User profiles for Michael D. Scofield

Michael Scofield

Medical University of South Carolina
Verified email at musc.edu
Cited by 3014

Astrocytic dysfunction and addiction: consequences of impaired glutamate homeostasis

MD Scofield, PW Kalivas - The Neuroscientist, 2014 - journals.sagepub.com
Addiction is characterized as a chronic relapsing disorder whereby addicted individuals
persistently engage in drug seeking and use despite profound negative consequences. The …

Gq-DREADD selectively initiates glial glutamate release and inhibits cue-induced cocaine seeking

MD Scofield, HA Boger, RJ Smith, H Li, PG Haydon… - Biological …, 2015 - Elsevier
Background Glial cells of the central nervous system directly influence neuronal activity by
releasing neuroactive small molecules, including glutamate. Long-lasting cocaine-induced …

Glutamate transporter GLT‐1 mediates N‐acetylcysteine inhibition of cocaine reinstatement

…, PK Tran, LA Knackstedt, MD Scofield… - Addiction …, 2015 - Wiley Online Library
Both pre‐clinical and clinical studies indicate that N ‐acetylcysteine ( NAC ) may be useful
in treating relapse to addictive drug use. Cocaine self‐administration in rats reduces both …

Synaptic glutamate spillover due to impaired glutamate uptake mediates heroin relapse

H Shen, MD Scofield, H Boger, M Hensley… - Journal of …, 2014 - Soc Neuroscience
Reducing the enduring vulnerability to relapse is a therapeutic goal in treating drug addiction.
Studies with animal models of drug addiction show a marked increase in extrasynaptic …

Cocaine self-administration and extinction leads to reduced glial fibrillary acidic protein expression and morphometric features of astrocytes in the nucleus accumbens …

MD Scofield, H Li, BM Siemsen, KL Healey, PK Tran… - Biological …, 2016 - Elsevier
Background As a more detailed picture of nervous system function emerges, diversity of
astrocyte function becomes more widely appreciated. While it has been shown that cocaine …

Synaptic plasticity mediating cocaine relapse requires matrix metalloproteinases

ACW Smith, YM Kupchik, MD Scofield, CD Gipson… - Nature …, 2014 - nature.com
Relapse to cocaine use necessitates remodeling excitatory synapses in the nucleus accumbens
and synaptic reorganization requires matrix metalloproteinase (MMP) degradation of …

Astrocyte regulation of synaptic signaling in psychiatric disorders

A Kruyer, PW Kalivas, MD Scofield - Neuropsychopharmacology, 2023 - nature.com
Over the last 15 years, the field of neuroscience has evolved toward recognizing the critical
role of astroglia in shaping neuronal synaptic activity and along with the pre- and …

The nicotinic acetylcholine receptor CHRNA5/A3/B4 gene cluster: dual role in nicotine addiction and lung cancer

MRD Improgo, MD Scofield, AR Tapper… - Progress in …, 2010 - Elsevier
More than 1 billion people around the world smoke, with 10 million cigarettes sold every
minute. Cigarettes contain thousands of harmful chemicals including the psychoactive …

Accumbens nNOS interneurons regulate cocaine relapse

ACW Smith, MD Scofield, JA Heinsbroek… - Journal of …, 2017 - Soc Neuroscience
Relapse to drug use can be initiated by drug-associated cues. The intensity of cue-induced
relapse is correlated with the induction of transient synaptic potentiation (t-SP) at …

Chemogenetic manipulations of ventral tegmental area dopamine neurons reveal multifaceted roles in cocaine abuse

…, ZA Cope, EC Lin, MD Riedy, MD Scofield… - Journal of …, 2019 - Soc Neuroscience
Ventral tegmental area (VTA) dopamine (DA) neurons perform diverse functions in motivation
and cognition, but their precise roles in addiction-related behaviors are still debated. Here, …