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https://www.readbyqxmd.com/read/28702203/the-effectiveness-of-naltrexone-combined-with-current-smoking-cessation-medication-to-attenuate-post-smoking-cessation-weight-gain-a-literature-review
#1
REVIEW
Raewyn Rees, Ali Seyfoddin
BACKGROUND: Smoking is the number one cause of preventable morbidity and mortality globally and although many countries have invested heavily in smoking cessation programs, 21% of the global population still smoke. Post cessation weight gain has been identified as a barrier to attempting cessation and is implicated in the high rates of relapse. Naltrexone has been touted as a possible solution to address post smoking cessation weight gain. RESULTS: The results from seven original studies assessing the effectiveness of naltrexone in combination with existing smoking cessation medications to attenuate post smoking cessation weight gain were obtained and critically reviewed...
2017: Journal of Pharmaceutical Policy and Practice
https://www.readbyqxmd.com/read/28700791/efficacy-of-tramadol-extended-release-for-opioid-withdrawal-a-randomized-clinical-trial
#2
Kelly E Dunn, D Andrew Tompkins, George E Bigelow, Eric C Strain
Importance: Opioid use disorder (OUD) is a significant public health problem. Supervised withdrawal (ie, detoxification) from opioids using clonidine or buprenorphine hydrochloride is a widely used treatment. Objective: To evaluate whether tramadol hydrochloride extended-release (ER), an approved analgesic with opioid and nonopioid mechanisms of action and low abuse potential, is effective for use in supervised withdrawal settings. Design, Setting, and Participants: A randomized clinical trial was conducted in a residential research setting with 103 participants with OUD...
July 12, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/28693915/selective-opioid-growth-factor-receptor-antagonists-based-on-a-stilbene-isostere
#3
David P Stockdale, Michelle B Titunick, Jessica M Biegler, Jessie L Reed, Alyssa M Hartung, David F Wiemer, Patricia J McLaughlin, Jeffrey D Neighbors
As part of an ongoing drug development effort aimed at selective opioid receptor ligands based on the pawhuskin natural products we have synthesized a small set of amide isosteres. These amides were centered on lead compounds which are selective antagonists for the delta and kappa opioid receptors. The amide isomers revealed here show dramatically different activity from the parent stilbene compounds. Three of the isomers synthesized showed antagonist activity for the opioid growth factor (OGF)/opioid growth factor receptor (OGFR) axis which is involved in cellular and organ growth control...
June 27, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28687195/%C3%AE-2-microglobulin-elicits-itch-related-responses-in-mice-through-the-direct-activation-of-primary-afferent-neurons-expressing-transient-receptor-potential-vanilloid-1
#4
Tsugunobu Andoh, Takahito Maki, Sikai Li, Daisuke Uta
Uremic pruritus is an unpleasant symptom in patients undergoing hemodialysis, and the underlying mechanisms remain unclear. β2-Microglobulin (β2-MG) is well-known as an MHC class I molecule and its level is increased in the plasma of patients undergoing hemodialysis. In this study, we investigated whether β2-MG was a pruritogen in mice. Intradermal injections of β2-MG into the rostral back induced scratching in a dose-dependent manner. Intradermal injection of β2-MG into the cheek also elicited scratching, but not wiping...
July 4, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28673521/addiction-consultation-services-linking-hospitalized-patients-to-outpatient-addiction-treatment
#5
Paul Trowbridge, Zoe M Weinstein, Todd Kerensky, Payel Roy, Danny Regan, Jeffrey H Samet, Alexander Y Walley
BACKGROUND: Approximately 15% of hospitalized patients have an active substance use disorder (SUD). Starting treatment for SUD, including medications, during acute hospitalizations can engage patients in addiction care. In July 2015, the Boston Medical Center Addiction Consult Service (ACS), began providing inpatient diagnostic, management, and discharge linkage consultations. We describe this implementation. METHODS: The ACS staff recorded SUDs diagnoses and medication recommendations and tracked follow-up data for affiliated outpatient office-based addiction clinics and methadone maintenance programs...
