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Prairie voles (Microtus ochrogaster) are one of the few mammalian species that are monogamous and engage in the biparental rearing of their offspring. Biparental care impacts the quantity and quality of care the offspring receives. The increased attention by the father may translate to heightened tactile contact the offspring receives through licking and grooming.
View Article and Find Full Text PDFThree-dimensional architecture and linearized mapping of vibrissa follicle afferents.
Nat Commun
January 2025
Bernstein Center for Computational Neuroscience Berlin, Humboldt-Universität zu Berlin, Berlin, Germany.
Understanding vibrissal transduction has advanced by serial sectioning and identified afferent recordings, but afferent mapping onto the complex, encapsulated follicle remains unclear. Here, we reveal male rat C2 vibrissa follicle innervation through synchrotron X-ray phase contrast tomograms. Morphological analysis identified 5% superficial, ~32 % unmyelinated and 63% myelinated deep vibrissal nerve axons.
View Article and Find Full Text PDFStructural Color of Partially Deacetylated Chitin Nanowhisker Film Inspired by Jewel Beetle.
Materials (Basel)
November 2024
Research Institute for Sustainable Humanosphere, Kyoto University, Uji 611-0011, Japan.
Article Synopsis
- Nanochitin is created from crab shells, a food waste product, and ongoing research explores its various applications.
- By sonicating nanochitin in water, short nanowhiskers are produced that self-assemble into a multilayered film, which can manipulate light to create bright structural colors.
- The film's structural colors can indicate freshness in food sensors and offer a sustainable alternative to dyes in cosmetics due to chitin's biocompatibility and non-toxic nature.
Describing the musculature of mystacial pads in harbour seals (Phoca vitulina) using diceCT.
J Anat
October 2024
Department of Natural Science, Manchester Metropolitan University, Manchester, UK.
Pinnipeds have long, sensitive, moveable mystacial vibrissae. In other mammals, intrinsic muscles contribute to protracting the vibrissae. However, the mystacial muscles of pinnipeds have not yet been systematically described.
View Article and Find Full Text PDFCell class-specific long-range axonal projections of neurons in mouse whisker-related somatosensory cortices.
Elife
October 2024
Laboratory of Sensory Processing, Brain Mind Institute, Faculty of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
Article Synopsis
- - The study examines long-range axonal projections of various neocortical excitatory neurons and their role in processing sensory, cognitive, and motor signals across the brain.
- - Researchers utilized light-sheet imaging and convolutional networks to analyze axon distributions from specific genetically defined neuronal classes in the somatosensory cortex, mapping their density using the Allen Mouse Brain Atlas.
- - Findings revealed distinct projection patterns to multiple brain areas from different neuron classes, indicating organized connectivity, particularly between somatosensory and motor cortices, which reflect the anatomical structure of these connections.
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