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Cytotoxicity

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Articles 31 - 40 of 40

Full-Text Articles in Pharmacology, Toxicology and Environmental Health

Reactive Oxygen Species Mediated Dna Damage In Human Lung Alveolar Epithelial (A549) Cells From Exposure To Non-Cytotoxic Mfi-Type Zeolite Nanoparticles, Kunal Bhattacharya, Pratap Naha, Izabela Naydenova, Svetlana Mintova, Hugh Byrne Dec 2012

Reactive Oxygen Species Mediated Dna Damage In Human Lung Alveolar Epithelial (A549) Cells From Exposure To Non-Cytotoxic Mfi-Type Zeolite Nanoparticles, Kunal Bhattacharya, Pratap Naha, Izabela Naydenova, Svetlana Mintova, Hugh Byrne

Articles

Increasing utilization of engineered nanoparticles in the field of electronics and biomedical applications demands an assessment of risk associated with deliberate or accidental exposure. Metal based nanoparticles are potentially most important of all the nanoparticles in terms of health risks. Microporousalumino-silicates and pure silicates named as zeolites and zeo-type materials with variety of structures, chemical compositions, particle sizes and morphologies have a significant number of industrial uses such as in catalysis, sorption and ion-exchange processes. In particular, the nanosized particles due to their unique properties are used in hybrid organic-inorganic materials for photography, photonics, electronics, labeling, imaging, and sensing. The …


Xanthones And Biphenyls From Garcinia Schomburgkiana Wood And Their Cytotoxicity, Chutichot Mungmee, Supotchana Sitthigool, Rutt Suttisri, Anumart Buakeaw Jan 2012

Xanthones And Biphenyls From Garcinia Schomburgkiana Wood And Their Cytotoxicity, Chutichot Mungmee, Supotchana Sitthigool, Rutt Suttisri, Anumart Buakeaw

The Thai Journal of Pharmaceutical Sciences

No abstract provided.


Cytotoxic Evaluation Of The Powder Of Spinacia Oleracea In Human Liver Hepatocarcinoma Cell Line Using Mtt Assay, Sarunva Laovitthavanggoon, Krittiya Thisayakorn, Pongsathorn Limsiriwong, Sawai Nakakaew, Kanjana Sriyam, Vicheon Kaeynok, Chuleratana Banchonglikitkul Jan 2012

Cytotoxic Evaluation Of The Powder Of Spinacia Oleracea In Human Liver Hepatocarcinoma Cell Line Using Mtt Assay, Sarunva Laovitthavanggoon, Krittiya Thisayakorn, Pongsathorn Limsiriwong, Sawai Nakakaew, Kanjana Sriyam, Vicheon Kaeynok, Chuleratana Banchonglikitkul

The Thai Journal of Pharmaceutical Sciences

No abstract provided.


Cytotoxicity Of Gold Nanoparticles In Human Imr-32 Neuroblastoma Cells, Pokchat Lohaphansomboon, Pithi Chanvorachote, Warangkana Warisnoicharoen Jan 2012

Cytotoxicity Of Gold Nanoparticles In Human Imr-32 Neuroblastoma Cells, Pokchat Lohaphansomboon, Pithi Chanvorachote, Warangkana Warisnoicharoen

The Thai Journal of Pharmaceutical Sciences

No abstract provided.


Synthesis, Evaluation And Structural Studies Of Antiproliferative Tubulin-Targeting Azetidin-2-Ones, Niamh O'Boyle, Lisa M. Greene, Orla Bergin, Jean-Baptiste Fichet, Thomas Mccabe, David G. Lloyd, Daniela M. Zisterer, Mary J. Meegan Jan 2011

Synthesis, Evaluation And Structural Studies Of Antiproliferative Tubulin-Targeting Azetidin-2-Ones, Niamh O'Boyle, Lisa M. Greene, Orla Bergin, Jean-Baptiste Fichet, Thomas Mccabe, David G. Lloyd, Daniela M. Zisterer, Mary J. Meegan

Articles

A series of azetidin-2-ones substituted at positions 2, 3 and 4 of the azetidinone ring scaffold were synthesised and evaluated for antiproliferative, cytotoxic and tubulin binding activity. In these compounds, the cis double bond of the vascular targeting agent combretastatin A-4 is replaced with the azetidinone ring in order to enhance the antiproliferative effects displayed by combretastatin A-4 and prevent the cis/trans isomerization that is associated with inactivation of combretastatin A-4. The series of azetidinones was synthetically accessible via the Staudinger and Reformatsky reactions. Of a diverse range of heterocyclic derivatives, 3-(2-thienyl) analogue 28 and 3-(3-thienyl) analogue 29 displayed the …


Synthesis, Characterization And Manipulation Of Creighton Silver Nanoparticles For Future Cytotoxicity Studies, Sesha Lakshmi Paluri Jan 2011

Synthesis, Characterization And Manipulation Of Creighton Silver Nanoparticles For Future Cytotoxicity Studies, Sesha Lakshmi Paluri

