Results 121 to 130 of about 58,125 (347)

DNA damage in buccal cells in oral PMDs and malignant disorders by comet assay

Brazilian Journal of Oral Sciences, 2019
Aim: DNA damage associated with Oral Squamous Cell Carcinoma (OSCC) and potentially malignant disorders (PMDs) is produced due to carcinogenic agents or increased oxidative stress. Comet assay can assist in early detection and evaluation of the amount of
Garima Rawat, Aadithya B Urs, Anita Chakravarti, Priya Kumar   +3 more
doaj   +1 more source

The DNA damage response acts as a safeguardagainst harmful DNA–RNA hybrids ofdifferent origins [PDF]

, 2019
Despite playing physiological roles in specific situations, DNA–RNA hybrids threat genome integrity. To investigate how cells do counteract spontaneous DNA–RNA hybrids, here we screen an siRNA library covering 240 human DNA damage response (DDR) genes ...
Aguilera López, Andrés, Barroso Ceballos, Sonia Inés, García Rubio, María Luisa, Gómez González, Belén, Herrera Moyano, Emilia, Muñoz Sánchez, Sergio   +5 more
core   +1 more source

Bisphenol A Induces DNA Damage and Differential Cytotoxicity in Thyroid Cells: High‐Dose Effects Challenge Regulatory Thresholds

Journal of Applied Toxicology, EarlyView.
ABSTRACT Bisphenol A (BPA), a ubiquitous environmental endocrine disruptor, has been implicated in carcinogenesis; however, its effects on thyroid cells remain unclear. This study investigated BPA‐induced cytotoxicity and genotoxicity in thyroid cell lines, including normal follicular (Nthy‐ori 3‐1), papillary carcinoma (TPC‐1 and BCPAP) and anaplastic
Izabela Fernanda Dal' Bó, Natássia Elena Bufalo, Valdemar Máximo, Laura Sterian Ward   +3 more
wiley   +1 more source

Genomic instability in patients with type 2 diabetes mellitus on hemodialysis

Revista Brasileira de Hematologia e Hemoterapia, 2012
OBJECTIVE: A previous study by our research group evaluated the levels of DNA damage using the comet assay in hemodialysis patients with type 2 diabetes mellitus. The same blood samples were also evaluated using the cytochalasin B micronucleus assay.
Roberta Passos Palazzo, Pamela Brambilla Bagatini, Patrícia Brandt Schefer, Fabiana Michelsen de Andrade, Sharbel Weidner Maluf   +4 more
doaj   +1 more source

Genotoxic and stress inductive potential of cadmium in Xenopus laevis larvae [PDF]

, 2006
The present investigation evaluates the toxic potential of Cd in larvae of the frog Xenopus laevis after 12 days of exposure to environmentally relevant contamination levels, close to those measured in the river Lot (France).
Baudrimont, Magalie, Boudou, Alain, Bourdineaud, Jean-Paul, Cuenot, Y., Gauthier, Laury, Gonzalez, Patrice, Mouchet, Florence   +6 more
core   +3 more sources

Evaluation of DNA/Chromosome Integrity and Cell Death in Human Metabolically Noncompetent and Competent Cells Exposed to N′‐(3,5‐Difluorobenzylidene)Pyridine‐4‐Carbohydrazide

Journal of Applied Toxicology, EarlyView.
ABSTRACT The N‐acylhydrazone scaffold is recognized as a privileged structure for the design of bioactive substances with increasing applications in medicinal chemistry research. Ensuring the safety of newly developed molecules is a critical step for both human health and environmental protection. Accordingly, this study aimed to evaluate the cytotoxic
Larissa Ribeiro Canuto Santos, Jéssica Natalia Barbosa de Almeida, Camila Cavalleiro Frias, Wanda Pereira Almeida, Edson Luis Maistro   +4 more
wiley   +1 more source

The MRN complex is transcriptionally regulated by MYCN during neural cell proliferation to control replication stress [PDF]

