Frey syndrome is a disease characterized by abnormal sweating, facial redness, and rare pain by stimulation of taste sense on the limited area dominated by the auriculotemporal nerve and great auricular nerve. Although the developmental mechanism and histopathologic cause of Frey syndrome are still being debated, the most reliable theory is based on injury of the parathympathetic nerve connected to the auriculotemporal nerve continuing to abnormal regeneration. The other theory is that the sweat glands develop an increased sensitivity after degeneration of sympathetic fibers. Therapy of Frey syndrome includes drugs, radiographic treatment, and surgical treatment; however, in most cases, treatment is not satisfactory. This is a case report on a 24-year-old male patient with Frey syndrome caused by the fracture reduction with retromandibular approach after multiple facial traumas and spontaneous healing without any special treatment.
Although the existence of nerve cells which determine the activity of sympathetic nervous system in ventrolateral medulla is advocated recently, there are wide varieties on the location and function of them according to authors. Present study aimed to identify and characterize the medullospinal tract cells in rostral and caudal medulla of cats .which branch to the lateral horn of the upper thoracic spinal cord. Cats were anesthetized with ${\alpha}-chloralose$. The upper thoracic spinal cord and floor of the IVth ventricle were exposed. Medullospinal tract cells in rostral and caudal medulla were identified by anti-dromic stimulation of the intermediolateral nucleus in the upper thoracic cord and then the location and physiological characteristics of these cells were studied. A total of seventy cells in medulla had constant latency and responded to high frequency stimulation to thoracic cord. Among them fifty-six cells were identified as medullospinal tract cells either by collision with spontaneous activities or activities evoked by sciatic nerve stimulation(27/56), or by determining the refractory period (29/56). Thirty-one of these cells branched to the contralateral thoracic spinal cord, twenty-one cells to the ipsilateral side and remaining four cells branched to both sides. The conduction velocity of cells branching to the contralateral side was $29{\pm}2.9\;m/sec$ and that of cells to the ipsilateral side was $39.1{\pm}6.0\;m/sec$. When medulla was devided into two by a horizontal plane at 3 mm rostral to the obex, fifty-one among seventy cells were in the rostral medulla and nineteen were in the caudal medulla. The conduction velocities of these two groups were $21.6{\pm}1.0\;and\;33.3{\pm}3.9\;m/sec$, respectively. In this study, we confirmed the existence of two groups of medullospinal tract cells in rostral and caudal ventrolateral medulla, which branch to the lateral horn of thoracic cord and these cells have relatively few spontaneous activities and rapid conduction velocity, so we concluded that these cells are different from the previously known sympatho-related cells in ventrolateral medulla.
Min, Hyoung Ki;Han, Kyung Ream;Lee, Sang Eun;Kim, Kyoung Tae;Kim, Chan
The Korean Journal of Pain
/
v.19
no.2
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pp.223-227
/
2006
Complex regional pain syndrome (CRPS) is clinically characterized by pain, abnormal regulation of blood flow and sweating, edema of skin and subcutaneous tissues, sensory and motor disturbances, and trophic changes of the skin. A 21-year-old man was suffering from pain and swelling in his right hand and forearm. His arm had been in splints for 3 weeks following an extension injury of the right fingers and wrist, with the pain having developed 2 weeks after the splinting. He was treated with various nerve blocks including continuous epidural infusion, thoracic sympathetic block and peripheral nerve blocks, and squeezing his edematous region under general anesthesia as well as intravenous lidocaine and ketamine infusions. However, all of the performed treatments had no effect on the patient's pain or hand swelling. As a next line therapy, spinal cord stimulation should be considered because of intractable severe pain and swelling to almost all other modalities of therapy. We therefore performed an early intervention of spinal cord stimulation for the patient with refractory CRPS type I 5 months after the onset of pain and have got an excellent result.
Park, Ji-won;Jeong, Myung-In;Jeong, Wu-Jin;Hong, Hae-Won;Koo, Ji-eun;Choi, Sung-won;Kyung, Da-hyun
Journal of Acupuncture Research
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v.39
no.3
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pp.234-238
/
2022
A 53-year-old male who had received surgery on his right ankle joint 10 years previously was diagnosed with Complex Regional Pain Syndrome the following year. Despite various treatments (sympathetic nerve-block medication, pain relievers, corticosteroids, nerve blocks, and transcutaneous electrical nerve stimulation) over the years there was no improvement in his symptoms. Recently the patient was admitted to a Korean medicine hospital where he received treatment (acupuncture, pharmacopuncture, and herbal treatment) and his symptoms gradually showed improvement. The patient was concurrently on psychiatric medicine, antihistamine medication, and opioids for pain (when necessary). A decrease in numeric rating scale, Oswestry disability index scores, and an increase in the Korean version of the 5-level EuroQol-5 dimension score showed symptom improvement within 36 days. This study suggests complex Korean medicine treatment for Complex Regional Pain Syndrome may result in a reduction in pain and improved quality of life.
