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Neuroscience

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Articles 31 - 36 of 36

Full-Text Articles in Molecular and Cellular Neuroscience

Characterization Of Vesicular Monoamine Transporter 2 And Its Role In Parkinson's Disease Pathogenesis Using Drosophila, Antonio Joel Tito Jr., Sheng Zhang Dec 2016

Characterization Of Vesicular Monoamine Transporter 2 And Its Role In Parkinson's Disease Pathogenesis Using Drosophila, Antonio Joel Tito Jr., Sheng Zhang

Dissertations & Theses (Open Access)

Parkinson’s disease (PD) is a progressive neurodegenerative disorder caused by the selective loss of the dopaminergic neurons in the Substantia nigra pars compacta region of the brain. PD is also the most common neurodegenerative disorder and the second most common movement disorder. PD patients exhibit the cardinal symptoms, including tremor of the extremities, rigidity, slowness of movement, and postural instability, after 70-80% of DA neurons degenerate. It is, therefore, imperative to elucidate the underlying mechanisms involved in the selective degeneration of DA neurons. Although increasing numbers of PD genes have been identified, why these largely widely expressed genes induce …

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Cellular And Genetic Bases Of Cold Nociception And Nociceptive Sensitization In Drosophila Larvae, Heather N. Turner Dec 2016

Cellular And Genetic Bases Of Cold Nociception And Nociceptive Sensitization In Drosophila Larvae, Heather N. Turner

Dissertations & Theses (Open Access)

Organisms from flies to mammals utilize thermoreceptors to detect and respond to noxious thermal stimuli. Although much is understood about noxious heat avoidance, our understanding of the basic biology of noxious cold perception is gravely minimal. Numerous clinical conditions disrupt the sensory machinery, such as in patients suffering from tissue damage (from wound or sunburn), or injury to the peripheral nerves, as in patients with diabetes or undergoing chemotherapy. Our goal is to determine the genetic basis for noxious cold perception and injury-induced nociceptive sensitization using the genetically tractable Drosophila model. Using a novel "cold probe" tool and assay we …

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Modulation Of Synaptic Transmission By Adenosine In Layer 2/3 Of The Rat Visual Cortex In Vitro, Nicholas M. Bannon Apr 2013

Modulation Of Synaptic Transmission By Adenosine In Layer 2/3 Of The Rat Visual Cortex In Vitro, Nicholas M. Bannon

Master's Theses

No abstract provided.

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A Novel Taulacz Allele Reveals A Requirement For Pitx2 In Formation Of The Mammillothalamic Tract, Mindy Waite Dec 2011

A Novel Taulacz Allele Reveals A Requirement For Pitx2 In Formation Of The Mammillothalamic Tract, Mindy Waite

Mindy Waite

The hypothalamic mammillary region is critical for spatial memory and vestibular processing. Pitx2 encodes a paired-like transcription factor that is highly expressed in the developing mammillary region and is required for subthalamic nucleus formation. Here we analyzed a loss of function Pitx2-TaulacZ knock-in allele to study the effects of Pitx2 deficiency on neuronal projections in the embryonic mammillary region. Pitx2-expressing neurons contribute axons to principal mammillary, mammillotegmental and mammillotectal tracts. Embryos with Pitx2 deficiency exhibit axonal fibers in the principal mammillary tract that are improperly bundled and disorganized, yet project caudally toward the tectum and tegmentum. Embryos …

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Distinct Populations Of Gabaergic Neurons In Mouse Rhombomere 1 Express But Do Not Require The Homeodomain Transcription Factor Pitx2, Mindy Waite Dec 2011

Distinct Populations Of Gabaergic Neurons In Mouse Rhombomere 1 Express But Do Not Require The Homeodomain Transcription Factor Pitx2, Mindy Waite

Mindy Waite

Hindbrain rhombomere 1 (r1) is located caudal to the isthmus, a critical organizer region, and rostral to rhombomere 2 in the developing mouse brain. Dorsal r1 gives rise to the cerebellum, locus coeruleus, and several brainstem nuclei, whereas cells from ventral r1 contribute to the trochlear and trigeminal nuclei as well as serotonergic and GABAergic neurons of the dorsal raphe. Recent studies have identified several molecular events controlling dorsal r1 development. In contrast, very little is known about ventral r1 gene expression and the genetic mechanisms regulating its formation. Neurons with distinct neurotransmitter phenotypes have been identified in ventral r1 …

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Relative Dependence Of Neural Plasticity On Age And Activity In The Bumblebee (Bombus Huntii), Geoffrey Nielsen Jan 2011

Relative Dependence Of Neural Plasticity On Age And Activity In The Bumblebee (Bombus Huntii), Geoffrey Nielsen

Summer Research

Neural Plasticity is one of the most fascinating and complex aspects of neuroscience. Due to the complexity of neural plasticity mechanisms, simple models are used to study neural plasticity. The bumblebee, Bombus huntii provides an ideal model organism with which to study neural plasticity, particularly the way it is affected by age and activity1. The Mushroom Body is the portion of the B. huntii brain that is responsible for higher order sensory integration and experience related learning so it will be the focus of this study.

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