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Antinociceptive Effect of the Intrathecal Phosphodiesterase Inhibitor, Zaprinast, in a Rat Formalin Test

  • Heo, Burn Young;Kim, Chang Mo;Jeong, Sung Tae;Kim, Seok Jai;Choi, Jeong II;Yoon, Myung Ha
    • The Korean Journal of Pain
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    • v.18 no.2
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    • pp.99-106
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    • 2005
  • Background: Cyclic guanosine monophosphate (cGMP) and opioid receptors are involved in the modulation of nociception. Although the opioid receptors agonists are active in pain, the effect of an phospodiesterase inhibitor (zaprinast) for increasing the level of cGMP has not been thoroughly investigated at the spinal level. This study examined the effects of intrathecal zaprinast and morphine in a nociceptive test and we also examined the nature of the pharmacological interaction after the coadministration of zaprinast with morphine. The role of the nitric oxide (NO)-cGMP-potassium channel pathway on the effect of zaprinast was further clarified. Methods: Catheters were inserted into the intrathecal space of male SD rats. For the induction of pain, $50{\mu}l$ of 5% formalin solution was applied to the hindpaw. Isobolographic analysis was used for the evaluation of the drug interaction between zaprinast and morphine. Furthermore, NO synthase inhibitor ($_L-NMMA$), guanylyl cyclase inhibitor (ODQ) or a potassium channel blocker (glibenclamide) were intrathecally administered to verify the involvement of the NO-cGMP- potassium channel pathway on the antinociception effect of zaprinast. Results: Both zaprinast and morphine produced an antinociceptive effect during phase 1 and phase 2 in the formalin test. Isobolographic analysis revealed a synergistic interaction after the intrathecal administration of the zaprinast-morphine mixture in both phases. Intrathecal $_L-NMMA$, ODQ and glibenclamide did not reverse the antinociception of zaprinast in either phase. Conclusions: These results suggest that zaprinast, morphine and the mixture of the two drugs are effective against acute pain and they facilitated pain state at the spinal level. Thus, the spinal combination of zaprinast with morphine may be useful for the management of pain. However, the NO-sensitive cGMP-potassium channel pathway did not contribute to the antinocieptive mechanism of zaprinast in the spinal cord.

Literatural Study on Physiological Function of Nose (비(鼻)의 생리기능(生理機能)에 대한 연구(硏究))

  • Heo, Jun-Young;Kang, Jung-Soo
    • Journal of Haehwa Medicine
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    • v.9 no.1
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    • pp.121-134
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    • 2000
  • The following results obtained through studies related on nose. 1. Nose is called mingtang(明堂) mianwang(面王), as it emphasize the meaning of viewing diagnosis(望診) and is called yuanpinzhimen(元牝之門), tianpinzhimen(天牝之門), qiqizhimen(七氣之門) as it emphasize the meaning of the entrance of atmosphere flow. Because it's position is the middle of face, we call tianzhongzhiyue(天中之嶽), zhongyue(中嶽). 2. As the organ of body, nose comes under the category of lung-iron(肺金), functionally comes under the category of heart-fire(心火). Functionally we can smell oder, organically nose is the pathway of respiration and to be resonator. 3. Wuzangliufu(五臟六腑) is arranged closely around the nose. The essence of wuzangliufu(五臟六腑) reflect nose, so nose becomes the standard of coloring diagnosis(色診). 4. We call nose is feihou(肺候), but it is not connected directly between the lung channel and nose. In case of lung symptom(肺證), first of all, nose become to appear the condition of lung, the lung channel and nose is close functionally. 5. The view of channels, nose is a connection with channels of yangming(陽明), bladder(膀胱), du(督脈) directly. By the connecting of each three channels, spleen stomach heart and kidney(脾胃心腎) are connected with indirectly. As the result of the relation, nose helps for body to breathe and to circulate qi(氣) and smell. And so the nature of wuzangliufu(五臟六腑) appear to the nose. 6. Particularly, the yangming channel(陽明經), and the bladder channel(膀胱經) are important. Because air-qi(天氣) reach to kidney lung through nose, ground-qi(地氣) reach to spleen stomach through mouth and yingwei(營衛) revolve through the bladder channel(膀胱經). As the result nose becomes the essential organ of circulation of yinewei(營衛), ascent and descent of qi(氣).

