• Proceedings of KOSOMES biannual meeting
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• 2007.05a
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• pp.175-180
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• 2007

Until a recent date Wan-do Port have been made efforts to advance its marine policy toward the base of marine distribution industry. Therefore the administration of Wan-do port have been carried out many projects on improvements of harbour system very actively. The improvement of ship traffic system would be one of them. This research examined the general view of present situations of marine traffic system in Wan-do waters area and suggested improvements in ship route and anchorage.

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.28 no.4
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• pp.250-255
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• 2016

Ocean environmental data such as tide, wind, significant wave height etc. along the expected route were collected and analyzed to secure the safe towing and installation of floating pendulum wave energy converter(FPWEC) at planned sea area. Data from Korea Meteorological Administration(KMA) and Korea Hydrographic and Oceanographic Agency(KHOA) were reviewed and those were used to estimate the external forces exerting on the FPWEC during the towing operation. ANSYS system was used for the structural analysis of the FPWEC which is subject to complex environmental load to confirm the safety.

• Biomolecules & Therapeutics
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• v.20 no.3
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• pp.320-325
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• 2012

Rotavirus and hepatitis A virus (HAV) spread by the fecal-oral route and infections are important in public health, especially in developing countries. Here, two antigenic epitopes of the HAV polyprotein, domain 2 (D2) and domain 3 (D3), were recombined with rotavirus VP7, generating D2/VP7 and D3/VP7, cloned in a baculovirus expression system, and expressed in Spodoptera frugiperda 9 (Sf9) insect cells. All were highly expressed, with peak expression 2 days post-infection. Western blotting and ELISA revealed that two chimeric proteins were antigenic, but only D2/VP7 was immunogenic and elicited neutralizing antibody responses against rotavirus and HAV by neutralization assay, implicating D2/VP7 as a multivalent subunit-vaccine Candidate for preventing both rotavirus and HAV infections.

• Journal of Dental Anesthesia and Pain Medicine
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• v.22 no.6
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• pp.395-404
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• 2022

Hydroxyzine is one of the most popular oral sedatives used in pediatric dentistry. This study aimed to investigate the safety and possible side effects of sedation using hydroxyzine in pediatric dentistry. "Hydroxyzine," "Dental sedation," "Child," and "Safety" and their associated synonyms were searched using the Cochrane Library, Embase, PubMed, KISS, KMBASE, and KoreaMed databases. Academic information and portals of DBpia and RISS were also perused. Altogether, 340 papers were found, among which a total of 24 papers were selected according to the detailed criteria. Nine studies used hydroxyzine as monotherapy, and 10 studies compared its safety when hydroxyzine used as multitherapy. In addition, seven studies employed a drug regimen wherein hydroxyzine was one of the components. All these studies revealed that the adverse events specific to hydroxyzine usage were drowsiness and dryness of the mouth, and that there were respiratory complications due to a synergistic reaction of hydroxyzine. Although classified as a histamine blocker, hydroxyzine with its sedative, antiemetic, anticonvulsant, and anticholinergic properties is an oral sedative available without serious adverse events, If the proper dosage of the drug is used and its synergistic effects with other drugs are ascertained in the route of administration.

• International Journal of Stem Cells
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• v.16 no.4
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• pp.363-375
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• 2023

Stem cells are the foundational cells for every organ and tissue in our body. Cell-based therapeutics using stem cells in regenerative medicine have received attracting attention as a possible treatment for various diseases caused by congenital defects. Stem cells such as induced pluripotent stem cells (iPSCs) as well as embryonic stem cells (ESCs), mesenchymal stem cells (MSCs), and neuroprogenitors stem cells (NSCs) have recently been studied in various ways as a cell-based therapeutic agent. When various stem cells are transplanted into a living body, they can differentiate and perform complex functions. For stem cell transplantation, it is essential to determine the suitability of the stem cell-based treatment by evaluating the origin of stem, the route of administration, in vivo bio-distribution, transplanted cell survival, function, and mobility. Currently, these various stem cells are being imaged in vivo through various molecular imaging methods. Various imaging modalities such as optical imaging, magnetic resonance imaging (MRI), ultrasound (US), positron emission tomography (PET), and single-photon emission computed tomography (SPECT) have been introduced for the application of various stem cell imaging. In this review, we discuss the principles and recent advances of in vivo molecular imaging for application of stem cell research.

