1.A study on the change of the lymphocyte subsets after splenectomy by flow cytometer.
Hoi Sang JEONG ; Baik Hwan CHO ; Yong HWANG
Journal of the Korean Surgical Society 1992;43(4):574-584
No abstract available.
Lymphocyte Subsets*
;
Lymphocytes*
;
Splenectomy*
2.The comparision of NST, umbical artery velocimetry and amniotic fluid index in assessing the pregnancy outcomes of high risk pregnancies.
Yong Won PARK ; Jae Sang CHO ; Chan Ho SONG
Korean Journal of Obstetrics and Gynecology 1993;36(7):1364-1368
No abstract available.
Amniotic Fluid*
;
Arteries*
;
Female
;
Pregnancy
;
Pregnancy Outcome*
;
Pregnancy*
;
Rheology*
3.A clinical study of involutional blepharoptosis.
Sang Hoon CHA ; Yong Geun CHO ; Sung Yul AHN
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1993;20(5):1023-1029
No abstract available.
Blepharoptosis*
4.Electrical Stimulation ofCongenital Pseudarthrosis of the Tibia: a case report
Sang Hoon LEE ; Duk Yong LEE ; In Ho CHO
The Journal of the Korean Orthopaedic Association 1980;15(2):350-355
Osseous union of congenital pseudarthrosis of the tibia remains today a formidable challenge to orthopedic surgeons. Recently clinlcal studies of nonunion, congenital pseudarthrosis, and fresh fracture suggest that the electical stimulation enhances the union rate and shortens the healing time. We treated a case of congenital pseudarthrosis of the tibia by combined Boyds dual onlay graft and direct current electrical stimulation. A flrm clinical and radiological union was obtained at four months posfoperatively.
Electric Stimulation
;
Inlays
;
Orthopedics
;
Pseudarthrosis
;
Surgeons
;
Tibia
;
Transplants
5.A Case of AtypicalLichen Nitidus.
Dou Hee YOON ; Sang Hyun CHO ; Si Yong KIM ; Baik Kee CHO
Korean Journal of Dermatology 1995;33(4):794-797
Lichen nitidus, characterized by its typical clinical and histopathologic findings, is an uncomrnon chronic dermatosis of unknowned etiology. The distribution of this disease is most often localized, but in some cases it may becorne generalized. Some authors suggested that lichen nitidus is a variant of lichen planus in terms of its coincidence, ultrastructural and immunophenot,ypic studies. We report herein a case of lichen nitidus which presents dark brown linear, grouped, or confluent papules on the face, cheat, and upper extremities, accompanying with the histopathologic findings of pigmentary incontirence in the portion of claw clutching a ball appearance. This report suggests that lichen nitidus shows hyperpigmentation clinically and could be one of the dermatoses which exhibit pigmentavy incontinence in a histopathologic study.
Animals
;
Hoof and Claw
;
Hyperpigmentation
;
Lichen Nitidus
;
Lichen Planus
;
Skin Diseases
;
Upper Extremity
6.Amplification of c-myc oncogene and detection of point mutation of c-K-ras oncogene by paired polymerase chain reaction in human colorectal carcinoma.
Cho Hyun PARK ; Won Il CHO ; Suk Kyun CHANG ; Sang Yong CHOO
Journal of the Korean Cancer Association 1991;23(4):683-692
No abstract available.
Colorectal Neoplasms*
;
Humans*
;
Oncogenes*
;
Point Mutation*
;
Polymerase Chain Reaction*
7.A case of lichen aureus.
Sang Hyun CHO ; Tae Yoon KIM ; Si Yong KIM ; Baik Kee CHO ; Won HOUH
Korean Journal of Dermatology 1992;30(3):402-406
No abstract available.
Lichens*
8.Four Cases of Eccrine Spiradenoma.
Dou Hee YOON ; Si Yong KIM ; Sang Hyun CHO ; Dong HOUH ; Baik Kee CHO
Korean Journal of Dermatology 1995;33(1):140-144
Eccrine spiradenoma is a txnign, painful tumor of the skin, which probably originates in the coil of the eccrine sweat glands and presents a characteristic clinical and pa.hological picture. However recently, the weakness and inconsistency of the enzymes histochemican, actions and electron microscopic findings, and the presence of numerous undifferentiated and indetirn, inate cells suggest a rather low degree of differentiation. We present herein four cases of eccrine spiradenoma which show livrse histopat.hologic characteristics including typical rosette-like structure, ductal structure, vacuar structure and mixed type, respectively. This report may support the premise that eccrine spiridinoma is defived not only from the eccrine duct but also from pluripotential stem cells.
Skin
;
Stem Cells
;
Sweat Glands
9.Expression of Retinoblastoma Protein in Cutaneous Squamous Cell Carcinomas and Basal Cell Carcinomas.
Sang Yoon CHO ; Ho Beom AHN ; Dae Young KIM ; Sam Yong LEE ; Beck Hyun CHO
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(2):199-203
There is increasing evidence that inactivation of tumor-suppressor genes can promote tumor growth. Retinoblastoma protein (pRb) is the product of the retinoblastoma gene located on chromosome 13q14. pRb negatively regulates cell growth when functioning normally. Mutational inactivation of the Rb gene has been observed in retinoblastomas, osteosarcomas and soft tissue sarcomas. Recently, several other human cancers have also been shown to carry abnormalities of the Rb gene. The potential role of the Rb gene in cutaneous squamous cell carcinomas (SCCs) and basal cell caicinomas (BCCs), has not been determined and was the focus of this study. Immunohistochemical expression of pRb in 16 cutaneous SCCs and 17 BCCs was examined. The expression of PCNA was studied in parallel to assess the cellular proliferation rate in these lesions. The pRb and PCNA immunoreactivity were localized to the nuclei of tumor cells. A few pRb and PCNA positive cells were seen in normal squamous epithelium, sebaceous glands, sweat glands and hair follicles. The loss of expression of pRb was seen in 3 of 16 SCCs(18.8%) and 6 of 17 BCCs (35.3%). PCNA immunoreactivity was slightly high in pRb-negative or lower-positive cases. PCNA immunoreactivity was similar to that produced by pRb in some cases. These results suggest that mutational inactivation of the Rb gene may be related to the carcinogenesis of cutaneous SCC and BCC, though the frequency is relatively low.
Carcinogenesis
;
Carcinoma, Basal Cell*
;
Carcinoma, Squamous Cell*
;
Cell Proliferation
;
Epithelium
;
Genes, Retinoblastoma
;
Hair Follicle
;
Humans
;
Osteosarcoma
;
Proliferating Cell Nuclear Antigen
;
Retinoblastoma Protein*
;
Retinoblastoma*
;
Sarcoma
;
Sebaceous Glands
;
Sweat Glands
10.A clinical observation on hearing disturbance in patients with diabetes mellitus.
Sang In NAM ; Jae Min CHO ; Jung Yong OH ; Kyoung Jun PARK ; Chin Kyu CHO
Korean Journal of Otolaryngology - Head and Neck Surgery 1993;36(4):640-650
No abstract available.
Diabetes Mellitus*
;
Hearing*
;
Humans