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Peripheral neurotoxicity

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https://www.readbyqxmd.com/read/28323007/intrathecal-application-of-the-microglial-inhibitor-minocycline-attenuates-sympathoexcitatory-and-proarrhythmogenic-changes-in-rats-with-chronic-temporal-lobe-epilepsy
#1
Amol M Bhandare, Komal Kapoor, Kim L Powell, Emma Braine, Pablo Casillas-Espinosa, Terence J O'Brien, Melissa M J Farnham, Paul M Pilowsky
The incidence of sudden unexpected death in epilepsy (SUDEP) is highest in people with chronic and drug-resistant epilepsy. Chronic spontaneous recurrent seizures cause cardiorespiratory autonomic dysfunctions. Pituitary adenylate cyclase-activating polypeptide (PACAP) is neuroprotective, whereas microglia produce both pro- and anti-inflammatory effects in the CNS. During acute seizures in rats, PACAP and microglia produce sympathoprotective effect at the intermediolateral cell column (IML), whereas their action on the presympathetic rostral ventrolateral medulla (RVLM) neurons mediates proarrhythmogenic changes...
March 18, 2017: Neuroscience
https://www.readbyqxmd.com/read/28317148/bortezomib-induced-peripheral-neuropathy-a-genome-wide-association-study-on-multiple-myeloma-patients
#2
Chiara Campo, Miguel Inacio da Silva Filho, Niels Weinhold, Seyed Hamidreza Mahmoudpour, Hartmut Goldschmidt, Kari Hemminki, Maximilian Merz, Asta Försti
The proteasome-inhibitor bortezomib was introduced into the treatment of multiple myeloma more than a decade ago. It is clinically beneficial, but peripheral neuropathy (PNP) is a side effect that may limit its use in some patients. To examine the possible genetic predisposing factors to PNP, we performed a genome-wide association study on 646 bortezomib-treated German multiple myeloma patients. Our aim was to identify genetic risk variants associated with the development of PNP as a serious side effect of the treatment...
March 20, 2017: Hematological Oncology
https://www.readbyqxmd.com/read/28306543/peripheral-levels-of-bdnf-and-opiate-use-disorder-literature-review-and-update
#3
Raul Felipe Palma-Álvarez, Elena Ros-Cucurull, Kristopher Amaro-Hosey, Laia Rodriguez-Cintas, Lara Grau-López, Margarida Corominas-Roso, Cristina Sánchez-Mora, Carlos Roncero
Several neurobiological factors are related to opiate-use disorder (OUD), and among them, neurotrophins have a relevant role. Brain-derived neurotrophic factor (BDNF) is a central neurotrophin involved in many neuronal processes, and it has been related to several psychiatric diseases and addictive disorders. BDNF can be measured in plasma and serum; its levels may reflect BDNF concentrations in the central nervous system (CNS) and, indirectly, CNS processes. Hence, peripheral BDNF could be a biomarker in clinical practice...
March 17, 2017: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/28286483/long-term-effects-pathophysiological-mechanisms-and-risk-factors-of-chemotherapy-induced-peripheral-neuropathies-a-comprehensive-literature-review
#4
REVIEW
Nicolas Kerckhove, Aurore Collin, Sakahlé Condé, Carine Chaleteix, Denis Pezet, David Balayssac
Neurotoxic anticancer drugs, such as platinum-based anticancer drugs, taxanes, vinca alkaloids, and proteasome/angiogenesis inhibitors are responsible for chemotherapy-induced peripheral neuropathy (CIPN). The health consequences of CIPN remain worrying as it is associated with several comorbidities and affects a specific population of patients already impacted by cancer, a strong driver for declines in older adults. The purpose of this review is to present a comprehensive overview of the long-term effects of CIPN in cancer patients and survivors...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28286117/carvedilol-prevents-functional-deficits-in-peripheral-nerve-mitochondria-of-rats-with-oxaliplatin-evoked-painful-peripheral-neuropathy
#5
Aparna Areti, Prashanth Komirishetty, Ashutosh Kumar
Oxaliplatin use as chemotherapeutic agent is frequently limited by cumulative neurotoxicity which may compromise quality of life. Reports relate this neurotoxic effect to oxidative stress and mitochondrial dysfunction in peripheral nerves and dorsal root ganglion (DRG). Carvedilol is an antihypertensive drug, has also been appreciated for its antioxidant and mitoprotective properties. Carvedilol co-treatment did not reduce the anti-tumor effects of oxaliplatin in human colon cancer cells (HT-29), but exhibited free radical scavenging activity against oxaliplatin-induced oxidative stress in neuronal cells (Neuro-2a)...
