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이침(耳鍼)이 절식(絶食)시킨 흰쥐의 대뇌피질(大腦皮質)에서 CCK 활성변화(活性變化)에 미치는 영향(影響)
김이화,김연정,임백빈,장미현,정주호,김창주,Kim, Ee-Hwa,Kim, Youn-Jung,Lim, Baek-Vin,Jang, Mi-Hyun,Chung, Joo-Ho,Kim, Chang-Ju 대한침구의학회 2000 대한침구의학회지 Vol.17 No.3
Stimulation of the auricle is known to be effective in reducing obesity. The aim of the present study is to investigate whether stimulating a specific auricular acupuncture point is effective on suppression of appetite. Cholesystokinin (CCK) is known to induce a powerful feeding response after central administration and particularly abundant in the cerebral cortex. In food-deprived rats exhibiting a strong drive for feeding, decreased CCK release was markedly detected in the cerebral cortex of the brain. Needling the fasted rats on the specific auricular region increased the CCK level of the cerebral cortex. In conclusion, stimulating the specific auricular points increases CCK-expression in the cerebral cortex of the fasted rats and may be useful for controlling obesity.
이침(耳鍼)이 절식(絶食)시킨 흰쥐의 뇌신경세포(腦神經細胞) 활성변화(活性變化)에 미치는 영향(影響)
김이화,김연정,임백빈,장미현,정주호,김창주,Kim, Ee-Hwa,Kim, Youn-Jung,Lim, Baek-Vin,Jang, Mi-Hyun,Chung, Joo-Ho,Kim, Chang-Ju 대한침구의학회 2001 대한침구의학회지 Vol.18 No.1
Objective : The aim of this study was to investigate the effectiveness of stimulation of specific auricular acupuncture points on appetite suppression. Methods : The fasted rats were deprived of food and water for 48 hours. Stimulation of tho inner auricular region of the rat correspond to the human stomach acupuncture point was made for leptin, tryptophan hydroxylase (TPH) and c-fos expression in the brain of the fasted rats by immunohistochemistry. Results : The immunoteactivities of leptin in the periventricular nucleus of the auricular acupunctured group with fasted were significantly higher compared to those of the fasted group. The immunoreactivities of TPH in the median raphe neucleus and reticulotegmental neucleus pons of the auricular acupunctured group with fasted were significantty higher compared to those of the fasted group. And the immunoreactivities of c-fos in the dentate gyrus of the auricular acupunctured group with fasted were significantly lower compared to those from the fasted group. Conclusions : We conclude that the auricular acupuncture altered leptin and TPH-expression in the brain of the fasted rats. The results suggest that auricular acupuncture may inhibit food intake.
Streptozotocin으로 유발된 당뇨병 흰쥐 대뇌피질에서 침이 Neuronal Nitric Oxide Synthase 발현에 미치는 영향
김이화,황대연,이은용,장미현,김연정,정주호,서정철,김창주,Kim, Ee-Hwa,Hwang, Dae-Yeon,Lee, Eun-Yong,Jang, Mi-Hyun,Kim, Youn-Jung,Chung, Joo-Ho,Seo, Jung-Chul,Kim, Chang-Ju 대한침구의학회 2001 대한침구의학회지 Vol.18 No.5
It has known that acupuncture exerts various effects, such as analgesia, promotion of homeostasis, improvements in brain circulation, and rectification of internal disorders in Oriental medicine. Of particular, acupuncture at the Zusanli acupoint (ST36) has been widely used to relieve symptoms of diabetes mellitus. The effect of acupuncture at Zusanli on neuronal nitric oxide synthase (nNOS)-positive neurons in streptozotocin (STZ)-induced diabetic rats was investigated via immunohistochemistry. Decreased nNOS-positive neurons was detected in cerebrocortex of STZ-induced diabetic rats. Needling on the Zusanli in diabetic rats resulted in increase of nNOS-positive neurons in cerebrocortex, The present study indicate that acupuncture may affect nNOS-positive neurons in cerebrocortex of STZ-induced diabetic rats.
