• 제목/요약/키워드: placebo effect

검색결과 514건 처리시간 0.03초

슈퍼자미벼 미강 추출물 보충 섭취에 의한 항산화 대사 및 혈중 지질 개선 효과 (Effects of Improving Plasma Lipid Profiles and Antioxidant Metabolism of Superjami Extract Supplementation)

  • 남수진;정수임;강미영
    • 한국식품영양학회지
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    • 제32권3호
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    • pp.179-188
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    • 2019
  • This study was to confirm the effect of supplementation of superjami bran extract on lipid and antioxidant metabolism. Twenty-five subjects were recruited, and divided into Superjami group (n=12), and Placebo group (n=13) random assignment. Among the groups, the Superjami group took a Superjami bran extract (2 g/2 capsule/day), and the Placebo group took dextrin (2 g/2 capsule/day), for 12 weeks. As a result of the experiment, concentrations of TG, TC, and HDL-C in the blood, were significantly lower than those in the control group, and HDL-C was significantly higher. AI and HTR also showed positive values. Leptin did not differ significantly, but as a result of adipectin, the Superjami group displayed a higher value, compared to the Placebo group, and LAR also had significantly lower value. Antioxidant results showed that GPx, CAT, and RGLU, were significantly higher before as well as after intakes of the Superjami group, and significantly higher levels of the Superjami group, compared to the Placebo group. AOPP showed significantly lower values for the Superjami group, compared to the Placebo group. So, based on this study, ingestion of Superjami bran extract is effective in improving blood lipid concentrations as well as inflammatory substances, and has positive effects relative to increasing antioxidant activity.

Comparison of pretreatment gabapentin and pregabalin to control postoperative endodontic pain - a double-blind, randomized clinical trial

  • Verma, Jayeeta;Verma, Sidharth;Margasahayam, Sumanthini V
    • Journal of Dental Anesthesia and Pain Medicine
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    • 제22권5호
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    • pp.377-385
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    • 2022
  • Background: Postoperative endodontic pain is an enigma for the dentist. This study aimed to evaluate the analgesic effect of 300 mg gabapentin or 75 mg pregabalin in reducing postoperative endodontic pain compared with a placebo. Methods: Ninety patients who needed root canal treatment with an initial numerical rating scale (NRS) pain score of > 4 (T0) were randomly divided into three groups (n=30). Patients were then administered either 300 mg gabapentin (group A), 75 mg pregabalin (group B), or a placebo (group C) 30 min prior to the start of endodontic treatment. A single operator performed single-visit endodontics, and pain was evaluated immediately after endodontic treatment (T1) and at 4 h (T2), 8 h (T3), 12 h (T4), 24 h (T5), 48 h (T6), and 72 h (T7) using the NRS. Ibuprofen/paracetamol (400 mg/325 mg) was administered as a rescue dose if needed. Results: Pregabalin performed significantly better when compared with gabapentin at all time points except at 72 h after treatment (P=0.170). The placebo group showed significantly higher pain scores than the other two groups. The percentage of pain relief was maximum for pregabalin (92.1%), followed by gabapentin (87.6%) and placebo (69.1%) at 72 h after treatment completion. Conclusion: This study showed that pretreatment with a single dose of pregabalin and gabapentin both had greater analgesic effects than a placebo. They can be effectively used to reduce postoperative endodontic pain.

Effect of the supplementation of fructose and taurine on energy metabolism during exercise

  • Kim, Young Min;Chang, Myoung Jei;Choi, Sung Keun
    • 운동영양학회지
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    • 제16권2호
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    • pp.101-111
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    • 2012
  • The purpose of this thesis is to investigate whether taurine supplementation in combination with fructose improves both energy metabolism and exercise capacity. Eight collegiate female subjects were recruited for the study. Each subject went through threecross-over designs: control(fluid), fructose, and taurine plus fructose supplementation trials. Subjects received taurine supplementation 100 mg/kg a day for two weeks. After the supplementation, all subjects take 10% fructose at 15 min prior to exercise, immediately before exercise, and every 15 min during exercise. Subjects received 150 ml fluid as placebo during the same procedure. The subjects performed submaximal exercise at the exercise intensity of 60% for 45 min and then 80% of maximal oxygen uptake (VO2max) until exhaustion time. A 10ml blood sample was taken for measuring the level of glucose, ammonia, lactate, free fatty acids, and insulin every 15 min during exercise at 60% of VO2max. The blood glucose levels was significantly higher at 45 min and 50 min exercise after supplementation of fructose, and immediately before exercise and 50 min exercise after taurine plus fructose compared to the placebo trial. However, the values tended to be lower in taurine plus fructose supplementation compared to the fructose trial. The levels of both lactate and ammonia were significantly lower compared to the placebo, while the exhaustion time was significantly increased. The level of free-fatty acids was significantly lower at 30, 45, and 50 min after fructoseand fructose plus taurine supplementation compared to the placebo trial. The level of glucagon was significantly lower at 15, 30, 45, and 50 min after fructose and fructose plus taurine supplementation compared to the placebo trial. There was no differences in insulin concentration among three treatments. This thesis concludes that combined taurine and fructose supplementation prior to exercise may improve exercise tolerance time and energy metabolism, lowering the muscle fatigue factors such as lactate and ammonia.

