Results 81 to 90 of about 4,292 (162)

The role of the notochord in amniote vertebral column segmentation [PDF]

open access: yes, 2018
The vertebral column is segmented, comprising an alternating series of vertebrae and intervertebral discs along the head-tail axis. The vertebrae and outer portion (annulus fibrosus) of the disc are derived from the sclerotome part of the somites ...
Ward, L, Pang, ASW, Evans, SE, Stern, CD
core   +1 more source

Functional Brachyury binding sites establish a temporal read-out of gene expression in the Ciona notochord.

open access: yesPLoS Biology, 2013
The appearance of the notochord represented a milestone in Deuterostome evolution. The notochord is necessary for the development of the chordate body plan and for the formation of the vertebral column and numerous organs.
Lavanya Katikala   +9 more
doaj   +1 more source

A Porcine Model of Intervertebral Disc Injury Recapitulates Human Discogenic Pain Via Notochordal Cell Loss and Pain‐Inducing Nucleus Pulposus Cell Emergence

open access: yesJOR SPINE, Volume 9, Issue 3, September 2026.
A porcine model of disc injury recapitulates key clinical, histological, and molecular features of human discogenic low back pain. Multi‐omics analyses identify a shift from notochordal cells to pain‐associated nucleus pulposus cells as a potential driver of disease progression. ABSTRACT Background Lower back pain (LBP) is one of the most common causes
Giselle Kaneda   +14 more
wiley   +1 more source

Surviving the Nucleus Pulposus Desert: Next‐Generation Strategies for Intervertebral Disc Cell Therapy

open access: yesJOR SPINE, Volume 9, Issue 3, September 2026.
ABSTRACTBackgroundLow back pain remains the leading cause of disability worldwide, with intervertebral disc degeneration representing a major biological contributor. Although cell‐based therapies have shown promise in preclinical models, clinical translation has yielded modest and inconsistent outcomes.
Tynhinane Hamidouche   +9 more
wiley   +1 more source

Shape and position of the node and notochord along the bilateral plane of symmetry are regulated by cell–extracellular matrix interactions

open access: yesBiology Open, 2014
The node and notochord (and their equivalents in other species) are essential signaling centers, positioned along the plane of bilateral symmetry in developing vertebrate embryos. However, genes and mechanisms regulating morphogenesis of these structures
Maria Pulina, Dong Liang, Sophie Astrof
doaj   +1 more source

My Love Story With HIFs in the Disc: A Journey to the Humboldt Research Award

open access: yesJOR SPINE, Volume 9, Issue 3, September 2026.
ABSTRACT The intervertebral disc is a prime example of tissue adaptation to metabolic and mechanical extremes. As the largest avascular organ in the human body, the disc and the central nucleus pulposus (NP) endure constant compressive loading while sustaining a hypoxic, relatively acidic, and hyperosmotic microenvironment that would be inhospitable to
Makarand V. Risbud
wiley   +1 more source

Mechanisms of Copper-Dependent Notochord Formation in Zebrafish [PDF]

open access: yes, 2010
The interplay of genes and nutrition during early development profoundly impacts fetal outcome. Copper is an essential nutrient required for the redox activity of many enzymes, and recent work in our laboratory has elucidated the phenotype of copper ...
Gansner, John
core   +1 more source

Notochord Morphogenesis: A Prickly Subject for Ascidians [PDF]

open access: yes, 2005
Orchestrated cell movements marshalled by proper cell polarity in the developing body axes are fundamental to the elongation of the notochord during chordate embryogenesis.
Tada, Masazumi
core   +1 more source

Matrix metalloproteinase Nas15 regulates the lumen formation and expansion in Ciona notochord

open access: yesFrontiers in Ecology and Evolution
Lumen formation, as a key process of biological tube construction, is essential in various physiological processes such as nutrient and waste transporting, gas exchanging, and structural supporting.
Jianqing Bi   +6 more
doaj   +1 more source

Sacrococcygeal chordoma in a 9-year-old boy Cordoma sacrococígeo em um menino de 9 anos de idade

open access: yesArquivos de Neuro-Psiquiatria, 1995
A case of sacrococcygeal chordoma in a 9-year-old boy is presented. The symptoms at presentation were pain in both legs and sacrococcygeal region for the last two years that increased in the last four weeks irradiating mainly to the left leg.
Lúcia de Noronha   +4 more
doaj   +1 more source

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