Results 1 to 10 of about 82,937 (120)

SIRT2 mediated downregulation of FOXM1 in response to TGFβ through the RAF-MEK-ERK signaling pathway in colon cancer [PDF]

open access: yesArchives of Biological Sciences, 2021
The transcription factor forkhead box M1 (FOXM1) is frequently upregulated in many solid tumors, including those in the colon. As a master regulator, the sirtuin (SIRT) protein family is comprised of seven nicotinamide adenine dinucleotide (NAD ...
Ozden Ozkan, Park Seong-Hoon
doaj   +1 more source

Extraction and Physicochemical Characterization of Chitosan from Litopenaeus vannamei Shells [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2022
The chitosan was extracted from a whiteleg shrimp shell (Litopenaeus vannamei (by the deacetylation of chitin, which is carried out using 45% NaOH at 110 ºC for 6 h.
Hengameh Darzi Arbabi   +4 more
doaj   +1 more source

New Insight in HDACs: Potential Therapeutic Targets for the Treatment of Atherosclerosis

open access: yesFrontiers in Pharmacology, 2022
Atherosclerosis (AS) features include progressive hardening and reduced elasticity of arteries. AS is the leading cause of morbidity and mortality. An increasing amount of evidence showed that epigenetic modifications on genes serve are a main cause of ...
Yi Luan   +7 more
doaj   +1 more source

Bacterial Sirtuins Overview: An Open Niche to Explore

open access: yesFrontiers in Microbiology, 2021
Sirtuins are deacetylase enzymes widely distributed in all domains of life. Although for decades they have been related only to histones deacetylation in eukaryotic organisms, today they are considered global regulators in both prokaryotes and eukaryotes.
Julia Gallego-Jara   +5 more
doaj   +1 more source

Hydration mechanism of heterogeneous alkaline deacetylation of chitin [PDF]

open access: yesVestnik MGTU, 2017
In the work the hypothesis has been proposed explaining the features of the kinetics of chitin/chitosan alkali deacetylation reaction in highly concentrated solutions of sodium hydroxide, which almost completely stops after 30–60 min after the start of ...
Novikov V. Yu.   +4 more
doaj   +1 more source

Mechanism of HBx Protein Inhibiting DKK4 Expression and Its Effect on Proliferation and Migration of Hepatocarcinoma Cell Lines

open access: yesZhongliu Fangzhi Yanjiu, 2022
Objective To explore the mechanism of hepatitis B virus X protein down-regulating DKK4 and its effect on the proliferation, migration of HCC cell lines.
ZHANG Wenjing   +4 more
doaj   +1 more source

Optimisation of conditions for deacetylation of chitin-containing raw materials

open access: yesHarčova Nauka ì Tehnologìâ, 2021
The paper describes the differences between chitosan and chitin, and reviews works by foreign scientists on obtaining chitosan from various raw materials. Methods of modifying chitosan and obtaining combined sorbents have been analysed.
O. Pavlova, M. Trusova
doaj   +1 more source

Synergy between SIRT1 and SIRT6 helps recognize DNA breaks and potentiates the DNA damage response and repair in humans and mice

open access: yeseLife, 2020
The DNA damage response (DDR) is a highly orchestrated process but how double-strand DNA breaks (DSBs) are initially recognized is unclear. Here, we show that polymerized SIRT6 deacetylase recognizes DSBs and potentiates the DDR in human and mouse cells.
Fanbiao Meng   +18 more
doaj   +1 more source

Histone epigenetic modifications and their relationship with cancer: a comparative medicine view [PDF]

open access: yesCiência Rural, 2023
: Epigenetic modifications have become highly important in the study of cancer pathogenesis due to research showing that changes in the expression of DNA-associated proteins can affect gene expression but may be reversible after treatment.
Igor Luiz Salardani Senhorello   +1 more
doaj   +1 more source

Chemical and Mechanical Differences between Historic and Modern Scots Pine Wood

open access: yesHeritage, 2020
Timber is one of the most common historic building materials, but relatively little is known about how it ages in situ. Here we investigate historic and modern Scots pine to determine any chemical or mechanical differences between them. Fourier-transform
Kate Hudson-McAulay   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy