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Dive into the research topics where D Y Hwang is active.

Publication


Featured researches published by D Y Hwang.


Journal of the Neurological Sciences | 2006

The pattern of E2F1 and c-myb immunoreactivities in the CA1 region is different from those in the CA2/3 region of the gerbil hippocampus induced by transient ischemia

In Koo Hwang; Ki-Yeon Yoo; Byung Moon Cho; Hyung Sik Hwang; Sung Min Kim; Sae Moon Oh; Sun Kil Choi; D Y Hwang; Moo-Ho Won; Seung Myung Moon

In this study, we examined transient ischemia-induced changes in transcription factor E2F1 and c-myb expressions in the gerbil hippocampus after 5 min of transient forebrain ischemia. E2F1 immunoreactivity significantly increased in the CA1 region 6-12 h after ischemia/reperfusion. c-myb immunoreactivity increased mainly in CA1 pyramidal cells with time by 12 h after ischemia. Thereafter, E2F1 and c-myb immunoreactivities significantly decreased compared to those in the 12 h post-ischemic group. Four days after ischemia/reperfusion, E2F1 and c-myb immunoreactivities were detected in non-pyramidal cells. Ten days after ischemia, c-myb immunoreactivity increased again: at this time, astrocytes as well as non-pyramidal cells showed E2F1 and c-myb immunoreactivities. In the CA2/3 region, E2F1 and c-myb immunoreactivities mainly changed in non-pyramidal cells, and 10 days after ischemia, c-myb immunoreactivity was not expressed in astrocytes. In conclusion, E2F1 and c-myb significantly alter in pyramidal cells and express in astrocytes in the gerbil hippocampal CA1 region after transient ischemia. These results indicate that E2F1 and c-myb in the CA1 region after ischemic damage may be associated with delayed neuronal death.


Journal of Korean Medical Science | 1996

Expression of bFGF and VEGF in brain astrocytoma.

Jung Weon Shim; Koh Yc; Hye Kyung Ahn; Young Euy Park; D Y Hwang; Je G. Chi


Journal of Korean Neurosurgical Society | 1997

Clinical Analysis of Diffuse Axonal Injury(DAI) Diagnosed with Magnetic Resonance Image(MRI).

Chang Hyun Kim; Ho Kook Lee; Koh Yc; D Y Hwang


Journal of Korean Neurosurgical Society | 1997

Traumatic Pseudoaneurysm of the Right Posterior Auricular Artery.

Seung Myung Moon; Ho Kook Lee; Um Cs; Chi Heon Kim; Koh Yc; Yang I; D Y Hwang


Journal of Korean Neurosurgical Society | 1995

Dorsal Third Ventricular Cyst.

Chi Heon Kim; Ho Kook Lee; Koh Yc; D Y Hwang


Journal of Korean Neurosurgical Society | 2004

Prospective Follow-up Study of Prenatally Diagnosed Central Nervous System Anomalies.

Choi Hj; Jae Gon Moon; Ho Kook Lee; Kim Ch; Kyung-Hwa Lee; D Y Hwang


Journal of Korean Neurosurgical Society | 2003

Familial Occurrence of Moyamoya Disease in a Father and a Son.

Choi Hj; Jae Gon Moon; Ho Kook Lee; D Y Hwang


Journal of Korean Neurosurgical Society | 2002

The Usefulness of T2* Weighted Magnetic Resonance Image in the Diagnosis of Minute Traumatic Intracerebral Hemorrhage.

Myeong-Kyu Kim; Jae Gon Moon; Kim Hd; Chi Heon Kim; Ho Kook Lee; D Y Hwang


Journal of Korean Neurosurgical Society | 2000

The Magnetic Resonance Images and Clinical Features of the Asymptomatic Pineal Cysts.

Lim Kt; Sung-Hye Park; Shin Di; Byung-Moon Cho; Sae Moon Oh; D Y Hwang


Journal of Korean Neurosurgical Society | 2000

Comparision of the Two Groups between Autologous Bone Chips and Cage as Posterior Lumbar Interbody Fusion in Spondylolisthesis Patients.

Shin Pj; Chi Heon Kim; Jae Gon Moon; Ho Kook Lee; D Y Hwang

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Chi Heon Kim

Seoul National University Hospital

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