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Bioprinted optoelectronically active cardiac tissues.
Sci Adv
January 2025
Department of Electrical and Computer Engineering, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA.
Electrical stimulation of existing three-dimensional bioprinted tissues to alter tissue activities is typically associated with wired delivery, invasive electrode placement, and potential cell damage, minimizing its efficacy in cardiac modulation. Here, we report an optoelectronically active scaffold based on printed gelatin methacryloyl embedded with micro-solar cells, seeded with cardiomyocytes to form light-stimulable tissues. This enables untethered, noninvasive, and damage-free optoelectronic stimulation-induced modulation of cardiac beating behaviors without needing wires or genetic modifications to the tissue solely with light.
View Article and Find Full Text PDFLateral olivocochlear neurons modulate cochlear responses to noise exposure.
Proc Natl Acad Sci U S A
January 2025
Department of Neurobiology, Harvard Medical School, Boston, MA 02115.
The sense of hearing originates in the cochlea, which detects sounds across dynamic sensory environments. Like other peripheral organs, the cochlea is subjected to environmental insults, including loud, damage-inducing sounds. In response to internal and external stimuli, the central nervous system directly modulates cochlear function through olivocochlear neurons (OCNs), which are located in the brainstem and innervate the cochlear sensory epithelium.
View Article and Find Full Text PDFThe Biological Properties of Co-Doped Monetite Are Influenced by Thermal Treatment.
J Biomed Mater Res B Appl Biomater
February 2025
Bioassays and Cellular Dynamics Lab, Department of Chemical and Biological Sciences, Institute of Biosciences, UNESP: São Paulo State University, São Paulo, Brazil.
Calcium phosphates, notably monetite, are valued biomaterials for bone applications owing to their osteogenic properties and rapid uptake by bone cells. This study investigates the enhancement of these properties through Cobalt doping, which is known to induce hypoxia and promote bone cell differentiation. Heat treatments at 700°C, 900°C, and 1050°C are applied to both monetite and Cobalt-doped monetite, facilitating the development of purer, more crystalline phases with varied particle sizes and optimized cellular responses.
View Article and Find Full Text PDFRutin Alleviates Zearalenone-Induced Endoplasmic Reticulum Stress and Mitochondrial Pathway Apoptosis in Porcine Endometrial Stromal Cells by Promoting the Expression of Nrf2.
Toxins (Basel)
December 2024
College of Veterinary Medicine, Anhui Agricultural University, Hefei 230036, China.
Zearalenone (ZEA) is a mycotoxin commonly found in moldy cereals and has a range of toxic effects that have seriously affected animal husbandry. Rutin, a natural flavonoid with antioxidant activities, has been studied for its potential involvement in mitigating ZEA-induced apoptosis in porcine endometrial stromal cells (ESCs) and its potential molecular mechanism, particularly concerning the expression of Nrf2. This study investigates the molecular pathways by which rutin alleviates ZEA-induced ESC apoptosis, focusing on the role of Nrf2.
View Article and Find Full Text PDFRectus Abdominis Muscle Endometriosis: A Unique Case Report with a Literature Review.
Curr Issues Mol Biol
January 2025
Department of Diagnostic and Interventional Radiology, Clinical Hospital Centre Rijeka, Krešimirova 42, 51000 Rijeka, Croatia.
Introduction and importance: Extrapelvic endometriosis, confined exclusively to the body of the rectus abdominis muscle, is a rare form of abdominal wall endometriosis. While its etiopathology remains unclear, it is often diagnosed in healthy women who present with atypical symptoms and localization unrelated to any incision site, or in the absence of a history of endometriosis or previous surgery. Presentation of the case: Here, we describe a unique case of intramuscular endometriosis of the rectus abdominis muscle in a healthy 39-year-old Caucasian woman.
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