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Original Article
The neuroprotective effect of recombinant human erythropoietin via an antiapoptotic mechanism on hypoxic-ischemic brain injury in neonatal rats
Moon Sun Kim, Yoo Kyung Seo, Hye Jin Park, Kye Hyang Lee, Kyung Hoon Lee, Eun Jin Choi, Jin Kyung Kim, Hai Lee Chung, Woo Taek Kim
Clin Exp Pediatr. 2010;53(10):898-908.   Published online October 31, 2010
Purpose

The neuroprotective effects of erythropoietin (EPO) have been recently shown in many animal models of brain injury, including hypoxic-ischemic (HI) encephalopathy, trauma, and excitotoxicity; however, limited data are available for such effects during the neonatal periods. Therefore, we investigated whether recombinant human EPO (rHuEPO) can protect against perinatal HI brain injury via an antiapoptotic mechanism.

Methods

The left carotid artery was ligated...

The neuroprotective effect of mycophenolic acid via anti-apoptosis in perinatal hypoxic-ischemic brain injury
Ji Young Kim, Seung Ho Yang, Sun Hwa Cha, Ji Yeun Kim, Young Chae Jang, Kwan Kyu Park, Jin Kyung Kim, Hai Lee Chung, Eok Su Seo, Woo Taek Kim
Clin Exp Pediatr. 2007;50(7):686-693.   Published online July 15, 2007
Purpose : Mycophenolic acid (MPA), the active metabolite of mycophenolate mofetil (MMF), is a potent inhibitor of inosine-monophosphate dehydrogenase (IMPDH), a new immunosuppressive drug used. It was reported that MPA protected neurons after excitotoxic injury, induced apoptosis in microglial cells. However, the effects of MPA on hypoxic-ischemic (HI) brain injury has not been yet evaluated. Therefore, we examined whether MPA...
Expression of Expanded Polyglutamine Disease Proteins in Drosophila (Drosophila Polyglutamine Disease Models)
Sang Min Shin, Kyung Hoon Paik, Dong Kyu Jin
Clin Exp Pediatr. 2005;48(4):425-432.   Published online April 15, 2005
Purpose : Polyglutamine diseases are a group of diseases caused by the expansion of a polyglutamine tract in the protein. The present study was performed to verify if polyglutamine disease transgenic Drosophila models show similar dysfunctions as are seen in human patients. Methods : Polyglutamine disease transgenic Drosophila were tested for their climbing ability. And using genetic methods, the effects of...
IGF-I on the Expression of Gene Associated with Hypoxic Ischemic Brain Injury in the Neonatal Rats
Hyung-Shin Lee, Sang-Hyun Byun, Ren Zhe Ann, Kyu-Sang Song, Young-Ik Lee, Yoo-Jung Hahn, Yong-Hun Chung
Clin Exp Pediatr. 2001;44(7):796-807.   Published online July 15, 2001
Purpose : To investigate the effect of intraperitoneal injection of IGF-I after hypoxic ischemic brain injury on neuronal cell necrosis, apoptosis and expression of proapoptotic and antiapoptotic proteins bax and bcl-2, respectively. Methods : The right carotid artery was cut between the double ligation. Then allowed to recover for 30 minutes followed by exposure to 8% oxygen at 37℃ for...
Protective Effect of Probucol against Adriamycin-Induced Apoptosis in Cultured Rat Cardiac Myocytes
Sun-Ju Lee, Dong-Seok Lee, Yong-Wook Jung
Clin Exp Pediatr. 2000;43(6):746-754.   Published online June 15, 2000
Purpose : In adriamycin(ADR)-induced cardiomyopathy, several different mechanisms are suggested. However, little information is available regarding the role of apoptosis. In the present study, we examined the induction of apoptosis on ADR treatment and anti-apoptotic effects of probucol, a lipid-lowering drug, and we also studied the changes of bcl-2 expression in order to see the molecular mechanisms underlying the effect...
The Apoptosis and Expression of Bcl-2, Bcl-xS, Bax Proteins in Fetal Brain after Treating Pregnant Mice with Endotoxin
Sung Min Cho, Seung Sook Kim, Young Seung Hwang
Clin Exp Pediatr. 2000;43(1):97-104.   Published online January 15, 2000
Purpose : Apoptosis is active cell death which plays an important role in developing normal tissues. Various conditions such as genetic defects, drugs, ischemia or infections are known to induce apoptosis. We studied the effect of maternal infection on fetal brain development during pregnancy. Methods : We treated 46 C3H pregnant mice with lipopolysaccharide(LPS) or phosphat-buffered saline and observed the changes in apoptosis and...
Apoptosis, P53, bax and Bcl-2 Protein Expressions in Neonatal rat Hippocampus by Kainic Acid-induced Seizure
Shin Weon Yun, Soo Ahn Chae, Eung sang Choi, Byoung Hoon Yoo
Clin Exp Pediatr. 2000;43(1):85-96.   Published online January 15, 2000
Purpose : Apoptosis is a process of active cell death which has been suggested to be part of hippocampal cell loss caused by kainic acid(KA). Immature rats showed higher susceptibility and mortality to KA but did not develop recurrent seizure, long term behavioral or neuropathologic changes. We investigated whether this was due to age-dependent resistance, and elucidated the molecular mechanics which mediate P53-induced apoptosis,...
Effects of Angiotensin Converting Enzyme Inhibition into Apoptosis and Related Genes in the Neonatal Rat Kidney
Kee Hwan Yoo, Haewon Cheon, Byung Min Choi, Young Sook Hong, Joo Won Lee, Soon Kyum Kim
Clin Exp Pediatr. 1999;42(8):1086-1095.   Published online August 15, 1999
Purpose : The renin-angiotensin system plays an important role in renal growth and development. Exposuring the neonate to angiotensin converting enzyme(ACE) inhibitor increases mortality and results in growth retardation and abnormal renal development. ACE inhibition in the developing kidney reduces the renal expression of TGF-β1 and EGF, which may account for renal growth impairment. This study was designed to...
Immunohistochemical Study of Bcl-2 Oncoprotein Expression in Childhood Non-Hodgkin's Lymphoma
Sung Mee Kim, Jin Hwa Jung, Jeong Ho Lee, Jong Dae Jo, Young Tak Lim, Do Youn Park, Sun Kyeung Lee
Clin Exp Pediatr. 1997;40(9):1265-1274.   Published online September 15, 1997
Purpose : The aim of the present study was to assess the clinicopatholgical significance of Bcl-2 oncoprotein expression in childhood non-Hodgkin' s lymphoma(NHL). Methods : We have assessed 16 cases of childhood NHL during last 6 years from 1990 to 1995. Bcl-2 oncoprotein expression has been semiquantitatively analyzed in paraffin sections from 16 cases of childhood NHL with 39 control cases of adult NHL. The...
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