• Title/Summary/Keyword: control effect

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Effect of JiaoTeng-Yuan(교등원) on Oxidation Stress Caused by D-galactose in Sprague-Dawley Rats (교등원이 백서의 산화유발을 방어하는 작용에 관한 연구)

  • 이송실;이상재;김광호
    • The Journal of Korean Medicine
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    • v.25 no.2
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    • pp.194-206
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    • 2004
  • Objectives : JiaoTeng-Yuan(교등원) is said to be a prescription for preservation of health in $\ulcorner$HuaTuo.ZhongZangJing (화타.중장경)$\lrcorner$. It is known to have the effect of Bu-Shen (보신: strengthening kidney) and Yi-Shou (익수: prolonging the span of one's life). This study investigates whether JTY is effective on inhibition of oxidation stress. Methods : Sprague-Dawley rats (12-week-old, weight $300{\pm}20g$) were divided into 3 groups. The normal group (n=8) was injected with PBS (1ml/body, s.c) subcutaneously behind the neck. The control group (n=8) was injected with D-galactose (50mg/kg, 1ml PBS/body, s.c) to induce pathological animals. The JTY group was injected with the same treatment as the control group, and fed containing JTY (10%). All groups were treated 1 time per day for 6 weeks. After the rats were sacrificed anti-oxidant enzyme (SOD, CAT, G-px) activity, GSH quantity of RBC and tissue (heart, liver and kidney), and plasma Vit-C quantity were examined. Also, the MDA levels of liver and kidney, lipofuscin of heart and endurance of erythrocyte membrane were measured. Results : In the JTY group, RBC's SOD activity decline was halted by 21 % of the normal level, compared to the control group, G-px activity (unit/g of Hb) increased significantly, compared to the normal group, and the level of Vit-C in plasma increased by 16%. Heart's SOD activity was kept at the same level as that of the normal group; and CAT activity decline was halted by 26%. Kidney's CAT and G-px activities were kept at the same level as that shown in the normal group, implying the existence of a halting effect. Liver also showed a slight halting effect against the decline of anti-oxidant ability, but the effect was not significant (${\alpha}=0.05$). A comparison between the levels of peroxide in SD rats showed that the level of TBARS in plasma increased significantly in the control group and that it was normal in the JTY group. The livers in the JTY group, compared to those in the control group, showed 36% halting effect of the normal level while their kidney's indicated the level significantly lower than the normal level. Heart's lipofuscin increased significantly in the control group, but was alike in both the JTY and the normal groups. Endurance of erythrocyte membrane (%) decreased significantly in the control group while it was kept at the similar level in both the JTY and the normal groups, indicating the halting effect. Conclusions : This study suggests that JTY is effective to defend oxidation stress caused by D-galactose in the animals. It showed that the anti-oxidant ability was maintained and strengthened. On the other hand, it reduced the level of peroxide in animals. In sum, JTY appeared to have the equilibrium normal physiological function in SD rat.

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Experimental Studies on the Anti-tumor and the Immunomodulatory Effects of Jiaweicitaowan(加未慈桃丸) (가미자도환(加味慈桃丸)의 항암(抗癌) 및 면역증강효과(免疫增强效果)에 관한 부험적(實驗的) 연구(硏究))

