Publications by authors named "Jiawei Di"

Purpose: To explore the role of intraoperative prone lumbar fluoroscopy under anesthesia in guiding lowest instrumented vertebra (LIV) selection in adolescent idiopathic scoliosis (AIS) patients with lumbar structural curves and its subsequent impact on surgical outcomes.pap.

Methods: This retrospective cohort study included 45 AIS patients with lumbar structural curves who underwent posterior spinal deformity correction surgery at the Scoliosis Center, the Third Affiliated Hospital of Sun Yat-sen University between 2020 and 2022.

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Microglia, considered as the main immune responder, play an important role in regulating neuroinflammation in central nervous system (CNS) disorders. Our previous work found that TREM2 is highly expressed in microglia and is related to their functional state. However, the specific role of TREM2 in spinal cord injury has not yet been explored.

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Background Context: Spinal cord injury (SCI) causes neural circuit interruption and permanent functional damage. Magnetic stimulation in humans with SCI aims to engage residual neural networks to improve neurological functional, but the detailed mechanism remains unknown.

Purpose: This study evaluates functional recovery and neural circuitry improvements in rodent with double-target (brain and spinal cord) magnetic stimulation (DTMS) treatment and explores the effect of DTMS on the modulation of glial cells in vivo and in vitro.

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Mitophagy selectively eliminates damaged or dysfunctional mitochondria, playing a crucial role in maintaining mitochondrial quality control. However, it remains unclear whether mitophagy can be fully activated and how it evolves after SCI. Our RNA-seq analysis of animal samples from sham and 1, 3, 5, and 7 days post-SCI indicated that mitophagy was indeed inhibited during the acute and subacute early stages.

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Objective: Osteoarthritis (OA) is a degenerative joint disease associated with excessive mechanical loading. The aim here was to elucidate whether different subpopulations of chondrocytes exhibit distinct phenotypes in response to variations in loading conditions. Furthermore, we seek to investigate the transcriptional switches and cell crosstalk among these chondrocytes subsets.

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Triggering receptor expressed on myeloid cell 2 (TREM2) signaling often drives opposing effects in traumatic versus demyelinating CNS disorders. Here, we identify two distinct phenotypes of microglia and infiltrating myeloid populations dependent on TREM2 expression levels at the acute stage and elucidate how they mediate the opposing effects of TREM2 in spinal cord injury (SCI) versus multiple sclerosis animal models (experimental autoimmune encephalomyelitis [EAE]). High TREM2 levels sustain phagocytic microglia and infiltrating macrophages after SCI.

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Article Synopsis
  • Osteoarthritis (OA) is the most prevalent joint disease, and recent studies have identified different subpopulations of chondrocytes in OA using single-cell sequencing data from cartilage cells.
  • Seven distinct chondrocyte subpopulations were identified, each serving different functions related to stress metabolism, rhythmic activities, apoptosis, and matrix synthesis, among others, with varying roles in the early and late stages of cartilage damage.
  • Key findings highlight that stress-metabolizing chondrocytes are crucial in early damage stages to prevent degeneration, while matrix-synthesis-related chondrocytes play a significant role in late damage, potentially exacerbating cartilage issues; specific genes were identified as markers for these subpopulations.
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Introduction: A post-hoc subgroup analysis of prospective collected data in a randomized controlled trial (RCT) of minimally invasive discectomy was conducted, to find out the possible underlying reasons for patients with persistent low back pain (LBP) following surgery.

Materials And Methods: Patients who were diagnosed with lumbar disc herniation (LDH) and underwent either percutaneous transforaminal endoscopic discectomy or microendoscopic discectomy in our RCT were analyzed. Patients with persistent LBP in 2-year follow-up were compared with the non-LBP patients to determine the underlying reasons.

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The dynamic spreading process of mixed droplets on chemically heterogeneous surfaces has attracted significant attention owing to its extensive industrial applications. The spreading of mixture droplets on a chemically heterogeneous surface is more complex than that for pure fluid droplets and needs to be understood further. In this study, molecular dynamic simulations were performed to investigate the dynamic spreading process of R32/R1234yf mixture droplets and water/ethanol mixture droplets of radius 4.

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