, 2015
The MRE11/RAD50/NBS1 (MRN) complex is a major sensor of DNA double strand breaks, whose role in controlling faithful DNA replication and preventing replication stress is also emerging. Inactivation of the MRN complex invariably leads to developmental and/
A Dupre, A Gulino, A Kuzyk, A Shibata, A Soriani, A Wey, A Wey, AM Duursma, AM Taylor, B Argenti, B Ricci, B Shiotani, BR Stanton, C Bruhn, C Heil, CJ Thiele, CL Marcelis, D Dominguez-Sola, D Fruci, DW Felsher, EA Rahal, F Sardina, G Giannini, G Giannini, H van Bokhoven, HE Bryant, I Screpanti, J Buis, J Charron, J Lafrance-Vanasse, J Wu, K Schlacher, K Trenz, KA Cole, KH Chrzanowska, KK To, L Di Marcotullio, LJ Valentijn, M Cognet, M Murga, M Petroni, M Petroni, M Sahún-Roncero, M Wilda, M Wojewodzka, O Chayka, P Khongkow, PE Neiman, PJ Hurlin, PO Frappart, PS Knoepfler, R Moser, R Thompson, R Waltes, RS Williams, RV Pusapati, S Albini, S Biton, S Ray, S Rohban, S Sawai, S Ying, SV Srinivasan, TG Oliver, TH Stracker, V Colicchia, V Veschi, V Veschi, W Lutz, YC Chiang, YL Lin   +70 more
core   +1 more source

Cellular Responses to Tartrazine and Sulfanilic Acid Exposure in BEAS‐2B Cells: Viability, Apoptosis, and DNA Damage

Journal of Applied Toxicology, EarlyView.
ABSTRACT Tartrazine is a synthetic azo dye widely used in food, pharmaceutical, and cosmetic products, resulting in extensive human exposure, while its toxicity and that of its primary metabolite, sulfanilic acid, remain controversial. Considering the reported association of tartrazine with hypersensitivity and allergic‐like reactions, human bronchial ...
Merve Baysal, Abdullah Burak Karaduman, Büşra Korkut Çelikateş, Merve Güven, Özlem Atlı‐Eklioğlu, Sinem Ilgın   +5 more
wiley   +1 more source

Detection of Hypoxia in Human Brain Tumor Xenografts Using a Modified Comet Assay

Neoplasia: An International Journal for Oncology Research, 2003
We used the standard comet assay successfully to generate in vitro dose-response curves under oxic and hypoxic conditions. We then made mixtures of cells that had been irradiated with 3 and 9 Gy of X-rays to simulate two subpopulations in a tumor, but ...
Jingli Wang, Jack Klem, Jan B. Wyrick, Tomoko Ozawa, Erin Cunningham, Jay Golinveaux, Max J. Allen, Kathleen R. Lamborn, Dennis F. Deen   +8 more
doaj   +1 more source

The effects of inspiratory muscle training in older adults [PDF]

, 2015
Purpose: Declining inspiratory muscle function and structure and systemic low-level inflammation and oxidative stress may contribute to morbidity and mortality during normal ageing.
Aznar-Lain, Belman, Borg, Bowling, Brooks, Bruunsgaard, Carey, Davis, DEAN E. MILLS, Dennis, Downey, Enright, Falaschetti, Febbraio, Freedman, Garcia-Rio, GRAHAM R. SHARPE, Greig, Ho, Huang, Huang, Illi, Jensen, Johnson, Johnson, Kharraz, Kregel, Kumar, Kyle, MICHAEL A. JOHNSON, Miller, Mills, Mills, Murphy, Phillips, Polkey, Ramirez-Sarmiento, Robertson, Romer, Romer, Takahashi, Tidball, Troosters, Washburn, Watsford, WILLIAM H. T. SMITH, Wolsk, YVONNE A. BARNETT   +47 more
core   +2 more sources