1.Morphological Changes in Glomerular Epithelial Cells and Basement Membranes in Puromycin Aminonucleoside Induced Nephropathy.
Chan Oh CHOI ; Hyun Chul KIM ; Kwan Kyu PARK
Korean Journal of Nephrology 1998;17(6):853-865
Puromycin aminonucleoside (PAN) nephropathy was induced in a group of Sprague-Dawley rat by a single dose of intraperitoneal injection to study an ultrastructural alteration of glomerular anionic sites by stain with polyethyleneimine (PEI) as a cationic probe and to examine whether proliferation of podocytes occur by immunohistochemical stain for proliferating cell nuclear antigen (PCNA). The experimental rats developed proteinuria three days after PAN injection. Electron microscopic studies of glomeruli showed the loss of epithelial foot processes, formation of cytoplasmic vacuoles, microvillous formation and increased numbers of lyso- somes in the cytoplasm of podocytes. PEI method seems to selectively stain heparan sulfate proteogly-can in basement membrane and has been widely used to evaluate the changes of basement membrane in human disease as well as in experimental work. The anionic sites on the basement membrane with foot process fusion were mostly indistinguishable from those seen in control rats, but focal areas of loss or disarray of anionic sites were noted. The anionic sites were not seen on the basement membrane where the overlying epithelium was detached. It is strongly suggested that proteinuria in PAN nephrosis may be primarily due to a glomerular epithelial lesion, leading to focal disarray of anionic sites or focal defects in the epithelial covering of the basement membrane. The loss of anionic s'ites in the basement mernbrane may be resulted partially from the foot process fusion and mostly from the epithelial detachment. The increased numbers of PCNA positive cells after the injection of PAN is suggestive of possibility of podocytic proliferation or regeneration.
Animals
;
Basement Membrane*
;
Cytoplasm
;
Epithelial Cells*
;
Epithelium
;
Foot
;
Heparitin Sulfate
;
Humans
;
Injections, Intraperitoneal
;
Nephrosis
;
Podocytes
;
Polyethyleneimine
;
Proliferating Cell Nuclear Antigen
;
Proteinuria
;
Puromycin Aminonucleoside*
;
Puromycin*
;
Rats
;
Rats, Sprague-Dawley
;
Regeneration
;
Vacuoles
2.A case of chronic mucocutaneous candidiasis associated with hypoparathyroidism.
Dong Won KIM ; Jun Kyu OH ; Kyu Han KIM ; Kyoung Chan PARK ; Hoan Jong LEE
Korean Journal of Dermatology 1993;31(5):755-759
Chronic mucocutaneous randidiasis is a clinical syndrome characte ized by chronic and reccurent superficial candidal infection of the skin, mucous membranes, and nails. This syndrome is frequently associated with immune deficiency or endocrinopathy, especially hypopar; thyroidism. We report a case of chrcinic mucocutaneous candidiasis associated with hypoparathyroidism in a 8- year-old girl.
Candidiasis
;
Candidiasis, Chronic Mucocutaneous*
;
Female
;
Humans
;
Hypoparathyroidism*
;
Mucous Membrane
;
Skin
;
Thyroid Gland
3.Clinical Study of Urticaria Pigmentosa in Children.
Kyu Han KIM ; Jun Kyu OH ; Phil Soo AHN ; Kyoung Chan PARK ; Sang Eun MOON
Annals of Dermatology 1995;7(1):29-33
BACKGROUND: Urticaria pigmentosa(UP) is primarily a disease of children. There have been no clinical studies of UP in Korea. OBJECTIVE: This study was performed to find the clinical characteristics of UP in Korean child-hood patients. METHOD: Twenty-nine cases of urticaria pigmentosa confirmed clinically and histopathologically were analyzed. RESULTS: The maculopapular type was the most common with the usual age of onset before the age of 6 months, and the lesions tended to be distributed in the central portion of the body. Darier sign was positive in 92% of the patients(24/26). No systemic involvements were detected in any of the patients with minimal associated symptoms. Seven patients of the maculopapular type and one patient of the multiple nodular type followed up for more than 2 years showed a tendency to improve or clear by the age of 6 years. CONCLUSION: Neonatal or infantile-onset patients of UP in Korean pediatric population were considered to have a benign clinical course and to require no aggressive therapy.
Age of Onset
;
Child*
;
Clinical Study*
;
Humans
;
Korea
;
Methods
;
Urticaria Pigmentosa*
;
Urticaria*
4.The Structural Properties of Israeli Carp ( Cyprinus carpio L. ) Immunoglobulin.
Sang Hoon CHOI ; Jong Kyu WOO ; Yong Suk JANG ; Chan Ho OH
Korean Journal of Immunology 1999;21(1):85-92
Serum immunoglobulins from Israeli carp (I. carp) were purified using affinity chromatography. Fish were immunized with purified mouse IgG, and the specific fish antibodies purified from the immune serum on a mouse IgG-immobilized agarose gel. Rabbit anti-carp Ig (Raclg) antibodies were produced following hyperimmunization with mlgG specific I. Carp Ab. SDS-PAGE analysis under reducing condition showed that I. carp Ig (clg) were composed of two u-like heavy chains with about 82 and 50 kD, respectively and one light chain with about 25 kD. On immunoblotting analysis, however, Raclg failed to react with light chain. When both protein A and protein G purified normal clg were compared with mlgG specific clg, no significant structural differences among them were observed. To investigate if there is any homology between other fish Ig molecules, cross-reactivity of Raclg against Ig molecules from 6 different fish sera and mouse control serum was checked on immunoblotting analysis. As a result, Raclg responded to only carp and tilapia Ig molecules, indicating that both tilapia and carp are very closely associated, especially, in the genetic basis of immunoglobulin structure. In flow cytometry study, Raclg appeared to recognize 45.8% of carp Ig+, 14.5% of catfish Ig+ and <5% of tilapia Ig+ cells. The result suggest the heterogeniety between receptor immunoglobulins on B-like lymphocytes and soluble immunoglobulins in serum. It is crucial to obtain pure fish immunoglobulins to produce reagent antibodies as tools for the study of their specific immune response.
