Results 71 to 80 of about 1,321 (169)

The evolution of tenascins

open access: yesBMC Ecology and Evolution
Background The evolution of extracellular matrix is tightly linked to the evolution of organogenesis in metazoans. Tenascins are extracellular matrix glycoproteins of chordates that participate in integrin-signaling and morphogenetic events.
Josephine C. Adams, Richard P. Tucker
doaj   +1 more source

Evolution of oxytocin pathways in the brain of vertebrates

open access: yesFrontiers in Behavioral Neuroscience, 2014
The central oxytocin system transformed tremendously during the evolution, thereby adapting to the expanding properties of species. In more basal vertebrates (paraphyletic taxon Anamnia, which includes agnathans, fish and amphibians), magnocellular ...
H. Sophie Knobloch, Valery eGrinevich
doaj   +1 more source

Electrical excitation of the heart in a basal vertebrate, the european river lamprey (Lampetra fluviatilis) [PDF]

open access: yes, 2014
Hagfishes and lampreys (order Cyclostomata) are living representatives of an ancient group of jawless vertebrates (class Agnatha). Studies on cyclostome hearts may provide insights into the evolution of the vertebrate heart and thereby increase our ...
Egginton, S, Haverinen, J, Vornanen, M
core   +1 more source

Comparative and Functional Analysis of Exosomal microRNAs During Semelparous Reproduction in Ayu Fish (Plecoglossus altivelis)

open access: yesJournal of Extracellular Biology, Volume 4, Issue 3, March 2025.
ABSTRACT As a life history strategy, some semelparous organisms, such as the ayu fish (Plecoglossus altivelis), reproduce only once in their lifetime and then die. They invest heavily in their single reproductive event, producing many offspring. However, the regulatory mechanisms that trigger mortality after reproduction are not well understood ...
Yida Pan   +11 more
wiley   +1 more source

Generation of Lamprey Monoclonal Antibodies (Lampribodies) Using the Phage Display System. [PDF]

open access: yes, 2019
The variable lymphocyte receptors (VLRs) consist of leucine rich repeats (LRRs) and comprise the humoral antibodies produced by lampreys and hagfishes.
Amemiya, Chris T   +3 more
core   +2 more sources

Review of osteoderm function and future research directions

open access: yesJournal of Zoology, Volume 325, Issue 1, Page 1-24, January 2025.
Osteoderms are bone plates in the skin that occur in virtually all major tetrapod clades. Much has been speculated about their function, but many questions remain unanswered. This review provides an overview of the current state of knowledge and future research directions in this field.
R. Ebel   +3 more
wiley   +1 more source

Galanin in an Agnathan: Precursor Identification and Localisation of Expression in the Brain of the Sea Lamprey Petromyzon marinus

open access: yesFrontiers in Neuroanatomy, 2019
Galanin is a neuropeptide that is widely expressed in the mammalian brain, where it regulates many physiological processes, including feeding and nociception.
Daniel Sobrido-Cameán   +8 more
doaj   +1 more source

Cloning and characterisation of multiple ferritin isoforms in the Atlantic salmon (Salmo salar) [PDF]

open access: yes, 2014
Peer reviewedPublisher ...
Lee, Jun Hoe   +3 more
core   +4 more sources

Soluble adenylyl cyclase is an acid‐base sensor in rainbow trout red blood cells that regulates intracellular pH and haemoglobin–oxygen binding

open access: yesActa Physiologica, Volume 240, Issue 10, October 2024.
Abstract Aim To identify the physiological role of the acid‐base sensing enzyme, soluble adenylyl cyclase (sAC), in red blood cells (RBC) of the model teleost fish, rainbow trout. Methods We used: (i) super‐resolution microscopy to determine the subcellular location of sAC protein; (ii) live‐cell imaging of RBC intracellular pH (pHi) with specific sAC ...
Till S. Harter   +6 more
wiley   +1 more source

Novel viruses discovered in the transcriptomes of agnathan fish [PDF]

open access: yesJournal of Fish Diseases, 2022
Lewis K. Mercer   +3 more
openaire   +2 more sources

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