Results 161 to 170 of about 33,954 (218)

Hyperoxia Induced Alteration of Chromatin Structure in Human Bone Marrow Derived Primary Mesenchymal Stromal Cells

Advanced Biology, EarlyView.
Chromatin, which organizes DNA, changes its structure to adapt to stress like high oxygen levels (hyperoxia), which can damage cells. Researchers developed a technique to observe these changes and found variability in how different parts of chromatin remodel.
Lauren Monroe, Samantha Kaonis, Natalie Calahan, Neda Kabi, Soham Ghosh   +4 more
wiley   +1 more source

β‐Catenin/c‐Myc Axis Modulates Autophagy Response to Different Ammonia Concentrations

Advanced Biology, Volume 9, Issue 3, March 2025.
Ammonia, detoxified by the liver into urea and glutamine, impacts autophagy differently at varying levels. Low ammonia activates autophagy via c‐Myc and β‐catenin, while high levels suppress it. Using Huh7 cells and Spf‐ash mice, c‐Myc's role in cytoprotective autophagy is revealed, offering insights into hyperammonemia and potential therapeutic ...
S. Sergio, B. Spedicato, G. Corallo, A. Inguscio, M. Greco, D. Musarò, D. Vergara, A. F. Muro, G. De Sabbata, L. R. Soria, N. Brunetti Pierri, M. Maffia   +11 more
wiley   +1 more source

Forskolin Enhances Urokinase Plasminogen Activator Secretion and Angiogenic Activity of Xeno‐Free Cultures of Human Adipose Tissue‐Derived Stem Cells

Advanced Biology, EarlyView.
The regenerative potential of adipose tissue‐derived stem cells can be enhanced through chemical stimulation in vitro. A short stimulation protocol using forskolin, either alone or in combination with other growth factors, under xeno‐free conditions enhanced the pro‐angiogenic responses in human ASCs.
Maria Vittoria Giraudo, Anne Therese Lauvrud, Rebecca Wiberg, Maria Brohlin, Gustav Andersson, Paul J Kingham   +5 more
wiley   +1 more source

Retrotransposon Expression Is Upregulated in Adulthood and Suppressed during Regeneration of the Limb in the Axolotl (Ambystoma mexicanum)

Advanced Biology, EarlyView.
The axolotl's remarkable regenerative abilities decline with age, the causes may include the numerous repetitive elements within its genome. This study uncovers how Ty3 retrotransposons and coexpression networks involving muscle and immune pathways respond to aging and regeneration, suggesting that transposons respond to physiological shifts and may ...
Samuel Ruiz‐Pérez, Nicolás Alcaraz, Karla Torres‐Arciga, José Antonio Ocampo‐Cervantes, Alejandra Cervera, Clementina Castro‐Hernández, Cynthia Gabriela Sámano‐Salazar, Ernesto Soto‐Reyes, Rodrigo González‐Barrios   +8 more
wiley   +1 more source

Targeting RAGE with Nanobodies for Molecular Imaging of Cancers and Alzheimer's Disease

Advanced Biology, EarlyView.
RAGE‐specific nanobodies were isolated via phage display and characterized by ELISA, cell ELISA, and SPR. In vivo imaging in renal carcinoma and Alzheimer's disease mouse models demonstrated that NbF8, the highest‐affinity clone, selectively targeted RAGE‐overexpressing tumors and brain tissues, highlighting its potential as a molecular imaging agent ...
Guangfeng Liang, Fujing Wang, Wei Xiong, Guangwei Shi, Junling Yuan, Yang Li, Hongyan Zhang, Yanmei Xing, Shan Jin, Kongjun Yang, Zhongliang Dai, Jichao Sun, Zhijie Li, Jianhong Wang   +13 more
wiley   +1 more source

Using a Supramolecular Approach to Engineer Modular Hydrogel Platforms for Culturing Protoplasts – from General Tissue Engineering to Cellular Agriculture

Advanced Biology, EarlyView.
Using supramolecular monomers, various hydrogel culture systems were formulated to culture protoplasts; including 2D, 2.5D, and 3D hydrogels. Depending on the culture platform, bioactive functionalization led to protoplast enlargement (2D and 2.5D) or plasmolysis (3D). This work shows the potential to modularly engineer synthetic platforms for cellular
Maritza M. Rovers, Erik J. Slootweg, Ferdinand C. O. Los, Patricia Y. W. Dankers   +3 more
wiley   +1 more source

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Abstractions of data types

Acta Informatica, 2006
The use of abstraction in the context of abstract data types, is investigated. Properties to be checked are formulas in a first order logic under Kleene's 3-valued interpretation. Abstractions are defined as pairs consisting of a congruence and a predicate interpretation. Three types of abstractions are considered,??, ?? and ?0,1?, and for each of them
Å¢iplea, Ferucio LaurenÅ£iu, Enea, Constantin   +1 more
openaire   +3 more sources

Programming with abstract data types [PDF]

ACM SIGPLAN Notices, 1974
The motivation behind the work in very-high-level languages is to ease the programming task by providing the programmer with a language containing primitives or abstractions suitable to his problem area. The programmer is then able to spend his effort in the right place; he concentrates on solving his problem, and the resulting program will be more ...
LiskovBarbara, ZillesStephen
openaire   +2 more sources

Continuous Abstract Data Types

Fundamenta Informaticae, 1986
The basic definitions and the mathematical properties connected with the notion of a continuous abstract data type are given. The existence of initial and terminal models for algebraic hierarchical specifications using ground inequalities is proven. The inequalities may contain universally quantified variables and may be conditional. Three examples for
Martin Wirsing, Andrzej Tarlecki
openaire   +3 more sources

On hierarchies of abstract data types

Acta Informatica, 1983
Hierarchical abstract data types are algebraic specifications of computation structures where certain sorts, function symbols, and axioms are designated as being primitive. On hierarchical abstract data types additional structure is imposed. An algebraic specification is thus decomposed into several well-separated levels, such that both the ...
Martin Wirsing, H. Partsch, Peter Pepper, Manfred Broy, Walter Dosch   +4 more
openaire   +2 more sources