Results 71 to 80 of about 2,616,742 (302)

Retinoic Acid Signaling during Early Spinal Cord Development

open access: yesJournal of Developmental Biology, 2014
Retinoic acid signaling is required at several steps during the development of the spinal cord, from the specification of generic properties to the final acquisition of neuronal subtype identities, including its role in trunk neural crest development ...
Ruth Diez del Corral, Aixa V. Morales
doaj   +1 more source

The Roles of Retinoic Acid and Retinoic Acid Receptors in Inducing Epigenetic Changes [PDF]

open access: yes, 2014
Epigenetics is "the branch of biology which studies the causal interactions between genes and their products which bring the phenotype into being" as defined by Conrad Waddington in 1942 in a discussion of the mechanisms of cell differentiation.
Alison, Urvalek   +2 more
openaire   +2 more sources

A paradoxical teratogenic mechanism for retinoic acid

open access: yes, 2012
Retinoic acid, an active metabolite of vitamin A, plays essential signaling roles in mammalian embryogenesis. Nevertheless, it has long been recognized that overexposure to vitamin A or retinoic acid causes widespread teratogenesis in rodents as well as ...
Lee, Leo M Y   +8 more
core   +1 more source

Super‐Multiplexed Label‐Free Raman Imaging Uncovers Novel Testicular Metabolic Couplings for Residual Body and Spermatogonial Differentiation

open access: yesAdvanced Science, EarlyView.
Super‐multiplexed Label‐free Raman Imaging (SLRI) enables 2D/3D metabolic mapping of intact Drosophila testes. Moving beyond descriptive morphology, it establishes a multidimensional tool for tissue metabolic remodeling, and offers a generalizable platform for complex tissue analysis, with implications extending to development and disease. ABSTRACT The
Jiaxin Li   +23 more
wiley   +1 more source

Effects of all Trans Retinoic Acid Combined with Cisplatin on Survival of Gastric Cancer Cell Line (AGS)

open access: yesپزشکی بالینی ابن سینا, 2013
Introduction & Objective: All-trans retinoic acid, a derivative of retinoids, is widely used to in-duce prolifferation, differentiation and apoptosis in normal, precancareous and cancerous cells. Cisplatin, an effective drug for cancer treatment, induces
Noruz Najafzadeh   +3 more
doaj  

Formation of neural and epidermal lineages during the differentiation of human embryonal carcinomacells [PDF]

open access: yes, 2003
Within the ectoderm of the developing human embryo, cell fate determination is largely modulated by factors activated by cell-to-cell signalling. In vertebrates, ectoderm primarily differentiates into neural cells that make up the central nervous system ...
Christie, Victoria Buyers
core  

Spatiotemporal Multi‐Omic Mapping Reveals Liver‐Muscle Metabolic Crosstalk in Cancer Cachexia

open access: yesAdvanced Science, EarlyView.
The interactive CCAtlas platform delineates cross‐species, spatiotemporal, and sex‐specific molecular dynamics and metabolic rewiring across organs during cancer cachexia. Hepatic Gamt downregulation curtails hepatic creatine synthesis to trigger systemic creatine insufficiency and consequent skeletal muscle atrophy in LLC tumour‐bearing mice ...
Zihan Tian   +12 more
wiley   +1 more source

UBE3A Dosage Imbalance as a Molecular Framework Linking Angelman Syndrome and Dup15q‐Associated Autism Phenotypes

open access: yesAmerican Journal of Medical Genetics Part B: Neuropsychiatric Genetics, EarlyView.
ABSTRACT UBE3A is a dosage‐sensitive HECT E3 ubiquitin ligase whose neuronal expression is shaped by genomic imprinting at the 15q11.2‐q13 locus. Opposite directions of UBE3A dosage imbalance contribute to distinct neurodevelopmental phenotypes: loss of maternal UBE3A underlies Angelman syndrome, whereas maternally derived 15q11.2‐q13 copy‐number gains,
Ruslan Kurmashev
wiley   +1 more source

Acute Myelogenous Leukemia without Maturation with a Retinoic Alpha-Receptor Deletion: A Case Report

open access: yesCase Reports in Oncology, 2014
Acute promyelocytic leukemia (APL) is characterized by a t(15;17) which fuses the 17q retinoic acid alpha-receptor sequence to the 15q PML gene sequence.
Christopher Trosclair   +4 more
doaj   +1 more source

Biophysical Characterization and Proteomic Analysis of Small Extracellular Vesicles Derived From Different Neural Cell Lines

open access: yesAdvanced NanoBiomed Research, EarlyView.
This study systematically compares small extracellular vesicles (sEVs) derived from four neural cell lines, revealing how cellular origin shapes vesicle biophysical properties and proteomic cargo. Distinct, lineage‐specific signatures linked to neuronal, astrocytic, and microglial functions are identified, highlighting the importance of cell source ...
Muhammad Waqas Salim   +4 more
wiley   +1 more source

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