고려 홍삼이 수면의 질에 미치는 영향 : 무작위 위약-대조군 연구 (Effect of Korean Red Ginseng on Sleep : A Randomized, Placebo-Controlled Trial)

  • 이선아;강승걸;이헌정;정기영;김린
    • 수면정신생리
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    • 제17권2호
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    • pp.85-90
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    • 2010
  • 목 적: 인삼은 한국을 비롯한 아시아 국가에서 전통적으로 불면증의 치료에 사용되어 왔으며 쥐를 이용한 동물실험에서 수면을 촉진시키는 효과가 있다는 연구 결과가 있어왔다. 하지만 이러한 효과를 입증할 만한 임상 실험은 거의 이루어지지 않았다. 이에 본 연구에서는 고려 홍삼이 수면에 미치는 영향을 알아보고자 한다. 방 법: 건강한 성인 남성 20명을 대상으로 하였으며 이들은 무작위로 홍삼군과 위약군에 배정되어 2주간의 실험이 진행되었다. 홍삼군의 경우 하루 4,500 mg의 홍삼을 섭취하였다. 실험 시작시점과 2주 후인 종료시점에 수면다원검사를 시행하여 두군간의 변수의 변화를 비교하였다. 결 과: 총 15명의 대상자, 즉 홍삼군 8명과 위약군 7명이 수면다원검사를 시행 받았으며 홍삼군이 위약군 보다 실험 종료 시점에서 3단계 수면이 증가한(p=0.087) 반면에 2단계 수면이 감소하는(p=0.071) 경향을 나타냈다. 결 론: 본 연구 결과는 고려 홍삼이 깊은 잠은 증가시키고 얕은 잠은 감소시키는 경향이 있음을 보여준다. 이는 통계적으로 유의한 결과는 아니지만 홍삼이 수면의 질을 향상시키는 데 효과적임을 짐작하게 한다. 그러나, 보다 많은 대상군과 충분한 홍삼 용량으로 보다 긴 기간 동안 진행되는 연구를 통해 고려 홍삼의 수면에 대한 효과를 확인할 필요가 있다.

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삼황세제 가미방 화장품의 아토피 피부염 환자에 대한 임상적 연구 (A Clinical Study for the effect of cosmetic cream containing Samwhangsejegamibang Extracts on Atopic dermatitis patients)

  • 주현아;배현진;박민철;백상철;홍석훈;양현주;조현우;정수영;조정희;황충연
    • 한방안이비인후피부과학회지
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    • 제25권3호
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    • pp.129-149
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    • 2012
  • Objective : The purpose of this study is to investigate the effect of cosmetic cream containing Samwhangsejegamibang Extracts on Atopic dermatitis patients. Methods : A total of 51 patients who visited Wonkwang Oriental Medical Center from April 8th, 2011 to October 8th, 2011 were included in this study. In this study, the patients were treated with Samwhangsejegamibang (experimental group) and placebo group. We observed scorad index, IGA, moisture content of skin, oil content of skin, wrinkled skin and hematological examination for 4 weeks. Results : 1. Comparison of changes in Scorad Index, depending on the perspective, the experimental group showed a statistically significant decline than the placebo group. 2. Comparison of change in IGA, depending on the perspective, the experimental group showed a statistically significant decline than the placebo group. 3. Comparison of change in moisture content, oil content of skin and wrinkled skin, both the experimental group and the placebo group showed level elevation but there was no statistically significant change. 4. Comparison of change in IgE and Eosinophil, both the experimental group and the placebo group showed no statistical significance. Conclusions : Considering the above experiments, it is suggested that cosmetic cream containing Samwhangsejegamibang extracts have a positive effect on atopic dermatitis patients.

