• Title/Summary/Keyword: age-related resistance.

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An Exploratory Study on Consumer Knowledge and Adoption Intention of Nanotechnology (나노기술에 대한 소비자 지식 및 수용의도 탐색 연구)

  • Bae, Seoung Hun;Kang, Sang Kyu;Lee, Dong Hwan;Chun, Sungyong;Kim, Namhee;Song, Hojoon
    • Knowledge Management Research
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    • v.18 no.3
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    • pp.125-145
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    • 2017
  • The purpose of this research is to understand the general consumer knowledge and adoption intention of nanotechnology products, one of the advanced scientific fields. We examined consumers' knowledge of innovation products based on nanotechnology, by gender and age group, which are divided into benefits, cost, and trust perception. As a result, the benefits were highly perceived in the order of perceived usefulness, perceived gains, and perceived ease of use. In general, it was found that men and older age group perceived the benefits of nanotechnology to be relatively higher than women and younger age groups did. In terms of cost, perceived risk was relatively higher than other variables and a high innovation resistance appeared in the younger 30s group. Finally, we found that trust for nano-related institution is relatively lower than trust for nano-related people and trust for nanotechnology itself.

Prevalence of Aspirin Resistance and Clinical Characteristics in Patients with Cerebral Infarction

  • Choi, Jong-Tae;Shin, Kyung-A;Kim, Young-Kwon
    • Biomedical Science Letters
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    • v.19 no.3
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    • pp.233-238
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    • 2013
  • Aspirin is still the mainstay of antiplatelet therapy in the cardiovascular and cerebrovascular disease. However, some patients are not responsive to the antithrombotic action of aspirin. The aim of this study was to assess the prevalence and clinical characteristics of aspirin resistance in patients with cerebral infarction. We tested platelet function in 557 patients who had been treated with aspirin in J general hospital. Platelet function was tested using the multiple electrode platelet aggregometry (MEA). Platelet reactivity was expressed as area under the aggregation curve (AUC, U) and >30 AUC was defined as aspirin resistance. Aspirin resistance was detected in 16.2% patients. There was not any significant differences in age, gender between aspirin resistance and aspirin sensitive patients. WBC was significantly higher in patients with aspirin resistance (P < .05). HDL-cholesterol was significantly higher in patients with aspirin sensitive (P < .05). Aspirin resistance was positive correlation with platelet count (r =.314, P =.003). The prevalence of aspirin resistance in cerebral infarction was 16.2%, and platelet count were related with aspirin resistance.

Visualization of Phytophthora palmivora Infection in Oil Palm Leaflets with Fluorescent Proteins and Cell Viability Markers

  • Ochoa, Juan C.;Herrera, Mariana;Navia, Monica;Romero, Hernan Mauricio
    • The Plant Pathology Journal
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    • v.35 no.1
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    • pp.19-31
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    • 2019
  • Bud rot (BR) is the most devastating disease affecting oil palm (Elaeis guineensis) crops in Colombia. Its causal agent, Phytophthora palmivora, initiates the infection in immature oil palm leaflets producing necrotic lesions, followed by colonization of opportunistic necrotrophs, which increases disease damage. To improve the characterization of the disease, we transformed P. palmivora using Agrobacterium tumefaciens-mediated transformation (ATMT) to include the fluorescent proteins CFP-SKL (peroxisomal localization), eGFP and mRFP1 (cytoplasmic localization). The stability of some transformants was confirmed by Southern blot analysis and single zoospore cultures; additionally, virulence and in vitro growth were compared to the wild-type isolate to select transformants with the greatest resemblance to the WT isolate. GFP-tagged P. palmivora was useful to identify all of the infective structures that are commonly formed by hemibiotrophic oomycetes, including apoplastic colonization and haustorium formation. Finally, we detected cell death responses associated with immature oil palm tissues that showed reduced susceptibility to P. palmivora infection, indicating that these tissues could exhibit age-related resistance. The aim of this research is to improve the characterization of the initial disease stages and generate cell biology tools that may be useful for developing methodologies for early identification of oil palm materials resistant or susceptible to BR.

