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TOWARD NEXT GENERATION SOLAR CORONAGRAPH: DEVELOPMENT OF COMPACT DIAGNOSTIC CORONAGRAPH ON ISS
Kyungsuk Cho,Suchan Bong,Seonghwan Choi,Heesu Yang,Jihun Kim,Jihye Baek,Jongyeob Park,Eun-Kyung Lim,Rok-Soon Kim,Sujin Kim,Yeon-Han, Kim,Young-Deuk Park,S.W. Clarke,J.M. Davila,N. Gopalswamy,V. M. Nak 한국천문학회 2017 天文學會報 Vol.42 No.2
Cong Zhan,Han Byeol Jang,DanBi Ahn,Suchan Chang,Yeonhee Ryu,Hyung Kyu Kim,Bong Hyo Lee,Xiaowei Guan,Yu Fan,Bae Hwan Lee,Hee Young Kim 한국한의학연구원 2024 Integrative Medicine Research Vol.13 No.1
Background: Our previous studies proved that neurogenic inflammatory spots (or neurogenic spots) have the same physiological features as acupuncture points and that neurogenic spot stimulation generates therapeutic effects in various animal models. However, it is unclear how deeply the neurogenic spots should be stimulated to generate therapeutic effects. Methods: The effects of acupuncture at various needle depths below the neurogenic spot were examined in a rat immobilization stress-induced hypertension (IMH) model. Electroacupuncture was applied to a neurogenic spot at depths of 1, 2, or 3 mm using a concentric bipolar electrode. Results: Electrical stimulation of the neurogenic spot at a 3-mm depth most effectively lowered blood pressure compared with controls and stimulation at 1- and 2-mm depths, which was inhibited by pretreatment with a local anesthetic lidocaine. Electrical stimulation of the neurogenic spot or injection of substance P (SP) at a 3-mm depth significantly excited the rostral ventrolateral medulla (rVLM) compared with superficial stimulation. Electrical stimulation applied at a 3-mm depth on neurogenic spots dominantly caused c-fos expression from rVLM and ventrolateral periaqueductal gray (vlPAG) in IMH rats. Pretreatment with resiniferatoxin (RTX) injection into the neurogenic spot to ablate SP or calcitonin gene-related peptide (CGRP) prevented the effects of 3-mm neurogenic spot stimulation on blood pressure in IMH rats. Conversely, artificial injection of SP or CGRP generated anti-hypertensive effects in IMH rats. Conclusion: Our data suggest that neurogenic spot stimulation at a 3-mm depth generated anti-hypertensive effects through the local release of SP and CGRP and activation of rVLM and vlPAG. Background: Our previous studies proved that neurogenic inflammatory spots (or neurogenic spots) have the same physiological features as acupuncture points and that neurogenic spot stimulation generates therapeutic effects in various animal models. However, it is unclear how deeply the neurogenic spots should be stimulated to generate therapeutic effects. Methods: The effects of acupuncture at various needle depths below the neurogenic spot were examined in a rat immobilization stress-induced hypertension (IMH) model. Electroacupuncture was applied to a neurogenic spot at depths of 1, 2, or 3 mm using a concentric bipolar electrode. Results: Electrical stimulation of the neurogenic spot at a 3-mm depth most effectively lowered blood pressure compared with controls and stimulation at 1- and 2-mm depths, which was inhibited by pretreatment with a local anesthetic lidocaine. Electrical stimulation of the neurogenic spot or injection of substance P (SP) at a 3-mm depth significantly excited the rostral ventrolateral medulla (rVLM) compared with superficial stimulation. Electrical stimulation applied at a 3-mm depth on neurogenic spots dominantly caused c-fos expression from rVLM and ventrolateral periaqueductal gray (vlPAG) in IMH rats. Pretreatment with resiniferatoxin (RTX) injection into the neurogenic spot to ablate SP or calcitonin gene-related peptide (CGRP) prevented the effects of 3-mm neurogenic spot stimulation on blood pressure in IMH rats. Conversely, artificial injection of SP or CGRP generated anti-hypertensive effects in IMH rats. Conclusion: Our data suggest that neurogenic spot stimulation at a 3-mm depth generated anti-hypertensive effects through the local release of SP and CGRP and activation of rVLM and vlPAG.
혐오적 상황에 따른 쥐의 초음파 발성에 관한 문헌적 고찰
김다혜 ( Da Hye Kim ),장수찬 ( Suchan Chang ),이봉효 ( Bong-hyo Lee ),김희영 ( Hee Young Kim ) 대구한의대학교 제한동의학술원 2016 東西醫學 Vol.41 No.3
Objectives:Ultrasonic vocalizations (USVs) may present the emotional states in rats. Especially, 22kHz USVs have been elicited in negative emotion and aversive state. In this paper reviews previous studies concerned about the correlation between 22kHz Ultrasonic vocalization and various aversive states. Methods:We searched several previous literatures, research and review articles including keywords of ‘ultrasonic vocalization’ , ‘drug’ , ‘withdrawal’ or ‘pain’ in Pubmed and reviewed. Results and Conclusions: 1. In the 8 papers reviewed in this paper, recognized experimental rat produced 22-kHz USV calls in the followed 3 different aversive condition. 2. Rats produced 22-kHz USV calls in the withdrawal of drug, fear conditioning and chronic pain. The 22-kHz USV calls divided two different patterns which short and long 22-kHz USVs in the withdrawal of drug. Moreover rats appeared 22-kHz USV calls with the anxiety and depressive like behavior in the aversive condition.
Chromospheric Transient Brightenings associated with Canceling Magnetic Features
박소영,채종철,박성홍,봉수찬,Park, Soyoung,Chae, Jongchul,Park, Sunghong,Bong, Suchan 한국천문학회 2012 天文學會報 Vol.37 No.2
Canceling magnetic features (CMFs) are likely to be a result of magnetic reconnection in the lower atmosphere of the Sun. CMFs are related with chromospheric phenomena such as brightening or jets. In order to observe the fine-scale and highly dynamical structures in the chromospheres, Fast Imaging Solar Spectrograph (FISS) was developed and installed at 1.6 m New Solar Telescope at Big Bear Solar Observatory. Using this FISS data we have studied chromospheric brightenings associated with CMFs. As a result, the chromospheric brightenings related with CMFs have stronger shock waves than one of other regions such as internetwork regions or unipolar magnetic elements