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Aspirin (I) Discovery, Current and Potential New Therapeutic Uses, and Mechanism of Action

  • Kim, Dong-Han
    • Archives of Pharmacal Research
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    • v.1 no.1
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    • pp.41-54
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    • 1978
  • Aspirin is one of the oldest synthetic drugs and remains the most widely used medical agent. It is a household remedy effective in treating such common ailments as headache, minor muscular pain and fever. Aspirin is the drug choice for rheumatic fever and arthritis which some five million Americans suffer. Lately it has been established by double-blind and randomized clinical studies that regular aspirin intake reduces the incidence of mild strokes and heart attackes.

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Optimum Control of a Photoelectric Dimming System in a Small Office with a Double Skin Envelope

  • Kim, Soo Young;Yum, Sung Kon
    • Architectural research
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    • v.7 no.2
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    • pp.47-54
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    • 2005
  • A photoelectric dimming control system for a small private office space with a double skin envelope system was analyzed for the purpose of examining optimum control performances under a variety of daylight conditions. Computer simulations were performed for the three different photosensor types positioned at the center of ceiling in the space. They were applied in both a south and north-facing room. Daylight conditions were a fixed horizontal venetian blind on an external envelope and a retractable shading device on an internal envelope under a clear, intermediate and overcast sky at different times of a day and year. Partially-shielded photosensors provided good control performances providing the required electric light output under clear and intermediate sky conditions. Unshielded photosensors failed to provide necessary illuminance levels producing less electric output and fully-shielded photosensors generally provided excessive light output. Reasonable electric lighting energy savings were achieved except under overcast sky conditions where the control system did not contribute to energy savings due to the less daylight through envelopes. The retractable shading device covering 50% of the internal envelope reduced energy savings up to 19.62%, but the workplane illuminance levels were maintained within recommended ranges. The coefficients of determination between workplane illuminance and photosensor illuminance due to daylight ranged from 0.74 to 0.98. Partially-shielded conditions provided best correlations and the north-facing room yielded stronger correlation than the south-facing room.

The Effects of SBD-1 on Hangover Syndrome : a Randomized Double-blind Crossover Preliminary Study (신선불취단(神仙不醉丹) 가감방(加減方)의 숙취 예방효과에 대한 이중맹검 무작위배정 교차임상 예비연구)

  • Jeong, Hyun-Suk;Kang, Sei-Young;Han, Hyun-Jin;Jang, In-Soo
    • The Journal of Internal Korean Medicine
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    • v.33 no.4
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    • pp.511-519
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    • 2012
  • Objectives : This study investigated the effect of Sinseonbulchuidan (SBD-1) on hangover syndrome. We undertook this study to test whether SBD-1 is effective in preventing the signs and symptoms of alcohol-induced hangover. Methods : Fifteen healthy volunteers participated in this double-blind randomized crossover study. All participants received either SBD-1 or indistinguishable placebo capsules before alcohol consumption. The primary outcome measure was the difference in hangover severity scores between SBD-1 and placebo intervention. Secondary outcome measure was the difference in profile of mood states (POMS) between SBD-1 and placebo intervention. Results : After alcohol exposure, the overall symptom scores were significantly decreased in the SBD-1 group compared with those given a placebo. The mean scores for the hangover symptoms were high in the placebo group, and statistical significance was observed in 4 symptom scores (loss of appetite, stomachache, nausea, and total score). There were no differences in the POMS and cognitive performance test results between SBD-1 and placebo intervention. Conclusions : We conclude that the SBD-1 is effective in preventing the signs and symptoms of alcohol-induced hangover. Larger studies are required to confirm these findings.

Effects of the Combination Herbal Extract on Working Memory and White Matter Integrity in Healthy Individuals with Subjective Memory Complaints : A Randomized, Double-Blind, Placebo-Controlled Clinical Trial

  • Kwon, Oran;Lee, Sunho;Ban, Soonhyun;Im, Jooyeon J.;Lee, Doo Suk;Lee, Eun Hee;Kim, Joohee;Lim, Soo Mee;Lee, Sang Gon;Kang, Ilhyang;Kim, Kyung-Hee;Yoon, Sujung;Lee, Sun Hea
    • Korean Journal of Biological Psychiatry
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    • v.22 no.2
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    • pp.63-77
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    • 2015
  • Objectives The combination extract of four kinds of herbs, Gastrodia elata, Liriope platyphylla, Dimocarpus longan, and Salvia miltiorrhiza, has shown to have memory improving effects in mice. The aim of this study was to investigate the efficacy and safety of the herbal mixture for improving working memory as well as microstructural changes in white matter integrity in individuals with subjective memory complaints. Methods Seventy-five individuals with subjective memory complaints were assigned to receive either placebo (n = 15) or herbal mixture (low-dose group, n = 30 and high-dose group, n = 30) supplementation in an 8-week, randomized, double-blind, placebo-controlled clinical trial. Changes in working memory performance and fractional anisotropy (FA) values reflecting white matter integrity from baseline to 8-week endpoint were assessed. Results The herbal mixture group showed an increase in working memory performance compared to the placebo group (p for interaction = 0.001). In addition, the herbal mixture group showed an increase in FA values in the temporo-parietal regions (corrected p < 0.05), which are crucially involved in working memory function and are among the most affected regions in patients with cognitive impairments. Conclusions Findings from this study indicate that the herbal mixture may be a promising therapeutic option for individuals with subjective memory complaints.

