• Title/Summary/Keyword: activity index

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Antimicrobial Activity of Natural Quercetin Alone and in Combination with Some Antibiotics (천연 퀘루세틴이 수종 항생물질의 항균력에 미치는 병용효과)

  • Eo, Seong-Kug;Kim, Young-So;Lee, Chong-Kil;Lee, Do-Ik;Kim, Il-Hyuk;Han, Seong-Sun
    • YAKHAK HOEJI
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    • v.40 no.6
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    • pp.653-658
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    • 1996
  • As part of our search for less toxic antimicrobial agents from natural resources. rutin was isolated from Sophora japonica and then hydrolyzed to quercetin. Antimicrobial activity of quercetin was tested in vitro against five kinds of gram positive and ten kinds of gram negative bacteria by serial broth dilution method. Among fifteen kinds of bacteria tested, the antimicrobial activity of quercetin was the most potent against Proteus vulgaris showing minimal inhibitory concentration(MIC) of 125 ${\mu}$g/ml. To investigate the effect of antimicrobial combinations of quercetin with four kinds of antibiotics (ampicillin, cefazolin, oxytetracycline and chloramphenicol). the fractional inhibitory concentration index (FICI) was determined by checkerboard assay for each strain. The antimicrobial combinations of quercetin with four kinds of antibiotics resulted in synergism in one instance, additive effect in four instances, but no antagonism was observed.

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Antiviral Activity of Some Flavonoids on Herpes Simplex Viruses (수종 Flavonoid의 항허피스바이러스효과)

  • Lee, Ji-Hyun;Kim, Young-So;Lee, Chong-Kil;Lee, Hyuk-Koo;Han, Seong-Sun
    • Korean Journal of Pharmacognosy
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    • v.30 no.1
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    • pp.34-39
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    • 1999
  • To search for less toxic antiherpetic agents, the inhibitory effects of twelve kinds of flavonoids including chrysin, quercetin, quercitrin, rutin, fisetin, gossypin, kaempferol, morin, naringenin, naringin, hesperetin and hesperidin on the plaque formation of herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2) in Vero cells were examined by plaque reduction assay in vitro. Some flavonoids tested in this study showed potent antiherpetic activity, reducing intracellular replication of herpes simplex viruses when Vero cell monolayers were infected and subsequently cultured in medium containing flavonoids. Naringenin showed the most potent antiviral activity against HSV-1 with selectivity index (SI) of 19.1 and hesperetin showed the most potent antiviral activity against HSV-2 with SI of 9.8. These results suggest that some flavonoids may be a potential therapeutic agent for the treatment and prevention of herpes simplex virus infections.

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Beneficial effects of body fat and obesity through the inhibition of the digestion of carbohydrate and lipid in gastrointestinal tract (장내의 탄수화물과 지방 흡수 억제를 통한 체지방 및 비만 개선 효과에 관한 연구)

  • 정은희;윤승원;이홍석;윤유식;유경미;황인경
    • Korean journal of food and cookery science
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    • v.19 no.1
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    • pp.107-113
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    • 2003
  • In a previous study, a dietary supplement was developed in our lab using natural herbal extracts against digest enzyme activity in GI tract for weight control. This natural herbal extracts could regulate absorption of glucose and lipid by the inhibition of digest enzyme activity. In this study, we screened the natural herbs that inhibit glucoamylase activity and developed an water extract of cinnamon. The cinnamon extract delayed and decreased the increment of carbohydrate degradation through the inhibition of glucoamylase activity in vitro. Fifty volunteers were subjected to the intake of the herbal extracts by taking twice a day for 60 days. As a result, the treated subjects lost 3 kg of body weight and 3.5 kg of body fat mass after the treatment. Furthermore, the body mass index and waist size were significantly decreased during the experimental period. Above results suggested that the administration of the dietary additives composed of cinnamon and natural herbal extract improves the obesity by the decrement of body weight and body fat mass.

LONG-TERM EFFECTS OF SYRUP MEDICATION FOR ASTHMA ON THE SALIVARY INVERTASE ACTIVITY AND DECIDUOUS CARIES (천식치료를 위한 시럽제의 장기복용이 타액내 환원효소활성과 유치우식에 끼친 영향)

  • Lee, Kyung-Ok;Lee, Kwang-Hee;Kim, Dae-Eop
    • Journal of the korean academy of Pediatric Dentistry
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    • v.25 no.2
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    • pp.421-429
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    • 1998
  • The purpose of this study was to investigate the effects of syrup medication for asthmatic children on the salivary invertase activity and caries experience. 26 ashmatic children for the study group and 30 healthy children for the control group were selected, respectively. Caries experience was examined and salivary reductase activity was tested. The parents of asthmatic children were asked to fill in the questionaire about syrup intake period and home dental behavior, and the parents of healthy children were asked to fill in the same questionaire without syrup intake period. The results were as follows : 1. The ds index of asthmatic children were higher than that of healthy children(P < 0.05). 2. There was significant difference in dt index between the intake period of 'shorter than 10 months' and 'longer than 20 months'. The ds, dft and dfs indices had a tendency to increase as the intake period increased. 3. The salivary reductase activity had a tendency to increase as the intake period of syrup increased.

