• 제목/요약/키워드: Pain Threshold

검색결과 444건 처리시간 0.021초

전기미각측정기를 이용한 재발성 아프타성 궤양 환자의 미각평가 (Evaluation of Taste in the Patients with Recurrent Aphthous Ulceration by Electrogustometer)

  • 전진용;안용우;고명연
    • Journal of Oral Medicine and Pain
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    • 제32권1호
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    • pp.1-8
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    • 2007
  • 1. 서론 : 미각 장애는 신체적, 정신적 건강의 유지에 매우 중요한 문제라 할 수 있으며 국소적 병소나 전신적 질환의 한 증상으로 나타나는 경우가 많기 때문에 질병의 진단에 좋은 참고 자료를 제공하기도 한다. 미각역치검사는 검사방법에 따라 화학용액법과 전기미각측정법으로 나눌 수 있는데 이중 전기미각측정법이 자주 사용된다. 전기미각측정법을 이용하여 전신적, 환경적 요인을 고려한 연구가 다양하게 진행되었으나 구강내 병소와 관련된 미각의 연구는 불충분 하였다. 이에 구강내 질환중 가장 자주 발생하는 RAU와 미각과의 상관관계를 알아보고자 한다. 2. 연구대상 및 방법 : 부산대학교병원 구강내과에 내원한 환자 중에 구강검사를 통해 재발성 구내궤양으로 진단된 환자 27명을 실험군으로 선택하고, 인천 소재 00치과의원에 내원한 치과환자 중에 미각에 영향을 미칠 수 있는 전신질환, 약물복용, 구강내 연조직 질환을 가지고 있지 않는 환자 70명을 대조군으로 선택하였다. 전기미각측정기(Electrogustometer, Model EG-2B, Nagashima Medical Instrument Co., Nagashima, Japan)를 사용하여 오른쪽 혀끝, 측방 중앙부위, 유곽유두 근처부위, 연구개 부위에서 미각역치 측정을 시행하였다. 연구대상자는 왼손에 전기 미각측정기의 부저를, 오른손에 음극을 잡도록 하였다. 검사자는 양전극을 피검자의 측정하고자 하는 부위에 위치시킨 후 전류강도를 낮은 수치에서부터 점점 증가시켰다. 각 부위에서 5분 간격으로 2회 측정한 다음, 평균치를 구하여 그 부위에 대한 전기미각역치로 정하였고, 측정단위는 dB로 하였다. 재발성 구내궤양 환자들은 진단이 되었을 때 미각역치를 측정하고, 1회 치료 후 한 번 더 측정하여 비교하였다. 34dB에서 느끼지 못하는 연구대상자들의 전기미각역치는 34dB로 기록하였고, 재발성 구내궤양 환자인 실험군에서는 구강증상의 변화를 Numerical Analougue Scale(NAS)로 평가하였다. 3. 결론 : 1. 재발성 구내궤양 환자군에서 대조군에 비해 전기미각역치는 매우 낮았다. 2. 여성에서는 재발성 구내궤양 환자군에서 전기미각역치가 매우 낮았으며, 남성에서는 연구개를 제외한 전 부위에서 낮았다. 3. 재발성 구내궤양 환자군의 구내병소가 단일병소일 경우보다 복수 병소일 경우에 미각역치가 더 높은 경향을 보였다. 4. 재발성 구내궤양 환자군의 만성도에 따른 비교에서는 만성환자군에서 혀끝, 유곽유두부위, 연구개 부위에서 높은 경향을 보였으며 급성환자군에서는 혀 측방중앙부위에서 높은 경향을 보였다. 5. 재발성 구내궤양 환자군의 치료에 따른 전기미각역치는 혀끝, 혀 측방중앙부위, 유곽유두부위에서 유의하게 상승하였고 연구개에서는 상승하는 경향을 보였으며 NAS는 감소하는 경향을 보였다.

피록시캄 패취제의 소염, 진통 효능 및 피부자극시험 (Anti-inflammatory and Analgesic Activities, and Skin Irritation Test of Piroxicam Patch)

  • 고광호;조미정;이장훈;노민수;류재련;이진화;안재석;태주호;민동선
    • Biomolecules & Therapeutics
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    • 제2권1호
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    • pp.71-76
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    • 1994
  • Anti-inflammatory and analgesic activities and skin irritation of piroxicam patch were investigated. Piroxicam patch increased the pain threshold in rat hind paw inflamed by carrageenan and inhibited writhing induced by acetic acid in mice. Piroxicam patch also inhibited the carrageenan-induced edema in rat hind paw as well as the increased vascular permeability induced by histamine in rats. In adjuvant arthritis of rats, piroxicam patch showed anti-inflammatory effects. Skin irritation of piroxicam patch was tested in Newzealand White rabbits and evaluated by Primary Irritation Index of Draize. The results from skin irritation test showed that piroxicam patch seemed practically non-irritating. The result from the present study indicates that piroxicam may be useful without serious side effects as anti-inflammatory analgesics in this patch form.