카페인이 HRV에 미치는 영향과 내관 자침의 효과에 대한 예비연구 : 무작위 이중맹검시험 (Short Time Effect of Caffeine on Heart Rate Variability and the Effect of Acupuncture at Neiguan (PC6): A Randomized Double Blind Pilot Study)

  • 정현숙;양창섭;남지성;장인수;김락형;서의석
    • 대한한방내과학회지
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    • 제29권3호
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    • pp.778-786
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    • 2008
  • Objectives : This study was to investigate the short time effect of caffeine on heart rate variability(HRV) and the effect of Neiguan(PC6) acupuncture stimulation on HRV. Methods : 27 healthy adult volunteers were randomly allocated to two groups: Neiguan group (N=13) or placebo group (N=14). The study was carried out under a randomized double-blinded placebo-controlled trial method. Each group orally received the same tablets with 200 mg caffeine. After 1 hour, acupuncture was applied to the Neiguan(PC6) points for the Neiguan group, and for the placebo group was applied to a non-acupuncture point. Both groups were estimated with HRV 3 times, before and after caffeine ingestion, 20 minutes after acupuncture stimulation. Results : After taking caffeine, pulse rate, mean-HRV, and pNN50(the proportion derived by dividing NN50 by the total number of NN intervals) decreased, SDNN(standard deviation of all normal-to-normal (NN) intervals), RMSSD (the root square of successive differences), TP log, HF(high frequency), and HRV index was increased. There were significant changes to the autonomic nervous system after taking caffeine. There were no significant differences between the two groups after acupuncture at Neiguan. Conclusion : Caffeine could induce general activation of the autonomic nervous system. Neiguan acupuncture stimulation may not have significant influence on the autonomic nervous system.

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부인과 수술 후 통증관리에 있어서 프로파세타몰의 모르핀 절감 및 내분비 대사에 대한 효과 (The Effect of Postoperative Propacetamol on Acute Pain and Endocrine-Metabolic Response in Gynecological Surgery)

  • 한태형;서재완;신백효;손종찬
    • The Korean Journal of Pain
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    • 제10권2호
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    • pp.170-178
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    • 1997
  • Background: The analgesic efficacy and safety of propacetamol, an injectable prodrug of acetoaminophen, in combination with intravenous morphine PCA were studied in 40 patients after gynecological surgery requiring lower abdominal incision. Methods: Using a double-blind, randomized, parallel-group design, the effects of four(every 6 hr) intravenous injections of 2 g propacetamol(=1 g acetoaminophen) were compared with four injections of placebo(PL) immediately after surgery. Efficacy of cumulative dose of morphine and number of boluses requested was assessed over 24 hours by automated recording on the PCA device. It was assessed on pain scores rated on a ten-point verbal scale along with vital signs, $K^+$, glucose, BUN, creatinine, PT and PTT were measured along with stress hormones(epinephrine, norepinephrine and cortisol). Results: There were no differences in demographic data between two groups. Propacetamol group demonstrated approximately 21% morphine sparing effect compared to placebo group($33.1{\pm}10.4$ mg vs $41.4{\pm}8.0$ mg). No significant differences noted in $K^+$, glucose, BUN, Creatinine, PT and PTT levels. There were significant increases in norepinephrine and cortisol in placebo group postoperatively, compared to preoperative values. At the same time, propacetamol group also showed significant changes in these hormones. Both group revealed high degree of patient satisfaction. Conclusion: Propacetamol showed significant morphine sparing effect to some degree. Side effects were much less in propacetamol group with subsequently high patient satisfaction. The secretion of stress hormone were not blocked by postoperative propacetamol injections. Authors concluded that propacetamol should be considered as an excellent adjuvant analgesics in postoperative pain control in opioid patient controlled analgesia.

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Effect of a Proton Pump Inhibitor on Tumor Bleeding Prevention in Unresectable Gastric Cancer Patients: a Double-Blind, Randomized, Placebo-Controlled Trial

