• Journal of the Korea Convergence Society
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• v.12 no.1
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• pp.317-326
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• 2021

This study was investigated to identify the factors influencing health related quality of life in older women with low muscle strength in Korea. The study design was a cross sectional study based on 7th Korea National Health and Nutrition Examination Survey data and the data were analyzed using the SPSS 26.0 program. The level of Health related Quality of Life(HRQoL) in older women with low muscle strength was 0.84. There were significant differences on HRQoL according to age, education level, perceived health, aerobic exercise, perceived stress, arthritis, osteoporosis and depression. The risk factors of HRQoL in older women with low muscle strength were age, education level, perceived health, perceived stress, aerobic exercise and arthritis. Based on this results to improve HRQoL, physical activity intervention should be developed to improve muscle strength and to manage arthritis in older women.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2019.10a
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• pp.93-93
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• 2019

골관절염은 연골 파괴 및 연골 형성의 손상을 초래하는 산화 스트레스 세포사와 관련된 염증성 질환이다. 최근에, 엉겅퀴(Cirsium japonicum var. maackii)는 다양한 염증성 질환에 대하여 보호하는 역할을 하는 것으로 보고되었습니다. 그러나, 연골 퇴행 및 골관절염 진행에 대한 엉겅퀴의 역할은 아직 알려져 있지 않았다. 따라서, 본 연구는 골관절염 및 연골 분해 생쥐 모델에서 엉겅퀴의 보호 효과를 조사하였다. 먼저, 엉겅퀴의 활성 성분 함량을 측정하기 위해 총 폴리페놀 함량과 총 플라보노이드 함량 분석을 수행하였다. 그 결과, 건조된 엉겅퀴 지상부의 물 추출물에서 총 폴리페놀 함량은 $149.2{\pm}24.1mg\;GAE/g$ 및 총 플라보노이드 함량은 $27.9{\pm}2.0mg\;NE/g$을 함유하는 것으로 밝혀졌다. 또한, HPLC 분석으로부터 엉겅퀴 지상부 물 추출물의 주요 화합물은 플라보노이드 계열인 cirsimarin과 cirsimaritin으로 확인되었다. 또한, 엉겅퀴 추출물은 조직 병리학적 분석에 의해 입증된 내측 반월판의 불안정화에 의해 유도된 골관절염 마우스 모델에서 연골파괴 억제효과를 나타냈다. 결론적으로, 본 연구결과는 엉겅퀴 추출물이 골관절염과 연골 파괴를 개선 또는 예방할 수 있는 새로운 식 의약 소재로의 개발 가능성을 제시한다.

• Korean Journal of Organic Agriculture
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• v.25 no.4
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• pp.789-804
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• 2017

This study was conducted to investigate the growth and physiologycal activitis of Aruncus dioicus var. kamtschaticus (Maxim.) H. Hara under the NaCl treatment conditions (0, 100, 200, 300 mM). After 30 days treatment, the growth and physiologycal activitis were investigated. In the growth of plants, the plant height, leaf width, leaf length and ion level were reduced at NaCl treatments of more than 100 mM. The total polyphenol content was decreased by NaCl in a concentration-dependent manner compared to the control group. The contents of total flavonoids did not show any difference at the concentration of 200 mM and 300 mM. However, the content of total flavonoid decreased compared with that of control. In antioxidant activity, the DPPH and ABTS radical scavenging activity and reducing power activity were decreased by NaCl concentration compared to the control. When changes in the content of NO production was monitored by ELISA, production inhibitory effect was 94.5%, 70%, 63%, 56.9% in NaCl concentration of 0, 100, 200, 300 mM, respectively. The growth, ion level, antioxidant and anti-inflammation activity of Aruncus dioicus var. kamtschaticus was reduced at NaCl treatments of more than 100 mM.

• Journal of Life Science
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• v.14 no.3
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• pp.396-399
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• 2004

This study was investigated the changes of root length, tissue structure of root tip, and dry matter production of a Dongjinbyeo (DJ) cultivar subjected to 0.4 % agar medium with various concentration of NaCl (salt stress)- and polyethylene glycol 6000 (PEG, drought stress). Root length and dry weight of DJ plant were declined along the high concentration of PEG and NaCl in rice plants. To elucidate the changes of tissue structure in root tip to PEG- and NaCl-treatments, we examined the microscopic observation of root tip in NaCl- and PEG-treated rice plants using Toluidine blue O. By Toluidine blue O staining, methyl-lignin accumulation was found in the epidermis and outer cortex of the elongation zone at an early stage of PEG treatment, whereas was found only the outer cortex of the elongation zone of NaCl-treated root tip. The epidermis of NaCl-treated root tip became soften instead of methyl-lignin accumulation. TR ratio was increased along the high concentration in PEG- and NaCl-treated rice plant as a result of inhibited root elongation under PEG- and NaCl-treatment. From these morphological changes in root stimulated by drought and salt stress, we suggest that agar medium is useful to identify tolerant variety in germination stage under stressful environments.

