Results 81 to 90 of about 125,041 (360)

Genotoxicity assessment of chemical mixtures

EFSA Journal, 2019
The EFSA Scientific Committee addressed in this document the peculiarities related to the genotoxicity assessment of chemical mixtures. The EFSA Scientific Committee suggests that first a mixture should be chemically characterised as far as possible ...
EFSA Scientific Committee, Simon More, Vasileios Bampidis, Diane Benford, Jos Boesten, Claude Bragard, Thorhallur Halldorsson, Antonio Hernandez‐Jerez, Susanne Hougaard‐Bennekou, Kostas Koutsoumanis, Hanspeter Naegeli, Søren Saxmose Nielsen, Dieter Schrenk, Vittorio Silano, Dominique Turck, Maged Younes, Gabriele Aquilina, Riccardo Crebelli, Rainer Gürtler, Karen Ildico Hirsch‐Ernst, Pasquale Mosesso, Elsa Nielsen, Roland Solecki, Maria Carfì, Carla Martino, Daniela Maurici, Juan Parra Morte, Josef Schlatter   +27 more
doaj   +1 more source

Genotoxicity and cytotoxicity induced by eluates from orthodontic glass ionomer cements in vitro

Saudi Dental Journal, 2018
The aim of this study was to investigate genotoxicity and cytotoxicity of some orthodontic glass ionomer cements commercially available by means of the single cell gel (comet) assay.
Fernanda Angelieri, Yuri Slusarenko da Silva, Daniel Araki Ribeiro   +2 more
doaj   +1 more source

Scientific opinion on the renewal of the authorisation of Scansmoke SEF7525 (SF‐004) as a smoke flavouring Primary Product

EFSA Journal, 2023
The EFSA Panel on Food Additives and Flavourings (FAF) was requested to evaluate the safety of the smoke flavouring Primary Product Scansmoke SEF7525 (SF‐004), for which a renewal application was submitted in accordance with Article 12(1) of Regulation ...
EFSA Panel name on Food Additives and Flavourings (FAF), Maged Younes, Gabriele Aquilina, Laurence Castle, Gisela Degen, Karl‐Heinz Engel, Paul J Fowler, Maria Jose Frutos Fernandez, Peter Fürst, Ursula Gundert‐Remy, Rainer Gürtler, Trine Husøy, Melania Manco, Peter Moldeus, Sabina Passamonti, Romina Shah, Ine Waalkens‐Berendsen, Matthew Wright, Romualdo Benigni, Polly Boon, Claudia Bolognesi, Eugenia Cordelli, Kevin Chipman, Ullrika Sahlin, Maria Carfì, Edoardo Carnesecchi, Carla Martino, Agnieszka Mech, Salvatore Multari, Vasantha Palaniappan, Alexandra Tard, Wim Mennes   +31 more
doaj   +1 more source

Genotoxic effects of 1-nitropyrene in macrophages are mediated through a p53-dependent pathway involving cytochrome c release, caspase activation, and PARP-1 cleavage

Ecotoxicology and Environmental Safety, 2021
Genotoxic stress from environmental pollutants plays a critical role in cytotoxicity. The most abundant nitro-polycyclic aromatic hydrocarbon in environmental pollutants, 1-nitropyrene (1-NP), is generated during fossil fuel, diesel, and biomass ...
Sheng-Wen Wu, Chun-Hung Su, Yung-Chuan Ho, Rosa Huang-Liu, Ching-Chi Tseng, Yun-Wei Chiang, Kun-Lin Yeh, Shiuan-Shinn Lee, Wen-Ying Chen, Chun-Jung Chen, Yi-Ching Li, Chien-Ying Lee, Yu-Hsiang Kuan   +12 more
doaj   +1 more source

Is there a causal association between genotoxicity and the imposex effect? [PDF]

, 2006
There is a growing body of evidence that indicates common environmental pollutants are capable of disrupting reproductive and developmental processes by interfering with the actions of endogenous hormones.
Josephine A. Hagger, Michael H. Depledge, Jörg Oehlmann, Susan Jobling, Tamara S. Galloway, Colborn T, Collins MKL, Cooke H, Depledge MH, Gibbs PE, Harring KE, Harris JO, Laruelle F, Smith BS   +13 more
core   +1 more source

