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Meteorological and Chemical Factors Controlling Ozone Formation in Seoul during MAPS-Seoul 2015
Kim, Heejeong,Choi, Woo-Chul,Rhee, Ho-Jun,Suh, Inseon,Lee, Meehye,Blake, Donald R.,Kim, Saewung,Jung, Jinsang,Lee, Gangwoong,Kim, Deug-Soo,Park, Seung-Myung,Ahn, Junyoung,Lee, Sang Deok Taiwan Association for Aerosol Research 2018 Aerosol and air quality research Vol.18 No.9
Sanghee Kim,Subin Kim,Geon Kim,Heejeong Hyun,Yong Kyun Shin,Dong-soon Kim 한국응용곤충학회 2019 한국응용곤충학회 학술대회논문집 Vol.2019 No.04
황색점착트랩의 설치각도에 따른 고설재배 딸기의 주요 해충종들의 부착 특성을 확인하기 위해 수직, 수평 앞면 및 뒷면, 45도 앞면 및 뒷면 등으로 달리 트랩을 설치하여 점착트랩내의 부착위치를 조사하고, 각 트랩에 포획된 곤충종의 다양성을 분석하였다. 설치각도에 따른 점착트랩 내의 포획 위치는 진딧물류와 총채벌레류가 유사하게 모든 각도에서 상부에서 유살수가 많았으나 유의한 차이는 나타나지 않았다. 수직, 45도 윗면 트랩에서 종수와 총포획수가 유의하게 높았으나 각 처리별 Shannon 지수의 차이는 없었다. 45도 윗면 트랩에서만 Shimpson 지수가 높게 나타나 소수 종에 집중된 포획양상을 보였으며 모든 트랩에서 공통적으로 초파리와 총채벌레류가 우점하여 포획되었으나 총포획수가 적은 45도 아랫면 트랩의 경우 이들 우점종의 검출도가 낮았다.
Geon Kim,Subin Kim,Sanghee Kim,Heejeong Hyun,Dong-soon Kim 한국응용곤충학회 2019 한국응용곤충학회 학술대회논문집 Vol.2019 No.04
점착트랩은 특정 광파장에 유인되는 곤충의 반응을 이용하여 비행 곤충의 유살 및 모니터링에 널리 이용되고 있다. 그러나 유색 점착트랩은 해당 색상에 반응을 보이는 모든 곤충을 유인하기 때문에 비표적곤충(Non target insect)이 부착되는 문제가 발생한다. 비표적곤충은 부착면을 차지하여 표적곤충의 유인을 방해하며, 해충밀도 모니터링에 필요한 노력과 시간 소요를 증대시킨다. 본 연구에서는 비표적 곤충과 이물질의 부착을 물리적으로 방지하기 위하여 내경 5mm, 10mm의 방지망을 설치하였을 때, 각 처리에 따른 유입 곤충의 종다양성 지수를 분석하여 방지망의 현장 적용 가능성을 검정하였다. 그 결과 망을 처리하지 않은 트랩과 5mm, 10mm 방지망을 설치한 트랩 간 종다양성 지수에서 유의한 차이를 보이지 않았다. 그러나 포획된 총 종의 수는 망을 처리하지 않은 트랩에서 높게 나타났는데 이는 대형 비표적 곤충의 포획수가 높은 것이 주 요인이었다. 표적 해충인 총채벌레, 가루이 등 미소해충의 유입 빈도 또한 무처리, 5mm, 10mm 간에 유의한 차이를 보이지 않아 방지망의 설치가 표적곤충인 미소해충의 유입에 악영향이 없으며, 5mm 망을 적용하여도 무방하다는 결과를 얻었다.
The Tissue Distribution of Nesfatin-1/NUCB2 in Mouse
Jinhee Kim,Yiwa Chung,Heejeong Kim,Eunji Im,Hyojin Lee,Hyunwon Yang 한국발생생물학회 2014 발생과 생식 Vol.18 No.4
Nesfatin-1, an anorexic nucleobindin-2 (NUCB2)-derived hypothalamic peptide, controls appetite and energy metabolism. Recent studies show that nesfatin-1/NUCB2 is expressed not only in the brain but also in gastric and adipose tissues. Thus, we investigated the distributions of nesfatin-1/NUCB2 in various tissues of male and female mice by real-time PCR, western blotting, and immunohistochemical staining. Real-time PCR analyses showed that NUCB2 mRNA was predominantly expressed in the pituitary and at lower levels in the hypothalamus, spleen, thymus, heart, liver, and muscle of both male and female mice. Expression was much higher in reproductive organs, such as the testis, epididymis, ovary, and uterus, than in the hypothalamus. Western blot analysis of the nesfatin-1 protein level showed similar results to the real-time PCR analyses in both male and female mice. These results suggest that nesfatin-1/NUCB2 have widespread physiological effects in endocrine and non-endocrine organs. In addition, immunohistochemical staining revealed that nesfatin-1 was localized in interstitial cells, including Leydig cells and in the columnar epithelium of the epididymis. Nesfatin-1 was also expressed in theca cells and interstitial cells in the ovary and in epithelial cells of the endometrium and uterine glands in the uterus. These results suggest that nesfatin-1 is a novel potent regulator of steroidogenesis and gonadal function in male and female reproductive organs. Further studies are required to elucidate the functions of nesfatin-1 in various organs of male and female mice.
