• Title/Summary/Keyword: 위약효과

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The Effect of Low Level Laser Therapy on Pressure Pain Threshold in Patients with Temporomandibular Disorders : A Double-blind Study (저출력레이저 조사가 측두하악장애환자의 압력통각역치에 미치는 영향)

  • Cho, Kyung-Ah;Park, June-Sang;Ko, Myung-Yun
    • Journal of Oral Medicine and Pain
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    • v.24 no.3
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    • pp.281-300
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    • 1999
  • 측두하악장애환자와 정상대조군의 두경부 근육에 있어서 실제 또는 위약 치료에 따른 저출력 레이저의 효과와 측두하악장애환자에서 저출력 레이저의 효과적인 치료기간을 평가하기 위하여, 측두하악장애를 가진 부산대학교 치과대학생 19명과 측두하악장애의 병력이나 증상이 없는 부산대학교 치과대학생 20명을 대상으로 치료전, 치료 2주 및 치료 4주에 구외촉진이 가능한 32 근골격 촉진점의 압력통각역치와 각각의 동통정도와 두개하악지수를 측정하여 다음과 갈은 결론을 얻었다, 1. 치료전 환자군의 압력통각역치는 정상대조군 압력통각역치보다 낮았다(p<0.05), 2. 환자군의 압력통각역치는 유의하게 증가하였으며 (p<0.05) 레이저 조사 환자군의 증가된 압력통각역치는 레이저 모의조사-환자군의 증가된 압력통각역치보다 더 크게 나타났다. 3. 대조군에서는 레이저 조사나 모의 조사에 의해 압력통각역치와 변화가 없었다. 4. 레이저 조사-환자군의 압력통각역치가 안면근육에서는 치료2주부터 유의하게 증가하였고 경부근육에서는 치료4주부터 유의하게 증가하였다(p<0.05) 5. 레이저 조사-환자군에서 동통의 정도와 두개하악지수는 유의하게 감소하였다(p<0.05).

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Effect of Socheongryong-tang on Punghan and Pungyeol Type Common Cold : A Double Blind, Placebo Controlled Study (풍한형 및 풍열형 감모에 대한 소청룡탕의 효과 - 이중맹검, 위약대조군연구)

  • Park, Yang-Chun
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.19 no.2
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    • pp.524-529
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    • 2005
  • Socheongryong-tang(SCRT) is widely used to treat the common cold. The purpose of this study was to evaluate the efficacy of SCRT on Punghan type(風寒型) and Pungyeol type(風熱型) common cold. 98 registered students with commom colds of recent onset were randomized to the double blind, placebo-controlled study. SCRT extract in capsule, $5.4g(1.8g{\times}3cap)$, orally dissolved 3 times a day. The severity of illness was assessed by the physician, using a 5-point scale on start and finish. In Pungyeol type common cold, no statistically significant differences were detected between the SCRT and placebo groups for any of the measured outcomes. In Punghan type common cold, SCRT significantly reduced rhinorrhea (p=0.034) and nasal stuffiness (p=0.048) compared with placebo. This study shows that SCRT is effective in treating cold symptoms in Punghan type common cold. If patients with cold are able to be administered SCRT according to common cold type, the benefit would be expected to increase.

Effects of Butorphanol on Behavior after Intestinal Anastomosis in Dogs (Butorphanol의 투여가 장문합술 후 개의 행동에 미치는 영향)

  • Koo Ja-min;Lee Hee-chun;Chang Hong-hee;Seong Yong-jeung;Lee Hyo-jong;Yeon Seong-chan
    • Journal of Veterinary Clinics
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    • v.22 no.1
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    • pp.6-15
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    • 2005
  • This study was performed to investigate non-invasive behavioral pain assessment of dogs after surgery, and the analgesic effects of butorphanol after intestinal anastomosis in dogs. In this study, five dogs in the Control Group were anesthetized, but did not undergo surgery. Five dogs in the Analgesic Group were undergone intestinal anastomosis and treated with butorphanol. Five dogs in the Non-analgesic Group were also undergone intestinal anastomosis without analgesic treatment. The dogs in the Analgesic Group received butorphanol (0.4 mg/kg, IM) before and immediately after operation, while dogs in Control and Non-analgesic Groups received isovolumetric doses of sterile saline. The behavior of dogs were videotaped for 400 mins after anesthesia, during which time a researcher interacted with the dog once per each 80 mins. At each interaction, the researcher recorded behavioral pain score, using University of Melbourne Pain Scale. Interactive and non-interactive behaviors were observed and quantitated by a single observer using focal continuous sampling method. Vocalizations were obtained during 400 mins after anesthesia, and duration of call, intensity, pitch, 1-4 Formant were analyzed. Surgery affected an increasing of pain score. During interactions with researcher, greeting behaviors were decreased after surgery. Differences between Analgesic group given analgesic or that given a placebo drug were readily understood using quantitative behavioral measurements and vocalization. Significant difference between Analgesic group given butorphanol or that the given placebo drug was apparent(p< 0.05).

