A series of animal models are used to investigate the anti-depression mechanism of flavonoids in scutellariae radix （SR） in vivo. Depression-like behavior in mice was studied after intraperitoneal administra- tion o...A series of animal models are used to investigate the anti-depression mechanism of flavonoids in scutellariae radix （SR） in vivo. Depression-like behavior in mice was studied after intraperitoneal administra- tion of SR. The results showed that SR administered to mice by the intraperitoneal route obviously short- ened the duration in the tail suspension test and the forced swimming test, aggravated the symptoms of eyelid ptosis, akinesia, and mortality caused by reserpine, prolonged climbing times, affected the condi- tioned place preference, and increased sugar consumption in mice. However the SR did not affect the head twitches induced by 5-HTP, locomotor activity in mice, the toxicity of yohimbine, and the body temperature decrease caused by high dosage of apomorphine. The tests show that SR has some anti-depression effect related to the dopamine system. Furthermore another anti-depression mechanism was possible that could affect the mechanism of brain reward, bring positive reinforcement, and increase the sensitivity to euphoria in mice.展开更多
建立了超高效液相色谱-四极杆飞行时间质谱法（UPLC-Q-TOF-MS）对小鼠大脑中的多巴胺（DA）、5-羟色氨（5-HT）、二羟基苯乙酸（DOPAC）和高香草酸（HVA）4种单胺类神经递质的含量进行同时测定。样品以30%乙醇溶液（甲酸调至p H 5.0）...建立了超高效液相色谱-四极杆飞行时间质谱法（UPLC-Q-TOF-MS）对小鼠大脑中的多巴胺（DA）、5-羟色氨（5-HT）、二羟基苯乙酸（DOPAC）和高香草酸（HVA）4种单胺类神经递质的含量进行同时测定。样品以30%乙醇溶液（甲酸调至p H 5.0）匀浆处理后,冷冻离心,过滤。在优化色谱-质谱条件下,采用ESI和APCI复合源,正/负离子扫描方式进行数据采集。4种单胺类神经递质在0.5-1 000μg/L范围内呈良好线性关系,相关系数（r）大于0.999 3,方法的检出限为0.5-5.0μg/L,平均回收率为93.3%-101.8%,相对标准偏差为1.1%-3.3%。该方法具有操作简便、高效快速、回收率良好、灵敏度高、重现性好和准确度高等优点,可用于小鼠脑组织内4种单胺类神经递质的含量测定。展开更多
基金Supported by the National Natural Science Foundation of China(Nos. 90713043, 30801523, and 30973896)the Key Technologies Research and Development Program of the Eleventh Five-Year Plan of China (Nos. 2006BAI08B03-09 and 2006BAI14B05)China’s Post-doctoral Science Fund (No. 20080440418)
文摘A series of animal models are used to investigate the anti-depression mechanism of flavonoids in scutellariae radix （SR） in vivo. Depression-like behavior in mice was studied after intraperitoneal administra- tion of SR. The results showed that SR administered to mice by the intraperitoneal route obviously short- ened the duration in the tail suspension test and the forced swimming test, aggravated the symptoms of eyelid ptosis, akinesia, and mortality caused by reserpine, prolonged climbing times, affected the condi- tioned place preference, and increased sugar consumption in mice. However the SR did not affect the head twitches induced by 5-HTP, locomotor activity in mice, the toxicity of yohimbine, and the body temperature decrease caused by high dosage of apomorphine. The tests show that SR has some anti-depression effect related to the dopamine system. Furthermore another anti-depression mechanism was possible that could affect the mechanism of brain reward, bring positive reinforcement, and increase the sensitivity to euphoria in mice.
基金supported by the National Natural Science Foundation of China(No.3140100081430044)+2 种基金Youth Medicine Program of the People’s Liberation Army of China(No.13QNP148)the National Basic Research Development Program(973 Program)of China(No.2012CB518200)Integrated Drug Discovery Technology Platform of National Science and Technology Major Projects for"Major New Drugs Innovation and Development"(No.2012ZX09J12201-005)
文摘建立了超高效液相色谱-四极杆飞行时间质谱法（UPLC-Q-TOF-MS）对小鼠大脑中的多巴胺（DA）、5-羟色氨（5-HT）、二羟基苯乙酸（DOPAC）和高香草酸（HVA）4种单胺类神经递质的含量进行同时测定。样品以30%乙醇溶液（甲酸调至p H 5.0）匀浆处理后,冷冻离心,过滤。在优化色谱-质谱条件下,采用ESI和APCI复合源,正/负离子扫描方式进行数据采集。4种单胺类神经递质在0.5-1 000μg/L范围内呈良好线性关系,相关系数（r）大于0.999 3,方法的检出限为0.5-5.0μg/L,平均回收率为93.3%-101.8%,相对标准偏差为1.1%-3.3%。该方法具有操作简便、高效快速、回收率良好、灵敏度高、重现性好和准确度高等优点,可用于小鼠脑组织内4种单胺类神经递质的含量测定。