  • Jeon, Young-Soo;Shim, Bum-Sang;Choi, Seung-Hoon;Ahn, Kyoo-Sook
    • THE JOURNAL OF KOREAN ORIENTAL ONCOLOGY
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    • v.8 no.1
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    • pp.103-125
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    • 2002
  • This experimental study was carried out to evaluate the anti-tumor and the immunomodulatory effects of Jiaweicitaowan(加未慈桃丸) against cancer. The in vitro anti-tumor effects were evaluated by MTT assay. The cytotoxicity, extension of survival days, the effect of inhibition solid tumor which was induced sarcoma 180, and the changes of body weight were evaluated for in vivo effects of anti-tumor. To evaluate the immunomodulatory effects of Jiawei- citaowan(加未慈桃丸), delayed type hypersensitivity, hemagglutinin, hemolysin titers for humoral immune response, rosette forming cells for cell-mediated immune response, natural killer cell activity, proliferation of lymphocyte, productivty of Interleukin-2, and carbon clearance were measured with methotrexate treated mice. The results were as follows; 1. In the case of existence ability of tumor cell, IC50 had an anti-tumor ativity resulted 2.52mg/ml to SNU-C4. 0.41mg/ml to SNU-396, resulted to 0.09mg/mlSNU-1. 2. The groups of Jiaweicitaowan(加未慈桃丸) 10mg/ml, 20mg/kg had no body weight loss. reduction in intake of water and feed, so these had no toxicity. 3. In the case of the effect of extention of existence. the group of 20mg/kg Jiaweicitaowan(加未慈桃丸) extract treated group was showed 250% in ILS. 4. The effect of inhibition solid tumor was significantly decreased in both 10mg/kg, 20mg/kg of Jiaweicitaowan(加未慈桃丸) extract treated groups as compared with control group S. The groups of 10mg/kg, 20mg/kg Jiaweicitaowan(加未慈桃丸) had significant effect of body weight change compared to control group. 6. Delayed type hypersensitivity was not significant in both Jiaweicitaowan(加未慈桃丸) extract treated groups as compared with control group. 7. Hemagglutinin and Hemolysin titers were significantly increased by dose-dependent. so these results showed that the humoral immume respose was activated. 8. For the effect of rosette formimg cells was not significant in hoth Jiaweicitaowan(加未慈桃丸) extract treated groups as compared with control group. 9. Natural killer cell activity was significantly increased in both Jiaweicitaowan(加未慈桃丸) extract treated groups as compared with control group in the ratio of 100: 1, 50: 1 of effector and target cells, but in the ratio of 10:1, the Jiaweicitaowan(加未慈桃丸) extract treated groups were not significant. 10. The proliferation of lymphocyte and productivty of Interleukin-2 were significantly increased by dose-dependent in both 10mg/ kg, 20mg/ kg of Jiaweicitaowan(加未慈桃丸) extract treated groups as compared with control group. 11. In the phagocytic effect, the 20mg/kg of Jiaweicitaowan(加未慈桃丸) extract treated group showed the increasing effect with significance as compared with control group. According to the results, we can suggest that Jiaweicitaowan(加未慈桃丸) has the antitumor and the immunomodulatory effects.

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Effects of Mother's Affectionate Parenting, Psychological·Behavioral Control on Young Children's Problem Behaviors: Mediating Effect of Self-control (어머니의 애정적 양육행동과 심리·행동 통제가 유아의 문제행동에 미치는 영향: 자기통제의 매개효과)

  • Sung, Hey won;Han, Sae Young
    • Korean Journal of Childcare and Education
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    • v.11 no.4
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    • pp.271-292
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    • 2015
  • The purpose of this study was to examine the mediating effect of young children's self-control in the relationship between mother's affectionate parenting psychological behavioral control and young children's problem behaviors. The subjects of this study were 368 mothers whose young children were 3 to 5years old and attending to 3 private kindergartens and 2 child-care centers located in Chunkbuk. Data were analyzed by frequency, percentage, Primary factor analysis, Cronbach's ${\alpha}$, t-test, F-test, Pearson's correlation, and hierarchical regression, using the SPSS 12.0 program. The results of this study were as follows: First, young children's self control partially mediated when mother's affectionate parenting affected young children's internalizing and externalizing problem behaviors. Second, young children's self control partially mediated when mother's psychological control affected young children's internalizing and externalizing problem behaviors. Third, young children's self control did not show a mediating effect on the relationship between mother's behavioral control and young children's internalizing and externalizing problem behaviors. In conclusion, young children's internalization of mother's psychological control and behavioral control as well as affectionate parenting have its effect on problem behaviors.

The effect of clinical nurse's personality on job stress and organizational effectiveness (임상간호사의 성격특성이 직무스트레스와 조직유효성에 미치는 영향)

  • Yoon, Sook-Hee
    • Journal of Korean Academy of Nursing Administration
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    • v.8 no.4
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    • pp.595-603
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    • 2002
  • Purpose : The purpose of this study was to identify the effect of clinical nurse's locus of control of personality on job stress and job satisfaction and organizational commitment out of organizational effectiveness. Methods : The subjects were 463 staff nurses, who were employed in four university hospitals located in Seoul, Pusan and Kyungki-do. Data was collected from October 4th to October 14th in 2000 by a self-report questionnaire. Data was analyzed by the SAS for the general characteristics of the subjects, descriptive statistics, test for reliability and correlations. The effect of variables were tested using the Lisrel 8.12(a) program. Results : With the findings from this study, the internal-external locus of control affects job stress directly. Also it affects job satisfaction directly and via job stress indirectly. But it affects organizational commitment only via job stress and job satisfaction indirectly. Direct effect of locus of control to organizational commitment is not significant. Job stress affects job satisfaction and organizational commitment out of organizational effectiveness directly. Finally, job satisfaction was direct predictor of organizational commitment. Conclusion : Therefore, nursing managers ought to develop social learning programs to change the perception of individual personality and job stress management programs in order to improve organizational effectiveness.