Reevaluation of Clinical Efficacy of Peripheral Vasodilator: Ethaverine HCl (말초혈관(襪梢血管) 확장제(擴張劑) Ethaverine HCl의 임상효과(臨床效果)의 재평가(再評價))

  • Kim, Yoon-Young;Cho, Young-W.
    • The Korean Journal of Pharmacology
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    • v.11 no.1 s.17
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    • pp.33-38
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    • 1975
  • The clinical efficacy of Ethaverine, a peripheral vasodilator, was studied according to a double-blind, non-cross over method in 29 diabetic patients with peripheral arterial diseases. The clinical improvement was assessed from the history of patients including the incidence and frequency of intermitten claudication. Ethaverine, after 4 weeks of therapy, was not effective in improving clinical symptoms compared to placebo. Ethaverine, however, was an efective vasodilator than placebo. The quality of vasodilation induced by Ethaverine, was similar to that of alcohol. A new clinical method of studying peripheral vasodilator was presented. The clinical symptoms of peripheral vascular arterial disease in the lower extrimities include reduced intensity of palpable pulses, coldness, and discoloration of the skin. Intermittent claudication may be present. Pathologic changes in vessel architecture precede the symptoms, and recognition of impending vascular insufficiency is a determining factor in selecting vasodilating therapy or surgical management. Also, post-operative patients who have chronic peripheral vascular arterial disease may be candidates for subsequent vasodilating therapy. Peripheral vasodilators, according to the series of reports, may be indicated in vasospastic peripheral vascular condition rather than an occlusive vascular disease and the vessel responds best when a relatively large vascular beds are involved rather than a small, capillary beds. Recently, the clinical efficacy of peripheral vasodilators have been challanged by many clinical investigators and clinicians. In this study, we have re-evaluated the efficacy of Ethaverine HCl as peripheral vasodilator in patients with vasospastic peripheral arterial disease. Ethaverine is claimed to be two to four times as potent a spasmolytic agent as papaverine in a variety of laboratory and clinical work.

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A Randomized, Double-Blind, Placebo-Controlled Trial of Early Ursodeoxycholic Acid Administration for Prevention of Total Parenteral Nutrition-Induced Hepatobiliary Complications (총정맥영양법의 간담도 합병증에 대한 Ursodeoxycholic Acid 조기투여의 이중맹검 위약대조군 연구)

  • Choe, Yon-Ho;Beck, Nam-Sun;Kim, Ji-Hee;Lee, Suk-Hyang;Park, Tae-Sung
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.5 no.2
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    • pp.174-180
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    • 2002
  • Purpose: Ursodeoxycholic acid (UDCA) is known to decrease hepatic injury by promoting the biliary secretion of retained toxic endogenous bile acids in hepatobiliary diseases complicated by total parenteral nutrition (TPN). However, most studies have focused on treatment for complications after TPN. We investigated the preventive role of early administration of UDCA in TPN-induced hepatobiliary complications by a randomized, double-blind, placebo-controlled trial. Methods: Between May 2000 and May 2002, thirteen patients, who were given TPN more than 10 days in the hospital, were assigned randomly to two groups. One was the case group (7 patients) who were given UDCA simultaneously with TPN regimen, and the other, the control group (6 patients) who were given placebo. Their age ranged from 1 day to 13 years. They were affected with diseases impossible for enteral nutrition, such as prematurity, cerebral palsy, chronic diarrhea, anorexia nervosa, pancreatitis, and cyclic vomiting. The duration of TPN ranged from 10 to 70 days. Hematologic parameters including liver function test were measured at regular intervals, and the duration, composition, administration rate, total calorie of TPN were recorded. The serum levels of total bilirubin, aspartate aminotransferase (AST), alanine aminotransferase (ALT), and alkaline phosphatase were compared between groups after cessation of the study. Results: The autoregressive coefficient of the control group was 0.4419 (p=0.0651) in bilirubin, -0.0431 (p=0.7923) in AST, 0.2398 (p=0.2416) in ALT, and 0.2459 (p=0.1922) in alkaline phosphatase by mixed procedure model when the parameters were referred to the case group. Conclusion: The serum level of total bilirubin did not increase in comparison with that of the control group, but statistically insignificant, when both TPN and UDCA were administered simultaneously from the beginning.