March 9, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28285346/complex-changes-in-the-innate-and-adaptive-immunity-accompany-progressive-degeneration-of-the-nigrostriatal-pathway-induced-by-intrastriatal-injection-of-6-hydroxydopamine-in-the-rat
#6
Giulia Ambrosi, Natasa Kustrimovic, Francesca Siani, Emanuela Rasini, Silvia Cerri, Cristina Ghezzi, Giuseppe Dicorato, Sofia Caputo, Franca Marino, Marco Cosentino, Fabio Blandini
We investigated changes in innate and adaptive immunity paralleling the progressive nigrostriatal damage occurring in a neurotoxic model of Parkinson's disease (PD) based on unilateral infusion of 6-hydroxydopamine (6-OHDA) into the rat striatum. A time-course analysis was conducted to assess changes in morphology (activation) and cell density of microglia and astrocytes, microglia polarization (M1 vs. M2 phenotype), lymphocyte infiltration in the lesioned substantia nigra pars compacta (SNc), and modifications of CD8+ and subsets of CD4+ T cell in peripheral blood accompanying nigrostriatal degeneration...
March 11, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28280649/first-case-of-foot-drop-associated-with-capecitabine-in-a-patient-with-thymidylate-synthase-polymorphism
#7
Andrew B Wilks, Muhammad W Saif
Capecitabine, an oral prodrug of 5-FU, has been approved by the FDA for use in patients with breast and colon cancers. In addition, capecitabine is commonly used in patients with other malignancies such as pancreatic, gastroesophageal, and hepatobiliary tract cancers. Though cerebellar toxicity is a rare but well-known side effect of intravenous 5-FU therapy, peripheral neuropathy with capecitabine has only been described in rare cases. In this case report, we describe a 79-year-old patient with locally advanced adenocarcinoma of the pancreas undergoing chemoradiation therapy with capecitabine who developed peripheral sensorimotor neuropathy...
January 24, 2017: Curēus
https://www.readbyqxmd.com/read/28280368/evidence-from-a-meta-analysis-is-nivolumabneurotoxic-in-cancer-patients
#8
Xiangyi Kong, Yanguo Kong
The aim of this study was to summarize the findings of previous studies focusing on whether the risks of certain neurotoxicities are correlated to the programmed death 1 (PD-1) inhibitor nivolumab versus other chemotherapy or immunotherapy drugs. Six eligible studies, including 3,023 patients, were considered in the meta-analysis. The risk ratios (RRs) of fatigue, headache, dysgeusia, vertigo, paresthesia, anxiety or malaise and peripheral neuropathy were 0.908 (95% confidence interval [95% CI]: 0.724, 1.138; P=0...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28271909/challenges-in-searching-for-therapeutics-against-botulinum-neurotoxins
#9
Marco Pirazzini, Ornella Rossetto
Botulinum neurotoxins (BoNTs) are the most potent toxins known. BoNTs are responsible for botulism, a deadly neuroparalytic syndrome caused by the inactivation of neurotransmitter release at peripheral nerve terminals. Thanks to their specificity and potency, BoNTs are both considered potential bio-weapons and therapeutics of choice for a variety of medical syndromes. Several variants of BoNTs have been identified with individual biological properties and little antigenic relation. This expands greatly the potential of BoNTs as therapeutics but poses a major safety problem, increasing the need for finding appropriate antidotes...
March 8, 2017: Expert Opinion on Drug Discovery
https://www.readbyqxmd.com/read/28267745/disturbed-sensorimotor-and-electrophysiological-patterns-in-lead-intoxicated-rats-during-development-are-restored-by-curcumin-i
#10
Hind Benammi, Hasna Erazi, Omar El Hiba, Laurent Vinay, Hélène Bras, Jean-Charles Viemari, Halima Gamrani
Lead poisoning is one of the most significant health problem of environmental origin. It is known to cause different damages in the central and peripheral nervous system which could be represented by several neurophysiological and behavioral symptoms. In this study we firstly investigated the effect of lead prenatal exposure in rats to (3g/L), from neonatal to young age, on the motor/sensory performances, excitability of the spinal cord and gaits during development. Then we evaluated neuroprotective effects of curcumin I (Cur I) against lead neurotoxicity, by means of grasping and cliff avoidance tests to reveal the impairment of the sensorimotor functions in neonatal rats exposed prenatally to lead...
2017: PloS One
https://www.readbyqxmd.com/read/28265863/examining-the-impact-of-a-web-based-intervention-to-promote-patient-activation-in-chemotherapy-induced-peripheral-neuropathy-assessment-and-management
#11
Robert Knoerl, Deborah Lee, James Yang, Celia Bridges, Grace Kanzawa-Lee, G Lita Smith, Ellen M Lavoie Smith
Lack of activation in self-care can compromise a patient's ability to monitor and manage cancer treatment-related side effects, such as chemotherapy-induced peripheral neuropathy (CIPN). The web-based Carevive® Care Planning System (CPS) was developed to promote evidence-based symptom assessment and treatment by enhancing patients' involvement in their own care. The purpose of this single-arm, pre-test/post-test, prospective study was to examine whether the CPS can promote patient activation in CIPN symptom assessment and management...
