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| 1 | Diarylheptanoid-myricanone isolated from ethanolic extract of Myrica cerifera shows anticancer effects on HeLa and PC3 cell lines:signalling pathway and drug-DNA interaction显示文摘OBJECTIVE:To test if myricanone(C_(21)H_(24)O_5),a cyclic diarylheptanoid,has anticancer effects on two different cancer cell lines HeLa and PC3.The present study was conducted with a note on the drug-DNA interaction and apoptotic signalling pathway.METHODS:Several studies like cytotoxicity,nuclear damage,annexin-V-fluorescein isothiocyanate(FITC)/propidium iodide(Pl)-labelled apoptotic assay and cell cycle arrest,immunoblot and reverse transcriptase-polymerase chain reaction(RT-PCR)were used following standard protocols.Circular dichroism(CD)spectroscopy was also done to evaluate whether myricanone effectively interacted with DNA to bring about conformational changes that could strongly inhibit the cancer cell proliferation.RESULTS:Myricanone showed a greater cytotoxic effect on PC3 cells than on HeLa cells.Myricanone promoted G_0/G_1 arrest in HeLa cells and S phase arrest in PC3 cells.Nuclear condensation and annexin V-FITC/PI studies revealed that myricanone promoted apoptotic cell death.CD spectroscopic data indicated that myricanone had an interaction with calf thymus DNA that changed DNA structural conformation.RT-PCR and immunoblot studies revealed that myricanone activated the apoptotic signalling cascades through down-regulation of transcription factors like nuclear factor-κB(NF-κB)(p65),and signal transducers and activators of transcription 3(STAT3);cell cycle regulators like cyclin D1,and survivin and other signal proteins like Bcl-2 and up-regulation of Bax,caspase-9 and caspase-3.CONCLUSION:Myricanone induced apoptosis in both types of cancer cells by triggering caspase activation,and suppression of cell proliferation by down-regulation of NF-κB and STAT3signalling cascades,which makes it a suitable candidate for possible use in the formulation of therapeutic agent for combating cancer. | Avijit Paul Sreemanti Das Jayeeta Das Asmita Samadder Kausik Bishayee Ratan Sadhukhan Anisur Rahman Khuda-Bukhsh | 2013 | Journal of Integrative Medicine2013，11，6： | 4 |
| 2 | 海南蒲桃提取物对L6细胞砷中毒缓解作用的体外实验(英文)显示文摘目的:研究海南蒲桃提取物对砷酸盐引起的L6骨骼肌细胞葡萄糖内稳态破坏及线粒体功能异常的缓解作用。方法:通过测量多个指标如丙酮酸激酶活性、葡糖激酶、线粒体膜电位等衡量细胞内葡萄糖水平及线粒体功能,并测量相关标志物的蛋白质及mRNA表达情况,如葡萄糖转运体4、胰岛素受体基质1、胰岛素受体基质2、葡糖激酶等以分析可能有关的信号通路。结果:海南蒲桃提取物能够通过葡萄糖转运体4通路改善砷中毒的L6细胞内诸多标志物的表达,使其正常化,与模型组相比差异有统计学意义。结论:海南蒲桃提取物对细胞砷中毒有明显的缓解作用,未来可考虑将其用于治疗砷中毒相关疾病如高血糖症等。 | Asmita Samadder Jayeeta Das Sreemanti Das Raktim Biswas Anisur Rahman Khuda-Bukhsh | 2012 | 中西医结合学报2012，10，11： | 2 |
| 3 | Psorinum 6× triggers apoptosis signals in human lung cancer cells显示文摘OBJECTIVE: To provide in vitro evidence of Psorinum treatment against cancer cells in a controlled study. METHODS: Effects of homeopathic Psorinum 6× on cell viability were initially determined in several cancer cell lines, including A549, Hep G2 and MCF-7, using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, and an ethanol 6× control. The cell line that exhibited highest inhibition was selected and used in the following experiments. A range of Psorinum 6× doses was used to explore treatment effects on cell cycle arrest, cell death(apoptosis), generation of reactive oxygen species(ROS) and change in mitochondrial membrane potential(MMP) using fl ow