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Moderation and Mediation Effects of Self-efficacy and Perceived Behavioral Control on the Relationship between Knowledge of and Compliance with Handwashing in Nursing Students (간호대학생의 손씻기 지식과 수행의 관계에서 자기효능감과 지각된 행위통제의 조절 및 매개효과)

  • Park, Soonjoo
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.24 no.3
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    • pp.219-229
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    • 2017
  • Purpose: The aim of this study was to examine the relationship between handwashing knowledge and handwashing compliance in nursing students and to identify the moderation and mediation effects of self-efficacy and perceived behavioral control on the relationship. Methods: The participants were 172 nursing college students who completed the self-report measures. Data were analyzed using t-test, ANOVA, and Pearson correlation coefficient, Multiple regression analysis was used to test moderation and mediation effects. Results: The score for knowledge of handwashing was higher in participants who had completed fundamentals of nursing practicum (t=-6.54, p<.001) and the score for compliance with handwashing was higher in participants who had completed clinical practicum (t=-3.81, p<.001) or fundamentals of nursing practicum (t=-5.97, p<.001). Self-efficacy showed a significant moderation effect (z=2.21, p=.027) but not a mediation effect while perceived behavioral control had a significant mediation effect but not a moderation effect on the relationship between knowledge of handwashing and compliance. Conclusion: Findings indicate that clinical practicum and fundamentals of nursing practicum were helpful to nursing students in acquiring knowledge and in practicing proper handwashing technique. These findings suggest that continuing and repetitive education programs on handwashing need to be enhanced and strategies to strengthen self-efficacy and perceived behavioral control need to be included in education programs.

Inhibitory Effect of Bovine Milk on the Progression of Atherosclerosis in Rats (우유가 흰쥐의 동맥경화증 유발억제에 미치는 영향)

  • 노우섭;김종규;이용욱
    • Journal of Food Hygiene and Safety
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    • v.9 no.3
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    • pp.169-174
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    • 1994
  • This stydy was performed to investigate the inhibitory effect of bovine milk on the atherosclerotic rats. Eighty male rats of 5-weeks of age were divided into 4 groups, control, active treatment control fed the atherogenic feed, and skim milk and whole milk groups fed powdered skim or whole milk mixed with the atherogenic feed and observed for 13 weeks. Growth, clinical and pathological changes of the rats were examined. Rats of the 4 groups did not show significant difference of feed intake and weight gain. The level of serum cholesterol, high density lipoprotein cholesterol (HDL-cholesterol) fraction, and inorganics between skim milk and whole milk groups were not significantly different though significant difference was shown between active treatment control and milk groups. Milder calcification and nearosis in aorta, heart and kidney and fat degeneration in liver were seen in the milk groups than were in active treatment control. Marked difference, however, was not found between the skim milk and whole milk groups. Both powdered skim and whole milks could have a helpful effect of vitamin D2-and -cholesterol-induced atherosclerosis in rats.

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The Study of KCG Extract Under the Anti-Stress Effect of Rats (가미천마구등음의 항스트레스 효과에 대한 실험적 연구)

  • Park Jung Jun;Kim Dong Hee;Lee Yang Gu;Kim Yoon Sik;Seol In Chan
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.16 no.2
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    • pp.220-225
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    • 2002
  • To determine the anti-stress effect of KCG(加味天麻鉤藤飮) extract on sprague-dawley rats. we conducted a research about the change of weight, activity, reactivity, c-fos protein, cytotoxicity against PC12 cell line and heal shock protein. 1) KCG extract siginificantly inhibited the decrease of body weight induced by stress, compared with the control group. 2) KCG extract had no siginificant effect in the activity and reactivity of rats between the control and the experimental groups. 3) KCG extract siginificantly restrained c-fos protein manifestation, compared with the control group. 4) KCG extract siginificantly restrained heat shock protein, compared with the control group. These results suggested that KCG might be usefully anti-stress effect.

