查询词典 lethal dose

Couclusion low dose ionizing radiation can reverse radiogenic tumor multidrug resistance with high dose.

低剂量辐射可以逆转大剂量辐射所致的多药耐药性。

Objective To study the pharmacokinetics of arsenic from Realgar in rats and tissue distribution after single dose and multiple dose of oral administration.

目的 研究雄黄中的砷在大鼠体内的药物动力学和组织分布。

Hold treatment for 72 hours and then reinstitute starting at a lower dose and steadily increase the dose.

可以暂停治疗72小时，再从较低剂量开始，然后慢慢增加剂量。

The depth of central-axis percent dose Rx (except R100) and practical range, Rp, for small field electron beams can be calculated by the proposed empirical formula: Rx = Rxo ×,where Rxo R po are the broad beam percentage dose depth and practical range respectively; r is the small field cutout side when it is less than the maximum lateral scatter equivalent range, and m is he exponent term relative to the decreasing curvature.

小照野电子射束中心轴百分剂量深度，Rx（R100除外），及穿透深度，Rp，可以用本文提出的经验公式：Rx = Rxo×计算求得，其中Rxo及 Rpo分别为宽射束百分剂量深度及实际穿透深度；r为边长小於最大侧散射等效范围的小照野边长；m值为与下降曲度有关的指数项。

The study concluded:(1)three-dose IM revaccination could keep protective antibody and more importantly immunologic memory for a long time and play an important role for prevention from HBV infection in non-responders, though its efficacy could not reach the level of primary vaccination in responders;(2)although low-dose ID revaccination could induce a high proportion of non-responders to respond to vaccine, its long-term efficacy was significantly poor compared with IM revaccination with the same number of injections.

结果证实：无应答者3针常规剂量肌肉复种远期效果虽然达不到应答者初种的水平，但确能有效维持保护水平抗体、特别是免疫记忆的长期存在，在预防HBV感染方面能发挥重要的免疫保护作用；小剂量皮内复种虽能诱导高的抗体应答率，但远期效果明显不如相同针次常规剂量肌肉复种。

The dose-response-curve of isoprenaline-induced tachycardia shifted rightward with a dose-dependent manner and the mean arterial blood pressure decreased at the same time.

可呈剂量依赖性地使异丙肾上腺素诱发家兔心率加快的量效曲线右移，同时降低血压。

Independent factors associated with radiation dose were patient weight (relative effect on DLP, 5%; 95% confidence interval , 4%-6%), absence of stable sinus rhythm (10%; 95% CI, 2%-19%), scan length (5%; 95% CI, 4%-6%), electrocardiographically controlled tube current modulation (–25%; 95% CI,–23% to –28%; applied in 73% of patients), 100-kV tube voltage (–46%; 95% CI,–42% to –51%; applied in 5% of patients), sequential scanning (–78%; 95% CI,–77% to –79%; applied in 6% of patients), experience in cardiac CT (–1%; 95% CI,–1% to 0%), number of CCTA s per month (0%; 95% CI, 0%-1%), and type of 64-slice CT system (for highest vs lowest dose system, 97%; 95% CI, 88%-106%).

与放射剂量有关的独立因子有：病人的体重（对DLP的相对影响，占5%）；稳定窦性节律的阙如（占10%的影响）；扫描的长度（扫描长度增加1厘米相当于DLP增加5%）；应用心电图控制的管电流调制（导致DLP降低25%；用于73%的患者身上）；100-kV 管电压（使DLP降低46%，应用于5%的患者）；序贯扫描（降低78%；应用于6%的病人）；对心脏CT的经验（降低1%）；每月CCTA的数量；64层CT系统的类型

Methods seventy-two 15-week-old sd rats were divided into six groups,included control group and five ovariectomized model groups.the model groups were fed with different-dose lycopene［10,15,20 mg/］ for 12weeks.then related indexes including length bone mineral density,bone mineral,serum estradiol,sertum alp and uterus index were analyzed.results compared with model group,three different dose groups and nilestriol［1.05mg/］ group showed increased bone mineral density,bone mineral,serum estradiol and uterus index,but decreased serum alp (p.05).conclusion as a female sex hormone-like component,lycopene may ameliorate the bone quality and inhibit osteoporosis in ovariectomized rat.

将72只15周龄sd大鼠随机分为6组，空白组做假手术，其余5组做卵巢切除术，术后用药12周后处死，测定右侧股骨骨密度、骨矿含量、血清雌二醇、碱性磷酸酶含量及子宫湿重。结果番茄红素高［20mg/］、中［15mg/］、低剂量组［10mg/］、尼尔雌醇组［1.05mg/kg·bw］能对抗骨密度、骨矿含量、血清雌二醇的下降、血清碱性磷酸酶的升高，与模型组比较，p.05；番茄红素各剂量组、尼尔雌醇组能对抗子宫指数的减轻，与模型组比较，p.05。结论番茄红素可以改善骨质量，抑制大鼠去卵巢骨质疏松的发生。具有类似雌激素的效应。

Results1. Content of arsenic in serum raises with dose adding, time of pouring medicine and time of blood sampling prolonging. Thin layer chromatography indicates that there is toadfish in medicine serum of Liu-Shen-Wan.2. The suppressive rate of medicine serum of Liu-Shen-Wan on HL-60 cell raises with adding of dose and time of pouring medicine and prolonging of blood sampling.3. Gimsa dying assay, in situ end-labeling method and flow cell machine all exhibits: HI-60 cells dealed with Liu-Shen-Wan medicine-serum present typical apoptosis morphology.

结果：1 血清砷含量随着给药剂量、给药天数增加和采血时间的延长而升高；薄层色谱表明六神丸含药血清中有蟾酥成分。2 六神丸含药血清对白血病细胞的抑制率，随给药剂量、天数增加和采血时间的延长而升高3 吉姆萨染色、流式细胞仪检测、原位末端标记检测均证明六神丸含药血清能诱导HL-60白血病细胞凋亡。

Calculated value of radial dose function, g, is in the rang of 0.1-10.0 cm at transverse axis. Anisotropy function, F, is calculated in 0°-90° of θ with increment of 10° and 0.5-9.0 cm of r with increment of 1 cm. Empiric equations are acquired for radial dose function and anisotropy function by curve fitting.

在源中垂轴0.1~10.0cm距离范围内计算径向剂量函数的数值，在角度0°~90°（10°间隔）、距离0.5~9.0cm（1cm间隔）范围内计算各向异性函数的数值，最后对径向剂量函数和各向异性函数进行拟合，得到实用性较强的经验公式。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。