Crotoxin down-modulates pro-inflammatory cells and alleviates pain on the MOG35-55-induced experimental autoimmune encephalomyelitis, an animal model of multiple sclerosis

Publication date: Available online 13 December 2019Source: Brain, Behavior, and ImmunityAuthor(s): N.B. Teixeira, M.B. Sant'Anna, A.C. Giardini, L.P. Araujo, L.A. Fonseca, A.S. Basso, Y. Cury, G. PicoloAbstractMultiple sclerosis (MS) is a Central Nervous System inflammatory demyelinating disease that has as primary symptoms losses of sensory and motor functions, including chronic pain. To date, however, few studies have investigated the mechanisms of chronic pain in animal models of MS since locomotor impairments render difficult its evaluation. It was previously demonstrated that in the MOG35-55-induced EAE, an animal model of MS, the hypernociception appears before the onset of motor disability, allowing for the study of these two phenomena separately. Here, we evaluated the effect of crotoxin (CTX), a neurotoxin isolated from the Crotalus durissus terrificus snake venom that displays, at non-toxic dose, antinociceptive, anti-inflammatory and immunomodulatory effects, in the pain and in symptoms progression of EAE. The pain threshold of female C57BL/6 mice decreased at the 4th day after immunization, while the first sign of disease appeared around the 11st-12nd days, coinciding with the onset of motor abnormalities. CTX (40 µg/kg, s.c.) administered in a single dose on the 5th day after immunization, induced a long-lasting analgesic effect (5 days), without interfering with the clinical signs of the disease. On the other hand, when crotoxin was administered for 5 cons...
Source: Brain, Behavior, and Immunity - Category: Neurology Source Type: research

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We describe the most highly recommended generic and disease-specific PRO tools in SCD and discuss the challenges of incorporating them in clinical practice. EXPERT OPINION: PRO measures are essential to incorporate into SCD clinical trials either as primary or secondary outcomes. The use of PRO measures in SCD facilitates a patient-centered approach, which is likely to lead to improved outcomes. Significant challenges remain in adapting PRO tools to routine clinical use and in developing countries. PMID: 33034214 [PubMed - as supplied by publisher]
Source: Expert Review of Hematology - Category: Hematology Tags: Expert Rev Hematol Source Type: research
Currently in fellowship doing bread/butter procedures (MBB, epidurals, PNB, few SCS/PNS trials, etc.) and just interviewed at a private practice spot where they do a lot of procedures that I will have not done any training in prior to graduating (e.g. IT pump, SI fusion, Vertiflex, Kypho, MILD, Discectomy, lots of SCS/PNS trials etc) and significant amount of "OR pain procedures" at a very busy practice seeing 30-40 pts/day - how many of you are commonly performing these procedures and are... private practice concern
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Pain Medicine Source Type: forums
Publication date: Available online 9 October 2020Source: Multiple Sclerosis and Related DisordersAuthor(s): Brenda Bertado-Cortés, Claudia Venzor-Mendoza, Daniel Rubio-Ordoñez, José Renán Pérez-Pérez, Lucy Andrea Novelo-Manzano, Lyda Viviana Villamil-Osorio, María de Jesús Jiménez-Ortega, María de la Luz Villalpando-Gueich, Nayeli Alejandra Sánchez-Rosales, Verónica García-Talavera
Source: Multiple Sclerosis and Related Disorders - Category: Neurology Source Type: research
Publication date: October 2020Source: Brain, Behavior, and Immunity, Volume 89Author(s): Fernando Lopes, Fernando A. Vicentini, Nina L. Cluny, Alexander J. Mathews, Benjamin H. Lee, Wagdi A. Almishri, Lateece Griffin, William Gonçalves, Vanessa Pinho, Derek M. McKay, Simon A. Hirota, Mark G. Swain, Quentin J. Pittman, Keith A. Sharkey
Source: Brain, Behavior, and Immunity - Category: Neurology Source Type: research
BEST supplements to relieve joint pain: Is your arthritis playing up? The wetter and colder months could partially be to blame. These two pills may help.
Source: Daily Express - Health - Category: Consumer Health News Source Type: news
Authors: Kim H, Lim YM, Lee EJ, Kim HW, Ahn HS, Kim KK PMID: 33029979 [PubMed]
Source: Journal of Clinical Neurology - Category: Neurology Tags: J Clin Neurol Source Type: research
Abstract Multiple sclerosis (MS) is a Central Nervous System inflammatory demyelinating disease that has as primary symptoms losses of sensory and motor functions, including chronic pain. To date, however, few studies have investigated the mechanisms of chronic pain in animal models of MS since locomotor impairments render difficult its evaluation. It was previously demonstrated that in the MOG35-55-induced EAE, an animal model of MS, the hypernociception appears before the onset of motor disability, allowing for the study of these two phenomena separately. Here, we evaluated the effect of crotoxin (CTX), a neurot...
Source: Brain, Behavior, and Immunity - Category: Neurology Authors: Tags: Brain Behav Immun Source Type: research
The first rejuvenation therapies to work well enough to merit the name will be based on the SENS vision: that aging is at root caused by a few classes of accumulated cell and tissue damage, and biotechnologies that either repair that damage or render it irrelevant will as a result produce rejuvenation. Until very recently, no medical technology could achieve this goal, and few research groups were even aiming for that outcome. We are in the midst of a grand transition, however, in which the research and development community is finally turning its attention to the causes of aging, understanding that this is the only way to...
Source: Fight Aging! - Category: Research Authors: Tags: Medicine, Biotech, Research Source Type: blogs
FIGHT AGING! NEWSLETTER June 13th 2016 Fight Aging! provides a weekly digest of news and commentary for thousands of subscribers interested in the latest longevity science: progress towards the medical control of aging in order to prevent age-related frailty, suffering, and disease, as well as improvements in the present understanding of what works and what doesn't work when it comes to extending healthy life. Expect to see summaries of recent advances in medical research, news from the scientific community, advocacy and fundraising initiatives to help speed work on the repair and reversal of aging, links to on...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
This study teaches us that poor wound healing and wrinkling and sagging that occur in aging skin share similar mechanisms." Reduced cell cohesiveness of outgrowths from eccrine sweat glands delays wound closure in elderly skin Human skin heals more slowly in aged vs. young adults, but the mechanism for this delay is unclear. In humans, eccrine sweat glands (ESGs) and hair follicles underlying wounds generate cohesive keratinocyte outgrowths that expand to form the new epidermis. Our results confirm that the outgrowth of cells from ESGs is a major feature of repair in young skin. Strikingly, in aged s...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
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