Yakovlev's Basolateral Limbic Circuit in Multiple Sclerosis Related Cognitive Impairment.

Yakovlev's Basolateral Limbic Circuit in Multiple Sclerosis Related Cognitive Impairment.
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DOI:
10.1111/jon.12531
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发表时间:
2018-11
期刊:
Journal of neuroimaging : official journal of the American Society of Neuroimaging
影响因子:
--
通讯作者:
Hasan KM
Hasan KM
中科院分区:
其他
文献类型:
--
作者:
Keser Z;Kamali A;Younes K;Schulz PE;Nelson FM;Hasan KM

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1948年,Paul Yakovlev描述了一个位于James Papez回路(1937)基底外侧的额外边缘回路,包括眶额皮质、杏仁核和丘脑背内侧核。这个回路被证明是皮层下认知能力的重要组成部分。我们的目的是在多发性硬化症(MS)队列中使用弥散张量成像(DTI)证明该回路,并评估其在MS相关认知障碍(CI)中的作用。我们招募了认知功能完整(n=10)和受损(n=36)的MS患者,他们接受了全面的认知评估;多发性硬化症认知功能最小评估(MACFIMS)和结构磁共振成像(MRI)。校正年龄、受教育程度和病变负荷后,计算眶额丘脑(OFT)、杏仁丘脑束(ATT)和丘脑背内侧核的体积和DTI值与MACFIMS导出的CI指数的相关性分析。我们观察到CI指数与双侧背内侧核平均扩散率(MD)(r=0.316; p:0.02)、左侧OFT FA(r:-0.302; p:0.02)、MD(r=0.380; 0.006)和径向扩散率(RD)(r=0.432; p:0.002)以及右侧ATT FA(r=-0.475; p:0.0006)和左侧ATT FA(r=-0.487; p:0.0005)之间的趋势一致。经Bonferroni校正后,发现左侧OFT RD、右侧和左侧ATT FA与CI的相关性显著。我们的研究提供了在体内的DTI描绘雅科夫列夫的历史基底外侧边缘回路,并建立了在MS相关的CI的作用。这些发现可能为未来使用靶向侵入性和非侵入性神经刺激模式治疗MS认知障碍的临床研究铺平道路。
In 1948, Paul Yakovlev described an additional limbic circuit located basolateral to James Papez’s circuit (1937) and included orbitofrontal cortex, amygdala and dorsomedial nucleus of thalamus. This circuit is shown to be an important component of subcortical cognitive abilities. We aimed to demonstrate this circuit in a multiple sclerosis (MS) cohort, using diffusion tensor imaging (DTI) and evaluate its role in MS related cognitive impairment (CI). We enrolled cognitively intact (n=10) and impaired (n=36) MS patients who underwent a comprehensive cognitive assessment; the Minimal Assessment of Cognitive Function in Multiple Sclerosis (MACFIMS) and structural magnetic resonance imaging (MRI). Correlation analyses between volumetric and DTI derived values of the orbitofrontothalamic (OFT), amygdalothalamic tracts (ATT) and dorsomedial nucleus of thalamus and CI index derived from MACFIMS were computed after adjustment for age, education and lesion load. We observed a consistent trend between CI index and bilateral dorsomedial nucleus’ mean diffusivity (MD) (r=0.316; p: 0.02), left OFT FA (r:−0.302; p:0.02), MD (r=0.380; 0.006), and radial diffusivities (RD) (r=0.432; p:0.002), also with right ATT FA (r=−0.475; p:0.0006) and left ATT FA (r=−0.487; p:0.0005). After Bonferroni correction, correlations of left OFT RD, right and left ATT FA with CI were found to be significant. Our study provides in vivo DTI delineation of Yakovlev’s historical basolateral limbic circuit and establishes a role in MS related CI. These findings may potentially pave the way for future clinical studies using targeted invasive and non-invasive neurostimulation modalities for cognitive impairment in MS.
DOI: 10.1523/jneurosci.4184-11.2011
发表时间: 2011-11-16
期刊: The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子: --
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发表时间: 2017-05
期刊: Multiple sclerosis (Houndmills, Basingstoke, England)
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