BackgroundThe study was performed in order to determine the risk factors for difficult tracheal intubation in obstructive sleep apnea patients.MethodsFor 115 male patients with obstructive sleep apnea syndrome and who were undergoing palatal muscle resection (PMR), we investigated the correlation between their age, height, weight, body mass index (BMI), their Epworth Sleepiness Scale (ESS), their apnea-hypopnea index (AHI), their neck circumference and the difficulty of tracheal intubation.ResultsThe factors significantly related to difficult tracheal intubation in obstructive sleep apnea patients were a high AHI and a large neck circumference. There was no significant correlation between weight, BMI, arterial hypertension, ESS and difficult tracheal intubation in obstructive sleep apnea patients.ConclusionsIn this study, a high AHI and a large neck circumference can predict difficult tracheal intubation in obstructive sleep apnea patients.

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-There has been little research on the harvesting time-dependent changes in the antioxidant activities of new varieties of highland cultures of Gomchwi (Ligularia fischeri) crossed with Turcs (Ligularia fischeri (Ledeb.)) and Nakai (Ligularia fischeri var. spiciformis), namely Sammany (S), Gommany (G) and Damogy (D). This study was conducted to assess the effect of different harvesting times on nutritional and health-related properties such as total phenolic contents, flavonoids, DPPH (1,1-diphenyl-2-picrylhydrasyl) free radical scavenging activities and reducing power. From these harvests, extracts were prepared using methanol. Total phenolic content in Jul 14-G (Gommany harvested on July 14, 0.172 ㎎·GAE/㎖) was higher than that in other products harvested after the same period (S, 0.154; D, 0.141 ㎎·GAE/㎖). Flavonoid content was higher in Jul 3-G (0.114 ㎎·QE/㎖), compared to Jul 3-S (0.113 ㎎·QE/㎖) and Jul 14-D (0.089 ㎎·QE/㎖). Antioxidant activities were higher in samples harvested after June 12 in all cases. On July 14, the highest DPPH free radical scavenging activities among all harvest dates were seen (92.875~94.595%). The reducing power was also dependent on harvest day (Abs 0.5~0.6 on July 14), showing a pattern similar to that of DPPH free radical-scavenging activities. Antioxidant activity and harvesting times seem to correlate with total polyphenol and flavonoid contents.Key words -Total phenolic contents, Flavonoids, DPPH free radical scavenging activities, Reducing power, Antioxidant activity *교신저자: kimmjo@kangwon.ac.krTel. +82-33-250-6413 † The authors contributed equally to this work.

This study was conducted to evaluate agronomic characteristics such as growth, quality, and yields of StMyb1R-1 transgenic potato and also to obtain the basic data for establishing assessment guidelines of transgenic potato. Three transgenic lines (Myb 1, Myb 2, and Myb 8) were cultivated under conventional irrigation, drought condition, and severe drought condition and were analyzed by comparing with wild type, non-transgenic cv. Superior. Myb 2 showed a different flower color from wild type and Myb 1 had much bigger secondary leaflets than wild type. Myb 1 and Myb 2 showed higher P 2 O 5 content in both top and root zone and longer shaped tubers than wild type. In yield factors, transgenic lines had more tubers than wild type, however their yield decreases were severe because of the poor enlargement of tuber under water deficit condition. This tendency was noticeable in Myb 1 and Myb 2. In TR ratio, chlorophyll content, dry matter rate, and relative water content, there were no big differences between transgenic lines and wild type. Meanwhile, in phenotype, growth, quality, and yield factors, substantial equivalent was confirmed between Myb 8 and wild type. Then, Myb 8 showed the highest marketable tuber yield under conventional irrigation, while showed lower level than wild type under water deficit. Judged by this result, the enhancing droughttolerance by StMyb1R-1 gene might actually not mean the enhancement of photosynthesis or starch accumulation in tuber and, furthermore, not the yield improvement. More detailed research will be required to accurately understand the relationship between StMyb1R-1 and yield factors.

Purpose:The purpose of this study was to pave the way for developing nursing intervention strategies to enhance family resilience by identifying unique patterns of resilience in families of elderly patients with dementia. Methods: The Q-methodology was used to define types and describe characteristics of family resilience. After in-depth interviews with 12 family members of patients with dementia and study of related literature, final 50 Q-samples were selected by collecting the opinions of experts. The selected 50 Q-statements were sorted by 30 family members (P-samples). The PC-QUNAL program was used to analyze Q-sort data. Results: Four distinctive Q-factors for family resilience were identified: I. Seeking positive meaning, II. Developing reasonable cooperation with family members, III. Accepting reality passively, IV. Depending on external resources. Conclusion: Families caring for elderly patients with dementia show unique patterns of family resilience, which result from multi-factors, such as their own belief systems or culture, organizational patterns, and communication processes, in dealing with crisis. The results of this study can be useful in confirming the types of resilience of families of patients with dementia and their characteristics, and the underlying data can be used as to develop tailored nursing strategies for strengthening family capacities to master adversity.