1.A study on the stress analysis of three root-form implants with finite element analysis.
The Journal of Korean Academy of Prosthodontics 1993;31(1):129-150
No abstract available.
Finite Element Analysis*
2.The Distribution of CA-125 Level Among the Patients Who Underwent Hysterectomy.
Eun Seop SONG ; Jung Mook YOON ; In Hwa NOH ; Young Koo LIM ; Sung Ook HWANG ; Moon Whan IM ; Byoung Ick LEE ; Jong Hwa KIM
Korean Journal of Gynecologic Oncology and Colposcopy 2000;11(1):55-59
OBJECTIVES: To understand the importance of the serum level of Ca-125 among pelvic mass, we performed a study. METHOD: From January to December 1998, we performed the study. Before hysterectomy, we performed a blood sampling to know the serum level of Ca-125, After hysterectomy, we weighed the uterus and measured the thickness of endometrium and other histologic characteristics. RESULTS: We performed my research to 80 peoples. The relation between uterine weight and the serum level of Ca-125 is little, if ever(R2=0.0007), and the relation between the thickness of endometrium and the serum level of Ca-125 is also little, if ever(R2=0.0353). The relation between leiomyoma, the cycle of endometrium and the serum level of Ca-125 were also little, but there was a close relationship between adenomyosis and the serum level of Ca-125. CONCLUSION: There was little relationship between uterine weight and the serum level of Ca-125.
Adenomyosis
;
Endometrium
;
Female
;
Humans
;
Hysterectomy*
;
Leiomyoma
;
Uterus
3.The Change of Fetal Liver Length and Liver Volume by Ultra-sonography according to Gestational Age in Normal Pregnancy.
Kwoan Young OH ; Jee Hyun PARK ; In Hwa NO ; Young Koo LIM ; Eun Seop SONG ; Moon Whan IM ; Byoung Ick LEE ; Jong Hwa KIM ; Sun Hee CHEON ; Jungja AHN
Korean Journal of Obstetrics and Gynecology 2000;43(3):437-443
OBJECTIVE: The measurement of liver size can be used for the diagnosis of the fetal growth abnormality (FGR, macrosomia etc.). The purpose of this study was to evaluate a mathematical relationship between the fetal liver size(liver length or volume) and the gestational age in the normal pregnancies. Brief comparisons were also tried on the base of the degree of the correlation between liver length and its volume. METHODS: We collected 54 singleton pregnancies of 20 to 36weeks of gestation for measuring fetal liver length and 57 singleton pregnancies for measuring fetal liver volume. We used Combison 530 utrasonic machine(Kreztechnik AG, Zipf, Austria). RESULTS: There was significant correlation between liver size( length and volume) and gestation age. And the liver volume better correlated with gestational age than liver length(r=0.93 : r=0.78, p<0.0001, p<0.0001). CONCLUSION: Ultrasonic measurement of fetal liver size is a reliable indicator of fetal growth, especially liver volume. Therefore these data may have a potential value for the prediction of abnormal fetal growth(FGR, macrosomia).
Diagnosis
;
Fetal Development
;
Gestational Age*
;
Liver*
;
Pregnancy*
;
Ultrasonics
4.A Case of Childhood Hobnail Hemangioma.
Byoung Hwa ROH ; Kyu Uang WHANG ; Yun Mi KIM ; Moon Kyun CHO ; Young Lip PARK ; Jong Suk LEE
Korean Journal of Dermatology 2007;45(9):979-982
Hobnail hemangioma is a benign vascular tumor that typically presents as a small, single lesion on the skin of the trunk or limb. It occurs mainly in young or middle-aged adults (mean age: 30 years) but rarely in childhood. Histologically, hobnail hemangioma is characterized by a biphasic growth pattern, with dilated vascular spaces lined by hobnail endothelial cells in the superficial dermis, and collagen dissection narrow vascular channels in the deeper dermal parts, as well as inflammatory aggregates, fibrosis, and hemosiderin deposits. We report a case of hobnail hemangioma in a 10-year-old girl who had a violaceous papule surrounded by an ecchymotic halo on the left thigh. She underwent treatment with surgical excision with primary closure. To the best of our knowledge, our case is the first reported case of childhood hobnail hemangioma in Korean dermatological literatures.
Adult
;
Child
;
Collagen
;
Dermis
;
Endothelial Cells
;
Extremities
;
Female
;
Fibrosis
;
Hemangioma*
;
Hemosiderin
;
Humans
;
Skin
;
Thigh
5.Clinical Manifestations of Intracranial Complication Associated With Paranasal Sinus Infection.
