• 제목/요약/키워드: new stimulation

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Spinal cord stimulation in chronic pain: technical advances

  • Isagulyan, Emil;Slavin, Konstantin;Konovalov, Nikolay;Dorochov, Eugeny;Tomsky, Alexey;Dekopov, Andrey;Makashova, Elizaveta;Isagulyan, David;Genov, Pavel
    • The Korean Journal of Pain
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    • 제33권2호
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    • pp.99-107
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    • 2020
  • Chronic severe pain results in a detrimental effect on the patient's quality of life. Such patients have to take a large number of medications, including opioids, often without satisfactory effect, sometimes leading to medication abuse and the pain worsening. Spinal cord stimulation (SCS) is one of the most effective technologies that, unlike other interventional pain treatment methods, achieves long-term results in patients suffering from chronic neuropathic pain. The first described mode of SCS was a conventional tonic stimulation, but now the novel modalities (high-frequency and burst), techniques (dorsal root ganglia stimulations), and technical development (wireless and implantable pulse generator-free systems) of SCS are becoming more popular. The improvement of SCS systems, their miniaturization, and the appearance of new mechanisms for anchoring electrodes results in a significant reduction in the rate of complications and revision surgeries, and the appearance of new waves of stimulation allows not only to avoid the phenomenon of addiction, but also to improve the long-term results of chronic SCS. The purpose of this review is to describe the current condition of SCS and up-to-date technical advances.

The effect of biomechanical stimulation on osteoblast differentiation of human jaw periosteum-derived stem cells

  • Lee, Ju-Min;Kim, Min-Gu;Byun, June-Ho;Kim, Gyoo-Cheon;Ro, Jung-Hoon;Hwang, Dae-Seok;Choi, Byul-Bora;Park, Geun-Chul;Kim, Uk-Kyu
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제39권
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    • pp.7.1-7.9
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    • 2017
  • Background: This study was to investigate the effect of biomechanical stimulation on osteoblast differentiation of human periosteal-derived stem cell using the newly developed bioreactor. Methods: Human periosteal-derived stem cells were harvested from the mandible during the extraction of an impacted third molar. Using the new bioreactor, 4% cyclic equibiaxial tension force (0.5 Hz) was applied for 2 and 8 h on the stem cells and cultured for 3, 7, and 14 days on the osteogenic medium. Biochemical changes of the osteoblasts after the biomechanical stimulation were investigated. No treatment group was referred to as control group. Results: Alkaline phosphatase (ALP) activity and ALP messenger RNA (mRNA) expression level were higher in the strain group than those in the control group. The osteocalcin and osteonectin mRNA expressions were higher in the strain group compared to those in the control group on days 7 and 14. The vascular endothelial growth factor (VEGF) mRNA expression was higher in the strain group in comparison to that in the control group. Concentration of alizarin red S corresponding to calcium content was higher in the strain group than in the control group. Conclusions: The study suggests that cyclic tension force could influence the osteoblast differentiation of periosteal-derived stem cells under optimal stimulation condition and the force could be applicable for tissue engineering.

남녀대학생(男女大學生)의 패션행동(行動)과 최적자극수준(最適刺戟水準) (Fashion Behavior and Optimum Stimulation Level of Male and Female University Students)

