Publications by authors named "Ya-Qun Ma"

The translocator protein (TSPO), once known as peripheral-type benzodiazepine receptor, was reported to be related with several physiological functions. Etifoxine is a clinically available anxiolytic drug, and has recently shown neuroprotective effects as a TSPO ligand. The aim of the present study was to investigate the influence of etifoxine on LPS-induced neuroinflammation and cognitive dysfunction.

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Translocator protein 18 kDa (TSPO) is mainly distributed in the outer mitochondrial membrane of steroid-synthesizing cells in the central and peripheral nervous systems. It mediates cholesterol transportation across the phospholipid membrane, which is a prerequisite for neurosteroid synthesis. Though the ligand of TSPO has clinical value in the diagnosis and treatment of neuropsychiatric disorders, the pharmacological study of TSPO for anti-postpartum depression has not been reported.

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Article Synopsis
  • Clear cell meningioma (CCM) is a rare type of tumor in the nervous system, and spinal CCMs are even less common, with fewer than 100 cases documented in English literature.
  • In a study analyzing 84 spinal CCM cases, it was found that a majority of patients were young (especially those ≤18 years old) and mostly female, with most tumors located in the lumbar area.
  • Factors linked to higher recurrence rates include being younger than 18, having a subtotal tumor resection, and involvement of three or more spinal segments, with recurrence-free survival decreasing over time (87% at 1 year, 71% at 5 years, and 47% at 10 years).
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  • Differentiating between sepsis and non-infectious SIRS is complex, and this study investigates the effectiveness of Interleukin 6 (IL-6) as a potential biomarker for diagnosing sepsis.
  • A meta-analysis of 22 studies involving 2,680 critically ill patients found that IL-6 has moderate diagnostic performance, with sensitivity and specificity of 0.68 and 0.73, respectively.
  • The study concludes that IL-6's diagnostic ability is comparable to procalcitonin (PCT) but superior to C-reactive protein (CRP), and it suggests using IL-6 as a confirmatory test for infections in patients showing SIRS symptoms.
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The translocator protein 18kDa (TSPO) is closely related to regulation of immune/inflammatory response. However, the putative role and signaling mechanisms of TSPO in regulation of neuroinflammation remain unclear. GV287 lentiviral vectors mediating TSPO over-expression were injected into bilateral hippocampal CA1 areas to test whether TSPO over-expression was neuroprotective in lipopolysaccharide (LPS)-induced mice model.

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Translocator protein 18 kDa (TSPO) is now an attractive drug target for controlling neuroinflammation. Studies applying TSPO ligands to neurodegenerative diseases, especially Alzheimer's disease (AD), were rare. Our study was aimed to evaluate the effect of PK11195, a specific TSPO ligand, in an animal model of neuroinflammation caused by systemic LPS administration.

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Tissue-type plasminogen activator (t-PA) and matrix metalloproteinase-9 (MMP-9) have been reported to play important roles in increased permeability of blood-brain barrier (BBB) under many pathological circumstances. We have showed that Ulinastatin, a broad-spectrum serine protease inhibitor, could alleviate inflammation in the hippocampus of aged rats following partial hepatectomy. In this study, we investigate the expression and potential roles of t-PA and MMP-9 in the protective effect of Ulinastatin.

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Midazolam is a benzodiazepine derivative drug that has powerful anxiolytic, amnestic, hypnotic, and sedative properties. The cytoprotective effect of midazolam on brain astrocytes is poorly understood. This study aimed to investigate the cytoprotective effect of midazolam on astrocytes exposed to corticosterone, a stress-produced glucocorticoid.

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Postoperative cognitive dysfunction (POCD) is very common complication of surgery in aged individuals. Accumulated evidence suggests that neuroinflammation may be the underlying cause of POCD. The aim of the present study was to investigate the effects of ulinastatin (UTI) on neuroinflammation and on learning and memory of aged rats after anesthesia and surgery.

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Article Synopsis
  • Advances in minimally invasive surgical techniques have enabled endoscopic repairs for neonatal esophageal atresia with tracheoesophageal fistula (EA/TEF), but these procedures are still limited to a few specialized centers worldwide.
  • This study compared the outcomes of thoracoscopic repair (TR) and open repair (OR) for newborns with EA/TEF, focusing on factors such as operative time, respiratory parameters, and recovery times.
  • Results indicated that although the TR approach took longer, it resulted in a shorter time to extubation compared to OR, with both procedures ultimately showing similar safety and effectiveness despite minor respiratory changes during surgery.
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Background: Awareness is a serious complication of general anesthesia. In China, the incidence of intraoperative awareness was 1% in patients undergoing total intravenous anesthesia (TIVA). In this study, we compared the incidence of awareness between Bispectral index (BIS)-guided and routine TIVA protocol and evaluated the effect of BIS on preventing awareness.

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Objective: While internationally major disasters occur frequently, for any one country they are unusual events. In this project we aimed to identify public health issues arising from the physical and mental health symptoms suffered by the soldier volunteers deployed in an emergency relief task during the Wenchuan earthquake.

Methods: Health problems identified in other emergency volunteer populations guided the development of a questionnaire.

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Objective: To investigate the influence of a catastrophic event to the physical and mental health of inhabitants in "5.12 serious earthquake in Wenchuan county".

Methods: The analysis of descriptive epidemiology on the spot was made in 3006 servicemen who were living in the disaster area of Wenchuan county and Dujiangyan city.

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