• Journal of Acupuncture Research
• /
• 제26권1호
• /
• pp.135-151
• /
• 2009

Objectives : To survey concept, meaning, and problems of beekeeper's bee sting therapy by reviewing and summarizing outline, indications, and clinical cases of 'Research on Bee Sting Therapy' described in Monthly Yangbonggye. Methods : As a narrative review, literature researches were carried out based on 'Research on Bee Sting Therapy' in Monthly Yangbonggye in the aspects of outline, indications, and clinical cases. In the concrete, outline was just summarized and described, and indications were categorized by recent version of international statistical classification of diseases and related health problems(ICD) of WHO(World health organization), and clinical cases were collected and summarized from the viewpoint of acupoints and methods of therapy. Results : 1. Bee sting therapy is to inject venom into skin by stimulating affected lesions or acupoints on meridian with sting of bee alive for therapeutic purposes. It can be divided into two classes(direct stimulation(直針法) and indirect stimulation(拔針法)) by the differences of methods, and is different from bee venom acupuncture therapy in the aspects of the way of extraction and injection. 2. In this material, bee sting therapy has 83 indications classified into 17 of 22 chapters of ICD. Among clinical cases, cases on neoplasm, goitre, lump, and haemorrhoids by direct stimulation were especially outstanding. 3. The therapeutic acupoints selected in bee sting therapy are mainly Ashi points(阿是穴), and partly acupoints on meridian(經穴), Extra points(經外奇穴), and New points(新穴) with careful consideration of patients' condition. Conclusions : Although bee sting therapy has more or less controversial points of diagnosis, treatment, and management of side effects, it is thought that the accumulated and inherited experiences from old times can be used as meaningful material by further experimental and clinical researches.

• 대한의용생체공학회:의공학회지
• /
• 제23권5호
• /
• pp.405-412
• /
• 2002

경락에서의 침구효과 원리는 침 자극이 인체의 저하된 기능상태로부터 각성상태, 응급상태, 국부적 쇼크 상태로 만들어줌으로써 인체의 전반적 생리기능이 새로운 평형을 이룰 수 있도록 하는데 있다. 그러나, 서양의학에서는 침구치료효과를 시술자의 생체에너지(기) 전달에 의한 효과보다는 단순한 침자극에 의한 신경-내분비-면역 계통의 작용과 반응으로 간주하고있다. 따라서 침구치료의 효과가 침 자극에 의한 경락의 작용임을 확인하고, 시술방법에 따른 전위 변화를 분석하기 위해서 경혈과 비경혈, 절연자침과 비절연자침, 보법과 사법으로 자극했을 때의 전위변화를 측정한 결과, 각각 다른 반응이 나타났다. 이는 동일 경락에서 침구의 작용효과는 단순한 침 자극에 의한 효과뿐만 아니라, 시술자의 생체에너지 전달에 의해 복합적으로 반응할 수 있음을 의미한다. 임상실험을 분석한 결과, 시술방법에 따른 경락에서의 전위 변화는 해당 경락의 허실과 해당장기의 건강상태에 따라 다르게 나타나고 있어서, 경락의 허실상태를 진단할 수 있는 진단 파라메터로서의 유의성을 확인하였다.

• Fisheries and Aquatic Sciences
• /
• 제14권4호
• /
• pp.379-388
• /
• 2011

The mechanism by which gonadotropin-releasing hormone (GnRH) and dopamine (DA) control gonadotropin (GTH) release was studied in male and female rainbow trout using cultured pituitary cells obtained at different reproductive stages. The mechanisms of follicle-stimulating hormone (FSH) release by GnRH and DA could not be determined yet. However, basal and salmon-type GnRH (sGnRH)- or chicken-II-type GnRH (cGnRH-II)- induced luteinizing hormone (LH) release increased with gonadal maturation in both sexes. LH release activity was higher after sGnRH stimulation than cGnRH-II stimulation at maturing stages in both sexes. The GnRH antagonist ([Ac-3, 4-dehydro-$Pro^1$, D-p-F-$Phe^2$, D-$Trp^{3,6}$] GnRH) suppressed LH release by sGnRH stimulation in a dose-dependent manner, although the effect was weak in maturing fish. The role of DA as a GTH-release inhibitory factor differs during the reproductive cycle: the inhibition of sGnRH-stimulated LH release by DA was stronger in immature fish than in maturing, ovulating, or spermiated fish. DA did not completely inhibit sGnRH-stimulated LH release, and DA alone did not alter basal LH release. Relatively high doses ($10^{-6}$ or $10^{-5}M$) of domperidone (DOM, a DA D2 antagonist) increased LH release, which did not change with reproductive stage in either sex. The potency of DOM to enhance sGnRH-stimulated LH release was higher in maturing and ovulated fish than in immature fish. These data suggest that LH release from the pituitary gland is controlled by dual neuroendocrine mechanisms by GnRH and DA in rainbow trout, as has been reported in other teleosts. The mechanism of control of FSH release, however, remains unknown.

