Herpes simplex virus has rarely been identified as a cause of esophagitis in immunocompetent children. This virus affects predominantly males presenting with symptoms of fever, odynophagia, dysphagia, and retrosternal pain of acute onset. Esophagoscopy typically reveals exudative well-circumscribed ulcerations of the distal and/or mid-esophagus. Further investigations using biopsy, viral culture, polymerase chain reaction (PCR), and seroconversion of antibodies to Herpes simplex are recommended to assist with a definitive diagnosis. This esophagitis is often a self-limited infection in immunocompetent children. Nevertheless, antiviral treatment may expedite symptom relief with Herpes simplex virus infection. It is imperative to document herpes esophagitis in cases with subsequent severe odynophagia in immunocompetent children. Here we present the case of a 12-year-old immunocompetent boy with herpes esophagitis.
Antibodies ; Biopsy ; Child ; Deglutition Disorders ; Esophagitis ; Esophagoscopy ; Fever ; Herpes Simplex ; Humans ; Male ; Methylmethacrylates ; Polymerase Chain Reaction ; Polystyrenes ; Simplexvirus ; Ulcer ; Viruses

An unconscious 5-year-old girl was admitted to the Intensive Care Unit. She was neglected by her parents; she suffered from inadequate nutritional, medical and emotional care. The girl appeared to be emotionally detached, dehydrated and malnourished; she had edematous extremities, moderately bruised skin and brittle coarse hair. Laboratory testing showed electrolyte imbalance, anemia, pneumonia, copper deficiency, and liver dysfunction in addition to severe protein-energy malnutrition (PEM). Medical intervention was followed by improvement of most of the symptoms. During the rehabilitation phase, the patient showed a voracious appetite and gained weight too fast. The liver became enlarged and the patient developed a mild fever due to excessive nutrition. The microcytic anemia with severe PEM did not responded to iron supplementation possibly due to the copper deficiency. Addition of copper without zinc and iron helped to improve the anemia. The patient was discharged to a childcare center where she received cognitive and psychosocial therapy.
Anemia* ; Appetite ; Child ; Child Abuse* ; Child* ; Child, Preschool ; Copper* ; Extremities ; Female ; Fever ; Hair ; Humans ; Intensive Care Units ; Iron ; Liver ; Liver Diseases ; Malnutrition ; Parents ; Pneumonia ; Protein-Energy Malnutrition ; Rehabilitation ; Skin ; Zinc

PURPOSE: Currently many studies have confirmed the relationship between serum adiponectin and its influence on insulin resistance in adults. But physiologic insulin resistance due to changes in sex hormones exists during puberty, which prohibits us from knowing the influence of adiponectin to insulin resistance in this population. In this study, we investigated the influence of adiponectin on insulin resistance in children and adolescents. METHODS: 18 obese children, from the OPD were selected. From All subjects, blood was sampled after overnight fasting, adiponectin, lipid profiles, AST, ALT, fasting glucose and insulin levels were measured to evaluate correlations with adiponectin. The group were divided into subgroups by BMI, sex and HOMA-IR values. All variables were compared for differences and relationships. RESULTS: Obese groups showed decrease in adiponectin and showed increased insulin. HOMA-IR values were increased in the obese group. In all study participants, adiponectin showed significant correlation with triglyceride and HDL. But adiponectin showed no significant correlation with HOMA-IR, insulin and glucose. In the obese group adiponectin showed no correlation with HOMA-IR, insulin and glucose. HOMA-IR showed significant correlation with BMI, body weight and age. There were no sexual differences in adiponectin, insulin and HOMA-IR values. Insulin resistant group showed decrease in adiponectin but had no statistical significance. CONCLUSION: Decreased adiponectin levels and increased insulin resistance were observed in obese children but adiponectin showed no correlation with insulin resistance in children and adolescence. Factors other than adiponectin may play a more significant role in insulin resistance in this age group.
Adiponectin* ; Adolescent* ; Adult ; Body Weight ; Child* ; Fasting ; Glucose ; Gonadal Steroid Hormones ; Humans ; Insulin Resistance* ; Insulin* ; Puberty ; Triglycerides

Helicobacter pylori is a causative agent of type B gastritis and plays a central role in the pathogenesis of gastroduodenal ulcers and gastric cancer. Strategies for the control of H. pylori- induced gastroduodenal diseases based on conventional measures are still of limited utility. Therefore, it seems worthwhile to make a break-through as an alternative strategy by reviewing the host-parasite relationship of H. pylori infection on the basis of genomic structure. In this study, we tried to construct a physical map of H. pylori genome. Chromosomal DNA from a Korean prototype strain, H. pylori 51 was digested with 42 restriction endonucleases to identify restriction patterns suitable for mapping the genome. We identified three enzymes, ApaI, NotI and Sfil, which gave a small number of DNA fragments of higher molecular weight that were well resolved after pulsed-field gel electrophoresis. The H. pylori chromosome contained 7 ApaI fragments ranging from 167 to 311 kb, 7 NotI fragments ranging from 5 to 516 kb and 2 SfiI fragments of 332 and 1,347 kb in size. The genome size of the strain is 1,679 kb. A circular physical map of the H. pylori chromosome was constructed by aligning 3 kinds of restriction fragments by Southern blot analysis of simple ApaI, NotI and SfiI digests or double NotI/ApaI and NotI/SfiI digests with the various probes. When the physical map of H. pylori strain 51 compared with that of strain 26695 of which the cornplete genome sequence was reported, completely different restriction patterns were shown, which suggests the genomic diversity in H. pylori.
Blotting, Southern ; DNA ; DNA Restriction Enzymes ; Electrophoresis, Gel, Pulsed-Field ; Gastritis ; Genome ; Genome Size ; Helicobacter pylori* ; Helicobacter* ; Host-Parasite Interactions ; Molecular Weight ; Peptic Ulcer ; Stomach Neoplasms

