(R)-2-(3-nitro-phenyl)-propionic acid | 21762-10-7

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 苯丙酸
• 英文名称: (R)-2-(3-nitro-phenyl)-propionic acid
• 英文别名: (R)-2-(3-Nitro-phenyl)-propionsaeure；(2R)-2-(3-nitrophenyl)propanoic acid
• CAS: 21762-10-7；26911-08-0；26911-09-1
• 化学式: C₉H₉NO₄
• 分子量: 195.175
• InChiKey: MSCZZRXBIBUPKG-ZCFIWIBFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  83.1
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (R)-2-(3-nitro-phenyl)-propionic acid 在 甲醇 、 铂 作用下， 生成 (R)-2-(3-amino-phenyl)-propionic acid
  参考文献：
  名称：

  99mTc-sestamibi muscle scintigraphy to assess the response to neuromuscular electrical stimulation of normal quadriceps femoris muscle

  摘要：

  Objectives: Neuromuscular electrical stimulation (NMES) is widely used for improving muscle strength by simultaneous contraction in the prevention of muscle atrophy. Although there exist many clinical methods for evaluating the therapeutic response of muscles, Tc-99m-sestamibi which is a skeletal muscle perfusion and metabolism agent has not previously been used for this purpose. The aim of our work was to ascertain whether Tc-99m-sestamibi muscle scintigraphy is useful in the monitoring of therapeutic response to NMES in healthy women.Methods: The study included 16 women aged between 21 and 45, with a mean age of 32.7 +/- 6.4. Both quadriceps femoris muscles (QFM) of each patient were studied. After randomization to remove the effect of the dominant side, one QFM of each patient was subjected to the NMES procedure for a period of 20 days. NMES was performed with an alternating biphasic rectangular current, from a computed electrical stimulator daily for 23 minutes. After measurement of skinfold thickness over the thigh, pre- and post-NMES girth measurements were assessed in centimeters. Sixty minutes after injections of 555 MBq Tc-99m-sestamibi, static images of the thigh were obtained for 5 minutes. The thigh-to-knee uptake ratio was calculated by semiquantitative analysis and normalized to body surface area (NUR = normalized uptake ratio).Results: The difference between the pre and post NMES NUR values was Significant (1.76 +/- 0.31 versus 2.25 +/- 0.38, p = 0.0000). The percentage (%) increase in NUR values also well correlated with the % increase in thigh girth measurements (r = 0.89, p = 0.0000).Conclusion: These results indicated that Tc-99m-sestamibi muscle scintigraphy as a new tool may be useful in evaluating therapeutic response to NMES.

  DOI：

  10.1007/bf02988252
• 作为产物：
  描述：

  (RS)-2-(3-硝基苯基)丙酸 生成 (R)-2-(3-nitro-phenyl)-propionic acid
  参考文献：
  名称：

  99mTc-sestamibi muscle scintigraphy to assess the response to neuromuscular electrical stimulation of normal quadriceps femoris muscle

  摘要：

  Objectives: Neuromuscular electrical stimulation (NMES) is widely used for improving muscle strength by simultaneous contraction in the prevention of muscle atrophy. Although there exist many clinical methods for evaluating the therapeutic response of muscles, Tc-99m-sestamibi which is a skeletal muscle perfusion and metabolism agent has not previously been used for this purpose. The aim of our work was to ascertain whether Tc-99m-sestamibi muscle scintigraphy is useful in the monitoring of therapeutic response to NMES in healthy women.Methods: The study included 16 women aged between 21 and 45, with a mean age of 32.7 +/- 6.4. Both quadriceps femoris muscles (QFM) of each patient were studied. After randomization to remove the effect of the dominant side, one QFM of each patient was subjected to the NMES procedure for a period of 20 days. NMES was performed with an alternating biphasic rectangular current, from a computed electrical stimulator daily for 23 minutes. After measurement of skinfold thickness over the thigh, pre- and post-NMES girth measurements were assessed in centimeters. Sixty minutes after injections of 555 MBq Tc-99m-sestamibi, static images of the thigh were obtained for 5 minutes. The thigh-to-knee uptake ratio was calculated by semiquantitative analysis and normalized to body surface area (NUR = normalized uptake ratio).Results: The difference between the pre and post NMES NUR values was Significant (1.76 +/- 0.31 versus 2.25 +/- 0.38, p = 0.0000). The percentage (%) increase in NUR values also well correlated with the % increase in thigh girth measurements (r = 0.89, p = 0.0000).Conclusion: These results indicated that Tc-99m-sestamibi muscle scintigraphy as a new tool may be useful in evaluating therapeutic response to NMES.

  DOI：

  10.1007/bf02988252

文献信息

• 99mTc-sestamibi muscle scintigraphy to assess the response to neuromuscular electrical stimulation of normal quadriceps femoris muscle
  作者：Yeşim Pekindil、Ali Sarikaya、Murat Birtane、Gökhan Pekindil、Ahmet Salan

  DOI：10.1007/bf02988252

  日期：2001.8

  Objectives: Neuromuscular electrical stimulation (NMES) is widely used for improving muscle strength by simultaneous contraction in the prevention of muscle atrophy. Although there exist many clinical methods for evaluating the therapeutic response of muscles, Tc-99m-sestamibi which is a skeletal muscle perfusion and metabolism agent has not previously been used for this purpose. The aim of our work was to ascertain whether Tc-99m-sestamibi muscle scintigraphy is useful in the monitoring of therapeutic response to NMES in healthy women.Methods: The study included 16 women aged between 21 and 45, with a mean age of 32.7 +/- 6.4. Both quadriceps femoris muscles (QFM) of each patient were studied. After randomization to remove the effect of the dominant side, one QFM of each patient was subjected to the NMES procedure for a period of 20 days. NMES was performed with an alternating biphasic rectangular current, from a computed electrical stimulator daily for 23 minutes. After measurement of skinfold thickness over the thigh, pre- and post-NMES girth measurements were assessed in centimeters. Sixty minutes after injections of 555 MBq Tc-99m-sestamibi, static images of the thigh were obtained for 5 minutes. The thigh-to-knee uptake ratio was calculated by semiquantitative analysis and normalized to body surface area (NUR = normalized uptake ratio).Results: The difference between the pre and post NMES NUR values was Significant (1.76 +/- 0.31 versus 2.25 +/- 0.38, p = 0.0000). The percentage (%) increase in NUR values also well correlated with the % increase in thigh girth measurements (r = 0.89, p = 0.0000).Conclusion: These results indicated that Tc-99m-sestamibi muscle scintigraphy as a new tool may be useful in evaluating therapeutic response to NMES.