• Title/Summary/Keyword: Disease control

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Formulation of Bacillus amyloliquefaciens A-2 and Its Efficacy to Control Tomato Leaf Mold Caused by Fulvia fulva (길항세균 Bacillus amyloliquefaciens A-2를 이용한 토마토 잎곰팡이병 방제용 미생물 제제)

  • Kong, Hyun-Gi;Chun, Ock-Joo;Choi, Ki-Hyuck;Lee, Kwang-Youll;Baek, Joung-Woo;Kim, Hyun-Ju;Murugaiyan, Senthilkumar;Moon, Byung-Ju;Lee, Seon-Woo
    • Research in Plant Disease
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    • v.16 no.1
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    • pp.27-34
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    • 2010
  • This study was performed to develop a formulation using an antagonistic bacterium Bacillus amyloliquefaciens A-2 to control tomato leaf mold caused by Fulvia fulva. B. amyloliquefaciens A-2 was grown in a medium with rice oil and mixed with various carrier and additives. One of the formulations, A2-MP, showed the best disease control value among the tested formulations. The disease control value of A2-MP at 100-fold and 500-fold diluted treatment was not significantly different from that of chemical fungicide triflumizole in a growth chamber. Although disease control effect was decreased by serial diluted treatment of the prepared A2-MP, 1,000-fold diluted treatment of A2-MP still showed high disease control value of 72.0%. For the green house experiments, the disease control values of A2-MP was indicated as 79.4% which is similar to that of chemical fungicide, triflumizole showing 79.6%. When the disease control activity of the formulation A2-MP was compared in tomato production conditions, disease control values of 100-fold diluted A2-MP and 3,000 fold diluted triflumizole exhibited 60%, 81.6%, respectively. The disease control efficiency by A-2MP was 73% of the disease control value of chemical fungicide. The formulation A-2MP maintained the stable bacterial viability and disease control activity when stored at $4^{\circ}C$. This result suggested that A-2MP develped from B. amyloliquefaciens A-2 could be used to control tomato leaf mold.

The Effects of Cardiocerebrovascular Disease Prevention Education Program on Knowledge of Cardiocerebrovascular Disease, Depression, and Physiological Parameters among Older People (심뇌혈관질환 예방교육 프로그램이 노인대학 이용 노인의 심·뇌혈관질환의 지식, 우울 및 생리적 지수에 미치는 효과)

  • Oh, Mi Jung;Lee, In Jeong;Chang, Koung Oh
    • Journal of muscle and joint health
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    • v.24 no.2
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    • pp.77-88
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    • 2017
  • Purpose: The purpose of this study was to examine the effects of cardiocerebrovascular disease prevention program for older adults who were members of a elderly school located in Y city on knowledge of cardiocerebrovascular disease, depression, and physiological parameters. Methods: Nonequivalent control group pretest-posttest design was employed. A total of 50 older people living in Y city were assigned into an experimental group (n=26) or a control group (n=24). The experimental group participated in a 8-weeks cardiocerebrovascular disease prevention program from October 10 to December 2 in 2016. Data were analyzed with SPSS/WIN 21.0 using descriptive statistics, $x^2$ test, Fisher's exact test, and t-test. Results: The results indicated significant differences between the experimental group and control group in the scores of knowledge of cardiocerebrovascular disease (t=-4.60, p<.001), depression(t=3.65, p=.001), physiological parameters including systolic blood pressure (t=6.58, p<.001), diastolic blood pressure (t=4.56, p<.001), and blood glucose level (t=3.04, p=.004). Conclusion: The cardiocerebrovascular disease prevention program have a significant effect on the change of knowledge of cardiocerebrovascular disease, depression, and physiological parameters for elderly school participants.

