• Proceedings of the Korean Society of Toxicology Conference
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• 2003.10b
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• pp.132-132
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• 2003

In this GLP study, 4 study groups of 12 Sprague-Dawley (SD) rats/sex were given vehicle, or 1,000, 1,500, or 2,000 mg/kg/day Sophora Japonica Linne Seed Extract (SE) for 13 weeks. Standard endpoints in this study included mortality, clinical observations, body weight, food and water consumption, ophthalmoscopic examination, urinalysis, hematology, serum biochemistry, organ weights, gross anatomic pathology and histopathology.(omitted)

• 대한생식의학회:학술대회논문집
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• 1996.11a
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• pp.60.1-60.1
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• 1996

• 한국생물공학회:학술대회논문집
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• 2003.10a
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• pp.717-720
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• 2003

A chromogenic biosensor employing microfluidics on a chip has been developed for the determination of high-density lipoprotein (HDL) cholesterol (HDL-C) in human serum. We have investigated a plain and effective method to immobilize enzymes within the microchip without chemically modifying micro-channel or technically micro-fabricating column reactor and fluid channel network. In assessing risk factors of coronary heart disease, a micro-chip system would minimize requirements of instrument and reagent handling.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.148-149
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• 2001

Protein inhibitors are proteins or peptides capable of inhibiting catalytic activities of proteolytic enzymes. They are grouped primarily as either serine, cysteine, aspartic or metallto-proteinase inhibitors. Pretense inhibitors have been hewn since the end of the last century in nematodes and human blood serum, and their ubiquitous distribution in microorganisms, animals and plants has been widely documented. (omitted)

• Tuberculosis and Respiratory Diseases
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• v.72 no.2
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• pp.163-168
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• 2012

Background: Cigarette smoke induced release of iron could alter iron metabolism in the lungs of chronic smokers and contribute to the increase in the total oxidative burden on the lungs of smokers. In previous studies, ferritin levels of bronchoalveolar lavage fluid in smokers were elevated. The aim of the present study was to investigate the relationship between serum ferritin concentration, smoking and lung function in Korean people. Methods: This study was based on the data acquired in the second year (2008) of the Forth National Health and Nutrition Examination Survey that was conducted from 2007 to 2009. The analysis included 2,244 subjects who were older than 20 years and had complete data from both lung function test and serum ferritin concentration. Among participants, 1,076 were male and 1,168 were female. Results: Mean serum ferritin concentrations in males were $120.3{\pm}80.1{\mu}g/L$ and $47.9{\pm}39.8{\mu}g/L$ in females. There were no differences in serum ferritin concentrations between non-smokers and smokers after adjusting for age, body mass index, and amounts of alcohol. Serum ferritin concentrations were associated with smoking amounts by simple linear regression but not associated with smoking amounts after adjustment with age, body mass index, and amounts of alcohol in both males and females. Lung function was not associated with serum ferritin concentrations. Conclusion: Our data suggested that serum ferritin concentrations are not related with smoking and lung function.

• Korean Journal of Community Nutrition
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• v.19 no.2
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• pp.122-132
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• 2014

Objectives: This study was conducted to investigate the vitamin D status and to determine the association between serum 25-hydroxyvitamin D [25(OH)D] concentrations and consumption frequencies of vitamin D rich foods in Korean adults and older adults. Methods: Subjects were 10,374 adults and 2,792 older adults participating in the 2008-2009 Korea National Health and Nutrition Examination Survey (KNHANES). Consumption frequencies of vitamin D rich foods were estimated by using a qualitative food frequency questionnaire (FFQ). Eleven food items such as beef, egg, mackerel, tuna, yellow corvina, pollack, anchovy, mushroom, milk, yogurt, and ice cream were selected as vitamin D rich foods based on previous research. Results: The proportions of deficiency (< 12 ng/mL), inadequacy (12-20 ng/mL) and sufficiency (${\geq}20ng/mL$) of serum 25(OH)D concentrations from June to November and December to May in adults were 8.8%, 42.3%, 48.8%, and 28.2%, 52.8%, 19.1%, respectively. The proportions of deficiency, inadequacy and sufficiency of serum 25(OH)D concentrations from June to November and December to May in older adults were 10.1%, 32.4%, 57.5%, and 24.1%, 45.4%, 30.5%, respectively. The mean serum 25(OH)D concentrations in adults were positively related to the consumption frequencies of mackerel, anchovy, all fish, milk and milk dairy products. The mean serum 25(OH)D concentrations in older adults were positively related to the consumption frequencies of yellow corvina and negatively related to the consumption frequencies of ice cream. Conclusions: Our results suggest that Korean adults were more deficient in serum 25(OH)D concentrations than older adults. The consumption of vitamin D rich foods may affect vitamin D status in Korean adults. Further studies are required to confirm these findings.

