• Title/Summary/Keyword: prevention activity

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Sulforaphane is Superior to Glucoraphanin in Modulating Carcinogen-Metabolising Enzymes in Hep G2 Cells

  • Abdull Razis, Ahmad Faizal;Noor, Noramaliza Mohd
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.7
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    • pp.4235-4238
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    • 2013
  • Glucoraphanin is the main glucosinolate found in broccoli and other cruciferous vegetables (Brassicaceae). The objective of the study was to evaluate whether glucoraphanin and its breakdown product sulforaphane, are potent modulators of various phase I and phase II enzymes involved in carcinogen-metabolising enzyme systems in vitro. The glucosinolate glucoraphanin was isolated from cruciferous vegetables and exposed to human hepatoma cell line HepG2 at various concentrations (0-25 ${\mu}M$) for 24 hours. Glucoraphanin at higher concentration (25 ${\mu}M$) decreased dealkylation of methoxyresorufin, a marker for cytochrome P4501 activity; supplementation of the incubation medium with myrosinase (0.018 U), the enzyme that converts glucosinolate to its corresponding isothiocyanate, showed minimal induction in this enzyme activity at concentration 10 ${\mu}M$. Quinone reductase and glutathione S-transferase activities were unaffected by this glucosinolate; however, supplementation of the incubation medium with myrosinase elevated quinone reductase activity. It may be inferred that the breakdown product of glucoraphanin, in this case sulforaphane, is superior than its precursor in modulating carcinogen-metabolising enzyme systems in vitro and this is likely to impact on the chemopreventive activity linked to cruciferous vegetable consumption.

Anti-Proliferative Activity and Apoptosis Induction of an Ethanolic Extract of Boesenbergia pandurata (Roxb.) Schlecht. against HeLa and Vero Cell Lines

  • Listyawati, Shanti;Sismindari, Sismindari;Mubarika, Sofia;Murti, Yosi Bayu;Ikawati, Muthi
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.1
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    • pp.183-187
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    • 2016
  • Rhizomes of Boesenbergia pandurata (Roxb.) Schlecht have been reported to contain active compounds with anticancer properties. This research was carried out to examine anti-proliferative and apoptotic induction against HeLa and Vero cells-line. Dried powder of B. pandurata rhizomes was extracted by a maceration method using 90% ethanol. Cytotoxic assays to determine $IC_{50}$ and anti-proliferative effects were carried out by MTT methods. Observation of apoptosis was achieved with double staining using acridine orange and ethidium bromide. The results showed that ethanolic extract of B. pandurata was more cytotoxic against HeLa cells ($IC_{50}$ of $60{\mu}g/mL$) than Vero cells ($IC_{50}$ of $125{\mu}g/mL$). The extract had higher anti-proliferative activity as well as apoptotic induction in HeLa than Vero cells. Therefore, it was concluded that the ethanolic extract of B. pandurata had anti-proliferative as well as apoptosis induction activity dependent on the cell type.

A Proposal of the Disaster Mitigation Activity Management System Model for Strengthening Disaster Prevention Activities (재난 예방활동 강화를 위한 재해경감활동관리체계 모델 제안)

  • Kim, Sang Duk;Kim, Chang Soo
    • Journal of the Society of Disaster Information
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    • v.15 no.4
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    • pp.502-513
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    • 2019
  • Purpose: This study intends to review the procedures for the establishment of the plan for disaster mitigation activities and the system for the management of disaster mitigation activities for the requirements of the enterprise disaster management standard. Method: The requirements, including the activities of each stage of disaster management defined within the scope of the corporate disaster management standard, were identified, the operational cases of 'A' institution were reviewed, and the targets of continuous planning were reviewed to meet the requirements. Result: It was reviewed that the contents and procedures of each phase of disaster management, which is a requirement of the enterprise disaster management standard, are clearly defined, and a task continuity plan is established for each stage of activity. Conclusion: Conclusion : The PDCA model including the activities of each stage of disaster management activities was presented for the requirements of the enterprise disaster management standard, and the disaster mitigation activity management system model of the broad concept of disaster management including prevention and preparedness plans for disasters was presented.