• 대한의용생체공학회:의공학회지
• /
• 제36권4호
• /
• pp.95-102
• /
• 2015

Epilepsy is a chronic neurological disease which produces repeated seizures. Over 30% of epileptic patients cannot be treated with anti-epileptic drugs, and surgical resection may cause loss of brain functions. Seizure suppression by electrical stimulation is currently being investigated as a new treatment method as clinical evidence has shown that electrical stimulation to brain could suppress seizure activity. In this paper, design of a real-time closed-loop neurostimulation system for epileptic seizure suppression is presented. The system records neural signals, detects seizures and delivers electrical stimulation. The system consists of a 6-channel electrode, front-end amplifiers, a data acquisition board by National Instruments, and a neurostimulator and Generic Osorio-Frei algorithm was applied for seizure detection. The algorithm was verified through simulation using electroencephalogram data, and the operation of whole system was verified through simulation and in- vivo test.

• 대한의용생체공학회:의공학회지
• /
• 제32권4호
• /
• pp.305-311
• /
• 2011

For effective stimulation with tDCS, spatial focality of induced electrical field(EF) and current density(CD) is one of the important factors to be considered. Recently, there have been some studies to improve the spatial focality via different types of electrodes and their new configurations: some improvements using ring electrodes were reported over the conventional pad electrodes. However, most of these studies assumed isotropic conductivities in the head. In this work, we have investigated the effect of tissue anisotropy on the spatial focality of tDCS with the 4 + 1 ring electrode configuration via a 3-D high-resolution finite element(FE) head model with anisotropic conductivities in the skull and white matter. By examining the profiles of the induced EF from the head models with isotropic and anisotropic conductivities respectively, we found that the spatial focality of the induced EF significantly drops and get diffused due to tissue anisotropy. Our analysis suggests that it is critical to incorporate tissue anisotropy in the effective stimulation of the brain via tDCS.

• 한국응용약물학회:학술대회논문집
• /
• 한국응용약물학회 1998년도 Proceedings of UNESCO-internetwork Cooperative Regional Seminar and Workshop on Bioassay Guided Isolation of Bioactive Substances from Natural Products and Microbial Products
• /
• pp.148-149
• /
• 1998

It has been known that potassium channel openers are a new class of molecules that have attracted general interest because of their potent antihypertensive activity in vivo and vasorelaxant activity in vitro (Hamilton and Weston, 1989). In the present study, it was attempted to examine the effect of the potassium channel opener on catecholamine (CA) secretion evoked by cholinergic stimulation, membrane depolarization and calcium mobilization from the isolated perfused rat adrenal gland. The perfusion of pinacidil (30-300 uM) into an adrenal vein for 20 min produced relatively dose-dependent inhibition in CA secretion evoked by ACh (5.32 mM), high $K^{+}$ (56 mM), DMPP (100 uM for 2 min), McN-A-343 (100 uM for 2 min), cyclopiazonic acid (10 uM for 4 min) and Bay-K-8644 (10 uM for 4 min). Also, under the presence of minoxidil (100 uM), which is also known to be a potassium channel activator, CA secretory responses evoked by ACh, high potassium, DMPP, McN-A-343, Bay-K-8644 and cyclopiazonic acid were also significantly depressed. However, in adrenal glands preloaded with pinacidil (100 uM) under the presence of glibenclamide (1 uM), an antidiabetic sulfonylurea that has been shown to be a specific blocker of ATP-regulated potassium channels (for 20 min), CA secretory responses evoked by ACh, high potassium, DMPP, McN-A-343, Bay-K-8644 and cyclopiazonic acid were considerably recovered to a considerable extent of the normal release as compared to that of pinacidil only. These results, taken together, suggest that pinacidil cause the marked inhibition of CA secretion evoked by stimulation of cholinergic (both nicotinic and muscarinic) receptors as well as by membrane depolarization, indicating strongly that this effect may be mediated by inhibiting influx of extracellular calcium and release in intracellular calcium in the rat adrenomedullary chromaffin cells. Furthermore, these findings suggest strongly that these potassium channel openers-sensitive membrane potassium channels also play an important role in regulating CA secretion.