• Journal of Korean Medicine Rehabilitation
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• v.20 no.4
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• pp.33-49
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• 2010

Objectives : This study was designed to elucidate the anti-pathogenetic and curative effects of Gyehyeoldeungbokhap-bang(Jixietengfuge-fang, GCP) on Type II collagen-induced arthritis(CIA) in mice. Methods : In experiment, twenty four mices were divided into non-treated normal group(n=6), bovine type II collagen-induced control group(n=6), collagen immunized and treated two group medicated with extract of GCP(concentration of extraction: 200 mg/kg n=6, 400 mg/kg n=6) for 4 weeks after collagen immunization, Various experimental such as arthritis, incidence, index, total cell number of spleen, total cell number of peripheral lymph node(PLN), paw joint total cell number, analysis on the percentage of immunofluorescent cells of spleen in CIA induced mice, effects of inflammatory gene expression in spleen, PLN and paw joint of CIA mice, production of cytokine(IFN-${\gamma}$, IL-4, TNF-${\alpha}$, IL-6), analysis of rheumatoid factor(anti-collagen lgG, lgM level in serum) and histopathological study on the paw joint. The arthritis index, incidence were measured a week over 4 weeks after second boosting. Total cell number of spleen, peripheral lymph node, paw joint were measure after performed experiment over 7 weeks. Concentration of cytokine and rheumatoid factor in serum were measured after experiment finished. Histopathological study on the paw joint was measured after 40 days medicated with extract of GCP. Results : 1. Incidence of arthritis and index of arthritis were significantly decreased in treated group with 400 mg/kg. 2. Total cell number of spleen, PLN and paw joint were significantly decreased in treated group. 3. Analysis on the percentage of immunofluorescent cells of spleen in CIA induced mice were significantly controled compare with control group. 4. Effects of inflammatory gene expression in spleen, PLN and paw joint of CIA induced mice were significantly controled compare with control group. 5. IFN-${\gamma}$, IL-6, TNF-${\alpha}$, concentration($pg/m{\ell}$) in serum of treated group was significantly decreased compare with control group. But IL-4 was significantly increased. 6. lgM and lgG concentration($pg/m{\ell}$) in serum of treated group was significantly decreased compare with control group. 7. Histopathologically, suppurative and destructive lesion of synovial membrane, articular cartilage and subchondral bony tissue in treated group were alleviated compare with those of control group. Conclusions : Based on the results described above, it might be consider that Gyehyeoldeungbokhap-bang(Jixietengfuge-fang, GCP) has antiarthritic and analgesic effects and also inhibitory effects on the progression of collagen-induced arthritis mice.

• Journal of the Korean Chemical Society
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• v.63 no.6
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• pp.420-426
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• 2019

Selenoproteins,in Korean blood serum, GPx, SelP, and SeAlb were separated and determined with the use of HPLC-ICP/MS. Deuterium was used as a collision gas and affinity column with ammonium formate was used as an eluting solvent for the accurate quantitation of selenoproteins in human blood serum. Certified reference material BCR 639 (133±12 ng g^-1) was tested for the accuracy and the result was satisfactory 130±6 ng g^-1. Blood serum for the rectal cancer and controlled groups were collected and analyzed to give 84±27 ng g^-1, and 119±28 ng g^-1, respectively. The difference was statistically obvious when t-test was performed (t_cal 4.93 > t_95% 2.04). The decrease for cancer group was more obvious for female and aged group. The distributions of three selenoproteins were similar with each other, which means rectal cancer group did not show any specificity for any selenoproteins. As cancer developed, GPx showed a slight decrease but not obvious while the total concentration was increasing particularly at the second stage of cancer.

• Journal of Microbiology and Biotechnology
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• v.34 no.6
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• pp.1328-1339
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• 2024

Cadmium (Cd) is a prevalent environmental contaminant that poses a potential hazard to the health of both humans and animals. In this study, biosynthesized selenium-enriched Lactobacillus plantarum and selenium nanoparticles (SeNPs) were developed and evaluated for their protective effects against Cd-induced hepatic injury in mice through oral administration for 4 weeks. Cadmium exposure resulted in severe impairment of liver function, as evidenced by increased levels of serum markers of liver injury and, oxidative stress and significant damage to liver tissue, and a notable decrease in the diversity of the intestinal microbiota. Oral administration of Se-enriched L. plantarum (LS) reduced cadmium accumulation in the liver by 49.5% and, restored other cadmium-induced damage markers to normal levels. A comparison of the effects with those of L. plantarum (L) and SeNPs isolated from LS revealed that LS could more effectively alleviate hepatic oxidative stress and reduce the intrahepatic inflammatory responses of the liver, further protecting against cadmium-induced liver injury. These findings suggest that the development of LS may be effective at protecting the liver and intestinal tract from cadmium-induced damage.

• Journal of Microbiology and Biotechnology
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• v.10 no.3
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• pp.367-374
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• 2000

The composition of dissolved gases and nutrients in a liquid medium were determined for establishment of the optimum conditions for in vitro culture of Helicobacter pylori. A microaerobic condition facored by the organism was prepared by adjusting the partial pressure of the gas, agitation speed, and viscosity of the medium. The gaseous concentrations were controlled by utilizing CampyPak Plus that reduced oxygen while augmenting carbon dioxide. Agitation of the broth facilitated the oxygen transfer to the cells, yet inhibited the growth at high rates. An increase of viscosity in the medium repressed the culture although this variable was relatively insignificant. The chemical constituents of the liquid broth were examined to establish an economic model for H. pylori cultivation. The microbe required a neutral pH for optimum growth, and yet was also able to proliferate in an acidic condition, presumably by releasing the acidity-modulating enzyme, urease. Cyclodextrin and casamino acid were investigated as growth enhancers in place of serum, while yeast extract unexpectedly inhibited the cells. A low concentration of glucose, the unique carbon source for the organism, increased the cell density, yet high concentrations resulted in an adverse effect. Under optimally dissolved gas conditions, the cell concentration in brucella broth supplemented with serum substitutes and glucose reached $1.6{\times}10^8$ viable cells/ml which was approximately 50% higher than that obtained in the liquid medium added with only cyclodextrin or serum.