Influences of Aerobic and Resistance Exercise on Health-related Problems in Cancer Patients: A review of the literature

  • Ye-Na Jeon;Jeongwoo Jeon;Jihoen Hong;Jaeho Yu;Jinseop Kim;Seong-Gil Kim;Dongyeop Lee
    • Journal of The Korean Society of Integrative Medicine
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    • v.11 no.3
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    • pp.79-89
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    • 2023
  • Purpose : Until recently, the number of cancer patients continues to increase, and these patients have many limitations in their activities of daily living. In the republic of Korea, cancer patients are showing an increasing trend every year. Cancer disease not only significantly reduces the quality of life in individuals, but also causes various side effects if not managed. The purpose of this study was to investigate the effects of aerobic exercise and resistance exercise on health-related problems in cancer patients. Methods : This study searched for studies that applied aerobic exercise and resistance exercise to cancer patients reported in search engines (google scala, dbpia, and pubmed) from 2017 to 2022. Six randomized controlled trials and two systematic reviews and meta-analyses were used for analysis in our study. "physical activity", "exercise", "aerobic exercise", "resistance exercise", and "cancer patient" were the main search terms. The data included aerobic exercise, resistance exercise, cancer patients' muscle strength, physical strength, quality of life, and physical activity. Results : According to the eight studies that met the criteria included in this review study, it was found that aerobic exercise and resistance exercise had an effect on the increase in physical fitness, muscular strength, quality of life, and range of motion in cancer survivors. Conclusion : It was confirmed that aerobic exercise and resistance exercise are safe and effective interventions that can be applied to cancer patients without side effects. A limitation of this study is that it did not examine cancer diseases in various population groups such as the elderly and children. Therefore, in future studies, studies that consider specific details such as age, gender, type of cancer, and physical differences are needed.

Lipopolysaccharide-binding protein plasma levels as a biomarker of obesity-related insulin resistance in adolescents

  • Kim, Ki Eun;Cho, Young Sun;Baek, Kyung Suk;Li, Lan;Baek, Kwang-Hyun;Kim, Jung Hyun;Kim, Ho-Seong;Sheen, Youn Ho
    • Clinical and Experimental Pediatrics
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    • v.59 no.5
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    • pp.231-238
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    • 2016
  • Purpose: Lipopolysaccharide-binding protein (LBP) is a 65-kDa acute phase protein, derived from the liver, which is present in high concentrations in plasma. Data regarding the association between circulating plasma LBP levels and obesity-related biomarkers in the pediatric population are scarce. We aimed to determine whether there was a difference in plasma LBP levels between overweight/obese and normal-weight adolescents and to assess the correlation of circulating LBP levels with anthropometric measures and obesity-related biomarkers, including insulin resistance, liver enzyme levels, and lipid profiles. Methods: The study included 87 adolescents aged 12-13 years; 44 were overweight/obese and 43 were of normal-weight. We assessed anthropometric and laboratory measures, including body mass index (BMI), blood pressure, insulin resistance, liver enzyme levels, and lipid profiles. Plasma LBP levels were measured using an enzyme-linked immunosorbent assay. Results: The mean age of the participants was $12.9{\pm}0.3$ years. Circulating plasma LBP levels were significantly increased in overweight/obese participants compared with those in normal-weight participants ($7.8{\pm}1.9{\mu}g/mL$ vs. $6.0{\pm}1.6{\mu}g/mL$, P<0.001). LBP levels were significantly and positively associated with BMI, systolic blood pressure, aspartate aminotransferase, alanine aminotransferase, total cholesterol, low density lipoprotein-cholesterol, fasting glucose and insulin, and insulin resistance as indicated by the homeostatic model assessment of insulin resistance (HOMA-IR) (all P<0.05). In multivariate linear regression analysis, BMI and HOMA-IR were independently and positively associated with plasma LBP levels. Conclusion: LBP is an inflammatory biomarker associated with BMI and obesity-related insulin resistance in adolescents. The positive correlation between these parameters suggests a potentially relevant pathophysiological mechanism linking LBP to obesity-related insulin resistance in adolescents.

