1.Role of Heat Shock Protein, P70 in Spermatogenic Arrest.
Hyun Joo KIM ; Won Young SON ; Tae Young AHN ; Tae Ki YOON ; Kwang Yul CHA
Korean Journal of Urology 2000;41(1):129-137
No abstract available.
Heat-Shock Proteins*
;
Hot Temperature*
2.Role of Heat Shock Protein, P70 in Spermatogenic Arrest.
Hyun Joo KIM ; Won Young SON ; Tae Young AHN ; Tae Ki YOON ; Kwang Yul CHA
Korean Journal of Urology 2000;41(1):129-137
No abstract available.
Heat-Shock Proteins*
;
Hot Temperature*
3.Two Cases of Inflammatory Linear Verrucose Epidermal Nevus.
Bon Keal KOO ; Jong Sick CHA ; Hyang Bae KIM ; Young Ho SON ; Myong Yol KIM
Korean Journal of Dermatology 1983;21(1):137-141
Inflammatory linear verrucose epidermal nevus(ILVEN) is characterized by an early age of onset, predominance in females, pruritus, unresponsiveness to treatment, and a distinctive inflammatory and psoriasiform histologic appearance. We present two cases of typical ILVEN. One of them was a 16-year-old male, who had had a mild pruritic linear verrucose patch involving the right arm which grew slowly for about 8 years. The other case was a 14-year-old girl whose lesion appeared at the age of 13. This lesion was localized on the right posterior thigh and showed linear distribution and verrucose appearance. Histopathological findings of two cases showed hyperkeratosis with foci of parakeratosis, moderate to marked acanthosis, elongation of the rete ridges, and occasional slight spongiosis, and chronic inflammatory infiltration in the dermis.
Adolescent
;
Age of Onset
;
Arm
;
Dermis
;
Female
;
Humans
;
Male
;
Nevus, Sebaceous of Jadassohn*
;
Parakeratosis
;
Pruritus
;
Thigh
4.Three Dimensional Reconstitution of Oral Mucosal Keratinocytes and Its Biologic Characteristics.
In Ho CHA ; Jong In YOOK ; Young Sook SON ; Eun Ha LEE ; So Young JEONG ; Kyung Joo KIM ; Jin KIM
Korean Journal of Pathology 2000;34(3):181-189
The purposes of this study were to develop an in vitro co-culture model of epithelial tissue with dermal equivalent, cultured at an air-liquid interface, and to evaluate the effects of extracellular matrix and concentration of calcium and fetal bovine serum in medium to find optimized culture condition. Oral keratinizing epithelial cells in monolayer culture were grown in Mitomycin-treated 3T3 feeder. Primary cultured oral epithelial cells were reconstituted onto the dermal equivalents consisting of 3T3 fibroblast and type I collagen, and co-culture was grown at the air-liquid interface. The histomorphological development of reconstituted oral epithelium in vitro for 21 days revealed 10~12 layered statified epithelium, closely similar to the parakeratinized gingival epithelium. Neither laminin nor type IV collagen was able to induce keratinocyte differentiation. But a mixture of laminin and type IV collagen induced well-polarized keratinizing tissue with anchoring structure of basal cells. When the reconstituted oral epithelium was incubated in 1.0% and 0.5% serum-containing medium, the granular cell layers with orthokeratinization developed. The reconstituted epidermis generated in serum-free keratinocyte growth medium (KGM)-containing pituitary extract showed features of incomplete differentiation. The present study shows that the dermal equivalents containing fibroblasts will support epidermal morphogenesis and differentiation. And these results suggest that extracellular matrix and calcium concentration are important factors during the reconstitution of keratinizing epithelium in vitro.
Calcium
;
Coculture Techniques
;
Collagen Type I
;
Collagen Type IV
;
Epidermis
;
Epithelial Cells
;
Epithelium
;
Extracellular Matrix
;
Fibroblasts
;
Keratinocytes*
;
Laminin
;
Morphogenesis
;
Population Characteristics*
5.Relationship between magnesium and calcium to glucose stimulated insulin secretion in the perfused rat pancreas
Kun Ho YOON ; Soon Jip YOO ; Hyun Sik SON ; Moo Il KANG ; Kwan Soo HONG ; Bong Youn CHA ; Kwang Woo LEE ; Ho Young SON ; Sung Ku KANG
Journal of the Korean Diabetes Association 1991;15(1):63-71
7.Association between Timed Up and Go Test and Subsequent Functional Dependency
Ji Eun LEE ; Hyejin CHUN ; Young Sang KIM ; Hee Won JUNG ; Il Young JANG ; Hyun Min CHA ; Ki Young SON ; Belong CHO ; In Soon KWON ; Jong Lull YOON
Journal of Korean Medical Science 2020;35(3):e25-
BACKGROUND:
This study aimed to evaluate the association between baseline results of the Timed Up and Go (TUG) test and subsequent functional dependency occurrence.
