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The contribution of cutaneous thermal signals to bodily self-awareness.
Nat Commun
January 2025
Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy.
Thermosensory signals may contribute to the sense of body ownership, but their role remains highly debated. We test this assumption within the framework of pathological body ownership, hypothesising that skin temperature and thermoception differ between right-hemisphere stroke patients with and without Disturbed Sensation of Ownership (DSO) for the contralesional plegic upper limb. Patients with DSO exhibit lower basal hand temperatures bilaterally and impaired perception of cold and warm stimuli.
View Article and Find Full Text PDFThermosensory behaviors of the free-living life stages of Strongyloides species support parasitism in tropical environments.
PLoS Negl Trop Dis
December 2024
Department of Neurobiology and Biophysics, University of Washington, Seattle, Washington, United States of America.
Soil-transmitted parasitic nematodes infect over 1 billion people worldwide and are a common source of neglected disease. Strongyloides stercoralis is a potentially fatal skin-penetrating human parasite that is endemic to tropical and subtropical regions around the world. The complex life cycle of Strongyloides species is unique among human-parasitic nematodes in that it includes a single free-living generation featuring soil-dwelling, bacterivorous adults whose progeny all develop into infective larvae.
View Article and Find Full Text PDFTracing the Evolutionary History of the Temperature-Sensing Prion-like Domain in EARLY FLOWERING 3 Highlights the Uniqueness of AtELF3.
Mol Biol Evol
October 2024
Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.
Article Synopsis
- Plants have developed mechanisms to adapt their growth in response to environmental changes, with ELF3 being a key regulator that impacts their circadian clock and temperature sensitivity.
- Research on Arabidopsis thaliana, specifically its prion-like domain (PrLD) within ELF3, revealed its function as a thermosensor at high temperatures, but its effectiveness in other plant species remains uncertain.
- Variations in the length of polyglutamine (polyQ) repeats in ELF3 show wide diversity among A. thaliana accessions, but this variation is weakly linked to geographic and climatic factors, suggesting that while it may enhance ELF3's role in thermomorphogenesis, it isn't a major factor for environmental adaptation in other plants.
Thermosensing ability of TRPC5: current knowledge and unsettled questions.
J Physiol Sci
October 2024
Department of Cellular Neurophysiology, Institute of Physiology, Czech Academy of Sciences, Videnska 1083, 142 20, Prague 4, Czech Republic.
Our understanding of how the mammalian somatosensory system detects noxious cold is still limited. While the role of TRPM8 in signaling mild non-noxious coolness is reasonably understood, the molecular identity of channels transducing painful cold stimuli remains unresolved. TRPC5 was originally described to contribute to moderate cold responses of dorsal root ganglia neurons in vitro, but mice lacking TRPC5 exhibited no change in behavioral responses to cold temperature.
View Article and Find Full Text PDFTRPV2: a universal regulator in cellular physiology with a yet poorly defined thermosensitivity.
J Physiol Sci
September 2024
Department of Anesthesiology and Intensive Care Medicine, Hannover Medical School, Carl-Neuberg Strasse 1, 30625, Hannover, Germany.
Transient receptor potential (TRP) ion channels serve as sensors for variations in ambient temperature, modulating both thermoregulation and temperature responsive cellular processes. Among these, the vanilloid TRP subfamily (TRPV) comprises six members and at least four of these members (TRPV1-TRPV4) have been associated with thermal sensation. TRPV2 has been described as a sensor for noxious heat, but subsequent studies have unveiled a more complex role for TRPV2 beyond temperature perception.
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