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On Oscillations in the External Electrical Potential of Sea Urchins.
ACS Omega
January 2025
Unconventional Computing Laboratory, University of the West of England, Coldharbour Ln, Stoke Gifford, Bristol BS16 1QY, U.K.
Sea urchins display complex bioelectric activity patterns, even with their decentralized nervous system. Electrophysiological recordings showed distinct spiking patterns. The baseline potential was about 8.
View Article and Find Full Text PDFEvolutionary patterns of the SSU rRNA (V4 region) secondary structure in genus (Ciliophora, Spirotrichea): insights into cryptic species and primitive traits.
PeerJ
January 2025
Department of Biological Science, University of Ulsan, Ulsan, Republic of South Korea.
The genus , a group of ciliated protists, has attracted attention as a model organism due to its widespread distribution and ease of cultivation. This study examines the evolutionary patterns of the SSU rRNA secondary structure within this genus, aiming to elucidate its role in supporting evolutionary relationships and uncovering cryptic species. By predicting the secondary structure of SSU rRNA and applying the CBC (Compensatory Base Change) concept analysis, we examined 69 species of the genus , with 57 SSU rRNA gene sequences retrieved from GenBank and 12 newly sequenced specimens from South Korea.
View Article and Find Full Text PDFImmuNet: a segmentation-free machine learning pipeline for immune landscape phenotyping in tumors by multiplex imaging.
Biol Methods Protoc
December 2024
Medical BioSciences, Radboudumc, Nijmegen 6562 GA, The Netherlands.
Tissue specimens taken from primary tumors or metastases contain important information for diagnosis and treatment of cancer patients. Multiplex imaging allows visualization of heterogeneous cell populations, such as immune cells, in tissue samples. Most image processing pipelines first segment cell boundaries and then measure marker expression to assign cell phenotypes.
View Article and Find Full Text PDFUrchin-like magnetic nanoparticles loaded with type X collagen siRNA and Stattic to treat triple negative breast cancer under rotating magnetic field like an "enchanted micro-scalpel".
Int J Biol Macromol
January 2025
Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710100, Shaanxi, PR China; Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518063, PR China. Electronic address:
Magnetic nanoparticles effectively target drug delivery, contrast agents, biosensors, and more. Urchin-like magnetic nanoparticles (UMN) with abundant spike-like structures exhibit superior magneto-mechanical force to destroy tumor cells compared with other shapes of magnetic nanoparticles. However, when cell contents are released from tumor cells induced by magneto-mechanical force, they can act on surrounding tumor cells to facilitate tumor development.
View Article and Find Full Text PDFVersatility of Caenorhabditis elegans as a Model Organism for Evaluating Foodborne Neurotoxins and Food Bioactive Compounds in Nutritional Neuroscience.
Mol Neurobiol
January 2025
Department of Molecular Pharmacology, Albert Einstein College of Medicine Forchheimer 209, 1300 Morris Park Avenue, Bronx, NY, 10461, USA.
Epidemiological evidence has shown that the regular ingestion of vegetables and fruits is associated with reduced risk of developing chronic diseases. The introduction of the 3Rs (replacement, reduction, and refinement) principle into animal experiments has led to the use of valid, cost-effective, and efficient alternative and complementary invertebrate animal models which are simpler and lower in the phylogenetic hierarchy. Caenorhabditis elegans (C.
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