Publications by authors named "Tengkun Yin"

Introduction: The administration of intravenous thrombolysis (IVT) before mechanical thrombectomy (MT) in the treatment of acute ischemic stroke (AIS) has been a subject of debate, and its potential benefits remain uncertain. This retrospective study aimed to investigate the effect of preoperative IVT on glycocalyx damage in patients with cerebral ischemia-reperfusion injury (IRI).

Methods: A cohort of 106 patients with acute large vessel occlusion in the anterior circulation treated with mechanical thrombectomy was enrolled.

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Article Synopsis
  • Cerebral ischemia (CI) triggers a strong neuroinflammatory response, and the study investigates how exosomes from adipose-derived stem cells (ADSC-exosomes) containing microRNA-21-5p contribute to this process.
  • The study identifies that miR-21-5p is down-regulated during CI and helps reduce neuroinflammation and damage by activating the PIK3R1/PI3K/AKT signaling pathway.
  • Findings suggest that miR-21-5p from ADSC-exosomes enhances recovery after CI by promoting the polarization of M2 microglia, which are associated with anti-inflammatory responses.
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Background: Previously, we revealed noticeable dynamic fluctuations in syndecan-1 levels in the peripheral blood of post-stroke patients. We further investigated the clinical prognostic value of syndecan-1 as a biomarker of glycoprotein damage in patients with acute ischaemic stroke (AIS).

Methods: We examined 105 patients with acute large vessel occlusion in the anterior circulation, all of whom underwent mechanical thrombectomy (MT).

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Background: The gut microbiota (GM) is believed to be closely associated with symptomatic carotid atherosclerosis (SCAS), yet more evidence is needed to substantiate the significant role of GM in SCAS. This study, based on the detection of bacterial DNA in carotid plaques, explores the characteristics of GM in SCAS patients with plaque bacterial genetic material positivity, aiming to provide a reference for subsequent research.

Methods: We enrolled 27 healthy individuals (NHF group) and 23 SCAS patients (PFBS group).

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Background: Neuroinflammatory response contributes to early neurological deterioration (END) and unfavorable long-term functional outcome in patients with acute ischemic stroke (AIS) who recanalized successfully by endovascular thrombectomy (EVT), but there are no reliable biomarkers for their accurate prediction. Here, we sought to determine the temporal plasma profiles of the bioactive lipid mediators lipoxin A4 (LXA4), resolvin D1 (RvD1), and leukotriene B4 (LTB4) for their associations with clinical outcome.

Methods: We quantified levels of LXA4, RvD1, and LTB4 in blood samples retrospectively and longitudinally collected from consecutive AIS patients who underwent complete angiographic recanalization by EVT at admission (pre-EVT) and 24 hrs post-EVT.

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Objective: The purpose of the present study was to investigate the relationship between the intrasellar pressure (ISP) and the microvascular structure of pituitary adenomas.

Methods: We retrospectively analyzed the ISP in 66 patients with pituitary adenomas. The corresponding microvascular structure was obtained using immunohistochemistry and analyzed for its correlation with the ISP.

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Lupeol has been reported to exhibit anti-inflammatory and anti-tumor activities in many diseases, but its potential effects in cerebral ischemia injury have not been studied to date. In this work we present evidence for a beneficial effect of lupeol in a rat model of middle cerebral artery occlusion (MCAO) followed by reperfusion (MCAO/R) injury and provide some histological and biochemical evidence for its mechanism of action. A cerebral MCAO rat model was established by vascular occlusion for 2 h, followed by 24 h reperfusion period.

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Background: Venous collaterals form because of occlusion of the superior sagittal sinus (SSS), thus preserving venous drainage. Previous studies have focused on the evaluation and protection of sinuses and cortical veins and have neglected the collaterals between the SSS and deep venous system, which are important for surgical planning. We aimed to study the venous compensatory patterns inside and on both sides of the cerebral falx (parafalx) in patients with meningioma invading the SSS.

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Background: Parasagittal meningioma (PSM) has a high incidence of peritumoral edema and unclear pathogenesis. The venous compression theory has been proposed as a pathomechanism; however, this is controversial, and the various edema patterns have not been recognized.

Objective: We sought to establish the relationship between venous circulation status with different edema patterns in PSM and the neurologic outcomes of these different patterns.

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MicroRNAs are short non-coding RNAs that play important roles in gliomas. However, the role of miR-130b in glioma remains unclear. In the present study, miR-130b expression was upregulated in glioma tissues and cell lines.

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Background: Operation of cortical veins is the keystone of parasagittal meningioma (PSM) resection. Little is known about pathologic changes of the veins and proper treatment. We built 3-dimensional (3D) image fusion models by neuronavigation to analyze the features of peritumoral cortical veins for PSMs and explore intraoperative treatment options.

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