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Nowadays, 24% of the nanomaterial-based consumer products contain silver nanoparticles (AgNPs) and exploit the well-known antimicrobial properties of silver. Although AgNPs have a wide range of biomedical research and industrial applications, very little is known about their toxicity. The main goal of this study is to synthesize, characterize and manipulate Creighton colloidal AgNPs for future cytotoxicity studies. These "naked" AgNPs were free from chemically aggressive capping/stabilizing agents, reaction byproducts or organic solvents. To achieve this goal, colloidal AgNPs were successfully: a) synthesized in large volumes (5L) using a slightly modified Creighton method by the reduction of silver nitrate with sodium …


Synthesis And Evaluation Of Azetidinone Analogues Of Combretastatin A-4 As Tubulin Targeting Agents, Niamh O'Boyle, Miriam Carr, Lisa M. Greene, Orla Bergin, Seema M. Nathwani, Thomas Mccabe, David G. Lloyd, Daniela M. Zisterer, Mary J. Meegan Jan 2010

Synthesis And Evaluation Of Azetidinone Analogues Of Combretastatin A-4 As Tubulin Targeting Agents, Niamh O'Boyle, Miriam Carr, Lisa M. Greene, Orla Bergin, Seema M. Nathwani, Thomas Mccabe, David G. Lloyd, Daniela M. Zisterer, Mary J. Meegan

Articles

The synthesis and antiproliferative activity of a new series of rigid analogues of combretastatin A-4 are described which contain the 1,4-diaryl-2-azetidinone (β-lactam) ring system in place of the usual ethylene bridge present in the natural combretastatin stilbene products. These novel compounds are also substituted at position 3 of the β-lactam ring with an aryl ring. A number of analogues showed potent nanomolar activity in human MCF-7 and MDA-MB-231 breast cancer cell lines, displayed in vitro inhibition of tubulin polymerization and did not cause significant cytotoxicity in normal murine breast epithelial cells. 4-(4-Methoxyaryl)-substituted compound 32, 4-(3-hydroxy-4-methoxyaryl)-substituted compounds 35 and 41 and …


Cytotoxicity And Inhibitory Activity On Hepatitis B Surface Antigen Secretion From Plc/Prf/5 Cells Of Medicinal Plant Extracts, Thaveechai Prommetta, Sattaporn Sirotamarat, Kruavon Balachandra, Ekarin Saifah Jan 2006

Cytotoxicity And Inhibitory Activity On Hepatitis B Surface Antigen Secretion From Plc/Prf/5 Cells Of Medicinal Plant Extracts, Thaveechai Prommetta, Sattaporn Sirotamarat, Kruavon Balachandra, Ekarin Saifah

The Thai Journal of Pharmaceutical Sciences

Ethanolic extracts of three medicinal plants including Derris scandens, Rhinacanthus nasutus and Santalum album were investb'ated for cytotoxicity by MTT assay and inhibition of hepatitis B surface antigen secretion from PLC/PRF/5 cells by ELISA. Results...


Chemical Constitutents And Cytotoxicity Of Some Tanzanian Wild Mushrooms, V. Nyigo, L. D. Baraza, M. H. H. Nkunya, S. J. M. Mdachi, C. C. Joseph, A. Waziri Dec 2005

Chemical Constitutents And Cytotoxicity Of Some Tanzanian Wild Mushrooms, V. Nyigo, L. D. Baraza, M. H. H. Nkunya, S. J. M. Mdachi, C. C. Joseph, A. Waziri

Tanzania Journal of Science

The sterol ergosterol and ergosta-4,22-diene-3β,7α-diol, together with 4-hydroxybenzaldehyde were isolated from the mushroom species Polyporus molluscensis, Cantharellus isabelinus, C. symoensii and a Podaxis species. Their structures were established on the basis of spectroscopic data. The ethanol extracts of mushroom samples of Agaricus sp. and Termitomyces letestui also showed cytotoxicity against the brine shrimp larvae.


Screening Of Some Rubiaceous Plants For Cytotoxic Activity Against Cervix Carcinoma (Kb-3-1) Cell Line (การคัดกรองความป็นพิษต่อเซลล์มะเร็งปากมดลูกชนิด Kb-3-1 ข..., Patcharawan Tanamatayarat, Porn-Ngarm Limtrakul, Sunee Chunsakaow, Chadarat Duangrat Jan 2003

Screening Of Some Rubiaceous Plants For Cytotoxic Activity Against Cervix Carcinoma (Kb-3-1) Cell Line (การคัดกรองความป็นพิษต่อเซลล์มะเร็งปากมดลูกชนิด Kb-3-1 ข..., Patcharawan Tanamatayarat, Porn-Ngarm Limtrakul, Sunee Chunsakaow, Chadarat Duangrat

The Thai Journal of Pharmaceutical Sciences

Twenty plants in the family Rubiaceae collected from Northern Thailand were extracted and compared for their cytotoxic activities against a human cervix carcinoma cell line (KB-3T). MTT assay was the technique utilized for cell survival determination. Th...