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雙補丸이 卵巢摘出로 骨多孔症을 誘發한 흰쥐에 미치는 영향
朴鍾元,崔相淳,金哲源,朴炳烈 한국전통의학연구소 2000 한국전통의학지 Vol.10 No.1
Aging is characterized by an age-dependent reduction in bone density. Pronounced bone loss by postmenopausal estrogen deficiency induces a bad effect on dynamic balance of bone metabolism. The purpose of this study is to examine what are the effects of the Ssangbohwan(SBH) on the ovariectomized rat model of postmenopausal osteoporosis. The results were summarized as follows : 1. Body weight in control group showed significant increase in comparison with sham, but that in SBH-treated showed no change in comparison with control. 2. The level of serum albumin in control group showed significant decrease in comparison with sham. That in SBH-treated was slightly decreased in comparison with control, which showed no efficacy. 3. The level of serum ALP activity in control group showed significant increase in comparison with sham, but that in SBH-treated was slightly decreased in comparison with control, which showed no efficacy. 4. The level of serum phosphorous in control group showed significant increase in comparison with sham, but that in SBH-treated showed no change in comparison with control. 5. The level of serum calcium in control group showed no change in comparison with sham, but that in SBH-treated was significantly decreased in comparison with control. 6. The level of serum T3 in control group showed no change in comparison with sham, but that SBH-treated showed significant decrease in comparison with control. 7. The level of serum T4 in control group showed significant increase in comparison with sham, and that in SBH-treated showed significant decrease in comparison with control. 8. Trabecular tibia strength in control group showed significant decrease in comparison with sham, but that in SBH-treated was slightly imcreased in comparison with control, which showed no efficacy. According to the above these results, SBH has shown to be capable of preventing and curing osteoporosis caused by old-aged and postmenopause
Developmental characteristic of Bemisia tabaci(Gennadius) Q-biotype on three host plants
Eun Jung Han,Byeong Ryeol Choi,Hyung Man Park,Joon Ho Lee 한국응용곤충학회 2008 한국응용곤충학회 학술대회논문집 Vol.2008 No.05
Developmental periods of sweet potato whitefly, Bemisia tabaci(Gennaius) Q-biotype, were investigated on three host plants- sweet bell pepper (Capsicum annuum L.), eggplant(Solanum melongena L.) and oriental melon(Cucumis melo L. var. makuwa MAKINO). Egg and nymph development of B. tabaci were studied within temperature ranging of 15℃-35℃ by 2.5℃ under photoperiod 16:8(L:D). Egg period of B. tabaci was the shortest at 32.5℃ and nymphal period was shortest at 27.5℃ on sweet bell pepper. Nymphal period of B. tabaci on eggplant was the shortest at 27.5℃ as well. On the other hand, nymphal period of B. tabaci was shortest at 30℃ and 32.5℃. Lower temperature threshold and effective degree-day for completing egg development on sweet bell pepper were estimated as 13.11, 91.95, respectively. Lower threshold temperature of nymphal stage on sweet bell pepper, eggplant, oriental melon were estimated as 13.01, 13.39, 12.31,respectively. Degree-days required to complete nymphal stage on sweet bell pepper, eggplant, oriental melon were estimated as 191.22, 164.41, 190.34, respectively. The relationships between development rates of egg and nymph were well described by poikilothermal rate function and weibull function. The fitted curves will be used as input for a simulation model of the population dynamics of B. tabaci.
Sujeong Min,Si Woo Lee,Byeong-Ryeol Choi,Chang Gyu Park,Si Hyeock Lee,Deok Ho Kwon 한국응용곤충학회 2014 한국응용곤충학회 학술대회논문집 Vol.2014 No.10
Nilaparvata lugens Stål is one of the important migratory pests of rice paddy fields in Korea. Resistance levels to nine insecticides were monitored in 12 local strains and correlation analysis was conducted to determine cross-resistance relationships among the tested insecticides. The local strains revealed 1.3- to 28.0-, 1.6- to 6.0-, 2.8- to 237.0-, 0.6- to 0.9-, and 0.7- to 1.3-fold resistance to carbamates, organophosphates, neonicotinoids, fipronil and etofenprox, respectively. Organophosphates revealed moderate correlations with benzofuranyl methylcarbamate (r = 0.566 - 0.614, p > 0.01). Three neonicotinoids were not correlated each other, but imidacloprid and clothianidin were moderately correlated with several benzofuranyl methylcarbamate and organophosphate insecticides (r = 0.590 - 0.705, p > 0.05), indicating that unknown common factors (such as detoxification enzymes) might contribute to resistance to both insecticides. Fipronil and etofenprox exhibited low levels of resistance and cross-resistance with other insecticides, suggesting their potential as an effective insecticide for field application. Resistance level monitoring and correlation analysis would be valuable for the selection of appropriate insecticides to control insecticide-resistant N. lugenes, a typical migratory pest in Korea.