Nociceptin/orphanin FQ receptor modulates painful and fatigue symptoms in a mouse model of fibromyalgia

This study investigated the effects of nociceptin/orphanin FQ (N/OFQ) receptor (NOPr) ligands and the modulation of the NOP system in the preclinical mouse model of reserpine-induced fibromyalgia. The effects of administration of the natural agonist N/OFQ and the selective NOPr antagonists (UFP-101 and SB-612111) were evaluated in fibromyalgia-related symptoms in reserpine-treated mice. The expression of prepronociceptin/orphanin FQ and NOPr was assessed in central and peripheral sites at different time points after reserpine administration. Nociceptin/orphanin FQ displayed dual effects in the behavioral changes in the reserpine-elicited fibromyalgia model. The peptide NOPr antagonist UFP-101 produced analgesic and antifatigue effects, by preventing alterations in brain activity and skeletal muscle metabolism, secondary to fibromyalgia induction. The nonpeptide NOPr antagonist SB-612111 mirrored the favorable effects of UFP-101 in painful and fatigue alterations induced by reserpine. A time-related up- or downregulation of prepronociceptin/orphanin FQ and NOPr was observed in supraspinal, spinal, and peripheral sites of reserpine-treated mice. Our data shed new lights on the mechanisms underlying the fibromyalgia pathogenesis, supporting a role for N/OFQ-NOP receptor system in this syndrome.
Source: Pain - Category: Anesthesiology Tags: Research Paper Source Type: research

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Abstract Acupuncture has been increasingly used as an integrative or complementary therapy for pain. It is well-tolerated with little risk of serious adverse effects. Traditional acupuncture and nontraditional techniques, such as electroacupuncture and dry needling, often result in reported pain improvement. Multiple factors may contribute to variability in acupuncture's therapeutic effects, including needling technique, number of needles used, duration of needle retention, acupuncture point specificity, number of treatments, and numerous subjective (psychological) factors. Controlled trials have been published on...
Source: American Family Physician - Category: Primary Care Authors: Tags: Am Fam Physician Source Type: research
You're reading A Physician Letter Essay Sample, originally posted on Pick the Brain | Motivation and Self Improvement. If you're enjoying this, please visit our site for more inspirational articles. From: Dr. Abu Salim Idris (Consultant Neurologist at KPJ Tawakkal Hospital/ MMC NO 23250 / nsr 124687/) To: Whom it may concern I Am writing regarding the health of my patient, name: MOHAMED YAHYA RASHEED AL JUMA, Passport NO: VP3153200 (OMAN), D.O.B: 01/07/1991 The above-mentioned patient was born on the 1st day of July 1991 in Oman and a student at the KDU University in Malaysia. The student is set to go back for hi...
Source: PickTheBrain | Motivation and Self Improvement - Category: Consumer Health News Authors: Tags: Uncategorized Source Type: blogs
The objective of our study was to compare pain and health-related quality of life among patients with knee osteoarthritis (OA), chronic nonspecific low back pain (CNLBP) and fibromyalgia (FM). This cross-sectional study included 87 subjects, who were divided into three groups according to their diagnosis: knee OA (n=29), CNLBP (n=29) and FM (n=29), between March 2013 and March 2014. Pain intensity was measured using the Numeric Pain Rating Scale (NPRS), quality of pain using the McGill Pain Questionnaire (MPQ) and health-related quality of life using the 36-item Short-Form Health Survey (SF-36). Painful body areas were mar...
Source: Reumatismo - Category: Rheumatology Authors: Tags: Reumatismo Source Type: research
ra SM Abstract Fibromyalgia is a disease characterised as generalised chronic primary pain that causes functional disability and a reduction in patients' quality of life, without specific pathophysiology or appropriate treatment. Previous studies have shown that kinins and their B1 and B2 receptors contribute to chronic painful conditions. Thus, we investigated the involvement of kinins and their B1 and B2 receptors in a fibromyalgia-like pain model induced by reserpine in mice. Nociceptive parameters (mechanical allodynia, cold sensitivity and overt nociception) and behaviours of burrowing, thigmotaxis, and force...
Source: Biochemical Pharmacology - Category: Drugs & Pharmacology Authors: Tags: Biochem Pharmacol Source Type: research
As physicians, many of our daily practices involve administration of substances that are shrouded in mystery. Certain medications, specifically opioids, have been part of tragic news stories, and have turned young children into orphans, happy spouses into widows and widowers, and once-aspirational youth into memories. The CDC reports that on average, 130 people die each day from an opioid overdose. With such harrowing statistics, why take opioids in the first place? Well, if used appropriately, opioids can significantly improve pain with relatively tolerable side effects. A short-term course of opioids (typically 3 to 7 da...
Source: Harvard Health Blog - Category: Consumer Health News Authors: Tags: Addiction Pain Management Source Type: blogs
Publication date: Available online 12 June 2019Source: Best Practice &Research Clinical RheumatologyAuthor(s): Martin DiersAbstractIn this chapter, we provide an overview of neuroimaging studies in chronic pain. We start with an introduction about the phenomenology of pain. In the following section, the application of functional and structural imaging techniques is shown in selected chronic pain syndromes (chronic back pain, fibromyalgia syndrome (FMS), phantom limb pain, and complex regional pain syndrome (CRPS)), and commonalities and peculiarities of imaging correlates across different types of chronic pain are disc...
Source: Best Practice and Research Clinical Rheumatology - Category: Rheumatology Source Type: research
Lower back and leg pain can result from poor posture and overstraining the back muscles. However, persistent or recurring pain can be a sign of an underlying condition, such as arthritis or fibromyalgia. Learn more about the possible causes of lower back and leg pain here.
Source: Health News from Medical News Today - Category: Consumer Health News Tags: Back Pain Source Type: news
A persistent or recurring tingling, or pins and needles, sensation in the back can be a sign of an underlying medical condition. Causes can include infections, injuries, spinal problems, fibromyalgia, and vascular malformations. Learn more here.
Source: Health News from Medical News Today - Category: Consumer Health News Tags: Back Pain Source Type: news
Blockade of spinal α5-GABAA receptors differentially reduces reserpine-induced fibromyalgia-type pain in female rats. Eur J Pharmacol. 2019 Jun 07;:172443 Authors: De la Luz-Cuellar YE, Rodríguez-Palma EJ, Franco-Enzástiga Ú, Salinas-Abarca AB, Delgado-Lezama R, Granados-Soto V Abstract The role of spinal α5 subunit-containing GABAA (α5-GABAA) receptors in chronic pain is controversial. The purpose of this study was to investigate the participation of spinal α5-GABAA receptors in the reserpine-induced pain model. Reserpine administration induced tactile all...
Source: European Journal of Pharmacology - Category: Drugs & Pharmacology Authors: Tags: Eur J Pharmacol Source Type: research
I was looking back over the last 8 years since the first Wheat Belly book was released. It’s been 8 years of astounding, truly breathtaking stories of success over weight issues, health, and physical transformations that skeptics even today claim are impossible. It’s been a virtual avalanche of wonderful stories. Although I’ve seen all of them, often more than once, I could not help but be overcome with satisfaction and pride for the many, many spectacular photos and stories people have shared. So I thought it would be fun to re-post a small sample of some of these stories dating back from the start of th...
Source: Wheat Belly Blog - Category: Cardiology Authors: Tags: Wheat Belly Success Stories grain-free Inflammation Source Type: blogs
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