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Electrosurgery Sparks induced Stimulating Current at Active Electrode

  • 김지훈;나병근;배인식;설유빈;장홍영
    • 한국진공학회:학술대회논문집
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    • 한국진공학회 2011년도 제41회 하계 정기 학술대회 초록집
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    • pp.318-318
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    • 2011
  • Electrosurgery has been widely used in surgical procedures for many years. The surgical procedure using radiofrequency power generated occasionally sparks causing electrical stimulations. According to a paper of commercialized APC (Argon Plasma Coagulation) in the gastrointestinal endoscopy, Patients treated by APC had experienced pain and neuromuscular stimulation. This study aimed to investigate the electrosurgery sparks. In this experiment, current threshold of electrosurgery using rf was investigated. Sparks analogous to surgical situation was generated and measured the I-V figure. Asymmetric current, observed by other researchers, was also measured. This could be explained by difference between positive phase and negative phase. Furthermore, a method was developed to remove asymmetric current and to make safer device for surgical field.

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AS6의 일반약리작용시험 (General Pharmacology of AS6)

  • 김현진;최규갑;도선희;김은주;차경회
    • Biomolecules & Therapeutics
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    • 제10권4호
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    • pp.258-267
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    • 2002
  • In this study the general pharmacological profiles of AS6 on the central nervous system, cardiovascular and the other organs were investigated. The dosages given were 0, 250, 500 and 1000 mg/kg and drugs were orally administered. The animals used for this study were mice, rats and guinea pigs. Significant increases (p<0.01) in the charcoal transport capacity were observed at the high dose of 1000 mg/kg and significant increases in retardation of pain threshold were observed in the test using acetic acid in all dosed animals. However, AS6 showed no noticeable effects on general behavior, motor coordination, spontaneous locomotor activity, hexobarbital-induced sleep time, body temperature, analgesic activity in the test using hot plate method and anticonvulsant activity. Furthermore no noticeable effects were observed in cardiovascular functions in the isolated rat heart, contraction and relaxation of the smooth muscle in the isolated guinea ileum, gastric secretion and renal function.

사람유두종바이러스 백신접종 후 발생한 소섬유신경병과 기립빈맥증후군 (Small Fiber Neuropathy and Postural Orthostatic Tachycardia Syndrome after Human Papillomavirus Vaccination)

  • 이채원;임영민;고명아;김현진;김광국
    • 대한신경과학회지
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    • 제36권4호
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    • pp.318-321
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    • 2018
  • We describe a 44-year-old woman with paresthesia, fatigue, and palpitation, 10 days after human papillomavirus (HPV) vaccination. The quantitative sensory test showed abnormal detection threshold in her foot. Tilt test result indicated postural orthostatic tachycardia syndrome. Symptoms were improved after immunomodulating therapy, pain control drug, and oral beta blocker medication. This is first case report for small fiber neuropathy and autonomic dysfunction after HPV vaccination in Korea.

죽력(竹瀝)과 천축황(天竺黃)이 Streptozotocin으로 당뇨가 유발된 백서의 혈당강하 및 말초신경기능회복에 미치는 영향 (The Effects of Bambusae caulis in liquamen and Bambusae concretio silicae on Blood Sugar Reduction and Improvement of Peripheral Nerve Function in Diabetic Rats Induced with Streptozotocin)

  • 박수곤;배길준;이욱재;김선종;정민영
    • 한방재활의학과학회지
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    • 제24권1호
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    • pp.13-30
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    • 2014
  • Objectives This study was designed to investigate the effects of Bambusae caulis in liquamen and Bambusae concretio silicae on blood sugar reduction and improvement of peripheral nerve function in diabetic rat models. Methods Diabetic rat models induced by streptozotocin were divided into five groups. We fed experimental group I of rats basal diet and administered normal saline (3 ml, 1 time/1 day) for 6 weeks. We fed experimental group II of rats basal diet and administered Bambusae caulis in liquamen (100 mg/kg, 1 time/1 day) for 6 weeks. We fed experimental group III, IV, V of rats basal diet and administered Bambusae concretio silicae (100 mg/kg, 200 mg/kg, 400 mg/kg once a day) for 6 weeks. We investigated weight and glucose level of rats, and carried out touch test, hot plate test, sensory & motor nerve conduction velocity test and immunohistochemical study after 48 hours, 2 weeks, 4 weeks and 6 weeks. Results 1. The weight of all experimental group was gradually decreased. And glucose level was significantly decreased in the experimental group II, III, IV, V as compared with experimental group I. Especially experimental group II, IV, V were significantly decreased as compared with experimental group III. 2. In the quantitative analysis by touch test and hot plate test, mechanical pain threshold and heat pain threshold were significantly decreased in the other experimental groups as compared with experimental group I. Especially experimental group II, IV, V were significantly decreased as compared with experimental group III. 3. In the sensory and motor nerve conduction velocity test, sensory and motor nerve conduction velocity were significantly increased in the other experimental groups as compared with experimental group I. Especially experimental group II, IV, V were significantly increased as compared with experimental group III. 4. In the substance P immunohistochemical study, experimental group II, IV, V showed strong immune response in spinal cord. Conclusions Bambusae caulis in liquamen and Bambusae concretio silicae were probably useful to treat patients with diabetic peripheral neuropathy.

