• Title/Summary/Keyword: Nerve stimulation

Search Result 643, Processing Time 0.03 seconds

The Effect that the Application of Time-Based Electrolysis Has on Acute Ischemia

  • Lee, Jung Sook;Song, Young Wha;Kim, Sung Won
    • Journal of International Academy of Physical Therapy Research
    • /
    • v.6 no.2
    • /
    • pp.846-851
    • /
    • 2015
  • This neurological damage accelerates the infection reaction of cells and apoptosis at the time of reperfusion after ischemia occurs. BCL-2/BCL-2 allogeneic begeminum has a function of suppressing the apoptosis of cells, and thus it is inferred that the susceptibility of cells to apoptosis is determined by the amount of allogeneic begeminum present which is determined based on the amount of BAX. Ischemia was induced in SD mice by occluding the common carotid artery for 5 minutes, after which blood was re-perfused. NEES was applied to acupuncture points, at 12, 24, and 48 hours post-ischemia on the joksamri, Hapgok. Protein expression was investigated through BAX antibody immuno-reactive cells in the cerebral nerve cells and Western blotting. The results were as follows: In the present study as well, as a result of observation of the change in the number of the BAX reaction cells after the inducement of GI, there was the aspect of most of the BAX reaction cells being observed in the corpus striatum area of the GI group 24 hours after the inducement of ischemia. This revealed the same results as those of previous studies in which the change in the number of BAX reaction cells occurred in all areas while ischemia was in progress. The change in the expression of BAX protein after 24 hours showed that there was a very significant reduction in the NEES group compared to the GI group (p<.01). As a result, a greatest amount of change in the number of BAX immunoreactive cells related to apoptosis 24 hours after ischemia appeared in the NEES group. This study that ischemia increases the expression of BAX that induces apoptosis. Thus, it is determined that ischemia is the main cause of the apoptosis of neurons, and this study reveals that low frequency needle electrode electrical stimulation has the effect of blocking the apoptosis of neurons by reducing protein related to the apoptosis of cells that has increased after ischemia has occurred.

The Effects of Wnt Signaling on Neural Crest Lineage Segregation and Specification (Wnt signaling이 neural crest lineage segregation과 specification에 미치는 영향)

  • Song, Jin-Su;Jin, Eun-Jung
    • Journal of Life Science
    • /
    • v.19 no.10
    • /
    • pp.1346-1351
    • /
    • 2009
  • Recent evidence has shown that many pluripotetic neural crest cells are fate-restricted and that different fate-restricted crest cells emigrate from the neural tube at different times. Jin et al. (2001) identified the expression patterns of Wnts and its antagonists at the time that neural crest cells were being specified and suggested that Wnt signaling was involved in the segregation/differentiation of neural crest cells in the trunk in vitro. In this study, we evaluated the effects of Wnt signaling in avian neural crest lineage segregation. To accomplish this, Wnt signaling was disturbed at the time of neural crest segregation and differentiation by grafting Wnt-3a expressing cells and conducting dominant negative glycogen synthase kinase (dnGSK) electroporation. Stimulation of Wnt signaling induced neural crest lineage segregation and melanoblast specification, and increased the expression levels of genes known to be involved in neural crest development such as cadherin 7 and Slug, which suggests that they are involved in Wnt-induced neural crest lineage differentiation into melanoblasts.

The Effects of NEES on PARP Expression and Cell Death in Rat Cerebral Cortex After Ischemic Injury