Clinical Trial of Taeeumjowui-Tang(Taiyintiaowei-tang) on Obese Patients - Randomized, Double Blind, Placebo-Controlled Study - (비만 환자에 대한 태음조위탕(太陰調胃湯) 임상연구 - 무작위배정, 이중맹검, 위약·대조군 임상시험 -)

  • Li, Ji-Eun;Song, Yun-Kyung;Lim, Hyung-Ho
    • Journal of Korean Medicine Rehabilitation
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    • v.20 no.4
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    • pp.197-213
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    • 2010
  • Objectives : The clinical trial was designed to investigate the safety and effects of Taeeumjowui-tang(Taiyintiaowei-tang) extracts on the change of the weight, body compositions, serum in obese patients. Methods : This was a 12-weeks, randomized, double blind, placebo-controlled clinical trial. Patients with a body mass index of either greater than $30kg/m^2$ or between 27 and $30kg/m^2$ with controlled hypertension, diabetes, hyperlipidemia were considered eligible. Participants of 41 obese patients were randomized either to Taeeumjowui-tang(Taiyintiaowei-tang)(23) or placebo(18). After 12 weeks of treatment, we measured anthropometric factors(weight, height, waist circumference, BMI(body mass index) etc.), abdominal fat area by CT(computed tomography)scanning, serum lipid(total cholesterol, tryglyceride, HDL-cholesterol, LDL-cholesterol), blood lever of variety(AST, ALT, BUN, creatinine etc.). Adverse events also evaluated. Results : After 12 weeks of treatment mean weight, waist-circumference, total cholesterol, LDL-cholesterol and score of KEAT-26 were significant changed in Taeeumjowui-tang(Taiyintiaowei-tang). There were no serious adverse events in either groups. Conclusions : There were limited in this study that is conducted within a short period of 12 weeks. but its weight and WC(waist circumference), WHR(waist hip ratio), total cholesterol, LDL-cholesterol and score of KEAT-26 loss effect was significant and it had few adverse events.

Effect of Saengmaeg-san Extract on Xerostomia in Stroke Patients : A Double-Blind Randomized Controlled Study (중풍환자의 구강건조증에 대한 생맥산의 효과 : 무작위배정 이중맹검 연구)

  • Lee, Dae-Hyun;Han, Hyun-Jin;Kim, Lak-Hyung;Kang, Sei-Young;Jang, In-Soo
    • The Journal of Internal Korean Medicine
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    • v.32 no.4
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    • pp.542-549
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    • 2011
  • Objectives : The present study was made to evaluate the clinical effectiveness of Saengmaeg-san (生脈散) extract to treat xerostomia in stroke patients. Methods : The study design was a double-blind randomized controlled trial. Subjects were stroke patients with xerostomia. They were allocated to either the Saengmaeg-san (n=12) or placebo group (n=12). Saengmaeg-san extract or a placebo in similar opaque capsules was given three times a day for a week. The improvement of xerostomia was measured by the xerostomia-evaluating questionnaire, developed by the school of dentistry in Seoul National University, before baseline and one week later. Eleven of the Saengmaeg-san group and ten of the placebo group finished the trial and were analyzed. Paired samples t-test and Mann-Whitney test were applied to statistical analysis. Results : On three of the six questions, the Saengmaeg-san group improved significantly. On two of the six questions, the Saengmaeg-san group improved significantly more than the placebo group. On the other questions, the Saengmaeg-san group improved more than the placebo group, although significance was not reached. Conclusions : These results demonstrate that Saengmaeg-san extract is effective for treating xerostomia in stroke patients, and further studies should be conducted to provide more valuable information.

Analgesia After Subacromial Arthroscopy: Prospective Double-blind Study of Continuous Mixed Intra-bursal Infusion with Morphine and Bupivacaine and placebo (견봉하 관절경 수술 후 진통 작용: 모르핀과 국소마취제 혼합제와 위약의 점액낭 내 지속 주입에 대한 전향적 이중 맹검 연구)

  • Park Jin-Young;Lee Kwan-Woo;Kim Yun;Yoo Moon-Jib
    • Clinics in Shoulder and Elbow
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    • v.3 no.2
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    • pp.102-108
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    • 2000
  • The aim of this study is to determine if intra-bursal morphine and Bupivacaine mixed infusion provided useful analgesia after subacromial arthroscopic operation. At the end of the subacromial arthroscopy, continuous intra-bursal infusion catheter was inserted. In a double-blind randomized trial, Sixty patients were allocated to one of two groups: placebo group(n=30) received continuous saline infusion. Study group received mixed 5㎖ of 0.5% Bupivacaine, 2㎎ of morphine and 0.05㎖ of 1/1000 epinephrine as bolus and mixed solution of 40㎖ of 0.5% Bupivacaine and 8㎎ of morphine as maintenance dose with continuous infusion pump(0.5㎖ hourly). In the placebo group, two patients were discontinued due to leakage and catheter coming out each. Intensity of pain was evaluated preoperatively and postoperatively for 3 days by 10 graded visual analogue scale. Night pain, pain on motion, sleep disturbance, lying on painful shoulder and amounts of intramuscular pain killer were recorded. Analgesic effect for pain was cleared at 1st and 2nd postoperative day and there was less sleep disturbance for 3 days postoperatively in study group. There was no difference in pain on motion postoperatively. In study group, less pain killers were used in the first 48 hours postoperatively. The continuous intra-bursal infusion decreased perception of pain at resting stage and reduced supplemental analgesic requirement for 2 days postoperatively.

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