Ahmad Md Sultan, Ahmad Sheeba, Ali Afsar, Afzal Mohammad
Department of Zoology, Shibli National (PG) College, Azamgarh, Uttar Pradesh, India.
Department of Zoology, D.S. College, Aligarh, Uttar Pradesh, India.
Adv Biomed Res. 2016 May 30;5:92. doi: 10.4103/2277-9175.183140. eCollection 2016.
The use of medicinal plants in modern medicine for the prevention and treatment of cancer is an important aspect. For this reason, it is important to identify antitumor promoting agents present in medicinal plants commonly used by the human population.
We used in vivo and in vitro methods using chromosomal aberrations (CAs), sister chromatid exchange (SCE) and replication index (RI) as markers, exposed by methyl methanesulfonate (MMS) as well as alcoholic extract of Alstonia scholaris in five increasing concentrations (200, 250, 300, 350 and 400 mg/kg body weight for in vivo and 150, 200, 250 and 300 μg/ml of culture) and of three different durations of 24, 48 and 72 h in the presence as well absence of S9 mix.
Extracts of Alstonia reduces the total aberrant cells ranges from 10.0% to 41.84% and frequencies of aberration in the aberrant cells ranges from 220 to 124 against 290 aberrations causes due to MMS in vivo. Similarly in the in vitro, it reduces CAs (39.62%, 32.83%, and 38.48%) and (45.31%, 44.46%, and 38.34%) at 24, 48, and 72 h of exposure respectively; in the absence as well as presence of liver S9 fraction. It also reduces SCE from 7.70 to 4.20 per cell and enhances RI from 1.45 to 1.64.
Extracts of Alstonia significantly reduces the number of aberrant cells and frequency of aberration per cell at each concentration and duration of exposure in vivo; and CAs and SCE in vitro and enhances RI.
药用植物在现代医学中用于预防和治疗癌症是一个重要方面。因此,识别人类常用药用植物中存在的抗肿瘤促进剂很重要。
我们采用体内和体外方法,以染色体畸变(CAs)、姐妹染色单体交换(SCE)和复制指数(RI)为指标,用甲基磺酸甲酯(MMS)以及五种递增浓度(体内为200、250、300、350和400mg/kg体重,体外培养为150、200、250和300μg/ml)的鸡骨常山醇提取物进行处理,并在有和没有S9混合液的情况下处理24、48和72小时这三种不同时长。
鸡骨常山提取物使体内异常细胞总数从10.0%降至41.84%,异常细胞中的畸变频率从220降至124,而MMS在体内导致290个畸变。同样在体外,在24、48和72小时暴露时,无论有无肝脏S9组分,它分别使CAs降低(39.62%、32.83%和38.48%)以及(45.31%、44.46%和38.34%);它还使每个细胞的SCE从7.70降至4.20,并使RI从1.45提高到1.64。
鸡骨常山提取物在体内各浓度和暴露时长下均显著降低异常细胞数量和每个细胞的畸变频率;在体外降低CAs和SCE并提高RI。