We investigated whether the two variant elements of CRE(TGcCGTCA[5'CRE], TGACcTCA[3'CRE]) in the 5'flanking region of the rat TRH gene, which are different from the CRE consensus sequence(5'-TGACGTCA-3') by one base pair, are responsive to cAMP, and whether the one base pair difference is responsible for the degree of cAMP responsiveness of the gene. When CA 77 cells were stimulated with forskolin and isobutylmethylxanthine for 4 hours, the level of TRH mRNA was increased by only two fold. The transient gene expression study using serial 5'deletion of the TRH gene in PC12 cells showed that the region between-113 and-77, which includes 5'CRE, was crucial for the cAMP resonsiveness. When the plasmid, which contains the 30 bp oligonucleotide including either 5'CRE or 3'CRE ligated to the enhancerless RSV promoter, was transfected into PC12 cells, it did not significantly affect not only the basal transcription but cAMP responsiveness. The 65 bp oligonucleotide including both 5'CRE and 3'CRE, however, increased both of the basal transcription and cAMP-stimulated transcription by 2-3 fold. When the sequence of 5'CRE was converted to that of the CRE consensus by replacing one base pair, the cAMP responsiveness was increased by two fold although the basal transcription was not increased. The one base pair mutant of 3'CRE increased both of the basal and cAMP-stimulated transcription by 3-4 fold. These results suggest that there are the two variant CREs in rat TRH gene, which are relatively weak CRE compared to the CREs of other neuropeptide genes and cooperative for the activation of both the basal and cAMP-stimulated transcription. The one base pair difference of the variant CREs from the CRE consensus sequence is responsible for the weak responsiveness to cAMP.
Animals ; Base Pairing ; Colforsin ; Consensus ; Consensus Sequence ; Cyclic AMP ; Gene Expression ; Neuropeptides ; PC12 Cells ; Plasmids ; Rats ; Response Elements ; RNA, Messenger ; Thyrotropin ; Thyrotropin-Releasing Hormone

Purpose: Obesity is associated with nonalcoholic fatty liver disease, one of the most common causes of chronic liver disease.We aimed to demonstrate the effectiveness of bariatric surgery for hepatic steatosis and fibrosis in Korean patients. Methods: A total of 32 consecutive patients were enrolled in this study. Hepatic steatosis and liver fibrosis were assessed before surgery and 6 months after surgery using transient elastography and serologic panels. Results: Thirteen patients (40.6%) were male and 19 (59.4%) were female, with a mean age of 39.3 ± 11.3 years. The body mass index was significant at the 6th month: 39.1 ± 6.7 and 30.3 ± 4.7 kg/m2 (P < 0.001), respectively. The mean preoperative controlled attenuation parameter and liver stiffness measurement values were 325.4 ± 55.9 dB/m and 7.4 ± 4.8 kPa, respectively, before surgery, and they decreased to 267.1 ± 45.1 dB/m and 5.3 ± 2.3 kPa, respectively, 6 months postoperatively (P < 0.001, respectively). Conclusion These results suggest that bariatric surgery is associated with a significant improvement in liver steatosis and fibrosis. Bariatric surgery has a beneficial effect on nonalcoholic fatty liver disease in patients with morbid obesity in Korea.

No abstract available.
Caroli Disease*

No abstract available.
Crohn Disease* ; Stomach*

No abstract available.
Echocardiography* ; Heart Defects, Congenital* ; Prenatal Diagnosis*

Sometimes it is not easy to make the diagnosis of myasthenia gravis (MG). The aim of our study was to understand the diagnostic sensitivities of tensilon, repetitive nerve stimulation (RNS), single fiber EMG (SFEMG) tests, acetylcholine receptor (AChR) antibodies (Ab), and to know their comparative significances for making diagnosis of MG. Those tests were safely completed in 40 myasthenia gravis, which consisted of 17 ocular, 21 generalized, 1 acute severe, 1 late severe MG. In all 40 subjects at least one of the tests was abnormal. The positive rates of tensilon, RNS tests, SFEMG, AChR Ab were 92.5%, 65.0%, 90.0%, and 82.5% respectively. The sensitivities of each tests were high in severe MG group, compared with those in mild MG group, because the positive rates were decreased from 100.0% to 89.2% in tensilon tests, from 83.3% to 57.1% in RNS test, from 100.0% to 89.2% in SFEMG tests and 91.7% to 78.6% in AChR Ab test. The positive results of RNS test was increased from 32.5% on abductor digiti quinti (ADQ) to 65.0% on orbicularis oculi (OOC). Among 3 cases with negative tensilon test, the RNS test in 1 case, the SFEMG tests were positive in all 3 cases, and the AChR Ab assay 1case. Among 3 cases with negative SFEMG, the tensilon tests were positive in 3 all cases, the RNS test in 1case and the AChR Ab assay in 1 cases. Among 5 cases, with negative RNS teses and negative AChR Ab assay, the tensilon tesrs wre positive in 3 cases and the SFEMG tests in 3 cases. Therefore we conclude that tensilon and SFEMG tests were more sensitive than RNS tests and AChR Ab assay. SFEMG test would be indicated to diagnose MG, especially in those mild MG cases with negative stensilon test. Also AChR Ab assay could improve diagnostic yields.
Acetylcholine ; Antibodies ; Diagnosis ; Edrophonium ; Myasthenia Gravis*

