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Evaluation of Vasodilative Effects on 10 Traditional Herbal Formulas for Treatment of Hypertension (고혈압 치료를 위한 상용하는 한약 처방 10종의 혈관이완 평가)

  • Bumjung Kim
    • The Korea Journal of Herbology
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    • v.39 no.3
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    • pp.69-76
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    • 2024
  • Objectives : Hypertension (high blood pressure), one of the world's major chronic diseases, has a high mortality rate due to its high prevalence and complications, but its control rate is low. The proper management and control through appropriate exercise, diet management, and optimal drug choice can reduce the risk of death from hypertension. Although various antihypertensive drugs are used to treat hypertension, they also have numerous adverse effects. Alongside increased interest in the use of Traditional Herbal Formulas (THF) for hypertension treatment, the purpose of this study was to examine the vasodilative effects of 10 THF in the rat thoracic artery pre-contracted by potassiumchloride (KCl). Methods : THF were extracted with distilled water for 2 hours. The rat thoracic artery was suspended and contracted by KCl in the organ bath which contained 10 ml Krebs Henseleit (KH) buffer. THF extracts were added in a dose-dependent increase (10-1,000 ㎍/mL) to examine vasodilative effects. The vasodilative effects produced by THF were expressed as the percentage in response to KCl-induced contraction. Results : Among the 10 THF, Banhasasim-tang, Buhnsimgieum, Sagunja-tang, and Samul-tang showed vasodilative effects. And, Sipjeondaebo-tang, Ssanghwa-tang, Ojeok-san, Onkyung-tang, Yongdamsagan-tang, and Hyangsayukgunja-tang showed no significant vasodilative effects. Also, in co-administration with amlodipine, Banhasasim-tang showed higher vasodilative effects than amlodipine alone, and Buhnsimgieum showed greater vasodilative effects at low concentrations, but inhibited amlodipine's vasodilative effects at high concentrations. Conclusion : As a result of these studies, they will be expected to provide useful data to establish guidelines of combined administration of THF and western antihypertensive drugs for the treatment of hypertension.

Comparison of local flaps versus skin grafts as reconstruction methods for defects in the medial canthal region

  • Min Hak Lee;Hoon Soo Kim;Yong Chan Bae
    • Archives of Craniofacial Surgery
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    • v.25 no.3
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    • pp.133-140
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    • 2024
  • Background: The medial canthal region features a complex three-dimensional and internal anatomical structure. When reconstructing a defect in this area, it is crucial to consider both functional and aesthetic aspects, which presents significant challenges. Generally, local flaps are preferred for reconstruction; however, skin grafts can be used when local flaps are not feasible. Therefore, we conducted a comparative analysis of surgical outcomes skin grafts when local flaps were not feasible, to determine which surgical method is more effective for medial canthal region reconstruction. Methods: Twenty-five patients who underwent medial canthal region reconstruction using skin grafts or local flaps from 2002 to 2021 were enrolled. Patient information was obtained from medical records. Five plastic surgeons evaluated the surgical outcomes based on general appearance, color, contour, and symmetry. Results: Skin grafts were used in eight patients and local flaps were used in 13. Combined reconstructions were employed in four cases. Minor complications arose in four cases but improved with conservative treatment. No major complications were reported. Recurrence of the skin cancer was noted in two cases. All categories showed higher scores for the local flap compared to both skin graft and combined reconstruction; however, the differences were not statistically significant respectively. Conclusion: The choice of appropriate surgical methods for reconstructing defects in the medial canthal region depends on various factors, including the patient's overall health, the size and depth of the defect, and the degree of involvement of surrounding structures. When a local flap is not feasible, a skin graft may provide favorable surgical outcomes. Therefore, a skin graft can serve as a viable alternative for reconstructing the medial canthal region.

