Although chronic and recurrent rhinosinusitis is prevalent in children, little is known about its causes. Here, we investigated the humoral immunity in children with chronic or recurrent rhinosinusitis. We examined 16 children attending the outpatient clinic at the CHA Bundang Medical Center including 11 boys and 5 girls, aged 3.11 years (mean age, 5.6 years), who had rhinosinusitis for >3 months... |
The purpose of this study was to evaluate the immune response to serotype 19A in children aged 12-23 months after immunization of the 19F containing 7-valent pneumococcal conjugate vaccine (PCV7). Blood samples from a total of 45 subjects (age 12-23 months) were included in the study. Subjects were categorized according to immunization status into three groups as follows: 18 subjects with... |
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Pertussis is an acute respiratory infection characterized by paroxysmal cough and inspiratory whoop for over 2 weeks. The incidence of pertussis has decreased markedly after the introduction of DTwP/DTaP vaccine, but the incidence of pertussis has increased steadily among young infant and among adolescents and adults in many countries. Td vaccine was used in this age group but the increase... |
Enterovirus 71 (EV71) has been recognized as a frequent cause of epidemics of hand-foot-and-mouth disease (HFMD) associated with severe neurological symptoms. In the spring of 2009, HFMD was epidemic in Korea. Severe cases with complication, including death, have been reported and it has become a public health issue. Most symptomatic EV71 infections commonly result in HFMD or herpangina. These clinical... |
Purpose : Despite the seriousness of bacterial meningitis in children, there is little information on the incidence, causative organisms, mortality rate and age distribution. We studied the frequency by age group and causal pathogens, and clinical characteristics in children with bacterial meningitis in the private sector in Korea. Methods : The medical records containing the data on bacterial meningitis patients... |
Purpose : The purpose of this study was to evaluate the immunogenicity of the booster immunization with pneumococcal conjugate vaccine in Korean children. Methods : Thirty-nine children aged 12-23 months who visited Kangnam CHA Hospital between September 2006 and December 2006 were enrolled. The children were divided into primary and booster groups depending on their vaccination status for the 7-valent pneumococcal... |
Purpose : Antibody persistence after primary series of Haemophilus influenzae type b (Hib) vaccine and responses to boosters are seldom studied in Korean children. We performed this study to evaluate the antibody titer in relation to booster immunization of Hib vaccine in Korean children. Method : One hundred forty four children aged 12-23 months were enrolled in three university hospitals. The... |
Purpose : Streptococcus pneumoniae is a major etiologic agent for pneumonia, meningitis, otitis media, and sepsis among young children. Multi-drug resistant strains have raised great concern worldwide, thus the importance of prevention with vaccines has been emphasized. However, vaccines may force the appearance of pneumococcal infections by nonvaccine serotypes. Thus, distribution of pneumococcal serotypes should be monitored to estimate vaccine... |
Purpose : This study was conducted to validate enzyme immunoassay (EIA) for the quantitative measurement of human IgG antibodies specific for Haemophilus influenzae type b (Hib) capsular polysaccharide. Method : We evaluated specificity, repeatability, intermediate precision, accuracy, lower limit of quantification (LLOQ), and stability to validate standardized EIA for the quantitative measurement of human anti-polyribosylribitol phosphate (PRP) IgG antibodies. Results :... |
Haemophilus influenzae type b(Hib) conjugate vaccines prevent Hib disease in individuals and reduce the carriage and transmission of the organism in the community. The incidence of Hib disease has been decreased dramatically in a diverse range of countries through the use of a variety of conjugate vaccines and vaccine schedules. In some countries, the vaccine has caused a near-disappearance of... |
Purpose : Pneumococcal protein vaccine based on pneumococcal surface protein A (PspA) is in development with the potential to offer a broad range of protection against different strains. PspA elicits protection in mice against fatal sepsis as well as carriage and lung infection. This study was performed to investigate the frequency of PspA families among Streptococcus pneumoniae recovered from Korean... |
Purpose : Kawasaki disease(KD) is a multisystemic inflammatory vasculitis of unknown etiology. Many complications other than cardiovascular involvement have been recognized in KD. However, there have been few reports published concerning involvement of the lungs in this disease. The purpose of this study was to examine the relationship between serum TNF-α, the degree of coronary artery dilatation and chest X-ray(CXR)... |