Immunostimulating Effect of a Well-known Thai Folkloric Remedy in Breast Cancer Patients

  • Thisoda, Piengpen;Ketsa-ard, Kanchana;Thongprasert, Sommai;Vongsakul, Molvibha;Picha, Pornthipa;Karbwang, Juntra;Na-Bangchang, Kesara
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.4
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    • pp.2599-2605
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    • 2013
  • The study aimed to evaluate immune-stimulating effects of a well-known Thai folkloric remedy when used for adjuvant therapy with conventional chemotherapeutics for treatment of breast cancer. Immunostimulating influence of the remedy (215 mg/kg body weight per day) on NK cell activity and TNF-${\alpha}$ release from the monocytes/macrophages were investigated in a total of 15 healthy women and 13 female patients with breast cancer (Group 1). The effect of breast tumor surgery on NK cell activity was further investigated in 18 female patients with breast cancer (Group 2). NK cell cytotoxic activity was determined by chromium release cytotoxic assay using K562, an erythroleukemic cell line. TNF-${\alpha}$ release from monocytes/macrophages separated from blood samples was determined through a biological assay using actinomycin D-treated L929 mouse fibroblast cells in the presence and absence of LPS. Baseline NK cell activity of the monocytes/macrophages separated from Group 2 patients expressed as %cytotoxicity was significantly lower than in the healthy subjects at E:T ratios of 100:1 and 25:1. In healthy subjects, there was no change in NK cell cytotoxic activity (%cytotoxicity or LU) following 1 and 2 weeks of treatment with the remedy compared with the baseline at various E:T ratios but the binding activity (%binding) was significantly increased after 2 weeks of treatment. The addition of one or two conventional chemotherapeutic regimens did not significantly reduce the NK cytotoxic activity but did affect release of TNF-${\alpha}$ in both unstimulated and LPS-stimulated samples. Surgery produced a significant suppressive effect on NK cell activity. The use of the remedy as an adjunct therapy may improve therapeutic efficacy and safety profiles of conventional chemotherapeutic regimens through stimulation of the immune system in cancer patients.

A Study on the influence of firm's Information Security Activities on the Information Security Compliance Intention of Employees (기업의 정보보안 활동이 구성원의 정보보안 준수의도에 미치는 영향 연구)

  • Jung, Jaewon;Lee, Jung-hoon;Kim, Chae-ri
    • Convergence Security Journal
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    • v.16 no.7
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    • pp.51-59
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    • 2016
  • An internal and external threat against an information system has increased, and to reduce it, organization has spent a great deal of money and manpower. However, in spite of such investment, security threat and trouble have happened continuously. Organization has conducted information security activity through various policies. The study classified such activities into prevention-oriented activity and control-oriented activity, and researched how information security activity of organization affects members of an organization and obeys information security policy by using health belief model. As a result of the study, prevention-oriented activity has a meaningful impact on seriousness, and this seriousness affects compliance intention for information security. Control-oriented activity has a meaningful impact on benefits, and the benefits have an effect on compliance intention. When an organization conducts prior activities such as education, PR, and monitoring, this organization should emphasize negative results that can happened because of deviation. In addition, in case of exposure and punishment through post activities such as inspection and punishment, if the organization emphasizes the positive effects of exposure and punishment rather than emphasis of negative parts, information security activity will be more effective.

Inhibitory effects of resveratrol analogs on lipopolysaccharide-induced cyclooxygenase-2 activity in RAW264.7 cells

  • Park, Eun-Jung;Min, Hye-Young;Park, Jae-Eun;Kim, Sang-Hee;Lee, Sang-Kook
    • Proceedings of the PSK Conference
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    • 2002.10a
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    • pp.245.1-245.1
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    • 2002
  • It has been known that resveratrol, a phytoalexin present in grapes mainly, has antioxidant. anti-inflammatory, and cancer chemopreventive activity. One mechanism of its anti-inflammation and cancer prevention is considered to modulate cyclooxygense-2 (COX-2) activity. Since COX-2 plays an important role in inflammation and carcinogenesis, the potential COX-2 inhibitors have been considered as anti-inflammatory or cancer chemopreventive agents. (omitted)

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Knowledge and Prevention Activity of Osteoporosis among Care Providers in Nursing Home (노인요양시설 간호제공자의 골다공증 관련 지식과 골다공증 예방활동)

  • Shim, Haeun;Park, Miwha;Park, Myungsook
    • Journal of Convergence for Information Technology
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    • v.9 no.12
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    • pp.71-80
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    • 2019
  • This study is a descriptive research study to identify osteoporosis knowledge and osteoporosis prevention activities among care providers in nursing home. The subjects were 142 care providers in S and Y city. The Data were collected from July 1 to July 20, 2019, and analyzed SPSS 24.0 Version. The result showed that the osteoporosis knowledge of among care providers was moderate. It showed differences in educational status, osteoporosis management training experience, residents number and importance awareness of elderly bone health. And prevention activities differed according to osteoporosis management training experience and importance awareness of elderly bone health. There was a positive correlation between knowledge and prevention activities of osteoporosis. Therefore, it is necessary to develop education programs for the management of elderly osteoporosis and to raise importance awareness of elderly bone health among care providers in nursing home. Further studies are needed to evaluate the effects of the program.