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The Effect of Stabilization Exercise using Tele-rehabilitaion on Muscle Activity, Shoulder Pain and Disability Index in Rural Elderly People with Chronic Shoulder Pain

  • Kim, Jaewoon
    • Physical Therapy Rehabilitation Science
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    • v.10 no.2
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    • pp.106-111
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    • 2021
  • Objective: This study covered the effect of stabilization exercise on muscle activity, shoulder painanddisability index(SPADI) oftheelderly people with chronic shoulder pain by tele-rehabilitation village hall in rural area. Design: A randomized controlled trial. Methods: The study subjects are 29 elders with chronic shoulder pain aged over 65-year-old who reside in the rural area (experimental group: 14 elders and control group: 15). The elderly people in the experimental group were asked to perform shoulder stabilization exercise 60 minutes per one time for 4 weeks and three times in a week and the others in the control group were asked to receive education related to pain management for the initial one time. Before and after the experiment, we measured the subjects' muscle activity of upper trapezius, serratus anterior and the lower trapezius. In addition, SPADI is measured through the questionnaire. Results: Compared to the control group, the experimental group showed significant differences in the muscle activity of the three muscles (upper trapezius, serratus anterior, lower trapezius), and SPADI. Conclusions: It is found that shoulder stabilization exercise is effective in muscleactivity, pain and ability of the elderly people through tele-rehabilitation service. This study should be used for improving the quality of the elderly people's lives through active tele-rehabilitation service for areas where have poor medical benefits.

Protective Effect of Atractylodes macrocephala and Taraxacum spp. Combination Treatment in Balb/c Mice with Dextran Sulfate Sodium-Induced Ulcerative Colitis

  • Lee, Donghun;Kim, Hocheol
    • The Korea Journal of Herbology
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    • v.32 no.3
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    • pp.79-87
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    • 2017
  • Objectives : This study aimed to investigate the protective effects of an herbal mixture of Atractylodes macrocephala and Taraxacum spp. (ATC) on ulcerative colitis. We have previously screened traditional medicinal herbs to discover the effective candidate by the animal model. A. macrocephala and T. spp were identified as one of the effective herbs in the screening process. Methods : Experimental colitis was induced in male Balb/c mice by administering drinking water containing dextran sulfate sodium, which mimics the clinical and histological features of ulcerative colitis in human. ATC at doses of 30, 100 or 300 mg/kg were orally administered to mice twice per day for 10 consecutive days. To evaluate the damage from experimentla ulcerative colitis, body weight, colon length, disease activity index, myeloperoxidase and histological changes were measured and analyzed. Results : The administration of dextran sulfate sodium with drinking water resulted in markedly reduced colon length, severe body weight loss, increased levels of myeloperoxidase activity and histological damages in mice. ATC treatment significantly ameliorated the colon shortening, histological damage, body weight loss and disease activity index score in a dose-dependent manner. ATC also attenuated the colonic myeloperoxidase activity which reflects the severity and extent of inflammatory damage of colon. Conclusions : ATC exerts protective effects against inflammatory colonic structural damage induced by epithelial barrier integrity impairment. ATC also inhibits weight loss and related symptoms of UC which can be considered as the functional recovery of colon.

A Study of the Body Weight Control and Dietary Habits According to the Obese Index in Male Middle School Students (남자 중학생의 비만도에 따른 체중조절, 식습관 연구)

  • Son, Shin-Mi;Park, Eun-Sook
    • Korean Journal of Community Nutrition
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    • v.11 no.6
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    • pp.683-694
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    • 2006
  • The purpose of this study was to determine the body weight control, food habits and nutrient intakes according to the obese index in male middle school students. This study was carried out through questionnaires and measurement by body fat analyzer (Inbody 4.0). The subjects were 275 male middle school students in Iksan. Chonbuk province. The average age, height, weight, and BMI of the subjects were 14.4 years old, 167.8 cm, 60.2 kg and $21.3kg/m^2$, respectively. Seventeen point one percent of the subjects were the underweight group, 47.6% were the normalweight group, and 35.3% were the overweight group by the classification of the Korean Pediatrics Society standard. Body fat of underweight, normalweight, and overweight were 16.1%, 19.0%, and 26.6%, respectively. Thirty one point nine percent of underweight, 39.7% of normalweight. and 31.9% of overweight had misperceptions of their weight (p<0.001). Sixty two point two percent of the males were dissatisfied with their body weight, and 55.3% of the whole tried to reduce their body weights. Even though they were normalweight, half of them dissatisfied with their weight. The source of weight control method was friends and family, TV radio, Internet, and school nutrition education, in order. The subjects exercised 3.4 days per week, 70.2 minutes per day, but it was not different significantly by the obese index. Forty percent of the subjects had meals fast, 58.5% of them have biased food habits even if they didn't differ by the obese index. Activity rate was different by the obese index significantly (p < 0.05), the number of severe activity was most in underweight. In conclusion, nutrition education programs should contain the necessity of normalweight, and regularity of lift habits and activities for energy expenditure in overweight students. It made them to recognize their weight correctly, establish healthy body images, and raise the ability to promote health and improve nutritional status.