김이화,이은용,장미현,김연정,김창주,정주호,서정철,김연희,Kim, Ee-Hwa,Lee, Eun-yong,Jang, Mi-Hyun,Kim, Youn-Jung,Kim, Chang-Ju,Chung, Joo-Ho,Seo, Jung-Chul,Kim, Youn-hee The Korean Acupuncture Moxibustion Medicine Societ 2001 대한침구의학회지 Vol.18 No.3
목적 : 인진(茵蔯)이 SK-N-MC 신경아세포주에서 에탄올에 의해 유발된 아폽토시스에 대한 보호작용의 기전을 연구하였다. 방법 : SK-N-MC cell line에서의 세포 보호 기전을 알아보기 위하여 reverse transcription polymerase chain reaction (RT-PCR) 기법을 이용하여 bcl-2, bax 및 caspase-3의 변화를 관찰하였다. 결과 : RT-PCR을 이용하여 분석한 결과 SK-N-MC neuroblastoma에서 에탄올 처치는 bax, bcl-2 및 caspase-3 mRNA의 발현을 증가시켰다. 인진액의 전처치후 에탄올 처치한 신경 아세포에서는 에탄올에 의해서 증가된 bax와 caspase-3 mRNA 발현이 억제되었으나, bcl-2의 발현에는 유의한 증가를 나타내지 않았다. 결론 : 이상의 결과를 통하여 에탄올에 의해서 유발된 신경아세포의 아폽토시스에서 인진이 세포보호 효과가 있음이 확인되었고 그 기전은 bax와 caspase-3의 억제에 기인할 가능성을 시사한다고 할 수 있다.
감비수 향 흡입이 절식을 유도한 쥐의 시상하부에서 섭식관련 신경전달물질의 발현과 인지력에 미치는 영향
김동현(Dong-Hyun Kim),고일규(Il-Gyu Ko),김성은(Sung-Eun Kim),김지은(Ji-Eun Kim),강연호(Yeon-Ho Kang),김태운(Tae-Woon Kim),지은상(Eun-Sang Ji),김용민(Yong-Min Kim),김이화(Ee-Hwa Kim),김정범(Jeong-Beum Kim),김동희(Dong-Hee Kim),김창주(Cha 대한스트레스학회 2010 스트레스硏究 Vol.18 No.3
본 연구는 절식을 유도한 ICR계 생쥐에서 감비수 향 흡입이 시상하부에서 leptin과 neuropeptide Y (NPY)의 발현에 미치는 영향과 단기 기억력에 미치는 효과를 알아보고자 하였다. ICR 계열 수컷 쥐 24마리를 무작위 추출법에 의해 대조군, 절식군, 절식과 감비수 향 흡입군(각 군 n=8)의 3군으로 분류하였다. 실험결과, 절식은 시상하부에서 leptin의 발현을 감소시켰고 NPY의 발현은 증가시켰다. 또한, 절식에 의하여 단기 기억력과 해마에서의 신경성장인자인 BDNF의 발현이 감소되었다. 반면에, 절식 중 감비수 향을 흡입 시 시상하부에서 leptin의 발현은 증가되었고 NPY의 발현은 감소되었다. 그리고 감비수 향의 흡입에 의하여 단기 기억력이 향상 되었고 해마에서의 신경성장인자인 BDNF의 발현이 증가되었다. 본 실험 결과, 감비수 향 흡입은 절식 시 증가된 음식섭취에 대한 욕구를 억제할 수 있으며 절식에 의하여 감소된 단기 기억력을 향상시키는 효과가 있음을 알 수 있었다. In the present study, we investigated the effects of Gambisu inhalation on the expressions of neurotransmitters implicated in the food intake in the hypothalamus and cognition using starved mice. For this, the effects of Gambisu inhalation on the expressions of leptin and neuropeptide Y (NPY) in the paraventricular nucleus (PVN) of hypothalamus of starved mice were evaluated by immunohistochemistry. Short-term memory of the mice was also assessed using a passive avoidance task and brain-derived neurothrophic factor (BDNF) expression in the hippocampus was determined by Western blot analysis. ICR mice were divided into three groups: control group, starvation group, and starvation with Gambisu inhalation group. The mice in the food-deprivation group were restricted food for 48 h. The mice in the Gambisu inhalation group were exposed to inhale Gambisu for 60 min twice a day for 2 consecutive days. The present results showed that food-deprivation decreased leptin expression and increased NPY expression in the PVN of the hypothalamus. Food-deprivation decreased short-term memory ability and also suppressed BDNF expression in the hippocampus. However, Gambisu inhalation increased leptin expression and decreased NPY expression in the PVN of hypothalamus under the starvation conditions. Gambisu inhalation alleviated starvation-induced short-term memory impairment and enhanced BDNF expression in the hippocampus under the starvation conditions. The present study revealed that Gambisu inhalation might suppress desire for food intake and exert beneficial effect on cognition by enhancing BDNF expression in the hippocampus under the starvation conditions. (Korean J Str Res 2010;18:209∼217)