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The Pathologic study on 『Wenbingtiaobian』 (『온병조변』의 병리학적 고찰)

  • Park, Mi Sun;Kim, Yeong Mok
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.31 no.1
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    • pp.8-19
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    • 2017
  • This study on "Wenbingtiaobian" covers identifying pattern of prescription, understanding system of multiple syndrome differentiations, characteristics of treatment and medicinal substances. The source books are "Korean translation of Wenbingtiaobian", "Modern Shanghanlun", "Jinkuiyaolueyishi", "Chinese Medicine Formulas". "Wenbingtiaobian" has system of multiple patterns including three energizer syndrome differentiation, classification of disease, six meridian syndrome differentiation and wei-qi-ying-xue syndrome differentiation. That describes cause, location, nature, power and transmutation of disease. Wei-qi-ying-xue pattern is meaningful to warm-heat disease and three energizer pattern is relevant to dampness-heat disease. The warm disease shows mostly yang brightness bowel syndrome and patterns of three yin viscera. In aspect of the heat disease, qi aspect pattern makes up the largest number of syndrome differentiation and have sometimes with bowel excess or fluid deficiency. And treatment for wei aspect pattern is primarily 'outthrust the pathogen with pungent-cool'. Deficiency cold pattern and cold pattern with dampness occupy most of cold patterns. And many dampness patterns are dampness-heat pattern in middle energizer and 'inhibited lung qi transforming' is major mechanism. Patterns with fluid deficiency in qi aspect syndrome appear mostly in upper or middle energizer and in xue aspect syndrome appear mostly in lower energizer and they form 20% of all syndrome differentiations. The treatment of clearing heat uses pungent-cool(cold) for upper energizer, sweet-cold for middle energizer, sweet(salty)-cold for lower energizer. The treatment of tonifying yin uses mostly salty-cold for middle or lower energizer. The treatment of outthrusting pathogen is applied to all the wei-qi-ying-xue aspect combined with other treatments by using pungent-cool(cold) and light herbs. Understanding diseases in the respect of syndrome differentiation can enhance understanding of modern diseases from a perspective of Korean Traditional Medicinal(KTM) and can make clinical application of KTM treatments easy. Data from this study are expected to be basic for standardization and systemization of KTM.

A Study on Yang-Saeng in Cho, Tak's Yi-Yang-Pyun (조탁(曺倬)의 이양편(二養編)에 나타난 양생사상(養生思想) 연구)

  • Lim Byung-Mook;Soh Kyung-Sun;Kim Kwang-Ho
    • Journal of Society of Preventive Korean Medicine
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    • v.1 no.1
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    • pp.1-13
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    • 1997
  • Cho, Tak(曺倬)'s Yi-Yang-Pyun(二養編), first published in the 12 year of Kwang-Hae-Kun(光海君) era(1620), is composed of two parts. The first part is an edition of various Confucian scriptures that is used to control and restrain the mind. The second pan, considering mostly of contents borrowed from medical works, anthologies and books on yang-saeng(養生), is used to maintain the well-being of the body. Yi-Yang-Pyun shows several distinct characteristics of Yang-saeng ideas. first, it follows the teachings of Yi, Hwang(李滉) which denotes the state of body and mind according to the Kyung(敬) philosophy. 'Kyung' is a state of being that does not require bondage as it automatically reveres the mind. Therefore, actively fostering the body and mind is to maintain this respective state of being. Second, it has summarized and arranged certain medical contents from the Dong-Eui-Bo-Kam(東醫寶鑑) for the purpose of discovering the truth underlying one's body in an effort to pursue the logics of universal nature. Third, although it was based on the contents of Confucianism related books, it widely encompassed the regimen of Taoism. Fundamentally, the Confucian had regarded the Taoism as a heretic, but accepted it in e influence of Zhu xi(朱熹) who interpretated Can-Tong-Qi(參同契) with Confucian perspectives and put in practice the regimen of Taoism. In this context, Yi-Yang-Pyun also used jointly Taoism-related books with Confucian scriptures. Although Taoist regimen was accepted, elixir(外丹), conjury of Taoist hermit(神仙方術) and issues which run counter to morality like sexual practices(房中術) were not. Most of regimens used were related to disease-prevention and health-enhancement like breathing(服氣法), gym-nastics(導引), Diet(服餌) etc. Ideas of Yi-Yang-Pyun, written from Confucian perspectives, latter heavily influenced on scholars of inner elixir(內丹).