• The Korean Journal of Pesticide Science
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• v.17 no.3
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• pp.193-199
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• 2013

Burkholderia pyrrocinia CAB08106-4 has an anti-bacterial effect on Garlic White Rot caused by Sclereotium cepivorum and Sclereotium sp.. It is an environmentally friendly microbial product that prevents and controls a variety of phytopathogens involving Garlic White Rot caused by Sclereotium cepivorum and Sclereotium sp.. The aim of this study was to assess and to compare the pathogenicity of Burkholderia pyrrocinia CAB08106-4 by single exposure of rats through several routes such as oral, intranasal and intravenous. For the acute toxicity / pathogenicity study, the animals were sacrificed on days 3, 7, 14 and 21, and macroscopically observed their organs to examine the numbers of internally-retained pesticidal microbes. Clinical examinations were performed daily during administration period, and body weight gain was evaluated. In the study, no clinical sign, weight gain and mortality were observed in relation to the administration of test article. The significant changes of internal/external microbes by test article were not detected. The pathological findings in relation to the administration of the test article in the necropsy were not observed. It could be concluded that the microorganism was not toxic or pathogenic in rats via oral, intranasal and intravenous route.

• Journal of Acupuncture Research
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• v.29 no.6
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• pp.35-45
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• 2012

Objectives : This study was designed to investigate Effects of Sujeom powder(SJP) pharmacopuncture Injected at Jung-wan($CV_{12}$) in rats with caerulein-induced acute pancreatitis(AP). Methods : We examined changes of organ weight, histology, immunohistochemistry and gene expression of cycolooxygenase 2(COX-2) in the pancreas. Twenty adult male Sprague-Dawley rats were divided into four groups as follow: normal(Nor), caerulein-induced(Con), caerulein+SJP pharmacopuncture 0.2mL injected at Jung-wan($CV_{12}$)(SA), and caerulein+SJP pharmacopuncture 0.8 mL injected at Jung-wan($CV_{12}$)(SB) groups. Pancreatic tissues of rats from all groups were removed for histological observation and light microscopic examination. Interleukin-6(IL-6) levels were determined spectrophotometrically. Results : The ratio of pancreas/body weights was significantly(p<0.05) increased in the Con, the SA and the SB compared with the Nor, but was slightly decreased in the SA and in the SB groups compared with the Con. Caerulein administration has significantly(p<0.05) increased in the levels of amylase, but the SA, the SB significantly(p<0.05) decreased in the levels of these enzyme. The levels of amylase were increased significantly with caerulein administration, but were inhibited significantly in the SA and in the SB groups. Interleukin-6(IL-6) levels were significantly(p<005) increased in all groups compared with the Nor, especially in the SB. were significantly increased. The levels of Tumor necrosis factor(TNF)-${\alpha}$ levels were significantly increased in all groups compared with the Nor. In the conclusion, the datum of IL-6 and TNF-${\alpha}$ are suggested that the inflamation was still existed actively at a point of measurement(24 hours later). The COX-2 positive materials are observed in the pancreas from the Con, but these positive materials are decreased in the SJP pharmacopuncture at Jung-wan($CV_{12}$) treatment group. Conclusion : SJP pharmacopuncture injected at Jung-wan($CV_{12}$) is potentially capable of limiting pancreatic damage during AP by restoring the fine structure of acinar cells and tissues. Therefore we can say that SJP pharmacopuncture Injected at Jung-wan($CV_{12}$) may have beneficial effects in the treatment of caerulein-induded AP. Further studies about the adequate amount of the SJP pharmacopuncture and about more effective route of administration is still required.

• Tuberculosis and Respiratory Diseases
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• v.41 no.5
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• pp.568-573
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• 1994

Corticosteroids are widely used in the treatment of various diseases because of its potent antiinflammatory effect. According to recent knowledge, bronchial asthma is also chronic inflammatory disease. Therefore antiinflammtory agent such as cromoyln sodium and corticosteroid is highly recommended for treament of chronic bronchial asthma. Especially hydrocortisone succinate (Solu-Cortef) is commonly used for treament to acute asthmatic attack via intravenous injection due to have rapid therapeutic onset and short duration. Since Sunaga et al. reported acute asthma attack after hydrocortisone injection in 1973, several cases of bronchospam with or without angioedema and urticaria after intravenous injection of hydrocortisone have been reported. We experienced a case of severe bronchospasm and acute respiratory failure after intraveous injection of hydrocortisone succinate in 64 year-old female asthmatic patient who visited to emergency room for acute asthmatic attack. About 5 minites after Solu-Cortef injection, a severe bronchospasm with arterial hypoxemia was developed. In order to confirm the suspected relationship between the offending drug(Solu-Cortef) and acute bronchospasm, we examed intravenous and inhalation provocation test by hydrocortisone succinate and methylprednisolone(control). After administration of hydrocortisone succinate via intravenous and inhalation route, severe asthmatic attack occurred. But administration of intravenous methylprednisolone and orall triamcinolone and saline were not provoke bronchospasm. Skin test using hydrocortisone sodium succinate was also positive. Administration of hydrocortisone is very serious to asthmatic patient with hydrocortisone hypersensitivity. Therefore, the clinician must be have history taking about previous adverse reaction of steroid before its clinical use. And methylprednisone may be useful and safe drug to the treatment of acute asthmatic patient with hydrocortisone hypersensitivity.

