1.The Effects of Basic Fibroblast Growth Factor(bFGF)on Type I and VII Collagen Gene Expression in Cultured Dermal Fibroblast.
Young Wook RYOO ; Dong Won CHOI ; Kyu Suk LEE
Annals of Dermatology 1999;11(3):147-152
BACKGROUND: bFGF, a member of the fibroblast growth factor family, potently induces vascular smooth muscle cell proliferation and decreased synthesis of the collagens. OBJECTIVE: For further investigation of the effect of bFGF on extracellular matrix homeostasis in the skin, we evaluated the expression of type I and type VII collagen gene at the transcriptional levels. METHOD: We examined that recombinant human bFGF affects the expression of genes involved in ECM synthesis and remodeling in human dermal fibroblasts cultures as judged by Northern blot analysis. RESULTS: The steady state levels of type I and VII collagen gene mRNA were decreased with age dependent pattern up to 0.13 and 0.44 folds respectively. The transcriptional levels of type I collagen mRNA were increased by TGF-B, treatment but markedly decreased by bFGF as well as TNF-a. But there were no synergistic effects bFGF and TNF-a on type I collagen gene expression. The levels of type VII collagen gene expression were increased by both bFGF and TGF-B,. The TNF-a showed slightly antagnostic effects on type VII collagen gene expression. CONCLUSION: The type I and VII collagen gene expression in dermal fibroblasts is clearly subjected to modulation by the cytokines including bFGF with uncoordinate regulatory pathway. In addition to its function of vascular proliferation, bFGF also may play a major role in physiologic skin condition and in repair process such as formation of a stable dermoepidermal junction during skin wound healing.
Blotting, Northern
;
Cell Proliferation
;
Collagen Type I
;
Collagen Type VII
;
Collagen*
;
Cytokines
;
Extracellular Matrix
;
Fibroblast Growth Factors
;
Fibroblasts*
;
Gene Expression*
;
Homeostasis
;
Humans
;
Methods
;
Muscle, Smooth, Vascular
;
RNA, Messenger
;
Skin
;
Wound Healing
3.Early Results of Subclavian Artery Stenting.
Wook Bum PYUN ; Young Sup YOON ; Dong Hoon CHOI ; Yang Soo JANG ; Won Heum SHIM
Korean Circulation Journal 1999;29(5):481-486
BACKGROUND AND OBJECTIVES: Though the surgical intervention of subclavian artery stenosis has been effective, its high morbidity and mortality have limited its clinical application. In 1980 percutaneous balloon angioplasty of stenotic artery was introduced as a substitute for surgical intervention and subsequent reports have supported its efficacy noting that it is more effective when combined with stent. The purpose of this study was to assess the feasibility, safety, and efficacy of percutaneous intervention as an alternative or primary therapy for symptomatic subclavian artery stenosis. METHODS: Between September 1993 and October 1998, 17 lesions in 16 patients of symptomatic subclavian artery stenosis were enrolled as candidates for nonsurgical intervention. We performed percutaneous balloon angioplasty with stenting to the subclavian artery stenosis and evaluated the early results. RESULTS: 1)The patients had a mean age of 55+/-14 years and 13 of 16 patients were male. 2)Subclavian artery stenting was successful in 94% (16/17) of the lesion without significant complications. The cause of failure was suboptimal result after deployment of stent. 3)The types of stents deployed were Strecker stents in 4, Palmaz stents in 8, Wall stents in 3 and Jo stents in 2 cases. 4)The peak and mean pressure gradient reduced from 58.5+/-17.0 to 8.5+/-7.4 and 31.4+/-13.0 to 4.7+/-5.5 mmHg respectively (p<0.01) and the degree of luminal stenosis decreased from 92.5+/-8.5% to 10.0+/-14.3%. (p<0.01) CONCLUSION: Subclavian artery stenosis can be managed safely and effectively through percutaneous balloon angioplasty with stenting, with an excellent technical success rate and less morbidity and mortality particularly in patients coexisting other vascular and systemic diseases. However, the long-term patency and clinical effects should be warranted.
