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Thermal ocular burns and evaluation of associated limbal stem cell deficiency in the light of global consensus.
Int Ophthalmol
January 2025
Department of Ophthalmology, Ege University Faculty of Medicine, 35100, Bornova, Izmir, Türkiye.
Purpose: The aim of the present study is to examine the demographic data and clinical features of ocular surface injuries due to thermal burns and to evaluate LSCD in the light of global consensus.
Methods: Thirty-three eyes of 20 cases with ocular surface injury due to thermal burn who attended to the clinic between 2012 and 2023 were included in the study. LSCD severity was staged according to the global consensus which was published in 2019.
The Shab family potassium channels are highly enriched at the presynaptic terminals of human neurons.
J Biol Chem
January 2025
Biochemistry & Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA; Molecular, Cellular & Integrated Neurosciences, Colorado State University, Fort Collins, CO 80523, USA; Cell & Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA. Electronic address:
The Shab family voltage-gated K channels (i.e., Kv2.
View Article and Find Full Text PDFMitochondria-plasma membrane contact sites regulate the ER-mitochondria encounter structure.
J Cell Sci
January 2025
Department of Molecular Biosciences, Northwestern University, Evanston, IL 60208, USA.
Cells form multiple, molecularly distinct membrane contact sites (MCSs) between organelles. Despite knowing the molecular identity of several of these complexes, little is known about how MCSs are coordinately regulated in space and time to promote organelle function. Here, we examined two well-characterized mitochondria-ER MCSs - the ER-Mitochondria encounter structure (ERMES) and the mitochondria-ER-cortex anchor (MECA).
View Article and Find Full Text PDFTwo new enzymes that liberate undecaprenyl-phosphate to replenish the carrier lipid pool during envelope stress.
mBio
January 2025
Department of Microbiology, Harvard Medical School, Boston, Massachusetts, USA.
The 55-carbon isoprenoid, undecaprenyl-phosphate (UndP), is a universal carrier lipid that ferries most glycans and glycopolymers across the cytoplasmic membrane in bacteria. In addition to peptidoglycan precursors, UndP transports O-antigen, capsule, wall teichoic acids, and sugar modifications. How this shared but limited lipid is distributed among competing pathways is just beginning to be elucidated.
View Article and Find Full Text PDFFunctional Morphology of Hatching: Ontogeny and Distribution of Hatching Gland Cells in Red-Eyed Treefrogs and a New Marker for Anuran Hatching Enzyme.
J Morphol
February 2025
Department of Biology, Boston University, Boston, Massachusetts, USA.
Environmentally cued hatching (ECH) is widespread in animals and requires regulation of hatching mechanisms. Enzymatic digestion of the egg membrane is a common hatching mechanism in vertebrates and invertebrates. In amphibians and fishes, hatching enzymes (HE) are synthesized and released by hatching gland cells (HGC), whose functional ontogeny determines when hatching can occur.
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