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논문 : 인공사료로 키운 회양목명나방의 세대별 발육 특성
박일권 ( Ii Kwon Park ) 한국임학회 2012 한국산림과학회지 Vol.101 No.2
회양목과 INSECTA F-II(Nihon Nosan Co., Ltd)를 3:7 비율로 섞은 인공사료를 이용하여 회양목명나방을 사육하면서 1~4세대까지의 발육특성을 조사하였다. 인공사료로 키운 회양목명나방의 유충기간은 기주식물인 회양목 잎을 이용하여 키웠을 때보다 더 길었다. 인공사료로 키운 세대 중 1세대와 나머지 세대 간에도 유충기간에 통계적으로 유의한 차이를 보였다. 용화율은 4세대에서 가장 높았으며 다음으로 3, 2, 1세대 순이었다. 번데기 기간은 1세대와 3세대에서만 통계적으로 유의한 차이를보였다. 우화율은 4세대에서 가장 높았으며 3, 1, 2세대 순이었다. 암수 성 충의 크기는 1세대와 4세대 간에 유의한 차이가 보였다. 본 실험에서는 인공사료를 이용하여 회양목명나방 사육이 연중 가능하다는 것을 보여주었고, 4세대에 가면 인공사료에 대한 적응이 완전히 이루어진다는 것을 알 수 있었다. The box tree pyralid, Glyphodes perspectalis, was reared on an artificial diet based on dried powder of box tree leaves, Buxus microphylla var. koreana, and INSECTA F-II (Nihon Nosan Co., Ltd) at a ratio of 3:7 (w:w) and analyzed in their developmental characteristics from 1st to 4th generation. The developmental period of larva reared on artificial diet was longer than that of larva reared on host plant. Significant difference in larval period was also observed between 1st and other generation groups. Pupation rate was the highest in 4th generation followed by 3rd, 2nd, 1st and host plant group. Significant difference in pupal period was noted between 1st and 3rd generation group. Emergence rate was the highest in 4th generation group followed by 3rd, host plant, 1st and 2nd generation group. There is a significant difference in male and female size between 1st and 4th generation group. Our result indicated that stable rearing of box tree pyralid through the year is possible by artificial diet, and the best adaptation to artificial diet was achieved at 4th generation.
급성 췌장염 환자에서 양성자펌프억제제의 효과-예비 연구
유정환 ( Jeong Hwan Yoo ),권창일 ( Chang Ii Kwon ),유광호 ( Kwang Ho Yoo ),윤해리 ( Har Ry Yoon ),김원희 ( Won Hee Kim ),고광현 ( Kwang Hyun Ko ),홍성표 ( Sung Pyo Hong ),박필원 ( Pil Won Park ) 대한소화기학회 2012 대한소화기학회지 Vol.60 No.6
목적: 급성 췌장염의 발생에는 다양한 기전이 관여하고 있고 활성산소가 중요한 역할을 한다고 알려져 있다. 널리 사용되고 있는 양성자펌프억제제인 pantoprazole은 췌장의 소화효소의 분비를 간접적으로 억제하는 작용 외에도 활성산소에 대한 항산화효과와 항염증효과를 가지고 있다. 이번 연구는 이런 pantoprazole의 사용이 급성 췌장염의 임상 경과에 어떤 영향을 미치는지 알아보고자 하였다. 대상 및 방법: 2011년 3월부터 2012년 5월까지 급성 췌장염으로 입원한 환자 중 위식도 역류질환이 동반된 40명을 대상으로 전향적 무작위 배정으로 연구하였다. 20명씩 두 군으로 나누어 한 군에서는 pantoprazole을 투여하였고 다른 군에서는 사용하지 않았다. Pantoprazole은 금식기간 동안에는 하루 2번 40 mg을 정맥 내로 투여하였고 식사 시작 후에는 하루 2번 40 mg을 퇴원할 때까지 경구 투여하였다. 다른 급성 췌장염의 치료는 양 군에서 동일하게 사용되었다. 혈청 amylase, lipase 등의 혈액학적 검사와 APACHE II 점수를 연속적으로 측정하였고 입원 당시 복부 전산화단 층촬영을 시행하여 CT 중증도 지수를 측정하였다. 결과: 양 군 간에 기준 특성, 혈액검사, APACHE II 점수, CT 중증도 지수에서 유의한 차이를 보이지 않았다. Pantoprazole 투여군에서 평균 입원일은 7.4일, 경구 섭취까지 걸린 시간은 69.0시간, 복통이 호전될 때까지 걸린 시간은 59.7시간이었다. APACHE II 점수는 입원 당시에는 3.15이었고 퇴원 시에는 2.35이었다. Pantoprazole을 투여하지 않은 군에서는 평균 입원일은 7.6일, 경구 섭취까지 걸린 시간은 71.4시간, 복통이 호전될 때까지 걸린 시간은 61.8시간이었다. APACHE II 점수는 입원 당시에는 4.4이었고 퇴원 시에는 2.85이었다. 모두 양 군에서 통계학적으로 유의한 차이를 보이지 않았다. 결론: Pantoprazole을 이용한 치료가 급성 췌장염의 경과에 어떤 개선도 보이지 못했다. 그러나 예비 연구라는 점을 고려했을 때, 더 큰 규모의 전향적 무작위 배정 임상연구로 검증이 필요하겠다. Background/Aims: Oxygen free radicals play an important role in acute pancreatitis. Pantoprazole as a proton pump inhibitor (PPI) has pancreatic anti-secretory effect and a pronounced inhibitory reactivity towards hydroxyl radicals. The objective of the study was to investigate the effect of pantoprazole on the course of acute pancreatitis. Methods: We conducted a prospective randomized trial involving 40 patients with acute pancreatitis. Patients were divided into two groups. One group received PPI and the other group did not receive PPI. In the PPI group, patients received pantoprazole 40 mg intravenously