Over 116 million people worldwide have chronic pain and prescription dependence. In the US, opioids account for the majority of overdose deaths, and in 2014, almost 2 million Americans abused or were dependent on prescription opioids. Genetic factors may play a key role in opioid prescription addiction. Herein, we describe genetic variations between opioid addicted and non-addicted populations ...

Little is known about cigarette smoking among opioid users who are not in substance abuse treatment. The study examined cigarette smoking in out-of-treatment opioid users presenting at a hospital who participated in drug abuse research. Participants exhibited a high rate of smoking (92%) at baseline that remained unchanged at one year and were moderately nicotine-dependent. Nineteen percent pre...

Persons experiencing pain, whether acute or chronic, seek and deserve relief from their discomfort and loss of function. However, opioid analgesics have the capacity to induce tolerance, physical dependence, and addiction. Furthermore, persons with a history of opioid use disorders or other substance misuse problems are at "high risk" when they acquire painful conditions requiring aggressive tr...

This retrospective cross-sectional study examines whether conduct disorder and attention deficit hyperactivity disorder are associated with problem severity and psychiatric comorbidity in 193 middle-aged, opioid-dependent patients. Conduct disorder history, attention deficit hyperactivity disorder, psychiatric comorbidity, and problem severity were assessed by structured interviews and validate...

This was a 6-month, randomized, flexible-dose study comparing the effects of methadone (Meth) and buprenorphine (Bup) on retention rate and substance use in a sample of 140 opioid-dependent, primarily heroin-addicted, patients who had been without opioid substitution therapy in the 4 weeks prior to the study. The major aims were to compare the efficacy of Bup and Meth in a flexible dosing regim...

BACKGROUND The aim of this report is to determine the frequency of aberrant drug behaviors and their relationship to substance abuse disorders in a large primary sample of patients receiving opioids for chronic pain. METHODS The data utilized for this report was obtained from 904 chronic pain patients receiving opioid therapy from their primary care physician. A questionnaire was developed ba...

To elucidate mechanisms of acute and chronic pain, it is important to understand how spinal excitatory systems influence opioid analgesia. The tachykinin substance P (SP) represents the prototypic spinal excitatory peptide neurotransmitter/neuromodulator, acting in concert with endogenous opioid systems to regulate analgesic responses to nociceptive stimuli. We have synthesized and pharmacologi...

objectives: from the psychological point of view, coping strategies and attitudes have considerable effects on people’s tendency towards risky behavior, including opioid substance abuse. dysfunctional attitudes are attitudes and beliefs that predispose the individual toward depression and psychological disorder, generally speaking. usually, people use three types of coping strategies when confr...