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[Effects of long non-coding RNA KLHL7-AS1 on the proliferation and apoptosis of nucleus pulposus cells under the environment of oxidative stress and its mechanism].
Zhonghua Yi Xue Za Zhi
February 2025
Department of Orthopedics, the First Hospital of Huaian City, Nanjing Medical University, Huaian 223300, China.
To investigate the effects of long non-coding RNA KLHL7-AS1 (LncRNA KLHL7-AS1) on the proliferation and apoptosis of nucleus pulposus cells under oxidative stress and its mechanisms. Human nucleus pulposus cells (HUM-iCell-s012) were divided into 4 groups, and unoxidized nucleus pulposus cells were transfected with an empty pcDNA vector (pcDNA-control) to serve as the blank control group. Based on previous studies on oxidative stress-induced nucleus pulposus cell senescence and preliminary experiments, oxidative stress was induced by treating nucleus pulposus cells with 400 μmol/L HO.
View Article and Find Full Text PDFPhysicochemical properties and biological interaction of calcium silicate-based sealers - in vivo model.
Clin Oral Investig
January 2025
Department of Restorative Dentistry - Endodontics, Faculdade de Odontologia de Piracicaba, Universidade Estadual de Campinas, Piracicaba, SP, Brazil.
Objectives: To investigate volumetric changes, in vivo biocompatibility, and systemic migration from eight commercial endodontic sealer materials in paste/paste, powder/liquid, and pre-mixed forms.
Materials And Methods: The sealers AH Plus Bioceramic, AH Plus Jet, BioRoot RCS, MTApex, Bio-C Sealer, Bio-C Sealer Ion+, EndoSequence BC Sealer and NeoSEALER Flo were studied. After characterisation by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), Raman spectroscopy and X-ray diffractometry (XRD), tubes were implanted in Wistar rats' alveolar bone and subcutaneous tissues.
Autophagy activation alleviates annulus fibrosus degeneration via the miR-2355-5p/mTOR pathway.
J Orthop Surg Res
January 2025
Orthopedic Institute, Department of Orthopaedic Surgery, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, 215006, Jiangsu, China.
Background: Intervertebral disc degeneration disease (IVDD) is a major cause of disability and reduced work productivity worldwide. Annulus fibrosus degeneration is a key contributor to IVDD, yet its mechanisms remain poorly understood. Autophagy, a vital process for cellular homeostasis, involves the lysosomal degradation of cytoplasmic proteins and organelles.
View Article and Find Full Text PDFShaking it off: loss of NHE3-mediated calcium reabsorption is compensated by the distal nephron.
Kidney Int
February 2025
Department of Pediatrics, The Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada. Electronic address:
Sodium reabsorption is tightly coupled to calcium reabsorption in the proximal tubule via the action of the Na/H exchanger isoform 3 (NHE3). Poulsen et al. provide evidence of reduced proximal calcium reabsorption in kidney tubule-specific NHE3-deficient mice that is compensated distally, unaltered phosphate homeostasis, and NHE3 involvement in the hypocalciuric effect of thiazides.
View Article and Find Full Text PDFThe Multifactorial Relationship Between Bone Tissue Water and Stiffness at the Proximal Femur.
Calcif Tissue Int
January 2025
Department of Bioengineering, Temple University, 1947 N. 12th St, Philadelphia, PA, 19122, USA.
Bone mechanical function is determined by multiple factors, some of which are still being elucidated. Here, we present a multivariate analysis of the role of bone tissue composition in the proximal femur stiffness of cadaver bones (n = 12, age 44-93). Stiffness was assessed by testing under loading conditions simulating a sideways fall onto the hip.
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