脑卒中后转运蛋白表达动态及其与慢性梗死的相关性:一项[123]-CLINDE-SPECT研究。

IF 2.3 4区 医学 Q3 CLINICAL NEUROLOGY
Per Jensen, Brice Ozenne, Per Meden, Ling Feng, Gerda Thomsen, Lars Knudsen, Henrik Steglich-Arnholm, Kirsten Møller, Carsten Thomsen, Claus Svarer, Vincent Beliveau, Jens Mikkelsen, Gitte Knudsen, Lars H Pinborg
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引用次数: 0

摘要

背景与目的:本研究旨在探讨脑卒中后不同脑区转运蛋白(TSPO)的纵向变化及其与慢性脑梗死的潜在关联。方法:12例患者在大脑中动脉缺血性梗死后10、41和128天(中位数),使用TSPO示踪剂6-氯-2-(4′- 123i -碘苯基)-3-(N,N-二乙基)-咪唑[1,2-a]吡啶-3-乙酰胺进行SPECT和结构MRI检查。TSPO在病变区(MRI病变和SPECT病变)、连接区(脑桥和同侧丘脑)和非连接区(同侧小脑和对侧枕皮质)中表达。结果:在整个研究期间,病变roi中TSPO水平下降了24%-33%,而连接roi中TSPO水平上升了35%-69%,非连接roi中TSPO水平上升了53%-77%。脑卒中后128天,同侧小脑TSPO表达与慢性梗死体积呈正相关(p = 0.002, r2 = 0.72)。结论:本研究通过量化脑梗死后三个时间点病灶区、连接区和非连接区TSPO的变化,以及晚期TSPO上调与慢性梗死体积的关系,扩展了目前对人类TSPO时空表达的认识。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Poststroke Translocator Protein Expression Dynamics and Correlations to Chronic Infarction: A [123I]-CLINDE-SPECT Study

Poststroke Translocator Protein Expression Dynamics and Correlations to Chronic Infarction: A [123I]-CLINDE-SPECT Study

Background and Purpose

This study aims to investigate the longitudinal changes in translocator protein (TSPO) following stroke in different brain regions and potential associations with chronic brain infarction.

Methods

Twelve patients underwent SPECT using the TSPO tracer 6-Chloro-2-(4ʹ-123I-Iodophenyl)-3-(N,N-Diethyl)-Imidazo[1,2-a]Pyridine-3-Acetamide, as well as structural MRI, at 10, 41, and 128 days (median) after ischemic infarction in the middle cerebral artery. TSPO expression was measured in lesional (MRI lesion and SPECT lesion), connected (pons and ipsilesional thalamus), and nonconnected (ipsilesional cerebellum and contralesional occipital cortex) regions. Correlations were explored between the volume of chronic infarction and TSPO expression in nonconnected regions of interest (ROIs) at 128 days

Results

Throughout the study period, TSPO levels decreased by 24%–33% in lesional ROIs, while levels increased in connected ROIs by 35%–69% and in nonconnected ROIs by 53%–77%. At 128 days poststroke, TSPO expression in ipsilesional cerebellum positively correlated with chronic infarction volume (p = 0.001, r2 = 0.78).

Conclusions

This study expands the current knowledge of spatial and temporal TSPO expression in humans by quantifying TSPO changes in lesional, connected, and nonconnected brain regions at three time points after cerebral infarction as well as correlating late-stage TSPO upregulation and chronic infarction volume.

[Correction added on January 29, 2025, after first online publication: The p and r2 values in the results section of the abstract have been corrected in this version].

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来源期刊
Journal of Neuroimaging
Journal of Neuroimaging 医学-核医学
CiteScore
4.70
自引率
0.00%
发文量
117
审稿时长
6-12 weeks
期刊介绍: Start reading the Journal of Neuroimaging to learn the latest neurological imaging techniques. The peer-reviewed research is written in a practical clinical context, giving you the information you need on: MRI CT Carotid Ultrasound and TCD SPECT PET Endovascular Surgical Neuroradiology Functional MRI Xenon CT and other new and upcoming neuroscientific modalities.The Journal of Neuroimaging addresses the full spectrum of human nervous system disease, including stroke, neoplasia, degenerating and demyelinating disease, epilepsy, tumors, lesions, infectious disease, cerebral vascular arterial diseases, toxic-metabolic disease, psychoses, dementias, heredo-familial disease, and trauma.Offering original research, review articles, case reports, neuroimaging CPCs, and evaluations of instruments and technology relevant to the nervous system, the Journal of Neuroimaging focuses on useful clinical developments and applications, tested techniques and interpretations, patient care, diagnostics, and therapeutics. Start reading today!
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