Treatment of Femoral Neck Fractures in the Elderly: A Survey of the Korean Hip Society Surgeons

  • Hong Seok Kim;Je-Hyun Yoo;Young-Kyun Lee;Jong-Seok Park;Ye-Yeon Won
    • Hip & pelvis
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    • v.35 no.3
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    • pp.157-163
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    • 2023
  • Purpose: This study examined the methods for treatment of femoral neck fracture (FNF) preferred by members of the Korean Hip Society (KHS) and identified factors that influence decisions regarding the surgical intervention of choice. Materials and Methods: A total of 97 members of the KHS responded to the 16-question survey which included questions about the mean number of surgeries performed each month for treatment of femoral neck fractures, the cut-off age for deciding between internal fixation and arthroplasty, the implant used most often, usage of cement, and factors influencing each decision. Results: The mean cut-off age used when deciding between internal fixation and arthroplasty was 64 years old. Hemiarthroplasty (HA) (70%) was the most preferred option for treatment of displaced FNFs in cases where arthroplasty was indicated (total hip arthroplasty [THA] 19% and dual mobility THA 11%). The main reasons for selection of arthroplasty over reduction with internal fixation were age and pre-fracture ambulatory status. Pre-trauma ambulatory status and/or sports activity were the main factors in selection of HA over THA. Cement was used by 33% of responders. Poor bone quality and a broad femoral canal were factors that influenced the usage of cement. Conclusion: Management of FNFs in the elderly is a major health problem worldwide; thus, remaining alert to current trends in treatment is essential for surgeons. The mean cut-off age used in deciding between internal fixation and arthroplasty was 64 years old. HA is the preferred method for treatment of displaced FNFs for members of the KHS.

Therapeutic Effect of Crocin in Inflammatory Diseases (염증성 질환에 대한 Crocin의 치료 효과)

  • YoungHee Kim
    • Journal of Life Science
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    • v.34 no.2
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    • pp.138-144
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    • 2024
  • Crocin is a major carotenoid of the Gardenia jasminoides fruit and Crocus sativus stigma (saffron), which are used in various cuisines as flavoring and coloring agents, as well as in phytomedicine for the treatment of several disorders, including headache, fever, edema, fatty liver, viral hepatitis, respiratory disease, menstruation disorders, insomnia, and hypertension. Crocin (C44H64O24) is a chemical diester composed of the dicarboxylic acid crocetin and disaccharide gentiobiose. Many in vitro and in vivo studies have been conducted about the biological and pharmacological function and toxicity of crocin. Crocin has been revealed to have no genotoxicity and pathological manifestation. Crocin acts as an antioxidant, anti-cancer, memory enhancer, anxiolytic, antidepressant, aphrodisiac, anti-atherosclerotic, cardioprotector, and hepatoprotector. Here, an inclusive review of crocin is introduced based on previously explored studies referred to in the literature. Different studies have confirmed the protective role of crocin in the pathogenesis of inflammatory diseases, including inflammatory bowel diseases, gastritis, asthma, atherosclerosis, rheumatoid arthritis, multiple sclerosis, type 1 diabetes, Alzheimer's disease, Parkinson's disease, and depression. It is surmised that crocin suppresses inflammatory, antioxidant, and apoptotic processes through multiple mechanisms. Crocin is considered a safe and effective therapeutic choice for patients with inflammatory conditions, although more research investigating its mechanisms and results acquired in clinical trials are needed.

Surgical treatment of feline intracranial meningiomas: a retrospective study of 26 cases

  • Charles Porsmoguer;Margaux Blondel;Pierre H. M. Moissonnier
    • Journal of Veterinary Science
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    • v.25 no.2
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    • pp.25.1-25.12
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    • 2024
  • Background: Surgical excision is the treatment of choice for feline intracranial meningioma. Objectives: To report clinical findings, complications, and outcomes following surgery for feline intracranial meningioma. Methods: Medical records (01/2000-01/2017) of cats that underwent surgical excision of an intracranial meningioma at our institution were reviewed. Patient data included signalment, clinical signs, surgical technique, complications, histopathologic diagnosis, survival time, and owners' answers to a satisfaction questionnaire. Survival was assessed using the Kaplan-Meier method and log-rank test. Results: Twenty-six cats were included in this study. The exact cause of death was known in 17 cases and was not related to meningioma in 9/17 cases. Overall median survival time was 881 days (95% confidence interval 518; 1248). The age of the cat did not influence survival (p = 0.94) or the occurrence of complications (p = 0.051). Complications occurred in 13/24 cats, including dramatic complications in 4/24 cats. Most complications appeared in the first 24 hours post-surgery (12/13). Males had more postoperative complications (p = 0.042), including more seizures (p = 0.016). Cats with cranioplasty had fewer complications (p = 0.021). Clinical recurrence was confirmed in 3 out of 17 cats. Recurrence-free survival time was 826 days. Most owners (12/14) were satisfied with the outcome. Conclusions: Surgical treatment of intracranial meningioma in cats was associated with a long median survival time but also with a high rate of minor and major postoperative complications, including early postoperative seizures. Cranioplasty may reduce complications. Age at the time of surgery had no effect on outcomes.