Pre‐Encoded IFN‐I Sensitivity Exacerbates Memory T Cell Senescence in Solid Tumors

Advanced Science, EarlyView.
Type I interferon (IFN‐I) signaling promotes p21‐dependent cell cycle arrest in senescent tumor‐specific memory T cells, resulting in poor proliferative responses and solid tumor regression during cancer vaccination. Conversely, IFNα/β receptor blockade reinvigorates T cell proliferation to regress solid tumors and is more effective with increasing ...
Andrew Nguyen, Scott R Walsh, Li Deng, Lan Chen, Yonghong Wan   +4 more
wiley   +1 more source

c‐Rel–dependent Chk2 signaling regulates the DNA damage response limiting hepatocarcinogenesis

Hepatology, EarlyView., 2022
In response to genotoxic injury, c‐Rel upregulates ATM‐Chk2‐p53 pathway DNA damage proteins to limiting hepatocarcinogenesis. Abstract Background and Aims Hepatocellular carcinoma (HCC) is a leading cause of cancer‐related death. The NF‐κB transcription factor family subunit c‐Rel is typically protumorigenic; however, it has recently been reported as a
Jack Leslie, Jill E. Hunter, Amy Collins, Amelia Rushton, Lauren G. Russell, Erik Ramon‐Gil, Maja Laszczewska, Misti McCain, Marco Y. W. Zaki, Amber Knox, Yixin Seow, Laura Sabater, Daniel Geh, Neil D. Perkins, Helen L. Reeves, Dina Tiniakos, Derek A. Mann, Fiona Oakley   +17 more
wiley   +1 more source

Telomere shortening associated with increased levels of oxidative stress in sulfur mustard-exposed Iranian veterans [PDF]

, 2018
Sulfur Mustard (SM) is the most widely used chemical weapon. It was used in World War 1 and in the more recent Iran-Iraq conflict. Genetic toxicity and DNA alkylation effects of SM in molecular and animal experiments are well documented.
Ahmadimanesh, Mahnaz, BalaliMood, Mahdi, Behravan, Effat, Blain, Peter, Forghanifard, Mohammad Mahdi, Jowsey, Paul, Kalalinia, Fatemeh, Khateri, Shahriar, Moallem, Seyed Adel   +8 more
core   +1 more source

A Biomarker‐Driven Ovary–Endometrium Organ‐on‐a‐Chip Mimicking 3D Multicellular Complexity and Menstrual Cyclicity for Predicting Reproductive Toxicity

Advanced Science, EarlyView.
We present a dual‐organ, biomarker‐integrated ovaryendometrium organ‐on‐a‐chip that recapitulates 3D tissue complexity, menstrual cycle dynamics, and hormonal crosstalk. This platform enables real‐time, cell‐typespecific fluorescent readouts of reproductive toxicity using ANGPTL4 and SERPINB2 as early‐response reporters.
Soo‐Rim Kim, Eun‐kyung Min, Choon‐Mi Lee, Chan Hum Park, Byung‐Chul Oh, YunJae Jung, In‐Sun Hong   +6 more
wiley   +1 more source

TP53 R249S mutation in hepatic organoids captures the predisposing cancer risk

Hepatology, EarlyView., 2022
The systematic approach in elucidating the gain‐of‐function (GOF) roles of TP53 mutations in early liver carcinogenesis. Unique downstream targets of TP53 L3 mutations were identified from chormatin immunoprecipitation sequencing in HCC cell lines, followed by a series of validation assays to substantiate the exclusive transcriptional regulations ...
Yin Kau Lam, Jianqing Yu, Hao Huang, Xiaofan Ding, Alissa M. Wong, Howard H. Leung, Anthony W. Chan, Kelvin K. Ng, Mingjing Xu, Xin Wang, Nathalie Wong   +10 more
wiley   +1 more source