Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, Pakistan.
Department of Pharmacy, Abdul Wali Khan University, Mardan, Pakistan.
Drug Dev Res. 2018 Jun;79(4):184-197. doi: 10.1002/ddr.21435.
In this study different derivatives of ferrocene-incorporated acyl ureas and homoleptic cadmium carboxylates were investigated for potential anticonvulsant, anxiolytic and sedative properties, using in-silico and in-vivo techniques. The molecular docking studies reveled that ferrocene compounds derivative 1-(4-bromobenzoyl)-3-(4-ferrocenylphenyl) urea (PB1) and cadmium compounds derivative bis (diphenylacetato) cadmium (II) (DPAA) exhibit binding affinities against various neurotherapeutic molecular targets involved in epilepsy, anxiety, and sedation. Both PB1 and DPAA showed high binding affinities against protein targets like mammalian shaker voltage dependent potassium channel beta subunit complex, calcium release-activated calcium channel, sodium channel 2A inactivation gate, human sodium/hydrogen exchanger regulatory factor, and gamma amino butyric acid A receptor associated protein. PB1 (2-10 mg/kg) and DPAA (1-5 mg/kg) delayed onset time of pentylenetetrazole-induced myoclonic jerks and tonic-clonic seizures in mice while decreased duration of tonic-clonic seizures, determining the anticonvulsant effect of these compounds. PB1 and DPAA (0.5-1 mg/kg) exhibited anxiolytic effect by increasing time spent and number of animals entries into open arms, while decreasing time spent in dark compartment. Furthermore, PB1 (0.5-1 mg/kg) and DPAA (0.1-1 mg/kg) reduced onset time of sleep and increased duration time of sleep in mice, showing sedative effect. Taken together, our results indicate that aforementioned derivatives of ferrocene and cadmium are potent neurotherapeutic agents possessing anticonvulsant, anxiolytic and sedative properties.
在这项研究中,我们研究了不同的二茂铁酰基脲衍生物和同型镉羧酸盐,以期发现它们在抗惊厥、抗焦虑和镇静方面的潜在应用,为此我们使用了计算机模拟和体内实验技术。分子对接研究表明,二茂铁化合物衍生物 1-(4-溴苯甲酰基)-3-(4-二茂铁基苯基)脲(PB1)和镉化合物衍生物二(二苯乙酸根合)镉(II)(DPAA)对涉及癫痫、焦虑和镇静的各种神经治疗分子靶标具有结合亲和力。PB1 和 DPAA 对蛋白靶标表现出很高的结合亲和力,如哺乳动物 Shaker 电压依赖性钾通道β亚基复合物、钙释放激活钙通道、钠通道 2A 失活门、人钠/氢交换调节因子和γ-氨基丁酸 A 受体相关蛋白。PB1(2-10mg/kg)和 DPAA(1-5mg/kg)延迟戊四氮诱导的小鼠肌阵挛性抽搐和强直-阵挛性发作的发作时间,同时减少强直-阵挛性发作的持续时间,从而确定了这些化合物的抗惊厥作用。PB1 和 DPAA(0.5-1mg/kg)通过增加进入开放臂的时间和动物数量来表现出抗焦虑作用,同时减少在黑暗隔间中的时间。此外,PB1(0.5-1mg/kg)和 DPAA(0.1-1mg/kg)减少了睡眠发作时间并增加了小鼠的睡眠时间,显示出镇静作用。综上所述,我们的研究结果表明,上述二茂铁和镉的衍生物是具有抗惊厥、抗焦虑和镇静作用的潜在神经治疗药物。