Results 121 to 130 of about 105,598 (267)

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

, 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.
Fitzek, M., Kellerer, Albrecht M., Roos, H., Thomas, W.-H.   +3 more
core   +1 more source

Snapshots of Motion: A Novel Structural Intermediate Reveals Conserved Dynamics in Archaeal DNA Ligases

Proteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT We present the first x‐ray crystallographic structural evidence of an archaeal DNA ligase showing the AMP covalent adduct together with further cofactor hydrolysis, capturing a transient intermediary in the first step of the ligation reaction, triggered by the pyrophosphate hydrolysis.
A. X. Quintana‐Armas, E. Flores‐Hernández, C. Cardona‐Félix, E. Rudiño‐Piñera   +3 more
wiley   +1 more source

Bridging Psychological Stress and Skin Cellular Aging: Flavonoids as a Dual‐Action Therapeutic Strategy

Phytotherapy Research, EarlyView.
ABSTRACT Psychological stress (or simply “stress”) is a major contributor to chronic disease worldwide, affecting 35% of the global population, including younger generations. Furthermore, it plays a significant role in human premature aging; hence, its detrimental effects on people's health compel us to comprehend and control the ways in which ...
Marco Duarte, Sílvia Santos Pedrosa, P. Raaj Khusial, Ana Raquel Madureira   +3 more
wiley   +1 more source

Phytochemical‐Based Strategies for Lung Cancer: Clinical Insights Into Pleiotropic Molecular Signaling and Therapeutic Roles

Phytotherapy Research, EarlyView.
Lung cancer (LC) remains the leading cause of global cancer‐related death. Phytochemicals from medicinal plants are increasingly being considered as potential LC treatment agents due to their multi‐targeted action, safety, and accessibility. These have anticancer properties by regulating key molecular signaling pathways.
Md. Rezaul Islam, Abdur Rauf, Happy Akter, Md. Ibrahim Khalil Al‐Imran, Md. Naeem Hossain Fakir, Gazi Kaifeara Thufa, Umme Habiba, Karjin Nahar Riya, Md. Mahfuzur Rahman, Md Sadique Hussain, Hanan A. Ogaly, Abdullah S. M. Aljohani, Waleed Al Abdulmonem, Dorota Formanowicz, Marcello Iriti   +14 more
wiley   +1 more source

Poly ADP-ribose polymerase-1 and health

Experimental Biology and Medicine, 2010
Niacin (vitamin B3) is required to form nicotinamide adenine dinucleotide (NAD) and nicotinamide adenine dinucleotide phosphate (NADP), which are involved in scores of anabolic and catabolic redox reactions throughout metabolism. It is now understood that NAD+ is also a substrate for several families of ADP-ribosylation reactions, which control ...
openaire   +2 more sources

Liquid biopsy in genitourinary oncology: Current clinical applications and future prospects across prostate, bladder, and renal cancers

UroPrecision, EarlyView.
Abstract Liquid biopsy has emerged as a transformative approach in oncology, providing minimally invasive access to tumor‐derived biomarkers with applications across diagnosis, prognosis, therapeutic guidance, and disease monitoring. This literature review synthesizes evidence from 125 studies evaluating circulating tumor DNA, circulating tumor cells ...
Kirolos Eskandar
wiley   +1 more source

Mitotic functions of poly(ADP-ribose) polymerases

Biochemical Pharmacology, 2019
Mitosis ensures accurate segregation of duplicated DNA through tight regulation of chromosome condensation, bipolar spindle assembly, chromosome alignment in the metaphase plate, chromosome segregation and cytokinesis. Poly(ADP-ribose) polymerases (PARPs), in particular PARP1, PARP2, PARP3, PARP5a (TNKS1), as well as poly(ADP-ribose) glycohydrolase ...
openaire   +3 more sources

The Multifaceted Role of Rad9 in the DNA Damage Response of Saccharomyces cerevisiae

Yeast, EarlyView.
ABSTRACT To maintain the integrity of the genome, cells have evolved a complex signalling system, termed the DNA damage response (DDR), which detects DNA damage and promotes DNA repair. To date, over 600 proteins have been identified that play an integral role in the DDR. RAD9, encoding a DDR mediator protein, was the prototypical DNA damage checkpoint
A. Kiely, F. O'Halloran, P. Young, N. F. Lowndes, M. Grenon, K. Finn   +5 more
wiley   +1 more source

Selective small molecule targeting of KDM4 as a therapeutic strategy to reduce proliferation of acute myeloid leukaemia

British Journal of Haematology, EarlyView.
Summary Acute myeloid leukaemia (AML) is an aggressive disease with poor survival and high relapse rates. Coupled with the complex mutational burden observed, there is an unmet clinical need for more targeted therapies. Epigenetic therapies have shown promise both as monotherapy and in combination strategies and specifically histone lysine demethylase,
Laura Monaghan, Roderick P. Bunschoten, Joana Bittencourt‐Silvestre, Taeju Park, Susan Gannon, Petrisor Alin Pirvan, Alex Hoose, Helen Wheadon, Robert M. J. Liskamp, Xu Huang, Heather G. Jørgensen   +10 more
wiley   +1 more source

The relationship between the cannabinoids and cardiac remodelling: A comprehensive review of pivotal mechanisms and emerging evidence

British Journal of Pharmacology, EarlyView.
Cardiac remodelling and fibrosis after myocardial infarction or during chronic diseases, such as arterial and pulmonary hypertension or diabetes mellitus, continue to be the more important prognostic factors in determining survival, and so the search for effective anti‐fibrotic interventions is an important target for research and therapy in cardiology.
Anna Krzyżewska, Marta Baranowska‐Kuczko, Hanna Kozłowska   +2 more
wiley   +1 more source