Publications by authors named "Ae Kyung Lee"

Background: Significant inequalities in caries distribution among children in Germany have been reported, but small-scale areas remain understudied.

Aim: To examine spatio-temporal trends in children's dental caries at the small-area level in Berlin-Mitte.

Design: Routinely collected data from Berlin's annual Health Examination Surveys were used, which also include information on age, sex, country of origin, and residential area.

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ß-catenin is a key component of the Wnt signaling pathway and the abnormal accumulation of ß-catenin is characteristic of various types of cancer. Here we demonstrate that overexpression of Sox4 enhances ß-catenin/TCF activity by increasing the stability of ß-catenin. Sox4 increased the protein level of ß-catenin and its target gene cyclin D1 in a dose-dependent manner.

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Korea has National Health Insurance Program operated by the government-owned National Health Insurance Corporation, and diagnostic services are provided every two year for the insured and their family members. Developing a customer relationship management (CRM) system using data mining technology would be useful to improve the performance of diagnostic service programs. Under these circumstances, this study developed a model for diagnostic service management taking into account the characteristics of subjects using a data mining approach.

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Previously, we reported that oxidative stress caused by sulfur amino acid deficiency (SD) induces B cell translocation gene-1 (Btg-1), which belongs to the Apro family, in hepatocytes. In view of the impairment of immune function by protein restriction that causes SD, this study investigated whether SD or other oxidative stress inhibits iNOS and cytokine expression and induces Btg-1 in macrophages and explored the causal relationship of Btg-1 induction and repression of the genes. When macrophages were incubated in sulfur amino acid-deprived medium, lipopolysaccharide induction of iNOS, TNFalpha, IL-1beta, and IL-6 was significantly decreased compared to control.

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Pharmacokinetic parameters of theophylline and one of its metabolites, 1,3-dimethyluric acid (1,3-DMU), were compared after intravenous and oral administration of aminophylline, 5mg/kg as theophylline, to diabetes mellitus rats induced by alloxan (DMIA) or streptozotocin (DMIS), and their respective control rats. In DMIA and DMIS rats, expression of CYP1A2 and 2E1 increased approximately three times. Theophylline was metabolized to 1,3-DMU by CYP1A2 and 2E1 in rats.

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The purpose of this study is to report the changes of CYP2E1, CYP1A2, CYP2B1/2, CYP2C11, CYP3A23, and CYP3A2 expression and pharmacokinetics and tissue distribution of chlorzoxazone (CZX) and 6-hydroxychlorzoxazone (OH-CZX) in rats with acute renal failure induced by uranyl nitrate (U-ARF), and the role of CYP3A23 and CYP3A2 in the formation of OH-CZX in rats with U-ARF. In rats with U-ARF, CYP2C11 decreased to 20% of control, whereas CYP2E1 and CYP3A23 increased 2.3 and 4 times, respectively, compared with control.

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1. Sauchinone, a lignan isolated from Saururus chinensis (Saururaceae), is a diastereomeric lignan with cytoprotective and antioxidant activities in cultured hepatocytes. The effects of sauchinone on the inducible nitric oxide synthase (iNOS), tumor necrosis factor-alpha (TNF-alpha) and cyclooxygenase 2 (COX-2) gene expression and on the activation of transcription factors, nuclear factor-kappaB (NF-kappaB), CCAAT/enhancer-binding protein (C/EBP), activator protein-1 (AP-1) and cAMP-response element-binding protein (CREB) were determined in Raw264.

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Protein-calorie malnutrition (PCM), as one of global health problems, arises during protein and/or energy deficit due to disease and nutritional inadequacy. Previously, we showed that PCM elicited oxidative stress with activation of the phase II detoxifying gene expression, which was reversed by cysteine supplementation. As part of the attempts to identify the cellular adaptive responses and the associated gene expression during PCM, the current study was initiated to analyze the genes differentially expressed in the rat during PCM.

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