한국인 청년 남성에서 흡연에 의한 미각역치의 변화 (Changes of Taste Threshold after Smoking in Young Korean Men)

  • 홍성주;유지원;안종모;윤창륙
    • Journal of Oral Medicine and Pain
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    • 제35권3호
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    • pp.183-192
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    • 2010
  • 흡연과 미각간의 상관관계를 알아보고자 조선대학교 치과대학 및 치의학전문대학원에 재학 중이거나 조선대학교 치과병원에 근무 중인 건강한 한국인 청년기 남성들을 대상으로 28명의 흡연자와 29명의 비흡연자를 선발하여, 설문조사 및 전기미각검사를 시행한 결과, 1. 흡연 후 주관적 미각변화가 있는 사람 10 명(36%), 없는 사람 18 명(64%)으로 나타났다. 2. 흡연자의 혀끝, 혀측방, 유곽유두, 연구개에서 흡연 전 전기미각역치는 비흡연자보다 높았다(p < 0.05). 3. 흡연 전과 흡연 직후의 전기미각역치는 혀끝, 혀측방, 유곽유두 및 연구개에서 흡연 전보다 높았고(p < 0.05), 시간경과에 따른 수치는 불규칙했다. 4. 흡연자의 흡연량과 중독정도에 따른 전기미각역치의 차이는 관찰되지 않았다. 이상의 결과를 종합할 때, 흡연자와 비흡연자의 전기미각역치간에 있어서 차이가 나타나며, 흡연자는 흡연 직후 흡연으로 인한 미각변화가 발생함을 확인하였다. 그러나 그 영향은 일시적이며, 흡연자의 흡연량과 중독정도에 따른 미각기능의 차이는 관찰되지 않았다. 본 연구 결과를 토대로 앞으로의 연구에서는 화학미각검사법(chemical taste test)을 통한 흡연 전, 후의 미각기능의 차이에 대한 연구가 필요할 것으로 사료되며, 더불어 흡연의 후각기능에 대한 영향도 함께 고려되어야 할 것이다.

체외수정시술을 위한 과배란유도시 Highly Purified Follicle Stimulating Hormone (HP-FSH) 피하주사와 Follicle Stimulating Hormone 근육주사의 비교연구 (Subcutaneous Administration of Highly Purified-FSH(HP-FSH) versus Intramuscular Administration of FSH in Superovulation for IVF-ET)

  • 배상욱;김진영;원종건;정창진;장경환;이병석;박기현;조동제;송찬호
    • Clinical and Experimental Reproductive Medicine
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    • 제24권1호
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    • pp.135-141
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    • 1997
  • The early studies demonstrated that the relative amount of FSH was important for stimulating normal ovarian activity and demonstrated the existence of a threshold level for FSH, above which follicular growth was activated. It was found that only a modest increase in circulating FSH level above the threshold (between 10 and 30%) was required to stimulate folliculogenesis. In addition, FSH is primary responsible for initiating estradiol production through the activation of the aromatase enzyme system in granulosa cells, follicular secretion and growth. LH on the other hand, plays a supportive role in ovarian steroidogenesis, stimulating the ovarian thecal cells to produce androgen, the precursor for estradiol synthesis. But there is now an increasing number of reports in the literature demonstrating an adverse effect of LH on fertility and miscarriage in infertile and fertile women. So HP-FSH is the drug of a highly purified FSH preparation which has a higher specific activity and far fewer impurities than FSH. This study was performed to evaluate the efficacy and safety of HP-FSH administered (SC; subcutaneous) versus FSH(IM; intramuscular) for ovulation induction. 20 candidates patients for ovulation induction were participated. All patients underwent pituitary desensitizing with a long gonadotropin-releasing hormone (GnRH) agonist protocol and ovulation induction was started with HP-FSH SC (10 patients; group I) or FSH IM (10 patients; group II). After ovulation, outcome of ovulation induction and local reaction of injection site were compared. There were no difference of outcome of ovulation in two groups except pregnancy rate/embryo transfer. Group I had a higher pregnancy rate/ embryo transfer than Group II (44.4% Vs 28.6%). Pain, redness, tenderness, bruising and itching when the injection received on the first 5 days of treated (50 SC and 50 IM injections) were assessed. There were no significant difference (P>0.05) in the incidence of tenderness, bruising and itching between the IM and SC injection. But IM injection (FSH) had a tendency of higher above incidence. The number of reports of pain, redness were significantly increased in IM injection group (P<0.05). These results indicate that SC administration of HP-FSH has been shown to be as effect for superovulation as traditional gonadotropins, with an improved safety profile due to the removal of extaneous proteins.