Predictors of Intention to Quit Smoking among Patient with Coronary Heart Disease (관상동맥질환자의 금연의도에 영향을 미치는 요인)

  • 김은경;김매자;송미령
    • Journal of Korean Academy of Nursing
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    • v.32 no.3
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    • pp.355-363
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    • 2002
  • The purpose of this study was to examine the level of intention to quit smoking and to identify factors influencing intention to quit among patients with coronary heart disease. Method: The subjects consisted of 80 male patients with coronary heart disease (angina pectoris, myocardial infarction) at three hospitals in Seoul. The data were collected with self reporting in a structured questionnaire. Stepwise multiple regression was used to identify predictors of intention to quit. Included variables were attitudes toward smoking cessation, subjective norms, perceived behavioral control, usefulness of smoking cessation, and previous attempts to quit. Result: 1. The mean score for intention to quit was 11.1($\pm$6.1) which was lower than median score of the scale. 2. There were significant correlations between the all predictive variables and the intention to quit(r=.24-.48, p<.05). 3. usefulness of smoking cessation, perceived behavioral control, and previous attempts to quit explained 34.6% of the variance for intention to quit. Conclusion: usefulness of smoking cessation, perceived behavioral control, and previous attempts to quit were identified as important variables in explaining the intention to quit smoking among patients with coronary heart disease. Thus, it is necessary to try to enhance this factors for increasing intention to quit among patients with coronary heart disease.

Epidemiology of astrovirus infection in children

  • Jeong, Hye-Sook;Jeong, Ah-Yong;Cheon, Doo-Sung
    • Clinical and Experimental Pediatrics
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    • v.55 no.3
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    • pp.77-82
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    • 2012
  • Human astrovirus (HAstV) is a major cause of acute diarrhea among children, resulting in outbreaks of diarrhea and occasionally hospitalization. Improved surveillance and application of sensitive molecular diagnostics have further defined the impact of HAstV infections in children. These studies have shown that HAstV infections are clinically milder (diarrhea, vomiting, fever) than infections with other enteric agents. Among the 8 serotypes of HAstV identified, serotype 1 is the predominant strain worldwide. In addition to serotype 1, the detection rate of HAstV types 2 to 8 has increased by using newly developed assays. HAstV is less common compared with other major gastroenteritis viruses, including norovirus and rotavirus; however, it is a potentially important viral etiological agent with a significant role in acute gastroenteritis. A better understanding of the molecular epidemiology and characteristics of HAstV strains may be valuable to develop specific prevention strategies.

Suppression of Bipolaris Stem Rot on Cactus by Heat-inactivated Conidial Suspension of Bipolaris cactivora

  • Choi, Min-Ok;Kim, Sang-Gyu;Kim, Young-Ho
    • The Plant Pathology Journal
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    • v.26 no.3
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    • pp.231-237
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    • 2010
  • The heat-inactivated (at $121^{\circ}C$ for 20 min) conidial suspension of Bipolaris cactivora (HICS) was evaluated for the control of Bipolaris stem rot of cactus caused by B. cactivora. Severe rot symptoms were developed on the cactus stem discs inoculated with B. cactivora from 5 days after inoculation. However, only small brownish spots developed on the stem discs treated with HICS 2 days prior to the pathogen inoculation. HICS also reduced symptom development on cactus stem discs inoculated with other fungal pathogens such as Alternaria alternata, Colletotrichum gloeosporioides, and Fusarium oxysporum, suggesting its disease-inhibitory efficacy may not be pathogen-specific. HICS significantly reduced severities of the stem rot disease on several cactus species including Hylocereus trigonus, Cereus peruvianus, Chamaecereus silvestrii and Gymnocalycium mianovichii, but not on Cereus tetragonus. Extensive wound periderms were formed in the stem tissues of inoculation and/or wounding sites on C. peruvianus treated with HICS alone or prior to the pathogen inoculation, but not on C. tetragonus, indicating the structural modifications may be related to the mechanism of disease suppression by HICS. HICS also reduced the disease development on the grafted cactus (H. trigonus stock and G. mianovichii scion) with the control efficacy nearly equivalent to the application of a commercial fungicide. All of these results suggest HICS can be used as an environmental-friendly agent for the control of the cactus stem disease.