Lee Kang-Uk;Yun Yeo-Chung;Kim Jeong-Sang;Na Chang-Su
Korean Journal of Acupuncture
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v.19
no.2
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pp.41-49
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2002
Objectives : The aim of the present study is to observe effects of acupuncture related with the nerve system, Inferior mesenteric nerve activity(IMNA) was examined on BL60 acupuncture closely connected with the bladder and HT8 with little tied. Materials and methods : Acupunctures were performed during 100 seconds after stabilization. IMNA was measured by micromanipulator, preamplifier, mean arterial pressure(MAP) and heart rate were observed by blood pressure transducer, 4-channel transducer amplifier in anesthetized rat. Results : On BL60 acupuncture, the heart rate was not significantly decreased but IMNA, MAP were significantly decreased and Maximum peak of IMNA was increased during inserted acupuncture, decreased after ejected acupuncture respectively. On HT8 acupuncture, IMNA was decreased during acupuncture than before acupuncture but the others did not showed signigicant difference. Conclusions : Our results demonstrated a meridian interaction between BL60 acupoint in the bladder channel and Inferior mesenteric sympathetic nerve related to the bladder. This fact suggest that BL60 acupuncture have effect on the bladder through the nerve system. Meanwhile, IMNA was decreased during HT8 acupuncture. This result is supposed HT8 to have not meridian function but acupoint function by another mechanism. It needs to be closely examined other meridians and nerve by the optimal approaching method.
Kim, Young-Hwan;Ahn, Duck-Sun;Joeng, Ji-Hyun;Chung, Seungsoo
The Korean Journal of Physiology and Pharmacology
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v.18
no.6
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pp.489-495
/
2014
Protease-activated receptor (PAR)-2 is expressed in endothelial cells and vascular smooth muscle cells. It plays a crucial role in regulating blood pressure via the modulation of peripheral vascular tone. Although some reports have suggested involvement of a neurogenic mechanism in PAR-2-induced hypotension, the accurate mechanism remains to be elucidated. To examine this possibility, we investigated the effect of PAR-2 activation on smooth muscle contraction evoked by electrical field stimulation (EFS) in the superior mesenteric artery. In the present study, PAR-2 agonists suppressed neurogenic contractions evoked by EFS in endothelium-denuded superior mesenteric arterial strips but did not affect contraction elicited by the external application of noradrenaline (NA). However, thrombin, a potent PAR-1 agonist, had no effect on EFS-evoked contraction. Additionally, ${\omega}$-conotoxin GVIA (CgTx), a selective N-type $Ca^{2+}$ channel ($I_{Ca-N}$) blocker, significantly inhibited EFS-evoked contraction, and this blockade almost completely occluded the suppression of EFS-evoked contraction by PAR-2 agonists. Finally, PAR-2 agonists suppressed the EFS-evoked overflow of NA in endothelium-denuded rat superior mesenteric arterial strips and this suppression was nearly completely occluded by ${\omega}$-CgTx. These results suggest that activation of PAR-2 may suppress peripheral sympathetic outflow by modulating activity of $I_{Ca-N}$ which are located in peripheral sympathetic nerve terminals, which results in PAR-2-induced hypotension.
Proceedings of the Korean Society for Emotion and Sensibility Conference
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1999.03a
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pp.237-242
/
1999
The nature of the interactions between the vestibular and autonomic systems is complex and has not been fully defined. Vestibuloocular reflex induced by sinusoidal rotation and activity of the autonomic nerves in the heart were measured to investigate the interactions between the vestibular system and the autonomic nervous system in healthy adults. Eye movement induced by sinusoidal rotation of the whole body or optokinetic stimulation at 0.04 Hz was analyzed in gain, phase, and symmetry. EKG was measured during vestibular stimulation and analyzed in heart rate variability including mean R-R interval, standard deviation (SD) and coefficient of variance (CV) of R-R interval, and power spectrum of low frequency region (LF) and high frequency region (HF). Gain of eye movement was 0.65${\pm}$0.03 by ratatory stimulation, 0.70${\pm}$0.02 in optokinetic stimulation, 0.08${\pm}$0.02 in visual suppression, and 0.84${\pm}$0.04 in visual enhancement. In R-R interval, resting condition (control) was 0.82${\pm}$0.03 sec, and visual suppression showed significant increase and visual enhancement did significant decrease compared with control (p<0.01).CV was 0.06${\pm}$0.02 in control and visual enhancement increased significantly (p<0.05). In LF/HF control was 1.40${\pm}$0.23, which was not different from rotatory or optokinetic stimulation. But visual suppression decreased LF/HF significantly and visual enhancement increased significantly compared with control (p<0.01). These results suggest that degree of gain corresponds with LF/HF and increased gain in visual enhancement is deeply related to the activity of sympathetic nerves.