The Effects of Character Pattern on Stress Resistance -of Elderly People- (성격유형이 스트레스 저항에 미치는 영향 -노인 대상-)

  • Youn, Il-Shim;Yi, Seon-Gyu
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.11
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    • pp.4819-4825
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    • 2011
  • This study tried to find out whether character patterns of elderly people are related to stress resistance using brain waves, personal physiological index of cranial nerves. The data were gathered by 1,108 seniors(age 65 and over) who were requested to check brain waves from September, 2007 to December, 2010 in Korean Institute for Research of Psychiatry. 552 of the subject showed the propensity to positive behavior, 556 of them showed the propensity to negative behavior. 735 of the subject showed the propensity to cheerful emotion, 373 of them showed the propensity to depressed emotion. As a result the propensity of emotion was significantly related to the stress resistance, but not the propensity of behavior. In other words, the propensity to cheerful emotion showed higher average stress resistance index than the propensity to depressed emotion. So the person who has the propensity to cheerful emotion can cope with stress better. This study shows the propensity to emotion is related to stress resistance. The influence of the propensity to emotion and how it works should to be studied.

An Exploration on Prescription of Resistance Training for Geriatric Physical Therapy (노인물리치료를 위한 저항트레이닝 처방에 대한 탐색)

  • Shin Hong-Cheul;Jeong Dong-Hyuk
    • The Journal of Korean Physical Therapy
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    • v.15 no.1
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    • pp.61-81
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    • 2003
  • There can be little dissension that the ultimate goal of all physical therapy interventions with the elderly is to restore or maintain the highest level of function possible for the individual. Whenever physical therapists take on this challenge, they assist elders in maintaining their identities as competent adults. Advancing age is associated with profound changes in body composition, including increased fat mass, decreased fat-free mass(particularly muscle), decreased total body water and decreased bone density. Along with these changes in body compositions, and perhaps as a direct result of them, elderly people have lower energy needs, reduced strength and functional capacity and a greatly increased risk for such diseases as noninsulin-dependent diabetes mellitus and osteoporosis. Resistance training is considered a promising intervention for reversing the loss of muscle function and the deterioration of muscle structure that is associated with advanced age. This reversal is thought to result in improvements in functional abilities and health status in the elderly by increasing muscle mass, strength and power and by increasing bone mineral density. In the past couple of decades, many studies have examined the effects of Resistance training on risk factors for age-related diseases or disabilities. We have explored the positive and negative aspects of older adults' participation in resistance training programs. The benefits to older adults are reported to be increased strength, endurance, muscle capacity, and flexibility; more energy; and improved self-image and confidence. The negative aspects include some pain or stiffness and other nonspecific problems. The positive and negative aspects of resistance training are therefore very similar to those in younger populations. Scientific investigations over the past 10 years have demonstrated that resistance training can be safely and successfully implemented in older populations. Even the frail and very sick elderly can benefit and improve their quality of life. Proper design and progression of a resistance training program for older adults is vital to optimal benefits from resistance exercise. The results of data provided by this research on resistance training for health shows that there is enough existing evidence to conclude that resistance training, particularly when incorporated into a comprehensive fitness program, can offer substantial health benefits which can be obtained by persons of all ages. These benefits, including improvements in functional capacity, translate into an improved quality of life.

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Analysis of Changes in Hemodynamic Values after Modified Fontan Procedure (변형 Fontan 술후 혈류역학치 변화추이 분석)

