Two homologous cDNA clones were isolated from a Torpedo california electric lobe lambda gt11 expression library using a polyclonal antiserum directed against proteins associated with synaptic vesicles. Northern blotting reveals an 8- to 9-kb transcript in the electric lobe and the spinal cord, but not in the brain or other non-neuronal tissues. Antibodies generated against a fusion protein synthesized in Escherichia coli reacted with a 85- to 90-kD species in the neurons of the electric lobe. The immunoreactivity is associated with microsomal membranes and can be extracted readily with high salt. Immunohistochemical studies demonstrated a sparse punctate staining pattern in the cell body which colocalized with a subpopulation of post-Golgi vesicles.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1089/dna.1989.8.555 | DOI Listing |
Sci Rep
January 2025
Department of Microwave and Antenna Engineering, Faculty of Electronics, Telecommunications, and Informatics, Gdańsk University of Technology, Gdańsk, 80-233, Poland.
An ultrawideband slant-polarized monopulse feed is designed and fabricated for microwave applications. The proposed configuration features four end-launched diagonal horns allowing for the production of sum and difference channels in two principal planes. The key advantage of this proposed monopulse antenna over traditional monopulse feeds is its ability to combine the benefits of ultrawideband performance with slant polarization while maintaining acceptable side lobe level.
View Article and Find Full Text PDFBioengineering (Basel)
January 2025
Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, 20133 Milan, Italy.
As the leading cause of dementia worldwide, Alzheimer's Disease (AD) has prompted significant interest in developing Deep Learning (DL) approaches for its classification. However, it currently remains unclear whether these models rely on established biological indicators. This work compares a novel DL model using structural connectivity (namely, BC-GCN-SE adapted from functional connectivity tasks) with an established model using structural magnetic resonance imaging (MRI) scans (namely, ResNet18).
View Article and Find Full Text PDFNeurochem Res
January 2025
Department of Pathophysiology, Medical University of Lublin, 20-090, Lublin, Poland.
Methionine sulfoximine (MSO) is a compound originally discovered as a byproduct of agene-based milled flour maturation. MSO irreversibly inhibits the astrocytic enzyme glutamine synthase (GS) but also interferes with the transport of glutamine (Gln) and of glutamate (Glu), and γ-aminobutyric acid (GABA) synthesized within the Glu/Gln-GABA cycle, in this way dysregulating neurotransmission balance in favor of excitation. No wonder that intraperitoneal administration of MSO has long been known to induce behavioral and/or electrographic seizures.
View Article and Find Full Text PDFBrain
January 2025
Department of Neurology, University of South Carolina, Columbia, SC 29203, USA.
Despite decades of advancements in diagnostic MRI, 30-50% of temporal lobe epilepsy (TLE) patients remain categorized as "non-lesional" (i.e., MRI negative or MRI-) based on visual assessment by human experts.
View Article and Find Full Text PDFExp Neurol
January 2025
Swammerdam Institute for Life Sciences, Center for Neuroscience, University of Amsterdam, Amsterdam, the Netherlands; Amsterdam UMC, University of Amsterdam, Department of (Neuro) Pathology, Amsterdam Neuroscience, Meibergdreef 9, Amsterdam, the Netherlands. Electronic address:
Decreased capillary expression of low-density lipoprotein receptor-related protein 1 (LRP1) has been linked to increased brain amyloid beta (Aβ) accumulation in Alzheimer's disease (AD). Aβ accumulation has also been observed in (a subset of) temporal lobe epilepsy (TLE) patients, suggesting a potential link between epilepsy and AD. This study examines cellular LRP1 expression in human and rat epileptogenic brain tissue to explore LRP1's role in epilepsy.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!