Neuropathic pain is caused by functional abnonnalities of structural lesions in the peripheral or central nervous system, and occurs without peripheral nociceptor stimulation. Trigeminal neuropathy always pose differential location difficulties as multiple diseases are capablc of producing them: they can be the result of traumatism, tumors, or diseases of the connective tissue, infectious or demyelinating diseases, or may be of idiopathic origin. There are a number of mechanisms described as causing neuropathy. They can be described as ectopic nerve activity, neuroma, ephatic trasmission, change of sodium channel expression, sympathetic activity, central sensitization, and alteration in central inhibition systems. More than I mechanism may be active to create individual clinical presentations. In order to provide better pain control, the mechanism-based approach in treating neuropathic pain should be familiar to physicians.
Journal of the Korean Society of Food Science and Nutrition
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v.14
no.3
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pp.253-258
/
1985
It was aimed to elucidate the underlying mechanism which is elevated the systemic arterial blood pressure by cadmium(Cd). By using the isolated vas deferens and tail artery from Cd-poisoned rats, it was undertaken to see whether the ${\alpha}-adrenoceptor$ activity and prostaglandins action on the twitch response to electrical stimulation were altered. It was discussed in relation with sympathetic nerve activity. The response to electrical stimulation in vas deferens from Cd-poisoned rats was much enhanced, and frequency 50(Freq.50) was significantly lowered, comparing to control. However, the response of rat tail artery was attenuated by Cd. Inhibitory action of clonidine on the twitch response of vas deferens to electrical stimulation was decreased by Cd-poisoning. However, the increase in response in the presence of methoxamine was not affected. The inhibitory action of prostaglandin $E_2$ on the twitch response in the vas deferens but not in the tail artery was abolished or rather inverted by Cd-poisoning. In the tail artery from Cd-poisoned rats, the maximum contraction to methoxamine or clonidine was significantly decreased, however, $ED_{50}$ of both agonists was not changed. These results suggest that in vas deferens the autoreceptor of presynaptic membrane is inhibited by Cd-poisoning, by which mechanism the sympathetic activity is being enhanced and this alteration may be causally related to the elevation of arterial pressure.
Choi Gi Soon;Oh Sang Deog;Han Jae Bok;Lee Gi Seog;Park Joan Ha;Bae Hyun Su;Jung Sung Ki;Ahn Hyun Jong;Cho Young Wuk;Min Byung Il
Journal of Physiology & Pathology in Korean Medicine
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v.16
no.2
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pp.233-238
/
2002
Moxibustion is one of major healing technique in oriental medicine. It has been widely used in many diseases such as rheumatoid arthritis, Hashimoto disease, breech presentation, etc. However, till now, effects of moxibustion on NK cell activity and relations between sympathetic nerve system(SNS) and the immune alteration induced by moxibustion were not well studied. This study was designed to evaluate effects of moxibustion on NK cell activity and the intervention of SNS in the alteration of NK cell activity induced by moxibustion. Splenic NK cytotoxity was measured in a standard 4-h 51Cr release assay. We measured the NK cytotoxity at after moxibustion stimulation for 1,3,5, and 7 days, and also measured the NK cell cytotoxity after 3 and 7 days burn stimulation with similar temperature. IL-2, IL-4, INF-γ in serum were measured by rat IL-2, IL-4, INF-γ ELISA TEST KIT. To evaluate the effects of sympathectomy on alteration of NK cell cytotoxity, 6-hydroxydopamine(6-OHDA : 5Omg/kg) was used. We showed that NK cell activity of moxibustion stimulation group increased at the 3rd day, and declined at 7th day in comparison with that of contol group. In moxibustion stimulation group, NK cell activity of 3 day stimulation group was significantly higher than sham group. On the contrary, in burn stimulation group, NK cell activity was significantly higher than that of sham groups at 3rd, 7th days. Patterns between moxibustion and burns were different. INF- γ level of 3 days moxibustion stimulation group significantly higher than sham group. IL 2 level among groups were not different. IL-4 was not detected in serum with this method. Sympathectomy abolished the NK cell activity alteration induced by moxibustion. The results suggest that moxibustion induces the alteration of NK cell activity, along with INF-γ and SNS is related to these effects.
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