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Articles 61 - 66 of 66
Full-Text Articles in Medicine and Health Sciences
Defensins In Ocular Immunity, Minhao Wu
Defensins In Ocular Immunity, Minhao Wu
Wayne State University Dissertations
Corneal infection with P. aeruginosa results in corneal perforation in susceptible
B6, but not resistant BALB/c mice. This study explored their role mBD 1-4 in corneal
infection, and their potential synergy. Immunostaining and real-time RT-PCR data
demonstrated that their expression was either constitutive (mBD1 and mBD2) or
inducible (mBD3 and mBD4) in normal BALB/c and B6 corneas, and disparately
regulated in BALB/c vs B6 corneas after infection. Knock down studies using siRNA
treatment indicated that mBD2 and mBD3, but neither mBD1 nor mBD4, is required in
ocular defense. Moreover, in vivo studies demonstrated individual and combined effects
of mBD2 and …
Regulation Of Neuronal Excitability: New Mechanisms For Slow Afterhyperpolarization Activation And Modulation, Claudio Alberto Villalobos
Regulation Of Neuronal Excitability: New Mechanisms For Slow Afterhyperpolarization Activation And Modulation, Claudio Alberto Villalobos
Wayne State University Dissertations
One of the most characteristic features of pyramidal cells in the prefrontal cortex (PFC) is that they present a slow afterhyperpolarizing current (IsAHP) that plays a critical role in the regulation of neuronal excitability. This current is modulated by receptors acting via GΑq/11 G proteins, thus it is thought that neurotransmitters regulate neuronal excitability through the inhibition of this current. IsAHP is known to be mediated by calcium-activated potassium channels, however, neither the identity of the channel underlying this current nor its mechanism of activation are yet well understood. Recent reports have questioned a direct role …
Effect Of Dietary Folate Restriction On Colon Carcinogenesis In Dna Polymerase Β Haploinsufficient Mice, Lisa F. Ventrella Lucente
Effect Of Dietary Folate Restriction On Colon Carcinogenesis In Dna Polymerase Β Haploinsufficient Mice, Lisa F. Ventrella Lucente
Wayne State University Dissertations
The data presented in this research is central to establishing the role that the base excision repair pathway (BER) plays in the development and progression of colon cancer when dietary folate is deficient. Both cellular folate restriction and BER deficiencies have been shown to result in the accumulation of endogenous damage and lesions that could eventually develop into carcinogenesis. In this study, a dietary folate deficiency (FD) resulted in a significant increase in aberrant crypt foci (ACF) formation and triggered liver tumorogenesis in wildtype (WT) animals, as did a BER deficiency in DNA polymerase Β haploinsufficient (Β-pol+/-) mice exposed to …
The Interictal State In Epilepsy And Behavior, Daniel Tice Barkmeier
The Interictal State In Epilepsy And Behavior, Daniel Tice Barkmeier
Wayne State University Dissertations
Epilepsy is one of the most common neurological diseases, affecting up to 1% of the world population. Epilepsy remains poorly understood and there are currently no medications to cure it. Patients with epilepsy have both seizures as well as another type of abnormal activity between seizures, known as interictal spikes. Interictal spikes have thus far been poorly researched, yet growing evidence supports an important role for them in epilepsy. In this project, we first show the high variability between reviewers in marking interictal spikes on intracranial EEG, and then develop and test an automated detection method to solve this problem. …
Comparison Of Affective Analgesia And Conditioned Place Preference Following Cholinergic Activation Of, Elena Schifirnet
Comparison Of Affective Analgesia And Conditioned Place Preference Following Cholinergic Activation Of, Elena Schifirnet
Wayne State University Dissertations
Activation of the dopaminergic mesolimbic reward circuitry that originates in the ventral tegmental area (VTA) is postulated to preferentially suppress affective reactions to noxious stimuli (affective analgesia, AA). VTA dopamine neurons are activated via cholinergic inputs, and we have observed that microinjections of the acetylcholine agonist carbachol suppressed vocalizations of rats that occur following administration of brief (1 sec) tail-shocks (vocalization afterdischarges = VAD). VADs are a validated rodent model of pain affect. In addition, the capacity of carbachol to support reinforcement appears to be regionally dependent within VTA. Ikemoto and Wise (2002) reported that carbachol was self-administered in the …
Development And Validation Of A Measurement Scale To Analyze The Environment For Evidence-Based Medicine Learning And Practice By Medical Residents, Fangqiong Mi
Wayne State University Dissertations
A growing number of residency programs are instituting curricula to include the component of evidence-based medicine (EBM) principles and process. However, these curricula may not be able to achieve the optimal learning outcomes, perhaps because various contextual factors are often overlooked when EBM training is being designed, developed, and implemented. The purpose of the study was to develop and validate an instrument, the EBM Environment Scale, to analyze the environment for EBM learning and practice as perceived by medical residents.
The development of the EBM Environment Scale underwent the process of content domain identification, item generation, review by content experts …