Peter E. Marshall

Learn More
We used light and electron microscopic immunocytochemical methods to examine the structure of neuronal perikarya and processes containing cholecystokinin-like immunoreactivity (CCK-IR) in area CA1 of the rat hippocampus. The morphology of stained perikarya, their positions within all laminae, and the orientation of their dendrites indicate that CCK-IR is(More)
The retinas of adult, male Long-Evans rats contain somatostatin-like immunoreactive material (SLI) as detected by radioimmunoassay. The SLI co-chromatographs with synthetic somatostatin-14 on both gel permeation chromatography and reversed phase high performance liquid chromatography; no somatostatin-28-like material or higher molecular weight forms have(More)
The retinal ganglion cell is classically viewed as the output cell of the retina, sending a single axon via the optic nerve to synapse in visual relay nuclei of the brain. However, some ganglion cells, termed associational ganglion cells, have axons which do not leave the retina and presumably serve intraretinal communication. Using high-affinity and(More)
The development of synapses in the visual cortex (VC) and superior colliculus (SC) of the rabbit has been examined with the electron microscope. In both areas, the number of synapses reaches adult levels by 20--25 days of postnatal age, but the development in the visual cortex is delayed in comparison to that in the superior colliculus. When S synapses(More)
In previous work, radioimmunoassay was used to document the presence of somatostatin-like immunoreactive material in the rabbit retina. The present study was undertaken to determine the cellular localization of that material by light microscopic immunocytochemistry. Rabbit retinas were fixed by immersion in paraformaldehyde-lysine-periodate and reacted,(More)
The distribution of substance P and leucine-enkephalin in selected regions of brain obtained postmortem from patients with Huntington's disease and from neurologically normal persons has been studied with immunocytochemical techniques. In the normal brain, substance P immunoreactivity was identified in medium-sized neurons in the neostriatum, in neurons of(More)
The distribution of somatostatin-like immunoreactivity in the caudate, putamen, globus pallidus and ventral mesencephalon of the normal human brain has been studied with immunocytochemical techniques, and compared to that seen in Huntington's disease. Within the normal striatum, sparsely distributed varicose fibers and a population of medium-sized neurons(More)
Huntington's disease is accompanied by severe neuronal death in the striatum, but despite this cell loss, there is a marked increase in the striatal concentration of somatostatin-like immunoreactivity (SLI). We attempted to examine the mechanism of this increase by using kainic or ibotenic acid to effect a unilateral lesion in the rat neostriatum. Graded(More)
Copyright and Moral Rights for the articles on this site are retained by the individual authors and/or other copyright owners. For more information on Open Research Online's data policy on reuse of materials please consult the policies page. Abstract The Kalkarindji continental flood basalt province of northern Australia erupted in the mid Cambrian (c.(More)
AIM To determine how accurately the daily prescribed feed volume (mL/day) estimates the actual intake of breastfeeding preterm infants and to characterise the volume taken during a breastfeed at differing gestational and postmenstrual ages. METHODS A cross sectional study was conducted on preterm infants born <37 weeks gestation from two Australian(More)