To define the genes for production of catalytically active H. pylori urease, we camed out study to elucidate the structure of urease gene transcript, to delineate the genetic region which affected the extent of the expression and the activation of urease structural subunits. UreC and ureD were confirmed not to affect the expression of structural genes and active enzyme production, meaning that these genes are not components of the urease gene cluster of H. pylori. p-independent transcriptional stop signal was found in 12 bp down-stream of ureH stop codon. RNA extension test showed that the transcript starts with 267 bp upstream of ureA start codon. Although accessory genes did not affect the extent of the expression of the structural subunits, they were essential for assembling the active urease in E. coli. E. coli transformants of plasmid clones containing ureAB produced catalytically active urease when they are complemented with the plasmid clones of ureIEFGH or coexisted with ureIEFGH, meaning that accessory gene products could be trans-acting as well as cis-acting. The extent of production of urease structural subunits depended on the region of 241 to 57 bp upstream of ureA start codon. E. coli transformant of pBeloBACII clone containing the urease gene cluster, which is maintained with a single copy in host, did not express the urease. Proteins (60, 38, 30, 29, 27, and 24 kDa) that could hold nickel ions were identified in the cell extract of H. pylori. The results in this study will provide the basis to understand the control mechanism for urease gene expression and formation of the active urease.
Clone Cells ; Codon, Initiator ; Codon, Terminator ; Complement System Proteins ; Gene Expression ; Helicobacter pylori* ; Helicobacter* ; Ions ; Multigene Family ; Nickel ; Plasmids ; RNA ; Urea ; Urease*

PURPOSE: TATA box mutation/polymorphism in the promoter region of the bilirubin uridinediphosphoglucuronate glucuronosyltransferase 1A1 (UGT-1A1) gene is known to be an etiology of hyperbilirubinemia. This study examined if a TATA box mutation/polymorphism in UGT-1A1 gene promoter could be associated with the development of severe early neonatal jaundice in Korean infants. METHODS: Thirty-nine neonatal jaundice patients and 40 controlled infants were analyzed for UGT-1A1 promoter genotypes by using DNA sequencing. RESULTS: The homozygote for (TA)7TAA mutation was not found in this study. Comparison of the prevalence of UGT-1A1 promoter (TA)7TAA heterozygotes revealed no difference between the group with jaundice and the controlled group (15.4% vs. 10%). The peak bilirubin level was higher and the onset of jaundice was earlier in the jaundice group with (TA)7TAA heterozygote compared to the jaundice group without (TA)7TAA heterozygote (23.2+/-1.0 mg/dL vs. 19.7+/-2.4 mg/dL, P=0.004, 5.0+/-1.5 days vs. 8.3+/-4.1 days, P= 0.057). CONCLUSION: The results of this study showed that TATA box polymorphism in UGT-1A1 gene promoter did not increase the prevalence of severe early neonatal jaundice in Korean infants.
Bilirubin ; Genotype ; Glucuronosyltransferase ; Heterozygote ; Homozygote ; Humans ; Hyperbilirubinemia ; Hyperbilirubinemia, Neonatal* ; Infant ; Infant, Newborn ; Jaundice ; Jaundice, Neonatal ; Prevalence ; Promoter Regions, Genetic ; Sequence Analysis, DNA ; TATA Box

Partially purified H. pylori ADH was used to determine the amino acid sequence of ADH N- terminus. The sequence of the ADH N-terminus was determined as MRVQSKGF. The genomic library of H. pylori that has been prepared by pTZ19U plasmid vector was screened with the deduced oligonucleotide probes to select the plasmid clone containing the entire ADH gene. The clone pTZ19U/ADH-6 was selected and its EcoRI-BamHI fragment (1.3 kb) was subcloned into pBluescript II K/S vector to determine nucleotide sequence. The length of H. pylori ADH gene was 1,044 bp. Ribosomal binding site was found in the upstream of start codon and rho- independent transcriptional stop signal was observed in the downstream of stop codon. The ADH gene encodes a protein of 348 amino acids, of which the predicted molecular size and pI value were 38.6 kDa and 7.1, respectively. ADH activity of E. coli transformant of pBluescript/ADH is 10-times greater compared to that of non-transformants. When H. pylori ADH gene was disrupted by pBluescript/ADH-KM whose internal region of 1.3 kb DNA fragment containing ADH gene was replaced by KM resistance sequence, the strain lost the ADH activity completely, despite the normal growth of the strain. This demonstrates that ADH gene is not essential for the viability of H. pylori.
Alcohol Dehydrogenase* ; Amino Acid Sequence ; Amino Acids ; Base Sequence* ; Binding Sites ; Clone Cells ; Cloning, Molecular* ; Codon, Initiator ; Codon, Terminator ; DNA ; Genes, vif* ; Genomic Library ; Helicobacter pylori* ; Helicobacter* ; Oligonucleotide Probes ; Plasmids

