Results 31 to 40 of about 13,318 (225)
Mcl-1 suppresses abasic site repair following bile acid–induced hepatic cellular DNA damage
In cholestasis, increases in bile acid levels result in the generation of reactive oxygen species and the induction of DNA damage and mutation. It is believed that bile acid accumulation is associated with liver tumorigenesis. However, the mechanism that
Haiyang Yu +11 more
doaj +1 more source
Poly(ADP-Ribose) Links the DNA Damage Response and Biomineralization
Summary: Biomineralization of the extracellular matrix is an essential, regulated process. Inappropriate mineralization of bone and the vasculature has devastating effects on patient health, yet an integrated understanding of the chemical and cell ...
Karin H. Müller +26 more
doaj +1 more source
Nitrosative Stress as a Modulator of Inflammatory Change in a Model of Takotsubo Syndrome
Summary: Previous studies have shown that patients with Takotsubo syndrome (TS) have supranormal nitric oxide signaling, and post-mortem studies of TS heart samples revealed nitrosative stress.
Sven Y. Surikow, BHlthSc (Hons) +15 more
doaj +1 more source
Selective down-regulation of nuclear poly(ADP-ribose) glycohydrolase. [PDF]
The formation of ADP-ribose polymers on target proteins by poly(ADP-ribose) polymerases serves a variety of cell signaling functions. In addition, extensive activation of poly(ADP-ribose) polymerase-1 (PARP-1) is a dominant cause of cell death in ...
David M Burns +4 more
doaj +1 more source
Poly(ADP‐Ribose) Polymerase in Plant Nuclei [PDF]
We show that poly(ADP‐ribose) polymerase is present in maize, pea and wheat nuclei. We have identified the enzyme product as poly(ADP‐ribose) by purification and electrophoresis on a DNA sequencing gel. This reveals a polymer ladder consisting of up to 45 residues. The polymer product from maize, after digestion with snake venom phosphodiesterase, gave
Y M, Chen, S, Shall, M, O'Farrell
openaire +2 more sources
Poly(ADP‐ribose) polymerase is a zinc metalloenzyme [PDF]
Purified poly(ADP‐ribose) polymerase was inhibited by 1,10‐phenanthroline at pH <8. This inhibition and the inhibition by other chelating agents suggested that this enzyme was a metalloprotein. Atomic absorption spectroscopy showed the presence of one atom of zinc per protein molecule.
P, Zahradka, K, Ebisuzaki
openaire +2 more sources
Apoptosis in mouse fetal and neonatal oocytes during meiotic prophase one [PDF]
Background The vast majority of oocytes formed in the fetal ovary do not survive beyond birth. Possible reasons for their loss include the elimination of non-viable genetic constitutions arising through meiosis, however, the ...
Geraldine M Hartshorne +5 more
core +1 more source
Metabolic roles of poly(ADP-ribose) polymerases [PDF]
Poly(ADP-ribosyl)ation (PARylation) is an evolutionarily conserved reaction that had been associated with numerous cellular processes such as DNA repair, protein turnover, inflammatory regulation, aging or metabolic regulation. The metabolic regulatory tasks of poly(ADP-ribose) polymerases (PARPs) are complex, it is based on the regulation of metabolic
Vida, András +3 more
openaire +3 more sources
Inputs and outputs of poly(ADP-ribosyl)ation: Relevance to oxidative stress
Oxidative stress can cause DNA breaks which induce activation of the DNA nick sensor enzyme poly(ADP-ribose) polymerase-1 (PARP-1), part of the 17 member PARP enzyme family.
Csaba Hegedűs, László Virág
doaj +1 more source
Mutation landscape of germline and somatic BRCA1/2 in patients with high-grade serous ovarian cancer
Background Poly (ADP-ribose) polymerase inhibitors targeting BRCA1/2 mutations are available for treating patients with high-grade serous ovarian cancer.
Kyung Jin Eoh +6 more
doaj +1 more source