A Study on Trade Business Index Development (무역경기지수(TBI) 개발에 관한 연구)

  • Park, Joung-Moon;Oh, Hyun-Jin;Hong, Seung-Lin
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.50
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    • pp.309-331
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    • 2011
  • Today, the world is considered to indispensable basic data in specific gravity of international trade is increasing in economic activity of every country with globalization, and trade connection index number analyzes an economy or part of trade that contribute to economic growth of a country along with other foreign trade statistics and evaluates along with this. Also, it is becoming one of big subject for economic policy person in charge and related economists I do how measure movement of amount, price and amount of materials in trade. But, about till now interest lack about trade index and trade index creation theoretical, it is actuality that export, import connection index number or similar research is not attained much into domestic and overseas from study tribe which is gone ahead. Moreover, study that try to judge and forecast stream of market applying trade connection index number is hard to find on study until now. And, in this research, there is the objective to figure out stream of Korean market change through trade business index creation that base on Korea Customs Administration export and the importation data and this is differences with several study, and at the same time, it is value of this study.

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Optimization of Process Capability Index for Economic Coalify Assurance Level (경제적인 품질보증수준확보를 위한 공정능력지수의 최적화에 관한 연구)

  • 송서일
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.11 no.18
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    • pp.71-80
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    • 1988
  • Process capability implies the qualitative capability of a process, and it is necessary to specify the process capability by quantification and to evaluate the level with the specified standardizaion. But the process capability index is currently used to evaluate the performance of quality control activity. without considering the characteristics of process structure or the economy of management. Here the researcher would like to redefine process capability and emphasize its index may be used as the measure of managerial assessment and the objective of process quality control in full consideration of the economic aspects of process characteristics. Too little or too much process capability causes a loss of or excess. The proper economic level of process capability varies to each process. The procedure of taking the optimum process capability index is derived from the expected profit function, whereas each method is studied in cases of normal process with one-sided specification and two-sided specification. In addition, the process capability index is presented as a method of quality assurance. And an example is exhibited on wrapping process of 'A' company. The results of this study are summarized at follows. First, though the norminalization of the process capability index is possible by the existing methods, the optimum process capability index can vary to the situation of each process. So, the optimum process capability index which is suggested in this dissertation should be used as the standard to assess process capability. Second, the process capability index can take its effect not just in indicating quality control or managerial records but also in the management of high qualify assurance.

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Nutritional Status and Related Factors of the Elderly in Longevity Areas - III. Relation among Self-rated Health, Health-related Behaviors, and Nutrient Intake in Rural Elderly - (고령인구 비율이 높은 지역 장년, 노년층의 건강.영양상태 및 이에 영향을 미치는 인자에 관한 연구 - III. 농촌노인의 주관적 건강평가와 건강관련행동 및 식이섭취와의 관련성 -)

  • Choe Jeong-Sook;Kwon Sung-Ok;Paik Hee-Young
    • Journal of Nutrition and Health
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    • v.39 no.3
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    • pp.286-298
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    • 2006
  • The study aimed to identify major factors related to global self-rated health of the community-dwelling elderly people in rural areas. Interviews were conducted with 433 persons over 65 years of age. The socio-economic characteristics, chronic disease status, measures of functional and mental health, life satisfaction, health-related behaviors including smoking, drinking, exercise, social activity, dietary habit, and food intakes were analyzed to determine their influence on self-rated health index. Data on food intake were obtained through the 24-hour recall method. The self-rated health of rural elderly was poor or very poor as reported by 42.6% and 52.4% of the men and women, respectively. Poor self-rated health was found to be related to elderly aged $65{\sim}74$, female, absence of work, more chronic diseases, dependence on Instrumental Activity Daily Living (IADL), higher mental unhealthy days, lower current life satisfaction, less social activity, lower dietary habit scores, lower intake of total food, fruit, eggs, fishes & shell fishes, vitamin C (%RDA), and Nutrient Adequacy Ratio (NAR). The results of the multiple regression analysis showed that poor self-rated health index is significantly associated with more chronic diseases, mental unhealthy days, gastrointestinal disease, musculoskeletal disease, less social activity, and lower intake of fruits. The results also suggested that improving the nutritional status and functional ability, and reducing the burden of chronic diseases are beneficial to the self-rated health index of the elderly.