To study the mechanisms of immunocompetent cells' response to long-wave laser radiation in male Chinchilla rabbits after in vivo emission (lambda = 632.8 nm; emissive power, 19 mW) for 15 min, lymphocytes and thymocytes were identified in the projection areas of the thymus and femur and the levels of NADP-dependent dehydrogenases were measured. The changes found in the levels of thymocyte NADP-dependent dehydrogenases while exposing the rabbits to radiation in the area of the femur, as well as the area-related differences in the modulating effects of laser radiation on the activity of the lymphocytic enzymes under study indicate the mediated cellular metabolic regulation which is likely to be chiefly affected by the autonomic nervous system in the first postradiation minutes.
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Transl Vis Sci Technol
January 2025
Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.
Purpose: The purpose of this study was to characterize whether pulsed ultrasound (PUS) affects transscleral drug delivery.
Methods: Fluorescein sodium (NaF, 376 Da) and fluorescein isothiocyanate-conjugated dextran 40 (FD-40, 40 kDa) were used as model drugs. Human sclera grafts were placed in modified Franz diffusion cells and were treated by PUS (1 megahertz [MHz], 0.
Alzheimers Dement
December 2024
Department of Radiology, Mayo Clinic, Rochester, MN, USA.
Background: Parkinson's disease and dementia with Lewy bodies are characterized by abnormal iron deposition in the substantia nigra, which can be measured with quantitative susceptibility mapping (QSM) on MRI. However, neuropathologic validation of the increased QSM in the substantia nigra associated with Lewy body disease (LBD) is lacking. We compared substantia nigra QSM on antemortem MRI between patients with and without Lewy-related pathology which was confirmed by autopsy in all cases.
View Article and Find Full Text PDFActa Chir Orthop Traumatol Cech
January 2025
Ortopedická klinika, Fakultní nemocnice Hradec Králové.
Purpose Of The Study: The preclinical study aimed to compare the healing of segmental bone defects treated with biodegradable hyaluronic acid and tricalcium phosphate-based hydrogel with the established autologous spongioplasty. Another aim was to evaluate the hydrogel as a scaffold for osteoinductive growth factor of bone morphogenetic protein-2 (BMP-2) and stem cells.
Material And Methods: The study was conducted in an in vivo animal model.
AJNR Am J Neuroradiol
January 2025
From the Institute of Neurointervention (C. Hecker, C. Hufnagl, A.O., C.J.G., M.K-O.), Paracelsus Medical University, Salzburg, Austria
Background And Purpose: This animal study was designed to evaluate in vivo the acute and short-term safety and efficacy of the new Artisse intrasaccular device (ISD) for aneurysm occlusion and to gain knowledge about the behavior in the aneurysms.
Materials And Methods: The device was implanted in 7 white New Zealand rabbits with bifurcation aneurysms. Immediate and 90-day angiographic follow-up as well as histologic and scanning electron microscope imaging were evaluated.
J Mol Histol
January 2025
School of Stomatology, The First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, 150000, China.
Facial nerve injuries lead to significant functional impairments and psychological distress for affected patients. Effective repair of these injuries remains a challenge. For longer nerve gaps, the regeneration outcomes after nerve grafting remain suboptimal due to limited sources and postoperative immune responses.
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