Exploring the impact of pre-analytical processes on the determination of neuron-specific enolase in serum samples.

Objective: To explore pre-analysis factors affecting the results of neuron-specific enolase (NSE) testing of serum samples, select optimal testing conditions, and reduce the false-positive rate of NSE.

Methods: Serum NSE levels were measured using the Roche e801 electrochemiluminescence immunoassay in healthy participants who underwent physical examinations at the Fourth Affiliated Hospital of Soochow University from September 2022 to December 2024, including both outpatients and hospitalized patients. Further, we analyzed the effects of various pre-analytical factors on the NSE positivity rate (NSE>16.

[Progress in autophagy effect on the progression of SLE pathogenesis by regulating the immune system].

Autophagy is a fundamental biological metabolic process involved in immune defense, material metabolism, and homeostasis and closely linked to immune regulation. Systemic lupus erythematosus (SLE) is a widespread connective tissue disorder primarily resulting from immune system imbalance. Due to the immune system's failure to recognize its own substances, it generates autoantibodies that can affect various tissues and organs, leading to diverse clinical manifestations.

Paeoniflorin modulates AGEs/RAGE/P38MAPK/ERK/mTOR autophagy pathway to improve cognitive dysfunction in MRL/lpr mice.

Objective: The objective of this study was to investigate the therapeutic effects of paeoniflorin (PA) on cognitive impairment and to elucidate its potential mechanisms in MRL/lpr mice, a model of systemic lupus erythematosus-associated cognitive dysfunction.

Method: Cognitive performance and behavioral responses were assessed using a comprehensive battery of tests, including the Morris water maze, the Novel object recognition test, and the Y maze. Neuropathological changes in the hippocampal regions were visualized through Nissl, HE and Immunohistochemistry staining.

Ensuring Clinical Excellence: The Mindray SAL9000 Biochemical Immunoassay System.

This study aimed to evaluate the performance and clinical laboratory adaptability of the Mindray SAL9000 biochemical immunoassay automation system, ensuring compliance with ISO 15189 standards and relevant national requirements. We conducted comprehensive performance verification tests on 21 biochemical analytes and 15 immunoassays, including precision, accuracy, linear bias, measurement range assessments, interference testing, reference range validation, inter-instrument comparison, and carryover verification. The Mindray SAL9000 demonstrated high performance across various parameters, with all analytes showing good linearity and minimal bias.

The effect of PD-1/PD-L1 signaling axis on the interaction between CD19B cells and CD4T cells in peripheral blood of patients with systemic lupus erythematosus.

Background: The defect of B cell self-tolerance and the continuous antigen presentation by T cells (TCs) mediated by autoreactive B cells (BCs) play a key role in the occurrence and development of systemic lupus erythematosus (SLE). PD-1/PD-L1 signaling axis negatively regulates the immune response of TCs after activation and maintains immune tolerance. However, the effect of PD-1/PD-L1 signaling axis on the interaction between CD19B/CD4TCs in the peripheral blood of patients with SLE has not been studied in detail.

Albumin-Conjugated Lipid-Based Multilayered Nanoemulsion Improves Drug Specificity and Anti-Inflammatory Potential at the Spinal Cord Injury gSite after Intravenous Administration.

Albumin-conjugated multilayered nanoemulsion (albumin-MNE) of methyl prednisolone (MP) was developed to ensure the specificity of the drug at the spinal cord injury (SCI) site. MNE was prepared by emulsification followed by ionic deposition of oppositely charged polymer followed by albumin conjugation using N-hydroxysuccinimide. Prepared nanoemulsion was characterized for particle size, polydispersity index (PDI), zeta potential (Zp), pH, viscosity, and entrapment efficiency.

RBEL1 is required for osteosarcoma cell proliferation via inhibiting retinoblastoma 1.

Osteosarcoma is the most common type of primary malignant tumor of the bone. However, mechanisms underlying osteosarcoma cell proliferation are poorly understood. The present study shows that RBEL1, a newly identified Rab-like GTPase, may be a key regulator of osteosarcoma cell proliferation.

Risk factors for postoperative complication after spinal fusion and instrumentation in degenerative lumbar scoliosis patients.

Background: Relatively few studies have focused on the major medical complications that are more common in older adults. Furthermore, these studies have generally not reported how accurately a risk factor, or combination of risk factors, can distinguish between those who will have a complication and those who will not.

Methods: A total of 236 consecutive patients who had undergone surgical treatment for degenerative lumbar scoliosis between June 2008 and June 2012 were included retrospectively in this study.