twice a day for fasting time, and then 40 mg orally twice a day until discharge. Results: There were no significant differences in baseline characteristics and laboratory markers between two groups. In the pantoprazole group, mean hospital stay was 7.4 days, time to start oral intake was 69.0 hours, and time to pain relief was 59.7 hours. Acute physiology and chronic health evaluation (APACHE) II score was 3.15 at admission day and 2.35 at discharge. On the other hand, in the non-pantoprazole group, mean hospital stay was 7.6 days, time taken to start oral intake was 71.4 hours, and time taken to pain relief was 61.8 hours. APACHE II score was 4.4 at admission and 2.85 at discharge. However, there were no significant differences between two groups. Conclusions: Treatment with pantoprazole did not have influence on the clinical course of acute pancreatitis. But, considering it was a pilot study, large scale prospective trials will be needed.
Park, II-Kwon,Choi, Kwang-Sik,Kim, Do-Hyung,Choi, In-Ho,Kim, Lee-Sun,Bak, Won-Chull,Choi, Joon-Weon,Shin, Sang-Chul John Wiley Sons, Ltd. 2006 Pest management science Vol.62 No.8
<P>Plant essential oils from 40 plant species were tested for their insecticidal activities against larvae of Lycoriella ingénue (Dufour) using a fumigation bioassay. Good insecticidal activity against larvae of L. ingenua was achieved with essential oils of Chenopodium ambrosioides L., Eucalyptus globulus Labill, Eucalyptus smithii RT Baker, horseradish, anise and garlic at 10 and 5 µL L<SUP>−1</SUP> air. Horseradish, anise and garlic oils showed the most potent insecticidal activities among the plant essential oils. At 1.25 µL L<SUP>−1</SUP>, horseradish, anise and garlic oils caused 100, 93.3 and 13.3% mortality, but at 0.625 µL L<SUP>−1</SUP> air this decreased to 3.3, 0 and 0% respectively. Analysis by gas chromatography-mass spectrometry led to the identification of one major compound from horseradish, and three each from anise and garlic oils. These seven compounds and m-anisaldehyde and o-anisaldehyde, two positional isomers of p-anisaldehyde, were tested individually for their insecticidal activities against larvae of L. ingenua. Allyl isothiocyanate was the most toxic, followed by trans-anethole, diallyl disulfide and p-anisaldehyde with LC<SUB>50</SUB> values of 0.15, 0.20, 0.87 and 1.47 µL L<SUP>−1</SUP> respectively. Copyright © 2006 Society of Chemical Industry</P>
Differential regulation of tyrosine hydroxylase expression by sonic hedgehog
Kwon, II Sun,Park, Rae Hee,Choi, Jung Mi,Kim, Seung U.,Lee, Young Don,Suh-Kim, Haeyoung Lippincott Williams Wilkins, Inc. 2006 NEUROREPORT - Vol.17 No.7
Sonic hedgehog functions to induce floor plate in early stages, and spinal motor neurons and midbrain dopaminergic neurons in later stages of development. Here, we investigated the effects of sonic hedgehog on tyrosine hydroxylase expression in three cell lines that correspond to different stages of neural development. Sonic hedgehog increased the tyrosine hydroxylase gene expression in pluripotent P19 cells but repressed it in tyrosine hydroxylase-producing PC12 cells. Promoter analysis in mouse neural stem cells indicated that the N-terminal of sonic hedgehog repressed both the basal and cAMP-dependent protein kinase A-mediated tyrosine hydroxylase activity. These results suggest that the N-terminal of sonic hedgehog increases tyrosine hydroxylase gene expression in cells to acquire dopaminergic phenotypes, but decreases expression in late born neurons by antagonizing the protein kinase A cAMP-responsive element binding protein pathway.