  • 김진아;유태순
    • 패션비즈니스
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    • 제1권2호
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    • pp.55-64
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    • 1997
  • This study adapted OSL (Optimum Stimulation Level) to induce the customer's behavior, especially customer's fashion behavior. The purpose of the fashion advertisement was to accelerate the purchasing desire for the clothes by catching the customer's attention. OSL is one of the methods. OSL can satisfy customers' desires using the new stimulation that reveals a customer's individual characters. In general, women are more concern about fashion and sensitive to the clothes of new fashion than men. But nowadays, many of the men are also concern about their appearance and fashion. The differences between men and women in fashion behavior and in each factor, of OSL, especially a relationship between OSL factor and fashion behavior are researched in this study. Such differences analyzed to find the sources that can satisfy their various desires. This study was expected to provide good information to plan advertising strategy in unpredictable market situation. The subjects for this study were 308 male and female university students. Mehrabian and Russell (1974),s ASTS(Arousal Seeking Tendency Scale) was adapted to measure the OSL, and twenty questions regarding fashion leadership and clothing importance released by Kwon, Shin, Lee, are adapted to measure the fashion behavior. An ANOVA was used as statistical analyzing method to find out the difference between men and women in fashion behavior. The relationship between fashion behavior and difference between men and women in OSL factors were measured by MANOVA. Conclusions were as follows; 1. In consciousness degree of fashion leadership and clothing importance in the fashion behavior, women were higher than men. 2. There was a difference between men and women in OSL's each factors in "unusual stimuli" and "sensuality", but there is no significant statistical difference in factors of "change", "risk", "new environment". Therefore women are higher than men in the stimulation level of "unusual stimuli" and" sensuality". 3. Low element of OSL relating to fashion behavior is from "change" and "unusual stimuli". 4. For the relationship between OSL and fashion behavior, fashion leadership and clothing importance were recognized better in the group of higher level of "change" and "unusual stimuli" irrespective of sex. In the case of "change" which is one of OSL factors, High OSL groups were higher than low OSL groups in the consciousness level of the fashion leadership and clothing importance. In men's case, High OSL-Change groups were higher than Low OSL-Change groups in the fashion leadership, but there was no difference between two groups in the consciousness of the clothing importance. In the case of "Unusual Stimuli", High OSL groups were superior to Low OSL groups in the fashion leadership, but there was no significant difference between two groups in the clothing importance. In women's case, High OSL-Change groups were superior to Low OSL-Change groups. In the case of "Unusual Stimuli", High OSL groups were superior to Low OSL groups in the fashion leadership, but there was no difference between two groups in the clothing importance.

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흰쥐의 족삼리 및 태충 전침자극에 따른 뇌대사활성의 변화 (Alterations of Cerebral Metabolic Activation Following Electro-Acupuncture Stimulation on ST36 and LR3 Acu-Points in Rats)

  • 손영주;정혁상;구자승;원란;김용석;박영배;손낙원
    • Journal of Acupuncture Research
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    • 제19권1호
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    • pp.159-174
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    • 2002
  • Objective : The meridian theory in oriental medicine explains that each acu-point has a characteristic functional effect. It will be supposed that an acupuncture stimulation on different acu-point evokes different activation on different areas in the central nervous system(CNS) according to the meridian theory. On this supposition, our group tried the semi-quantitative [14C]2-deoxyglucose([14C]2-DG) autoradiography on the acupuncture stimulation to the hindlimb acu-points of Sprague-Dawley rats. Methods : A venous catheter for the intravenous administration of isotope was equipped in the right external jugular vein on 3 days prior to the [14C]2-DG study. On the day of the study, two acupuncture needles were inserted into the ST36(Zusanli) or LR3(Taichong) on the left hindlimb. Electro-acupuncture stimulation (2 Hz, 5 ms, 1~3 mA, 15 minutes) started just before the i.v. injection of [14C]2-DG ($25{\mu}Ci/rat$). The brain and the spinal cord were removed and processed for the [14C] 2-DG autoradiography. Results : The EA stimulation on ST36 reveals over 120% metaboilc activation in Arcuate nucleus, Anterior pretectal nucleus, Dorsal cochlear nucleus, Interposed cerebellar nucleus, and Nucleus of Darkschewitsch. The EA stimulation on LR3 reveals over 120% metaboilc activation in Lateral habenula nucleus, Medial vestibular nucleus, Ventromedial thalamic nucleus, Anteroventral thalamic nucleus, Anterior cingulate cortex, Dentate gyrus, Antero cortical amygdaloid nucleus, Anterior pretectal nucleus, and Dorsal tegmental nucleus compared with the non EA stimulation control group. Conclusion : These results demonstrate that the different acu-points evoke the different activations in brain areas. And with this functional brain mapping study, a new scientific elucidation for the basis of the acupuncture-meridian theory in oriental medicine through differences of activated area in CNS according to the each acupuncture point.

