenesis and describe in detail the role of B cells and antibodies in this disease.

대동맥 박리증 수술 후 발생한 혈전증을 동반한 헤파린 기인성 혈소판 감소증의 치료 (The Management of Heparin-induced Thrombocytopenia with Thrombosis That Developed after Aortic Dissection Surgery)

  • 김재범;박남희;최세영
    • Journal of Chest Surgery
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    • 제43권5호
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    • pp.538-541
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    • 2010
  • 헤파린 기인성 혈소판 감소증은 헤파린과 혈소판 제4인자 사이의 복합체에 대항하여 만들어진 면역글로불린-G 항체에 의해 발생한 약물 부작용이라고 할 수 있다. 혈전증을 동반한 헤파린 기인성 혈소판 감소증은 사지 절단이나 뇌졸증, 심근경색과 같은 병을 일으켜 사망에 이르게 할 수 있다. 저자들은 혈전증을 동반한 혈소판 감소증을 agatroban을 사용하여 성공적으로 치료하여 보고하는 바이다.

두드러기의 침치료에 대한 최근 임상 연구 동향 (Recent Clinical Research on Effect of Acupuncture for Urticaria)

  • 한예지;이선행;이진용
    • 대한한방소아과학회지
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    • 제30권1호
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    • pp.22-31
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    • 2016
  • Objectives The purpose of this study is to investigate recent clinical studies on the effect of acupuncture for urticaria worldwide. Methods Based on the PubMed search with the key search terms of 'urticaria, acupuncture', dated between 2002 to 2015, a total of 9 randomized controlled trials (RCTs), 3 case series, and 2 case reports have been found, and were analyzed. Results and conclusions 1. The most commonly used acupoints were Quchi (LI 11), Xuehai (SP 10), Zusanli (ST 36), Sanyinjiao (SP 6), Dazhui (GV 14). 2. The most commonly used meridians were The Ren Channel, The Du Channel and The Gall Bladder Meridian of Foot-Shaoyang. 3. The treatment period varied from 12 days to 3 months. 4. Acupuncture treatment found to be significantly more or equally effective than the western medicine. 5. More clinical studies are needed to prove a true effectiveness of the acupuncture for urticaria. In case of laboratory tests, serum immunoglobulin E (IgE), interleukin 4 (IL-4) and Helicobacter pylori negative rate might be helpful.

폐렴 구균 농흉으로 수술적 치료까지 받은 범저감마글로불린혈증 1례 (A Case of Panhypogammaglobulinemia in Patient with Pneumococcal Empyema)

  • 최재원;오승정;조병수;차성호;최용묵
    • Pediatric Infection and Vaccine
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    • 제2권2호
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    • pp.194-199
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    • 1995
  • Most boys afflicted with panhypogammaglobulinemia, also known as X-linked agammaglobulinemia, remain healthy during the first 6 to 12 months of life because of protection by maternally transmitted IgG antibodies. Thereafter, they repeatedly acquire infections with high-grade pathogens, such as pneumococci, streptococci, and hemophilus unless given antibiotics or immunoglobulin replacement therapy. We experienced a case of panhypogammaglobulinemia in a 4 years old boy. He had been suffered from recurrent upper respiratory tract infection, otitis media and pneumonia since late infancy. He was admitted due to right pleural effusion with pneumonia, and streptococcus pneumoniae was isolated from pleural fluid and blood cultures. His immune status revealed panhypogammaglobulinemia and deficiency in mature B lymphocyte. He was treated with appropriate antibiotics therapy, but showed poor responses. He was transferred to department of thoracic surgery, and received minithoracotomy (decortication) operation. He was successfully treated with operation, antibiotics, and IV gammaglobulin infusions. Now he is being followed with periodic IV gammaglobulin replacement therapy.

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Progesterone의 단크론성 항체에 관한 특성 및 활용에 관한 연구 I. 단크론성 항체의 생산 (Characteristics and application of monoclonal antibody to progesterone I. Production of monoclonal antibody to progesterone)

  • 강정부;김용환
    • 대한수의학회지
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    • 제30권4호
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    • pp.511-513
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    • 1990
  • $11{\alpha}$-hydroxyprogesterone hemisuccinate-BSA를 항원으로 하여 항원량을 $50{\mu}g/head$$100{\mu}g/head$의 2 group(세마리씩)으로 나누어 BALB/c mouse에 면역첩종한 결과 후자에서 항체가의 상송이 확인되었다. 이와 동시에 항원($20{\mu}g$)과 adjuvant의 비율을 1:9로 하여 장기 접종한 결과는 $100{\mu}g$투여시 보다 항체가가 낮았다. 항체가가 확인된 clone의 culture에 의해 progesterone 단일크론 hybridoma를 생산해 이의 supernatant에 대한 분석을 실시한 결과 immunoglobulin class는 IgM이었다. progesterone 이외의 다른 steroids와의 교차반응은 매우 낮았다.

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Phellinus baumii Inhibits Immediate-type Allergic Reactions

  • Shin, Tae-Yong;Shin, Hye-Young;Kim, Sang-Hyun;Kim, Dae-Keun;Chae, Byeong-Suk;Oh, Chan-Ho;Cho, Moon-Gu;Oh, Suk-Heung;Kim, Jong-Hwa;Lee, Tae-Kyoo;Park, Jeong-Suk;Kim, Sang-Yong
    • Natural Product Sciences
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    • 제12권4호
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    • pp.232-236
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    • 2006
  • In this study, we investigated the effect of Phellinus baumii (PB) on immediate-type allergic reaction and inflammatory cytokine secretion. PB inhibited compound 48/80-induced systemic reactions in mice. PB inhibited compound 48/80-induced plasma histamine release. In addition, PB also inhibited the immunoglobulin (Ig) E-mediated local allergic reaction. Furthermore, PB decreased the phorbol 12-myristate 13-acetate plus calcium ionophore A23187-stimulated tumor necrosis $factor-\alpha$ and interleukin-6 secretion in human mast cells. These results indicate that PB may be beneficial in the treatment of immediate-type allergic reactions.