August 2017: Journal of Substance Abuse Treatment
https://www.readbyqxmd.com/read/28669481/impact-of-the-opioid-system-on%C3%A2-the%C3%A2-reproductive-axis
#6
REVIEW
Bettina Böttcher, Beata Seeber, Gerhard Leyendecker, Ludwig Wildt
Endogenous opioids, first described more than 40 years ago, have long been recognized for their main role as important neuromodulators within the central nervous system. More recently endogenous opioids and their receptor have been identified in a variety of reproductive and nonreproductive tissues outside the central nervous system. Their role within these tissues and organs, however, is only incompletely understood. In the central nervous system, endogenous opioids inhibit pulsatile GnRH release, in part mediating the stress response within the central nervous-pituitary gonadal axis, resulting in hypothalamic amenorrhea...
June 29, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28669022/pharmacological-treatment-of-bipolar-disorder-with-comorbid-alcohol-use-disorder
#7
Andrew Naglich, Bryon Adinoff, E Sherwood Brown
Bipolar disorder (BD) spectrum and alcohol use disorders (AUDs) commonly occur together. Comorbidity between the two conditions predisposes patients to elevated risks of adverse outcomes, including hospitalization and suicide, compared with either condition alone. Despite the consistent relationship observed between BD and AUD, the underlying cause remains incompletely characterized. Few trials conducted have been able to identify promising interventions for patients with these disease states. The antipsychotic quetiapine has been evaluated most commonly as a therapeutic agent for patients with BD and AUD followed by naltrexone and acamprosate...
July 1, 2017: CNS Drugs
https://www.readbyqxmd.com/read/28663674/fas-receptor-activation-by-endogenous-opioids-is-a-new-mechanism-for-cardiomyopathy-in-cirrhotic-rats
#8
Ata Abbasi, Negar Faramarzi, Mohsen Khosravi, Fatemeh Yazarloo, Mohammad Amin Abbasi, Ahmad R Dehpour, Issa Jahanzad
BACKGROUND: Cirrhosis, a common consequence of chronic liver inflammation is associated with various cardiovascular dysfunctions which are called cirrhotic cardiomyopathy (CC). Among the various possible causes of CC, apoptosis is considered to have a pivotal role. OBJECTIVES: To explore the contribution of endogenous opioids in the apoptosis process in a rat model of CC. MATERIAL AND METHODS: Four genes were selected to cover both intrinsic and extrinsic pathways of apoptosis...
June 2017: Journal of Clinical and Experimental Hepatology
https://www.readbyqxmd.com/read/28663110/sucrose-and-naltrexone-prevent-increased-pain-sensitivity-and-impaired-long-term-memory-induced-by-repetitive-neonatal-noxious-stimulation-role-of-bdnf-and-%C3%AE-endorphin
#9
Khawla Q Nuseir, Karem H Alzoubi, Ahmed Alhusban, Areej Bawaane, Mohammed Al-Azzani, Omar F Khabour
Pain in neonates is associated with short and long-term adverse outcomes. Data demonstrated that long-term consequences of untreated pain are linked to the plasticity of the neonate's brain. Sucrose is effective and safe for reducing painful procedures from single events. However, the mechanism of sucrose-induced analgesia is not fully understood. The role of the opioid system in this analgesia using the opioid receptor antagonist Naltrexone was investigated, plus the long-term effects on learning and memory formation during adulthood...
June 27, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28662966/antitrichomonal-activity-of-%C3%AE-opioid-receptor-antagonists-7-benzylidenenaltrexone-derivatives
#10
Noriki Kutsumura, Yasuaki Koyama, Yasuyuki Nagumo, Ryo Nakajima, Yoshiyuki Miyata, Naoshi Yamamoto, Tsuyoshi Saitoh, Naoko Yoshida, Satoshi Iwata, Hiroshi Nagase
The 7-benzylidenenaltrexone (BNTX) derivatives 2a-v, 3a-c, 13a-c, and 14a were synthesized from naltrexone (1) and evaluated for their antitrichomonal activity. The structure-activity-relationship studies found that 4-iodo-BNTX (2g) showed the highest activity (IC50=10.5µM) and the affinity for the opioid receptor was less important for antitrichomonal activity against Trichomonas vaginalis. The morphinan skeleton bearing both the double bond for a Michael acceptor and the phenolic hydroxy group would be a specific template for development of antitrichomonal agents...