Antibiotic Sensitivity to the Major Causative Organisms of Acute Urinary Tract Infection in Children (소아 요로감염증의 주요 원인균과 항생제 감수성)

  • Lee, Yung Kwun;Lee, Hee Chul;Chun, Jung Mi;Yoon, So Young;Lee, Woo Gill;Shin, Son Moon
    • Clinical and Experimental Pediatrics
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    • v.48 no.7
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    • pp.760-765
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    • 2005
  • Purpose : We studied the changes in antibiotic sensitivity to the causative organisms of urinary tract infection(UTI), in order to provide useful information on the choice of adequate drugs in the treatment of UTI. Methods : We retrospectively analyzed the major causative organisms and their antibiotic sensitivities in 69 patients diagnosed with UTI in the Department of Pediatrics, Samsung Cheil Hospital from 2002 to 2003. Results : The frequency of UTI was the highest in infants younger than 1 year of age(88.4 percent). The male to female ratio was 3.05 : 1. Escherichia coli was the most frequent organism(78.3 percent), followed by Klebsiella(11.6 percent), Pseudomonas(2.9 percent), Proteus(2.9 percent), Enterobacter, Morganelle, and Enterococcus(1.4 percent) in descending order. Antibiotic sensitivity of gram negative organisms was above 90 percent against imipenem, amikacin, 80 percent against aztreonam, cefepime, ceftriaxone, 50-70 percent against gentamicin, trimethoprime-sulfamethoxazole (TMP/SMX), and 23 percent against ampicillin(23.4 percent). Conclusion : Antibiotict sensitivity of gram negative organisms was high to amikacin and third generation cephalosporins but low to ampicillin, gentamicin and TMP/SMX. The use of ampicillin or TMP/SMX, as the first choice of the empiric and prophylactic treatment for UTI, should be reconsidered and investigated further.

Effects of Patriotism on Product Evaluation: Focused on the Mediating Effects of Consumer Ethnocentrism (애국심이 제품평가에 미치는 영향: 소비자 자민족중심주의의 매개효과를 중심으로)

