• Title/Summary/Keyword: Sympathetic activity

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Study on Activity of Autonomic Nerve System Using Dinamika on Stroke (Dinamika를 이용한 중풍환자의 자율신경계 활성도에 대한 연구)

  • Lee Sung-Do;Jeon Jong-Chul;Park Dong-Il
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.19 no.4
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    • pp.1088-1091
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    • 2005
  • This study was designed to research whether Dinamika can yield a suitable diagnosis for Activity of Autonomic Nene System on stroke. The testing of Dinamika was carried out at Oriental Medical Centar of Dong-Eui University with the participation of 27 patients. The results of Dinamika examinations shows as follows : Group A(the rising of a parasympathetic nerve system) is 0 persons. And Group B(the balancing autonomic none system) is 4 persons. Group C(the rising of a sympathetic nerve system) is 23 persons. There are 7 persons that it is difference of more than $20\%$ between B1 (the control ability of autonomic nerve system) and B2(the potential energy to control autonomic nerve system), 11 person that B1 and B2 are less than $10\%$, 1 person that B1 and B2 are balanced about $60\%$, 8 person that it is balanced domain from $10\%\;to\; 60\%$ between B1 and B2. According to this study on activity of autonomic nerve system using Dinamika on Stroke, these results suggest that 27 patients evidence the problem of autonomic none systems.

The Effects of Superior Cervical Sympathetic Ganglion Block on the Acute Phase Injury and Long Term Protection against Focal Cerebral Ischemia/Reperfusion Injury in Rats (백서의 국소 뇌허혈/재관류로 인한 신경손상에서 상경부 교감 신경절 블록의 급성기 및 장기 보호효과)

  • Jeon, Hae Young;Joung, Kyoung Woon;Choi, Jae Moon;Kim, Yoo Kyung;Shin, Jin Woo;Leem, Jeong Gill;Han, Sung Min
    • The Korean Journal of Pain
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    • v.21 no.2
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    • pp.119-125
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    • 2008
  • Background: Cerebral blood vessels are innervated by sympathetic nerves from the superior cervical ganglia (SCG), and these nerves may influence the cerebral blood flow. The purpose of the present study was to evaluate the neuroprotective effect of superior cervical sympathetic ganglion block in rats that were subjected to focal cerebral ischemia/reperfusion injury. Methods: Eighty male Sprague-Dawley rats (270-320 g) were randomly assigned to one of two groups (the ropivacaine group and a control group). In all the animals, brain injury was induced by middle cerebral artery (MCA) reperfusion that followed MCA occlusion for 2 hours. The animals of the ropivacaine group received $30{\mu}l$ of 0.75% ropivacaine, and their SCG. Neurologic score was assessed at 1, 3, 7 and 14 days after brain injury. Brain tissue samples were then collected. The infarct ratio was measured by 2.3.5-triphenyltetrazolium chloride staining. The terminal deoxynucleotidyl transferase mediated dUTP-biotin nick-end labeled (TUNEL) reactive cells and the cells showing caspase-3 activity were counted as markers of apoptosis at the caudoputamen and frontoparietal cortex. Results: The death rate, the neurologic score and the infarction ratio were significantly less in the ropivacaine group 24 hr after ischemia/reperfusion injury. The number of TUNEL positive cells in the ropivacaine group was significantly lower than those values of the control group in the frontoparietal cortex at 3 days after injury, but the caspase-3 activity was higher in the ropivacaine group than that in the control group at 1 day after injury. Conclusions: The study data indicated that a superior cervical sympathetic ganglion block may reduce the neuronal injury caused by focal cerebral ischemia/reperfusion, but it may not prevent the delayed damage.

AUTONOMIC MECHANISMS OF AN ACUTE STRESS RESPONSE DURING WORD RECOGNITION TASK PERFORMANCE WITH INTENSE NOISE BACKGROUND (백색소음하의 단어재인검사 수행에 따른 자율신경계 스트레스 반응)

  • ;;;Estate Sokhadze
    • Proceedings of the Korean Society for Emotion and Sensibility Conference
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    • 1999.03a
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    • pp.127-132
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    • 1999
  • Cardiovascular, respiratory and electrodermal responses to acute stress episodes modeled by combined presentation of intense white noise and performance of word recognition task with noise background were studied in 15 college students. Experimental procedure consisted in sessions with white noise, word recognition task presentation with noise background and test with noise background. Recorded physiological variables were analyzed in terms of their sensitivity to detect activation of sympathetic and parasympathetic branches of autonomic nervous system and thus reflect autonomic arousal level during shout-term stress-inducing experimental manipulations. It was shown that performance of effortful mental task with noise background elicited significant physiological responses typical for active coping behavior, namely electrodermal arousal and increased cardiovascular activity. this response profile was more profound as compared to white noise only or attending task in noise background. However, all physiological responses were mostly phasic, without long-term tonic changes, since almost all variables recovered to their initial baseline levels, suggesting that dominant autonomic mechanisms in transient acute stress episodes were of parasympathetic nature (withdrawal in stress with subsequent activation in restoration period), while sympathetic contribution was not long-lasting. Nevertheless, increased number of stressors and their longer exposure may result in higher profile of tonic sympathetic arousal and reduced functional role of vagal mechanisms in autonomic balance regulation.