Preliminary study on Typhoon Information Contents Development for Pre-disaster Prevention Activities (사전방재활동을 위한 태풍정보 콘텐츠 개발에 관한 기초 연구)

  • Kim, Eun-Byul;Park, Jong-Kil;Jung, Woo-Sik
    • Journal of Environmental Science International
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    • v.27 no.11
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    • pp.957-966
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    • 2018
  • This study intend to induce citizen's voluntary preliminary disaster prevention activity to reduce damage of typhoon that occurs every year. For this purpose, a survey was conducted to develop Typhoon information contents. The number of samples used in the survey was set to 500 people, and citizens living in Jeju, Busan, and Jeonlanam-do were surveyed for areas with high typhoon disasters in order to develop practical and efficient information. The survey consisted of perception about natural disaster, how to get and use weather information, satisfaction with typhoon information and requirements. The general public perceived the typhoon as the first natural disaster. As a result of responding to the method of obtaining and utilizing weather information, the frequency of collecting weather information at the time of issuance of typhoon special report is higher than usual. The purpose of using weather information is clear and the response rate is high for the purpose of disaster prevention. The medium mainly collecting weather information is Internet portal site and mobile phone besides television. The current satisfaction with typhoon weather information is 34.8%, in addition to the accuracy of prediction, it is necessary to improve the information (that is content) provided. Specific responses to the content were investigated not only for single meteorological factors, but also for possible damage and potential countermeasures in the event of a disaster such as a typhoon. As can be seen from the above results, people are requested to provide information that can be used to detect and cope with disasters. The development of new content using easy accessible media will contribute to the reduction of damages caused by the typhoon that will occur in the future, and also to the disaster prevention activity.

Leisure Time Physical Activity in Saudi Arabia: Prevalence, Pattern and Determining Factors

  • Amin, Tarek Tawfik;Al Khoudair, Ali Salah;Al Harbi, Mohammad Abdulwahab;Al Ali, Ahmed Radi
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.1
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    • pp.351-360
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    • 2012
  • Background: Identification of reliable predictors of leisure time physical activity (LTPA) will enable healthcare providers to intervene and change the patterns of LTPA in the population to improve community health. Objectives: The objectives of this study were to determine prevalence and pattern of LTPA among adult Saudis aged 18-65 years, and to define the socio-demographic determinants that correlate with LTPA in Al-Hassa, Saudi Arabia. Subjects and Methods: A cross-sectional study of 2176 adult Saudis attending urban and rural primary health care centers were selected using a multistage proportionate sampling method. Participants were personally interviewed to gather information regarding socio-demographics, physical activity pattern using the Global Physical Activity Questionnaire (GPAQ). Physical activity (PA) in each domain was expressed in metabolic equivalents (METs). Results: The median total METs minutes/week for LTPA for both genders was 256, higher for men (636 METs minutes/week) compared to women (249METs minutes/week). Overall, only 19.8% of the total PA was derived from LTPA. Of the sampled population 50.0% reported doing no leisure activity. Using the cut off of 600 METs-minutes/day or 150 minutes of moderate intensity over 5 or more days/week, only 21.0% of the included sample were considered as being sufficiently active and 10.4% were in the high active category with beneficial health effects. Multivariate regression analysis showed that male, younger age (<35 years), absence of chronic disease conditions and moderate level of total PA were significant predictors for being active in the LTPA domain. Conclusion: The prevalence and intensity of LTPA among the included sample demonstrated low levels. Nearly 80% of the included sample population did not achieve the recommended LTPA level with beneficial health effects. Female gender, urban residence and associated chronic diseases correlated with a low LTPA.

Lifetime Physical Activity and Breast Cancer: a Case-Control Study in Kelantan, Malaysia

  • Yen, Siew Hwa;Knight, A;Krishna, MBV;Muda, WMW;Rufai, AA
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.8
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    • pp.4083-4088
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    • 2016
  • Background: Physical inactivity has been identified as the fourth leading risk factor for global mortality and is associated with increased breast cancer diagnosis and recurrence. Purpose: To examine the association between adult lifetime physical activity and breast cancer risk in a case-control analysis. Materials and Methods: This study involved 122 cases of breast cancer and 121 controls in the state of Kelantan in Malaysia. A comprehensive measure of lifetime physical activity was used to assess occupational, household, and recreational/sports activity. For every type of activity, a metabolic equivalent (MET) score was assigned using the compendium of physical activities. MET-hours/week per year for all types of activities at different levels of intensities for different age groups were calculated. Logistic regression analysis was used to estimate odds ratios between various measures of physical activity and breast cancer risk. Conclusions: The mean MET-hours/week per year for all activities were 120.0 and 132.9 of MET-hours/week per year for cases and controls respectively. Household activities accounted for about 70% of the total lifetime physical activities. Only about 2.5% of the total lifetime physical activities were in the form of recreational/sports. This study found no association between lifetime occupational and recreational/sports physical activities with breast cancer risk among Kelantanese women. However, higher intensity lifetime household activities seemed to significantly reduce risk of breast cancer.