News Steroid Use Lowers Oxidative Stress in Cerebrospinal Fluid of Progressive MS Patients in Pilot Study Steroid Use Lowers Oxidative Stress in Cerebrospinal Fluid of Progressive MS Patients in Pilot Study by Patricia Inacio, PhD | July 13, 2016 Share this article: Share article via email Copy article link AĀ pilot study inĀ patients with progressive multiple sclerosis (MS) found a steroid treatmentĀ of benefit by decreasingĀ oxidative stressĀ in theĀ cerebrospinal fluid. The study, āOne-time intrathecal triamcinolone acetonide application alters the redox potential in cerebrospinal fluid of progressive multiple sclerosis patients: a pilot study,ā was published in the journalĀ Therapeutic Advances in Neurological Disorders. Cerebrospinal fluid (CSF)Ā is a clearĀ liquidĀ that surrounds the brain and spinal cord, acting like a cushion to protect against injury. Previous studies showed that alterations in CSF composition are found in disease states. For example, CSF in healthy individuals lacks certain chemical radicals, molecules found in high levels in patients with amyotrophic lateral sclerosis (ALS). This increase may be the result of chronic neurodegenerative process. Our body possesses mechanisms, such as antioxidant responses, toĀ counteract the accumulation of damaging proteins that result from oxidative stress. Antioxidant responses, in fact, are an important mechanism for maintaining homeostasis and viability. Investigating these mechanisms in theĀ cerebrospinal fluidĀ of MS patients may give indications as toĀ the interplay ofĀ disease progression, chronic inflammation, and response to treatment. Researchers studiedĀ the effect of oneĀ delayed-release steroid application with triamcinolone (TCA)Ā injection on the antioxidant system in the CSF of chronic progressive MS patients. TheyĀ treated a total of 16 MS patients with 40 mg of TCA, then analyzed the antioxidant potential by measuring the number of proteins positive for an increase inĀ copper absorption. The research team observed thatĀ radicals were present in MS patientsā CSF, while absent in healthy controls. Moreover, they detected an increase in copper absorption, which reflects an elevated content of reduced proteins in the CSF. These results support the beneficial role of TCA by decreasing the generation of damaging reactive oxygen species, the detrimental outcomes of oxidative stress. Although preliminary, the results seem to indicate that intrathecal steroid application alters, in a positive way, the redox potential in CSF. Future studies are warranted to investigate how TCA therapy may impact the clinical outcomes of patients with progressive MS. Print This Page About the Author Patricia Inacio, PhD Patricia holds her PhD in cell biology from the University Nova de Lisboa, Portugal, and has served as an author on several research projects and fellowships, as well as major grant applications for European agencies. She also served as a PhD student research assistant in the Department of Microbiology & Immunology, Columbia University, New York, for which she was awarded a Luso-American Development Foundation (FLAD) fellowship. Tags cerebrospinal fluid, CSF, oxidative stress, pilot study, reactive oxygen species, steroids
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