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Wooden Foreign Body in the Parotid Gland (이하선 목재 이물)

  • Moon, Yoo Jin;Choi, Hwan Jun;Kim, Mi Sun;Choi, Chang Yong;Park, Jin Gue;Kim, Jun Hyuk
    • Archives of Plastic Surgery
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    • v.35 no.2
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    • pp.201-204
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    • 2008
  • Purpose: Now the CT scanner and PACS program proved to be an excellent instrument for detection and localization of most facial foreign bodies above certain minimum levels of detectability. The severity of injury in penetrating trauma on the face is often underestimated in physical examination. Wood, with its porous consistency and organic nature, provides a good medium for microbial agents. This is a report of our recent experience with wooden foreign bodies in the parotid gland imaged with CT. Methods: A 9-year-old boy was referred for evaluation of possible retained foreign body within his face. One day earlier, he had fallen, face down approximately 1 miter onto ground. He had subsequently undergone an exploration of his right parotido-masseteric area at an outside hospital with repair of a right facial laceration. Enhanced 2 mm axial and coronal CT scans were obtained through the face. Axial and coronal CT images were obtained with a General Electric(Milwaukee, Wis) 9800 CT scanner at 130 kV, 90 mA, with a 2 mm section thickness. Results: We finally decided the linear "gas" attenuation was a foreign body because of its linear configuration, which did not conform to that of an anatomic structure, and on the basis of articles that described a wood foreign body in the orbit as having the appearance of air. We found that wood was hypoattenuating($-464{\pm}27HU$). Conclusion: We recommend this type of software program for CT scanning for any patient with an injury on the face in which a foreign body is suspected.

Reconstruction of Fingertip Amputation by Using Digital Artery Perforator Flap (수부동맥 관통 피판을 이용한 손가락끝 절단의 재건)

  • Ha, Young In;Jung, Sung Gyun;Shin, Ho Seong;Park, Eun Soo;Park, Jang Woo;Choi, Hwan Jun
    • Archives of Plastic Surgery
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    • v.35 no.4
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    • pp.483-486
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    • 2008
  • Purpose: Fingertip injuries are the most common hand injuries and may lead to significant disability. Knowledge of fingertip anatomy is mandatory to treat these injuries effectively. All surgical techniques used for coverage of fingertip injuries must be based on the nature of the injury and the patient's age. Many authors have studied the method of fingertip reconstruction because goals of these treatments should include maintaining length, sensibility, motions, and appearance. The purpose of this study is to evaluate the effect of digital artery perforator flap for fingertip reconstruction without aesthetic and functional problems. Methods: From November 2006 to March 2007, the authors performed fingertip reconstruction on 3 fingers of 3 patients, aged between 41 to 54 years (average age, 47 years) using digital artery perforator flap. Results: All fingers recovered successfully and there were no necrosis of the flap. We followed up 3 cases more than 5 months. Light touch and temperature sensation could be detected in all flaps and the static two-point discrimination test was 8 mm. Conclusion: This flap is an alternative choice for coverage of fingertip defects. This method also takes short time to procedure and to recovery. The digital artery perforator flap has never been reported in Korea, however it is considered as a useful method for treatment of fingertip injury.

Surgical Outcome of Spinal Cord Hemangioblastomas

  • Park, Chang Hyun;Lee, Chang-Hyun;Hyun, Seung Jae;Jahng, Tae-Ahn;Kim, Hyun-Jib;Kim, Ki-Jeong
    • Journal of Korean Neurosurgical Society
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    • v.52 no.3
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    • pp.221-227
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    • 2012
  • Objective : Spinal cord hemangioblastomas are rare tumors. Despite their benign, slow-growing nature, they can cause severe neurological consequences. The purpose of this study was to evaluate variable factors, including clinical features, tumor findings, the extent of resection, and its recurrence or progression, which determine postoperative functional outcomes. Methods : This study included sixteen patients at our institute who underwent microsurgical resection for sporadic spinal intramedullary hemangioblastomas and spinal intramedullary hemangioblastomas associated with von Hippel-Lindau (VHL) disease, between June 2003 and March 2012. Results : A total of 30 operations were performed. Total resection (TR) of the tumor was achieved in 10 patients, and subtotal resection (STR) was achieved in 6. Postoperatively, the initial presenting symptoms were improved in 18.7% of the patients and were unchanged in 56.3%, but 25% were worse. Stable postoperative neurological functions were found in 83% of patients with preoperative McCormick grade I, and TR was achieved in 75% of these patients. In the STR group, poorer neurological status was observed in one patient, despite multiple operations. There were no poorer outcomes in the four cases of VHL disease. Various factors were analyzed, but only a correlation between the pre- and postoperative neurological status was verified in the TR-group patients. Conclusion : Preoperative focal neurological impairment and meticulous microsurgical manipulation may be predictors of favorable outcomes for solitary hemangioblastomas. In addition, the preservation of function is more important than the extent of resection in VHL disease.

