Results 101 to 110 of about 1,062,757 (298)

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

Aging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Transcriptionally and Functionally Distinct Mesenchymal Subpopulations Are Generated from Human Pluripotent Stem Cells

Stem Cell Reports, 2018
Summary: Various mesenchymal cell types have been identified as critical components of the hematopoietic stem/progenitor cell (HSPC) niche. Although several groups have described the generation of mesenchyme from human pluripotent stem cells (hPSCs), the
Chee Jia Chin, Suwen Li, Mirko Corselli, David Casero, Yuhua Zhu, Chong Bin He, Reef Hardy, Bruno Péault, Gay M. Crooks   +8 more
doaj   +1 more source

Preliminary Analysis of the Ecology and Geography of the Asian Nuthatches (Aves: Sittidae) [PDF]

, 2008
We explored distributions of Asian nuthatch species in ecological and geographic space using ecological niche modeling based on occurrence data associated with specimens and observations. Nuthatches represent a well-defined clade occurring throughout the
Islam, Zafar-Ul, Peterson, A. Townsend, Menon, Shaily, Soberon, Jorge   +3 more
core  

TGF-beta signalling in the adult neurogenic niche promotes stem cell quiescence as well as generation of new neurons. [PDF]

, 2014
Members of the transforming growth factor (TGF)-b family govern a wide range of mechanisms in brain development and in the adult, in particular neuronal/glial differentiation and survival, but also cell cycle regulation and neural stem cell maintenance ...
Strauss, O., Aigner, L., Lehner, B., Kraus, Sabrina, Strauss, Olaf, Reitsamer, Herbert A., Marschallinger, Julia, Lehner, Bernadette, Couillard-Despres, Sebastien, Bogdahn, Ulrich, Couillard‐Despres, Sebastien, Kandasamy, M., Kraus, S., Couillard-Despres, S., Sander, P.R., Trümbach, Dietrich, Aigner, Ludwig, Bogdahn, U., Trümbach, D., Sander, Paul Ramm, Ramm Sander, Paul, Rivera, Francisco J., Ueberham, Uwe, Marschallinger, J., Kandasamy, Mahesh, Reitsamer, H.A., Rivera, F.J., Ueberham, U.   +27 more
core   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

Advanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Integrated Functions of Pax3 and Pax7 in the Regulation of Proliferation, Cell Size and Myogenic Differentiation [PDF]

, 2009
Pax3 and Pax7 are paired-box transcription factors with roles in developmental and adult regenerative myogenesis. Pax3 and Pax7 are expressed by postnatal satellite cells or their progeny but are down regulated during myogenic differentiation.
Morgan, JE, Zammit, PS, Boldrin, L, Collins, C A, Robert B White, Peter S Zammit, White, R B, Relaix, F, Gnocchi, VF, Jennifer E Morgan, Ana Perez-Ruiz, Viola F Gnocchi, Frederic Relaix, Gnocchi, V F, Zammit, P S, Collins, CA, Charlotte A Collins, White, RB, Perez-Ruiz, A, Robert B. White, Jennifer E. Morgan, Viola F. Gnocchi, Morgan, J E, Luisa Boldrin, Peter S. Zammit, Charlotte A. Collins   +25 more
core   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

Advanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti, Kubra Kocak, Andrea Michel, Enrico Cavarzerani, Ali Raza, Petr Rohzin, Nouha Loudhaief, Saimir Frroku, Nicolò Baldovin, Hazrat Bilal, Alvise Perosa, Maurizio Selva, Flavio Rizzolio, Luca Sbuelz, Sabrina Tamburini, Domenico De Fazio, Giovanni Antonio Salvatore   +16 more
wiley   +1 more source

The Sympatric Coexistence Mechanism: A Case Study of Two Penahia Species in the Beibu Gulf, South China Sea

Animals
The study of trophic relationships among closely related species plays an important role in deepening our understanding of the resource utilization characteristics, differentiation patterns, and population dynamics of co-occurring species in the same ...
Konglan Luo, Xiaodong Yang, Yan Zhou, Xiaoying Yi, Chunxu Zhao, Jinxi Wang, Xiongbo He, Yunrong Yan   +7 more
doaj   +1 more source

Dynamically Actuated Reconfigurable Topographical Surface Enables Active Control of Implant‐Associated Infections

Advanced Functional Materials, EarlyView.
A dynamically actuated reconfigurable topographical surface (DARTS) integrates contact‐mediated bactericidal nanotopography with programmable mechanical actuation to actively disrupt bacterial biofilms. Dynamic surface reconfiguration enhances bacterial killing and suppresses implant‐associated infections in vivo, providing a new strategy for active ...
Mohammad Asadi Tokmedash, Jihun Lee, J. Scott VanEpps, Sungmin Nam, Jouha Min   +4 more
wiley   +1 more source

Metabolic flexibility as a major predictor of spatial distribution in microbial communities [PDF]

, 2014
A better understand the ecology of microbes and their role in the global ecosystem could be achieved if traditional ecological theories can be applied to microbes. In ecology organisms are defined as specialists or generalists according to the breadth of
Carbonero Franck, Kevin J. Purdy (511747), Oakley Brian B., Carbonero, Franck, Franck Carbonero, Oakley, Brian B., Brian B Oakley, Kevin J Purdy, Brian B. Oakley (161508), Purdy Kevin J., Purdy, Kevin J., Franck Carbonero (206021)   +11 more
core   +2 more sources