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저널/프로시딩 상세정보

권호별목차 / 소장처보기

H : 소장처정보

T : 목차정보

Yonsei medical journal 9건

  1. [국내논문]   Detection of antibodies to melanocytes in vitiligo by western immunoblotting.  

    Hann, S K ; Shin, H K ; Park, S H ; Reynolds, S R ; Bystryn, J C
    Yonsei medical journal v.37 no.6 ,pp. 365 - 370 , 1996 , 0513-5796 ,

    초록

    To more fully define the nature of the antibody response to melanocytes which is associated with vitiligo, a Western immunoblot assay was used to test the sera of 28 patients with vitiligo (21 with active non-segmental, and 7 with stable segmental diseases) and 26 normal individuals for antibodies to antigens in detergent extracts of melanocyte membrane fractions. Antibodies to melanocytes were found in 26 (93%) of the patients with vitiligo, and in 16 (62%) of the control individuals. Patients with vitiligo and control individuals both had antibodies to an 80 approximately 83 kD antigen. The patient with vitiligo, in addition, had antibody responses to antigens with MWs of 45, 65, and 110 kD. Antibodies to these antigens were present in 46, 25, and 31% of vitiligo patients, but in only 19%. 0%, amd 0%, respectively, of the normal individuals. The heterogeneity of the antibody responses to melanocytes in vitiligo was further confirmed by the presence of antibodies to at least 3 distinct antigens in one-third of vitiligo patients but in none of the normal individuals. There was no difference in antibody response between patients with generalized and segmental vitiligo, suggesting that the pathogenesis of diseases was similar in both cases.

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  2. [국내논문]   A PCR-RFLP method for the detection of activated H-ras oncogene with a point mutation at codon 12 and 61.  

    Hong, S J ; Lee, T ; Park, Y S ; Lee, K O ; Chung, B H ; Lee, S H
    Yonsei medical journal v.37 no.6 ,pp. 371 - 379 , 1996 , 0513-5796 ,

    초록

    To investigate the incidence of the H-ras gene activation in bladder tumor and the feasibility of using urinary washout samples for screening, a series of 33 human bladder tumors and their preoperatively collected urinary washout samples were screened using a mutant specific PCR-RFLP (polymerase chain-restriction fragment length polymorphism) to detect a point mutation of the H-ras gene. Five tumors were found to harbor H-ras mutations where two tumors had a glycine to valine (G-->T) change in codon 12 and three tumors had a glutamine to lysine (C-->A) change in codon 61, respectively. Moreover, we could also detect the same point mutations of the H-ras gene in corresponding urine washout samples. The incidence of H-ras mutation in Korean bladder cancer was estimated at approximately 15.2%. In conclusion, a mutant specific PCR-RFLP method for the detection of H-ras gene mutation is useful for screening or postoperative follow-up of bladder tumor due to its simplicity and high specificity even in urinary samples.

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  3. [국내논문]   Psychological characteristics of mothers of children with disabilities.  

    Yim, S Y ; Moon, H W ; Rah, U W ; Lee, I Y
    Yonsei medical journal v.37 no.6 ,pp. 380 - 384 , 1996 , 0513-5796 ,

    초록

    The purpose of this study was to investigate the psychological characteristics of mothers of children with disabilities. This study was performed under the hypotheses that, at the initial diagnosis of the children's disabilities, (1) the mothers suffered from serious psychological distress; (2) the more severe the child's disability was, the more serious the mother's psychological distress was; and that (3) the mother's psychological distress might be resolved within 8 weeks of rehabilitational interventions. The results were as follows: 1) mothers of children with disabilities showed significant (p

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  4. [국내논문]   Real-time determination of left ventricular ejection fraction by automatic boundary detection in patients with dilated cardiomyopathy: a comparison with radionuclide ventriculography.  

