• Title/Summary/Keyword: H-REFLEX

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The Distribution of Substance P and Calcitonin Gene-Related Peptides Immunoreactive Fibers in the Rat′s Larynx (흰쥐 후두에 분포된 신경에서 Substance P 및 Calcitonin Gene-Related Peptides의 발현양상)

  • 박정수;정광윤;최종욱
    • Korean Journal of Bronchoesophagology
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    • v.2 no.1
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    • pp.97-102
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    • 1996
  • The larynx has three major functions such as protective reflex, respiration and phonation, and is richly innervated by sensory, sympathetic and parasympathetic nerves. The sensory innervation of the laryngeal mucosa, which is involved in the perception of pain, mechanical and chemical irritation, prtects the airway via various laryngeal reflexes. We studied the distribution of Substance P (SP) and Calcitonin Gene-Related Peptide (CGRP) sensory fibers in the rat's larynx using the immuno-histochemical methods. Many SP and CGRP immunoreactive fibers were found in all regions of the laryngeal mucosa except the vocal cords. SP immunoreactive fibers showed a very similar distribution to the CGRP fibers in the epithelium and submucosa. But SP immunoreactive fibers were sparser than CGRP immunoreactive fibers in distribution density. Both reactive fibers were denser in the supraglottic region than subglottic region. Especially, intraepithelial fibers displayed the densest innervation to the laryngeal surface of the epiglottis. h the subepithelium, SP and CGRP immunoreactive fibers were distributed along the wall of vessels and around the glands. The present results suggest that the regional distribution of SP and CGRP immunoreactivity may be responsible for the protective reflex function of the laryngeal inlet.

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Study on Intravenous Drip Anesthesia of Ketamine Hydrochloride in Dogs (개에 있어서 Ketamine Hydrochloride의 정맥내 점적마취에 관한 연구)

  • Kim Nam-Soo;Choi In-Hyuk
    • Journal of Veterinary Clinics
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    • v.8 no.1
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    • pp.81-91
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    • 1991
  • This study was carried out to investigate the effects of intravenous drip with ketamine hydrochloride and its application for control depth and maintenance of anesthesia in dogs. Changes of blood pressure, vital signs, blood gas and anesthetic state were observed in this study. The obtained were summerized as follows ; 1. Changes of blood pressure and heart rate after intravenous drip anesthesia with ketamine hydrochloride were observed with significant increase in all group ; group II (0.135m81k9/min), group III (0.269mg/kg/min) and group IV(0.538mg/kg/min). These conditions were maintained unchangeably until 160 minutes after administration in all group. This may be indicated that there were no side effects on account of ketamine accumulation. 2. There were irregular respiration, pain reflex, Jaw tone reflex and vomition probability in the anesthetic conditions of group II The anesthetic conditions of group III were rarely shown as mentioned above. Awakening time and recovery time of group H were more prolonged 21 minutes and 27 minutes respectively than those of group III. These experimental data suggested that the optimal dosage of intravenous drip anesthesia of ketamine Hcl was 0.269mg/kg/min.

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Changes in bispectral index score and cardiorespiratory function under constant rate infusion with alfaxalone in dogs

  • Yun, Sungho;Kwon, Young-Sam
    • Korean Journal of Veterinary Research
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    • v.56 no.3
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    • pp.133-137
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    • 2016
  • Changes in the cardiovascular and bispectral index score were evaluated in dogs subjected to constant rate infusion (CRI) with alfaxalone. Fifteen dogs were assigned to three groups of 5. Groups and doses of alfaxalone were as follows: group 1, 3 mg/kg for induction and 6 mg/kg/h for CRI; group 2, 3 mg/kg for induction and 8 mg/kg/h for CRI; and group 3, 3 mg/kg for induction and 10 mg/kg/h for CRI. CRI was maintained for 1 h. Respiratory rates and blood pressures showed minimal changes; however, mild tachycardia and mild hypoxemia occurred, especially in group 3. There were some disparities between bispectral index score, electromyography and pedal withdrawal reflex test when measuring anesthetic depth. Additional premedications and/or analgesic agents would be helpful to avoid adverse effects of alfaxalone and provide improved cardiopulmonary functions.

