Neurogenesis in the forebrain region was studied in the Amur sturgeon Acipenser schrenki fry using immunocytochemical marking of the proliferative nuclear antigen. The brain zones with high proliferative activities were located at the brain ventricle surface facing the periventricular cavity. In addition to the periventricular zone of primary proliferation, several secondary proliferative zones were found in the forebrain region of the Amur sturgeon.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Effect of titanium dioxide nanoparticle (TiO-NP) exposure in a novel Amur sturgeon Acipenser schrenckii hepatocyte cell line.
J Fish Biol
September 2024
Key Laboratory of Aquacultural Biotechnology Ministry of Education, and Key Laboratory of Marine Biotechnology of Zhejiang Province, College of Marine Sciences, Ningbo University, Ningbo, China.
In vitro cell culture is crucial for predicting the toxicity of titanium dioxide nanoparticle (TiO-NP). However, assessing the toxicity of TiO-NPs in sturgeon remains difficult given the lack of sufficient cell lines. We established and characterized the first hepatocyte cell line from Acipenser schrenckii liver tissue (ASL).
View Article and Find Full Text PDFIdentification of maturation-inducing steroid in sturgeons via comprehensive analyses of steroids produced during oocyte maturation.
J Steroid Biochem Mol Biol
April 2024
Graduate School of Fisheries Sciences, Hokkaido University, Minato-cho 3-1-1, Hakodate, Hokkaido 041-8611, Japan. Electronic address:
Although 17α, 20β-dihydroxy-4-pregnen-3-one (DHP) and 17α, 20β, 21-trihydroxy-4-pregnen-3-one (20β-S) have been identified as maturation-inducing steroids (MIS) in several teleosts, to date, no MISs have been identified in sturgeons. As it remains possible that an unidentified steroid is an MIS in sturgeons, this study aimed to identify a sturgeon MIS via comprehensive analyses and maturation-inducing (MI) assay of C21 steroids. In vivo and in vitro comprehensive analyses of C21 steroids revealed that serum DHP concentrations were rapidly elevated in the oocyte maturation phase and the DHP production level was notably high among C21 steroids.
View Article and Find Full Text PDFChanges in Ovulation-Related Gene Expression during Induced Ovulation in the Amur Sturgeon () Ovarian Follicles.
Int J Mol Sci
October 2022
Graduate School of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, Hokkaido, Japan.
The luteinizing hormone (LH) and maturation-inducing steroids (MIS), such as 17α,20β-dihydroxy-4-pregnen-3-one, regulate the final oocyte maturation in teleosts. Oocyte maturational competence (OMC) and ovulatory competence measure the sensitivity to MIS for oocyte maturation and ovulation, respectively. However, the molecular mechanisms underlying the acquisition of ovulatory competence remain unknown.
View Article and Find Full Text PDFMiR-34b/c play a role in early sex differentiation of Amur sturgeon, Acipenser schrenckii.
Front Zool
September 2022
Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, China.
Background: Sex differentiation can be viewed as a controlled regulatory balance between sex differentiation-related mRNAs and post-transcriptional mechanisms mediated by non-coding RNAs. In mammals, increasing evidence has been reported regarding the importance of gonad-specific microRNAs (miRNAs) in sex differentiation. Although many fishes express a large number of gonadal miRNAs, the effects of these sex-biased miRNAs on sex differentiation in teleost fish remain unknown.
View Article and Find Full Text PDFFull-length gonad transcriptome analysis of Amur sturgeon Dmrt family genes: identification, characterization, and expression patterns during gonadal differentiation.
Fish Physiol Biochem
August 2022
Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, China.
The regulatory mechanisms that govern sex differentiation in sturgeon are still poorly understood. The doublesex and Mab-3-related transcription factor (Dmrt) gene family is known for its extensive roles in sex determination and differentiation across vertebrates. This study aimed to identify new members of sturgeon Dmrt family genes and core actors in the gonadal differentiation of Amur sturgeon.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!