Angioplasty, Balloon
;
Arteries
;
Constriction, Pathologic
;
Humans
;
Male
;
Mortality
;
Phenobarbital
;
Stents*
;
Subclavian Artery*
;
Subclavian Steal Syndrome
4.Duodenal Obstruction due to Peptic Ulcer in Children.
Young Soo HUH ; Won Jong LEE ; Wook Dong KIM ; Bo Yang SUH ; Kwoing Bo KWUN
Yeungnam University Journal of Medicine 1989;6(1):43-46
Primary peptic ulcer disease in not known to be the result of underlying illness or trauma. These are most frequently duodenal or prepyloric. Since clinical features of peptic ulcer in children can easily be confused with many other disorders, the diagnosis is usually made when one of the more dramatic presentations, such as perforation, bleeding and obstruction. Recently, we experienced 2 cases of duodenal obstruction due to peptic ulcer in children. So, we report it with review of references.
Child*
;
Diagnosis
;
Duodenal Obstruction*
;
Hemorrhage
;
Humans
;
Peptic Ulcer*
5.Laboratory evaluation of blood coagulation system in FFP.
Sang Won CHO ; Gyeong Ran CHOI ; Tai Ju HWANG ; Dong Wook YANG
Korean Journal of Blood Transfusion 1992;3(1):35-40
No abstract available.
Blood Coagulation*
6.Intraperitoneal cisplatin chemotherapy for advanced ovarian cancer.
Ji Wook PARK ; Chan Hwa MOON ; Won Gue KIM ; Un Dong PARK
Korean Journal of Obstetrics and Gynecology 1993;36(10):3635-3641
No abstract available.
Cisplatin*
;
Drug Therapy*
;
Ovarian Neoplasms*
7.Intraperitoneal cisplatin chemotherapy for advanced ovarian cancer.
Ji Wook PARK ; Chan Hwa MOON ; Won Gue KIM ; Un Dong PARK
Korean Journal of Obstetrics and Gynecology 1993;36(10):3635-3641
No abstract available.
Cisplatin*
;
Drug Therapy*
;
Ovarian Neoplasms*
8.A Case of Chronic Lymphocytic Leukemia with Trisomy 12 detected by Fluorescence in situ Hybridization (FISH).
Deok CHO ; Won Pyo HONG ; Hyeouug Joon KIM ; Dong Wook RYANG
Korean Journal of Clinical Pathology 1997;17(5):689-693
We report a case of B-cell chronic lymphocytic leukemia (CLL) with trisomy 12 detected by FISH using chromosome 12 alpha-satellite Probe (Oncor , USA) in uncultured interphase cells. Chromosome studies did not produce an analyzable metaphase by standard short term culture and revealed only normal female karyotype by B cell mitogen (phorbol 12-myristate 13-acetate) stimulated 96 hr culture. The patient, a 59-year-old female, did not have hepatomegaly, splenomegaly, lymphadenopathy and any other symptoms. The peripheral blood of the patient showed marked lymphocytosis (WBC : 28,300/microL, Lymphocyte: 80%) and the diagnosis by immunophenotyping was B cell CLL:CD5, CDl9, CD2O, SmIg, HLA-DR positive.
Chromosomes, Human, Pair 12
;
Diagnosis
;
Female
;
Fluorescence*
;
Hepatomegaly
;
HLA-DR Antigens
;
Humans
;
Immunophenotyping
;
In Situ Hybridization*
;
Interphase
;
Karyotype
;
Leukemia, Lymphocytic, Chronic, B-Cell*
;
Lymphatic Diseases
;
Lymphocytes
;
Lymphocytosis
;
Metaphase
;
Middle Aged
;
Splenomegaly
;
Trisomy*
9.A Case of Chronic Lymphocytic Leukemia with Trisomy 12 detected by Fluorescence in situ Hybridization (FISH).