    Ha, J W ; Chung, N ; Choe, K H ; Kwan, J ; Rim, S J ; Jang, Y ; Kim, J Y ; Oh, E K ; Lee, Y J ; Shim, W H ; Cho, S Y ; Kim, S S
    Yonsei medical journal v.37 no.6 ,pp. 385 - 391 , 1996 , 0513-5796 ,

    초록

    Echocardiographic automatic boundary detection (ABD) is a new on-line technique which automatically outlines the left ventricular endocardial border and instantly calculates the left ventricular area and volume from two dimensional echocardiographic images. To determine if left ventricular ejection fraction (LVEF) can be derived using the ABD method, 25 consecutive patients with dilated cardiomyopathy, aged 52.1 +/- 15.2 (range 14 approximately 75), underwent complete echocardiographic examination with both the ABD method and radionuclide ventriculography (RVG). End-diastolic and end-systolic left ventricular areas were obtained on-line from the apical four chamber view. Left ventricular length was also measured from an apical view. Left ventricular volumes and ejection fraction were calculated using the single plane area-length method. ABD measurements could be obtained in all patients. Linear regression analysis compared ejection fraction derived by ABD and RVG. The mean radionuclide LVEF was 20.9 +/- 6.8% and mean ABD-derived LVEF was 22.7 +/- 5.8%. Linear regression analysis revealed that the ABD-derived LVEF is closely correlated with the RVG-derived LVEF (r = 0.87, p

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  5. [국내논문]   Ten-year experience of phototherapy in Yonsei Medical Center.  

    Park, S H ; Hann, S K ; Park, Y K
    Yonsei medical journal v.37 no.6 ,pp. 392 - 396 , 1996 , 0513-5796 ,

    초록

    Phototherapy with PUVA or UVB has been used to treat a wide variety of diseases such as psoriasis, vitiligo, atopic dermatitis and mycosis fungoides, etc. The present study was performed to investigate the pattern of phototherapy in the phototherapy clinic of Yonsei Medical Center. One thousand six hundred ninety two patients who received PUVA or UVB phototherapy were included in this study. We analyzed the protocols for phototherapy between 1985 and 1994. The number of phototherapy per year increased sharply until 1991 and thereafter it has remained relatively constant. The most common age group at the start of phototherapy was the third decade. The most common indications for PUVA and UVB phototherapy were vitiligo and psoriasis, respectively. Most patients had received less than 50 treatments of PUVA and less than 200 J/cm2 of cumulative UVA. Most patients had received less than 50 treatments with UVB and cumulative UVB doses were variable. We had not found any malignancy in the skin. Since the maximum safe cumulative doses of UVA or UVB have not yet been established, it is difficult to decide when phototherapy should be discontinued. The data presented in this study needs to be further analyzed in correlation with photoaging and cancer development for the safe usage of phototherapy.

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  6. [국내논문]   P-glycoprotein as an intermediate end point of drug resistance to neoadjuvant chemotherapy in locally advanced gastric cancer.  

    Chung, H C ; Gong, S J ; Yoo, N C ; Noh, S H ; Kim, J H ; Roh, J K ; Min, J S ; Kim, B S ; Lee, K B
    Yonsei medical journal v.37 no.6 ,pp. 397 - 404 , 1996 , 0513-5796 ,

    초록

    The expression of p-glycoprotein (p-gp) was evaluated in pre- and post-chemotherapy states after the administration of adriamycin-based chemotherapy in 24 gastric cancer patients. Among them, group A was composed of twelve patients who relapsed after surgery plus adjuvant chemotherapy and group B was composed of another twelve patients who received neoadjuvant chemotherapy plus surgery. Pre-chemotherapy p-gp was evaluated in 18 out of 24 patients (6 patients had no pre-chemotherapy paraffin blocks) and post-chemotherapy p-gp was evaluated from all 24 patients. Pre- and post-chemotherapy p-gp was expressed in 5 of 18 patients (27.8%), and 9 of 24 patients (37.5%), respectively, with immunohistochemical stain using monoclonal antibody JSB-1. No differences of disease-free survivals were observed in Group A based on post-chemotherapy p-gp expression from relapsed lesions. In Group B, there was a higher relapse rate (p = 0.04) and a lower one-year disease-free survival rate (p = 0.04) in post-chemotherapy p-gp positive patients when adjuvant treatment was done with the same regimen as neoadjuvant chemotherapy. In all patients studied, post-chemotherapy p-gp expression correlated with a higher systemic recurrence (p = 0.04). These data suggest that p-gp can be induced by an adriamycin-based chemotherapy in gastric cancer. Thus, we suggest that the prognosis of gastric cancer may be poor if a multidrug resistance (MDR)-related regimen is used in the presence of p-gp after neoadjuvant chemotherapy with an adriamycin-based regimen, even if the initial response is good.

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  7. [국내논문]   Secretory response of cultured acinar cells of rat pancreas to cholecystokinin.  