March 6, 2017: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
https://www.readbyqxmd.com/read/28243090/an-in-vivo-mechanism-for-the-reduced-peripheral-neurotoxicity-of-nk105-a-paclitaxel-incorporating-polymeric-micellar-nanoparticle-formulation
#12
Iwao Nakamura, Eiji Ichimura, Rika Goda, Hitomi Hayashi, Hiroko Mashiba, Daichi Nagai, Hirofumi Yokoyama, Takeshi Onda, Akira Masuda
In our previous rodent studies, the paclitaxel (PTX)-incorporating polymeric micellar nanoparticle formulation NK105 had showed significantly stronger antitumor effects and reduced peripheral neurotoxicity than PTX dissolved in Cremophor(®) EL and ethanol (PTX/CRE). Thus, to elucidate the mechanisms underlying reduced peripheral neurotoxicity due to NK105, we performed pharmacokinetic analyses of NK105 and PTX/CRE in rats. Among neural tissues, the highest PTX concentrations were found in the dorsal root ganglion (DRG)...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28241062/increased-breakdown-of-kynurenine-towards-its-neurotoxic-branch-in-bipolar-disorder
#13
Armin Birner, Martina Platzer, Susanne Astrid Bengesser, Nina Dalkner, Frederike T Fellendorf, Robert Queissner, Rene Pilz, Philipp Rauch, Alexander Maget, Carlo Hamm, Simone Herzog-Eberhard, Harald Mangge, Dietmar Fuchs, Natalie Moll, Sieglinde Zelzer, Gregor Schütze, Markus Schwarz, Bernd Reininghaus, Hans-Peter Kapfhammer, Eva Z Reininghaus
INTRODUCTION: Bipolar disorder (BD) is a chronic psychiatric disease which can take most different and unpredictable courses. It is accompanied by unspecific brainstructural changes and cognitive decline. The neurobiological underpinnings of these processes are still unclear. Emerging evidence suggests that tryptophan catabolites (TRYCATs), which involve all metabolites of tryptophan towards the kynurenine (KYN) branch, are involved in the etiology as well as in the course of BD. They are proposed to be mediators of immune-inflammation and neurodegeneration...
2017: PloS One
https://www.readbyqxmd.com/read/28205185/use-of-an-alpha-lipoic-methylsulfonylmethane-and-bromelain-dietary-supplement-opera-%C3%A2-for-chemotherapy-induced-peripheral-neuropathy-management-a-prospective-study
#14
Isacco Desideri, Giulio Francolini, Carlotta Becherini, Francesca Terziani, Camilla Delli Paoli, Emanuela Olmetto, Mauro Loi, Marco Perna, Icro Meattini, Vieri Scotti, Daniela Greto, Pierluigi Bonomo, Susanna Sulprizio, Lorenzo Livi
Chemotherapy-induced peripheral neuropathy (CIPN) is a major clinical problem associated with a number of cytotoxic agents. OPERA(®) (GAMFARMA srl, Milan, Italy) is a new dietary supplement where α-lipoic acid, Boswellia Serrata, methylsulfonylmethane and bromelain are combined in a single capsule. The aim of this prospective study was to determine the efficacy and safety of OPERA(®) supplementation in a series of patients affected by CIPN. We selected 25 subjects with CIPN evolving during or after chemotherapy with potentially neurotoxic agents...
March 2017: Medical Oncology
https://www.readbyqxmd.com/read/28186109/astragali-radix-could-it-be-an-adjuvant-for-oxaliplatin-induced-neuropathy
#15
Lorenzo Di Cesare Mannelli, Alessandra Pacini, Laura Micheli, Angelo Pietro Femia, Mario Maresca, Matteo Zanardelli, Alfredo Vannacci, Eugenia Gallo, Anna Rita Bilia, Giovanna Caderni, Fabio Firenzuoli, Alessandro Mugelli, Carla Ghelardini
Neurotoxicity is a major side effect of platinum derivatives both during and after treatment. In the absence of effective pharmacological compounds, the opportunity to identify safe adjuvant treatments among medicinal plants seems appropriate. Astragali radix is an adaptogenic herbal product recently analyzed in platinum-treated cancer patients. With the aim of evaluating the anti-neuropathic profile of Astragali radix, a previously characterized aqueous (Aqu) and two hydroalcoholic (20%HA and 50%HA) extracts were tested in a rat model of oxaliplatin-induced neuropathy...
