• Title/Summary/Keyword: IgY (Immunoglobulin Y)

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

  • Lee, In-Sil;Kim, Yun-Chung;Kim, Wha-Young;Kim, Sook-He;Hong, Young-Ja
    • Journal of Nutrition and Health
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    • v.16 no.3
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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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Preparation and Characteristics of Unsaturated PE Immunoliposome Incorporated with Ganglioside $G_{M1}$ (Ganglioside $G_{M1}$을 함유한 불포화 PE Immunoliposome의 제조와 특성)

  • Kim, Chang-Soo;Lee, Eun-Ok;Kim, Jong-Duk
    • Journal of Pharmaceutical Investigation
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    • v.21 no.3
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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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    • v.14 no.2
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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.

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

  • Park, Yang Joon;Koh, Dae Kyun;Oh, Jin Hee
    • Clinical and Experimental Pediatrics
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    • v.46 no.11
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    • pp.1139-1142
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    • 2003
  • Human parvovirus(HPV) B19 infection causes erythema infectiosum in children, sometimes red cell aplastic crisis with hemolytic anemia and chronic bone marrow failure in immunocompromised hosts. HPV B19 is directly cytotoxic for erythroid progenitor cells and inhibits erythropoiesis. Infrequently, HPV B19 inhibits hematopoiesis of three cell lineages and causes transient pancytopenia in patients with hemolytic disorders. We report three patients with hereditary spherocytosis who developed transient aplastic crisis. A HPV B19 infection was confirmed by IgM anti-B19 parvovirus titers and characteristic findings of bone marrow examination as the causative agent associated with severe pancytopenia. Three patients recovered spontaneously after a short period of supportive care with red cell transfusions and intravenous immunoglobulin.

Infection with Citrobacter rodentium in μMT Knockout Mice

  • Jo, Minjeong;Hwang, Soonjae;Rhee, Ki-Jong
    • Biomedical Science Letters
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    • v.24 no.1
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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.

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

  • Kim, Jae-Bum;Park, Nam-Hee;Choi, Sae-Young
    • Journal of Chest Surgery
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    • v.43 no.5
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    • pp.538-541
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    • 2010
  • Heparin-induced thrombocytopenia (HIT) is a clinicopathologic condition and adverse drug reaction caused by immunoglobulin G (IgG) antibodies directed against the heparin-platelet factor 4 complex. HIT with thrombosis (HITT) could lead to limb amputation, stroke, myocardial infarction, and death. We report on the successful management of a HITT patient with argatroban therapy.

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

  • Han, Ye ji;Lee, Sun Haeng;Lee, Jin Yong
    • The Journal of Pediatrics of Korean Medicine
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    • v.30 no.1
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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.

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

  • Choi, Jae Won;Oh, Seung Jung;Cho, Byung Soo;Cha, Sung Ho;Choi, Yong Mook
    • Pediatric Infection and Vaccine
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    • v.2 no.2
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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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Characteristics and application of monoclonal antibody to progesterone I. Production of monoclonal antibody to progesterone (Progesterone의 단크론성 항체에 관한 특성 및 활용에 관한 연구 I. 단크론성 항체의 생산)

  • Kang, Chung-boo;Kim, Yong-hwan
    • Korean Journal of Veterinary Research
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    • v.30 no.4
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    • pp.511-513
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    • 1990
  • Monoclonal antibody to progesterone was produced using the antigen $11{\alpha}$-hydroxyprogesterone hemisuccinate conjugated to bovine serum albumin. Hybridomas secreting antibody to progesterone were detected by radioimmunoassay and enzyme-linked immunosorbent assay and cloned in soft agar. Two stable monoclonal antibodies which were highly specific to progesterone were obtained, so it may be advantageously used to study on several physiological functions of progesterone including immunological research.

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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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    • v.12 no.4
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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.