Results 121 to 130 of about 38,648 (228)
A Family of Developmentally Excised DNA Elements in \u3cem\u3eTetrahymena\u3c/em\u3e is under Selective Pressure to Maintain an Open Reading Frame Encoding an Integrase-Like Protein [PDF]
Tlr1 is a member of a family of ~20-30 DNA elements that undergo developmentally regulated excision during formation of the macronucleus in the ciliated protozoan Tetrahymena.
Gershan, Jill A., Karrer, Kathleen M.
core +1 more source
MICRONUCLEUS TEST IN MOST RECENT ICHTHIOLOGY RESEARCH [PDF]
The purpose of this paper was to give an insight into the most recent ichthiology research in which Micronucleus test is used. This test has been used for some time now as a tool for determining DNA damage in model–organism. Scientists have been using it
Vesna Mijat
doaj
Assessment of Grape, Plum and Orange Synthetic Food Flavourings Using in vivo Acute Toxicity Tests
The present study evaluates the acute toxicity of synthetic grape, plum and orange flavourings in root meristem cells of Allium cepa at the doses of 3.5, 7.0 and 14.0 mL/kg and exposure times of 24 and 48 h, and in bone marrow erythrocytes of mice ...
Ila Monize Sousa Sales +6 more
doaj +1 more source
ABSTRACT The environmental hazards of sunscreens are discussed worldwide. However, there are few ecotoxicological studies on these compounds alone for edaphic organisms, and none for their mixtures. Avobenzone (1 and 10 ng/L), octocrylene (10 and 100 μg/L), and oxybenzone (2 and 20 μg/L), alone and in binary combinations (between the lowest and the ...
Diego Espirito Santo +6 more
wiley +1 more source
Rosa damascena Mill. exhibits a broad spectrum of pharmacological activities mediated by its rich phytochemical profile. The plant enhances antioxidant defenses by increasing endogenous enzymes (CAT, SOD, GSH, GST, GPx, FRAP) and reducing oxidative stress markers (MDA, MPO).
Mahboobeh Ghasemzadeh Rahbardar +2 more
wiley +1 more source
Integrating artificial intelligence (AI) into colorectal cancer reporting
Abstract Artificial intelligence (AI) and deep learning (DL) are transforming cancer research and clinical care, with histopathology playing a central role in this transformation. In colorectal cancer (CRC), the second leading cause of cancer mortality world‐wide, multimodal and vision‐language models (VLMs) hold particular promise for enhancing the ...
Konstantin Bräutigam +4 more
wiley +1 more source
Analysis of Regulatory Inhalation Unit Risk Estimates for Cobalt: Comparison to Epidemiological Data
ABSTRACT Several cancer potency estimates have been proposed by regulatory agencies to characterize the dose response of cobalt and/or cobalt compounds. The objective of this research is to investigate whether these proposed cancer potency estimates for certain cobalt substances align with the available epidemiology literature.
Lynne P. Marshall +4 more
wiley +1 more source
Sewage sludge does not induce genotoxicity and carcinogenesis
Through a series of experiments, the genotoxic/mutagenic and carcinogenic potential of sewage sludge was assessed. Male Wistar rats were randomly assigned to four groups: Group 1 - negative control; Group 2 - liver carcinogenesis initiated by ...
Paula Regina Pereira Silva +3 more
doaj
Diverse Sequences within Tlr Elements Target Programmed DNA Elimination in \u3cem\u3eTetrahymena Thermophila\u3c/em\u3e [PDF]
Tlr elements are a novel family of ~30 putative mobile genetic elements that are confined to the germ line micronuclear genome in Tetrahymena thermophila.
Karrer, Kathleen M. +1 more
core +1 more source
Citation: 'micronucleus test' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.10960 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire +1 more source

