Results 41 to 50 of about 3,092,948 (244)

Nucleolar organizer regions in Sittasomus griseicapillus and Lepidocolaptes angustirostris (Aves, Dendrocolaptidae): evidence of a chromosome inversion

open access: yesGenetics and Molecular Biology, 2013
Cytogenetic studies in birds are still scarce compared to other vertebrates. Woodcreepers (Dendrocolaptidae) are part of a highly specialized group within the Suboscines of the New World.
Marcelo de Oliveira Barbosa   +5 more
doaj  

Accelerated bacterial reduction on Ag–TaN compared with Ag–ZrN and Ag–TiN surfaces [PDF]

open access: yes
Ag–TaN sputtered on polyester (PES) accelerated >6 times the bacterial inactivation kinetics compared to TaN–PES under actinic light irradiation. Direct current pulsed magnetron sputtering (DCP) was used to sputter Ag–TaN–PES and TaN–PES.
Pulgarin, C.   +5 more
core   +2 more sources

Loss of proton‐sensing TDAG8 increases tumor progression in mouse models of colon cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the pH‐sensing receptor TDAG8 accelerates colorectal cancer progression in mice. Animals lacking TDAG8 expression had increased tumor growth, DNA damage, and recruitment of tumor‐associated immune cells, including macrophages, neutrophils, and monocytes.
Ermanno Malagola   +11 more
wiley   +1 more source

RELATIONSHIP BETWEEN ARGYROPHILIC PROTEINS OF NUCLEOLAR ORGANIZER REGIONS AND ANTIGEN KI-67 WITH CLINICAL AND MORPHOLOGICAL PARAMETERS AND SURVIVAL IN LUNG ADENOCARCINOMA

open access: yesСибирский онкологический журнал, 2016
Argyrophilic proteins associated with nucleolar organizer regions (Ag-NOR proteins) and Ki-67 antigen were investigated in patients with lung adenocarcinoma.
D. S. Kobyakov   +4 more
doaj  

Ag-NOR proteins and rDNA transcriptional activity in plant cells.

open access: yes, 1990
In this work we used Allium cepa root meristem cells in actively growing conditions and under treatment with the protein synthesis inhibitors cycloheximide (CHM) and puromycin.
F J Moreno   +2 more
core   +1 more source

PAK1 activation drives divergent resistance mechanisms to aromatase inhibition and tamoxifen in a luminal: A breast cancer model

open access: yesMolecular Oncology, EarlyView.
Breast cancer remains a major cause of cancer death in women, frequently developing endocrine therapy resistance. This study demonstrates that upregulated p21‐activated kinase 1 (PAK1) activity drives resistance to tamoxifen and long‐term estrogen deprivation in ER+ breast cancer models.
Luisa Schwarzmüller   +10 more
wiley   +1 more source

Ag-NOR staining and satellite association in bone marrow cells from patients with mycosis fungoides [PDF]

open access: yes, 1995
Silver staining of nucleolus organizing regions (Ag-NORs) of acrocentric chromosomes and the frequency of satellite association (SA) in bone marrow (BM) cells from 7 patients with mycosis fungoides (MF), were studied.
Slavutsky, Irma   +1 more
core   +1 more source

In vitro and in silico modelling of ROS1‐positive non‐small cell lung cancer reveals fusion‐dependent tyrosine kinase inhibitor responses

open access: yesMolecular Oncology, EarlyView.
Drug resistance limits treatment success in a subset of lung cancers driven by ROS1 gene alterations. Using patient‐derived cells and computer simulations, we studied three key mutations and how they affect five targeted drugs. The mutations reduced drug effectiveness in different ways by altering protein structure and behavior.
Farhan Ul Haq   +8 more
wiley   +1 more source

Silver nanoparticles with excellent biocompatibility block pseudotyped SARS-CoV-2 in the presence of lung surfactant

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Silver (Ag) is known to possess antimicrobial properties which is commonly attributed to soluble Ag ions. Here, we showed that Ag nanoparticles (NPs) potently inhibited SARS-CoV-2 infection using two different pseudovirus neutralization assays.
Govind Gupta   +9 more
doaj   +1 more source

Histological investigation of physiologically resorbing primary teeth using Ag-NOR staining method

open access: yes, 2002
Objective. The aim of this study was to investigate pulpal tissue of primary teeth in early and late stages of physiological resorption by means of silver-binding nucleolar organizer region (Ag-NOR) staining. Study design. Ten primary teeth in early, ten
Eronat C.   +5 more
core   +1 more source

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