scholarly journals Magnetization transfer (MT) asymmetry around the water resonance in human cervical spinal cord

2009 ◽  
Vol 29 (3) ◽  
pp. 523-528 ◽  
Author(s):  
Man-Cheuk Ng ◽  
Jun Hua ◽  
Yong Hu ◽  
Keith D. Luk ◽  
Edmund Y. Lam
2018 ◽  
Vol 49 (6) ◽  
pp. 1777-1785 ◽  
Author(s):  
Benoit Combès ◽  
Laureline Monteau ◽  
Elise Bannier ◽  
Virginie Callot ◽  
Pierre Labauge ◽  
...  

2017 ◽  
Vol 16 ◽  
pp. 58-65 ◽  
Author(s):  
Alex K. Smith ◽  
Samantha By ◽  
Bailey D. Lyttle ◽  
Richard D. Dortch ◽  
Bailey A. Box ◽  
...  

2005 ◽  
Vol 54 (1) ◽  
pp. 201-206 ◽  
Author(s):  
Seth A. Smith ◽  
Golay Xavier ◽  
Fatemi Ali ◽  
Jones Craig K. ◽  
Raymond Gerald V. ◽  
...  

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Mark A. Hoggarth ◽  
James M. Elliott ◽  
Zachary A. Smith ◽  
Monica Paliwal ◽  
Mary J. Kwasny ◽  
...  

AbstractEach year, whiplash injuries from motor vehicle collisions (MVC) affect millions worldwide, with no strong evidence of pathology. While the majority recover soon after the injury, the same is not true for roughly 20% reporting higher levels of pain and distress, without diagnostic options. This study used magnetization transfer (MT) imaging to quantify white matter integrity in 78 subjects with varying levels of pain, 1 year after MVC. MT images of the cervical spinal cord were collected parallel to the intervertebral disks. MT ratios (MTR) were calculated in select white matter tracts along with MTR homogeneity (MTRh) at each level. Significant differences were observed between clinical outcome groups in the left and right spinothalamic tracts (p = 0.003 and 0.020) and MTRh (p = 0.009). MTRh was elevated in females with poor recovery versus females reporting recovery (p < 0.001) or milder symptoms (p < 0.001), and in males reporting recovery (p = 0.007) or no recovery (p < 0.001). There was a significant interaction between recovery status and sex (p = 0.015). MT imaging identified tract specific and regional changes in white matter integrity suggesting potential insults to the cord. Additionally, significant MTRh differences between sexes were observed, characterizing the heterogeneity of whiplash recovery and worse outcomes in females.


2009 ◽  
pp. n/a-n/a ◽  
Author(s):  
Seth A. Smith ◽  
Craig K. Jones ◽  
Aliya Gifford ◽  
Visar Belegu ◽  
BettyAnn Chodkowski ◽  
...  

2008 ◽  
Vol 61 (1) ◽  
pp. 22-27 ◽  
Author(s):  
Seth A. Smith ◽  
Xavier Golay ◽  
Ali Fatemi ◽  
Asif Mahmood ◽  
Gerald V. Raymond ◽  
...  

2017 ◽  
Vol 79 (5) ◽  
pp. 2576-2588 ◽  
Author(s):  
Marco Battiston ◽  
Francesco Grussu ◽  
Andrada Ianus ◽  
Torben Schneider ◽  
Ferran Prados ◽  
...  

Author(s):  
L. Vacca-Galloway ◽  
Y.Q. Zhang ◽  
P. Bose ◽  
S.H. Zhang

The Wobbler mouse (wr) has been studied as a model for inherited human motoneuron diseases (MNDs). Using behavioral tests for forelimb power, walking, climbing, and the “clasp-like reflex” response, the progress of the MND can be categorized into early (Stage 1, age 21 days) and late (Stage 4, age 3 months) stages. Age-and sex-matched normal phenotype littermates (NFR/wr) were used as controls (Stage 0), as well as mice from two related wild-type mouse strains: NFR/N and a C57BI/6N. Using behavioral tests, we also detected pre-symptomatic Wobblers at postnatal ages 7 and 14 days. The mice were anesthetized and perfusion-fixed for immunocytochemical (ICC) of CGRP and ChAT in the spinal cord (C3 to C5).Using computerized morphomety (Vidas, Zeiss), the numbers of IR-CGRP labelled motoneurons were significantly lower in 14 day old Wobbler specimens compared with the controls (Fig. 1). The same trend was observed at 21 days (Stage 1) and 3 months (Stage 4). The IR-CGRP-containing motoneurons in the Wobbler specimens declined progressively with age.


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