Cognitive improvement by ginseng in Alzheimer's disease

  • Lee, Soon-Tae;Chu, Kon;Kim, Jeong-Min;Park, Hyun-Jeong;Kim, Man-Ho
    • Journal of Ginseng Research
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    • v.31 no.1
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    • pp.51-53
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    • 2007
  • Ginseng shows protective and trophic effects in neurodegenerative diseases in experimental models, and showed cognitive improvement in normal population. To investigate the efficacy of ginseng in patients with Alzheimer's disease, patients, who met NINDS-ADRDA criteria for AD were studied Subjects were randomly assigned to ginseng group and control group, and ginseng group was treated with Korean white ginseng powder (4.5 g/day) for 12 weeks. Efficacy variables included changes in mini-mental status exam (MMSE) and cognitive subscales of Alzheimer's disease assessment scale (ADAS-cog) at 4 weeks and 12 weeks. Baseline MMSE and ADAS scores showed no difference between the two groups. Results showed that ginseng improved ADAS-cog compared to the control group at 12 weeks (p<0.05). MMSE was also increased by ginseng treatment compared to the control at 12 weeks (p<0.01). This study suggests the symptomatic efficacy of ginseng in patients with Alzheimer's disease.

The Effect of Supportive Nursing Care on the Knowledge Level and Compliance of Sick-Role Behavior in Patients with Coronary Artery Disease after Coronary Angiography (지지간호가 관상동맥조영술을 받은 관상동맥질환자의 질병관련 지식과 환자역할행위 이행에 미치는 효과)

  • Choi, Ok Ja;Cho, Bok Hee
    • Korean Journal of Adult Nursing
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    • v.19 no.5
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    • pp.47-55
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    • 2007
  • Purpose: The purpose of this study was to determine the effect of supportive nursing care on the level of knowledge and compliance with sick-role behavior in patients with coronary artery disease after coronary angiography (CAG). Methods: A quasi-experimental research was performed with 81 subjects with coronary artery disease who were admitted for CAG to a cardiovascular department. Among the selected subjects, 40 of them were assigned to experimental group and the rest of them were assigned to control group by convenience. Supportive nursing care was implemented twice by a researcher. Results: 1. The mean score of knowledge related to coronary artery disease was higher in the group who received supportive nursing care than that of the control group (t=2.259, p=.027). 2. The mean score of compliance of sick role behavior was higher in the group who received supportive nursing care than that of the control group (t=4.580, p=.001). Conclusion: The supportive nursing care after CAG was effective in increasing the knowledge level and compliance of sick-role behavior in patients with coronary artery disease. Further studies would be recommended to identify long-term effectiveness of supportive care on patients' outcomes.

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Clinical Features and Prognosis of Corneal Ulcers in Dogs with Chronic Kidney Disease

  • Choi, Heeyeon;Kim, Se Eun;Kim, Taehyun;Jang, Jaeyoung;Hwang, Sun Young;Seo, Kangmoon
    • Journal of Veterinary Clinics
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    • v.38 no.3
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    • pp.115-119
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    • 2021
  • This study was designed to investigate the characteristics of corneal ulcers in dogs with chronic kidney disease (CKD). Medical records of dogs that had been diagnosed with corneal ulcers and chronic kidney disease at Haemaru Referral Animal Hospital between April 1, 2011 and March 31, 2016 were investigated. A control group was randomly selected during the same time period. This group included patients with corneal ulcers but no evidence of systemic disease. The mean healing time of superficial corneal ulcers in the CKD group was 21.0 ± 15.0 days. This was a significantly longer healing time than was observed in the control group (11.0 ± 6.6 days, p = 0.019). The incidence rates of uveitis and keratoconjunctivitis sicca in the CKD group were significantly higher than in the control group (p = 0.000 and p = 0.026, respectively). Additionally, non-healing ulcers had significantly elevated white blood cell counts, while those with healing ulcers had WBC counts within the normal range in CKD group (p = 0.000). This study revealed that corneal ulcers in CKD patients would be delayed epithelial healing process and accompanied by ocular disease which affected to corneal healing compared to non-CKD patients.

