Results 111 to 120 of about 315,999 (305)

Structural basis of amino acid surveillance by higher-order tRNA-mRNA interactions

Nature Structural & Molecular Biology, 2019
Amino acid availability in Gram-positive bacteria is monitored by T-box riboswitches. T-boxes directly bind tRNAs, assess their aminoacylation state, and regulate the transcription or translation of downstream genes to maintain nutritional homeostasis ...
Shuang Li, Z. Su, J. Lehmann, Vassiliki Stamatopoulou, Nikoleta Giarimoglou, Frances E. Henderson, L. Fan, G. Pintilie, Kaiming Zhang, Muyuan Chen, S. Ludtke, Yun-Xing Wang, C. Stathopoulos, W. Chiu, Jinwei Zhang   +14 more
semanticscholar   +1 more source

Ultrasound‐Triggered Gelation for Restoring Biomechanical Properties of Degenerated Functional Spinal Units

Advanced Healthcare Materials, EarlyView.
This study introduces an innovative approach to treating intervertebral disc degeneration using ultrasound‐triggered in situ hydrogel formation. Proof‐of‐concept experiments using optimized biomaterial and ultrasound parameters demonstrate partial restoration of biomechanical function and successful integration into degenerated disc tissue, offering a ...
Veerle A. Brans, Anna P. Constantinou, Matthew J. Kibble, Valeria Nele, Daniel Reumann, Luca Bau, Sebastien J. P. Callens, James P. K. Armstrong, Nicolas Newell, Constantin C. Coussios, Molly M. Stevens, Michael D. Gray   +11 more
wiley   +1 more source

Biodistribution of Mesenchymal Stem Cell-Derived Extracellular Vesicles in a Radiation Injury Bone Marrow Murine Model

International Journal of Molecular Sciences, 2019
We have previously shown that injury induced by irradiation to murine marrow can be partially or completely reversed by exposure to human or murine mesenchymal stem cell (MSC)-derived extracellular vesicles (EVs).
Sicheng Wen, M. Dooner, E. Papa, M. Del Tatto, M. Pereira, T. Borgovan, Yan Cheng, L. Goldberg, Olin Liang, G. Camussi, P. Quesenberry   +10 more
semanticscholar   +1 more source

Bioprinting Organs—Science or Fiction?—A Review From Students to Students

Advanced Healthcare Materials, EarlyView.
Bioprinting artificial organs has the potential to revolutionize the medical field. This is a comprehensive review of the bioprinting workflow delving into the latest advancements in bioinks, materials and bioprinting techniques, exploring the critical stages of tissue maturation and functionality.
Nicoletta Murenu, Camilla Mussoni, Mateo S. Andrade Mier, Paula Buettner, Nathaly Chicaiza‐Cabezas, Yi‐Yu Robin Dai, Jessica Faber, Maren Fiedler, Zan Lamberger, Xuen Jen Ng, Vanessa Moessler, Anna Rederer, Jonas Roeder, Sabrina Stecher, Katinka Theis, Jeanette Weigelt, Silvia Budday, Gregor Lang, Natascha Schaefer   +18 more
wiley   +1 more source

Few‐Layered Conductive Graphene Foams for Electrical Transdifferentiation of Mesenchymal Stem Cells Into Schwann Cell‐Like Phenotypes

Advanced Healthcare Materials, EarlyView.
Few‐layered three dimansional conductive graphene foams are promising cytocompatible platforms to transdifferentiate mesenchymal stem cells into Schwann cell‐like phenotypes using electrical and microstructural cues. Applied electrical stimulation conditions resulted in activation of MAPK, neurotrphin and RAS signaling pathways that led to upregulation
Ekin G. Simsar, Peifu Cheng, Tugce Dogruel, Maxsam Donta, Juhyung Jung, Naomi A. Asante, Donald S. Sakaguchi, Surya K. Mallapragada, Piran R. Kidambi, Metin Uz   +9 more
wiley   +1 more source

Antibiotics should not be used for back/leg pain

Acta Orthopaedica, 2021
Manniche Claus, Peter Fritzell, Olle Hägg, Tomas Bergström, Bodil Jönsson, Siv G E Andersson, Mikael Skorpil, Peter Muhareb Udby, Mikkel Andersen   +8 more
doaj   +1 more source

CD44: a novel synaptic cell adhesion molecule regulating structural and functional plasticity of dendritic spines

Molecular Biology of the Cell, 2016
CD44 is a novel molecular player that regulates structure and function of the synapse. It affects excitatory synaptic transmission, dendritic spine shape, number of functional synapses, and activity-dependent neuronal plasticity.
M. Roszkowska, A. Skupien, T. Wójtowicz, A. Konopka, A. Gorlewicz, M. Kisiel, M. Bekisz, B. Ruszczycki, H. Doleżyczek, E. Rejmak, E. Knapska, J. Mozrzymas, J. Włodarczyk, G. Wilczynski, J. Dzwonek   +14 more
semanticscholar   +1 more source

Granular Hydrogels as Modular Biomaterials: From Structural Design to Biological Responses

Advanced Healthcare Materials, EarlyView.
Granular hydrogels are now emerging as promising biomaterials due to their inherent microporousity, injectability, and modularity. They have shown improvements in cell viability and migration, cellular/tissue infiltration, host tissue integration, mitigated foreign body response, and tissue regeneration.
Asmasadat Vaziri, Renata Maia, Pei Zhang, Liliana Agresti, Jelmer Sjollema, Mohammad‐Ali Shahbazi, Hélder A. Santos   +6 more
wiley   +1 more source

Glucose deprivation-induced disulfidptosis in human nucleus pulposus cells: a novel pathological mechanism of intervertebral disc degeneration

Biology Direct
Background Limited supply of certain nutrients and deregulation of nucleus pulposus (NP) plays a key role in the pathogenesis of intervertebral disc degeneration (IVDD).
Shaobo Wu, Jin Wang, Minglin Wang, Kaisheng Zhou, Dageng Huang, Yilei Zhang, Haihong Zhang   +6 more
doaj   +1 more source

CircITSN1/EIF4A3/Itsn1 axis mediates postoperative cognitive dysfunction in aged mice: A novel mechanism and therapeutic target

Molecular Therapy: Nucleic Acids
Circular RNAs (circRNAs) are stable noncoding RNAs that play a crucial role in neurodegenerative diseases, and they have been implicated in the pathogenesis of postoperative cognitive dysfunction (POCD).
Changteng Zhang, Xiaoyu Zhu, Rui Gao, Hai Chen, Caiyi Yan, Wangyang Liu, Lina Yang, Xianzheng Zeng, Haoran Yang, Jin Liu, Qi Li, Daqing Ma, Tao Zhu, Chan Chen   +13 more
doaj   +1 more source