June 15, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28659987/the-potential-role-of-naltrexone-in-borderline-personality-disorder
#11
Azadeh Moghaddas, Mehrnoush Dianatkhah, Saba Ghaffari, Padideh Ghaeli
Objective: Management of borderline personality disorder (BPD) is a difficult challenge due to the complex features of this disorder. This article reviews the use of naltrexone in the treatment of BPD. Method: Published articles and clinical trials were searched in Google Scholar, MedLine, ELSEVIER, and Cochrane database of systematic reviews abstracts in English language between 1990 and 2017. Results: Naltrexone (NTX), a nonspecific competitive opiate antagonist, has been noted to be helpful in controlling self-injurious behavior (SIB) and dissociative symptoms in patients with BPD...
April 2017: Iranian Journal of Psychiatry
https://www.readbyqxmd.com/read/28658981/pharmacotherapy-of-alcoholism-an-update-on-approved-or-available-medications
#12
Michael Soyka, Christian A Müller
Only a few medications are available for the treatment of alcohol use disorders (AUDs). Areas covered: This paper discusses approved AUD medications, including the opioid antagonists; naltrexone and nalmefene (the latter is licensed for reduction of alcohol consumption only), the putative glutamate receptor antagonist acamprosate and the aldehyde dehydrogenase inhibitor disulfiram. It also covers off-label medications of interest, including topiramate, gabapentin, ondansetron, varenicline, baclofen, sodium oxybate and antidepressants...
June 29, 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28642332/morphine-worsens-the-severity-and-prevents-pancreatic-regeneration-in-mouse-models-of-acute-pancreatitis
#13
Usman Barlass, Raini Dutta, Hassam Cheema, John George, Archana Sareen, Ajay Dixit, Zuobiao Yuan, Bhuwan Giri, Jingjing Meng, Santanu Banerjee, Sulagna Banerjee, Vikas Dudeja, Rajinder K Dawra, Sabita Roy, Ashok K Saluja
BACKGROUND: Opioids such as morphine are widely used for the management of pain associated with acute pancreatitis. Interestingly, opioids are also known to affect the immune system and modulate inflammatory pathways in non-pancreatic diseases. However, the impact of morphine on the progression of acute pancreatitis has never been evaluated. In the current study, we evaluated the impact of morphine on the progression and severity of acute pancreatitis. METHODS: Effect of morphine treatment on acute pancreatitis in caerulein, L-arginine and ethanol-palmitoleic acid models was evaluated after induction of the disease...
June 22, 2017: Gut
https://www.readbyqxmd.com/read/28642209/acceptability-and-feasibility-of-a-randomized-clinical-trial-of-oral-naltrexone-vs-placebo-for-women-living-with-hiv-infection-study-design-challenges-and-pilot-study-results
#14
Robert L Cook, Kathleen M Weber, Dao Mai, Kathleen Thoma, Xingdi Hu, Babette Brumback, Manju Karki, Kendall Bryant, Mobeen Rathore, Mary Young, Mardge Cohen
BACKGROUND: Women living with HIV/AIDS who drink alcohol are at increased risk for adverse health outcomes, but there is little evidence on best methods for reducing alcohol consumption in this population. We conducted a pilot study to determine the acceptability and feasibility of conducting a larger randomized clinical trial of naltrexone vs. placebo to reduce alcohol consumption in women living with HIV/AIDS. METHODS: We designed the trial with input from community and scientific review...
June 19, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28640990/opiate-antagonists-do-not-interfere-with-the-clinical-benefits-of-stimulants-in-adhd-a-double-blind-placebo-controlled-trial-of-the-mixed-opioid-receptor-antagonist-naltrexone
#15
Thomas J Spencer, Pradeep Bhide, Jinmin Zhu, Stephen V Faraone, Maura Fitzgerald, Amy M Yule, Mai Uchida, Andrea E Spencer, Anna M Hall, Ariana J Koster, Joseph Biederman
OBJECTIVE: Methylphenidate activates μ-opioid receptors, which are linked to euphoria. μ-Opioid antagonists, such as naltrexone, may attenuate the euphoric effects of stimulants, thereby minimizing their abuse potential. This study assessed whether the combination of naltrexone with methylphenidate is well-tolerated while preserving the clinical benefits of stimulants in subjects with attention-deficit/hyperactivity disorder (ADHD). METHODS: We conducted a 6-week, double-blind, placebo-controlled, randomized clinical trial of naltrexone in adults with DSM-IV ADHD receiving open treatment with a long-acting formulation of methylphenidate from January 2013 to July 2015...
