Publications by authors named "Pyung Hwang"

A set of individually and co-doped (Tb+Sm): lithium borate glasses were synthesized by melt quenching. Photoluminescence properties were analyzed by excitation, emission, and decay dynamics. 1.

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Aims: As an alternative strategy to obtain large amounts of ginseng extract with high yield of ginsenosides, we have utilized culture of cambial meristematic cells (CMCs) from wild ginseng. The anti-tumor effects of methanol extract of ginseng CMCs (MEGC) and their action mechanisms were investigated.

Main Methods: Mice were intraperitoneally administered with MEGC, and we explored NK cell activity, suppression of in vivo growth of tumor cells and relevant molecule expression.

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Background And Objectives: Extralaryngeal structures have been known to not only play an important role in swallowing, but also have a significant influence on the voice during phonation. The aim of this study is to evaluate the effect of dynamic laryngeal movements on pitch control.

Subjects And Methods: Videofluoroscopic examinations were analyzed.

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Adrenocortical carcinoma (ACC) in pediatric and adolescent patients is rare, and it is associated with various clinical symptoms. We introduce the case of an 8-year-old boy with ACC who presented with peripheral precocious puberty at his first visit. He displayed penis enlargement with pubic hair and facial acne.

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Bo-yang-hwan-o-tang (BHT), an herbal decoction has been mainly used for improvement of blood flow in oriental medicine. Its in vivo immunomodulation was recently demonstrated but the effective mechanisms have not been described. This study was carried out to evaluate in vitro immunomodulatory activity of BHT.

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Cytotoxic CD8+ T cells (Tc) are a major effector cell population in protection against tumor growth and classified into Tc1 or Tc2 based on their cytokine-secreting profiles. However, their relative tumor protective roles remain undefined. In the present study, CD8+ memory T cells were obtained from mice given with CT26-IL 12 and tumor-specific Tc1 and Tc2 cells were induced by in vitro primary stimulation (1 degrees).

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