No abstract available.
Breast Diseases* ; Breast* ; Estrogens* ; Progesterone* ; Receptors, Estrogen* ; Receptors, Progesterone*

To study the gyrA mutations of E. coli from clinical specimens, 410 strains were isolated from 1994 to 1997 in Kyungpook National Vniversity hospital. Antimicrobial susceptibility tests, PCR and sequencing of gyrA, and in vitro induction of quinolone resistance were done. The frequency of quinolone resistant E. coli strains increased constantly during 1994 through 1996. Quinolone-resistant strains were more often resistant to unrelated antibiotics than quinolone-susceptible strains (chi-square test, p<0.05). All of the randomly selected 55 quinolone- resist#ant strains were highly resistant to nalidixic acid (NAL) but had low level resistance to fluoroquinolones. All of the 55 quinolone-resistant strains showed an amino acid substitution of Ser -> Leu (TCG -> TIG) at codon 83. In addition, four different types of amino acid substitution affecting codon 87 (Asp) were detected, 1) type I: Asn (GAC -> AAC); 2) type II: Tyr (GAC -> TAC); 3) type III: Oly (GAC -> GGC); 4) type IV: His (GAC -> CAC). The mutation of type IV has not been reported previously in quinolone-resistant E. coli strains. It is thought that the specific amino acid substitution probably affects minimum inhibitory concentrations (MIC) of quinolones because the MICs of ciprofloxacin, norfloxacin, and ofloxacin in type II were significantly higher than those of type I. By in vitro induction, MICs to quinolone-susceptible strains resulted in the increase in the MICs of all quinolones tested by 2- to 2048-fold. The induced mutants by quinolones had amino acid substitutions at codon 83, SerLeu or Asp87Asn, Gly or Tyr. Alteration of Ser83 results in the most effective increase in the MIC of quinolone such as NAL and alterations of Asp87 result in the effective increase of MIC of fluoroquinolone. These results suggest that the continuous use of quinolones might induce the specific amino acid substitution at gyrA.
Amino Acid Substitution ; Anti-Bacterial Agents ; Ciprofloxacin ; Codon ; Escherichia coli* ; Escherichia* ; Fluoroquinolones ; Gyeongsangbuk-do ; Microbial Sensitivity Tests ; Nalidixic Acid ; Norfloxacin ; Ofloxacin ; Polymerase Chain Reaction ; Quinolones

The use of the interlocking intramedullary nails expand the possibilities for treatment of femoral shaft fractures, as illustrated by consistent and satisfactory clinical results. However, the technique is relatively complex compared to conventional nails and frequently poses technical problems. A retrospective review was undertaken of twenty-eight patients with femoral shaft fractures which had technical problems after undergoing the closed reduction and internal fixation with interlocking intramedullary nail procedure. We studied the types of the problems. Their causes, the frequency of problems with various kinds of nails, and discussed solutions of the problems. There were 21 additional comminutions and intraop erative splinterings, 8 angular deformities, 3 malpositioned nails, 3 loosened distal locked screws, 2 brocken drill bits, and 1 femoral neck fracture. Bone-union was attained in all cases (28 patients), but the period of treatment to attain bone-union was protracted to an average of 6.8 (5-12) months. In 3 cases, the knee joint range of motion was of limited flexion, 70 to 90 degrees, but in all other cases full range of motion was realized. 7 cases required 2 or more operations. The hospitalization period was for an average of 3.6 months. In conclusion, the importance of careful preoperative planning and experienced surgical technique cannot be overemphasized because we could see no significant difference in the occurence of technical problems in several kinds of the nail.
Congenital Abnormalities ; Femoral Neck Fractures ; Fracture Fixation, Intramedullary ; Hospitalization ; Humans ; Knee Joint ; Range of Motion, Articular ; Retrospective Studies

The Duodenal diverticulum is the rare cause of the common bile duct obstruction. We experienced a case of the diverticulum of the second portion of duodenum in a 59-year-old male, who complained recurrent attacks of right upper abdominal pain and fever since 16 months prior to admission. Duodenoscopic finding and UGI study revealed a typical duodenal diverticulum just side to the papilla of Vater. Diverticulectomy and cholecystectomy was performed and after than, he has been free front above mentioned symptoms. We reported a case of duodenal diverticulum which caused recurrent common bile duct obstruction.
Abdominal Pain ; Cholecystectomy ; Common Bile Duct* ; Diverticulum* ; Duodenum ; Fever ; Humans ; Male ; Middle Aged

BACKGROUND: Microlymphocytotoxicity test is most widely used for HLA Class l typing but almost all laboratories depend on imported HLA Class 1 typing trays. Matching criteria for the selection of HLA- matched platelets to treat platelet refractoriness is not as strict as for bone marrow transplantation. Therefore, with the acquisition of various antisera against high frequency HLA antigens, self-made HLA typing trays can be used for HLA typing of HLA-matched platelet donors. METHODS: 140 samples obtained during placental delivery were tested for the presence of HLA antibodies against a well-characterized panel of 90 cells. Specificity of HLA antisera were determined by evaluating the correlation coefficient r of the 2 x 2 table, x2 test. Antisera strength was evaluated by the strength index. RESULTS: HLA antibodies were detected in 25 samples by primary screening and 23 samples also showed a positive reaction in secondary screening(16%). Among 23 samples, 1 1 antisera were of reagent grade quality and 7 were monospecific antisera. DISCUSSION: Imported HLA typing trays can be replaced by harvesting HLA antisera against HLA antigens which are relatively common in Koreans through continuous HLA antibody screening using gushed out blood during placental delivery. (Korean J Blood Transfusion 10(1): 53-60, 1999)
Antibodies ; Blood Platelets ; Blood Transfusion ; Bone Marrow Transplantation ; Histocompatibility Testing ; HLA Antigens ; Humans ; Immune Sera ; Mass Screening ; Sensitivity and Specificity ; Tissue Donors

