Results 81 to 90 of about 191,418 (345)

Antero-posterior patterning in the brittle star Amphipholis squamata and the evolution of echinoderm body plans

EvoDevo
Although the adult pentaradial body plan of echinoderms evolved from a bilateral ancestor, identifying axial homologies between the morphologically divergent echinoderms and their bilaterian relatives has been an enduring problem in zoology.
L. Formery, P. Peluso, D. R. Rank, D. S. Rokhsar, C. J. Lowe   +4 more
doaj   +1 more source

Positional information specifies the site of organ regeneration and not tissue maintenance in planarians

eLife, 2018
Most animals undergo homeostatic tissue maintenance, yet those capable of robust regeneration in adulthood use mechanisms significantly overlapping with homeostasis.
Eric M Hill, Christian P Petersen
doaj   +1 more source

A Distalless-responsive enhancer of the Hox gene Sex combs reduced is required for segment- and sex-specific sensory organ development in Drosophila. [PDF]

PLoS Genetics, 2018
Hox genes are involved in the patterning of animal body parts at multiple levels of regulatory hierarchies. Early expression of Hox genes in different domains along the embryonic anterior-posterior (A/P) axis in insects, vertebrates, and other animals ...
Sebnem Ece Eksi, Olga Barmina, Christopher L McCallough, Artyom Kopp, Teresa Vales Orenic   +4 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Ks1, an epithelial cell-specific gene, responds to early signals of head formation in Hydra [PDF]

, 1994
As a molecular marker for head specification in Hydra, we have cloned an epithelial cell-specific gene which responds to early signals of head formation.
Bosch, Thomas C. G., David, Charles N., Salgado, Luis M., Weinziger, Ruth   +3 more
core  

Expression of Distal-less, dachshund, and optomotor blind in Neanthes arenaceodentata (Annelida, Nereididae) does not support homology of appendage-forming mechanisms across the Bilateria [PDF]

, 2010
The similarity in the genetic regulation of arthropod and vertebrate appendage formation has been interpreted as the product of a plesiomorphic gene network that was primitively involved in bilaterian appendage development and co-opted to build ...
A Abzhanov, A Caracciolo, A Hejnol, A Hidalgo, A Horner, A Minelli, A Minelli, A Saudemont, A Schmidt-Rhaesa, A Wallberg, AD Chipman, AS Denes, B Hausdorf, B Mittmann, B Prud’homme, B Rhode, C Nielsen, Christopher J. Winchell, CJ Tabin, CJ Winchell, CL Hughes, CM Heuer, CM Heuer, CW Dunn, D Arendt, DA Dorsett, DA Dorsett, David K. Jacobs, DK Jacobs, DK Jacobs, DR Angelini, DR Angelini, DR Maddison, DW Golding, DW Stock, E Abouheif, EC Seaver, EC Seaver, F Ronquist, G Aspöck, G Balavoine, G Campbell, G Giribet, G Mardon, G Panganiban, G Panganiban, G Panganiban, G Scholtz, G Scholtz, G Scholtz, GA Wray, GF Striedter, GO Pflugfelder, GP Wagner, J Felsenstein, J Mallatt, J Mallatt, J Paps, J Paps, JD Thompson, JE Smith, JH Imai, JI Hamaker, JI Pueyo, JJ Gibson-Brown, Jonathan E. Valencia, K Bell, KJ Sepp, KL Hammond, KL Hammond, KS Pappu, L Maves, L Orrhage, L Orrhage, M Kulakova, M Qiu, M Schoppmeier, MJ Bastiani, MJ Telford, N Dray, N Gorfinkiel, N Shubin, N Shubin, N-M Prpic, N-M Prpic, N-M Prpic, N-M Prpic, NJ Strausfeld, NT Takaesu, P Dollé, R Abascal, R Desper, R Janssen, R Janssen, R Kirsch, R Tomer, RF Robledo, RJ Davis, S Candiani, S Guindon, S Nissim, SB Carroll, SF Altschul, SM Cohen, SM Cohen, SM Farris, SQ Irvine, SQ Irvine, SR Martini, T Bartolomaeus, T Kojima, TA Heanue, TA Williams, TH Bullock, W Arthur, W Sewell, W Westheide, WJ Brook, WJ Dickinson, X Yang, Y Boilly-Marer, Y Inoue, Y Inoue, Y Kida, Z Kozmik, Z Kozmik   +125 more
core   +4 more sources

Neural innervation patterns in the sacral vertebral body [PDF]

European Spine Journal, 2015
To characterize the distribution of nerves within a single S1 vertebral body, with particular emphasis on the superior endplate that interfaces with the L5/S1 disc.Musculature and connective tissue surrounding the sacrum was carefully dissected away for close visual inspection of penetrating nerve fibers.
Degmetich, Sean, Bailey, Jeannie F, Liebenberg, Ellen, Lotz, Jeffrey C   +3 more
openaire   +4 more sources

The role of histone modifications in transcription regulation upon DNA damage

FEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Differential Effects of Tau Stage, Lewy Body Pathology, and Substantia Nigra Degeneration on¹⁸F-FDG PET Patterns in Clinical Alzheimer Disease [PDF]

, 2022
Jesús Silva‐Rodríguez, Miguel A. Labrador‐Espinosa, Alexis Moscoso, Michael Schöll, Pablo Mir, Michel J. Grothe, for the Alzheimer’s Disease Neuroimaging Initiative   +6 more
openalex   +1 more source

Injectable and Spatially Patterned Microporous Annealed Particle (MAP) Hydrogels for Tissue Repair Applications. [PDF]

, 2018
Spatially patterned hydrogels are becoming increasingly popular in the field of regenerative medicine and tissue repair because of their ability to guide cell infiltration and migration.
Carmichael, S Thomas, Darling, Nicole J, Hamada, Naomi, Segura, Tatiana, Sideris, Elias   +4 more
core