1. 无效对照剂：然而,到了50年代后期,美国所进行的大规模试验表明,镇静剂如巴比妥类(barbiturates)在减轻精神分裂症状时并没有比无效对照剂(placebo)更好,而氯丙嗪和其他同类药物如吩噻嗪(phenothiazine)却是持续有效的.

2. 宽心剂：研究发现,面临糖尿病风险的人们改变生活型态,结果发展成为糖尿病的机率比仅服用宽心剂(placebo)却仍不改变作息的人下降五八%.此外,「内科医学年鉴」也发表类似研究结果,发现多食红肉,高脂牛乳...

1. This conclusion was drawn by a group of Cochrane researchers after they studied data from six trials that compared the effects of giving people either varenicline or a placebo.
    这一结论是以一组阁麟研究员后，他们研究的数据来自6个审判相比的影响，让人们要么varenicline或安慰剂。

2. In order to explore the effects of maternal iodine deficiency during pregnancy on the nervous system of the infants. an epidemiological survey of pregnant women in the endemic region was carried out. They were divided into three groups: treatment group. placebo group and normal group.
    为了进一步探讨孕妇缺碘对婴儿神经系统的伤害，本研究通过流行病学调查对缺碘地区孕妇作了筛选，分成补碘组、安慰剂组和正常组，然后采取双盲对照法对其所生育的婴儿（月龄2～10个月）开展脑干听觉诱发电位检测。

3. METHODS: We randomly assigned 5518 patients with type 2 diabetes who were being treated with open-label simvastatin to receive either masked fenofibrate or placebo.
    55182例接受辛伐他汀开放试验治疗的2型糖尿病患者随机分为两组，一组接受设盲的非诺贝特，另一组接受安慰剂。

4. Methods We randomly assigned 5518 patients with type 2 diabetes who were being treated with open-label simvastatin to receive either masked fenofibrate or placebo.
    我们随机入选了5518位2型糖尿病患者，将入选患者均接受辛伐他汀治疗，再根据有无合并用药随机单盲分为非诺贝特组和安慰剂组。

5. Participants were randomized to receive either a placebo or one of three doses of ginger supplement: 0.5 grams, 1 gram or 1.5 grams for three days before the start of chemo and three days after for the next two cycles.
    参与者在开始化疗的前三天以及接下来的两个周期的后三天随机接受空白对照剂或者 0.5 克、1 克或 1.5 克三种剂量姜补充剂中的一种。

6. 好好学单词·英语单词

6. Methods:①The corneas in eight normal rabbits were scratched, and then treated with a combination of topical oxybuprocaine and bupivacaine drops to one eye and placebo to the other eye to observe corneal epithelial wound healing.②80 patients with the similar diopter in both eyes were performed photorefractive keratectomy and used soft contact lens. To observe postoperative pain degree and speed of corneal epithelial wound healing, a combination of topical oxybuprocaine and bupivacaine drops was used to one eye and placebo to the other eye.
    ①实验部分：将8只健康家兔双眼角膜上皮刮去，设左右眼对照，分别滴奥布卡因-布比卡因混合液与生理盐水，观察角膜上皮的愈合速度；②临床部分：选择双侧眼屈光状态基本相等的PRK手术病人80名，术后配戴角膜接触镜，设左右眼对照，分别滴奥-布混合液与生理盐水，观察术后疼痛程度以及角膜上皮愈合速度。

7. Their trial included 347 healthy volunteers randomized to azithromycin, 500 mg q. d. for 3 days; clarithromycin, 500 mg b. i. d. for 7 days; or to two matching placebo groups.
    他们的试验对象是347个健康自愿者，随机化被分配给500mg 的 axithromycin 每天服用一次，连服三天；或者500mg 的 clarithromycin 每天服二次，连服7天；这两种人群安排了配对的安慰剂对照组。

8. placebo

8. The company's next-generation antidepressants were faring badly, too, doing no better than placebo in seven out of 10 trials.
    而该公司的下一代抗抑郁药研发进展也很不乐观，在70%的试验中表现不如安慰剂。