    Kim, H ; Kim, K H
    Yonsei medical journal v.37 no.6 ,pp. 405 - 411 , 1996 , 0513-5796 ,

    초록

    To determine the adequate models for studying the functions of pancreatic acinar cells, secretory responses to CCK and to CCK receptor antagonist, L-364, 718 were examined in freshly isolated cells and confluent monolayer cells. The results showed that as CCK concentration increased, releases of amylase and lipase increased dose-dependently reaching a maximum at 10(-9) M in acinar cells cultured in serum-containing media as well as in serum-free media. Acinar response to CCK was partially inhibited by L-364, 718, L-364, 718 itself had no effect on the releases of both amylase and lipase. Confluent monolayer of acinar cells released relatively low levels of enzymes and exhibited less response to CCK. In conclusion, short-term culture of acinar cells would be suitable to study the regulation of pancreatic enzyme secretion, and serum factors do not influence acinar response to the secretagogues. However, confluency of the acinar cells resulted in the loss of their secretory potential in the aspect of amylase and lipase release.

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  8. [국내논문]   Analysis of risk factors for postmolar trophoblastic disease: categorization of risk factors and effect of prophylactic chemotherapy.  

    Park, T K ; Kim, S N ; Lee, S K
    Yonsei medical journal v.37 no.6 ,pp. 412 - 419 , 1996 , 0513-5796 ,

    초록

    Early identification of high risk molar pregnancy is important in preventing the development of subsequent postmolar trophoblastic disease (PMTD). In the present study, evaluation of risk factors of developing PMTD, and indications for initiating prophylactic chemotherapy, and investigation of the effects of prophylactic chemotherapy were undertaken. One hundred and forty complete molar pregnancies treated at Yonsei University College of Medicine were retrospectively analyzed. Thirty-six cases of PMTD developed in these molar pregnancies during follow-up. Risk factors for PMTD were ranked according to frequency with which they were associated with PMTD. The patients with no risk factors were classified in the low-risk group, with one or two in the medium-risk group, and with three or more in the high-risk group. Prophylactic chemotherapy was administered to 14 of 52 low-risk, to 21 of 46 medium-risk, and to 17 of 42 high-risk patients. Among the high-risk patients, the time required for remission was significantly shorter in the group with prophylactic chemotherapy (13.5 weeks) than in the group without prophylactic chemotherapy (22.4 weeks). There were no differences in the duration until remission among the low- and medium-risk patients. Of the 52 patients who received prophylactic chemotherapy, 8 (15.4%) developed PMTD. Among the high-risk patients the occurrence of PMTD was significantly lower in the prophylactic chemotherapy group. Among the low-risk and medium-risk patients, there were no differences in the occurrence of PMTD between the chemoprophylaxis treated and untreated groups. Our results strongly support the use of prophylactic chemotherapy for patients that were designed under our high risk criteria. Prophylactic chemotherapy helps to prevent or reduce the risk of developing PMTD, and shorten the time required for complete remission in high-risk patients.

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  9. [국내논문]   Seroprevalence of rubella antibodies and effects of vaccination among healthy university women students in Korea.  

    Park, K S ; Kim, H S
    Yonsei medical journal v.37 no.6 ,pp. 420 - 426 , 1996 , 0513-5796 ,

    초록

    Since the introduction of rubella vaccination in Korea in 1982, several outbreaks of rubella have occurred. In order to examine the current seroepidemiology of rubella virus infection in Korean women of child-bearing age, the healthy university women students of Yonsei University in Seoul aged 18 approximately 26 years were chosen as a model population. A survey was carried out in the time of routine annual physical check-up. Serum specimens of 242 volunteers of healthy women university students were randomly sampled for screening rubella-specific IgG/IgM antibodies by an automated enzyme immunoassay system (Vitek System VIDAS, bioMerieux Vitek, Inc., Lyon, France). A total of 177 subjects were positive for rubella-specific IgG antibody, giving a prevalence of 73.1%. The mean +/- standard deviation of rubella-specific IgG antibody was 99.3 +/- 95.3 IU/mL. In this study, the efficiency of a vaccination was about 88%. With such a relative high proportion of susceptibility (26.9%) among university women students in child-bearing age, a extensive rubella vaccination program should be enforced to prevent possible outbreaks of congenital rubella syndrome in the future.

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