  • Kim, Sung-Won;Lee, Jung-Sook;Um, Ki-Mai;Kim, Ji-Sung;Lee, Suk-Hee;Choi, Yoo-Rim;Kim, Nyeon-Jun;Kim, Bo-Kyoung;Cho, Mi-Suk;Park, Joo-Hyun;Kim, Soon-Hee
    • Journal of International Academy of Physical Therapy Research
    • /
    • v.1 no.2
    • /
    • pp.107-112
    • /
    • 2010
  • The majority of strokes are caused by ischemia and result in brain tissue damage, leading to problems of the central nervous system including hemiparesis, dysfunction of language and consciousness, and dysfunction of perception. The purpose of this study was to investigate the effects of Poly(ADP-ribose) polymerase(PARP) on necrosis in neuronal cells that have undergone needle electrode electrical stimulation(NEES) prior to induction of ischemia. Ischemia was induced in male SD rats(body weight 300g) by occlusion of the common carotid artery for 5 min, after which the blood was reperfused. After induction of brain ischemia, NEES was applied to Zusanli(ST 36), at 12, 24 and 48 hours. Protein expression was investigated using immuno-reactive cells, which react to PARP antibodies in cerebral nerve cells, and Western blotting. The results were as follows: In the cerebral cortex, the number of PARP reactive cells after 24 hours significantly decreased(p<.05) in the NEES group compared to the GI group. PARP expression after 24 hours significantly decreased(p<.05) in the NEES group compared to the GI group. As a result, NEES showed the greatest effect on necrosis-related PARP immuno-reactive cells 24 hours after ischemia, indicating necrosis inhibition, blocking of neural cell death, and protection of neural cells. Based on the results of this study, NEES can be an effective method of treating dysfunction and improving function of neuronal cells in brain damage caused by ischemia.

  • PDF

The Effect of Herbal Formula KH-204 on Erectile Dysfunction in Hyperlipidemic Rat (고지혈증 흰쥐에서 생약제제 KH-204의 발기부전 치료연구)

  • Lee, Eun-Jeong;Kim, Hee-Seok;Sohn, Dong-Wan;Kim, Sae-Woong;Cho, Yong-Hyun;Hwang, Sung-Wan;Hwang, Sung-Yeoun
    • Korean Journal of Pharmacognosy
    • /
    • v.38 no.1
    • /
    • pp.50-55
    • /
    • 2007
  • This study was designed to investigate the effects KH-204 on erectile dysfunction in hyperlipidemic rat. KH-204 has been evaluated antihyperlipidemic and antierectile dysfunction effects on experimental hyperlipidemic rats induced by high fat diet. After oral administration of the water extract KH-204 (50, 100, 200, 300 mg/kg) to hyperlipidemic rats for 8 weeks, the variables including body weight, total cholesterol, HDL and LDL levels in serum, the expression of eNOS and nNOS in penis were measured. And erectile function was determined by measurement of intracavernosal pressure (ICP) and maximal arterial pressure (MAP) after electrical stimulation of the cavernosal nerve. Oral administration of KH-204 significantly inhibited the increases of serum total cholesterol and LDL-cholesterol levels and the decreased of serum HDL-cholesterol levels in hyperlipidemic rats induced by high fat diet. The penile expression level of the two enzyme (eNOS, nNOS) were increased significantly after oral administration of the KH-204 50 mg/kg. Erectile function after 10 volts stimulation was significantly decreased in the hyperlipidemic rat compared with the normal rat, but increased in KH-204 group compared with hyperlipidemic group. These results suggest that KH-204 is effective for erectile dysfunction in hyperlipidemia.

A Lethal Case of Aute Zipeprol Poisoning Occurring in a Drug Addicted Old Woman (Zipeprol(레스피렌$^{(R)}$)을 탐닉하던 노인의 급성 중독 사망례)

  • Lee, Doo-Hwan;Choi, Sang-Cheon;Ahn, Jung-Hwan;Cho, Young-Shin;Kim, Gi-Woon;Min, Young-Gi;Jung, Yoon-Seok
    • Journal of The Korean Society of Clinical Toxicology
    • /
    • v.7 no.2
    • /
    • pp.172-175
    • /
    • 2009
  • Zipeprol dihydrochloride is a non-opioid mucolytic, antitussive agent and it is frequently prescribed for respiratory symptoms such as cough and sputum. The main pharmacologic mechanisms of zipeprol are inhibition of superior laryngeal nerve stimulation and direct antagonism for stimulation of the bronchial receptors, which might have an effect for the drug's mucolytic action. Many cases of drug abuse with zipeprol have occurred world-wide due to the hallucinogenic effect of the drug. In Korea, zipeprol was reported to be the most commonly abused drug among young people for the 1990s. Zipeprol associated death was first reported since 1991 and 69 cases of death related to zipeprol abuse were further reported during 8 years (between 1991 and 1998). In addition to the hallucinogenic effect, dyspnea, extrapyramidal symptoms, seizure, cerebral edema have been reported as the signs and symptoms of toxic zipeprol overdose. However, zipeprol abuse is not common for old age people and non drug abusers. We report here on a fatal case of acute zipeprol poisoning in an eighty five year old drug addicted woman.

