Results 141 to 150 of about 20,940 (309)

Dental development in the tropical gar (Atractosteus tropicus) and the evolution of vertebrate dentitions

Developmental Dynamics, EarlyView.
Abstract Background Dentitions have diversified enormously during vertebrate evolution, involving reductions, modifications, or allocations to prey seizing and processing regions. A combination of ancient and novel features related to dental and oropharyngeal apparatuses is found in extant lineages of non‐teleost fishes, such as the gars.
Anna Pospisilova, Jan Stundl, Lenin Arias‐Rodriguez, Robert Cerny, Vladimír Soukup   +4 more
wiley   +1 more source

Whole tissue imaging of cellular boundaries at sub‐micron resolutions for deep learning cell segmentation: Applications in the analysis of epithelial bending of ectoderm

Developmental Dynamics, EarlyView.
Abstract Background To understand cellular morphology, biologists have relied on traditional optical microscopy of tissues combined with tissue clearing protocols to image structures deep within tissues. Unfortunately, these protocols often struggle to retain cell boundary markers, especially at high enough resolutions necessary for precise cell ...
Sam C. P. Norris, Jimmy K. Hu, Neil H. Shubin   +2 more
wiley   +1 more source

Single‐cell sequencing reveals potential novel insights into appendage‐patterning and joint‐development in a spider

Developmental Dynamics, EarlyView.
Abstract Background Jointed appendages represent one of the key innovations of arthropods, and thus understanding the development and evolution of these structures is important for the understanding of the evolutionary success of Arthropoda. In this paper, we analyze a cell cluster that was identified in a previous single‐cell sequencing (SCS ...
Brenda I. Medina‐Jiménez, Graham E. Budd, Ralf Janssen   +2 more
wiley   +1 more source

The role of Rho GTPases in facial morphogenesis

Developmental Dynamics, EarlyView.
The role of small GTPases, RHOA, RAC1, and CDC42 and pathway mediators is reviewed in the context of embryonic facial development. Lip fusion requires cytoskeletal remodeling during morphogenesis of the facial processes and during lip fusion. Fnm, frontonasal mass; lnp, lateral nasal process; mnp, medial nasal process; mxp, maxillary process; np, nasal
Isra Ibrahim, Joy M. Richman
wiley   +1 more source

Current protocols in the generation of pluripotent stem cells: theoretical, methodological and clinical considerations

Stem Cells and Cloning: Advances and Applications, 2009
Brad B Swelstad, Candace L KerrInstitute for Cell Engineering, Department of Obstetrics and Gynecology, Johns Hopkins University, Baltimore, MA, USAAbstract: Pluripotent stem cells have been derived from various embryonic, fetal and adult sources ...
Brad B Swelstad, Candace L Kerr
doaj  

Bridging maternal effects and epitranscriptomics: A novel perspective in developmental biology

Developmental Dynamics, EarlyView.
Abstract Maternal effects, encompassing both genetic (maternally expressed gene products) and non‐genetic (maternal state) influences, are powerful determinants of offspring phenotype, yet their RNA‐level mechanisms remain incompletely resolved. In parallel, epitranscriptomics, an emerging field centered on chemical modifications to RNA, has revealed ...
Ehsan Pashay Ahi
wiley   +1 more source

Stem cells and the origin of gliomas: A historical reappraisal with molecular advancements. [PDF]

, 2009
The biology of both normal and tumor development clearly possesses overlapping and parallel features. Oncogenes and tumor suppressors are relevant not only in tumor biology, but also in physiological developmental regulators of growth and differentiation.
Ho, Allen L, Hughes, Samuel, Jandial, Rahul, Levy, Michael L, Menon, Jayant   +4 more
core   +3 more sources

Oogenesis and germinal bed morphology of the brown anole (A. sagrei)

Developmental Dynamics, EarlyView.
Abstract Background The brown anole is a model species of the genus Anolis, a squamate (encompassing lizards and snakes) group widely studied in evolutionary, behavioral, and developmental biology. Full genome annotation, the establishment of gene editing techniques, and comprehensive description of reproductive tract morphology and embryogenesis in ...
Bonnie K. Kircher, Antonia Weberling, Erin J. Vance, Natalia A. Shylo, Katherine Starr, Zoe B. Griffin, Hannah Wilson, Melainia McClain, Florian Hollfelder, Suzannah A. Williams, Thomas J. Sanger, Richard R. Behringer, Paul A. Trainor   +12 more
wiley   +1 more source

Study of germ cell tumors of ovary and associated immunohistochemistry [PDF]

Journal of Clinical and Basic Research
Background: Females have a 6–7% lifetime risk of developing ovarian tumors. Ovarian cancer is often termed a “silent killer” due to its frequent diagnosis at advanced stages.
Devunoori Sagarika, Shafaq Baseer, Shilpa Karamchedu, Syed Ali Baqher Hussaini, Rasheed Fatima, Panala Rajya Laxmi, Sana Sultana   +6 more
doaj  

Spatiotemporal cellular dynamics of the notochord shape intervertebral disc morphogenesis in the mouse embryo through apoptosis and proliferation

Developmental Dynamics, EarlyView.
Abstract Background The notochord is a midline structure essential for vertebrate embryogenesis, contributing to the development of the nervous system, digestive tract, and vertebral column. In particular, notochord signaling is indispensable for proper patterning and coordinated development of alternating vertebrae and intervertebral discs (IVDs ...
Julie Warin, Estelle Balissat, Pauline Colombier, Lily Paillat, Maeva Dutilleul, Anne Camus   +5 more
wiley   +1 more source