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Reduced adult stem cell fate specification led to eye reduction in cave planarians.
Nat Commun
January 2025
Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil.
Eye loss occurs convergently in numerous animal phyla as an adaptation to dark environments. We investigate the cave planarian Girardia multidiverticulata (Gm), a representative species of the Spiralian clade, to study mechanisms of eye loss. We found that Gm, which was previously described as an eyeless species, retains rudimentary and functional eyes.
View Article and Find Full Text PDFArtifacts at Cardiac MRI: Imaging Appearances and Solutions.
Radiographics
January 2025
From the Department of Radiology, Cardiovascular Imaging, Mayo Clinic, 200 1st St SW, Rochester, MN 559905 (P.S.R., P.A.A.); Department of Radiology, Division of Cardiothoracic Imaging, Jefferson University Hospitals, Philadelphia, Pa (B.S.); Department of Radiology, Baylor Health System, Dallas, Tex (P.R.); Department of Diagnostic Radiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong SAR (M.Y.N.); and Department of Diagnostic Radiology, Cleveland Clinic, Cleveland, Ohio (M.A.B.).
Cardiac MRI (CMR) is an important imaging modality in the evaluation of cardiovascular diseases. CMR image acquisition is technically challenging, which in some circumstances is associated with artifacts, both general as well as sequence specific. Recognizing imaging artifacts, understanding their causes, and applying effective approaches for artifact mitigation are critical for successful CMR.
View Article and Find Full Text PDFHeat acclimation mediates cellular protection via HSP70 stabilization of HIF-1α protein in extreme environments.
Int J Biol Sci
January 2025
Department of Otolaryngology Head and Neck Surgery/Deep Underground Space Medical Center, West China Hospital, Sichuan University, Chengdu, China.
Heat acclimation (HA) is an evolutionarily conserved trait that enhances tolerance to novel stressors by inducing heat shock proteins (HSPs). However, the molecular mechanisms underlying this phenomenon remain elusive. In this study, we established a HA mouse model through intermittent heat stimulation.
View Article and Find Full Text PDFProtective effects of docosahexaenoic acid combined with bilberry extract on myopic Guinea pigs.
Front Med (Lausanne)
December 2024
TowardPi Medical Technology Beijing, Beijing, China.
This study aims to investigate the protective effects of docosahexaenoic acid (DHA) combined with bilberry extract (BE) on myopic guinea pigs. In total, 105 healthy pigmented guinea pigs aged 2 weeks were selected and randomly divided into five groups. The normal control (NC) group received no treatment, while the experimental groups wore -6.
View Article and Find Full Text PDFPreliminary assessment of seed heteromorfism as an adaptive strategy of Colobanthus quitensis under saline conditions.
Sci Rep
December 2024
Laboratorio de Biotecnología y Estudios Ambientales, Departamento de Ciencias y Tecnología Vegetal, Escuela de Ciencias y Tecnologías, Universidad de Concepción, Campus Los Ángeles, 4440000, Concepción, Chile.
Colobanthus quitensis is known for enduring extreme conditions, such as high salinity in Antarctica, making it an excellent model for studying environmental stress. In plant families, variations in seed color heteromorphism have been linked to various germination under stress conditions. Preliminary laboratory observations indicated that dark brown seeds of C.
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