Jae-Suk Choi

In Soon Choi8
Yong-Ki Hong7
Joo Wan Kim7
Jae Hak Sohn6
8In Soon Choi
7Yong-Ki Hong
7Joo Wan Kim
6Jae Hak Sohn
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We found that the edible green seaweed Enteromorpha linza displayed potent antimicrobial activity against Prevotella intermedia and Porphyromonas gingivalis. To elucidate the active component of E. linza, isolation procedures were performed. The main active compound was isolated by polarity fractionation, Sephadex LH-20 gel chromatography, and reverse-phase(More)
Reductions in neurotrophic factors are implicated in synaptic dysfunction in the central nervous system, but exogenous neurotrophic factors with potential effects on neuritic regeneration and synaptic reconstruction could offer therapeutic and preventive strategies for treating memory-related neurological disorders. In an earlier effort to identify natural(More)
The present study was performed to evaluate the laxative effects of fermented rice extract (FRe) in normal rats. FRe was orally administered at doses of 100, 200, and 300 mg/kg once per day for 15 days, and the changes in fecal parameters (fecal pellet numbers, weights, and water contents), gastrointestinal transit ratio, fecal mucus contents, colonic(More)
The objective of the present study was to determine if Aureobasidium-originated beta-glucan (beta-glucan) modulated transforming growth factor (TGF)-β1-mediated wound healing. Proliferation of and collagen production by human dermal fibroblast cells were measured during in vitro dermal wound repopulation after treatment with 100, 10, 1, 0.1 and 0.01 mg/mL(More)
We evaluated the in vitro cytoprotective effects of Hoveniae Semen cum Fructus (HSCF) extracts against oxidative stress-mediated cell damage using HepG2 cells. Cytotoxic effects of HSCF extracts were observed in HepG2 cells, and the 50% inhibitory concentration was determined. Cytoprotective effects of sublethal doses of HSCF extracts were evaluated using a(More)
Proteinase inhibitor II (PI2), a compound derived from potato, is believed to help manage weight in humans when consumed as a dietary supplement. In this study, we evaluated the potential toxicity of PI2 in forty healthy swine weighing between 33 and 44 kg. The animals were treated daily for 28 days with oral doses of water, 300 mg, or 30 mg PI2. Additional(More)
The edible red alga Porphyra yezoensis is among the most popular marine algae and is of economic and medicinal importance. In the present study, the neurotrophic and neuroprotective activities of the ethanol extract of P. yezoensis (PYE) were investigated in primary cultures of hippocampal neurons. Results revealed that PYE significantly increased neurite(More)
This study evaluated the effects of Polycan, a β-glucan produced by Aureobasidium pullulans SM-2001, on calcium (Ca) bioavailability in an ovariectomy (OVX) model and a thyroparathyroidectomy (TPTX) model of osteoporosis in the SD rat. Polycan (62.5, 125, and 250 mg/kg body weight) was administered daily with an oral gavage for 4 weeks in both the OVX group(More)
Freshwater softshell turtle (Trionyx sinensis) extract has been used traditionally as a tonic soup, and to recover from physical fatigue. To support these claims, the forelimb grip strength of mice was measured after feeding a soft-shell turtle extract for 7 days. The T. sinensis extract significantly increased the grip strength to 1.25±0.07 N (P<0.01),(More)
We have investigated the efficiency of the production of ω-3 polyunsaturated fatty acid (PUFA)-rich diglycerides, monoglycerides, and ethyl esters and measured the effects of supercritical carbon dioxide (SC-CO2) density on inhibiting the production rates in the presence of excess ethanol. In contrast to a solvent-free system, the SC-CO2 system enhanced the(More)