Twelve cases with paralytic elbow due to a traumatic lesion of the brachial plexus (eleven cases) and to poliomyelitis (one case) were treated by elbow flexorplasty from April, 1978 to February, 1984 Seven cases with available muscle for transfer were treated by muscle transfer, three cases withwhole arm type brachial plexus injury were treated by gracilis muscle transplantation, and two relatively fresh cases by neurotization. The three operated groups were assessed in range of active elbow motion, muscle power testing, and electromyography at final follow-up. In eight cases, the elbow flexorplasty were augmented by shoulder arthrodesis. The mean length of follow-up was twenty two months. The mean arc of restored active elbow motion was 93 degrees following muscle transfer, 100 degrees following gracilis muscle transplatation, and 35 degrees following neurotization. The overall mean arc of active elbow motion was 77.5 degrees. In the muscle testing, the mean scores of the elbow flexor power were 3+, 4−, and 3− following muscle transfer, grcilis muscle transplantation, and neurotization respectively. The overall mean score of restored elbow flexor power was 3− . The electromyographic findings also revealed corresponding restoration of the action potential in the flexor muscle in the three groups. One case of the transfer group failed after sternocleidomastiod muscle transfer, who subsequently received gracilis muscle transplantation with satisfactory result.
Action Potentials ; Arm ; Arthrodesis ; Brachial Plexus ; Elbow ; Electromyography ; Follow-Up Studies ; Nerve Transfer ; Poliomyelitis ; Shoulder

Primary chondrosarcoma of the lung is an extremely rare tumor, and classified into two types, tracheobronchial & lung variety. The tracheobronchial variety is usually localized and lacked lymph nodal or distant spread with good prognosis. The lung variety tends to be more invasive associated with mediastinal lymph node involvement and thoracic metastasis. Authors experienced a case of primary chondrosarcoma, lung variety, of the lung involving left lower lobe with thoracic metastasis, not yet reported in Korean literatures. The patient was 55-year-old Korean female and chief complaints were cough, dyspnea & chest pain. Pathologically, it was confused with the metastatic adenocarcinoma in the first pleural fluid cytology. But bronchoscopic biopsy revealed typical morphology of chondrosarcoma with concentric growth encircling the bronchial tree and partial destruction of the bronchiols, suggesting its primary origin. Later pleural biopsy and aspiration materials during ches tube insertion revealed also metastatic chondrosarcoma. Radiologic studies were also campatible findings to chondrosarcoma. After admision, the patient underwent progressively downhill course & expired at 31st hospital day.
Female ; Humans ; Adenocarcinoma ; Biopsy ; Neoplasm Metastasis

No abstract available.
Adult* ; Humans

Purpose: The diagnostic usefulness of fetal echocardiography in congenital heart disease is well known. One of the indications for fetal echocardiography is presence of extracardiac anomalies and such coexistent congenital heart disease may have important implications for obstetric and neonatal management. MATERIALS AND METHODS: 496 women with singleton pegnancies with amgenital anomalies that underwent penatal care and follow-up in Severance Hospital for 5 years from 1991 to 1995 were evaluated for the incidence of congenital heart disease. RESULTS: The incidence of congenital heart disease in fetuses with the associated extracardiac anomalies were as follows; central nervous system 6.9%(11/160), gastro-intestinal system 10.7%(8/75), genito-urinary sysem 4.7%(4/85), others 5.6%(4/72). Thirty-one of eighty-ane fetuses with congenital heart disease were found to have the associated extracardidac anomalies and ten of them chenoscenal abnormalities. CONCLUSION: We recommend that fetuses with congenital extracardiac anomalies sbould be checked for the presence of congenital heart disease and chmmosomal abnormalities, if needed.
Central Nervous System ; Echocardiography ; Female ; Fetus ; Follow-Up Studies ; Heart Defects, Congenital* ; Humans ; Incidence

PURPOSE: To assess the role of nitric oxide in the development of cataract by detection of nitrotyrosine, which is a reaction product of peroxynitrite with tyrosine. METHODS: We have collected aqueous humor and anterior capsule of lens after cataract surgery from 14 eyes. We classified lens opacities into three types such as nuclear sclerosis, cortical and posterior subcapsular opacity. Nitrite, stable oxidative product of nitric oxide, was measured in the aqueous humor and immunohistochemical staining for nitrotyrosine was performed to examine anterior capsules. RESULTS: The concentrations of nitric oxide in aqueous humor were 0.0698+/-0.0036, 0.0652+/-0.0116, and 0.0700+/-0.0022 mM in nuclear sclerosis, cortical and posterior subcapsular opacity, respectively and no significant differences existed among lens opacity types. In lenses with cortical and posterior subcapsular opacity, the expression of nitrotyrosine was observed around epithelial cell and intercellular space. There was no expression of nitrotyrosine in lenses with nuclear sclerosis. CONCLUSIONS: This results suggest that nitration of tyrosine by peroxynitrite is possibly related to the cataractogenesis of lenses with cortical and posterior subcapsular opacity.
Aqueous Humor ; Capsules ; Cataract* ; Epithelial Cells ; Extracellular Space ; Nitric Oxide* ; Peroxynitrous Acid ; Sclerosis ; Tyrosine