Introduction: Neurodegeneration is the term describing the death of neurons both in the central nervous system and periphery. When affecting the central nervous system, it is responsible for diseases like Alzheimer's disease, Parkinson's disease, Huntington's disorders, amyotrophic lateral sclerosis, and other less frequent pathologies. There are several common pathophysiological elements that are shared in the neurodegenerative diseases. The common denominators are oxidative stress (OS) and inflammatory responses. Unluckily, these conditions are difficult to treat. Because of the burden caused by the progression of these diseases and the simultaneous lack of efficacious treatment, therapeutic approaches that could target the interception of development of the neurodegeneration are being widely investigated. This review aims to highlight the most recent proposed novelties, as most of the previous approaches have failed. Therefore, older approaches may currently be used by healthcare professionals and are not being presented. Methods: This review was based on an electronic search of existing literature, using PubMed as primary source for important review articles, and important randomized clinical trials, published in the last 5 years. Reference lists from the most recent reviews, as well as additional sources of primary literature and references cited by relevant articles, were used. Results: Eighteen natural pharmaceutical substances and 24 extracted or recombinant products, and artificial agents that can be used against OS, inflammation, and neurodegeneration were identified. After presenting the most common neurodegenerative diseases and mentioning some of the basic mechanisms that lead to neuronal loss, this paper presents up to date information that could encourage the development of better therapeutic strategies. Conclusions: This review shares the new potential pharmaceutical and not pharmaceutical Enhanced Digital Features To view enhanced digital features for this article go to
In different retrospective studies, a protective role of regional anesthetics in reducing cancer recurrence after surgery was indicated. Accordingly, it has been previously demonstrated a protective effect of anesthetics in breast cancer cells and in other types of cancer. On the other hand, how anesthetics influence cancer needs in-depth investigations. For this purpose, two different human cancer cell lines, MDA-MB-231, triple-negative breast cancer, and A375, melanoma, were used in this study. By means of Western blotting and immunofluorescence and terminal deoxynucleotidyl transferase dUTP nick end labeling analyses, the signal transduction pathways activated by the anesthetics, such as ropivacaine and levobupivacaine, were analyzed.The data obtained demonstrated that both anesthetics are able to counteract cell proliferation by positively modulating cell death signaling and by decreasing cell proliferation and survival pathways.
IntroductionParaneoplastic neurological syndromes (PNS) consist of a heterogeneous group of neurological disorders triggered by cancer. The aim of this systematic review is to estimate the reported prevalence of pain in patients with paraneoplastic peripheral neuropathy (PPN).MethodsA systematic computer-based literature search was conducted on PubMed database.ResultsOur search strategy resulted in the identification of 126 articles. After the eligibility assessment, 45 papers met the inclusion criteria. Full clinical and neurophysiological data were further extracted and involved 92 patients with PPN (54.5% males, mean age 60.0 ± 12.2 years). The commonest first manifestation of PPN is sensory loss (67.4%), followed by pain (41.3%), weakness (22.8%), and sensory ataxia (20.7%). In 13.0% of the cases, pain was the sole first manifestation of the PPN. During the course of the PPN, 57.6% of the patients may experience pain secondary to the neuropathy.ConclusionsPain is very prevalent within PPN. Pain specialists should be aware of this. Detailed history-taking, full clinical examination, and requesting nerve conduction studies might lead to an earlier diagnosis of an underlying malignancy.
Introduction This observational study was designed to evaluate the efficacy of ultramicronized palmitoylethanolamide (um-PEA) (Normast®) administration, as add-on therapy for chronic pain, in the management of pain-resistant patients affected by failed back surgery syndrome. Methods A total of 35 patients were treated with tapentadol (TPD) and pregabalin (PGB). One month after the start of standard treatment, um-PEA was added for the next two months. Pain was evaluated by the Visual Analogue Scale (VAS) at the time of enrollment (T0) and after one (T1), two (T2), and three (T3) months. Results After the first month with TDP + PGB treatment only, VAS score decreased significantly from 5.7 ± 0.12 at the time of enrollment (T0) to 4.3 ± 0.11 (T1) (p < 0.0001); however, it failed to provide significant subjective improvement in pain symptoms. Addition of um-PEA led to a further and significant decrease in pain intensity, reaching VAS scores of 2.7 ± 0.09 (T2) and 1.7 ± 0.11 (T3, end of treatment) (p < 0.0001) without showing any side effects. Conclusions This observational study provides evidence, albeit preliminary, for the efficacy and safety of um-PEA (Normast) as part of a multimodal therapeutic regimen in the treatment of pain-resistant patients suffering from failed back surgery syndrome.
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