  • Hong, Sung-Tai;Kang, Dong-Kyoon
    • Journal of Distribution Research
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    • v.15 no.2
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    • pp.71-99
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    • 2010
  • Most of studies on patriotism in the marketing area have focused on ethnocentric tendencies observed in consumption behaviors. On the contrary, there have been few empirical studies on how patriotism in the general sense, indicating affection for, attachment to, and pride in the country, influences consumers' evaluation of domestic and foreign products. Given the current situation that marketing activities appealing to people's patriotism is increasing, this is somewhat surprising. Thus, this study examined empirically how patriotism influences people's evaluation of domestic and foreign products. In addition, we tested whether consumer ethnocentrism works as an intervening variable in the relation between patriotism and product evaluation. The empirical analysis was conducted through a questionnaire survey of undergraduate and graduate students at universities in Seoul. The survey asked about the respondents' patriotism, consumer ethnocentrism, domestic product evaluation, foreign product evaluation, and demographical characteristics. In foreign product evaluation, the respondents were requested to evaluate Chinese and Japanese products. Email was used to send and recover the questionnaires, and 135 replies were used in the analysis. Major findings from the empirical analysis are as follows. First, a significant relationship was observed between patriotism and domestic product evaluation. That is, patriotic participants evaluated domestic products more favorably. On the other hand, no significant relationship was observed between patriotism and foreign product evaluation(See Table 1-1 and 1-2). Next, the effect of patriotism on domestic product evaluation was mediated by consumer ethnocentrism. However, whether the effect of patriotism on domestic product evaluation is mediated by consumer ethnocentrism partially or fully was different according to product(See Table 2-1 and 2-2). Lastly, we tried to analyze the relation between consumer ethnocentrism and product evaluation and comparing the results with findings of previous researches. According to the results, a significant relationship was observed between consumer ethnocentrism and domestic product evaluation but not between consumer ethnocentrism and foreign product evaluation. The meanings of this study are as follows. First, there have been few marketing studies that investigated the relation between patriotism and product evaluation. Thus, this study is meaningful in that it supplemented the limitation of previous research. Second, consumer ethnocentrism was found to mediate the relation between patriotism and domestic product evaluation. Considering the absence of previous research that examined the role of consumer ethnocentrism as an intervening variable, this study is significant in that it expanded the scope of research on consumer ethnocentrism. Third, from the practical aspect, the results of this study suggest that marketing appealing to patriotism is effective in stimulating consumers' purchase and consumption of domestic products. Accordingly, such a marketing strategy is expected to be effective in protecting domestic markets from imported goods and overseas brands and to increase demands for domestic products and brands. However, there is the question of whether the effect of patriotism based marketing strategies in promoting demand for domestic products would persist. That is, this study could not find a significant relation between patriotism and foreign product evaluation, and this means that the increase in patriotism for the home country does not damage people's view to the quality of foreign products negatively. Accordingly, without change in people's perception of foreign products, it is highly likely that the increase in demand for domestic products or brands induced by patriotism elevated at a specific time or situation may not last long. Fourth, the results of this study suggest that the patriotism level may influence consumers' choice behavior toward retailers strongly connected to a specific country or region. That is, consumers with high level patriotism may hesitate or avoid using a retailer associated with some foreign country. Fifth, according to the results of this study, when people's patriotism is stimulated by a specific social situation or event, it can be an opportunity for domestic franchise brands to increase their market performance such as sales and market share and, at the same time, for foreign franchise brands to experience adversities. Therefore, during a period like the Olympic Games or the World Cup when people's sense of belonging or attachment to their country is heightened, domestic franchise brands need to make marketing activities that may lead market opportunities to substantial results and foreign franchise brands to cope with such adversities. Sixth, consumers' brand choice is often made in retail stores. It has been demonstrated by numerous studies that in store stimuli such as point of purchase display can affect consumers' behavior. Considering this, domestic brands facing competition with foreign brands should make continuous efforts to enhance the market performance of their products through developing in store stimuli that can stimulate consumers' patriotism. Finally, based on the major findings of this study, both academic and practical issues were discussed. Suggestions for future studies were provided.

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Effects of Career Education and Psychological Counseling Satisfaction on Career Self-Efficacy of High School Students (고등학생의 '진로와 직업' 교육과 '진로심리검사' 교육의 만족도가 진로결정 자기효능감에 미치는 영향)

  • Paik, Ju Kyung;Kim, Eung Yong;Chun, Jun Hyep
    • Journal of Naturopathy
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    • v.8 no.1
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    • pp.29-39
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    • 2019
  • Purposes: The purpose of this study was to investigate the satisfaction of each activity in the high school students (568 students) after school career education (Career and vocation, Curriculum-related career education, Special lecture related to career, Entrance exam session, Career psychology test, Internet lecture), and then to analyze the career decision-making self-efficacy of the items Goal selection, Job information, Problem solving and Future plan by high, middle, and low group. Methods: Questionnaires administered to subjects after career education counseling education. Results: Career decision - making self - efficacy was significantly higher in the high group than in the middle and low groups in the goal selection, job information, problem-solving and future planning by the educational satisfaction on career and vocation, curriculum-related lectures, entrance examination session (p<.001). The level of satisfaction of special career lectures was in the order of low group> high group> middle group in career decision self - efficacy, and the values of high and low groups were significantly higher than those of the middle group. The effect of satisfaction on career decision self - efficiency in Career psychological examination education was in the order of top> middle> low groups in goal choice and job information, and the high group values were significantly higher than the middle and low groups. In the problem solving and future planning, there was a difference between high, middle, and low group values, but there was no significant difference. The effect of the satisfaction of the internet course on the career decision self - efficacy was not significant, but there was a difference between the high, middle, and low groups. Satisfaction with the internet course was low and did not affect the decision - making self - efficacy significantly. Conclusion: The higher the satisfaction of career education, the higher self - determination efficacy of goal selection, job information, problem solving and future plan. This study suggests the direction of career education.