  • PDF

Chopper Application for Magnetic Stimulation

  • Choi, Sun-Seob;Lee, Sun-Min;Kim, Jun-Hyoung;Kim, Whi-Young
    • Journal of Magnetics
    • /
    • v.15 no.4
    • /
    • pp.213-220
    • /
    • 2010
  • Since the hypothalamus immediately reacts to a nerve by processing all the information from the human body and the external stimulus being conducted, it performs a significant role in internal secretion; thus, a diverse and rapid stimulus pulse is required. By detecting Zero Detector accurately via the application of AVR on-Chip (ATMEL) using commercial electricity, chopping generates a stimulus pulse to the brain using an IGBT gate to designate a new magnetic stimulation following treatment and diagnosis. To simplify and generate a diverse range of stimuli for the brain, chopping can be used as a free magnetic stimulator. Then, commercial frequency (60Hz) is chopped precisely at the first level of the leakage transformer to deliver an appropriate stimulus pulse towards the hypothalamus when necessary. Discharge becomes stable, and the chopping frequency and duty-ratio provide variety after authorizing a high-pressure chopping voltage at the second level of the magnetic stimulator. These methods have several aims. The first is to apply a variable stimulus pulse via accurate switching frequency control by a voltaic pulse or a pulse repetition rate, according to the diagnostic purpose for a given hypothalamus. Consequently, the efficiency tends to increase. This experiment was conducted at a maximum of 210 W, a magnetic induced amplitude of 0.1~2.5 Tesla, a pulse duration of $200{\sim}350\;{\mu}s$, magnetic inducement of 5 Hz, stimulus frequency of 0.1~60 Hz, and a duration of stimulus train of 1~10 sec.

Development of an Auto Stimulus Breaker During the Electric Pulp Testing using Human Responses (전기 치수 검사 시 인체 반응을 이용한 자극 제어기의 개발)

  • 남기창;안선희;이승종;김덕원
    • Journal of the Institute of Electronics Engineers of Korea SC
    • /
    • v.41 no.6
    • /
    • pp.43-49
    • /
    • 2004
  • Electric pulp test is a method to examine the vitality of dental pulp using physical and chemical stimulation. During the pulp test, the current stimulates intradental nerve, and it makes patients painful. In this paper, we measured each activating response EMG in anterior belly of digastric muscle, voice, and finger movement during the pulp test by increasing stimulus intensity gradually. We also measured excessive stimulus time from the activating responses (EMG, voice, and finger movement) to the end of the stimulation. We measured and analyzed excessive stimulus time for each stimulus detecting method. As a result, we developed automatic stimulus breaker using the human responses to stimulus during electric pulp test. We reduced the excessive stimulus time by disconnecting the pulp tester stimulus output rapidly in 10 ms after activating human response.

Cervical and Thoracic Spinal Cord Stimulation in a Patient with Pediatric Complex Regional Pain Syndrome -A case report- (소아 복합부위통증증후군 환자에서 경부와 흉부 척수 자극술 -증례보고-)

