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http://dx.doi.org/10.1111/j.1524-4725.2009.01373.x | DOI Listing |
J Physiol
January 2025
Université Paris Cité, CNRS, Saints-Pères Paris Institute for the Neurosciences, Paris, France.
Fañanas cells (FCs) are cerebellar glia of unknown function. First described more than a century ago, they have been almost absent from the scientific literature ever since. Here, we combined whole-cell, patch clamp recordings, near-UV laser photolysis, dye-loading and confocal imaging for a first characterization of FCs in terms of their morphology, electrophysiology and glutamate-evoked currents.
View Article and Find Full Text PDFJ Neuropathol Exp Neurol
January 2025
Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, United States.
In modern war theaters, exposures to blast overpressures are one of the most common causes of brain injury. These pervasive events result in acute and chronic cerebrovascular degenerative processes. Using a rat model of blast-induced mild traumatic brain injury, we identified intramural periarterial hematomas as early primary acute lesions induced by blast exposures.
View Article and Find Full Text PDFA previous study found that a domesticated bacterial group II intron-like reverse transcriptase (G2L4 RT) functions in double-strand break repair (DSBR) via microhomology-mediated end joining (MMEJ) and that a mobile group II intron-encoded RT has a basal DSBR activity that uses conserved structural features of non-LTR-retroelement RTs. Here, we determined G2L4 RT apoenzyme and snap-back DNA synthesis structures revealing novel structural adaptations that optimized its cellular function in DSBR. These included a unique RT3a structure that stabilizes the apoenzyme in an inactive conformation until encountering an appropriate substrate; a longer N-terminal extension/RT0-loop with conserved residues that together with a modified active site favors strand annealing; and a conserved dimer interface that localizes G2L4 RT homodimers to DSBR sites with both monomers positioned for MMEJ.
View Article and Find Full Text PDFJ Surg Case Rep
January 2025
Department of Surgery, Armed Forces Medical College, Pune, Maharashtra, 411040, India.
Basal cell carcinomas are common facial malignancies with minimally invasive treatment approaches effective in the majority of cases. Recurrent aggressive lesions pose significant challenges and need wide local excision with major reconstruction. Geriatric patient with multiple comorbidities needs customized reconstructions to minimize morbidity.
View Article and Find Full Text PDFBrain Behav Immun Health
February 2025
Department of Physiology, School of Medicine, University College Cork, Western Road, Cork, Ireland.
Duchenne muscular dystrophy (DMD), an X-linked neuromuscular disorder, characterised by progressive immobility, chronic inflammation and premature death, is caused by the loss of the mechano-transducing signalling molecule, dystrophin. In non-contracting cells, such as neurons, dystrophin is likely to have a functional role in synaptic plasticity, anchoring post-synaptic receptors. Dystrophin-expressing hippocampal neurons are key to cognitive functions such as emotions, learning and the consolidation of memories.
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