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1.
Dual Enkephalinase Inhibitors and Their Role in Chronic Pain Management.
Southerland, WA, Gillis, J, Kuppalli, S, Fonseca, A, Mendelson, A, Horine, SV, Bansal, N, Gulati, A
Current pain and headache reports. 2021;(5):29
Abstract
PURPOSE OF REVIEW Dual enkephalinase inhibitors (DENKIs) are pain medications that indirectly activate opioid receptors and can be used as an alternative to traditional opioids. Understanding the physiology of enkephalins and their inhibitors and the pharmacology of these drugs will allow for proper clinical application for chronic pain patients in the future. RECENT FINDINGS DENKIs can be used as an alternative mode of analgesia for patients suffering from chronic pain by preventing the degradation of endogenous opioid ligands. By inhibiting the two major enkephalin-degrading enzymes (neprilysin and aminopeptidase N), DENKIs can provide analgesia with less adverse effects than nonendogenous opioids. The purpose of this paper is to review the current literature investigating DENKIs and explore their contribution to chronic pain management.
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2.
Anesthesia Related to Breast Cancer Recurrence and Chronic Pain: A Review of Current Research.
Kujawa, E, Blau, A, Rametta, L
AANA journal. 2021;(4):291-298
Abstract
Patients with breast cancer often require several procedures requiring anesthesia, such as central venous catheter placements, mastectomies, lymph node dissections, and reconstructive surgeries. Recent research findings have suggested there may be a reduced risk of cancer recurrence and chronic pain with specific anesthetic techniques. Regional techniques, total intravenous anesthetics, and select adjuncts have been reviewed to identify their role in breast cancer recurrence and chronic pain. A review of the pathophysiology as it pertains to volatile anesthetics, propofol as a total intravenous anesthetic, paravertebral nerve blocks, dexmedetomidine, and ketorolac, as well as the role each of these plays in the prevention of chronic pain and cancer recurrence is provided. Current research and recommendations for practice are presented in the context of providing anesthesia to mitigate chronic pain and cancer recurrence in patients with breast cancer.
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3.
Antispasmodics for Chronic Abdominal Pain: Analysis of North American Treatment Options.
Brenner, DM, Lacy, BE
The American journal of gastroenterology. 2021;(8):1587-1600
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Abstract
Chronic abdominal pain is a common gastrointestinal (GI) symptom that characterizes many functional GI disorders/disorders of gut-brain interaction, including irritable bowel syndrome, functional dyspepsia, and centrally mediated abdominal pain syndrome. The symptoms of abdominal pain in these highly prevalent disorders are often treated with antispasmodic agents. Antispasmodic treatment includes a broad range of therapeutic classes with different mechanisms of action, including anticholinergic/antimuscarinic agents (inhibition of GI smooth muscle contraction), calcium channel inhibitors (inhibition of calcium transport into GI smooth muscle), and direct smooth muscle relaxants (inhibition of sodium and calcium transport). The aim of this review article was to examine the efficacy and safety of antispasmodics available in North America (e.g., alverine, dicyclomine, hyoscine, hyoscyamine, mebeverine, otilonium, pinaverium, and trimebutine) for the treatment of chronic abdominal pain in patients with common disorders of gut-brain interaction. For the agents examined, comparisons of studies are limited by inconsistencies in treatment dosing and duration, patient profiles, and diagnostic criteria employed. Furthermore, variability in study end points limits comparisons. Risk of selection, performance, detection, attrition, and reporting bias also differed among studies, and in many cases, risks were considered "unclear." The antispasmodics evaluated in this review, which differ in geographic availability, were found to vary dramatically in efficacy and safety. Given these caveats, each agent should be considered on an individual basis, rather than prescribed based on information across the broad class of agents.
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Cannabinoid Formulations and Delivery Systems: Current and Future Options to Treat Pain.