Results of Anxiety Disorder Screening Programat the 2013 Mental Health Exposition in Seoul (2013년 정신건강박람회 불안 장애 선별검사 결과)

  • Choi, Kangrok;Kim, Daeho;Seo, Ho Jun;Huh, Hyu Jung;Lee, Dong-Woo;Chae, Jeong Ho
    • Anxiety and mood
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    • v.9 no.2
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    • pp.147-153
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    • 2013
  • Objective : Despite the chronic nature and high social costs, individuals with anxiety disorders seldom seek treatment. Thus, education for public awareness and screening for the illness is tremendously important for mental health professionals. This study summaries and presents the results from Anxiety Disorder Screening Program during the Mental Health Exposition held in Seoul in April, 2013. Methods : We analyzed the data from 116 participants who agreed and completed the screening questionnaires during their visits to two-day Anxiety Disorder Screening Program prepared by the Korean Academy of Anxiety Disorder. The questionnaire comprised of modified Mobility inventory for agoraphobia, Contents of worries, Penn State Worry Questionnaire, Life Events Checklist, and Abbreviated Posttraumatic Stress Disorder Checklist. Results : Participants demonstrated high rates of anxiety symptoms and possible anxiety disorders. Experience of panic attack was reported by 45%, lifetime and 16% in the past month by respondents. Phobia was reported by 46%. Participants had an average of 3.3 pathological worries and among those, social or interpersonal content was most common (46%). At least one lifetime traumatic event was reported by 64%. By the cut-off scores in the literature, 46% had possible generalized anxiety disorder and 58% possible posttraumatic stress disorder. Conclusion : Our results suggested that many visitors to Anxiety Disorder Screening Program were in fact treatment seeking after experiencing some forms of anxiety symptoms. Further efforts for delivery of medical information and increasing public awareness for anxiety disorders are needed.

An Epidemiological Study on Traffic Accidents (교통사고(交通事故)에 대(對)한 역학적(疫學的) 고찰(考察))

  • Park, Dong-Chul;Lew, Dong-Joon
    • Journal of Preventive Medicine and Public Health
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    • v.17 no.1
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    • pp.75-83
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    • 1984
  • A retrospective study has been made of 170,026 cases of motor vehicle accidents which had been reported to the National Police Headquarters of Republic of Korea, 1983. Also a study has been made of 264 cases of road traffic casualties who were treated at the Eul-ji General Hospital from Jan. 1, 1983 to Dec. 31, 1983. This study was conducted to find out the nature and pattern of the traffic accidents from the clinical and epidemiological view points. In additions, the modes of injury from the road accidents were persued which might help to reduce the traffic accident rate. The results of the study were summarized as follows; 1. In this study, the highest incidence was in the age group between $21{\sim}30$ years (21.29%). And the age group of highest death rate was under 10 years (7.28%). 2. In the comparison of sexual differences, male was dominated in accidents number and death rate. (Casualty rate; 61.66%). 3. In the comparison of each hour differences, the accident was mostly occured during afternoon from 16:00 to 18:00(12.23%). 4. The most common day of week was Sunday (14.74%). 5. The most common season of year was Autumn (27.92%). 6. In the comparison of occupational differences, the high incidences were showed in labor men (31.06%) and business men (12.12%). 7. In the comparison of accidental vehicles, the most common vehicle were cars and the next were trucks and buses. 8. The most common mechanism of accidents was collision (57.41%). 9. In the comparison of clinical differences, orthopaedic and neurosurgical injuries were most common types of the hospitalized casualties. 10. In the comparison of anatomical fracture sites, the most common site was tibia (15.81%) and the next site was femur (12.56%).

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Electrophysiological Properties of Ion Channels in Ascaris suum Tissue Incorporated into Planar Lipid Bilayers

  • Park, Kwon Moo;Kim, Sun-Don;Park, Jin Bong;Hong, Sung-Jong;Ryu, Pan Dong
    • Parasites, Hosts and Diseases
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    • v.59 no.4
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    • pp.329-339
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    • 2021
  • Ion channels are important targets of anthelmintic agents. In this study, we identified 3 types of ion channels in Ascaris suum tissue incorporated into planar lipid bilayers using an electrophysiological technique. The most frequent channel was a large-conductance cation channel (209 pS), which accounted for 64.5% of channels incorporated (n=60). Its open-state probability (Po) was ~0.3 in the voltage range of -60~+60 mV. A substate was observed at 55% of the main-state. The permeability ratio of Cl- to K+ (PCl/PK) was ~0.5 and PNa/PK was 0.81 in both states. Another type of cation channel was recorded in 7.5% of channels incorporated (n=7) and discriminated from the large-conductance cation channel by its smaller conductance (55.3 pS). Its Po was low at all voltages tested (~0.1). The third type was an anion channel recorded in 27.9% of channels incorporated (n=26). Its conductance was 39.0 pS and PCl/PK was 8.6±0.8. Po was ~1.0 at all tested potentials. In summary, we identified 2 types of cation and 1 type of anion channels in Ascaris suum. Gating of these channels did not much vary with voltage and their ionic selectivity is rather low. Their molecular nature, functions, and potentials as anthelmintic drug targets remain to be studied further.