[PDF] Top 20 Diffusion Changes in the Aging Human Brain

... age, diffusion is increased com- pared with older children and ...myelinated brain. Prior published studies have also suggested that diffusion increases in the elderly ...using ... See full document

... metabolite changes occurring with aging, it is still sensitive to possible B1 field inhomogeneities or reference variations, which may increase the measurement ...of brain (15, 30, ... See full document

... the human brain change dy- namically during its development and ...the human cognitive function, occur mainly in the period between birth and adulthood, and some developmental processes extend into ... See full document

... underestimate the fiber tracts. DTI is a powerful anatomic imaging method that can demonstrate the gross fiber archi- tecture; however, it is difficult to reflect all fibers. Second, regions of fiber complexity and ... See full document

... that diffusion tensor imaging may identify changes in brain tissue status during asymptomatic periods; region-specific anisotropy dis- tinguished patients from control participants in a study of ... See full document

... volume changes in the brain caused by aging and/ or pathological ...the brain, the clustering technique is adopted towards segmenting the image into separate compartments of white and gray ... See full document

... age-related changes in the hippocampus. Animal and human postmortem studies reveal age-associated changes in the hip- pocampus; it is unlikely that in healthy humans this region is resistant to the ... See full document

... The human brain changes substantially during matu- ...whole brain, forebrain, and brainstem during prenatal de- velopment to 8 years of age ...for brain development (1, 2). Quantifying ... See full document

... entiate brain cellular effects from the genuine epigenetic ...to changes in cell composition; though the confounding effects of cellular composition should be explored in greater ... See full document

... analyses. The brains and spinal cords were fixed in 20 % buffered formalin (WAKO, Osaka, Japan) for 7– 13 days. After fixation in formalin, the cerebral hemi- spheres, brainstem, and cerebellum were dissected along the ... See full document

... TABLE 1: Average of anisot ropic ratios in frontal and occipital lobes among neonates, infants, children, and adults Apparent Diffusion Coefficient 90/ 0 m ean ± SD.. Frontal lobe Occipi[r] ... See full document

... global changes in brain diffusion accompany- ing normal aging that are present despite the ab- sence of white matter ...in diffusion anisotropy in the corpus cal- losum, periventricular ... See full document

... on Aging (NIA) and the National Institute of Biomedical Imaging and Bioengineer ing, and through gen- erous contributions from the follow ing: AbbVie, Alzheimer’s Association; Alzheimer’s Drug Discovery ... See full document

... the human ApolipoproteinE (ApoE) e4 allele under a neuron specific promoter have increased phosphorylation of ERK1/2 and Tau in areas of the hippocampus and cortex where zinc- secreting neurons are concentrated ... See full document

... functional brain circuitry provided by closely-related species that perform analogous behaviors differently, together with the ability to substitute developing cell groups within the brain, provides a ... See full document

... MR imaging was performed on a 1.5T ACS-Intera system (Philips Healthcare, Best, the Netherlands) with a protocol that included a T2-weighted fast spin-echo sequence and a FLAIR sequence. Section thickness was 5 mm with a ... See full document

... Primary human epidermis samples were obtained as suction blisters from the inner forearm of five female donors from two distinct age groups (18–24 years and 70–75 years, see Additional file 1: Table S1 for ... See full document

... When crossing mice deficient for C1q and APP transgenic animals, Fonseca and co-workers [25] observed a reduc- tion in amyloid associated glial and neuritic pathology, whereas amyloid deposition seemed unaffected. In ... See full document

... of diffusion-encoding gradient direc- tions (NDGD). At least 6 diffusion-weighted (DW) images for every section (ie, NDGD ⫽ 6) are needed to calculate the dif- fusion tensor (D), and all DTI indices are ... See full document

... the brain were decreased by 49%–72% compared with healthy living ...hypoxic brain injury than in brains from subjects having died from heart failure (traumatic brain injury, P ⬍ ... See full document