  • 안재호
    • Journal of Chest Surgery
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    • v.21 no.5
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    • pp.816-827
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    • 1988
  • Since 1978, We have experienced 87 cases of Fontan operations and the candidates of that increased in numbers recently with the improvement of the diagnostic and operative technique. We studied the prerequisite factors and hemodynamics of 22 cases of Fontan operations, done during the last one year period, which were 3 tricuspid atresia, 16 functional single ventricle and 3 anatomic single ventricle. The mean age was 68 months and the mortality rate 24%, and 9 patients of under 4 years of age were operated with 22.2% mortality rate, but the youngest, 16 months of age, patient survived well without problems. The preoperative pulmonary artery pressure[PAP], pulmonary vascular resistance[PVR] and postoperative right atrial pressure[RAP], left atrial pressure[LAP] value influenced the mortality, but age, preoperative Hb, preoperative PaO2 and pulmonary artery index[PAI] did not. There were favorable survival tendency in under 15mmHg of preop. PAP, 2a of preop. PVR and under 25cmHyO of postop. RAP, under 15cmHyO of postop LAP. The younger, the more pleural effusion and the longer postoperative admission days. The higher preop. Hb related to the higher postop. transpulmonary pressure gradient and the lower preop. PaO2 and PAI. The higher preop. PaO2, the less pleural effusion and postop. admission days. Preop. PAP closely related to preop. PVR and postop. LAP and high PVR increased the pleural effusion and postop. admission days. The larger PAI, the larger CI. We concluded that there were so many factors influencing the postoperative condition, but preop. PAP, PVR, Hb, postop. RAP and LAP were the most ones.

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Effect of Korean Red Ginseng on metabolic syndrome

  • Yoon, Sang Jun;Kim, Seul Ki;Lee, Na Young;Choi, Ye Rin;Kim, Hyeong Seob;Gupta, Haripriya;Youn, Gi Soo;Sung, Hotaik;Shin, Min Jea;Suk, Ki Tae
    • Journal of Ginseng Research
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    • v.45 no.3
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    • pp.380-389
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    • 2021
  • Metabolic syndrome (MS) refers to a clustering of at least three of the following medical conditions: high blood pressure, abdominal obesity, hyperglycemia, low high-density lipoprotein level, and high serum triglycerides. MS is related to a wide range of diseases which includes obesity, diabetes, insulin resistance, cardiovascular disease, dyslipidemia, or non-alcoholic fatty liver disease. There remains an ongoing need for improved treatment strategies for MS. The most important risk factors are dietary pattern, genetics, old age, lack of exercise, disrupted biology, medication usage, and excessive alcohol consumption, but pathophysiology of MS has not been completely identified. Korean Red Ginseng (KRG) refers to steamed/dried ginseng, traditionally associated with beneficial effects such as anti-inflammation, anti-fatigue, anti-obesity, anti-oxidant, and anti-cancer effects. KRG has been often used in traditional medicine to treat multiple metabolic conditions. This paper summarizes the effects of KRG in MS and related diseases such as obesity, cardiovascular disease, insulin resistance, diabetes, dyslipidemia, or non-alcoholic fatty liver disease based on experimental research and clinical studies.

Effects of resistance training on the inflammatory response

  • Celle, Mariana C.;Fernandez, Maria Luz
    • Nutrition Research and Practice
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    • v.4 no.4
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    • pp.259-269
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    • 2010
  • Resistance training (RT) is associated with reduced risk of low grade inflammation related diseases, such as cardiovascular disease and type 2 diabetes. The majority of the data studying cytokines and exercise comes from endurance exercise. In contrast, evidence establishing a relationship between RT and inflammation is more limited. This review focuses on the cytokine responses both following an acute bout, and after chronic RT. In addition, the effect of RT on low grade systemic inflammation such as individuals at risk for type 2 diabetes is reviewed. Cytokines are secreted proteins that influence the survival, proliferation, and differentiation of immune cells and other organ systems. Cytokines function as intracellular signals and almost all cells in the body either secrete them or have cytokine receptors. Thus, understanding cytokine role in a specific physiological situation such as a bout of RT can be exceedingly complex. The overall effect of long term RT appears to ameliorate inflammation, but the specific effects on the inflammatory cytokine, tumor necrosis factor alpha are not clear, requiring further research. Furthermore, it is critical to differentiate between chronically and acute Interleukin-6 levels and its sources. The intensity of the RT and the characteristics of the training protocol may exert singular cytokine responses and as a result different adaptations to exercise. More research is needed in the area of RT in healthy populations, specifically sorting out gender and age RT acute responses. More importantly, studies are needed in obese individuals who are at high risk of developing low grade systemic inflammatory related diseases. Assuring adherence to the RT program is essential to get the benefits after overcoming the first acute RT responses. Hence RT could be an effective way to prevent, and delay low grade systemic inflammatory related diseases.