Results 51 to 60 of about 29,883 (310)

Enzymes and Their Forms Used in Detection of Organophosphorus Compounds

open access: yesВестник войск РХБ защиты, 2021
Еnzymes are able to effectively interact with various organophosphorus compounds (OPC), entering into (bio)chemical reactions with them. Changes in the initial activity of enzymes as a result of their inhibition by OPC, the formation of OPC degradation ...
I. V. Lyagin, E. N. Efremenko
doaj   +1 more source

Bacterial Mutagenicity Screening in the pharmaceutical industry

open access: yes, 2012
Genetic toxicity testing is used as an early surrogate for carcinogenicity testing. Genetic toxicity testing is also required by regulatory agencies to be conducted prior to initiation of first in human clinical trials and subsequent marketing for most ...
Glowienke, Susanne   +2 more
core   +1 more source

A Biomimetic Dual‐Targeting Nano‐APA‐Editor Reprograms the 3'UTR Landscape for Tongue Squamous Cell Carcinoma Therapy

open access: yesAdvanced Science, EarlyView.
This study unveils a pathogenic axis in oral cancer where NUDT21 suppresses a tumor suppressor network, prominently PTEN, via 3'UTR lengthening. To exploit this transcriptomic vulnerability, we developed a biomimetic Nano‐APA‐editor. By delivering CRISPR/Cas9, we reprogrammed the global 3'UTR landscape, restoring multi‐target tumor suppression and ...
Yiran Ao   +5 more
wiley   +1 more source

Dielectric Elastomer Actuators as Safe and Effective Tools for Mechanostimulation of Human Cells

open access: yesAdvanced Intelligent Systems, EarlyView.
Replicating physiological forces is crucial for realistic cell models. Dielectric elastomer actuators (DEAs) offer a soft alternative, though their high voltages raised toxicity concerns. We demonstrate that DEA stimulation causes no cell damage, cell death or cell‐cycle disruption, while activating mechanosensitive responses.
Simon Holzer   +6 more
wiley   +1 more source

Risk-based in silico mutagenic assessment of benzodiazepine impurities using three QSAR tools

open access: yesToxicology Reports
Benzodiazepines, widely prescribed psychoactive drugs, may contain DNA-reactive (mutagenic) impurities formed during synthesis, posing significant health risks.
Srinivas Birudukota   +3 more
doaj   +1 more source

Influence of natural radon and metal contamination on surface water quality from a Brazilian Semiarid Region

open access: yesActa Scientiarum: Biological Sciences, 2017
The Brazilian semiarid region presents some adverse environmental conditions for the settled population such as a restricted water availability and the presence of radon and metal natural sources that can contaminate the water reservoirs and consequently
Richelly da Costa Dantas   +5 more
doaj   +1 more source

His+ reversions Caused in Salmonella typhimurium by different types of ionizing radiation [PDF]

open access: yes, 1988
The yield of his+ reversions in the Ames Salmonella tester strain TA2638 has been determined for 60Co γ rays, 140 kV X rays, 5.4 keV characteristic X rays, 2.2 MeV protons, 3.1 MeV α particles, and 18 MeV/U Fe ions.
Kellerer, Albrecht M.   +3 more
core  

Cumulative Antigen Suppression Reduces Clonal Plasma Cell Evolution in Gaucher Disease

open access: yesAmerican Journal of Hematology, EarlyView.
ABSTRACT Chronic antigenic stimulation is implicated in the pathogenesis of monoclonal gammopathy and multiple myeloma, yet longitudinal human evidence linking sustained antigen exposure to modifiable clonal plasma cell evolution remains limited. Gaucher disease (GD), caused by biallelic GBA1 pathogenic variants, is characterized by accumulation of ...
Noor Ul Ain   +10 more
wiley   +1 more source

In Vitro Mutagenic and Genotoxic Assessment of a Mixture of the Cyanotoxins Microcystin-LR and Cylindrospermopsin

open access: yesToxins, 2019
The co-occurrence of various cyanobacterial toxins can potentially induce toxic effects different than those observed for single cyanotoxins, as interaction phenomena cannot be discarded. Moreover, mixtures are a more probable exposure scenario. However,
Leticia Díez-Quijada   +4 more
doaj   +1 more source

Safety assessment of Polyhexamethylene biguanide [PDF]

open access: yesInternational Journal of Medical Device and Adjuvant Treatments, 2019
OBJECTIVE: The use of antiseptics in the treatment of genital infections has become a systematic alternative to antibiotics. Their use has been also supported for the treatment of virus-induced genital infections.
B. Orrù   +3 more
doaj   +1 more source

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