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Purpose : During differentiation of HL-60 cells by all-trans retinoic acid(ATRA), we analyzed the expression of Fcr receptors and Mac-1 by molecules of equivalent soluble fluorochromes(MESF) and functional studies. Methods : HL-60 cells were induced to differentiate by adding 1μM ATRA. On the 4th and 7th day after stimulation as well as before stimulation, the cells were analyzed for phenotypic and... |
Purpose : We previously reported modified bovine lung surfactant YY-38(NewfactanⓇ) had a low surface tension, good hysteresis, and exhibited good pressure-volume curve in animal experiment (J Korean Pediatr Asso 1997;40:771-85). We performed multicenter clinical trial of NewfactanⓇ in neonatal RDS. Methods : Seventy-seven infants with RDS(GA 31.8¡¾2.9 wks and BW 1,809¡¾592 gm) in 4 NICU were enrolled. After administration of... |
Purpose : We tried to compare normal term infants with low-birth-weight infants discharged from NICU by evaluating morbidity. So we studied rates of rehospitalization, reasons for rehospitalization and neonatal risk factors that affect rehospitalization of normal term infants and low-birth-weight infants discharged from NICU. Methods : This study was performed on 217 low-birth-weight infants discharged from NICU and 126 normal term... |
Purpose : The aim of the present study is to detect cagA and vacA genes of Helicobacter pylori(H. pylori) strain in gastric biopsy specimens and to evaluate its association with gastric inflammation in children. Methods : The cagA and vacA genes were detected by a direct polymerase chain reaction(PCR) assay of gastric biopsy specimens in 22 patients who were... |
Purposes : Rotaviruses are the main cause of infantile diarrheal diseases worldwide. The purpose of this study is to obtain epidemiologic data of rotavirus infections in Korea. Methods : Stool specimens were collected from 150 patients with acute diarrheal symptoms, who were admitted to Yonsei Medical Center and Chungbuk National University Hospital. After isolating the virus from the specimens, the viruses... |
Purpose : Aspirin(acetylsalicylic acid) has been used to treat unstable angina and acute myocardial infarction in adults and Kawasaki disease in children. The antithrombotic effect of aspirin was attributed to its ability to inhibit platelet aggregation by inhibiting platelet cyclooxygenase, which leads to decreased thromboxane synthesis. The purpose of this study was to evaluate the effect on the platelet aggregation... |
Purpose : Due to controveries surrounding in the incidence of coarctation of aorta which reports previously stated rare among Orientals, we evaluated clinical characteristics, natural courses of coarctation of aorta and effects of different surgical modalities. Methods : Medical records of 51 patients with coarctation of aorta, diagnosed by 2-dimensional echocardiography in Kyungpook University Hospital Pediatric Cardiac Laboratory from June 1985... |
Purpose : Intestinal malrotation is a developmental anomaly and may be complicated by volvulus and intestinal necrosis. We performed anatomic classification and compared clinical profiles to understand their relationship. Methods : Twenty-eight children were diagnosed as intestinal malrotation at Seoul National University Children's Hospital between Jan. 1980 to Dec. 1995. The patients were classified into 4 groups by age at... |
Purpose : Congenital esophageal stenosis(CES) is one of the rare causes of recurrent vomiting during infancy and childhood. We studied the diagnostic and therapeutic tools and postoperative complications for early diagnosis and adequate management of CES. Methods : Fourteen cases of CES were evaluated for clinical manifestations, findings of esophagogram and esophagoscopy, classification of pathologic findings and postoperative complications. Results : Most... |
Purpose : To observe the risk factors of renal scar in children with first acute pyelonephritis (APN) who had photopenic defects on initial 99mTc-DMSA spect renal scan. Methods : Forty-seven children with first APN(M : F=33 : 14) who were admitted to Ewha Womans University Hospital from September, 1993 to Febrary, 1998, were divided into renal scar group(N=17, Kidney unit(KU)=18) and... |
Purpose : c-fos is rapidly and transiently induced in the intact CNS by a wide variety of exogenous stimuli that include seizures, glutamate receptor activation, sensory stimulation and stress. In adult animals, systemic KA administration produces limbic seizures that results in c-fos protein expression, irreversible morphological changes and localized neuronal death. So we studied the pattern of c-fos protein expression... |
Purpose : It is known that insulin resistance and compensatory hyperinsulinemia from pancreatic islet cells to overcome insulin resistance could develop in children with simple obesity. When insulin resistance is aggravated by decompensation of high insulin secretion, obese children frequently progress to overt type 2 diabetes mellitus(DM). The purpose of the present study was to measure insulin sensitivity, glucose effectiveness,... |
Ulcerative colitis is a chronic relapsing inflammatory disease localized on the colon. This disease is rare in children under 10 years of age. We experienced a case of ulcerative colitis in a 3-year- old male child. He was admitted due to fever, abdominal pain and diarrhea for 5 days, followed by rectal bleeding for 2 days. The diagnosis was established... |
Levamisole has been used for nephrotic syndrome due to its immunostimulating, immunomodulating, and steroid-sparing effects. Agranulocytosis, a serious side effect of levamisole, was rare and mostly associated with autoimmune disease, neoplastic disease and HLA B27 except one case in a nephrotic syndrome who was treated with high-dose(5mg/kg QOD) levamisole. This 15 year-old girl with steroid dependent nephrotic syndrome, who was... |
Bronchial mucoepidermoid carcinoma is very rarely encountered in children. We report a case of bronchial mucoepidermoid carcinoma in a 10-year-old boy who presented with persistent cough and atelectasis. Bronchoscopic examination showed a tumor mass occluding the right bronchus intermedius, and the mass was removed by bronchoscopy. The results of the pathological examination revealed low-grade mucoepidermoid carcinoma. He underwent right middle... |
Infections of the face, especially of the medial third or “the danger triangle”, are the most frequent primary foci associated with thrombosis of cavernous sinus. Microorganisms entering the facial vein and pterygoid plexus from these sites are easily carried to the sinus through the ophthalmic vein. When the septic thrombosis involves various structures in the sinus, multiple clinical manifestations develop... |