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The Improvement Effect of MMSC (DL-Methionine Methylsulfonium Chloride) in Functional Dyspepsia Animal Models (동물모델을 이용한 MMSC(DL-Methionine Methylsulfonium Chloride)의 기능성소화불량증 개선효과)

  • Kim, Jae Min;Cha, Myoung Hee;Lee, Don Haeng;Lee, Woon Kyu
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.42 no.12
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    • pp.2076-2081
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    • 2013
  • The objective of this study is to investigate the gastric emptying and gastrointestinal transit improvement effect of DL-methionine methylsulfonium chloride (MMSC) in functional dyspepsia animal models. Cisplatin causes nausea, vomiting, and inhibition of gastric emptying. Rats were divided into four groups: G1 (normal group), G2 (gastric emptying induced by cisplatin), G3 (gastric emptying induced by cisplatin with itopride 30 mg/kg pretreatment), and G4 (gastric emptying induced by cisplatin with MMSC 4 mg/kg pretreatment). Immediately after an oral administration of a liquid meal (phenol red), delayed gastric emptying was induced by cisplatin (10 mg/kg (i.p.)). After 20 min in the cisplatin administration, the animals were sacrificed. In rats treated with cisplatin, the gastric emptying rate was significantly reduced. On the other hand, MMSC reversed the reduction of gastric emptying induced by cisplatin. And also, MMSC caused to travel FITC-dextran more significantly longer distance than the control, which is based on the values of the mean geometric center in the atropine driven delayed gastrointestinal transit animal models. Furthermore, MMSC drastically increased the gastrointestinal transit in rats, considerably increased the values of the mean geometric center (MGC), compared to the control, which was comparable to that of mosapride. These results suggest that MMSC could be an effective component for the treatment of functional dyspepsia.

Effect of Bright Light Exposure on Adaptation to Rapid Night Shift : A Field Study of Shift Work Nurses in Psychiatric Ward (순환제교대근무자에서 야간 근무 적응에 대한 광치료 효과)

  • Ko, Young-Hoon;Joe, Sook-Haeng
    • Sleep Medicine and Psychophysiology
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    • v.9 no.1
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    • pp.41-47
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    • 2002
  • Objectives: In a number of simulated night shift studies, timed exposure to bright light improves sleep quality and work performance. We evaluated the effect of bright light on adaptation to night shift work with a field study. Methods: Five female nurses working shifts at Korea University Hospital were recruited for participation in this study. We investigated two series of six consecutive shift rotations comprising three day and three night shifts, using wrist Actigraphy, the Stanford Sleepiness Scale, Visual-analogue scales, STIM and tympanic membrane temperature for daytime sleep quality, alertness, subjective feeling, attention performance, and temperature rhythm. The subjects were exposed to bright light (2,500 lux) from 24:00 to 04:00 a.m. on three consecutive night shifts during the second series, whereas they worked under normal lightening (650 lux) conditions during the first series. Results: Actigraphic assessment of daytime sleep showed no significant difference between the first and third night shift in both baseline and light exposure phase. The mean lowest temperature shifted earlier during baseline phase but not during the light exposure phase. Also, the score for subjective feelings of depression, anxiety, physical discomfort and sleepiness was significantly higher in the third night shift than the first during baseline phase but not during the light exposure phase. Attention and attention switching ability was significantly improved in the third night shift compared to the first night during the light exposure phase but there were no significant changes during the baseline phase. Conclusion: This result suggests that there were no significant differences between the two phases in measures of quality of daytime sleep, but subjective feelings, attention and alertness were enhanced during light exposure. Although some placebo effects and learning effects might influence this result, bright light exposure between midnight and 4:00 a.m. may improve adaptation to night shift. In future, further controlled studies with a larger sample size, including melatonin measurement, are needed for real shift workers.