cytometry and fl uorescence microscopy, respectively. Expression of several signal proteins related to apoptosis and cell survival were quantified with Western blotting and confocal microscopy. Further, circular dichroism(CD) spectroscopy was used to determine possible drug-DNA interactions, as well as the induction of conformational changes. RESULTS: Treatment of cancer cell lines with Psorinum showed greater anticancer effects in A549 cells than in others. In A549 cells Psorinum treatment inhibited cell proliferation at 24 h after treatment, and arrested cell cycle at sub-G1 stage. It also induced ROS generation, MMP depolarization, morphological changes and DNA damage, as well as externalization of phosphatidyl serine. Further, increases in p53 expression, Bax expression, cytochrome c release, along with reduction of Bcl-2 level and caspase-3 activation were observed after Psorinum 6× treatment, which eventually drove A549 cells towards the mitochondria-mediated caspase-3-dependent pathway. CD spectroscopy revealed direct interaction of Psorinum with DNA, using calf thymus-DNA as target.CONCLUSION: Psorinum 6× triggered apoptosis in A549 cells via both up- and down-regulations of relevant signal proteins, including p53, caspase-3, Bax and Bcl-2. | Jesmin Mondal Asmita Samadder Anisur Rahman K huda-Bukhsh | 2016 | Journal of Integrative Medicine2016，14，2： | 1 |
| 4 | 变黑白头翁提取物降低亚砷酸盐对小鼠精细胞的毒性(英文)显示文摘目的:研究变黑白头翁提取物降低亚砷酸盐对小鼠精细胞毒性的作用。方法:给予实验小鼠亚砷酸钠(20mg/kg每日),并分别在第30、60、90天对小鼠进行检测。亚砷酸盐中毒小鼠被分为2组,其中一组给予变黑白头翁提取物(35mg/kg),另一组给予85%乙醇。通过检测小鼠精细胞凋亡标志蛋白CYP1A1、p53及caspase3的活性,确定细胞及DNA的损伤情况,并测定睾丸毒性标志物的水平。通过圆二色光谱仪及熔化温度数据检测变黑白头翁提取物与DNA的相互作用情况。结果:亚砷酸盐中毒小鼠的所有细胞凋亡标志蛋白及睾丸毒性标志物的水平均有所上升,而经变黑白头翁提取物治疗的小鼠上述各项指标均降低或恢复至正常水平。变黑白头翁提取物与DNA相互作用,引起了DNA结构和构象的变化。结论:变黑白头翁提取物可作为砷中毒引起的生殖功能损害的治疗药物给予研究和开发。 | Asmita Samadder Jayeeta Das Sreemanti Das Durba Das Arnab De Kakali Bhadra Anisur Rahman Khuda-Bukhsh | 2012 | 中西医结合学报2012，10，12： | 1 |
| 5 | Possible signaling cascades involved in attenuation of alloxan-induced oxidative stress and hyperglycemia in mice by ethanolic extract of Syzygium jambolanum:drug-DNA interaction with calf thymus DNA as target显示文摘 | Asmita Samadder D Chakraborty A | 2011 | Eur J Pharm Sci2011，44，3： | 1 |
| 6 | First report on chlorophyllin to protect mammalian and fish muscle cells from pesticide toxicity via activation of p53 and PARP显示文摘Objectives:Pesticide toxicity has become one of the major environmental menaces affecting all types of life forms of the ecosystem.Pesticides get washed off from agricultural fields into nearby water bodies and enter the aquatic organisms.Their bio-accumulated form finally reaches the human race,through consumption of pesticide infested aquatic animals,causing several physiological dysfunctions.Hence it becomes necessary to find a therapeutic cure/a preventive measure to stop the health hazard issues of pesticide.With this projection a search for a phyto-based-product was made whose primary objective would be to lower the pesticidal toxicity in fish and simultaneously in the human race.Methods:In this study we tried to check whether the phyto-chemical,Chlorophyllin(CHL),known for its anti-genotoxic,anti-oxidant activities,could render any kind of protection against Cypermethrin(CM)induced-toxicity in fish model and mammalian cell line L6.Both the model L6 and fish were pre-treated with CHL prior to exposure of CM.Different scientific