Animals
;
Antibodies
;
Carps*
;
Catfishes
;
Chromatography, Affinity
;
Electrophoresis, Polyacrylamide Gel
;
Flow Cytometry
;
Immunoblotting
;
Immunoglobulin G
;
Immunoglobulins*
;
Lymphocytes
;
Mice
;
Sepharose
;
Staphylococcal Protein A
;
Tilapia
5.A Case of Craniofacial Dysostosis: Crouzon's Disease.
Journal of the Korean Ophthalmological Society 1976;17(4):567-571
A monstrous faced, 60 years old famale patient was first seen in our clinic on May 1, 1976, complaining of diffuse abdominal pain. Throughout physical examination and x-ray study revealed a craniofacial dysostosis, which is rare in this age group, and other lab. data seemed normal.
Abdominal Pain
;
Craniofacial Dysostosis*
;
Humans
;
Middle Aged
;
Physical Examination
6.Estrogen and progesterone receptors in ovarian tumor with EIA monoclonal assay.
Jae Wook KIM ; Hye Ri SUNG ; Dong Kyu KIM ; Oh Seung YAN ; Chan Ho SONG
Korean Journal of Obstetrics and Gynecology 1993;36(7):2580-2589
No abstract available.
Estrogens*
;
Progesterone*
;
Receptors, Progesterone*
7.Effects of Histamine and Hydroxyzine on the Bladder Contraction of Rat.
Sung Kyu HONG ; Eun Chan PARK ; Seung June OH ; Hwang CHOI
Korean Journal of Urology 2000;41(3):435-443
No abstract available.
Animals
;
Histamine*
;
Hydroxyzine*
;
Rats*
;
Urinary Bladder*
8.Distribution of the Bovine Lens Antigen in the Ocular Tissues.
Journal of the Korean Ophthalmological Society 1976;17(1):53-58
Distribution of the antigens of soluble lens protein in the bovine ocular tissues was studied by Ouchterlony's double agar diffusion technique. Guinea pig anti-bovine-lens-serum was prepared by 4 weekly injections of the soluble protein of the bovine lens with complete Freund adjuvant. Three precipitation lines were observed between lens antigen and antiserum after 36 hours diffusion, and two precipitation lines on iris antigen and two precipitation lines on antigen mixture of the pigment epithelium and the choroid were observed after 36 hours diffusion. No precipitation line was observed on cornea antigen, vitreous antigen and retina antigen.
Agar
;
Animals
;
Choroid
;
Cornea
;
Diffusion
;
Epithelium
;
Freund's Adjuvant
;
Guinea Pigs
;
Iris
;
Retina
9.Expression of Apoptosis, bcl-2, and PCNA in Uterine Cervical Intraepithelial Neoplasia and Invasive Carcinoma.
Myoung Ja CHUNG ; Kyu Yun JANG ; Myoung Jae KANG ; Dong Geen LEE ; Byung Chan OH
Korean Journal of Pathology 1997;31(11):1180-1189
This study was undertaken to know the extent of apoptosis, expression of bcl-2 and proliferating cell nuclear antigen (PCNA) in uterine cervical intraepithelial neoplasia (CIN; 15 cases) and invasive carcinoma (27 cases) and to evaluate them as a prognostic marker. Apoptosis was analysed by using the in situ apoptosis detection kit and bcl-2 and PCNA were detected by the immunohistochemical method. The results were as follows: Apoptotic indices (AI) in the invasive carcinoma (mean: 4.3) were 10-times higher than that in the CIN (mean: 0.43). Bcl-2 was expressed 60% of the cases in the dysplastic cells of the CIN II and CIN III, 33.3% of cases in the invasive carcinoma and not expressed in the CIN I except basal cells. The expression of the PCNA was increased by the grades of CIN and was strong in invasive carcinoma. The mean survival time of the patient with invasive carcinoma was significantly decreased in the higher AI index (above 4.3) than in the lower AI index (below 4.3). There was no significant correlation between the extent of apoptosis and the expression of bcl-2. According to the above results, AI are able to be used as an independent prognostic marker in the invasive cervical carcinoma, and bcl-2 and PCNA have an important role in the tumorigenesis of uterine cervical carcinoma.
Apoptosis*
;
Carcinogenesis
;
Cervical Intraepithelial Neoplasia*
;
Humans
;
Proliferating Cell Nuclear Antigen*
;
Survival Rate
10.Detection of human papilloma virus in normal, dysplastic and invasive cervical cancer tissue by the polymerase chain reaction.
Jae Wook KIM ; Dong Kyu KIM ; Ki Suk OH ; Chan Ho SONG ; Uik Mook CHOI
Korean Journal of Obstetrics and Gynecology 1993;36(7):1865-1874
No abstract available.
Humans*
;
Papilloma*
;
Polymerase Chain Reaction*
;
Uterine Cervical Neoplasms*