• Journal of Biosystems Engineering
• /
• 제38권2호
• /
• pp.113-120
• /
• 2013

Purpose: Stem cells provide new opportunities in the regenerative medicine for human or animal tissue regeneration. In this study, we report an efficient method for the modulating behaviors of electro-active stem cells by micro-electric current stimulation (mES) without using chemical agents, such as serum or induction chemicals. Methods: Dental pulp stem cells (DPSCs) were cultured on the tissue culture dish in the mES system. To find a suitable mES condition to promote the DPSC functions, the response surface analysis was used. Results: We found that a working micro-current of 38 ${\mu}A$ showed higher DPSC proliferation compared with other working conditions. The mES altered the expressions of intracellular and extracellular proteins compared to those in unstimulated cells. The mES with 38 ${\mu}A$ significantly increased osteogenesis of DPSCs compared with ones without mES. Conclusions: Our findings indicate that mES may induce DPSC proliferation and differentiation, resulting in applying to DPSCs-based human or animal tissue regeneration.

• 융합정보논문지
• /
• 제9권5호
• /
• pp.104-116
• /
• 2019

변혁적 리더십은 조직 구성원의 혁신행동을 이끌어낼 수 있는 효과적인 직무자원이다. 본 연구에서는 매개요인 등을 고려하여 혁신행동이 지속되는 매커니즘을 확인하고자 변혁적 리더십의 하위요인과 조직 구성원의 혁신행동의 인과관계를 검증하고 이들 관계에서 직무열의의 매개역할을 규명하고자 한다. 본 연구는 공공 및 민간기업에서 혁신행동과 관련성이 높은 직군에 속하는 671명을 대상으로 설문을 실시하였으며, 선행연구를 바탕으로 수립된 가설을 검증하기 위해 구조방정식과 매개분석을 활용하였다. 분석결과 변혁적 리더십의 하위요인인 카리스마와 지적 자극은 직무열의를 통해 혁신행동에 영향을 미치는 것으로 검증되었다. 연구결과를 토대로 기업이 구성원의 혁신행동을 발현할 수 있도록 변혁적 리더의 특성 중 카리스마와 지적자극의 요인을 겸비한 리더를 선정하고 더불어 직무열의를 통해 혁신행동을 높여줄 수 있는 측정도구를 적절하게 활용할 필요가 있음을 실무적으로 시사한다.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2006년도 제37회 하계학술대회 논문집 D
• /
• pp.2171-2172
• /
• 2006

Magnetic nerve stimulation treatment is much backward real condition than other field. Specially, successful medical treatment introduction of magnetic field (MF) can was refered long ago in Avicenna's work, and is thought as age of medicine magnetology development recently. These development is achieved through biologist and biophysicist and clinician's joint effort, but, new mountings and relationship air tassel are developed steadily. Magnetic nerve stimulation treatment field designs treatment system by each function during long wave high-amplitude (traditional magneto therapy of greatly great that strong that) short time that CMF, VMF, PMF field etc. are representative but are HPMT technology in this research and manufacture and special quality did comparative analysis.

• 한국컴퓨터산업학회논문지
• /
• 제7권3호
• /
• pp.263-270
• /
• 2006

자계신경 자극치료는 다른 분야에 비해 많이 낙후된 실정이다. 특히, 자기장(MF)의 성공적인 의료도입이 Avicenna의 연구에서 오래전에 언급되었고, 최근에 의학 magnetology 발달의 시대로 생각될 수 있다. 이러한 발달은 공학자와 생물학자 그리고 임상의의 접합부분 노력을 통하여 이루어지고 있으며, 새로운 장비들과 BT기술은 꾸준히 발전되고 있다. 자계신경 자극치료분야는 CMF, VMF, PMF분야 등이 대표적이나 본 연구에서는 HPMT기술인 장파 high-amplitude(전통적인 magneto-therapy의 크게 대단한 강렬) 짧은시간 치료용 시스템을 각 기능별로 설계하고 제작하여 특성을 비교분석 하였다.