• Journal of Korea Association of Health Promotion
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• v.3 no.2
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• pp.199-218
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• 2005

이 연구는 우리나라 20세 이상 성인에서의 대사증후군 유병률을 파악하고 보건의식행태와 대사증후군간의 상관관계를 분석함으로써 대사증후군의 예방 및 치료를 위한 보건교육·건강증진 프로그램의 기초자료로 활용코자 시행되었다. 연구재료로 1998년 국민건강영양조사에 참여한 20세 이상 성인 24,469명 중 건강검진조사를 받았고 건강면접조사, 보건의식행태조사, 식생활조사에 응답한 7,854명의 조사결과를 활용하였으며, 2001년 미국에서 발포된 제 3차 콜레스테롤 관리지침(NCEP-ATP3)에서 제시된 대사증후군 진단기준 및 WH0 아시아/태평양지역 허리둘레를 기준으로 대사증후군 유병률을 분석하였다. 결과는 다음과 같다. 우리나라 20세이상 성인의 대사증후군 유병률은, NCEP-ATP3 기준에서 13.3%(남자 10.1%, 여자 16.0%), 아시아/태평양지역기준에서 19.8%(남자 16.7%, 여자 22.4%)로 아시아/태평양지역 기준에서, 남자보다는 여자에서 더 높았다. 대사증후군 진단항목 중복부비만, 저 HDL-콜레스테롤의 유병를은 여자에서, 고중성지방혈증, 공복시고혈당 유병률은 남자에서 더 높았고, 연령이 증가할수록 대사증후군의 유병률이 증가하였다. 또 대사증후근 진단할목의 보유경향은 ATP3진단기준에서 남자는 복부비만을 제외한 4개항목을 70%이상에서, 특히 고중성지방혈증은 95.0%에서 보유하였다 여자는 저HDL-콜레스테롤과 고중성지방혈증을 70%이상에서 보유하였다. 아시아/태평양 진단기준에서는 남자의 경우 고중성지방혈증을 88.0%에서, 여자의 경우 복부비만 및 저 HDL-콜레스테롤을 80%이상에서 보유하고 있었다. 대사증후군과 보건의식행태 간의 상관관계를 분석한 결과, 교육수준이 낮을수록, 결혼하지 않은 사람에 비해 결혼한 사람에서대사증후군 위험이 증가하였으며, BMI가 증가할수록 대사증후군 위험이 급격히 증가하였고, 고혈압·뇌졸중, 당뇨병 가족력이 있는 남자에서 대사증후군 위험이 증가하였다. 또 스스로 건강하지 않다고 생각하는 사람일수록 현재 흡연자의 PACK- YEAR가높을수록, 자주 술을 마실수록, )회 음주량이 많을수록, 과음빈도가 많을수록 대사증후근 위험이 증가하였으며, 알코올 의존 경향이 있는 경우에서도 유의한 결과를 보였다. 최근 1년간 체중이 감소 혹은 증가된 경우에서 유의한 결과를 보였으며, 체증감소정도가 클수록 대사증후군 위험이 증가하였다. 이상의 결과를 종합해 볼 때, 우리나라 성인의 대사증후군 유병률은 비교적 높으며 대사증후근의 발생에는 보건의식행태, 특히 음주 흡연비만 연령 교육수준 등이 밀접하게 관여한다고 할 수 있다. 그러나 앞으로 대사증후군의 예방을 위한 건강증진 프로그램의 기획 및 치료방침 수립을 위해서는 우리 나라대사증후군의 유병에 영향을 미치는 진단기준항목 및 관련요인의 상호 연관성, 우리나라에 적합한 진단기준 설정 등에 대한 지속적이고 깊이 있는 연구가 이루어져야 할 것이다.

• Korean Journal of Food Science and Technology
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• v.34 no.4
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• pp.678-683
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• 2002

Cholesterol-lowering effects of ${\beta}-glucan-enriched$ barley fraction were investigated in rats fed 0.5% cholesterol and barley as a fiber source. Male rats of Sprague-Dawley strain were divided into six groups and fed different diets for 5 weeks: normal (cholesterol-free), control (cellulose 5%), fiber-free, and three groups containing ${\beta}-glucan-enriched$ barley fractions. Although plasma cholesterol and triglyceride levels were not significantly different among different diet groups, ${\beta}-glucan-enriched$ barley fraction-fed groups had higher HDL-cholesterol concentrations than the cellulose control group after 5 weeks of experiment. The fecal excretion of cholesterol and triglyceride was significantly increased by barley diets. Fecal concentrations of cholesterol and triglyceride in cellulose control group were 38.2 and 2.6 g/day, respectively, whereas those of barley-fed groups were $52.4{\sim}59.2$ and $6.8{\sim}9.5$ g/day, respectively, during the experimental period.

