1.Clinical characteristics in patients with biliary obstruction diagnosed by 99mTc-DISIDA scan: in 9 cases with normal ultrasonography findings.
Bong Chul PARK ; Soo hyun YANG ; Dong Ho CHE ; Sung Ki PARK ; Jong Hoon BYUN
Korean Journal of Nuclear Medicine 1992;26(1):82-85
No abstract available.
Humans
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Technetium Tc 99m Disofenin*
;
Ultrasonography*
2.Peritoneal dialysis in spinal cord injured patient.
Keun LEE ; Soo Hyun YANG ; Dong Ho CHE ; Bong Chul PARK ; Jun Gu JO ; Jong Hoon BYUN
Korean Journal of Nephrology 1991;10(1):126-128
No abstract available.
Humans
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Peritoneal Dialysis*
;
Spinal Cord*
3.Radiographic Analysis of the Tibial Axis on the Antero-posterior and Lateral view of Knee.
Jae Bong CHUNG ; Chang Dong HAN ; Ick Whan YANG ; Jin Ho CHE
Journal of the Korean Knee Society 2005;17(1):58-63
PURPOSE: The purpose of this study is to evaluate the use of plain knee films in assessing the position of tibial component after total knee arthroplasty. MATERIALS AND METHODS: Plain radiological antero-posterior(AP) and lateral view of tibia of 51 adults (mean age: fifty-years old) were taken. On AP view, the medial angles between tibia plateau and mechanical, anatomical and proximal anatomical axis of tibia were measured, and then correlation of each angle and the angle between the tibia plateau and anatomical axis were assessed. On lateral view, the posterior angle formed between the medial tibial plateau and anatomical, proximal anatomical axis, anterior and posterior cortex of proximal tibia were measured, and then correlation of each angle and the angle between the medial tibial plateau and anatomical axis were assessed. RESULTS: On tibial AP view, both axes had significant correlation(p<0.05) with the anatomical axis. The anatomical axis of proximal tibia was closest to it. On lateral view, all three axes had significant correlation(p<0.05) with anatomical axis. Among these, the anterior cortex of proximal tibia was closest to it. CONCLUSION: The position of the tibia component and posterior slope after total knee arthroplasty can be measured on plain knee X-rays using anatomical axis and the anterior cortex line of proximal tibia.
Adult
;
Arthroplasty
;
Axis, Cervical Vertebra*
;
Humans
;
Knee*
;
Tibia
4.The Role of Endothelin Receptor A during Myelination of Developing Oligodendrocytes.
Kyung Jin JUNG ; Dong Woon KIM ; Ha Na LEE ; Young Sook LEE ; Sung Joong LEE ; Jeong Hwan CHE ; Young Ho LEE ; Byeong Cheol KANG
Journal of Korean Medical Science 2011;26(1):92-99
Endothelin (ET)-1 and its receptors (ETA and ETB receptor) are present in the central nervous system. ET exerts biological effects on gliogenesis and glial cell functions. In order to define a possible mechanism of ETA receptor signaling, the distribution of the ETA receptor in developing oligodendrocytes and the effects of ET-1 on the myelination of oligodendrocytes were examined. ETA receptor immunoreactivity was confined to the perivascular elements of the blood vessels during early postnatal development. However later in development, ETA receptor immunoreactivity was no longer observed in the vessels but became localized to the myelinating oligodendrocytes of the primitive corpus callosum of the white matter, apart from the vessels. ET-1 induced myelin basic protein (MBP) in primary oligodendrocyte precursor cell culture though the ETA receptor and was blocked by an ETA receptor antagonist. In addition, ET-1 evoked the release of Ca2+ which is a central regulator of oligodendrocyte differentiation. Our results provide a link between ET-1 and its ETA receptor and myelination during oligodendrocyte differentiation.
Animals
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Brain/pathology
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Calcium/metabolism
;
Calcium Signaling
;
Cells, Cultured
;
Endothelin-1/metabolism/physiology
;
Mice
;
Mice, Inbred ICR
;
Myelin Basic Proteins/genetics/metabolism
;
Myelin Sheath/*physiology
;
Oligodendroglia/cytology/*metabolism
;
Rats
;
Rats, Sprague-Dawley
;
Receptor, Endothelin A/metabolism/*physiology