An Empirical Study on the Relationships among Manager's Demographic Characteristics, Organizational Characteristics and Strategic Type (최고경영자의 인구통계적 특성, 조직특성과 전략유형의 관련성)

  • Song Kyung-Soo;Chung Dong-Seop
    • Management & Information Systems Review
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    • v.2
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    • pp.47-73
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    • 1998
  • According to the structural contingency theories, organizational structures are determined by such a contingency variables as organizational environment, technology, size, power and strategy. Therefore, many scholor believed that organizational effectiveness will be maximized in the condition of the fit between organizational structure and its contingency variables. But contingency theories have limitations in explaining of the manager's discretion by way of environmental determinism. In 1972, Child introduced strategic choice theory, and this perspective spurred significant, systematic studies of the influence of the managerial voluntary will on the organizational performance. Especially, the question of whether tap managers have an impact on business performance has been addressed by the strategic leadership theory that demonstrates strong associations between the characteristics of top managers, strategic orientation. Therefore, this study has investigated a theoretical literature and an empirical survey that explains the impact of top manger characteristics and organizational characteristics about strategic orientation. In order tn do that, this study develops a research model on the subjects, designed manager's characteristics, strategic typology. Managerial characteristics could be operationalized in terms of demographic measures. In this study, strategic orientation was classified using the Miles & Snow typology. This research model provides hypotheses. Hypotheses H1: The demographic characteristics of the tap manager will differ according to the types of strategic types. H2: The organizational characteristics of the firm will differ according to the types of strategic types. To test these hypotheses, this study conducted questionaire surveys on 108 firms in the Korea national wide. This study has utilized ANOVA, Chi-square analysis, cluster analysis, discriminant analysis for testing the hypotheses. The major findings of this study are summarized as follows. First, this study builds on the central tenent of cotingency theory in provide a comprehensive explanation of the process by which top manager's influence. Second, Manager's characteristics(demographics) are different from each other according to 4 strategic types(Prospector, Defender, Analyzer, Reactor). Third, Organizational characteristics are different from each other according to 4 strategic types. In conclusion, the major contributions of this study are to examine the development of a more comprehensive theoretical framework in the strategic leadership theory and to analyze their contingent relationships among managerial characteristics, organizational characteristics and strategic types in the context of Korea's industry.

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Path analysis of major satisfaction, clinical competence, career decision-making self-efficacy, and career decision level in undergraduate nursing students (간호 대학생의 전공만족도, 임상수행능력, 진로결정 자기효능감과 진로결정 수준 간의 경로분석)

  • Lee, Ji-Won;Lee, Nae-Young;Eo, Yong-Sook
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.1
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    • pp.311-320
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    • 2018
  • This study was conducted to investigate the relationship among major satisfaction (MS), clinical competence (CC), career decision-making self-efficacy (CDMS), and career decision level (CDL) for undergraduate nursing students. A self-report instrument was used to measure MS, CC, CDMS, and CDL. Questionnaires were completed by 307 nursing students in three nursing colleges, and path analysis was employed to validate the proposed model and analyze the causal relationships among variables. Four constructs (MS, CC, CDMS, and career decision) were analyzed. To build a path model, MS and CC were linked to CDMS and career decision. The initial analysis suggested that the modification needed modification; therefore, a covariance link was added. The overall goodness of fit for indices indicated satisfactory path analysis. The indices were revealed as $x^2=2412$, GFI=0.996, AGFI=0.961, and RMSEA=0.068. As a result, the proposed model was acceptable with a good fit, and there were significant direct and indirect effects of paths in the model. Specifically, MS and CC had a direct influence on CDMS, and MS and CDMS directly affected CDL. Moreover, MS and CC had indirect effects on CDL through CDMS. These results imply that students' CDMS should be seriously considered when designing counseling programs for career guidance, and substantiality of CC education is needed to improve CDMS. These results may provide a practical guideline to provide educational intervention for nursing students.