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뇌자기자극을 이용한 운동신경계의 신경생리학적 평가 (Neurophysiological Evaluation of the Motor System Using Transcranial Magnetic Stimulation)

  • 신혜원;손영호
    • Annals of Clinical Neurophysiology
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    • 제13권1호
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    • pp.1-12
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    • 2011
  • Transcranial magnetic stimulation (TMS) is a non-invasive tool used to study aspects of human brain physiology, including motor function and the pathophysiology of various brain disorders. A brief electric current passed through a magnetic coil produces a high-intensity magnetic field, which can excite or inhibit the cerebral cortex. Although various brain regions can be evaluated by TMS, most studies have focused on the motor cortex where motor evoked potentials (MEPs) are produced. Single-pulse and paired-pulse TMS can be used to measure the excitability of the motor cortex via various parameters, while repetitive TMS induces cortical plasticity via long-term potentiation or long-term depression-like mechanisms. Therefore, TMS is useful in the evaluation of physiological mechanisms of various neurological diseases, including movement disorders and epilepsy. In addition, it has diagnostic utility in spinal cord diseases, amyotrophic lateral sclerosis and demyelinating diseases. The therapeutic effects of repetitive TMS on stroke, Parkinson disease and focal hand dystonia are limited since the duration and clinical benefits seem to be temporary. New TMS techniques, which may improve clinical utility, are being developed to enhance clinical utilities in various neurological diseases.

고유수용성신경근촉진법의 짧은 목 굽힘 운동과 신경근전기자극치료가 만성 뇌졸중 환자의 삼킴 기능에 미치는 효과 (The Effects of Short Neck Flexion Exercise in Proprioceptive Neuromuscular Facilitation and Neuromuscular Electrical Stimulation on Swallowing Function in Patients with Chronic Stroke)

  • 김경돈
    • 대한통합의학회지
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    • 제5권4호
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    • pp.31-39
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    • 2017
  • Purpose : The purpose of this study was to examine the effects of short neck flexor strengthening in proprioceptive neuromuscular facilitation and neuromuscular electrical stimulation on swallowing function in patients with chronic stroke and to provide basic data for swallowing rehabilitation in stroke patients. Method : The study involved 30 chronic stroke patients who visited ${\bigcirc}{\bigcirc}$ General Hospital in Daegu Metropolitan City between March and July, 2017. The subjects were randomly assigned to either an experimental group (n=15) or a control group (n=15). Both groups underwent traditional swallowing rehabilitation therapy for 30 minutes five times a week over a six-week period. The experimental group performed short neck flexor exercises, which are part of the proprioceptive neuromuscular facilitation, for 30 minutes three times a week over a six-week period. The control group performed neuromuscular electrical stimulation for 30 minutes three times a week over a six-week period. Based on its results, changes in the patients' swallowing function and degree of food intake were analyzed. Result : In terms of the ASHA NOMS scale and new VFSS scale, the experimental group and the control group showed statistically significant changes in ten sub-items and six sub-items, respectively. Statistically significant differences in one sub-item were found between the groups. Conclusion : PNF-based short neck flexion exercise appear to be effective at improving swallowing function of stroke patients with dysphagia.

Motor and Somato Sensory Evoked Potentials During Intraoperative Surveillance Testing in Patients with Diabetes

  • Lee, Kyuhyun;Kim, Jaekyung
    • International journal of advanced smart convergence
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    • 제9권1호
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    • pp.37-46
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    • 2020
  • Cerebral vascular surgery can damage patients' motor and sensory nerves; therefore, neuromonitoring is performed intraoperatively. Patients with diabetes often have peripheral neuropathy and may be prone to nerve damage during surgery. This study aimed to identify factors that should be considered when diabetic patients undergo intraoperative neuromonitoring during brain vascular surgery and to present new criteria. Methods: In patients with and without diabetes who underwent cerebrovascular surgery (n = 30/group), we compared the intraoperative stimulation intensity, postoperative motor power and sensory, glycated hemoglobin (HbA1c) and glucose levels, and imaging findings. Results: Fasting glucose, blood glucose, and HbA1c levels were 10%, 12.1%, and 9.7%, respectively; they were higher in patients with than in patients without diabetes. Two patients with diabetes had weakness, and 10 required increased Somato sensory evoked potential (SSEP) stimulation, while in 16, motor power recovered over time rather than immediately. The non-diabetic group had no weakness after surgery, but 10 patients required more increased SSEP stimulation. The diabetic group showed significantly more abnormal test results than the non-diabetic group. Conclusion: For patients with diabetes undergoing surgery with intraoperative neuromonitoring, whether diabetic peripheral neuropathy is present, their blood glucose level and the anesthetic used should be considered.