Byoung Ki KIM ; Hwa Young LEE ; Hee Jung SONG ; Tae Hong KIM ; Moon Gu HAN ; Gun Sei OH
Journal of the Korean Neurological Association 2001;19(5):457-463
BACKGROUND: Intracranial complications of paranasal sinus infection are rare and may be misdiagnosed during an initial evaluation because they often show subtle symptoms, which include elusive physical and neurological findings and imaging. The late recognition of these conditions and the delayed treatment can increase morbidity and mortality rates. We aimed to characterize the typical clinical features of intracranial complications associated with sinusitis. METHODS: Twelve patients who visited the Eulji Medical Center from 1994 to 2000, with sinogenic suppurative intracranial lesions were reviewed. Medical records and radiological studies were reviewed retrospectively. RESULTS: There were 12 cases with 15 sinogenic intracranial complications. The ratio of males to female was 2 : 1. The ages of patients ranged from 16 to 81 (average: 46.7). Four cases had meningitis, four had focal cerebritis, three had cavernous sinus throm-bophlebitis, two had subdural empyema, and two had epidural abscess or empyema. The primary lesions of paranasal sinusitis were located at the sphenoid in three, ethmoid sinus in two, frontal sinus in one and the multiple sinus in six. The outcome revealed complete recovery in six cases, mild neurologic sequelae in three cases, death in two cases and recurrence in one case. CONCLUSIONS: The type of intracranial complication and origin of paranasal sinusitis may be changing. Cases in which such complications are suspected, in order for an early diagnosis, a MRI should be considered. The successful management of intracranial complications consists of timely antibiotics therapy combined with surgical drainage of the loculated infection. (J Korean Neurol Assoc 19(5):457~463, 2001)
Anti-Bacterial Agents
;
Cavernous Sinus
;
Drainage
;
Early Diagnosis
;
Empyema
;
Empyema, Subdural
;
Epidural Abscess
;
Ethmoid Sinus
;
Female
;
Frontal Sinus
;
Humans
;
Magnetic Resonance Imaging
;
Male
;
Medical Records
;
Meningitis
;
Mortality
;
Recurrence
;
Retrospective Studies
;
Sinusitis
6.The Usefulness of Diffusion: Weighted Magnetic Resonance Image in the Diagnosis of Neonatal Seizure.
Byoung Ju KIM ; Jae Eun YU ; Ok Hwa KIM ; Moon Sung PARK
Journal of the Korean Society of Neonatology 2002;9(1):82-89
PURPOSE: Conventional imaging study, such as CT and T1 or T2 weighted MRI, usually give valuable information, but cannot always differentiate early parenchymal lesion in the acute stage of hypoxic-ischemic brain injury from unmyelinated white matter in the neonate. Diffusion-weighted image already has been proven highly sensitive and specific for the detection of acute stroke in adult population. This study was performed to evaluate the usefulness of this technique in the diagnosis of neonatal seizure. METHODS: 11 neonates, aged from 1 to 6 days admitted at Ajou University Hospital for neonatal seizure, were studied with diffusion-weighted imaging and conventional images at within 72 hours of seizure onset. Follow-up MRIs were obtained from 4 patients at about 3 months of age. Comparisons were made among conventional T1, T2 weighted images, diffusion-weighted images and images from follow-up MRIs. RESULTS: 9 of 11 patients showed abnormal findings on diffusion-weighted images, 2 patients showed focal cerebral infarction and 7 patients showed diffuse injury consistent with HIE. Diffusion-weighted image showed more accurate images of involved lesion than T1 or T2 weighted images in some cases. But most of all, diffusion-weighted image could detect lesions of white matter injury which was not visualized on conventional MRI. The white matter injury later result in cortical atrophy and leukomalatic changes by follow-up MRI. CONCLUSION: Our study provides the usefulness of diffusion-weighted imaging in the evaluation of neonatal seizure along with conventional images. For the confirmation, a larger number of infants and clinical evaluation for development will be needed.
Adult
;
Atrophy
;
Brain Injuries
;
Cerebral Infarction
;
Diagnosis*
;
Diffusion*
;
Follow-Up Studies
;
Humans
;
Hypoxia-Ischemia, Brain
;
Infant
;
Infant, Newborn
;
Magnetic Resonance Imaging
;
Seizures*
;
Stroke
7.A Case of Eccrine Poroma on the Scalp.
Soo Jie PARK ; Byoung Hwa ROH ; Jong Suk LEE ; Moon Kyun CHO ; Kyu Uang WHANG
Korean Journal of Dermatology 2006;44(5):633-635
Eccrine poroma is a benign neoplasm, whicn is thought to originate from the eccrine sweat gland. Previous studies suggest that these are primarily lesions of the hairless acral surface. We report a clinicopathological case of a 30-year-old man who presented with a 2.0 by 1.2 cm sized, unusual scalp lesion, which proved to be an eccrine poroma. There has been no local recurrence in the 4 months since complete excision.
Adult
;
Humans
;
Poroma*
;
Recurrence
;
Scalp*
;
Sweat Glands
8.Expression of Heat Shock Protein 70 in Human Skin Cells as a Photoprotective Function after UV Exposure.