  • Kim, Young-Il;Kim, Mi-Jung;Park, Sook Ryun;Kim, Hark Kyun;Cho, Soo-Jeong;Lee, Jong Yeul;Kim, Chan Gyoo;Kim, Gwang Ha;Park, Moo In;Nam, Byung-Ho;Park, Young Iee;Choi, Il Ju
    • Journal of Gastric Cancer
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    • 제17권2호
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    • pp.120-131
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    • 2017
  • Purpose: Tumor bleeding is a major complication in inoperable gastric cancer. The study aim was to investigate the effects of proton pump inhibitor (PPI) treatment for the prevention of gastric tumor bleeding. Materials and Methods: This study was a prospective double-blind, randomized, placebo-controlled trial. Patients with inoperable gastric cancer were randomly assigned to receive oral lansoprazole (30 mg) or placebo daily. The primary endpoint was the occurrence of tumor bleeding, and the secondary endpoints were transfusion requirement and overall survival (OS). Results: This study initially planned to enroll 394 patients, but prematurely ended due to low recruitment rate. Overall, 127 patients were included in the analyses: 64 in the lansoprazole group and 63 in the placebo group. During the median follow-up of 6.4 months, tumor bleeding rates were 7.8% and 9.5%, in the lansoprazole and placebo groups, respectively, with the cumulative bleeding incidence not statistically different between the groups (P=0.515, Gray's test). However, during the initial 4 months, 4 placebo-treated patients developed tumor bleeding, whereas there were no bleeding events in the lansoprazole-treated patients (P=0.041, Gray's test). There was no difference in the proportion of patients who required transfusion between the groups. The OS between the lansoprazole (11.7 months) and the placebo (11.0 months) groups was not statistically different (P=0.610). Study drug-related serious adverse event or bleeding-related death did not occur. Conclusions: Treating patients with inoperable gastric cancer with lansoprazole did not significantly reduce the incidence of tumor bleeding. However, further studies are needed to evaluate whether lansoprazole can prevent tumor bleeding during earlier phases of chemotherapy (ClinicalTrial.gov, identifier No. NCT02150447).

피부 가려움증에 대한 대두(大豆) 발효물(Bio-Peptone)크림의 유효성 평가 : 무작위 배정, 양측 눈가림, 위약크림 대조, 평행 설계 연구 (Evaluate efficacy of fermented soybean(Bio-Peptone)cream in pruritus : Randomized, double-blinded, placebo-controlled, parallel-group clinical experiment study)

  • 안재현;정현아;김은주;김애정
    • 한방안이비인후피부과학회지
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    • 제33권3호
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    • pp.27-44
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    • 2020
  • Objectives : The authors conducted randomized, Double-blinded, and placebo-controlled parallel-group clinical experiment study to evaluate efficacy of fermented soybean(Bio-Peptone)cream in pruritus. Methods : The research had been conducted for 4 months from the date of IRB approval(May 26 in 2017) to Sept 2017. The experiment started by randomly distributing 25 subjects with pruritus into experimental group and control group, respectively. The experimental group applied fermented soybean(Bio-Peptone)cream twice a day, in the morning and evening, for one week on itchy area. The effect of the product was evaluated by comparing the PSS(Patient subjective score), moisture level by measuring skin moisture content(Corneometer) and transepidermal water loss(Tewameter), and the Korean version of Skindex-29(index of quality of life improvement) before applying the cream, after applying the cream for one week and after stop applying the cream for one week. The control group conducted identical experiment with the experimental group, except the control group applied placebo instead of the fermented soybean(Bio-Peptone)cream. Results : Pruritus, criterion of the first validation testing, indicates fermented soybean(Bio-Peptone)cream tend to reduce pruritus compare to placebo, although the result is not statistically noticeable. Significant difference in reduction of prutitus, the second validation test was not discovered in both groups. Corneometer and life quality tend to be improved with soy cream than placebo, but not statistically effective and both groups did not show any difference in terms of Tewameter measurement. Conclusions : The result of clinical experiment didn't prove that the fermented soybean(Bio-Peptone)cream is more effective in reducing pruritus than placebo, statistically. The clinical use of soybean product for pruritus requires further studies to be verified.

김치유산균 Lactobacillus plantarum CJLP55 섭취가 성인 남녀의 피부 산도 및 관련 구성 인자의 변화에 미치는 영향 (Dietary effect of Lactobacillus plantarum CJLP55 isolated from kimchi on skin pH and its related biomarker levels in adult subjects)

  • 한상신;신지혜;임선희;안희윤;김봉준;조윤희
    • Journal of Nutrition and Health
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    • 제52권2호
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    • pp.149-156
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    • 2019
  • 본 연구에서는 12주간 김치에서 추출한 유산균 Lactobacillus plantarum 섭취가 피부의 산도 및 관련인자인 유리아미노산, 젖산 및 유리지방산의 함량을 변화시키는지 파악하였다. CJLP 군에서 12주차에 피부 산도가 대조군에 비해 개선되었다. 표피의 유리아미노산 함량은 대조군에 비해 변화하지 않았으며, 총 유리지방산 및 Stearic acid (C18:0), Palmitic acid (C16:0)의 함량은 감소하였다. 그러나 CJLP군에서 젖산의 함량은 대조군에 비해 12주차에 유의적으로 증가하였다. 즉 김치유산균 Lactobacillus plantarum 섭취는 CJLP 군에서 젖산 함량 증가와 함께 산도를 개선하였다.