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盧載榮,南基桓,李鶴洙 충북대학교 엽연초연구소 1978 煙草硏究 Vol.5 No.-
This experiment was conducted to study the effect of planting and mulching methods on the some characteristics of the flue-cured tobacco leaf. The results obtained are summerized as fellows. 1.Plant type was changed according to planting time and mulching methods. As the plant type of early plating and mulching plot was changed to conical shape, so the light condition received of the plot was improved. 2.As the weight of unit leaf area and percentage of dry matter were high and dried up leaf ratio, leaf area contraction ratio and proportion of midrib were low in earley setting plot, so the leaf quality was good. But weight of a leaf and LAI were small. 3.In the view of leaf quality among the diffent leaf position, the lower and middle leaves of the non-temporary planting plot were especially good. 4.To increase the yield and to improve the leaf quality, it seems desirable to improve the leaf quality by early setting and to increase LAI by increasing the number of leaves.
Jae-Hyung Roh,Jae-Hyeong Park,Hanbyul Lee,Yong-Hoon Yoon,Minsu Kim,Yong-Giun Kim,Gyung-Min Park,Jae-Hwan Lee,In-Whan Seong 대한심장학회 2020 Korean Circulation Journal Vol.50 No.8
Background and Objectives: Nonalcoholic fatty liver disease (NAFLD) is an excessive accumulation of fat into the liver as a result of increased inflammation and insulin resistance. Although there can be common pathogenic mechanisms for NAFLD and hypertension associated with the development of cardiovascular diseases, little data are showing the association between NAFLD and hypertension in a large-scale cohort study. Thus, we evaluated the ability of the fatty liver index (FLI), a surrogate marker of NAFLD, to predict the development of hypertension in healthy individuals. Methods: We included 334,280 healthy individuals without known comorbidities who underwent the National Health check-ups in South Korea from 2009 to 2014. The association between the FLI and hypertension was analyzed using multivariate Cox proportional-hazards models. Results: During a median of 5.2 years' follow-up, 24,678 subjects (7.4%) had new-onset hypertension. We categorized total subjects into quartile groups according to FLI (range: Q1, 0–4.9; Q2, 5.0–12.5; Q3, 12.6–31.0; and Q4, >31.0). The incidence of hypertension was higher in subjects with the highest FLI than in those with the lowest FLI (Q4, 9,968 [11.9%] vs. Q1, 2,277 [2.7%]; p<0.001). There was a significant correlation between the highest FLI and an increased risk of new-onset hypertension (adjusted hazard ratio between Q4 and Q1, 2.330; 95% confidence interval, 2.218–2.448; p<0.001). FLI was significantly associated with an increased risk of new-onset hypertension regardless of baseline characteristics. Conclusions: Higher FLI was independently associated with increased risk of hypertension in a healthy Korean population.
Jae-Hyung Roh,Hyun Jun Cho,Jae-Hwan Lee,Yongku Kim,Yeongwoo Park,Jae-Hyeong Park,Hee-Soon Park,Minsu Kim,Hyang Gon Jin,Yeji Cheon,In-Whan Seong 대한심장학회 2020 Korean Circulation Journal Vol.50 No.4
Background and Objectives: There is insufficient evidence regarding the optimal treatment for asymptomatic carotid stenosis. Methods: Bayesian cross-design and network meta-analyses were performed to compare the safety and efficacy among carotid artery stenting (CAS), carotid endarterectomy (CEA), and medical treatment (MT). We identified 18 studies (4 randomized controlled trials [RCTs] and 14 nonrandomized, comparative studies [NRCSs]) comparing CAS with CEA, and 4 RCTs comparing CEA with MT from MEDLINE, Cochrane Library, and Embase databases. Results: The risk for periprocedural stroke tended to increase in CAS, compared to CEA (odds ratio [OR], 1.86; 95% credible interval [CrI], 0.62–4.54). However, estimates for periprocedural myocardial infarction (MI) were quite heterogeneous in RCTs and NRCSs. Despite a trend of decreased risk with CAS in RCTs (OR, 0.70; 95% CrI, 0.27–1.24), the risk was similar in NRCSs (OR, 1.02; 95% CrI, 0.87–1.18). In indirect comparisons of MT and CAS, MT showed a tendency to have a higher risk for the composite of periprocedural death, stroke, MI, or nonperiprocedural ipsilateral stroke (OR, 1.30; 95% CrI, 0.74–2.73). Analyses of study characteristics showed that CEA-versus-MT studies took place about 10-year earlier than CEA-versus-CAS studies. Conclusions: A similar risk for periprocedural MI between CEA and CAS in NRCSs suggested that concerns about periprocedural MI accompanied by CEA might not matter in real-world practice when preoperative evaluation and management are working. Maybe the benefits of CAS over MT have been overestimated considering advances in medical therapy within10-year gap between CEA-versus-MT and CEA-versus-CAS studies.