Results 31 to 40 of about 5,306 (135)

Zebrafish ventral gastrula fate map reveals neural crest progenitor domain

Developmental Dynamics, EarlyView.
Abstract Background Fate maps relate progenitor cell positions to later fates and locations of their progeny, revealing early embryonic organization. Previous zebrafish fate maps identified the origin of germ layers and derivative cell fates, but ventral gastrula progenitor domains were not fully resolved. In particular, the neural crest, a multipotent
Elaine E. Kushkowski, Victoria E. Prince
wiley   +1 more source

Membrane lipid metabolism as a regulatory frontier in neural crest biology: Roles for sphingolipids, cholesterol, and lipid rafts

Developmental Dynamics, EarlyView.
Abstract Neural crest cells are multipotent, migratory stem‐like cells essential for vertebrate development that contribute broadly to many tissues including the craniofacial skeleton, peripheral nervous system, and pigment‐producing cells. Their development progresses through phases of induction, specification, delamination, migration, and ...
Allison E. Mancini, Mallorie P. Jenne, Michael L. Piacentino   +2 more
wiley   +1 more source

NEONATAL DYSFUNCTIONS RESPONSIBLE (EVENTUALLY) FOR DEFINITIVE NEUROLOGICAL HANDICAPS [PDF]

Romanian Journal of Pediatrics, 2009
Beside several malformations, especially cerebral (neurulation disorders, agenesia of the corpus callosum, neuronal migration disorders, etc.), the main neonatal causes of neurological sequelar handicaps are: hipoxya, intracerebral hemorrhage, nuclear ...
Andrei Zamfirescu
doaj   +1 more source

Dynamics of Size and Shape Variation During Embryonic Development in the Balkan Crested Newt

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Morphological variance in Triturus ivanbureschi embryos fluctuates during the tailbud phase, coinciding with developmental arrest caused by the balanced lethal system. Prehatching embryos show uniform variance. Our study reveals dynamics of morphological variability during early development and provides a baseline for further studies.
Marko Bugarčić, Ana Ivanović, Milena Cvijanović, Maja Ajduković, Marija Drobnjaković, Ben Wielstra, Tijana Vučić   +6 more
wiley   +1 more source

Imaging spectrum of spinal dysraphism: A diagnostic challenge

South African Journal of Radiology, 2023
Spinal dysraphism (SD) is a collective term for congenital malformations of the spine and spinal cord. It includes a wide range of congenital anomalies resulting from aberrations in the stages of gastrulation, primary neurulation and secondary ...
Mohit K. Shrivastva, Mousam Panigrahi
doaj   +1 more source

Embryotoxic Effects of Monosodium Methyl Arsenate (MSMA) on Gallus gallus: Morphological and Morphometric Evidence of Developmental Disruptions

Environmental Toxicology, EarlyView.
ABSTRACT Anthropogenic activities and the large volume of compounds released into the environment are sources of contamination for plants, animals, and humans. The herbicide monosodium methyl arsenate (MSMA) ranks among the best‐selling agricultural pesticides in Brazil.
Daniel Moreira Melo, Eduarda Scalfoni Tavares, Melyssa Kmecick, Juliana Castro Monteiro Pirovani   +3 more
wiley   +1 more source

Dolutegravir induces FOLR1 expression during brain organoid development

Frontiers in Molecular Neuroscience
During the first month of pregnancy, the brain and spinal cord are formed through a process called neurulation. However, this process can be altered by low serum levels of folic acid, environmental factors, or genetic predispositions.
Carlo Donato Caiaffa, Carlo Donato Caiaffa, Gabriel Tukeman, Christian Zevallos Delgado, Yogeshwari S. Ambekar, Taye T. Mekonnen, Manmohan Singh, Victoria Rodriguez, Emily Ricco, Daniel Kraushaar, Salavat R. Aglyamov, Giuliano Scarcelli, Kirill V. Larin, Richard H. Finnell, Richard H. Finnell, Robert M. Cabrera   +15 more
doaj   +1 more source

Standardization of egg activation and fertilization in sterlet (Acipenser ruthenus)

Aquaculture Reports, 2020
This study was conducted to determine the minimum number of spermatozoa and optimal volume of activation water for effective fertilization of sterlet Acipenser ruthenus eggs.
Otomar Linhart, Yu Cheng, Miaomiao Xin, Marek Rodina, Vladimíra Tučková, William L. Shelton, Vojtěch Kašpar   +6 more
doaj   +1 more source

Ploidy‐dependent modulation of DNA replication kinetics in Xenopus

The FEBS Journal, EarlyView.
Using an interspecies replication system with Xenopus frog species of different ploidy levels, we investigated how DNA replication adapts to polyploidization. While replication was slower in tetraploid than in diploid nuclei, dodecaploid nuclei unexpectedly replicated faster than tetraploid nuclei. Our findings show that increasing genome size does not
Hemalatha Narassimprakash, Olivier Haccard, Zhen Li, Nicolas Pollet, Kathrin Marheineke   +4 more
wiley   +1 more source

Embryopathological relationship between retained medullary cord and caudal spinal lipoma

Interdisciplinary Neurosurgery, 2022
Purpose: Retained medullary cord (RMC) is a condition in which the cord-like structure (C-LS) is continuous from the conus and extends to the dural cul-de-sac, causing spinal cord tethering, which is thought to originate from the secondary neurulation ...
Takato Morioka, Nobuya Murakami, Ai Kurogi, Nobutaka Mukae, Takafumi Shimogawa, Tadahisa Shono, Satoshi O. Suzuki, Koji Yoshimoto   +7 more
doaj   +1 more source