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Correlation Study between Electrogastrography and Heart Rate Variability in Dyspeptic Patients (소화불량 환자에서 위전도 검사와 HRV 검사와의 연관성 연구)

  • Kim, So-Yeon;Han, Chang-Woo;Park, Seong-Ha;Kwon, Jung-Nam;Lee, In;Hong, Jin-Woo;Choi, Jun-Yong
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.26 no.4
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    • pp.532-538
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    • 2012
  • The aim of this study was to find correlation between EGG and HRV parameters in dyspeptic patients. 39 patients (male 8, female 31) were enrolled. EGG and HRV was measured in all patients. EGG parameters like % of gastric slow wave and power ratio were used to classify patients as normal or abnormal EGG groups. HRV parameters which were included TP (total power), LF(low frequency density), HF (high frequency density), and LF/HF ratio were compared between them. EGG parameters were compared among normal, sympathetic hyperactivity, and parasympathetic hyperactivity groups classified by LF/HF ratio. There was no difference in HRV parameters between normal and abnormal EGG groups. Comparing EGG parameters among normal, sympathetic hyperactivity, and parasympathetic hyperactivity groups, both sympathetic and parasympathetic hyperactivity groups had lower value of postprandial regularity of gastric slow wave than normal group. Abnormal value of LF/HF ratio(both sympathetic and parasympathetic hyperactivity) may be related with disturbance of electrical gastric activity in patients with dyspepsia.

High Thoracic Epidural Analgesia for the Control of Pain in Unstable Angina Pectoris -A case report- (불안정형 협심증 환자의 고위 흉부 경막외 진통 효과 -증례보고-)

  • Lee, Bong Jae
    • The Korean Journal of Pain
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    • v.19 no.2
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    • pp.271-274
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    • 2006
  • Unstable angina is a critical phase of coronary heart disease, with widely variable symptoms and prognoses. Recently, despite the advances in surgical revascularization, catheter-based revascularization and medical treatment, an increasing number of patients with angina pectoris are refractory to medical therapy and; therefore, can not be considered as candidates for coronary artery bypass grafting or interventional angioplasty. These patients are often treated with narcotics for pain relief, and forced to severely reduce their levels of activity and productivity. It has become clear that alleviating the pain caused by myocardial ischemia may be possible by altering the sympathetic afferent nerve fibers. Sympathetic blockade can be produced using high thoracic epidural analgesia. Herein, the case of a patient with intractable angina and poor ventricular function, who received high thoracic epidural analgesia to relieve ischemic chest pain, is reported.

A Case of CRPS Treated with Implantable Port System -A case report- (Implantable Port System을 이용한 복합부위통증증후군 치험 1예 -증례 보고-)

  • Shin, Sung-Shick;Kim, Tae-Sam;Yang, In-Sook
    • The Korean Journal of Pain
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    • v.10 no.2
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    • pp.274-277
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    • 1997
  • The complex regional pain syndrome(CRPS) exhibit symptoms such as: abnormal skin color, temperature change, abnormal pseudomotor activity, edema. If CRPS is not treated appropriately at acute stage, then the affected extremity may become a useless, painful appendage. Treatment of CRPS by sympathetic blockade may be achieved by repeated intravenous regional guanethidine blocks, repeated anesthetic sympathetic blocks, surgical sympathectomy or oral sympatholytic therapy. We treated 29-year-old male patient with CRPS of left upper extremity by continuous cervical epidural blockade. Due to wound infection and dislocation of the epidural catheter, we inserted an implantable port system to inject the mixture of local anesthetics and small amount of morphine. After 10 months of treatment, patient was cured of symptoms and signs of CRPS and was able to resume a normal life.