parameters like%cellular cytotoxicity,reactive oxygen species(ROS)generation,nuclear condensation,etc were checked to validate the possibility of CHL in protecting CM-induced toxicity.Results:The overall results revealed that pre-treatment with CHL could restrict the ROS generation leading to modulation in associated cytokine proteins expression NFkβand IFNγ.Further,CHL lowered nuclear condensation and elevated expression of DNA repair proteins p53 and PARP,showing a kind of pre-activation of signalling cascades for overall protection against the severity of pesticidal toxicity.Conclusion:Thus,this phyto-based preventive approach would possibly solve many areas of human health issues related to pesticide toxicity in future. | Asmita Samadder Swatilekha Das Bakul Pal Sweta Das Anindita Mandal Priyanka Biswas Sujoy Ghosh Shamim Hossain Mandal Priyanka Sow Ruchira Das Souvik Biswas Ashis Kumar Panigrahi | 2021 | Aquaculture and Fisheries2021，6，4： | 0 |
| 7 | 使用顺势疗法药物商陆的母酊剂从硝酸银中快速绿色合成纳米银颗粒(英文)显示文摘目的:研究顺势疗法药物商陆的母酊剂是否能够从硝酸银沉淀出纳米银颗粒,并通过检测这些纳米银颗粒的生物学活性确定其生物学特征。方法:将100mg硝酸银加入20mL超纯水中,并用力搅动使其混匀,再加入5mL顺势疗法药物商陆的母酊剂(商陆根的乙醇提取物),再用力搅动使其混匀。300K温度下沉降迅速开始,10min后溶液中出现呈浅黄绿色的纳米银颗粒的胶质。胶质溶液经5 000×g离心后分离出纳米银颗粒。对这些纳米银颗粒进行光谱学分析、颗粒测量、电动电位测量,并使用原子力显微镜对其进行形态学观察。使用圆二色光谱分光光度法以小牛胸腺 DNA 作为靶点检测药物-DNA 相互作用和熔化温度。纳米银颗粒的生物活性以人肺癌 A549细胞株、大肠杆菌和酵母菌为实验模型进行检测。结果:顺势疗法药物商陆的母酊剂能够依据环境条件沉淀纳米银颗粒。纳米银颗粒的大小为91nm,多分散性系数为0.119,电动电位为-15.6mV。这种纳米银颗粒具有抗肿瘤和抗细菌活性,但没有显示出抗真菌活性。结论:本研究所采用的生物合成纳米银颗粒的方法无毒且具有良好的成本效益,可以作为一种有益于环境保护的新方法加以开发利用。而顺势疗法药物的母酊剂之所以具有治疗某些疾病或缓解疾病症状的作用,可能也是因为其具有纳米颗粒沉降的作用。 | Soumya Sundar Bhattacharyya Jayeeta Das Sreemanti Das Asmita Samadder Durba Das Arnab De Saili Paul Anisur Rahman Khuda-Bukhsh | 2012 | 中西医结合学报2012，10，5： | 0 |
| 8 | Nanotechnological approaches in diabetes treatment: A new horizon显示文摘Diabetes is a chronic metabolic disorder that affects millions of people worldwide and takes a heavy toll on human life. Treatment of diabetics often poses a problem in selection of the proper drug, its dose and unwanted side effects. Therefore, newer drugs with the least side effects but with highest efficiency are being relentlessly searched for. In recent years, nanotechnology has given new hope for the formulation of various drugs against a myriad of diseases, including diabetes. This review tries to give an overview of the advantages of various new drugs being used, including a wide range of nanoformulations of orthodox as well complementary and alternative medicines. Several studies and research reports based on nanotechnological approaches in the formulation of anti-diabetic drugs have pointed out the fact that research in the formulation of nanodrugs improved strategies for combating diabetes based on the plausible molecular mechanism of action of the drugs. Furthermore, attempts have also been made to delineate the optimum drug concentration and time of exposure in order to recommend a scientifically validated drug dose response in developing different therapeutic strategies. Thus, to a considerable extent, recent studies have contributed towards improving thelife expectancy and quality of life of diabetics, through both targeted orthodox medicine and complementary medicine, particularly those obtained from natural resources. | Asmita Samadder Anisur Rahman Khuda-Bukhsh | 2014 | World Journal of Translational Medicine2014，3，2： | 0 |
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