Facial expression is widely used as a measure of pain in infants; whether nonhuman animals display such pain expressions has never been systematically assessed. We developed the mouse grimace scale (MGS), a standardized behavioral coding system with high accuracy and reliability; assays involving noxious stimuli of moderate duration are accompanied by facial expressions of pain. This measure of spontaneously emitted pain may provide insight into the subjective pain experience of mice.
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http://dx.doi.org/10.1038/nmeth.1455 | DOI Listing |
Front Psychol
January 2025
Department of Psychology, Humboldt-Universität zu Berlin, Berlin, Germany.
Emotional mimicry-the imitation of others' emotions-is an empathic response that helps to navigate social interactions. Mimicry is absent when participants' task does not involve engaging with the expressers' emotions. This may be because task-irrelevant faces (i.
View Article and Find Full Text PDFClin Genet
December 2024
Univ. Lille, CHU Lille, ULR7364 - RADEME - Maladies RAres du DEveloppement embryonnaire et du Métabolisme, CRMR Déficiences Intellectuelles de Causes Rares, Lille, France.
Intellectual Developmental Disorder with Dysmorphic Facies and Ptosis (IDDDFP) is a rare autosomal dominant syndrome caused by pathogenic variants in the BRPF1 gene, which is critical for chromatin regulation. This study expands the clinical and molecular spectrum of IDDDFP by analysing 29 new patients from 20 families with confirmed BRPF1 variants. Our cohort presented with a wide range of clinical features including developmental delay, intellectual disability (ID) and characteristic dysmorphic facial features such as ptosis, blepharophimosis and a broad nasal bridge.
View Article and Find Full Text PDFTissue Cell
December 2024
Department of Facial Features, 970 Hospital, Joint Service Support Force of the Chinese People's Liberation Army, Yantai, Shandong, China. Electronic address:
Allergic rhinitis (AR), common in children and adolescents, involves Lysophosphatidylcholine acyltransferase 1 (LPCAT1) catalyzing surfactant lipid biosynthesis and suppressing endoplasmic reticulum expression. However, the precise mechanism underlying the impact of LPCAT1 on epithelial cell damage in AR remains elusive. Hence, the present investigation elucidated the potential effect of LPCAT1 on epithelial cell damage in AR by inhibiting endoplasmic reticulum stress.
View Article and Find Full Text PDFEmotion
January 2025
Department of Psychology, University of New Hampshire.
We examined categorical processing biases in the perception and recognition of facial expressions of emotion across two studies. In both studies, participants first learned to discriminate between two ambiguous facial expressions of emotion selected from the middle of a continuous array of blended expressions (i.e.
View Article and Find Full Text PDFDev Biol
January 2025
The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, Victoria, 3052, Australia. Electronic address:
The MYST family histone acetyltransferase gene, KAT6B (MYST4, MORF, QKF) is mutated in two distinct human congenital disorders characterised by intellectual disability, facial dysmorphogenesis and skeletal abnormalities; Say-Barber-Biesecker-Young-Simpson variant of Ohdo syndrome and Genitopatellar syndrome. Despite its requirement in normal skeletal development, the cellular and transcriptional effects of KAT6B in skeletogenesis have not been thoroughly studied. Here, we show that germline deletion of the Kat6b gene in mice causes premature ossification in vivo, resulting in shortened craniofacial elements and increased bone density, as well as shortened tibias with an expanded pre-hypertrophic layer, as compared to wild type controls.
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