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Sleep-Disordered Breathing and Metabolic Dysfunction (수면호흡장애와 대사적 기능장애)

  • Joo, Soon-Jae;Shin, Chol
    • Sleep Medicine and Psychophysiology
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    • v.12 no.1
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    • pp.17-22
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    • 2005
  • Sleep-disordered breathing (SDB) is associated with increased cardiovascular and cerebrovascular morbidity. Epidemiological and clinic-based studies have shown that SDB is related to impaired glucose tolerance and increased insulin resistance, independent of obesity. Despite of a consistent association between SDB and impaired glucose-insulin metabolism, the mechanism underlying this relationship has not been fully elucidated. It is recognized that hypoxemia and hypercapnia that occur in SDB provoke sympathetic nervous activity and catecholamine, epinephrine and norepinephrine, and cortisol are released. Sympathetic hyperactivity and increased catecholamines can impair glucose homeostasis by increasing glycogenolysis and gluconeogenesis, which can result in increased circulating insulin levels and increased risk of insulin resistance. A prospective study is needed to investigate the causal relationship between SDB and impaired glucose-insulin metabolism in a healthy population without diabetes, hypertension and obesity as etiologic risk factors.

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Factors Associated with Weight Gain and Its Prevention Strategies (체중 증가의 관련 요인과 예방책)

  • Seung Hee Kim
    • Archives of Obesity and Metabolism
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    • v.2 no.2
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    • pp.37-44
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    • 2023
  • Weight gain is defined as the increase in body weight, increasing the prevalence of obesity, and results in metabolic diseases. Weight gain was reportedly caused by the interaction between the obesogenic environmental factors and individual metabolic factors. Sociodemographic and environmental factors (demographic factors, lifestyle/behavioral factors, food/nutritional factors, socioeconomic factors), drug-related secondary causes (some of the corticosteroids, antihyperglycemics, antihypertensives, antidepressants, etc.), and metabolic factors (aging and hormonal changes, menopause and decreased sex hormones, decreased adipocyte degradation, decreased fibroblast growth factor 21, central sympathetic nervous system hyperactivity, decreased sympathetic-adrenomedullary system activity) are significant factors related to weight gain. It is crucial to prevent weight gain and maintain an ideal weight, but studies on the risk factors of weight gain are insufficient. Therefore, this study evaluated the factors associated with weight gain to find strategies for preventing unnecessary weight gain.

Effects of Dietary Supplementation with a Compound Composed of Caffeine, Capsaicin, Sesamine, L-Carnitine, Banaba and Lotus on Human Autonomic Nervous System Activity and Lipid Oxidation

  • Kang, Sung-Hwun;Shin, Ki-Ok
    • Preventive Nutrition and Food Science
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    • v.14 no.3
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    • pp.173-178
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    • 2009
  • This study was conducted to determine if supplementation with a compound composed of caffeine (50 mg), capsaicin (75 mg), sesamine (30 mg), L-carnitine (300 mg), banaba (50 mg) and lotus (10 mg) enhanced human autonomic nervous activities (ANS) associated with thermogenic sympathetic activity and fat utilization. Ten healthy college males (21.2$\pm$1.0 yr) volunteered for this experiment. Autonomic nervous activities associated with energy metabolism were examined at 30 min intervals for a total of 120-min while at rest and every 5-min during exercise at 50% of the ventilation threshold before and after intake of the compound or placebo with 100 ml of water for 10 days. In addition, heart rate variability power spectral analysis was used to assess human autonomic nervous activities. The results indicated that there were no significant differences in heart rate during rest and exercise among trials. Furthermore, the autonomic nervous activity tended to increase after 10-days of consumption of the test compounds during the experimental period, but the differences did not reach statistical significance. However, before and after the compound test trial there was a significantly higher respiratory gas exchange ratio (rest 0: 0.83$\pm$0.01 vs. rest 3: 0.89$\pm$0.02, p<0.05), carbohydrate oxidation (CHO) rate (rest 0: 44.57$\pm$5.83 vs. rest 2: 63.86$\pm$5.91%, p<0.05) and a lower fat oxidation rate (rest 0: 55.43$\pm$5.83 vs. rest 2: 36.14$\pm$5.91%, p<0.05. In conclusion, the results of the present study suggested that the compound composed of caffeine, capsaicin, sesamine, L-carnitine, banaba and lotus components that was evaluated in this study did not induce a significant increase in human autonomic nervous activities or lipolysis, even though the individual components have been reported to induce increased fat oxidation.

Effects of Juniper Essential Oil on the Activity of Autonomic Nervous System

  • Park, Jong-Seong
    • Biomedical Science Letters
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    • v.23 no.3
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    • pp.286-289
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    • 2017
  • This study was designed to clarify the effect of juniper essential oil on the autonomic nervous system. Blood pressure and heart rate variability (HRV) reflecting autonomic nervous system activity were measured. The systolic and diastolic blood pressure were decreased by inhalation of juniper essential oil. High frequency (HF) power level, an indicator of parasympathetic nervous system activity was increased in the stimulation of juniper essential oil. High frequency/low frequency (HF/LF) ratio, an indicator of sympathetic nervous system activity was decreased by the juniper essential oil. These results suggest that juniper essential oil has a modulatory effect on the autonomic nervous system activity.