Electromyographic Study of Lumbosacral Radiculopathy by Lumbar Disc (요추 추간원판에 의한 요천추 선경근 병변의 근전도 연구)

  • Kim Ho-Bong;Lee Jin-Hee;Kim Jong-Youl;Bae Sung-Soo
    • The Journal of Korean Physical Therapy
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    • v.11 no.3
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    • pp.1-12
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    • 1999
  • The aim of this study is to examine the sensitivity and characteristics of electromyography abnormalities detected by using various paramenters in patients with lumbosacral radiculopathies. EMG is widely used for disgnosing and localizing the level of radiculopathy. The results of the study were as follow : 1. In electromyography, L5 radiculopathy usa 95 cases(51.690). S1 radiculopathy was $45m(24.5\%)$ L4 radiculopathy was 18cases $(9.8\%)$, and L2, 3 radiculopathy was 8cases$(4.3\%)$. Remains 18cases$(9.8\%)$ had no definite radiculopathy. 2. Peroneal and tibial motor nerve conduction velocity studies were not significant as compared to the side to side. 3. Latency of H-reflex in L5 radiculopathy was $30.55\pm2.47$ in affected side, $29.47\pm2.29$ in unaffected side, in S1 radiculopathy was $33.00\pm2.03$ in affected side, R30.18\pm2.21$ in unaffected side. It was statistically significant(p<0.01). H-reflex mean difference of S1 radiculopathy group was significantly prolonged as compared to the L5 and S1 radiculopathies(p<0.001). 4. In L2, 3 radiculopathy, abnormal spontaneous activities and motor unit action potentials were showed high sensitivity in upper lumber paraspinal, hip adductors, quadriceps and iliopsoas muscles. 5. In L4 radiculopathy, lower lumbar paraspinal, tibialis anterior, quadriceps muscles were showed high sensitivity. 6. In L5 radiculopathy, lower lumbar paraspinal, extensor hallucis longus, extensor digitorum longus, peroneus longus, extensor digitorum brevis, gluteus maximus, tensor fasciae latae muscles were showed high sensitivity. 7. In S1 radiculopathy, lower lumbar paraspinal, gluteus maximus, peroneus longus, soleus, abductor hallucis, hamstrings, extensor digitorum brevis, extensor hallucis lognus, gastrocnemius muscles were showed high sensitivity.

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Study on the Exposure Dose(mAs) and acquisition Image set up Density Display and Sensitivity of control Panel for the Digital Flat-Panel-Detector (디지털 평판형 검출기에서 Control Panel의 Density Display와 Sensitivity 설정이 조사선량(mAs)과 획득영상에 미치는 영향에 관한 연구)

  • Kim, Byung-Ki;Kim, Sang-Keun;Cha, Seon-Hwa;Choi, Jun-Gu;Lee, Jun;Kim, Min-Woo;Kim, Sun-Bae;Kim, Gyeong-Sun
    • Korean Journal of Digital Imaging in Medicine
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    • v.9 no.2
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    • pp.17-21
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    • 2007
  • The purpose to recognize change of average pixel value of acquisition image by control panel's density and right set up method of speed (sensitivity) and exposure dose(mAs) change that dose in purpose digital flatpanel-detector. X -ray generator DHF-158H2(Hitachi, Japan). Detector CXDI 4OG(Canon, Japan), 12 : 1 grid and exposure ray 135 kVp, 250 mA, 10 ms. focus-detector distance 180 cm and used AEC mode. DICOM reflex analysis program used image J that is digital reflex analysis program that offer in United States America National Health Center(National Institutes of Health : NlH) phantom used chest phantom(Anthromorphic : Flukebrome.medicaI USA). An experiment chest phantom that consist by formation equivalence material use because density value( -3${\sim}$+3) in X-ray control panel and seep that is speed step(slow, medium, fast) each control experimentalize. image analysis reflex neted through an experiment using image j each image compare. These was change in dose according to slow, medium, fast and density's change in an experiment result. According to detector sensitivity and density condition set, dose was relationship dissimilarity 500% from 200%. The dose came highest when is density +3 to slow. and dose more increases gray scale's extent could know that rise. Could know whether how equipment set is important through this experiment. cause of disease which change by digital radiography system forward is thought to increase more, it is considered that suitable education by this and continuous interest about equipment need absolutely.