• Toxicological Research
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• v.26 no.4
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• pp.275-283
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• 2010

Placenta transfer study in non-human primate (NHP) is one of the crucial components in the assessment of developmental toxicity because of the similarity between NHP and humans. To establish the method to determine placenta transfer in non-human primate, toxicokinetics of valproic acid (VPA), a drug used to treat epilepsy in pregnant women, were determined in pregnant cynomolgus monkeys. After mating, pregnancy-proven females were daily administered with VPA at dose levels of 0, 20, 60 and 180 mg/kg by oral route during the organogenesis period from gestation day (GD) 20 to 50. Concentrations of VPA and its metabolite, 4-ene-VPA, in maternal plasma on GDs 20 and 50, and concentrations of VPA and 4-ene-VPA in placenta, amniotic fluid and fetus on GD 50 were analyzed using LC/MS/MS. Following single oral administration of VPA to pregnant monkeys, concentrations of VPA and 4-ene-VPA were generally quantifiable in the plasma from all treatment groups up to 4-24 hours post-dose, demonstrating that VPA was absorbed and the monkeys were systemically exposed to VPA and 4-ene-VPA. After repeated administration of VPA to the monkeys, VPA was detected in amniotic fluid, placenta and fetus from all treatment groups, demonstrating that VPA was transferred via placenta and the fetus was exposed to VPA, and the exposures were increased with increasing dose. Concentrations of 4-ene-VPA in amniotic fluid and fetus were below the limit of quantification, but small amount of 4-ene-VPA was detected in placenta. In conclusion, pregnant monkeys were exposed to VPA and 4-ene-VPA after oral administration of VPA at dose levels of 20, 60 and 180 mg/kg during the organogenesis period. VPA was transferred via placenta and the fetus was exposed to VPA with dose-dependent exposure. The metabolite, 4-ene VPA, was not detected in both amniotic fluid and fetus, but small amount of 4-ene-VPA was detected in placenta. These results demonstrated that proper procedures to investigate placenta transfer in NHP, such as mating and diagnosis of pregnancy via examining gestational sac with ultrasonography, collection of amniotic fluid, placenta and fetus after Caesarean section followed by adequate bioanalysis and toxicokinetic analysis, were established in this study using cynomolugus monkeys.

• Journal of Fisheries and Marine Sciences Education
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• v.28 no.3
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• pp.692-700
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• 2016

This study was aimed at investigating the residual patterns of thiamphenicol (TP) in the cultured olive flounder (Paralichthys olivaceus) and black rockfish (Sebastes schlegeli) following oral administration. TP concentration were detected by high performance liquid chromatography with UV detector. The recovery rates of TP in serums ranged 77.05~97.23% (olive flounder) and 89.96~97.11% (black rockfish) for the concentration of 0.1, 1.0, $10{\mu}g/mL$, respectively. After single administration of TP (100 mg/kg body weight) by oral route in olive flounder ($700{\pm}50g$, $23{\pm}1.5^{\circ}C$) and black rockfish ($500{\pm}30g$, $23{\pm}1.5^{\circ}C$), the concentration in the serum was determined at 1, 5, 10, 15, 24, 30, 50, 168, 264 and 432 h post-dose. Two-compartment model was applied to analyze in the pharmacokinetics of TP administered to the fishes. In the serum of olive flounder, TP was detected on 10 and 15 hours after treatment were $10.08{\mu}g/mL$ and $10.06{\mu}g/mL$ as maximum level, respectively. In the serum of black rockfish, TP was detected on 15 hours after treatment were $8.88{\mu}g/mL$ as maximum level. Concentrations of TP to the fishes were not measurable at 432 hours (18 days) after treatment in all samples. Similar residual patterns of TP were revealed between the fishes. These results are helpful for estimating withdrawal time of TP which has been already in use for farmed fish treatment.