3차원 연골 광간섭 단층촬영 이미지들에 대한 영상 재구성 알고리듬 연구
호동수,김이화,김용민,김법민,Ho, Dong-Su,Kim, Ee-Hwa,Kim, Yong-Min,Kim, Beop-Min Korean Society of Medical Physics 2009 의학물리 Vol.20 No.2
최근에 광간섭 단층촬영은 생물학적 조직을 비 침습적으로 이미지를 얻는데 많이 사용되고 있다. 그러나, 광간섭 단층촬영은 노이즈 때문에 해석하는데 아직까지는 어려움을 갖고 있다. 본 논문에서는 인체와 토끼의 연골 이미지들의 이미지에서 잡음을 제거하는 다양한 영상처리 기술을 적용해 보았다. 또한 광간섭 단층촬영으로 얻은 이미지들을 영상 분할 방법을 통해 얻고자 하는 부위를 구별 하였으며 대부분의 이미지들이 영상분할 알고리즘에 적합함을 볼 수 있었다. 그리고, 광간섭 단층영상에 적합한 영상분할 방법을 선택한 후 영상을 재구성 하였다. 광간섭 단층촬영은 작은 깊이와 거리에 제한을 가지고 있기 때문에 영상처리장치에 단점을 가지고 있다. 광간섭 이미지가 매우 작은 공간에서 이루어 짐으로 같은 지역의 영상을 재구성 하기는 어려운 점이 있다. 그래서, 광간섭 단층영상 재구성을 할 때 좋은 매칭 알고리즘 방법이 필요하다. 본 논문에서는 챔퍼 매칭 알고리즘을 사용하여 재구성 하였다. 본 연구에서는 OCT 연골 이미지를 얻어 노이즈 제거, 영상 분할, 3D 광간섭 단층 영상을 재구성 할 수 있었다. Recently, optical coherence tomography (OCT) has demonstrated considerable promise for the noninvasive assessment of biological tissues. However, OCT images difficult to analyze due to speckle noise. In this paper, we tested various image processing techniques for speckle removal of human and rabbit cartilage OCT images. Also, we distinguished the images which get with methods of image segmentation for OCT images, and found the most suitable method for segmenting an image. And, we selected image segmentation suitable for OCT before image reconstruction. OCT was a weak point to system design and image processing. It was a limit owing to measure small a distance and depth size. So, good edge matching algorithms are important for image reconstruction. This paper presents such an algorithm, the chamfer matching algorithm. It is made of background for 3D image reconstruction. The purpose of this paper is to describe good image processing techniques for speckle removal, image segmentation, and the 3D reconstruction of cartilage OCT images.
Anti-Inflammatory Effects of Tongbi-san(通痺散) Extract on RAW264.7 Macrophages
김용민,김희택,김이화,Kim, Yong-Min,Kim, Hee-Taek,Kim, Ee-Hwa The Society of Korean Medicine Ophthalmology 2016 한방안이비인후피부과학회지 Vol.29 No.4
Objectives : This study is to investigate the anti-inflammatory and anti-oxidant effects of Tongbi-san extract (TS) on RAW264.7 macrophages using by cell cytotoxicity, Nitric Oxide (NO) and Prostaglandin $E_2$ ($PGE_2$) production and 1,1-diphenyl-2-picryl ghdrazyl (DPPH) free radical scavenging capability. Methods : Cell cytotoxicity was measured by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The production of NO was measured by Griess assay. The production of $PGE_2$ was measured by immunoassay. And the anti-oxidant activity was measured by the DPPH method. Results : TS did not increased significantly compared to the TS untreated group in the cell cytotoxicity. TS inhibited NO and $PGE_2$ production in lipopolysaccharide-stimulated RAW 264.7 cells. TS had the DPPH free radical scavenging capability. Conclusion : The anti-inflammtory and anti-oxidant effects of TS may be use for a treatment of anti-inflammatory diseases.