키네티시즘의 '움직임' 지각을 통한 체험적 감성 공간 특성에 관한 연구 (A Study on Characteristics of Experiencing Sensibility Space in The Perception of Kineticism 'Movement')

  • 김준영;윤재은
    • 한국실내디자인학회논문집
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    • 제19권3호
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    • pp.67-76
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    • 2010
  • Recently the trend that human emotions become central is strongly on the rise beyond functions in the area of space. In the present situation, the current study is to examine the characteristics of experiential space of emotions through an approach to space appearing in kinetic art paying attention to the fact that the new spatial expressions and forms of Kineticism lie in introduction of 'movement' as a phenomenon that humans who are main agents of experiences can perceive. For research methods, spatial expressions were proposed according to each characteristic extracting characteristics to create space through 'movement' of Kineticism, and the features of experiential space of emotion were elicited by analyzing sensible elements and perceptual characteristics which stimulate human sensitivity through expressive aspects of 'movement' appearing in the case. As a result, it was found that characteristics appeared including immersion through non-daily stimulation, empathy through visual·perceptual stimulation, syn-aesthetic experiences through stimulation of thinking senses, and perceptual activation through physical movement etc. Namely, the present study has its meanings in seeking another directions and possibilities as emotional space to activate experiencers' diverse perceptions and senses by analyzing the characteristics of experiential emotional space through 'movement' of Kineticism which is one of modern plastic arts.

매선료법(埋線療法)에 대한 문헌적(文獻的) 고찰(考察) (A Literary Study on Embedding Therapy)

  • 이광호;이동희;권기록;박희수;박영엽
    • 대한약침학회지
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    • 제6권3호
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    • pp.15-21
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    • 2003
  • Background : This study focuses on the new acupuncture method of embedding method which inserts a substance on the acupuncture points for continuous stimulation. Clinical applications and cautions were examined through literary investigations. Results : Based on the literary consideration of embedding method, the following results were obtained : 1. Embedding method is a combination of traditional and embedding technique to provide longer duration of stimulation on the acupuncture points. 2. To administer the embedding method, one needs to utilize a embedding thread besides acupuncture apparatus. Sheep gut is commonly used in China and the surgical thread is the choice in Korea. 3. Embedding method may vary from the patient to patient, depending on the nature and location of the illness. Piercing, embedding, and tying are some of the possibilities. 4. Embedding method may have different arrangement of threads based on the choice of usage. 5. Embedding method is effective for various chronic illnesses such as aches, functional diseases, and the diseases of internal organs. 6. When using the embedding methods, cautions against infection and side effects due to strong stimulation are mandatory.

Effectss of Biotin-rich Functional Food (Whalgichan) on Hair Growth and Biological Stimulation in Rat and Human

  • Chung, Cha-Kwon
    • Preventive Nutrition and Food Science
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    • 제5권1호
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    • pp.42-47
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    • 2000
  • For the development of functional food for hair-growth stimulation, this study has tried an in vivo and clinical test. As an in vivo test male Sprague Dawley rats and as a clinical test 27 baldheaded or loosehaired men were recruited. Before the experiment, the total hair count in 6 $\textrm{mm}^2$ of the designated area was 46.5. In four weeks and eight weeks of the functional food feeding it increased to 61.8 and 75.3, respectively. Hence the net increase was totaled at 62% in eight weeks. Also, depilation was decreased by 28%. Before the experiment, average hair loss was 65.7. In four weeks and eight weeks of the functional food feeding it decreased to 55.2 and 47.3, respectively. LDL and phospholipids were decreased by 42% and 36%, respectively during that period. However, HDL was increased by 21%. Forty percent of the subjects responded that itching of head skin was reduced and 34% responded to have reduced dandruff. No side-effects among the subjects were examined and no other blood pa-rameters were significantly affected by the diet. The results in this study suggest that biotin-rich functional food may stimulate cholesterol and lipid metabolism and blood flow leading to the growth of new hair and prevention of hair loss.

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