Jae-Eun Pie

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In animal models of Parkinson's disease (PD), the toxicity of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) is mediated by oxidative stress, especially by nitric oxide (NO). Inhibition of NO synthase (NOS) activity in the brain produces a neuroprotective effect against PD induced by MPTP Green tea containing high levels of (-)-epigallocatechin(More)
Conditions that cause endoplasmic reticulum malfunction (ER stress) play a key role in the development of various human diseases including neurodegenerative diseases. Carnosine is an endogenous peptide, present in excitable tissues such as brain and skeletal muscle. Although there are reports suggesting that carnosine has a biological role independent of(More)
We investigated the influence of pinoline (0.01-1.5 mM) on microsomal membrane fluidity before and after rigidity was induced by oxidative stress. In addition, we tested the effect of pinoline in the presence of 1 mM melatonin. The fluidity in rat hepatic microsomes was monitored using fluorescence spectroscopy and it was compared to the inhibition of(More)
In this brief review the antioxidative actions of melatonin are summarized and they are discussed relative to several models of oxidative neurotoxicity. Melatonin is a ubiquitously acting antioxidant. It has been shown to scavenge the hydroxyl radical, peroxyl radical, singlet oxygen and the peroxynitrite anion; secondarily, it also scavenges the superoxide(More)
Lipid peroxidation is a degenerative chain reaction in biological membranes that may be initiated by exposure to free radicals. This process is associated with changes in the membrane fluidity and loss of several cell membrane-dependent functions. 5-methoxytryptophol (ML) is an indole isolated from the mammalian pineal gland. The purpose of this study was(More)
Zinc oxide (ZnO) nanoparticle is added in various materials and products such as paints, plastics, ceramics, glass, rubber, pigments and sunscreen. Especially, ZnO nanoparticles are widely used in UV protection, because of their property of absorption ultraviolet light. Despite the widespread use of ZnO nanoparticles, there are many unknowns in(More)
The aims of this study were to explore the relationships between goal specificity, goal difficulty and performance, and to determine if setting unrealistic goals would produce decreases in performance. The subjects were high school students from 15 schools and an attempt was made to control for the effects of social comparison. The schools were randomly(More)
PURPOSE This study examined the need for public communication about nanotechnologies and nanoparticles by providing a comparative analysis of the differences in risk awareness of nanotechnologies and nanoparticles between consumers and experts. METHODS A total of 1,007 consumers and 150 experts participated in this study. A questionnaire was prepared(More)
BACKGROUND The purpose of our study was to understand consumers' risk awareness and need for relevant information about nanotechnology and nanoparticles contained in products currently being sold in Korea. METHODS One thousand and seven adult consumers (aged 20-50 years) were randomly selected from all over South Korea between November 1 and 9, 2010. We(More)
Surface characteristics of various metallic implant materials has been known that influence the growth and healing in the implant-transplanted tissues. In recent years, the use of metallic implant materials was increased for the functional and structural recovery in damaged tissues. The aim of this study is to examine the effect of the dental implant(More)