February 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28181572/effects-of-taxol-on-regeneration-in-a-rat-sciatic-nerve-transection-model
#16
Shih-Tien Hsu, Chun-Hsu Yao, Yuan-Man Hsu, Jia-Horng Lin, Yung-Hsiang Chen, Yueh-Sheng Chen
Recent studies describe taxol as a candidate treatment for promoting central nerve regeneration. However, taxol has serious side effects including peripheral neurotoxicity, and little information is known about the effect of taxol on peripheral nerve regeneration. We investigated the effects of taxol on regeneration in a rat sciatic nerve transection model. Rats were divided into four groups (n = 10): normal saline (i.p.) as the control, Cremophor EL vehicle, and 2 or 6 mg/kg of taxol in the Cremophor EL solution (four times in day-2, 4, 6, and 8), respectively...
February 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28169005/nelarabine-associated-reversible-guillain-barr%C3%A3-like-syndrome-or-myelopathy-in-an-adult-patient-with-primary-refractory-t-lymphoblastic-lymphoma
#17
Chrysavgi Lalayanni, Eirini Baldoumi, Sotiris Papayiannopoulos, Konstantia Tziola, Riad Saloum, Achilles Anagnostopoulos
Nelarabine is a purine analogue used for the treatment of patients with relapsed or refractory T-cell acute lymphoblastic leukemia and T-cell lymphoblastic lymphoma mainly as a bridge to stem cell transplantation. The water-soluble prodrug of 9-beta-D-arabinofuranosyl guanine (Ara-G) is phosphorylated within leukemic cells to form ara-G triphosphate (ara-GTP), which terminates DNA chain elongation, resulting in cell death. The drug received accelerated approval by the US Food and Drug Administration (FDA) on October 2005 based on the induction of complete remissions in 2 phase II trials...
November 17, 2016: Current Problems in Cancer
https://www.readbyqxmd.com/read/28161653/low-level-laser-therapy-lllt-accelerates-the-sternomastoid-muscle-regeneration-process-after-myonecrosis-due-to-bupivacaine
#18
Cristiane Neves Alessi Pissulin, Ana Angélica Henrique Fernandes, Alejandro Manuel Sanchez Orellana, Renata Calciolari Rossi E Silva, Selma Maria Michelin Matheus
BACKGROUND: Because of its long-lasting analgesic action, bupivacaine is an anesthetic used for peripheral nerve block and relief of postoperative pain. Muscle degeneration and neurotoxicity are its main limitations. There is strong evidence that low-level laser therapy (LLLT) assists in muscle and nerve repair. The authors evaluated the effects of a Gallium Arsenide laser (GaAs), on the regeneration of muscle fibers of the sternomastoid muscle and accessory nerve after injection of bupivacaine...
March 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28156643/pilot-study-of-minocycline-for-the-prevention-of-paclitaxel-associated-neuropathy-accru-ru221408i
#19
Travis J Dockter, Patricia J Zekan, Briant Fruth, Kathryn Jean Ruddy, Lauren E Ta, Todor Dentchev, Nguyet Le-Lindqwister, William M Sikov, Charles L Loprinzi
220 Background: Paclitaxel is associated with both an acute pain syndrome (P-APS) and chronic chemotherapy-induced peripheral neuropathy (CIPN). Preliminary animal data suggest that minocycline may be effective for the prevention of chemotherapy-induced neurotoxicity. The purpose of this pilot study was to investigate the efficacy of minocycline for the prevention of CIPN and P-APS. METHODS: Patients with breast cancer were enrolled prior to initiating neoadjuvant or adjuvant weekly paclitaxel for 12 weeks...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28139029/vincristine-induced-peripheral-neuropathy-in-survivors-of-childhood-acute-lymphoblastic-leukaemia
#20
Chee Geap Tay, Vanessa Wan Mun Lee, Lai Choo Ong, Khean Jin Goh, Hany Ariffin, Choong Yi Fong
BACKGROUND: Vincristine, an essential component of childhood acute lymphoblastic leukaemia (ALL) therapeutic protocols, is associated with dose-dependent neurotoxicity, but its long-term morbidity in treated children has not been clearly elucidated. The aim of this study is to determine the prevalence of vincristine-induced peripheral neuropathy (VIPN) among Malaysian childhood ALL survivors and its impact on motor function and quality of life. PROCEDURE: Survivors of childhood ALL aged 4-18 years who had completed chemotherapy for 2 years or more were evaluated for VIPN using both the clinical Total Neuropathy Score (cTNS) and nerve conduction studies...
January 31, 2017: Pediatric Blood & Cancer
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