Th 17 Cells and Nesfatin-1 are associated with Spontaneous Abortion in the CBA/j × DBA/2 Mouse Model
Yiwa Chung,Heejeong Kim,Eunji Im,Philjae Kim,Hyunwon Yang 한국발생생물학회 2015 발생과 생식 Vol.19 No.4
The pregnancy and abortion process involves a complex mechanism with various immune cells present in the implantation sites and several hormones associated with pregnancy, such as leptin, ghrelin and nesfatin-1. However, the mechanism underlying spontaneous abortion by maternal T helper 17 (Th17) present in the implantation sites and nesfatin-1, which is of anorexigenic hormones, is not fully understood so far. Therefore, the purpose of this study was to examine the possible roles of Th17 cells present in the implantation sites and nesfatin-1 expressed in the uterus on spontaneous abortion using the CBA/j × DBA/2 mouse model. Th17 transcription factor, ROR-γt mRNA expression was significantly increased in the abortion sites compared with the implantation sites of abortion model mice on day 14.5 and 19.5 of pregnancy. In addition, the expression levels of IL-17A mRNA were significantly higher in abortion sites than in implantation sites on day 14.5 and 19.5. Moreover, the nesfatin-1/NUCB2 protein and mRNA levels were increased in abortion sites compared with levels in implantation sites of both normal pregnant and abortion model mice on day 14.5 of pregnancy. Interestingly, nesfatin- 1/NUCB2 serum levels were not changed throughout the whole pregnancy in abortion model mice, but its serum level was dramatically increased on day 14.5, and then rapidly decreased on day 19.5 in normal pregnant mice. In this study, we showed for the first time the expression of nesfatin-1/NUCB2 mRNA and protein in implantation sites during pregnancy. The present results suggest that Th17 cells in the uterus may play an important role in the period of implantation and for maintenance of pregnancy. Furthermore, the present results suggest that Th17 cells in implantation sites may be a key regulator for maintenance of pregnancy and provides evidence that activation of these cells may be regulated by nesfatin-1/NUCB2. Further study is needed to elucidate the role of nesfatin-1 expressed in the uterus during pregnancy.
Dysport and Botox at a Ratio of 2.5:1 Units in Cervical Dystonia: A Double-Blind, Randomized Study
Yun, Ji Young,Kim, Jae Woo,Kim, Hee-Tae,Chung, Sun Ju,Kim, Jong-Min,Cho, Jin Whan,Lee, Jee-Young,Lee, Ha Neul,You, Sooyeoun,Oh, Eungseok,Jeong, Heejeong,Kim, Young Eun,Kim, Han-Joon,Lee, Won Yong,Jeon BlackWell Publishing Ltd 2015 Movement disorders Vol.30 No.2
<P>We aimed to compare Dysport (abobotulinumtoxinA, Ipsen Biopharm, Slough, UK) and Botox (onabotulinumtoxinA, Allergan, Irvine, CA, USA) at a 2.5:1 ratio in the treatment of cervical dystonia (CD). A Dysport/Botox ratio of lower than 3:1 was suggested as a more appropriate conversion ratio, considering its higher efficacy and more frequent incidence of adverse effects not only in the treatment of CD but also in other focal movement disorders. A randomized, double-blind, multicenter, non-inferiority, two-period crossover study was done in CD, with a duration of at least 18 months. Patients were randomly assigned to treatment for the first period with Dysport or Botox, and they were followed up for 16 weeks after the injection. After a 4-week washout period, they were switched to the other formulation and then followed up for 16 weeks. The primary outcome was the changes in the Tsui scale between the baseline value and that at 1 month after each injection. A total of 103 patients were enrolled, and 94 completed the study. Mean changes in the Tsui scale between baseline and 4 weeks after each injection tended to favor Botox; however, this was not statistically significant (4.0 ± 3.9 points for the Dysport treatment vs. 4.8 ± 4.1 points for Botox; 95% confidence interval, −0.1-1.7; <I>P</I> = 0.091). The mean change of the Toronto western spasmodic torticollis rating scale score, the proportion of improvement in clinical global impression and patient global impression, and the incidences of adverse events were not significantly different between the two treatments. With regard to safety and efficacy, Dysport was not inferior to Botox in patients with CD at a conversion factor of 2.5:1. [http//clinicaltrial.gov: NCT00950664] © The Authors. Movement Disorders published by Wiley Periodicals, Inc. on behalf of International Parkinson and Movement Disorder Society.</P>