Byoung Hwa ROH ; Dae Hyun KIM ; Moon Kyun CHO ; Young Lip PARK ; Kyu Uang WHANG
Annals of Dermatology 2008;20(4):184-189
BACKGROUND: Human skin is exposed to various environmental stresses, such as heat, cold, and ultraviolet (UV) radiation. Heat shock proteins (HSPs) induced by temperature elevations, as a physiologic response to mediate repair mechanisms and reduce cellular damage. OBJECTIVE: The purpose of this study was to investigate the induction of HSPs in human skin cells after UV exposure. METHODS: We performed immunoblotting using a specific monoclonal antibody to the HSP70 family, one of the best-conserved stress proteins in humans, with cultured normal human keratinocytes, A431 cells, human melanocytes, SK30 cells, and human dermal fibroblasts (HDF). RESULTS: Our results indicated that high expression of HSP70 in the unstressed state was noted in epidermal cells, including normal human keratinocytes, A431 cells, human melanocytes, and SK30 cells, but epidermal cells showed no additional up-regulation of HSP70 after UV irradiation. On the other hand, HDF expressed very small amounts of HSP70 at baseline, but significantly higher amounts of HSP70 after UV exposure. CONCLUSION: These findings suggest that constitutive expression of HSP70 in epidermal cells may be an important mechanism for protection of the human epidermis from environmental stresses, such as sunlight exposure.
Cold Temperature
;
Epidermis
;
Fibroblasts
;
Hand
;
Heat-Shock Proteins
;
Hot Temperature
;
HSP70 Heat-Shock Proteins
;
Humans
;
Immunoblotting
;
Keratinocytes
;
Melanocytes
;
Skin
;
Sunlight
;
Up-Regulation
9.A Case of Laugier-Hunziker Syndrome.
Byoung Hwa ROH ; Kyu Uang WHANG ; Chan Hyuk PARK ; Moon Kyun CHO ; Young Lip PARK ; Jong Suk LEE
Korean Journal of Dermatology 2007;45(7):751-753
Laugier-Hunziker syndrome (LHS) is a rare acquired benign macular hyperpigmentation of the lips and oral mucosa which is often associated with longitudinal melanonychia. LHS is known to be an entirely benign condition with no systemic manifestations, which requires patient reassurance as the only intervention. The significance of this condition is due to its inclusion in differential diagnoses of pigmentary disorders of the oral mucosa, especially Peutz-Jeghers syndrome. We report a case of Laugier-Hunziker syndrome in a 66-year-old woman who presented with longitudinal pigmented bands on her fingernails and multiple, pigmented macules on the lip and tongue.
Aged
;
Diagnosis, Differential
;
Female
;
Humans
;
Hyperpigmentation
;
Lip
;
Mouth Mucosa
;
Nails
;
Peutz-Jeghers Syndrome
;
Tongue
10.A Study of Apoptosis in Pemphigus Vulgaris.
Byoung Hwa ROH ; Kyu Uang WHANG ; Moon Kyun CHO ; Young Lip PARK ; Jong Suk LEE ; Chang Woo LEE
Korean Journal of Dermatology 2007;45(7):650-658
BACKGROUND: Pemphigus vulgaris is an autoimmune bullous dermatoses of skin and mucosa characterized by loss of adhesion between keratinocytes, a process known as acantholysis. Apoptosis, programmed cell death, may participate in pathogenesis of intercellular detachment and loss of cell-matrix interaction. OBJECTIVE: This study was designed to investigate the induction of apoptosis in the pemphigus lesional epidermis and to elucidate the mechanism of apoptosis induced by pemphigus sera. METHODS: Hoechst 33342 staining was performed to determine the induction of apoptosis in the pemphigus lesional epidermis. In addition, we used HaCaT cells treated with pemphigus sera and analyzed the expression of caspase-3, caspase-8, caspase-9 and bcl-2, bcl-xL, bax, bak by the RT-PCR method. RESULTS: In Hoechst 33342 staining, typical findings of apoptosis were observed in the pemphigus lesional epidermis showing acantholysis. RT-PCR showed the upregulation of caspase group (caspase-3, caspase-8, caspase-9), the downregulation of antiapoptotic bcl-2 family (bcl-2, bcl-xL) and the upregulation of proapoptotic bcl-2 family (bax, bak). CONCLUSION: These results suggest that apoptosis may be associated with acantholysis of pemphigus lesional epidermis and may play an important role in the pathogenesis of pemphigus.
Acantholysis
;
Apoptosis*
;
Caspase 3
;
Caspase 8
;
Caspase 9
;
Cell Death
;
Down-Regulation
;
Epidermis
;
Humans
;
Keratinocytes
;
Mucous Membrane
;
Pemphigus*
;
Skin
;
Skin Diseases, Vesiculobullous
;
Up-Regulation