Results 131 to 140 of about 59,469 (309)

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]

open access: yes, 2000
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

Lead-induced DNA damage in Vicia faba root cells: Potential involvement of oxidative stress [PDF]

open access: yes, 2011
Genotoxic effects of lead (0–20 µM) were investigated in whole-plant roots of Vicia faba L., grown hydroponically under controlled conditions. Lead-induced DNA damage in V.
Jean, Séverine   +3 more
core   +2 more sources

Cellular Stress, Inflammation and Barrier Damage in Gut Epithelial Cells Caused by Aspartame

open access: yesAllergy, EarlyView.
This study shows that aspartame, at dietary‐relevant doses, induces cytotoxicity, cellular distress associated with endoplasmic reticulum stress, oxidative stress, DNA replication and repair mechanism disturbance culminating in epithelial barrier damage.
Yagiz Pat   +16 more
wiley   +1 more source

Exposures in Indoor Air Affecting Health

open access: yesAllergy, EarlyView.
ABSTRACT Indoor air quality (IAQ) is influenced by a wide range of chemical, biological and physical agents that can negatively impact physical, immunological and mental health. Adverse health effects depend on the type and concentration of pollutants, duration of exposure, and individual susceptibility.
Maria Hartiala   +38 more
wiley   +1 more source

Phenanthrene and nitrite effects on juvenile sea bass, Dicentrarchus labrax, using hepatic biotransformation enzymes, biliary fluorescence, and micronuclei as biomarkers

open access: yesCiencias Marinas, 2009
Aquatic organisms may absorb organic compounds mainly from water and by ingestion of contaminated food. The toxicity of such compounds may be intensified by the presence of certain inorganic compounds such as nitrite (NO2–).
MA Reis-Henriques   +5 more
doaj   +1 more source

Progeny of Germ Line Knockouts of \u3cem\u3eASI2\u3c/em\u3e, a Gene Encoding a Putative Signal Transduction Receptor in \u3cem\u3eTetrahymena Thermophila\u3c/em\u3e, Fail to Make the Transition from Sexual Reproduction to Vegetative Growth [PDF]

open access: yes, 2006
The ciliated protozoan Tetrahymena has two nuclei: a germ line micronucleus and a somatic macronucleus. The transcriptionally active macronucleus has about 50 copies of each chromosome.
Cole, Eric S.   +4 more
core   +1 more source

MASTL Promotes Hepatocellular Carcinoma Progression and Paclitaxel Resistance Through Mitotic Catastrophe

open access: yesCancer Science, EarlyView.
MASTL drives hepatocellular carcinoma (HCC) progression and paclitaxel resistance by triggering mitotic catastrophe. Depletion of MASTL induces DNA damage and promotes mitotic catastrophe, leading to cell death in HCC. MASTL‐mediated mitotic catastrophe depends on PP2A‐B55α activity, suggesting a novel therapeutic target for overcoming chemotherapy ...
Ke Wang   +4 more
wiley   +1 more source

MICRONUCLEUS TEST IN MOST RECENT ICHTHIOLOGY RESEARCH [PDF]

open access: yesCroatian Journal of Fisheries, 2005
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

open access: yesFood Technology and Biotechnology, 2017
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

The bromodomain-containing protein Ibd1 links multiple chromatin related protein complexes to highly expressed genes in Tetrahymena thermophila

open access: yes, 2018
Background: The chromatin remodelers of the SWI/SNF family are critical transcriptional regulators. Recognition of lysine acetylation through a bromodomain (BRD) component is key to SWI/SNF function; in most eukaryotes, this function is attributed to ...
Burtch, Alyson   +9 more
core   +1 more source

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