Purpose : Streptococcus pneumoniae serotype 6B and 6A are important pathogens in pneumococcal infections. It is commonly assumed that the 6B vaccines elicit antibodies cross-reacting with the 6A serotype and the cross-reactive antibodies protect against infections of 6A. To examine this assumption, we measured the opsonophagocytic capacity to serotype 6A and 6B in adults. Methods : Twenty-four adults were immunized... |
Purpose : Streptococcus pneumoniae is an important pathogen in children as well as in elderly people. The aim of this study was to assess the opsonization activity of pneumococal capsular antibody to seven serotypes in 23-valent pneumococcal polysaccharide vaccine before and after immunization in Korean children. Methods : Nine children from 24 to 49 months of age were immunized with 23-valent... |
Purpose : The adipocyte has traditionally been known as a reservoir for energy, but currently there is growing evidence that the adipocyte plays an important role in the pathogenesis of energy metabolism and homeostasis. Adipocytokine released from the adipocyte has been known to play a role in diabetes mellitus, coronary artery disease and other diseases related with obesity. The purpose... |
Purpose : Kawasaki disease is a multisystemic inflammatory vasculitis and associated with neurologic features such as aseptic meningitis. High-dose intravenous immunoglobulin(IVIG) is used to treat Kawasaki disease and generally considered to be safe, but rare cases of aseptic meningitis with unknown etiology have been reported. The aseptic meningitis associated with Kawasaki disease was compared with meningitis as the adverse reaction... |
Purpose : It is well known that the receptors for Fcγ moiety of IgG(FcγR) are instrumental in antibody-mediated clearance of microorganisms by granulocytes and monocytes, and immune regulation in lymphocytes. Furthermore, complement receptor-3(CR3) is also important in neutrophilic adhesion, diapedesis, and phagocytic functions. In an attempt to examine their roles in neonates, we compared the expressions of FcγRs and CR3... |
Purpose : Penicillin- and multidrug-resistant S. pneumoniae poses a serious threat to clinicians because the rate of resistance of S. pneumoniae to penicillin in Korea has surged up to the world's highest level. This study was performed to assess the carriage rate, serogroups and antimicrobial susceptibility of S. pneumoniae isolated from oropharynx in children. Methods : From March to July 1998,... |
Common variable immunodeficiency(CVID) is a heterogeneous immunodeficiency syndrome characterized by hypogammaglobulinemia, recurrent bacterial infections, and a variety of immunological abnormalities. We report a 10-year-old boy diagnosed with CVID and a fatal case of measles. He was admitted for fever, cough, conjunctival injection with purulent discharge and maculopapular rash with some scattered pinpoint sized petechial lesions on the whole body for... |
Purpose : The incidence of obese patients has increased recently in Korea. Obesity is associated with hypertension, hyperlipidemia, insulin resistance, and fatty liver. Since recent investigators have revealed that not only fat accumulation but also fibrosis and nonspecific hepatitis can be found in the livers of obese children, fatty liver is currently considered as an important complication. The purpose of... |
Purpose : Haemophilus influenzae, one of the normal flora of the upper respiratory tract, can cause such infections as otitis, sinusitis, pneumonia, and meningitis in children. The oropharyngeal flora has therefore mainly been analyzed as a reservoir for pathogens. This study was performed to reveal the colonization rate of H. influenzae in the upper respiratory tract, their biotypes, their antimicrobial... |
Purpose : The increasing prominence of pneumococcal infections and of antimicrobial resistance has emphasized the need for a effective vaccine to reduce the risk of pneumococcal disease in childhood. To study the antibody response of pneumococcal vaccine, we compared the concentration and opsonophagocytic capacity of antibodies to the capsular polysaccharide of S. pneumoniae serotype 19F in sera from healthy adults... |
Purpose : Receptors for the Fc of IgG(FcγR) and a β2 integrin molecule, CD11c/CD18 are important in clearance of microbes by granulocytes. We performed an in vitro study on the effect of recombinant human granulocyte colony-stimulating factor(rhG-CSF), or granulocyte-macrophage colony-stimulating factor(rhGM-CSF) on the expression of FcγR II, FcγR III, CD11c and CD18 and respiratory burst function of granulocytes. Methods : Peripheral... |
Purpose : Thawed stem cells should be infused as early as possible because delay of infusion leads to decrease of cell viability and formation of DNA clumping. The procedure of 10% Dimethyl sulfoxide(DMSO) removal and a long distance from the thawing location to the patient are the main causes of delay of infusion that results in the loss of cell... |