Background & PURPOSE:Since the 1970's the rate of breast-feeding has decreased significantly. The Korean National Institute of Health reported that the rate of breastfeeding was 68.9% in 1982 and 14.1% in 1997. There are many influencing factors including: the lack of education and information on breast feeding, lack of faith in breast feeding, increment of the rate of working, lack of encouragement by supporters in difficult situations, and nurses' low level of knowledge about breast feeding. Such a lack of knowledge and support of breast-feeding at home by family members create another dilemma to the problem of breast-feeding. If problems arise and family members are unable to provide assistance due to the deficiency of knowledge, mothers show a tendency to abandon breast-feeding. The purpose of this research is to find out the rate of breast-feeding practice by time sequence of 1 week, 6 weeks and 12 weeks after birth and influencing factors on breast-feeding practice centered on the postpartal women who were 3discharged from one hospital, which is located in Seoul and provides simple breast-feeding education and continuous postnatal telephone consultation. Methodology: The subjects of this research were 54 women who gave birth in a hospital located in Seoul from 1 March 2000 to 31 April 2000. After birth the subjects were educated individually about breast-feeding and telephone consultations were conducted. On the 1st week, 6th week, and 12th week, the subjects were surveyed about their breast-feeding practice rates and methods by telephone. Results: 1) Complete breast-feeding rate: Within one week after birth, the subjects showed 64.2% complete breast-feeding rate. Within 6 weeks, 39.6%, and 12 weeks, 34.1%. 2)Partial breast-feeding rate: Within one week after birth, the subjects showed 32.1% partial breast-feeding rate. Within 6 weeks, 39.6%, and 12 weeks 15.1%. 3)Complete bottle-feeding rate Within one week after birth, the subjects showed 1.9% complete bottle-feeding rate. Within 6 weeks of giving birth 15.1%, and 12 weeks 17.0%. These results show that individual education about breast-feeding and continuous postnatal telephone consultation influenced on the practice of breast-feeding. On considering the reality of the hospital situation in which nurses could not operate education program due to the work-load, it is necessary to find out selectively those mothers who are unable to breast feed and provide education individually and continuous support by telephone follow up. Futhermore, the active role of lactation nurse specialist and their efficient management of breast-feeding for the successful practice is required.
Breast ; Breast Feeding ; Education* ; Female ; Follow-Up Studies* ; Humans ; Lactation ; Mothers ; Parturition ; Referral and Consultation ; Seoul ; Specialization ; Telephone*

Thirty-nine patients with fixed drug eruption who visited the Department of Dermatology in National Medical Center from January 1g7g to December 1982 were selected. Among them, twentyseven patients performed skin biopsy and were evaluated histopathologically on the basis of duration. The results were as follows; ].In the early stage less than 1 week of duration, hydropic degeneration of basal cells, necrotic keratinocytes with eosinophilic cytoplasm and pknotic nucleus in the epidermis, and mixed cell infiltration with eosinophlis in the upper dermis were prominently. In the late stage more than 20 days of duration, acanthosis, an increased amount of melanin in the basal cell layer and presence of melanophages were found more prominent, however, hydropic degeneration of basal cells, papillary dermal ederna, inflammatory infiltration of mononuclear cells were found less prounced or absent.
Biopsy ; Cytoplasm ; Dermatology ; Dermis ; Drug Eruptions* ; Eosinophils ; Epidermis ; Humans ; Keratinocytes ; Melanins ; Skin

No abstract available.
Antibody Formation* ; Immunoglobulin A* ; T-Lymphocytes*

BACKGROUND: Previous studies showed differences in healthcare utilization among insurance types. This study aimed to analyze the difference in healthcare utilization for percutaneous transluminal coronary angioplasty inpatients by insurance types after controlling factors affecting healthcare utilization using propensity score matching (PSM). METHODS: The 2011 national inpatient sample based on health insurance claims data was used for analysis. PSM was used to control factors influencing healthcare utilization except insurance types. Length of stay and total charges were used as healthcare utilization variables. Patients were divided into National Health Insurance (NHI) and Medical Aid (MA) patients. Factors representing inpatients (gender, age, admission sources, and Elixhauser comorbidity index) and hospitals (number of doctors, number of beds, and location of hospitals) were used as covariates in PSM. RESULTS: Tertiary hospitals didn't show significant difference in length of stay and total charges after PSM between two insurance types. However, MA patients showed significantly longer length of stay than that of NHI patients after PSM in general hospitals. Multivariate regression analysis provided that admission sources, Elixhauser comorbidity index, insurance types, number of doctors, and location of hospitals (province) had significant influences on the length of stay in general hospitals. CONCLUSION: Study results provided evidences that healthcare utilization was differed by insurance types in general hospitals. Health policy makers will need to prepare interventions to influence the healthcare utilization differences between insurance types.
Angioplasty, Balloon, Coronary* ; Comorbidity ; Delivery of Health Care* ; Health Policy ; Hospitals, General ; Humans ; Inpatients* ; Insurance* ; Insurance, Health ; Length of Stay ; National Health Programs ; Propensity Score* ; Regression Analysis ; Tertiary Care Centers