• Korean Chemical Engineering Research
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• v.46 no.1
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• pp.76-81
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• 2008

UV curable pressure sensitive adhesive (PSA) was made by blending the di-functional or hexa-functional urethane-acrylate oligomer with synthesized acrylic PSA. The change of adhesive property and removability were investigated at various oligomer contents under each oligomer. As the content of oligomer increased, the peel strength was increased before UV irradiation, but it was decreased after UV irradiation. Also, it was observed that the peel strength increased with decrease of storage modulus (G'), and that loss factor (tan ${\delta}$) of the adhesive material affected the adhesive properties and removability.

• BMB Reports
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• v.38 no.3
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• pp.266-274
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• 2005

High temperature requirement A (HtrA) and its homologues constitute the HtrA familiy proteins, a group of heat shock-induced serine proteases. Bacterial HtrA proteins perform crucial functions with regard to protein quality control in the periplasmic space, functioning as both molecular chaperones and proteases. In contrast to other bacterial quality control proteins, including ClpXP, ClpAP, and HslUV, HtrA proteins contain no regulatory components or ATP binding domains. Thus, they are commonly referred to as ATP-independent chaperone proteases. Whereas the function of ATP-dependent chaperone-proteases is regulated by ATP hydrolysis, HtrA exhibits a PDZ domain and a temperature-dependent switch mechanism, which effects the change in its function from molecular chaperone to protease. This mechanism is also related to substrate recognition and the fine control of its function. Structural and biochemical analyses of the three HtrA proteins, DegP, DegQ, and DegS, have provided us with clues as to the functional regulation of HtrA proteins, as well as their roles in protein quality control at atomic scales. The objective of this brief review is to discuss some of the recent studies which have been conducted regarding the structure and function of these HtrA proteins, and to compare their roles in the context of protein quality control.

• Journal of the Korean Chemical Society
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• v.20 no.2
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• pp.146-152
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• 1976

It was found that petroleum ether extract of White Ginseng had a very slightly stimulating effect on the RNA biosynthesis of Baker's yeast, while both ethanol extract of White Ginseng(WGpet-alc) and Red Ginseng Extract(RGE) showed a significant stimulating effect on the RNA biosynthesis and its activity to change mononucleotide composition of the yeast RNA was noticeable; RGE induced a remarkable decrease of AMP, CMP and especially of UMP, however a marked increase of GMP, and it was observed that the molar ratio of GMP was 78.5 % of all mononucleotides of the yeast RNA. It is of interest that these results are closely related with the stimulating effect of protein biosynthesis of Baker's yeast cells.

• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.10
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• pp.1595-1600
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• 2013

In the present study,effect of natural mulbelly leaf tea on DMEM MDCK cell line. Mulbelly leaf teas inhibited the proliferation in primery MDCK cells in a dose dependent manner. These results show that mulbelly teas potent inhibits the reactive oxygen species (ROS) and not destruction a component. Therefore, mulbelly teas might improve overall quality of the color and taste. And might be applied newly to development of componant mulbelly teas quality and biochemical change by ROS in living things.

• Korean Journal of Pharmacognosy
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• v.43 no.1
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• pp.22-26
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• 2012

The aim of this study was to evaluate the anti-inlfammatory effect of the extract of Zanthoxylum schinifolium on ulcerative colitis induced by 3% dextran sulfate sodium in the rat. The experiment animals were divided into six groups: control (normal), DDS-induced colitis, 1 mg/kg, 15 mg/kg and 150 mg/kg of the extract of Z. schinifolium and 150 mg/kg of 5-aminosalicylic acid (5-ASA) as comparative drug. Anti-ulcerative colitis effect was evaluated pathologically by disease activity index (DAI), the change of weight and myeloperoxidase (MPO) in colon mucosa. Treatment with 15 mg/kg and 150 mg/kg of the extract of Z. schinifolium significantly improved the gain of body weight and DAI as clinical symptoms, and reduced MPO and $PGE_2$ level as biochemical index. Especially, 150 mg/kg of the extract of Z. schinifolium showed markedly more improvement than the same dose of 5-ASA in all kind of index such as MPO, $PGE_2$ and DAI. These results suggest that Z. schinifolium mediated anti-inflammatory action on colorectal sites may be a useful therapeutic approach to ulcerative colitis.

• International Journal of Industrial Entomology and Biomaterials
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• v.3 no.2
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• pp.149-152
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• 2001

Effect of topical application with 10, 20 and 30 ${\mu}g$/ml testosterone propionate and estradiol -17${\beta}$ on the fourth and fifth instar bivoltine NB18 silkworm larvae Bombyx mori, on the glycogen and protein contents of the Fat body and trehalose and protein contents of the haemolymph has been studied. Glycogen content of the fat body was significantly decreased in both testosterone propionate and estradiol -17${\beta}$ treatment groups except in the group treated with 30 ${\mu}g$ testosterone propionate where the increase was not significant when compared with those of carrier controls. The increase/decrease in haemolymph trehalose content did not show any significant difference in all the treated groups. Protein content of the fat body significantly increased in 10 and 20 mg testosterone propionate and estradiol -l7${\beta}$ treated groups but in 30 mg treated groups the increase was not significant when compared with those of carrier controls. There was no significant change in the haemolymph protein content in all the testosterone propionate and estradiol -17${\beta}$ treated groups except in group treated with 10 ${\mu}g$ estradiol -17${\beta}$ where it showed a significant decrease when compared with that of carrier control.