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Efficacy of Pamidronate in Nephropathic Children with Ongoing Long Term Corticosteroid Therapy (장기 스테로이드 치료요법 중인 신질환 환자에서 Pamidronate의 효과)

  • Hong Hyun-Kee;Kim Eun-Seong;Kim Sung-Do;Cho Byoung-Soo
    • Childhood Kidney Diseases
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    • v.8 no.1
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    • pp.43-50
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    • 2004
  • Background : Steroid-induced osteoporosis(SIO) is one of the serious complications of long-term steroid therapy, especially in growing children. Recently bisphosphonates have been used to treat or prevent SIO in adult, which is rare in children with glomerular diseases. We studied the effect of pamidronate on SIO using dual energy X-ray absorptiometry and biochemical markers of bone turnover. Methods : Forty four children receiving moderate-to-high doses of steroids were enrolled. They had no history of bone, liver, or endocrine disease. Patients were stratified by their baseline bone mineral density(BMD) findings. All patients received corticosteroids for 3 month and oral calcium supplementation(500 mg/day) daily. Among them, 28 patients were treated with placebo and 16 were treated with pamidronate(125 mg) for 3 months. Blood chemistry and bone mineral density(BMD) were measured at baseline, and 3months. In addition, parathyroid hormone(PTH), serum osteocalcin, and urinary dipyridinoline levels were evaluated. Results : In overall population, the mean lumbar spine BMD decreased from $0.754{\pm}0.211(g/cm^2)$ to $0.728{\pm}0.208(g/cm^2)$ in the placebo group(P<0.05) and increased from $0.652{\pm}0.194(g/cm^2)$ to $0.658{\pm}0.226(g/cm^2)$ in the pamidronate group(P>0.05). Conclusion : Pamidronate appears to be effective in preventing SIO in children with glomerular diseases requiring long-term steroids therapy. Further careful observation and follow-up might be needed for children receiving bisphosphonates such as pamidronate.

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Improvement of Skin Moisture Capacity through Dietary Beauty Supplement Containing Ceramides Derived from Rice (쌀 유래 세라마이드를 함유한 미용보조제의 피부미용개선 효과)

  • Kim, Tae-Su;Lee, Sung-Pyo;Park, So-I;Yang, Woong-Suk;Kang, Myung-Hwa;Murai, Hiromichi;Okada, Tadashi;Lee, Jae-Hwan;Park, Il-Bum;Park, Hyun-Jun
    • Korean Journal of Food Science and Technology
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    • v.44 no.4
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    • pp.434-440
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    • 2012
  • A placebo-controlled double-blind ingestion study of a beauty supplement containing rice-derived ceramide was performed. Thirty three subjects who always tended to have rough skin due to dryness participated in the study. Dermatological diagnosis by physicians showed that the supplement significantly improved dryness and itching of the skin. On measurement of water content in the skin, the supplement was shown to significantly increase water content in the skin. On microscopic three-dimensional analysis of the epidermis, the supplement was shown to improve smoothness, exfoliation, and short-term ingestion of the supplement containing rice derived ceramide, which is very effective as skin beautifying food.

Efficacy of Red Ginseng by Oriental Medical Obesity Syndrome Differentiation on Obese women : Randomized, Double-blind, Placebo-controlled Trial (비만 여성에서 한방 비만 변증에 따른 홍삼의 비만 개선 효과 : 무작위 배정, 이중 맹검, 위약 대조 임상시험)

  • Kwon, Dong-Hyun;Lee, Myeong-Jong;Lim, Chi-Yeon;Bose, Shambhunath;Lee, Su-Jin;Kim, Ho-Jun
    • Journal of Korean Medicine for Obesity Research
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    • v.11 no.1
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    • pp.1-14
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    • 2011
  • Objectives This trial was conducted to evaluate the efficacy of Red Ginseng by oriental medical obesity syndrome differentiation on obese women as compared to placebo. Methods 50 obese women were recruited and randomized to receive Korean Red Ginseng(n=24) or placebo(n=26) for 8 weeks. Anthropometric factors, serum lipid, glucose, blood pressure, pulse rate, resting metabolic rate, Korean version of obesity-related quality of life(KOQOL) scale and oriental medical obesity syndrome differentiation questionnaire were measured at baseline and 8 weeks. Adeverse events and safety outcomes variables were also checked during trials. Results and Conclusion There was significant efficacy of Red Ginseng on obese women in body weight, body fat mass, waist-hip ratio, food intake, KOQOL as compared with baseline. But there was no efficacy as compared with placebo group except KOQOL. There was no difference of efficacy compared with the oriental medical obesity syndrome differentiation.