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해부학적 위치에 따른 혀의 촉각식별능의 차이와 심상유두 개수의 관계 (The Relationship of Two-Point Discrimination Threshold and the Number of Fungiform Papilla According to Anatomical Location of Tongue)

  • 김균요;허윤경;최재갑
    • Journal of Oral Medicine and Pain
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    • 제33권4호
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    • pp.295-303
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    • 2008
  • 목적: 혀의 해부학적 위치에 따른 촉각식별능의 차이를 조사하고 이것과 심상유두의 개수 사이에 관련성이 있는지의 여부를 확인하기 위해서 본 연구를 시행하였다. 방법: 현재 복용 중인 약물이 없고, 과거 장기간 약물을 복용한 경험이 없었으며, 전신질환이 없는 건강한 남녀 13명(평균 연령 $30{\pm}3$세)을 대상으로 혀의 수초성 $A{\delta}$ 섬유와 무수초성 C 섬유와 관련한 촉각식별능을 알아보기 위해서 Castroviezo $caliper^{(R)}$를 이용한 두점식별검사를 실시하였다. 심상유두의 개수는 methylene blue로 혀를 염색해서 심상유두를 확인하여 개수를 세었다. 결과: 1. 혀의 전방부와 후측방부위의 심상유두개수를 세어 본 결과, 남자는 전방과 후측방이 각각$51.69{\pm}14.15$개, $12.92{\pm}6.13$개였으며, 여자는 $58.85{\pm}13.56$개, $16.23{\pm}6.38$개였다. 남녀 모두 후측방에 비해 전방부에서 유두의 개수가 3배 이상 많은 것을 관찰할 수가 있다. 2. 두 점으로 식별해내는 최소한의 거리는 전방에서 평균 $1.91{\pm}0.74mm$였으며, 성별에 따라 나눠 다시 분류했을 때, 남자의 인식 역치가 높은 것으로 관찰되었으나, 성별에 따른 통계적 유의성은 나타나지 않았다. 3. 두점식별거리를 기준으로 네 개의 그룹으로 나누었을 때, 거리가 증가할수록 심상유두의 개수가 감소하는 경향을 보였다. 그러나, 두점인지역치와 심상유두의 개수 간에 통계적 유의성은 없었다.

Discrimination of Fall and Fall-like ADL Using Tri-axial Accelerometer and Bi-axial Gyroscope

  • Park, Geun-Chul;Kim, Soo-Hong;Baik, Sung-Wan;Kim, Jae-Hyung;Jeon, Gye-Rok
    • 센서학회지
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    • 제26권1호
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    • pp.7-14
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    • 2017
  • A threshold-based fall recognition algorithm using a tri-axial accelerometer and a bi-axial gyroscope mounted on the skin above the upper sternum was proposed to recognize fall-like activities of daily living (ADL) events. The output signals from the tri-axial accelerometer and bi-axial gyroscope were obtained during eight falls and eleven ADL action sequences. The thresholds of signal vector magnitude (SVM_Acc), angular velocity (${\omega}_{res}$), and angular variation (${\theta}_{res}$) were calculated using MATLAB. When the measured values of SVM_Acc, ${\omega}_{res}$, and ${\theta}_{res}$ were compared to the threshold values (TH1, TH2, and TH3), fall-like ADL events could be distinguished from a fall. When SVM_Acc was larger than 2.5 g (TH1), ${\omega}_{res}$ was larger than 1.75 rad/s (TH2), and ${\theta}_{res}$ was larger than 0.385 rad (TH3), eight falls and eleven ADL action sequences were recognized as falls. When at least one of these three conditions was not satisfied, the action sequences were recognized as ADL. Fall-like ADL events such as jogging and jumping up (or down) have posed a problem in distinguishing ADL events from an actual fall. When the measured values of SVM_Acc, ${\omega}_{res}$, and ${\theta}_{res}$ were applied to the sequential processing algorithm proposed in this study, the sensitivity was determined to be 100% for the eight fall action sequences and the specificity was determined to be 100% for the eleven ADL action sequences.