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| http://dx.doi.org/10.4103/1673-5374.385868 | DOI Listing |
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Background: Transfusion-associated hypotension (TAH) is characterized by the abrupt onset of hypotension immediately after the start of transfusion and usually resolves when transfusion ceases. The pathogenesis of TAH is not yet fully understood.
Methods: A 36-year-old woman underwent exploratory laparotomy and cesarean section due to cervical squamous cell carcinoma.
Antigen Specificity: A Fluctuating Aspect in the Development of Clinical Antibodies?
APMIS
January 2025
Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER), Mohali, Punjab, India.
Development of antibodies for clinical use is a complex process involving numerous aspects, with antigen specificity being the most important. Initially, polyclonal antibodies, that can recognize multiple specific and nonspecific antigens (polyreactive), were developed and were very effective in the treatments. Later on, the polyspecificity/polyreactivity of these polyclonal antibodies (binding to multiple antigens) raised concerns about therapeutic efficacy because of their nonspecific interactions and challenges, such as development of immune complexes, batch-to-batch variability.
View Article and Find Full Text PDFThe microenvironment cell index is a novel indicator for the prognosis and therapeutic regimen selection of cancers.
J Transl Med
January 2025
Department of Stem Cell and Regenerative Medicine, Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.
Background: It is worthwhile to establish a prognostic prediction model based on microenvironment cells (MCs) infiltration and explore new treatment strategies for triple-negative breast cancer (TNBC).
Methods: The xCell algorithm was used to quantify the cellular components of the TNBC microenvironment based on bulk RNA sequencing (bulk RNA-seq) data. The MCs index (MCI) was constructed using the least absolute shrinkage and selection operator Cox (LASSO-Cox) regression analysis.
Fast Neuronal Calcium Signals in Brain Slices Loaded With Fluo-4 AM Ester.
Eur J Neurosci
January 2025
Université Grenoble Alpes, CNRS, LIPhy, Grenoble, France.
Staining brain slices with acetoxymethyl ester (AM) Ca dyes is a straightforward procedure to load multiple cells, and Fluo-4 is a commonly used high-affinity indicator due to its very large dynamic range. It has been shown that this dye preferentially stains glial cells, providing slow and large Ca transients, but it is questionable whether and at which temporal resolution it can also report Ca transients from neuronal cells. Here, by electrically stimulating mouse hippocampal slices, we resolved fast neuronal signals corresponding to 1%-3% maximal fluorescence changes.
View Article and Find Full Text PDFUltrafast multicellular calcium imaging of calcium spikes in mouse beta cells in tissue slices.
Acta Physiol (Oxf)
February 2025
Faculty of Medicine, University of Maribor, Maribor, Slovenia.
Background: The crucial steps in beta cell stimulus-secretion coupling upon stimulation with glucose are oscillatory changes in metabolism, membrane potential, intracellular calcium concentration, and exocytosis. The changes in membrane potential consist of bursts of spikes, with silent phases between them being dominated by membrane repolarization and absence of spikes. Assessing intra- and intercellular coupling at the multicellular level is possible with ever-increasing detail, but our current ability to simultaneously resolve spikes from many beta cells remains limited to double-impalement electrophysiological recordings.
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