White Matter Microstructure Correlates with Memory Performance in Healthy Children: A Diffusion Tensor Imaging Study
ABSTRACTBACKGROUND AND PURPOSEThe complex function of memory has been linked to both brain gray and white matter (WM). WM abnormalities are associated with memory impairment in pathological conditions. We investigated whether variation in WM microstructure in healthy children also correlates with memory performance.METHODSSixty ‐five 7.5 to 8.5‐year‐old healthy children had a brain MRI scan using diffusion tensor imaging (DTI). They were also assessed for memory performance using the Children's Memory Scale (CMS). Eight indices that evaluate verbal and visual memory (immediate and delayed) were measured. DTI paramete rs reflecting WM microstructure, including fractional anisotropy (FA), mean diffusivity (MD), radial diffusivity (RD), and axial diffusivity (AD), were calculated and correlated with memory indices.RESULTSTract ‐based spatial statistics analysis showed multiple WM tracts in which DTI parameters correlated with CMS indices. Specifically, FA (a reflection of WM integrity) and RD values (a reflection of myelination) in multiple projecting, association, and commissural WM tracts correlated with verbal delaye d index (P
Conclusion: Nano-Ag coating resulted in good antimicrobial activity; however, the biocompatibility was questionable. TiN nanocoating on an MG surface showed antibacterial properties with an optimal biocompatibility and maintained the "contact guidance" effects for HGFs. PMID: 32626766 [PubMed - in process]
Abstract Background: Concurrent chemoradiotherapy (CCRT) is the main treatment for esophageal cancer, but the response to treatment varies from individual to individual. MR imaging methods, such as diffusion-weighted (DW) MRI and the use of dynamic contrast-enhanced (DCE) MRI, have the potential to provide additional biomarkers that could evaluate the effect of CCRT in patients with esophageal carcinoma. Materials and Methods: Fifty-six patients with esophageal carcinoma, verified by histopathology, underwent MRI examination before and at midtreatment (4th week, radiotherapy 30-40 Gy) using the Siemens...
Conclusions and Inferences. These observations indicate that the population of SP-LI neurons supplying the stomach is not homogeneous and may undergo changes after ASA administration. These changes are probably connected with inflammatory processes and/or neuroprotective reactions although their exact mechanisms remain unknown. PMID: 32626731 [PubMed - in process]
Conclusion and Relevance. COVID-19 and influenza have overlapping chest CT features with few differences which can assist in telling apart the two pathologies. Additional studies are needed to further define the differences and degree between COVID-19 and influenza. PMID: 32596354 [PubMed - indexed for MEDLINE]
Publication date: October 2020Source: Epilepsy &Behavior, Volume 111Author(s): Bruce Lavin, Cassie Dormond, Morris H. Scantlebury, Pierre-Yves Frouin, Martin J. Brodie
Publication date: Available online 6 July 2020Source: IDCasesAuthor(s): Sepideh Mahdavi, Amirhessam Kheirieh, Salman Daliri, Mohammad Hossein Kalantar, Maryam Valikhani, Ahmad Khosravi, Mostafa Enayatrad, Mohammad Hassan Emamian, Reza Chaman, Marzieh Rohani-Rasaf
CONCLUSION: The present case-study revealed that the risk of silicosis from calcined diatomaceous earths used to produce dental alginates has been ignored. The lack of engineering controls and personal protection measures led to a high cristobalite lung burden, consistent with the development of a severe silicosis that were a contributing factor of death. A MSDS of a commercial product currently on the market does not report this serious hazard. PMID: 32624564 [PubMed - in process]
Publication date: Available online 6 July 2020Source: Journal of Cancer PolicyAuthor(s): Tim Eden, Elizabeth Burns, Piera Freccero, Lorna Renner, Vivian Paintsil, Mae Dolendo, Trisha Scanlan, Aye Aye Khaing, Martha Pina, Afiqul Islam, Catherine Chunda-Liyoka, Francine Kouya, Elizabeth Molyneux
Authors: Smolka S, Desai MY, Achenbach S Abstract The ISCHEMIA trial investigated two major principles in the therapy of coronary artery disease (CAD), i.e., symptom relief and improvement of prognosis. Specifically, it was designed to answer the question of whether, after ruling out left main stenosis, a routine interventional strategy in addition to optimal medical therapy can improve clinical outcome. Overall, this hypothesis could not be confirmed. Nevertheless, the trial yields interesting new aspects in the field of cardiac imaging. As a noninvasive diagnostic approach for individuals with suspected...
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