N-(4-chloro-phenyl)-N'-(4-nitro-phenyl)-benzamidine

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: N-(4-chloro-phenyl)-N'-(4-nitro-phenyl)-benzamidine
• 英文别名: N-(4-Chlor-phenyl)-N'-(4-nitro-phenyl)-benzamidin；N-(4-chlorophenyl)-N'-(4-nitrophenyl)benzenecarboximidamide
• 化学式: C₁₉H₁₄ClN₃O₂
• 分子量: 351.792
• InChiKey: ZSRNFYSIIQEHFU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.1
• 重原子数：
  25
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  70.2
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  N-(4-氯-苯基)-苯酰胺 、 4-硝基苯胺 在 五氯化磷 、 苯 作用下， 生成 N-(4-chloro-phenyl)-N'-(4-nitro-phenyl)-benzamidine
  参考文献：
  名称：

  Gender-Related Differences in the Rates of Age Associated Thymic Atrophy

  摘要：

  与年龄相关的胸腺萎缩已被证明与雄性小鼠在胸腺内T细胞发育途径的早期阶段中β链的重排问题有关。在这项研究中，发现雌性小鼠的胸腺萎缩发生速度与雄性小鼠不同。在9个月龄时，与雄性小鼼相比，雌性小鼠的胸腺中细胞数量显著更多，主要差异在于CD4⁺CD8⁺人群中。9个月龄时，雌性小鼠的胸腺中这些细胞的数量是雄性小鼠的两倍。对9个月龄时的CD4⁺CD8⁺细胞的分析表明，相比于雄性，雌性的这些细胞中表达CD3水平更高，表明在雌性中更多的这些细胞产生了成功的αβTCR配对。在F5转基因小鼠中，对比9个月龄时CD4⁺CD8⁺人群，绝对数量没有显著差异。这些结果表明，此时的性别差异是由于在表达可选择的CD4⁺CD8⁺人群中的TCR α链之前，与雌性小鼠相比，雄性小鼠允许的分裂较少。这种性别差异不是由于睾丸激素的作用，也不太可能是由于雌激素水平的差异。这种差异的潜在机制可能与外周T细胞对发育中胸腺细胞人群的调节反馈有关。在不同胸腺亚群细胞数量方面的年龄相关变化导致了这样的可能性，即女性的潜在免疫库可能比男性在晚年时更大。

  DOI：

  10.1155/2001/17064

文献信息

• Gender-Related Differences in the Rates of Age Associated Thymic Atrophy
  作者：Richard Aspinall、Deborah Andrew

  DOI：10.1155/2001/17064

  日期：——

  Age associated thymic atrophy has been shown to be linked to problems with rearrangement of the β chain of the T cell receptor (TCR) in male mice during the early phases of the intrathymic T cell developmental pathway. In this study, thymic atrophy in female mice was found to occur at a different rate than in male mice. At 9 months of age there was a significantly greater number of cells in the thymus of female mice compared with male mice, with the major difference found in the CD4⁺CD8⁺populations. The thymii of female mice at 9 months of age contained double the number of these cells compared with male mice. Analysis of the CD4⁺CD8⁺cells at 9 months of age demonstrated increased numbers of cells expressing higher levels of CD3 in females compared with males indicating that in females more of these cells were producing successful αβTCR pairings. In F5 transgenic mice comparison of the CD4⁺CD8⁺population revealed no significant difference in their absolute numbers at 9 months of age. These results indicate that the gender differences at this time point were due to fewer permitted divisions prior to the expression of a selectable TCR α chain within the CD4⁺CD8⁺populations in male compared with female mice. This gender difference was not due to the action of testosterone and unlikely to be due to differences in the level of oestrogen. The potential mechanisms of this difference may be related to a regulatory feedback of peripheral T cells on the developing thymocyte populations. Such age related changes in the numbers of cells within distinct thymic subpopulations leads to the possibility that the potential repertoire in females is greater than in males later in life.

  与年龄相关的胸腺萎缩已被证明与雄性小鼠在胸腺内T细胞发育途径的早期阶段中β链的重排问题有关。在这项研究中，发现雌性小鼠的胸腺萎缩发生速度与雄性小鼠不同。在9个月龄时，与雄性小鼼相比，雌性小鼠的胸腺中细胞数量显著更多，主要差异在于CD4⁺CD8⁺人群中。9个月龄时，雌性小鼠的胸腺中这些细胞的数量是雄性小鼠的两倍。对9个月龄时的CD4⁺CD8⁺细胞的分析表明，相比于雄性，雌性的这些细胞中表达CD3水平更高，表明在雌性中更多的这些细胞产生了成功的αβTCR配对。在F5转基因小鼠中，对比9个月龄时CD4⁺CD8⁺人群，绝对数量没有显著差异。这些结果表明，此时的性别差异是由于在表达可选择的CD4⁺CD8⁺人群中的TCR α链之前，与雌性小鼠相比，雄性小鼠允许的分裂较少。这种性别差异不是由于睾丸激素的作用，也不太可能是由于雌激素水平的差异。这种差异的潜在机制可能与外周T细胞对发育中胸腺细胞人群的调节反馈有关。在不同胸腺亚群细胞数量方面的年龄相关变化导致了这样的可能性，即女性的潜在免疫库可能比男性在晚年时更大。