• Journal of Applied Biological Chemistry
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• v.64 no.3
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• pp.291-298
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• 2021

In this study, we investigated whether the combined administration of berberine (BBR) and silibinin (SBN) was effective in improving hyperlipidemia and anti-obesity efficacy using a high-fat diet (HFD)-fed obese mouse model. HFD-induced obese mice were supplemented with the BBR and SBN combination (BBR-SBN) along with the HFD administration for 8 weeks. During the experiment, body weight, food intake, and levels of total cholesterol, triglyceride and high-density lipoprotein (HDL)-cholesterol were analyzed. Consumption of HFD in the mice caused rapid increases in body weight and the levels of total cholesterol and triglycerides compared to the normal control (NC) group. However, supplementation of BBR-SBN in these obese mice significantly reduced body weight gain and suppressed the levels of total cholesterol and triglyceride with the increment of HDL cholesterol level. In the HFD-fed group, abdominal fat weight was significantly increased and the adipocytes within the epididymal adipose tissue were found to have expanded sizes compared to the NC group. However, in the BBR-SBN group, the sizes of the adipocytes were comparable to those of the NC group and abdominal fat weight was significantly reduced. Moreover, the deposition of giant vesicular fat cells in liver tissues seen in the HFD-fed group was considerably reduced in the BBR-SBN group. These results suggest that the BBR-SBN combination tends to have synergic potential as an anti-obesity agent by significantly reducing body weight gain as well as lowering serum lipid levels and thus improving anti-obesity efficacy in HFD-induced obese mice.

• Korean Journal of Plant Resources
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• v.35 no.2
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• pp.372-379
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• 2022

This study investigated the effect of lemon balm (Melissa officinalis) extract on improving blood triglycerides according to the extraction solvent using 3T3-L1 cells. Lemon balm was extracted with water (MOW100), 70% ethanol (MOE70), 50% ethanol (MOE50), and 30% ethanol (MOE30). To verify its efficacy on improving blood triglycerides, cell viability, lipid accumulation, triglyceride (TG) content, and expressions of protein kinase A (PKA), adipose triglyceride lipase (ATGL), hormone-sensitive lipase (HSL), perilipin, and CGI-58 proteins were evaluated. Cytotoxicity was not evident up to an extract concentration of 1 mg/mL. Lipid accumulation and TG content were decreased in a concentration-dependent manner compared to their levels in the control group. When the MOW100 extract was applied at a concentration of 0.2 mg/mL, an inhibitory effect was evident, with lipid accumulation inhibited by 21.3% and TG content reduced by 32.7%. PKA phosphorylation and ATGL HSL and CGI-58 levels were increased. The data indicate that lemon balm extract obtained using water is more efficacious than extracted with ethanol. The aqueous extract shows potential in triglyceride control through lipolysis and lowering triglyceride levels.

• Journal of the Korean Society of Food Science and Nutrition
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• v.31 no.2
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• pp.271-276
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• 2002

We have investigated the intestinal functions and hypolipidemic effects of resistant starch (RS) in rats. Experimental groups were CON (cooked starch 45% + RS 7%), RSIO (cooked starch 35% +RS 10%), RS20 (cooked starch 25%+RS20%), and RS30 (cooked starch 15%+RS 30%). The weight gains during experimental period were slightly decreased by intake of resistant starch and the weights of epididymal fat pad were lower in resistant starch intake groups than in CON, although the difference was not significant. In intestinal functions, water contents of fecal, transit time and colon cell proliferation were affected by resistant starch. Plasma total lipid and triglyceride concentrations were significantly decreased, dose-dependently, by resistant starch intake. Conclusively, it is important to intake resistant starch in order to decrease plasma lipids and to improve intestinal functions.