METHODS:
From the National Health Insurance Service-Senior Cohort database, we identified 39,519 people who participated in the National Screening Program for Transitional Ages at the age of 66 during 2007–2008. Impaired mobility was defined as taking 10 seconds or longer to perform the TUG test. Functional dependency occurrence was defined as the initiation of receiving national Long-Term Care Insurance services—home care or admission to long-term care facilities. Cox proportional hazard regression models were used to assess the hazard ratios (HRs) for dependency occurrence according to baseline TUG test results.
RESULTS:
The mean follow-up period was 5.7 years. Occurrence rates of dependency were 2.0 and 3.4 cases per 1,000 person-years in the normal and impaired TUG groups, respectively. Impaired mobility was associated with a higher risk of functional dependency occurrence (adjusted HR [aHR], 1.65; 95% confidence interval [CI], 1.40–1.95; P < 0.001). Additionally, in the subgroup analysis for the participants with intact baseline activities of daily living, impaired mobility was associated with a higher risk of dependency occurrence (aHR, 1.65; 95% CI, 1.33–2.04; P < 0.001).
CONCLUSION
The TUG test might be a useful predictive marker of subsequent functional dependency occurrence. Intervention to prevent functional dependency may be helpful for older adults with impairment on the TUG test.
8.Molecular Epidemiologic Study of Streptococcus pyogenes Analyzed by T protein Serotyping and Pulsed Field Gel Elecrophoresis(PFGE) in Normal Children.
Jin Ah SON ; Don Hee AHN ; Kyu Jam HWANG ; Young Hee LEE ; Sung Ho CHA
Journal of the Korean Pediatric Society 2000;43(10):1330-1342
PURPOSE: In this study we tried to look at the spreading, duration of colonization, and acquisition of new streptococci which were obtained in one geographical area, as well as the bacteriologic and molecular epidemiology of normal school children carrying group A streptococci and their clonal relationship through the combined application of the serotype of T antigen and Pulsed Field Gel Electrophoresis(PFGE). METHODS: A total of 88 strains of group A streptococci were isolated from 396 normal school children. All isolates were classified in groups by Streptex and serotyped by T. agglutination. Restriction enzyme digestion of DNA was taken using Sma I. DNA fragments were separated by PFGE. RESULTS: A total of 33 strains were allocated their epidemiologic characteristics. Four out of 33 strains were not restricted by enzyme(Sma I). Twenty nine strains out of 33 strains showed 12 subtypes with 8-12 fragments between 40kbp and 500kbp of DNA fragments on PFGE. Eight strains of NT and T6 war same fragment patterns on PFGE, respectively. Three strains out of 4 strains of T8/25 were not restricted and the other one showed different, unique patterns. One strain out of 8 stains of T12 was not restricted, and the others were classified as 5 different subtypes. Two strains of Tl were different patterns from each other, and 2 strains of T4 showed the samefragment pattern CONCLUSION: T serotypes with PFGE will be useful as a screening and molecular epidemiologic method in a country where anti-M antisera is not available, after recognizing the advantages and disadvantages of M and T serotyping.
Agglutination
;
Antigens, Viral, Tumor
;
Child*
;
Colon
;
Coloring Agents
;
Digestion
;
DNA
;
Epidemiologic Methods
;
Epidemiologic Studies*
;
Humans
;
Immune Sera
;
Mass Screening
;
Molecular Epidemiology
;
Serotyping*
;
Streptococcus pyogenes*
;
Streptococcus*
9.Cryopreservation of human immature follicular oocytes.
Eun Kyung KIM ; Weon Young SON ; Hee June CHI ; Jung Jae KO ; Tae Ki YOON ; Kwang Yul CHA
Korean Journal of Fertility and Sterility 1992;19(2):163-168
No abstract available.
Cryopreservation*
;
Humans*
;
Oocytes*
10.Analysis of Readmission Patients after Lumbar Microdiscectomy.
Yong Chul CHI ; Byung Gil SON ; Eun Seok CHOI ; Si Ou LEE ; Jong Hyun SHIN ; Young Hoon CHA
Journal of Korean Neurosurgical Society 2000;29(6):772-777
No abstract available.
Humans