Both 5-HT and FMRF-amide immunoreactive nerve fibers were also observed throughout the neuropils
of the ganglia.
16) As one might expect, the neuropil
islands are distinguished by strong immunostaining for synaptophysin, and nuclei of cells embedded in the islands may show reactivity for neuN and anti-Hu (Figures 10 and 11).
Second, they suggest that the brain possesses clearance mechanisms that can compensate for the abnormal generation of A[Beta] for many years before this peptide becomes deposited in the neuropil
When tau is hyperphosphorylated, primarily by the action of serine/threonine kinases, it dissociates from microtubules, leading to the formation of paired helical fragments that, in turn, aggregate into neurofibrillary tangles and neuropil
Extracellular and Connective Tissue Components Background stroma Neuropil
Neuroblastoma Desmoplasia Desmoplastic small cell tumor Myxoid Liposarcoma, embryonal rhabdomyosarcoma Calcifications Neuroblastoma, synovial sarcoma, and MNST Lymphoglandular Non-Hodgkin lymphoma bodies Other elements Neuronal cells Neuroblastoma, ectomesenchymoma Rhabdomyoblasts Rhabdomyosarcoma Cross-striations Rhabdomyosarcoma Blastema/ Nephroblastoma, pleuropulmonary epithelium blastoma Abbreviation: MNST, malignant nerve sheath tumor.
The generalized histopathology reveals spongiform degeneration in the neuropil
of the brain and spinal cord.
This space (the neuropil
) represents 90-98% of the volume of the human cerebral cortex, with an estimated 1bn synapses per cubic nanometer of neuropil
distribution in the cerebral cortex differs between humans and chimpanzees.
Varicose GABA-ir fibers could be seen in the neuropil
areas and in distinct areas of the cell body layer of the ganglia.
We will start by analysing the function, development and connectivity of a newly characterized class of inhibitory interneurons located in the superficial part of the tectal neuropil
named SINs (superficial inhibitory interneurons) that I have previously identified.
Primitive neuroectodermal tumours are members of the Ewing's sarcoma family composed of small round cells normally lacking morphologic evidence of neuroblastic differentiation in the form of neuropil
or ganglion cell formation.
The reduction in hippocampal volume is attributable to decreased neurogenesis, death or atrophy of existing neurons, changes in neuropil
, the number of synapses, and synaptic bulk (Sapolsky 2000; Kempermann 2001).