Stella, B, Baratta, F, Della Pepa, C, Arpicco, S, Gastaldi, D, Dosio, F
Drugs. 2021;(13):1513-1557
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Abstract
The field of Cannabis sativa L. research for medical purposes has been rapidly advancing in recent decades and a growing body of evidence suggests that phytocannabinoids are beneficial for a range of conditions. At the same time impressing development has been observed for formulations and delivery systems expanding the potential use of cannabinoids as an effective medical therapy. The objective of this review is to present the most recent results from pharmaceutical companies and research groups investigating methods to improve cannabinoid bioavailability and to clearly establish its therapeutic efficacy, dose ranges, safety and also improve the patient compliance. Particular focus is the application of cannabinoids in pain treatment, describing the principal cannabinoids employed, the most promising delivery systems for each administration routes and updating the clinical evaluations. To offer the reader a wider view, this review discusses the formulation starting from galenic preparation up to nanotechnology approaches, showing advantages, limits, requirements needed. Furthermore, the most recent clinical data and meta-analysis for cannabinoids used in different pain management are summarized, evaluating their real effectiveness, in order also to spare opioids and improve patients' quality of life. Promising evidence for pain treatments and for other important pathologies are also reviewed as likely future directions for cannabinoids formulations.
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B vitamins as a treatment for diabetic pain and neuropathy.
Karaganis, S, Song, XJ
Journal of clinical pharmacy and therapeutics. 2021;(5):1199-1212
Abstract
WHAT IS KNOWN AND OBJECTIVE B vitamin therapy is a common treatment for diabetic pain and neuropathy, yet its use remains controversial in patients lacking B vitamin deficiencies. The aim of this review was to summarize the current evidence for the efficacy of B vitamin therapy in diabetic patients with neuropathy. COMMENT We screened the English literature for clinical studies evaluating B vitamins as a therapy for pain and neuropathy in diabetic patients. We selected 43 relevant studies for qualitative analysis based on our selection criteria. Our survey of the literature revealed substantive heterogeneity with respect to efficacies of reported outcomes, as well as study design. Most beneficial outcomes were reported against baseline measures, with few positive comparisons against placebo. This highlights the need for larger, placebo-controlled studies. WHAT IS NEW AND CONCLUSION B vitamins should be considered a plausible therapy for diabetic neuropathy, but its overall efficacy remains uncertain and requires further study.
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Nutritional factors in chronic musculoskeletal pain: unravelling the underlying mechanisms.
Elma, Ö, Yilmaz, ST, Deliens, T, Coppieters, I, Clarys, P, Nijs, J, Malfliet, A
British journal of anaesthesia. 2020;(2):e231-e233
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Chronic pelvic pain syndrome: Highlighting medicinal plants toward biomolecules discovery for upcoming drugs formulation.
Salehi, B, Butnariu, M, Corneanu, M, Sarac, I, Vlaisavljevic, S, Kitic, D, Rahavian, A, Abedi, A, Karkan, MF, Bhatt, ID, et al
Phytotherapy research : PTR. 2020;(4):769-787
Abstract
Chronic pelvic pain syndrome (CPPS) can be triggered by a various types of gynecological, gastrointestinal, urological, and musculoskeletal disorders. Recently, the role of the central nervous system has proven to be an integral part on the development of any chronic pain syndrome, including CPPS. However, owing to the complex and heterogeneous etiology and pathophysiology of CPPS, the establishment of effective therapeutic interventions remains challenging for both physicians and patients. Nonetheless, recent studies have pointed that medicinal plants and their secondary metabolites can be effectively used in CPPS therapy, besides contributing to restore the patients' quality of life and potentiate the conventional CPPS management. In this sense, this review aims to provide a careful overview on the biomedical data for the use of medicinal plants use and their secondary metabolites on CPPS management.
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New Concepts of Chronic Pain and the Potential Role of Complementary Therapies.