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The Study on Acute.Subacute Toxicity and Anti-cancer Effect of H Herbal-acupuncture (H-약침(藥鍼)의 급성(急性).아급성(亞急性) 독성실험(毒性實驗) 및 항암효과(抗癌效果)에 관(關)한 실험적(實驗的) 연구(硏究))

  • Kim, Tae-Hui;Kwon, Ki-Rok;Lee, Seon-Goo
    • Journal of Pharmacopuncture
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    • v.5 no.2
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    • pp.120-136
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    • 2002
  • Objectives : The purpose of this study is to investigate Acute and Subacute Toxicity, and Anti-cancer Effect of H Herbal-acupuncture on mice and rats. Methods : Balb/c mice were injected intraperitoneally with H Herbal-acupuncture for $LD_{50}$ and acute toxicity test. Sprague-Dawley rats were experimented in the same way for subacute toxicity test. H Herbal-acupuncture was injected into abdomen of mice having S-180 cancer cell line. Result : 1. During the test, $LD_{50}$ could not be counted since there was no expired subjects. 2. In an acute toxicity test, the loss of motility and reflex action was observed, but weight increased in the treatment group, compared with those in the normal group (P<0.05). 3. In an acute toxicity test of serum biochemical values of mice, glucose increased in the treatment group II while total cholesterol was increased in the all treatment groups (P<0.05). 4. In a subacute toxicity test, a little loss of motility and reflex action was observed in the treatment group. Weight of mice in the treatment group decreased on the 28th day. 5. In a subacute toxicity test, liver weight was decreased but lung weight of mice increased in the all treatment groups (P<0.05). 6. As a result of measuring Complete Blood Count test (CBC) of rat, HCT was decreased in treatments even though it was not significant, compared with the normal group (P<0.05). 7. In a serum biochemical value test of subacute toxicity, total protein and albumin decreased in the all treatment groups. Creatinine, glucose, GOT increased in the treatment group I compared with the control group. Alkaline phos-phatase decreased in treatment II group, compared with the control group (P<0.05). 8. Median survival time that was measured in the rats treated with sarcoma-180 cancer cell Median decreased in the treatment group, compared with the control group (P<0.05). 9. Natural killer cell activity showed significant reduction at 100:1 and 10:1 E/T ratio while it increased at 50:1 E/T ratio. It is inferred that there was an error in the experiment (P<0.05). 10. In an interleukin-2 productivity test, even though it decreased in lung cancer, and increased in abdomen cancer, but it was only a small difference (P<0.005). 11. After injecting B16F10 cell into a capillary vessel of C57BL/6 mice and generating metastasized lung cancer, the lung was examined with the naked eye. It was not possible to see metastasized cancer in the all groups on the seventh day but the cancer was viewed on the fourteenth day. The number and volume of metastasized cancer in the treatment group enlarged in the treatment group, compared with the control group. Conclusion : According to the results, H herbal-acupuncture took no effects in cancer.

Helicobacter pylori in the Oral Cavity (구강 내 Helicobacter pylori)

  • Ahn, Jong-Mo
    • Journal of Oral Medicine and Pain
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    • v.37 no.2
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    • pp.75-79
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    • 2012
  • Helicobacter pylori(H. pylori) associated with gastritis and gastric cancer is mainly detected dental plaque and saliva in the oral cavity. Most infection is probably acquired in childhood, but the route of transmission is not clear. The oral cavity has been indicated as secondary reservoir of H. pylori, and may therefore be argued in the route of transmission and reinfection of the stomach which follows treatment of H. pylori infection. So this review aimed to discuss about H. pylori in the oral cavity. H. pylori in stomach can appear in the oral cavity by gastroesophageal reflex or vomiting, but infection of stomach and oral cavity is different. Diagnostic methods are serological method, urea breath test, PCR method, urease test, histologic method and so on. Nested PCR recommend for detection of H. pylori in saliva and dental plaque. H. pylori infection in the oral cavity appear variously and is no relation with dental diseases. The antimicrobial mouthrinse recommend in patients with periodontal diseases because of high detection rate fo H. pylori. Thus H. pylori may be considered as the normal oral microflora.

Clinical importance of F-waves as a prognostic factor in Guillain-Barré syndrome in children

