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Endogenous opiates and behavior: 2008
1Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, 65-30 Kissena Blvd, Flushing, NY 11367, United States. richard.bodnar@qc.cuny.edu
Abstract:
This paper is the 31st consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2008 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior (Section 2), and the roles of these opioid peptides and receptors in pain and analgesia (Section 3); stress and social status (Section 4); tolerance and dependence (Section 5); learning and memory (Section 6); eating and drinking (Section 7); alcohol and drugs of abuse (Section 8); sexual activity and hormones, pregnancy, development and endocrinology (Section 9); mental illness and mood (Section 10); seizures and neurologic disorders (Section 11); electrical-related activity and neurophysiology (Section 12); general activity and locomotion (Section 13); gastrointestinal, renal and hepatic functions (Section 14); cardiovascular responses (Section 15); respiration and thermoregulation (Section 16); and immunological responses (Section 17).
Insights
This review covers 2008 research on the endogenous opioid system, detailing how manipulating opioid peptides and receptors affects behavior. It explores their roles in pain, stress, addiction, and various physiological functions.
Area of Science:
- Neuroscience
- Pharmacology
- Behavioral Science
Background:
- The endogenous opioid system plays a crucial role in regulating numerous physiological and behavioral processes.
- Annual reviews are essential for synthesizing the rapidly evolving research in this complex field.
Purpose of the Study:
- To provide a comprehensive summary of research published in 2008 concerning the endogenous opioid system.
- To analyze the behavioral effects of molecular, pharmacological, and genetic manipulations of opioid system components.
Main Methods:
- Literature review and synthesis of studies published in 2008.
- Categorization of research based on specific behavioral and physiological outcomes.
Main Results:
- Extensive research in 2008 investigated the behavioral consequences of altering opioid peptides, receptors, agonists, and antagonists.
- Studies examined the opioid system's involvement in pain, stress, addiction, learning, eating, and various organ system functions.
Conclusions:
- The endogenous opioid system remains a critical area of research with broad implications for understanding behavior and treating diverse conditions.
- Continued investigation into opioid system's molecular and genetic underpinnings is vital for future therapeutic advancements.
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Drug Abuse and Addiction: Pharmacological Phenomena
Opioid Analgesics: Synthetic and Semisynthetic Opioids
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Drug Dependence