Wojcikowski, K, Vigar, VJ, Oliver, CJ
Alternative therapies in health and medicine. 2020;(S1):18-31
Abstract
CONTEXT The mechanisms of chronic pain involve complex neuroplastic changes at all 3 orders of neurons involved in the transmission of pain as well as changes in the descending inhibitory pathway. Although traditional pharmaceutical therapies have some efficacy, substantial scope exists for a new model of individualized therapy, tailored to the specific response of each patient. Because changes occur at all levels of the pain pathway, successful treatment may require a combination of therapies with different mechanisms of action. OBJECTIVE The research team intended to examine the potential changes within the peripheral nervous system (PNS) and central nervous system (CNS) of patients with chronic pain and to propose a model of chronic pain treatment involving multimodal, complementary therapies for individualized treatment targeting multiple sites along the pain pathway. DESIGN The research team performed a review of the literature in the field. SETTING The study took place in the School of Health and Human Sciences at Southern Cross University (Lismore, New South Wales, Australia). INTERVENTIONS A growing body of evidence supports the use of a variety of complementary therapies to treat chronic pain, including curcumin, capsaicin, vitamin D, omega-3 fatty acids, lipoic acid, acupuncture, yoga, meditation, and mindfulness meditation. These therapies vary with respect to the mechanisms by which they act and the potential areas of effect along the pain pathway. RESULTS The literature review showed a number of complementary therapies may be efficacious in reducing chronic pain and/or the need for analgesics, which may offer a reduced adverse effect profile. These therapies include curcumin, capsaicin, vitamin D, omega-3 fatty acids, lipoic acid, acupuncture, yoga, meditation, and mindfulness meditation. Response rates to treatment are likely to vary between people and within therapies. CONCLUSIONS The available evidence suggests that efficacious complementary therapies exist that target all 3 orders of neurons and, therefore, the authors recommend multimodal individualized treatment for each patient. There is high interindividual variability between patients in responses to treatments.
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[Acupuncture for pain and allergic rhinitis-from clinical experience to evidence].
Brinkhaus, B, Ortiz, M, Dietzel, J, Willich, S
Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz. 2020;(5):561-569
Abstract
BACKGROUND Acupuncture is a traditional Chinese medicine therapy method that is also frequently used in the western world. It has been the subject of intensive scientific research over the past two decades. AIM OF THE WORK To describe the efficacy, therapy safety, and health economic relevance of acupuncture for chronic pain disorders and allergic diseases. MATERIAL AND METHODS In the context of a review (narrative review) the relevant literature was selected, presented, and interpreted. RESULTS Acupuncture is effective in chronic pain disorders such as chronic knee joint pain in osteoarthritis, migraine, tension headache, chronic lumbar spine pain, chronic cervical spine pain, shoulder pain, dysmenorrhea, and fibromyalgia under routine conditions. In addition, specific efficacy is shown in most chronic pain indications. Acupuncture is also effective in patients with allergic diseases. In large clinical studies, acupuncture has proven to be a relatively safe therapy, but severe complications (e.g. pneumothorax cases, hepatitis B) also occur in rare instances. Acupuncture is usually associated with higher therapy costs, but is considered a cost-effective treatment strategy for pain disorders. DISCUSSION As a nonpharmacological procedure, acupuncture is becoming increasingly important in pain and allergy therapy and is therefore increasingly included in current guidelines. In further studies, the efficacy of acupuncture should be determined in other indications and the mechanisms of action of this therapy method should be investigated.
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Does diet play a role in reducing nociception related to inflammation and chronic pain?
Bjørklund, G, Aaseth, J, Doşa, MD, Pivina, L, Dadar, M, Pen, JJ, Chirumbolo, S
Nutrition (Burbank, Los Angeles County, Calif.). 2019;:153-165
Abstract
Dietary habits are fundamental issues to assess when modulating health and well-being; however, different nutritional panels may help individuals prevent acute and chronic pain. Many substances, known to be active antioxidants and anti-inflammatory compounds, should serve this fundamental task. Antinociceptive and analgesic natural compounds include flavonoids, terumbone from ginger root, curcuminoids, ω-3 polyunsaturated fatty acids, and taurine. Furthermore, correct intake of trace elements and minerals is strategic to reduce inflammation-related pain. This review addresses these items in an effort to suggest new criteria for proper dietary supplementation to prevent pain.