  • Park, Jung Ju;Moon, Dong Eon;Park, Seung Jae;Choi, Jung Il;Shim, Jae Chol
    • The Korean Journal of Pain
    • /
    • v.20 no.1
    • /
    • pp.60-65
    • /
    • 2007
  • Complex Regional Pain Syndromes (CRPS) type I and type II are neuropathic pain conditions that are being increasingly recognized in children and adolescents. The special distinctive features of pediatric CRPS are the milder course, the better response to treatment and the higher recurrence rate than that of adults and the lower extremity is commonly affected. We report here on a case of pediatric CRPS that was derived from ankle trauma and long term splint application at the left ankle. The final diagnoses were CRPS type I in the right upper limb, CRPS type II in the left lower limb and unclassified neuropathy in the head, neck and precordium. The results of various treatments such as medication, physical therapy and nerve blocks, including lumbar sympathetic ganglion blocks, were not effective, so implantation of a spinal cord stimulator was performed. In order to control the pain in his left lower limb, one electrode tip was located at the 7th thoracic vertebral level and two electrode tips were located at the 7th and 2nd cervical vertebral levels for pain control in right upper limb, head, neck and right precordium. After the permanent insertion of the stimulator, the patient's pain was significantly resolved and his disabilities were restored without recurrence. The patient's pain worsened irregularly, which might have been caused by psychological stress. But the patient has been treated with medicine at our pain clinic and he is being followed up by a psychiatrist. (Korean J Pain 2007; 20: 60-65)

Roles of Non-cholinergic Intrapancreatic Nerves, Serotonergic Nerves, on Pancreatic Exocrine Secretion in the Isolated Perfused Rat Pancreas

  • Jiang, Zheng Er;Shin, Bich-Na;Kim, In-Hye;Lee, Hyun-Joo;Yong, Jun-Hwan;Lee, Min-Jae;Won, Moo-Ho;Lee, Yun-Lyul
    • The Korean Journal of Physiology and Pharmacology
    • /
    • v.15 no.5
    • /
    • pp.307-312
    • /
    • 2011
  • It has been rereported that axons which display 5-hydroxytryptamine (5-HT) immunoreactivity are abundant in the pancreas and the majority of serotonergic axons terminate within intrapancreatic ganglia, islet and acini. This histological result strongly suggests that intrapancreatic serotonergic nerves could affect to the pancreatic endocrine and exocrine secretion. Thus, this study was aimed to investigate whether intrapancreatic serotonergic nerves could affect pancreatic exocrine secretion and an action mechanism of the intrapancreatic serotonergic nerves. The rats were anesthetized with a single injection of urethane. The median line and the abdominal aorta was carefully dissected and cannulated with PE-50 tubing just above the celiac artery, and then tightly ligated just below the superior mesenteric artery. The pancreatic duct was also cannulated with Tygon microbore tubing. With the addition of serotonin, pancreatic volume flow and amylase output were significantly inhibited electrical field stimulation (EFS). On the other hand, pancreatic volume flow and amylase output were significantly elevated in EFS with the addition of spiperone. EFS application, however, pancreatic volume flow and amylase output had no significant change in cholecystokinin (CCK) alone when serotonin was applied under a 5.6 mM glucose background. Pancreatic volume flow and amylase output under 18 mM glucose background were significantly elevated in CCK plus serotonin than in CCK alone. These data suggest that intrapancreatic serotonergic nerves play an inhibitory role in pancreatic exocrine secretion and an important role in the insulin action or release.

Effects of High Voltage Pulsed Galvanic Stimulation on Skeletal Muscle in Rats (고압맥동전류 자극이 흰쥐의 탈신경근 섬유 형태에 미치는 영향)

  • Park Hwan-Jin
    • The Journal of Korean Physical Therapy
    • /
    • v.14 no.2
    • /
    • pp.145-152
    • /
    • 2002
  • This study was carried out of to determine effects of high voltage pulsed galvanic stimulation on the soleus. target muscle of the sciatic nerve, of white rat two condition. The coditions included normal, and denervated muscle. The histochemical, ultrastructural observations were made. The following results were obtains. 1. The histochemical observations found the inflammatory cells between muscle bundle and muscle fiber since 1-week control group. In addition, nucleus located in the muscle fiber was frequently observed. 2. The experimental group showed a similar phenomenom to the normal muscles in terms of glycogen granules in the 1-week group, where as fiber were not distinguishable in4-weeks group which indicated that the degenerative changes had occured. 3. The NADH-TR reaction showed that the red muscle slightly increased in the 2-weeks group, and the distinguished was impossible the red fiber 4. The ultrastructures of the muscles in both groups were severely bend, and a number of vacuoles were observed due to the destruction of mitochondria..

  • PDF