Neurobiological Biomarkers For Developing Novel Treatments Of Substance And Non Substance Addiction

This Research Topic is the second volume of the 'Community Series in Neurobiological Biomarkers for Developing Novel Treatments of Substance and Non-Substance Addiction'. Please see the first volume here. Many people suffer from substance (from nicotine or alcohol to heroin, methamphetamine, cocaine, etc) or non-substance (from gaming/gambling to shopping, internet, smartphone, etc) addiction. Both types of addiction are associated with severe health, economic and social consequences and are far too often result in both familial and personal tragedies. Unfortunately, current treatments are not very effective for either substance or non-substance addiction so novel treatments are desperately needed. For example, for nicotine addiction, despite very well-documented health risks of cigarette smoking and its economic and societal costs, globally, more than 30% of males still smoke, and although many smokers desire to quit, only approximately 5-30% will achieve abstinence with 6 months or more of the best available current treatments. And the story for nicotine addiction is far from unique, presenting a huge challenge for the entire addiction field. Therefore, there is a vital need to improve outcomes for the treatment of both substance and non-substance addictions. Recent work exploring neurobiological mechanisms of the treatment response at the molecular, cellular and systems levels with a broad range of technologies, such as Magnetic Resonance Imaging (MRI), genetics and genomics, have opened new avenues for developing novel treatments through the detection of neurobiological biomarkers predicting efficacious outcomes in addicted patients.

Neuroimaging in Addiction presents an up-to-date, comprehensive review of the functional and structural imaging human studies that have greatly advanced our understanding of this complex disorder. Approaching addiction from a conceptual rather than a substance-specific perspective, this book integrates broad neuropsychological constructs that consider addiction as a neuroplastic process with genetic, developmental, and substance-induced contributions. The internationally recognized contributors to this volume are leaders in clinical imaging with expertise that spans the addiction spectrum. Following a general introduction, an overview of neural circuitry and modern non-invasive imaging techniques provides the framework for subsequent chapters on reward salience, craving, stress, impulsivity and cognition. Additional topics include the use of neuroimaging for the assessment of acute drug effects, drug-induced neurotoxicity, non-substance addictive behaviors, and the application of imaging genetics to identify unique intermediate phenotypes. The book concludes with an exploration of the future promise for functional imaging as guide to the diagnosis and treatment of addictive disorders. Scientists and clinicians will find the material in this volume invaluable in their work towards understanding the addicted brain, with the overall goal of improved prevention and treatment outcomes for patients. Features a Foreword by Edythe London, Director of the Center for Addictive Behaviors, University of California at Los Angeles.

This book focuses on the similarities and differences between substance and non-substance addictions. It discusses in detail the mechanisms, diagnosis and treatment of substance and non-substance addictions, and addresses selected prospects that will shape future studies on addiction. Addiction is a global problem that costs millions of lives tremendous damage year after year. There are mainly two types of addition: substance addiction (e.g., nicotine, alcohol, cannabis, heroin, stimulants, etc.) and non-substance addiction (e.g., gambling, computer gaming, Internet, etc.). Based on existing evidence, both types of addiction produce negative impacts on individuals’ physical, mental, social and financial well-being, and share certain common mechanisms, which involve a dysfunction of the neural reward system and specific gene transcription factors. However, there are also key differences between these two types of addiction. Covering these aspects systematically, the book will provide researchers and graduate students alike a better understanding of drug and behavioral addictions.

Biomarkers, or biological markers, are quantitative measurements that offer researchers and clinicians valuable insight into diagnosis, treatment and prognosis for many disorders and diseases. A major goal in neuroscience medical research is establishing biomarkers for disorders of the nervous system. Given the promising potential and necessity for neuroscience biomarkers, the Institute of Medicine Forum on Neuroscience and Nervous System Disorders convened a public workshop and released the workshop summary entitled Neuroscience Biomarkers and Biosignatures: Converging Technologies, Emerging Partnerships. The workshop brought together experts from multiple areas to discuss the most promising and practical arenas in neuroscience in which biomarkers will have the greatest impact. The main objective of the workshop was to identify and discuss biomarker targets that are not currently being aggressively pursued but that could have the greatest near-term impact on the rate at which new treatments are brought forward for psychiatric and neurological disorders.

Brain imaging technology remains at the forefront of advances in both our understanding of the brain and our ability to diagnose and treat brain disease and disorders. Imaging of the Human Brain in Health and Disease examines the localization of neurotransmitter receptors in the nervous system of normal, healthy humans and compares that with humans who are suffering from various neurologic diseases. Opening chapters introduce the basic science of imaging neurotransmitters, including sigma, acetylcholine, opioid, and dopamine receptors. Imaging the healthy and diseased brain includes brain imaging of anger, pain, autism, the release of dopamine, the impact of cannabinoids, and Alzheimer's disease. This book is a valuable companion to a wide range of scholars, students, and researchers in neuroscience, clinical neurology, and psychiatry, and provides a detailed introduction to the application of advanced imaging to the treatment of brain disorders and disease. A focused introduction to imaging healthy and diseased brains Focuses on the primary neurotransmitter release Includes sigma, acetylcholine, opioid, and dopamine receptors Presents the imaging of healthy and diseased brains via anger, pain, autism, and Alzheimer's disease

Improving and Accelerating Therapeutic Development for Nervous System Disorders is the summary of a workshop convened by the IOM Forum on Neuroscience and Nervous System Disorders to examine opportunities to accelerate early phases of drug development for nervous system drug discovery. Workshop participants discussed challenges in neuroscience research for enabling faster entry of potential treatments into first-in-human trials, explored how new and emerging tools and technologies may improve the efficiency of research, and considered mechanisms to facilitate a more effective and efficient development pipeline. There are several challenges to the current drug development pipeline for nervous system disorders. The fundamental etiology and pathophysiology of many nervous system disorders are unknown and the brain is inaccessible to study, making it difficult to develop accurate models. Patient heterogeneity is high, disease pathology can occur years to decades before becoming clinically apparent, and diagnostic and treatment biomarkers are lacking. In addition, the lack of validated targets, limitations related to the predictive validity of animal models - the extent to which the model predicts clinical efficacy - and regulatory barriers can also impede translation and drug development for nervous system disorders. Improving and Accelerating Therapeutic Development for Nervous System Disorders identifies avenues for moving directly from cellular models to human trials, minimizing the need for animal models to test efficacy, and discusses the potential benefits and risks of such an approach. This report is a timely discussion of opportunities to improve early drug development with a focus toward preclinical trials.

The guideline focuses specifically on evidence-based pharmacological treatments for AUD in outpatient settings and includes additional information on assessment and treatment planning, which are an integral part of using pharmacotherapy to treat AUD.