• Proceedings of the PSK Conference
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• 2003.10b
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• pp.118.1-118.1
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• 2003

SS cream and its revised formula, CJ-4001 is topical Chinese herbal drugs for premature ejaculation. To evaluate the genotoxic potentials of these drugs, micronucleus test using Acridine orange (AO) staining method was performed. Acridine orange (AO) staining is adopted in OECD guideline 474 and widely used in micronucleus test. In dose range finding study, no mouse was dead at 2000 mg/kg using single treatment subcutaneously. Therefore, 3 dose levels were chosen at 500, 1000, 2000 mg/kg. (omitted)

• Proceedings of the Korea Environmental Mutagen Society Conference
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• 2004.05a
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• pp.84-84
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• 2004

• Proceedings of the PSK Conference
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• 2003.10b
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• pp.243.2-244
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• 2003

Purpose: This study evaluated gender differences and extents of accumulation on chronic dose of CJ-1l555 using rats. Method: 0, 10, 50 and 200 mg/kg/day of CJ-11555 (0.5% CMC) were orally administered to rats for 28 days and observed toxicokinetic parameters. Plasma concentrations were analyzed by LC-MS/MS Result: Exposure to CJ-11555 increased with the increase in dose level for both sexes. Mean concentrations at 10 and 50 mg/kg/day were generally similar an Days 1 and 28, but were generally highter on Day 28 than on Day 1 at 200 mg/kg/day. (omitted)

• Proceedings of the PSK Conference
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• 2003.10b
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• pp.241.1-241.1
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• 2003

Purpose: The objective of the study was to elucidate the pharmacokinetics of CJ-11555, anti-cirrhotic agent, in different physical properties and vehicles. Methods: 8-week-old male intact rats were administered CJ-11555 either intravenously (20 mg/0.6 mL/kg, NMP:PEG400, 1:1) or orally (50 mg/2 mL/kg, various vehicles). Different particle sizes of CJ-11668 and various vehicles were applied to characterize CJ-11555 in vivo. Following the administration in rats, the plasma concentrations were determined by HPLC. (omitted)

• Proceedings of the Korean Society of Toxicology Conference
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• 2005.11a
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• pp.164-171
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• 2005

• Natural Product Sciences
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• v.26 no.4
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• pp.268-278
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• 2020

In this study, we investigated the chemical profile and effects of RW0117 (Artemisia argyi 65 .5 % ethanol extract) on gastric lesions in rats. We optimized and validated a method to obtain the chemical profile of RW0117. We then investigated the antioxidant and anti-inflammatory effects in vitro, and the protective effects on gastric lesions in vivo. The IC50 of 2,2-diphenyl-1-picrylhydrazyl free radical scavenging considering the antioxidant effects of RW0117 was 166.55 ㎍/mL, and the IC50 of nitric oxide scavenging considering the anti-inflammatory effects was 41.16 ㎍/mL. Oral administration of RW0117 at lower concentrations (25, 50, 100 mg/kg) had similar or greater effects than the daily intake conversion concentration (115mg/kg) of a health functional food (Avexol®) in the acetic acid-induced ulcer and the ethanol-induced gastric injury rat models. In addition, oral administration of RW0117 increased the expression of prostaglandin E2, which enhances the protective effect in the gastric mucosa in the ethanol-induced gastric injury rat model. These results suggest that RW0117 may have potential therapeutic uses in the protection of the gastric mucosa.

• Journal of Korean Society on Water Environment
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• v.28 no.6
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• pp.902-910
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• 2012

The photodegradation characteristics of 30 pharmaceuticals were investigated by batch experiments using Ultraviolet (UV) reactor. The investigated pharmaceuticals include antibiotics, analgesics and antiarrhythmic agents etc. Tested water was prepared by simultaneously spiking 30 pharmaceuticals into pure water, and each experiment was conducted using 3 types of UV lamps. As a result, batch experiments showed that reactions of all the investigated pharmaceuticals followed pseudo-first order reaction regardless of the applied UV lamps. Among the pharmaceuticals, Cyclophosphamide, 2-Quinoxaline carboxylic acid and Clarithromycin proved to be the most UV-resistant compounds. Contrarily, Ceftiofur, Diclofenac and Ketoprofen were easily degraded by all the UV lamps. Dissolved organic carbon (DOC) concentration hardly changed although the concentration of the pharmaceuticals concentration gradually decreased with time, indicating that the degradation of parent pharmaceuticals may produce their intermediates during UV treatment.

• Journal of Environmental Health Sciences
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• v.35 no.1
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• pp.45-52
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• 2009

In recent years, pharmaceuticals in the aquatic environment have become a matter of increasing public concern. Environmental risk assessment (ERA), including an exposure assessment, is considered the best scientifically based approach for evaluating the potential effects of pharmaceuticals on ecosystems. Computerized exposure models constitute an important tool in predicting environmental exposures of pharmaceuticals. This paper presents the applicability of an exposure model by comparing measured data of selected pharmaceuticals with predicted environmental concentrations from an exposure model. $PhATE^{TM}$ (Pharmaceutical Assessment and Transport Evaluation) model developed by the Pharmaceutical Research and Manufacturers of America (PhRMA) was adapted to run simulations for the Keum River. A set of 7 pharmaceuticals of high production in Korea was modeled. The PECs generated by the $PhATE^{TM}$ model that were then compared to the measured concentrations. The $PhATE^{TM}$ model predicted concentrations for 7 pharmaceuticals including acetaminophen, acetylsalicylic acid, erythromycin, ibuprofen, lincomycin, mefenamic acid, and naproxen were in good agreement with actual measured concentrations, which demonstrated the utility of $PhATE^{TM}$ as a predictive tool. In conclusion, $PhATE^{TM}$, although it does not intend to accurately represent reality, could be utilized for rapid predictions of the environmental concentrations of pharmaceuticals.

• Proceedings of the Korean Society of Toxicology Conference
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• 2005.05a
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• pp.175-175
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• 2005

• Proceedings of the Korea Environmental Mutagen Society Conference
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• 2002.05a
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• pp.114-114
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• 2002