• Journal of Veterinary Clinics
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• v.32 no.4
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• pp.338-342
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• 2015

A 12-year-old castrated male miniature Schnauzer had anorexia, vomiting, lethargy, and fever for four days. The dog had leukocytosis, thrombocytopenia, hypoglycemia, hypoalbuminemia, hyperbilirubinemia, increased hepatic enzymes on hematologic and biochemical examinations. On abdominal ultrasonographs, there was an enlarged gallbladder with hyperechoic irregular wall thickening. Echocardiography showed vegetative change and regurgitation of aortic and mitral valves. E.coli was identified through ultrasound guided percutaneous cholecystocentesis and bile culture. Bacterial cholecystitis and concurrent endocarditis were diagnosed. The dog was recovered from sepsis with antibacterial and aggressive supportive therapy.

• Advances in nano research
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• v.11 no.6
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• pp.657-665
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• 2021

The present work aimed to explore green approach via aqueous leaves extract of Murraya koenigii (ALEMk) for the synthesis of silver nanoparticles (AgNPsMk) in single step. The synthesis process was visualized with a color change and monitored by employing UV/Visible spectroscopy and a clear peak attained at 420 nm confirming the synthesis of AgNPsMk. The possible functional groups present in the extract which participated in the synthesis of AgNPsMk were identified with the help of FTIR spectroscopy. Further characterization using TEM images revealed the spherical shape of AgNPsMk with average particle size of 20 nm displaying well dispersion throughout the solution. Pronounced antioxidant activities of AgNPsMk at increased concentrations observed which evidencing strong radical scavenging ability. Moreover, AgNPsMk exhibited strong antibacterial behavior when tested against bacterial strains of Escherichia coli and Bacillus subtilis. Moving ahead, in vitro cytotoxicity work revealed potent cell viability loss appearing in AU565 and HeLa cancer cell lines on exposure to AgNPsMk at increased concentration. Finally, in vivo assessment carried out inside male Wistar rats indicated non toxic effect on examined liver tissues besides biochemical analysis including bilirubin, alkaline phosphtase (ALP) and serum glutamate pyruvate transaminase (SGPT) which found within the normal range when compared with control. The prior research work profoundly apprises the potential of green synthesized AgNPsMk to play a significant role in biomedical applications and formulations.

• Journal of Korean Society on Water Environment
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• v.39 no.4
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• pp.261-268
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• 2023

The benthic macroinvertebrates index (BMI) was developed based on the 5-day biochemical oxygen demand (BOD₅), which is the amount of biodegradable organic matter in stream water. However, benthic macroinvertebrates mainly live in the streambed substrate and are affected by the interaction of water quality and substrate. This study was conducted to examine the interactive relationship between water quality items (BOD₅, total phosphorus (TP), total suspended solids (TSS)) and substrate with BMI by performing statistical analyses (four-way analysis of variance, Pearson's correlation analysis, partial correlation analysis and multiple regression analysis). The data used in the analyses were collected from 19,915 sampling units at 1,937 sites in South Korea from 2010 to 2020. The interaction effect between BOD₅ and substrate types was confirmed through a four-way analysis of variance. Partial correlation analysis and multiple regression analysis estimated the degree of influence on the change in BMI value in the order of mean grain size of the substrate as (𝜱_m) > BOD₅ > TP > TSS. BMI can be regarded as an index that evaluates the comprehensive effects of water quality and streambed status, although it is an index that was developed based on the amount of biodegradable organic matter in a water column.

• The Journal of the Society of Stroke on Korean Medicine
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• v.18 no.1
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• pp.1-11
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• 2017

It is difficult to combine oriental and western medicine. Each medicine has a different academic background, perspective on the world, and studying methodology. The claim that two paradigms can not be combined is not obtained from an actual verification, but this means it is so hard to combine two medicines having different backgrounds. The amalgamation of oriental and western medicine should be phased in on the basis of the continuous reciprocal understanding and commitment. First, the strength and weakness of each medicine over the treatment and research are required to be identified. Then, a few complementary areas can be chosen enabling a trial of fusion on a small scale. A cycle of problem solving and a new research can be set by analyzing research results obtained through the implementation over a period of time. In other words, the researchers of oriental and western medicine should repeat a continuous and gradual complementary research process by identifying issues to be improved and complemented through a consensus. Once the methodology obtained through the process of problem solving and proficient implementation is established in a stable condition, a method to widen the fusion area by expanding the operating area and implementation method can be chosen. However, the integral system of oriental medicine shouldn't be substituted by mechanical idea or reductionism. What should be done primarily for oriental medicine is to objectify things through quantification. In particular, the oriental treatment should accept the microscopic diagnosis to determine the structure and observe the biochemical change.