A Study on the Effect of Publicity and Entrepreneurship by Government Control, Competitive Environment, and Shareholding in Korea Electric Power Corporation (한국 전력산업의 정부통제, 경쟁환경, 소유구조가 공공성 및 기업성 향상에 미치는 영향에 관한 실증적 연구)

  • Kim, Myung-Soo
    • Proceedings of the KIEE Conference
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    • 2006.07a
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    • pp.337-338
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    • 2006
  • The purpose of this study is to find out main factors affecting public enterprise's environment, which improves the performance of public enterprise. In detail, under the premises of keeping publicity in Korea Electricity Industry, the main target of this study is to seek after factors enhancing entrepreneurship and deals with publicity which is related with entrepreneurship. Questionnaires are distributed to the employee of public enterprise, public servants, and civil corps. A total of 553 copies are collected. The main contents of questionnaires are related with the effect of publicity and entrepreneurship by government control, competitive environment, and shareholding structure in Korea Electricity Power Corporation(KEPCO). The results of this survey are as follows : First, government control is negatively related to the entrepreneurship while it is positively related to the publicity. Second, this survey shows that competitive environment has a positive influence on promoting both publicity and entrepreneurship. Third, this survey in connection with shareholding structure indicates that present structure in KEPCO has a positive effect on publicity but negative effect on entrepreneurship. According to this empirical results, it is verified that the main issues on the performance of KEPCO are related with the level of government control and competitive environment in its industry.

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Antitumor Activities of Polysaccharudes fractuibuzed from Zoogloea sp. Against Meth A Cells (Zoogloea sp.의 다당체가 Meth A 세포에 의한 종양형성 억제 효과)

  • 장명웅;김광혁;공재열
    • Journal of Life Science
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    • v.5 no.2
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    • pp.81-89
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    • 1995
  • The antitumor activities of the cell bound polysaccharide(CBP), water soluble polysaccharide(WSP) and sulfated polysaccharide(SP) of Zoogloea sp. were observe. The results obtained were as follows : 1) The CBP, WSP, and SP showed cytotoxic effect on the Meth A cells in vitro, however, the effect of CBP and WSP was more ten-fold greater than that pf SP. 2) When CBP, WSP, and SP was inoculated into the peritoneal cavity of the Meth A cells transplanted mice, the average survival days tended to prolonged slightly as compared with the control. 3) When Meth A cells were transplanted subcutaneously into the back side of mice, and then CBP, WSP, and Sp was inoculated into the peritoneal cavity of mice, the tumor growth inhibition ratio was 46.9% for WSP, 40.4% for CBP, and 16.2% for SP. 4) The phagocytic activity of peritoneal macrophages elicited with CBP, WSP, and SP was significantly increased than that of control. 5) The production of nitric oxide in the peritoneal macrophages stimulated with CBP, WSP, SP, and LPS aloneo was not increased than that of control. The production of nitric oxide in the peritoneal macrophages stimulated with IFN-r and CBP, IFN-r and WSP and IFN-r and SP was significantly increased than that of control, but in the case of stimulated with IFN-r and WSP was increased 50% for CBP and SP. These results suggest that the CBP, WSP and SP of Zoogloea sp. showed direct cytotoxic effect and tumor growth inhibition on Meth A cells in vitro and in vivo, and induced nitric oxide production of activated macrophages.

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The Effect of Koryo-Hand-Acupuncture on Recurrent Abdominal Pain of Children (아동의 반복성 복통에 대한 고려수지요법의 효과)

  • Hong Yeon-Ran
    • Child Health Nursing Research
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    • v.7 no.4
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    • pp.519-529
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    • 2001
  • Recurrent abdominal pain(RAP) occurs in 8-10% of elementary school children. It is suspected that functional causes are about 90% and organic causes about 10% for the recurrent abdominal pain. RAP is treated by antispasmodics or analgesics or antidiarrheal drugs in school health rooms. The purpose of this study was to verify the effect of Koryo-Hand-Acupuncture on recurrent abdominal pain of children. The duration of this study was from April to July, 2001. The subjects were the grade 4th-6th elementary students complaining recurrent abdominal pain. Total subjects were 46 cases; 23 cases of which were placed in experimental and the others in control group. The results of this study were as follows; 1. Numeric-pain-intensity of experimental group received Koryo-Hand-Acupuncture was decreased more than that of control group received mock Koryo-Hand-Acupuncture significantly. 2. Probed current in stomach corresponding point (A12) of experimental received Koryo-Hand-Acupuncture was decreased more than that of control group received mock Koryo-Hand-Acupuncture significantly. 3. Medication requirement rate of experimental group received Koryo-Hand-Acupuncture was decreased more than that of control group received mock Koryo-Hand-Acupuncture significantly. The following suggestions with the results of the study would be made like these; 1. Stimulation implement of Koryo-Hand- Acupuncture should be used independently and each effect should be investigated. 2. With repeated studies for various signs and diseases, the effect of Koryo-Hand- Acupuncture must be verified.

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