• Journal of The Korean Society of Grassland and Forage Science
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• v.34 no.2
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• pp.114-119
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• 2014

Salinity and drought stresses are probably the most significant abiotic factor limiting plant's growth, also negatively affect seed germination and early seedling development. To study on effect of NaCl and PEG stress on seed germination and gene expression pattern of tall fescue, the levels of NaCl and PEG-induced water stresses were determined in first experiment. Different concentration of NaCl (0 to 350 mM) and PEG (0 to 30%) were used for seed treatment. Seed Germination percentage reduced with increasing osmotic potential of growth medium either due to NaCl or PEG. Seeds were not germinate at 350 mM NaCl or 30% PEG treatment. On the basis of the results, Kentucky31(E-) had more resistant than Fawn in both stress conditions. Furthermore, we have used an annealing control primer-based differential display reverse transcription-polymerase chain reaction method to identify salt- and drought stress-induced differentially expressed genes (DEGs) in tall fescue leaves. Using 120 annealing control primers, a total of 4 genes were identified and sequenced. The possible roles of the identified DEGs are discussed in the context of their putative role during salinity and drought stresses.

• KOREAN POULTRY JOURNAL
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• v.29 no.4 s.330
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• pp.147-151
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• 1997

칼슘과 인은 닭이나 돼지가 요구하는 무기물의 대부분을 차지하며 또한, 무기물공급에 소요되는 비용의 거의를 차지한다. 어린동물에서의 골격성장, 성장한 동물에서의 난질과 골격강도는 경제적으로 매우 중요하듯이, 수많은 연구가 인공급원 이용률의 중요성을 주지했다. 반면에 칼슘공급원의 이용률에 대한 연구는 다소 미약했다. 사료용 인산염의 생체이용률에 관한 일반적인 경향을 이끌어 낼수 있음에도 불구하고, 상업적으로 이용가능한 인공급원에는 커다란 변이가 관찰되기 때문에 고품질의 사료제품을 유지하기 위해서는 인공급원의 꾸준한 평가제도가 요구된다. 현재로는 단위동물을 위한 인 이용률을 추정할 수 있는 실험실적 방법은 없고 동물 실험만이 유일한 방법으로 남아 있다. 인산염공급원의 칼슘 이용률은 인 이용률과 유사한 형태를 보인다. 석회석류와 굴껍질류 칼슘공급원의 입자크기에 크게 영향을 받는다. 사료내 칼슘수준이 적당할 경우에는 차이가 감소된다. 산란계에서 큰입자 석회석이나 굴껍질의 사용은 사료내 칼슘수준의 부적당, 사료 섭취감소 등과 같은 스트레스 상황에서는 난질 향상 효과가 있다. 산성용액에서의 용해도는 칼슘원마다 다르지만, 칼슘공급원에 따른 바람직한 용해속도에 관한 특별한 제안은 할 수가 없다.

• Research in Plant Disease
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• v.23 no.2
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• pp.99-113
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• 2017

Recently, global warming and drastic climate change are the greatest threat to the world. The climate change can affect plant productivity by reducing plant adaptation to diverse environments including frequent high temperature; worsen drought condition and increased pathogen transmission and infection. Plants have to survive in this condition with a variety of biotic (pathogen/pest attack) and abiotic stress (salt, high/low temperature, drought). Plants can interact with beneficial microbes including plant growth-promoting rhizobacteria, which help plant mitigate biotic and abiotic stress. This overview presents that rhizobacteria plays an important role in induced systemic resistance (ISR) to biotic stress or induced systemic tolerance (IST) to abiotic stress condition; bacterial determinants related to ISR and/or IST. In addition, we describe effects of rhizobacteria on defense/tolerance related signal pathway in plants. We also review recent information including plant resistance or tolerance against multiple stresses ($biotic{\times}abiotic$). We desire that this review contribute to expand understanding and knowledge on the microbial application in a constantly varying agroecosystem, and suggest beneficial microbes as one of alternative environment-friendly application to alleviate multiple stresses.

• Proceedings of the KSCN Conference
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• 2004.05a
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• pp.435.2-436
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• 2004

Cyclophosphamide (CYP)는 일반적으로 항암제로 사용되는 약제로써 투여 후 백혈구 감소증, 황달, 대장염, 신우내의 출혈 등의 부작용을 유발하며, 빈혈증상을 악화시키며, 자유기와 활성산소의 생성으로 산화적 스트레스를 유도한다. 한국당귀 즉 참당귀(Angelica Gigas)는 냉증, 빈혈과 같은 부인과 질환에 주로 쓰이며 혈행을 수월하게 하며, 조혈 및 혈류개선에 사용하고 있는데 CYP를 투여한 흰쥐에서 빈혈이 유도됨을 확인 후 참당귀 추출물의 투여에 의하여 혈액학적 빈혈지표의 개선을 볼 수 있었다.(중략)

• Proceedings of the Korean Society of Crop Science Conference
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• 2006.04a
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• pp.342-343
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• 2006

• Proceedings of the Korean Society of Crop Science Conference
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• 2006.04a
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• pp.344-345
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• 2006