June 20, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28638432/mechanical-stimulation-of-the-ht7-acupuncture-point-to-reduce-ethanol-self-administration-in-rats
#16
Suk-Yun Kang, O Sang Kwon, Ji-Young Moon, Seong Jin Cho, Kwang-Ho Choi, Junbeom Kim, Seong-Hun Ahn, Yeonhee Ryu
BACKGROUND: Alcoholism, which is a disabling addiction disorder, is a major public health problem worldwide. The present study was designed to determine whether the application of acupuncture at the Shenmen (HT7) point suppresses voluntary alcohol consumption in addicted rats and whether this suppressive effect is potentiated by the administration of naltrexone. METHODS: Rats were initially trained to self-administer a sucrose solution by operating a lever. A mechanical acupuncture instrument (MAI) for objective mechanical stimulation was used on rats whose baseline response had been determined...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28635181/buprenorphine-requires-concomitant-activation-of-nop-and-mop-receptors-to-reduce-cocaine-consumption
#17
Marsida Kallupi, Qianwei Shen, Giordano de Guglielmo, Dennis Yasuda, V Blair Journigan, Nurulain T Zaveri, Roberto Ciccocioppo
Buprenorphine's clinical use is approved for the treatment of heroin addiction; however, evidence supporting its efficacy in cocaine abuse also exists. While for heroin it has been demonstrated that the effect of buprenorphine is mediated by its ability to activate μ-opioid peptide receptor (MOP) receptors, the mechanism through which it attenuates cocaine intake remains elusive. We explored this mechanism using operant models where rodents were trained to chronically self-administer cocaine for 2 hours daily...
June 21, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28628701/trends-in-receipt-of-buprenorphine-and-naltrexone-for-opioid-use-disorder-among-adolescents-and-young-adults-2001-2014
#18
Scott E Hadland, J Frank Wharam, Mark A Schuster, Fang Zhang, Jeffrey H Samet, Marc R Larochelle
Importance: Opioid use disorder (OUD) frequently begins in adolescence and young adulthood. Intervening early with pharmacotherapy is recommended by major professional organizations. No prior national studies have examined the extent to which adolescents and young adults (collectively termed youth) with OUD receive pharmacotherapy. Objective: To identify time trends and disparities in receipt of buprenorphine and naltrexone among youth with OUD in the United States...
June 19, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28626482/the-possible-mechanisms-of-analgesia-produced-by-microinjection-of-morphine-into-the-lateral-habenula-in-the-acute-model-of-trigeminal-pain-in-rats
#19
Emad Khalilzadeh, Gholamreza Vafaei Saiah
This study aimed to assess the effect of intra-habenular injection of morphine on acute trigeminal pain in rats. Also here, we examined the involvement of raphe nucleus opioid and 5HT3 receptors on the antinociceptive activity of intra habenular morphine to explore the possibility of existence of descending antinociceptive relay between the habenula and raphe nucleus. The numbers of eye wiping response elicited by applying a drop (40 μL) of NaCl (5 M) solution on the corneal surface were taken as an index of acute trigeminal nociception...
June 2017: Research in Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28609749/fatal-and-non-fatal-opioid-overdose-in-opioid-dependent-patients-treated-with-methadone-buprenorphine-or-implant-naltrexone
#20
Erin Kelty, Gary Hulse
BACKGROUND: Illicit opioid use is associated with high rates of fatal and non-fatal opioid overdose. This study aims to compare rates of fatal and serious but non-fatal opioid overdose in opioid dependent patients treated with methadone, buprenorphine or implant naltrexone, and to identify risk factors for fatal opioid overdose. METHODS: Opioid dependent patients treated with methadone (n=3515), buprenorphine (n=3250) or implant naltrexone (n=1461) in Western Australia for the first time between 2001 and 2010, were matched against state mortality and hospital data...
June 10, 2017: International Journal on Drug Policy
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