Deok CHO ; Won Pyo HONG ; Hyeouug Joon KIM ; Dong Wook RYANG
Korean Journal of Clinical Pathology 1997;17(5):689-693
We report a case of B-cell chronic lymphocytic leukemia (CLL) with trisomy 12 detected by FISH using chromosome 12 alpha-satellite Probe (Oncor , USA) in uncultured interphase cells. Chromosome studies did not produce an analyzable metaphase by standard short term culture and revealed only normal female karyotype by B cell mitogen (phorbol 12-myristate 13-acetate) stimulated 96 hr culture. The patient, a 59-year-old female, did not have hepatomegaly, splenomegaly, lymphadenopathy and any other symptoms. The peripheral blood of the patient showed marked lymphocytosis (WBC : 28,300/microL, Lymphocyte: 80%) and the diagnosis by immunophenotyping was B cell CLL:CD5, CDl9, CD2O, SmIg, HLA-DR positive.
Chromosomes, Human, Pair 12
;
Diagnosis
;
Female
;
Fluorescence*
;
Hepatomegaly
;
HLA-DR Antigens
;
Humans
;
Immunophenotyping
;
In Situ Hybridization*
;
Interphase
;
Karyotype
;
Leukemia, Lymphocytic, Chronic, B-Cell*
;
Lymphatic Diseases
;
Lymphocytes
;
Lymphocytosis
;
Metaphase
;
Middle Aged
;
Splenomegaly
;
Trisomy*
10.Clinical Study on Chronic Granulomatous Disease(CGD) -Occurrence in Siblings-.
Yong Hoon JUN ; Sung Won YANG ; Dong Wook KIM ; Hoan Jong LEE ; Joong Gon KIM
Journal of the Korean Pediatric Society 1994;37(6):794-803
To analyse the age of onset, etiologic microorganisms, clinical manifestations, managements and genetic variation of chromic granulomatous disease, the authors reviewed four patients who were diagnosed as CGD at Department of Pediatrics, Seoul National Univesity Children's Hospital. They were siblings in relationship-two of them were brothers, the others were brother-sister. @ES The results were as follows; 1) Initial manifestations developed within 1 year old, and lymphadenopathy associated with BCG vaccination was the most common. 2) In culture study of micro-organism, catalase positive microorganisms such as Staphylococcus aureus, Serratia marcescens, Coagulase (-) Staphylococcus, Enterococcus, Proleus vulgaris, Klebsiella pneumoniae, E. coli and fungus such as Candida albicans were isolated. In 2 cases, culture study revealed no growth. 3) Fever, lymphadenopathy, hepatomegaly, suppurative dermatitis and pneumonia were the most common manifestations. In most of cases, antituberculous medications were administered under the impression of tuberculosis without response. 4) Immunologic screening tests including B-cell system, T-cell system, and complement system were within normal limit except NBT test. 5) In spite of severe infections, NBT scores of all the cases were less than those of controls. Liver biopsies of 3 cases showed granuloma formation with characteristic yellow brown pigment-laden macrophages.
Age of Onset
;
B-Lymphocytes
;
Biopsy
;
Candida albicans
;
Catalase
;
Coagulase
;
Complement System Proteins
;
Dermatitis
;
Enterococcus
;
Fever
;
Fungi
;
Genetic Variation
;
Granuloma
;
Hepatomegaly
;
Humans
;
Klebsiella pneumoniae
;
Liver
;
Lymphatic Diseases
;
Macrophages
;
Mass Screening
;
Mycobacterium bovis
;
Pediatrics
;
Pneumonia
;
Seoul
;
Serratia marcescens
;
Siblings
;
Staphylococcus
;
Staphylococcus aureus
;
T-Lymphocytes
;
Tuberculosis
;
Vaccination