• Applied Biological Chemistry
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• v.19 no.1
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• pp.51-56
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• 1976

Chemical changes of dissolved $SO_2$ were followed in vitro system. Varying concentrations of sulfite solution reached similar Eh values 20 hours after preparation. No further increase of Eh values occurred in acidic solutions. Eh values were more greatly increased in neutral solutions than in alkaline solutions, and slightly higher in light than in dark. The decrease of measurable $SO_2$ content tended to be greater with increasing concentrations of sulfite, on exposure to light, and at higher pH values. A larger amount of hydrogen atoms was produced with higher concentrations of $SO_2$ and in neutral to alkaline solutions than in acidic solutions.

• Nuclear Engineering and Technology
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• v.22 no.4
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• pp.410-415
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• 1990

Prompt fission neutron energy spectrum as a function of energies of neutron inducing fission has been calculated en the basis of the Madland-Nix(MN) model. The resultant spectra have been weighted to excitation functions of $^{27}$ Al(n, $\alpha$), $^{32}$ S(n, p) and $^{115}$ In(n, n') threshold reactions in order to get the average cross sections and then spectral indices which are defined as the average cross section ratio for two selective threshold reactions among the above three. It is appeared that spectral indices together with the neutron spectra are varying with energies of neutron inducing fission. This may indicate that the prompt fission neutron energy spectrum can be determined by measuring experimentally the spectral index.

• The Korean Journal of Zoology
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• v.37 no.2
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• pp.281-288
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• 1994

한국산 거머리(Erpobdella lineate)의 전, 후 흠반을 광학현미경과 투과전자현미경을 사용하여 조직화학적 및 미세구조적 연구를 수행한 결과 다음과 같았다. 거머리 전, 후 홍안에서 관찰된 상피세포는 불규칙한 단층원주형 상피로 되어 있으며, 상피세포의 상단에는 큐티를층이 있고 측면원형질 막은 거치상을 이루면서 여러개의 desmosome이 관찰되 었다. 큐티클층은 projection eplcuticularis, amorphorous stratum 및 fibrous stratum 등 3부분으로 구분되었다. 전, 후 출반의 상피조직 사이에서 공히 a형 분비과립과 b혐 분비과립 등이 관찰되었는데, 이 세포에서 분비된 과립들은 중성점액다당류로 확인되었다. 전 흠반의 횡단면 상피조직 밑에서 많은 근육세포들조 형성된 원형의 집단들이 다수 관찰되었는데, 이는 흠반의 흡수기능과 밀접한 관계가 있었다 비교적 통근형태의 근육세포들은 세포의 원형질막 내측에 많은 근섬유 다발을 지니고 있고 그 중앙에는 cristae가 발달된 많은 수의 사립체들이 모여 있었다. 전, 후 출반의 결합조직 내에서 5종류(A, B, C, D 및 I 등)의 분비과립들이 관찰되었다. 그 중 C, D 과립은 전, 후 흡반에서 공통으로 관찰되고, A, B 과립은 전 흠반에서, E 과립은 후 흠반에서만 각각 관찰되었는데, 이들 역시 모두 중성점액다당류로 확인되었다.

• Microbiology and Biotechnology Letters
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• v.19 no.3
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• pp.308-312
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• 1991

The delta-endotoxin from B. thuringiensis subsp. damstadienszs 73E10-2 was resistant to high concentration of salt (4M NaBr), organic solvents (50% acetone), denaturants (4 M urea), and neutral detergents (10% triton X-100). In contrast, the toxin was inactivated by treating with charged detergents as well as guanidine hydrochloride or carbon tetra-chloride. The delta-endotoxin is not a sulfhydryl activated toxin, but modification of the lysine side chains eliminated toxicity against mosquito larvae.

• Journal of Wetlands Research
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• v.20 no.4
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• pp.410-416
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• 2018

This experiment was carried out with the purpose of testing nickel and copper adsorption abilities of multi wall carbon nanotube (MWCNT) and activated carbon. In the acidic condition, only MWCNT was effective for removing nickel and copper ion in the aqueous phase while activated carbon rarely remove them. The MWCNT and heavy metals adsorption reaction followed pseudo-first order kinetic. When the initial pH value was neutral (pH=7), nickel was rapidly removed by MWCNT and activated carbon in 4 hr (99.02 %, 80.30 %). Also, copper ion was rapidly removed by both adsorbents in 4 hr when the initial pH was 7 (100 %, 99.73 %). Increasing of adsorbent dosages affect the pH evolution and heavy metal ions removal (0 ~ 99%). Also, oxidation pretreatment enhanced the adsorption efficiency of MWCNT.