Clinical Study on Nonalcoholic Fatty Liver Disease Related Factors: Tumor Marker, Heart Rate Variability, Sasang Constitution (비알코올성지방간의 유관 인자 임상 연구: 종양표지자, 심박변이도, 사상체질)

  • Gwak, Si-Ra;Shen, Lei;Park, Soo-Jung;Kwon, Young-Mi;Joo, Jong-Cheon
    • Journal of Sasang Constitutional Medicine
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    • v.31 no.2
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    • pp.22-30
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    • 2019
  • Objectives The aim of this study is to investigate the related factors of nonalcoholic fatty liver disease (NAFLD). Methods The subjects were 187 persons diagnosed as fatty liver by abdominal ultrasonography. They were divided into three groups according to the severity of fatty liver: control, mild, moderate or severe. The three groups' general characteristics, laboratory results, liver function indexes, metabolic syndrome indexes, tumor markers, heart rate variability values and Sasang constitution distribution were compared and analyzed. Results Male ratio, height, weight, body mass index, red blood cell count, hemoglobin level and creatinine level were higher in NAFLD groups than in control group. The levels of sodium and amylase were higher in control than in NAFLD. In liver function, the levels of aspartate transaminase, alanine transaminase and gamma-glutamyl transpepsidase of NAFLD were higher. In metabolic syndrome index, systolic blood pressure, diastolic blood pressure, waist circumference, total cholesterol, triglyceride and low density lipoprotein cholesterol levels were higher in NAFLD, while high density lipoprotein cholesterol level was higher in control. The alpha-feto protein level was higher in NAFLD, and the heart rate variability was not different between NAFLD and control groups. In Sasang constitution, Taeeumin ratio of NAFLD was higher than of control. Conclusions The results suggest that nonalcoholic fatty liver is clinically related to liver dysfunction, metabolic syndrome, tumor markers, and Sasang constitution. Further studies are needed to control nonalcoholic fatty liver disease and prevent severe disease such as cirrhosis and cancer caused by fatty liver.

Risk Factors of Clonorchis sinensis Human Infections in Endemic Areas, Haman-Gun, Republic of Korea: A Case-Control Study

  • Lee, Sang-Eun;Shin, Hee-Eun;Lee, Myoung-Ro;Kim, Yang-Hee;Cho, Shin-Hyeong;Ju, Jung-Won
    • Parasites, Hosts and Diseases
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    • v.58 no.6
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    • pp.647-652
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    • 2020
  • Clonorchis sinensis is the most common fish-borne intestinal parasite in Korea. The aim of the present investigation was to survey the status of C. sinensis infection and analyze associated risk factors in residents of Haman-gun, Gyeongsangnam-do. A total of 5,114 residents from 10 administrative towns/villages voluntarily agreed to participate in the study, which comprised fecal examination, a questionnaire survey for risk factors, ultrasonography, and enzyme-linked immunosorbent assay for cancer biomarker detection in the blood. We detected C. sinensis eggs in 5.3% of the subjects. By region, Gunbuk-myeon had the highest number of residents with C. sinensis eggs. The infection rate and intensity were higher in male than in female residents. Based on the risk factor questionnaire, infection was highly associated with drinking, a history of C. sinensis infection, and the practice of eating of raw freshwater fish. Extension of the bile duct, infection intensity, and cancer biomarker detection significantly correlated with the presence of eggs in the study population. In conclusion, the development of feasible, long-term control policies and strategies for the elimination of C. sinensis in Korea is still required.