9. Participants were stratified by risk status and were randomly assigned to receive daily supplementation with 1 g of vitamin C and 400 IU of vitamin E, or placebo.
    参与者们根据其风险状态区分，且被随机分派接受每日补充1 gm的维他命C及400 IU的维他命E或是安慰剂。

10. The 12-week, randomized, double-blind, placebo-controlled trial consisted of 48 men and women, 40 to 75 years of age, with noninsulin-dependent type II diabetes, taking anti-diabetic medication with metformin, sulfonylurea and glitazones.
    为期12周，随机，双盲，安慰剂对照试验构成的48男性和女性，40至75岁，与noninsulin依赖II型糖尿病，采取抗糖尿病药物二甲双胍，磺酰脲类和

11. In the Sudden Cardiac Death in Heart Failure Trial, 2521 patients with moderate heart failure were randomized to receive amiodarone, implanted cardioverter-defibrillators, or placebo.
      在SCD-HeFT研究中，共纳入中等程度的心力衰竭患者2521人，这些病人随机分组进入胺碘酮组，ICDS组或安慰剂组。

12. In the Sudden Cardiac Death in Heart Failure Trial, 2521 patients with moderate heart failure were randomized to receie amiodarone, implanted cardioerter-defibrillators, or placebo.
      在SCD-HeFT研究中，共纳入中等程度的心力衰竭患者2521人，这些病人随机分组进入胺碘酮组，ICDS组或安慰剂组。

13. Those receiving acetyl-L-carnitine experienced significantly reduced symptoms of depression compared to those receiving placebo.
      那些得到乙酰- L -肉碱经历抑郁症的症状明显减少，相对于安慰剂组。

14. Methods Bacterial plaque index of submaxilla premolar, gum bleeding index and probing depth of rhubarb and indomethecin rinse group and placebo group were measured at 1 week before and 2, 4, 8 weeks after placing orthodontic appliances.
      方法将60例需做正畸治疗的患者分为2组，A组和B组患者戴入矫治器前1周、戴入后2周、4周、8周下颌前磨牙菌斑指数、牙龈出血指数、牙周探诊深度。

15. Only by subtracting the improvement in a placebo control group could the actual value of the drug be calculated.
      只有去掉安慰剂对照组的效果才能真正来衡量药物的实际价值。

16. The studywas limited in that itfollowed a relatively small number of children, and in that it was a meta-analysis with no placebo control group.
      这项研究是有限的，它遵循的一个比较小的儿童人数，并认为这是一个汇总分析，无安慰剂对照组。

17. placebo什么意思

17. Criteria for inclusion of treatment trials were randomization and placebo control.
      治疗试验入选的标准包括随机选择和安慰剂对照。

18. DESIGN: Randomized, single blind and placebo control prospective study based on patients.
      设计：以患者为研究对象，随机、单盲、安慰剂对照的前瞻性研究。

19. All patients were random divided into the NAC treatment group and placebo...
      患者按1：1的比例随机分成NAC治疗组和安慰剂对照组。

20. placebo的近义词

20. In 2006, the results of three large, double-blind, placebo-controlled trials of a grass-pollen tablet for sublingual immunotherapy (which included more than 1600 patients)showed a 35 to 40% reduction in clinical symptoms in the first year of treatment and a similar reduction in the use of rescue medication.
      结果显示，1600例患者中，有35%至40％的患者治疗一年后，其临床症状得到明显缓解。

1. （用于测试新药效力的）无效对照剂；（用以安慰想象自己得病的人的）安慰剂
    A placebo is a substance with no effects that a doctor gives to a patient instead of a drug. Placebos are used when testing new drugs or sometimes when a patient has imagined their illness.

1. (Roman Catholic Church) vespers of the office for the dead

2. an innocuous or inert medication
    given as a pacifier or to the control group in experiments on the efficacy of a drug