The DNA sequence of a plasmid named pHP489 of Helicobacter pylori strain 489 was determined and analyzed to characterize its replication apparatus. The pHP489 plasmid consisted of 1,222 bp and had an overall G+C content of 33.1%. An ORF was predicted to encode the putative protein of 239 amino acid residues (28 kDa). A putative ribosomal binding site and a potential terminator sequence are located upstream and downstream of the ORF, respectively. However, the consensus sequence for a promoter in upstream of ORF was not found. A potential dna A box was found at 317 nt upstream of a start codon and followed by two-57 bp directed repeats and an inverted repeat. The DNA homology was found in the regions of less than 90 bp among pHPK255, pHPM180, and pHel1 of other H. pylori plasmids and Mycoplasma mycoides plasmids. pHP489K that was produced by pHP489 sequence and C. jejuni derived aph(3')-III, was transformed to various H. pylori isolates and were stably maintained in the H. pylori host without the addition of selective antibiotics for the 30-times subcultues. The plasmic vector, in which the ORF region of pHP489 DNA was deleted, could be transformed into H. pylori. However, the plasmid vector, whose the direct repeats region of pHP489 DNA was deleted, failed to be transformed. The direct repeats region of pHP489 DNA was confirmed to be bound with cytosolic factors of H. pylori. These results showed that the direct repeats region of pHP489 DNA is an essential apparatus by which the plasmid could be replicacted in H. pylori. And pHP489 plasmid was supposed to be replicated by host factors rather than plasmic-encoded factors.
Animals ; Anti-Bacterial Agents ; Base Composition ; Base Sequence ; Binding Sites ; Codon, Initiator ; Consensus Sequence ; Cytosol ; DNA ; Ecthyma, Contagious ; Helicobacter pylori* ; Helicobacter* ; Mycoplasma mycoides ; Plasmids* ; Repetitive Sequences, Nucleic Acid ; Sequence Analysis* ; Terminator Regions, Genetic

BACKGROUND: A primary central nervous system lymphoma (PCNSL) is a rare neoplasm with a poor prognosis. The treatment of PCNSL involves a combination of chemotherapy, intrathecal chemotherapy and radiotherapy. This study retrospectively evaluated the treatment outcomes and prognostic factors of Korean patients with PCNSL. METHODS: Between 1995 and 2003, 58 patients diagnosed with PCNSL from the multi-center hospitals were enrolled in this study. Among 56 patients who had received treatment, 16 patients were treated with radiotherapy alone, while 40 patients were treated with combined chemotherapy (CHOP; 9 cases, high-dose methotrexate; 31 cases) and radiotherapy. RESULTS: The median age of the patients was 58 years (range, 19-76). A diffuse large B-cell lymphoma was diagnosed in 56 cases (96.6%), while a peripheral T-cell lymphoma was diagnosed in 2 cases. Of the 47 patients who could be assessed for their response after treatment, a CR and PR was observed in 32 (68%) and 11 patients (23%), respectively, giving an overall response rate of 91% (95% CI, 82~100%). The estimated 3-year overall survival rate for all the patients was 67+/-7.9% and the 3-year disease free survival rate was 53+/-8.3%. The overall survival of the high-dose methotrexate group was superior to that of the CHOP group (77+/-10% versus 47+/-19%, p=0.05). Leukoencephalopathy was observed as a late complication in 9 patients (21%). No significant prognostic factors affecting survival were found by univariate analysis. CONCLUSIONS: Approximately half of the patients could have long-term survival after treatment in this study. High-dose methotrexate containing chemotherapy followed by radiotherapy was found to be an effective treatment.
Central Nervous System* ; Disease-Free Survival ; Drug Therapy ; Humans ; Leukoencephalopathies ; Lymphoma* ; Lymphoma, B-Cell ; Lymphoma, T-Cell, Peripheral ; Methotrexate ; Prognosis ; Radiotherapy ; Retrospective Studies* ; Survival Rate

Colorectal cancer is the third most common cancer in Korea and the third leading cause of death from cancer. Treatment outcomes for colon cancer are steadily improving due to national health screening programs with advances in diagnostic methods, surgical techniques, and therapeutic agents.. The Korea Colon Cancer Multidisciplinary (KCCM) Committee intends to provide professionals who treat colon cancer with the most up-to-date, evidence-based practice guidelines to improve outcomes and help them make decisions that reflect their patients’ values and preferences. These guidelines have been established by consensus reached by the KCCM Guideline Committee based on a systematic literature review and evidence synthesis and by considering the national health insurance system in real clinical practice settings. Each recommendation is presented with a recommendation strength and level of evidence based on the consensus of the committee.