  • Lee, Eung-Bin;Lee, Yun Young;Lee, Jae Min;Son, Su Min;Hwang, Su-Kyeong;Kwon, Soonhak;Kim, Sae Yoon
    • Clinical and Experimental Pediatrics
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    • v.59 no.6
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    • pp.271-275
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    • 2016
  • Purpose: A limited number of studies have examined the link between F-wave abnormalities and clinical presentation in pediatric Guillain-$Barr{\acute{e}}$ syndrome (GBS). Therefore, this study examined the importance of F-wave abnormalities as a prognostic factor in pediatric GBS patients. Methods: The records and electrodiagnostic studies (EDS) of 70 GBS patients were retrospectively evaluated, and divided into 2 groups according to the results of EDS. Group A (n=33) presented with F-wave abnormalities, and group B (n=26) exhibited normal findings. We compared laboratory reports, clinical features, response to treatment, and prognosis between the 2 groups. Results: Motor weakness was the most frequently observed symptom for either group. Clinically, the incidence of fever and upper respiratory symptoms differed between the 2 groups, while the prevalence of abnormal deep tendon reflex (DTR) was significantly higher in group A than B (P<0.05). Patients diagnosed with GBS had received intravenous immunoglobulin treatment: 94% in group A and 58% in group B. Furthermore, significantly greater numbers of patients in group A showed H-reflex abnormalities and poor prognosis compared with group B (P<0.05). Conclusion: This study demonstrated that F-waves are a clinically important prognostic factor in GBS. F-wave abnormalities were associated with abnormal DTR and poor prognosis in patients. Limited studies have examined the link between F-wave abnormalities and clinical results; therefore, further randomized controlled studies are needed to confirm the clinical characteristics and efficacy of treatments.

Xylazine-induced depression and its antagonism by α-adrenergic blocking agents (Xylazine의 진정효과와 α-adrenergic 수용체 봉쇄약물의 길항효과)

  • Kim, Chung-hui;Hah, Dae-sik;Kim, Yang-mi;Kim, Jong-shu
    • Korean Journal of Veterinary Research
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    • v.33 no.1
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    • pp.71-80
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    • 1993
  • The central nervous system depressant effect of xylazine and xylazine-ketamine was studied in chicken and mice. Intraperitoneal injection of xylazine(1~30 mg/kg) and xylazine(1~30 mg/kg)-ketamine(100 mg/kg) induced a loss of the righting reflex in chicken and mice, respectively. These effects of xylazine were dose-dependent. The results obtained were as follows; 1. The effect of xylazine-induced depression was antagonized by adrenergic antagonists having ${\alpha}_2$-blocking activity(yohimbine, tolazoline, piperoxan and phentolamine). 2. Yohimbine was most effective in the reduction of the CNS depression by xylazine. 3. Phenoxybenzamine and prazosin did not reduced CNS depression by xylazine in both species. 4. Labetalol (${\alpha}_1$, ${\beta}_1$-adrenergic antagonist) and propranolol(${\beta}$-adrenergic blocking agent) were not effective in reducing xylazine induced depression. 5. Cholinergic blocking agents (atropine and mecamylamine), a dopaminergic antagonist (Haloperidol), a histamine $H_1$-antagonist(chlorpheniramine), a histamine $H_2$-antagonist(cimetidine), a serotonergic-histamine $H_1$ antagonist(cyproheptadine) were not effective in reducing xylazine-induced depression. 6. Xylazine-induced depression is mediated by ${\alpha}_2$-adrenergic receptors and appears not to be involved in cholinergic, dopaminergic, serotonergic or histaminergic pathways.

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Spinal Motor Neuron and Electroencephalogram Changes after Different Kinesio Taping Method Therapy in normal People (키네시오 테이핑 적용 방식이 정상인의 척수운동신경원 흥분성과 뇌파 변화에 미치는 영향)

  • Bae, Sea-Hyun;Kim, Gi-Do;Kim, Kyung-Yoon
    • The Journal of the Korea Contents Association
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    • v.13 no.11
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    • pp.791-799
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    • 2013
  • This study to evaluate the spinal motor neuron and electroencephalogram effects of applying different kinesio taping method therapy in normal people. The study was performed on 16 healthy adults. We divide two group; group I(n=8); Tape along muscle, group II(n=8); Tape across muscle. Two different method taping were applied to gastrocnemius in two weeks. Spinal motor neuron measurement to evoke H-reflex, the posterior tibial nerve was stimulated. Electroencephalogram measurement for ${\beta}$-SMR, attached to active electrode C3, Cz, C4. The H-reflex, ${\beta}$-SMR results were measured before, immediately, one week later and two week later after the apply taping. The results of this study, spinal motor neuron change of group I were decreased ${\alpha}$-motor neuron and the duration time longer than group II(p<.05). Electroencephalogram change of group I were increased ${\beta}$-SMR and the duration time longer than group II(p<.05). Thus, we knew the taping along muscle was ${\beta}$-SMR brain wave more active and reduces the activity of spinal motor neuron.