Breaking News
June 19, 2018 - Study finds elevated risk of congenital defects in lithium-exposed infants
June 19, 2018 - Test-Taking Can Be Tough for Kids With Vision Problems
June 19, 2018 - Injections for knee osteoarthritis—’subtle but significant’ impact of revisions in clinical practice guidelines
June 19, 2018 - Researchers develop new approach to assess effectiveness of Men B vaccine
June 19, 2018 - Study shows link between financial literacy and hospitalization risk in older adults
June 19, 2018 - New study examines how the brain plays role in rheumatoid arthritis inflammation
June 19, 2018 - Researchers discover new defense mechanism against oxygen radicals
June 19, 2018 - WVU researcher aims to produce updated whooping cough vaccine
June 19, 2018 - Scientists develop novel computational framework to support personalized cancer treatment
June 19, 2018 - Rate of dementia on the decline—but beware of growing numbers
June 19, 2018 - Microglia play protective role in response to retinal detachment, shows study
June 19, 2018 - Technology breakthrough could enable detection of fetal genetic abnormalities in early pregnancy
June 19, 2018 - Novel chip can be used to identify rhinovirus strains as cause of asthma
June 19, 2018 - Effects of in vitro fertilization depend on genetic variation inherited from parents
June 19, 2018 - Heart attack patients unable to resume work report depression and financial hardship
June 19, 2018 - Study combines gene editing and stem cell technologies to predict person’s risk for heart disease
June 19, 2018 - Weight loss of 20% or greater results in better outcomes for overweight, obese adults with knee osteoarthritis
June 19, 2018 - Alnylam Reports Updated Positive Results from Phase 1/2 Study of Lumasiran in Patients with Primary Hyperoxaluria Type 1 (PH1)
June 19, 2018 - Study predicts most people with earliest Alzheimer’s signs won’t develop dementia associated with the disease
June 19, 2018 - Abnormal sleep duration linked to metabolic syndrome in new study
June 19, 2018 - Researchers develop new method to preserve fertility in boys with prepubertal cancer
June 19, 2018 - Late onset of diabetes could be indicative of pancreatic cancer
June 19, 2018 - WHO releases new International Classification of Diseases (ICD-11)
June 19, 2018 - Skin tone makes big difference in diagnosis and treatment of dermatologic conditions
June 19, 2018 - After addiction, the long road back to good health
June 19, 2018 - High blood pressure could be an early sign of dementia
June 19, 2018 - Innovative drugs and new European treatment guidelines refine, improve MS therapy
June 19, 2018 - BIDMC scientists develop new tool to benefit patients with HCV-associated liver failure
June 19, 2018 - Diabetes diagnosis may come with increased risk of pancreatic cancer for African-Americans, Latinos
June 19, 2018 - Personalized Goals, Cash Motivate Heart Patients to Exercise
June 19, 2018 - Nipah Virus (NiV) | CDC
June 19, 2018 - Genomics offers new treatment options for infants with range of soft tissue tumors
June 18, 2018 - Study shows how moderate consumption of alcohol can protect the heart
June 18, 2018 - Gene editing technology predicts heart disease risk
June 18, 2018 - Who Will and Who Won’t Get the Flu?
June 18, 2018 - Research shows effective responses to online feedback
June 18, 2018 - Scientists to focus on big data and genetics to identify risk factors for dementia
June 18, 2018 - Ultrasound-based technology for assessing overweight adolescents with liver disease
June 18, 2018 - Osteochondral knee defect treated using cell technology
June 18, 2018 - New clinical trial finds no evidence to support use of tamsulosin for kidney stones
June 18, 2018 - Study demonstrates increased levels of gum disease in people at risk of rheumatoid arthritis
June 18, 2018 - Ebola & Marburg | NIH: National Institute of Allergy and Infectious Diseases
June 18, 2018 - Brains, eyes, testes: off-limits for transplants?
June 18, 2018 - Drug used to treat myelofibrosis can awaken ‘dormant’ lymphomas in the bone marrow
June 18, 2018 - New study focuses on best, cost effective practices to bridge treatment gap for brain disorders
June 18, 2018 - New study highlights predictors that prevent from achieving remission in early RA
June 18, 2018 - Neuroscientists map feeling of cool touch to the brain’s insula in mouse model
June 18, 2018 - Study highlights potential use of blood biomarkers as diagnostic tool for sleep apnea
June 18, 2018 - Eating plant-based diet can reduce risk for heart problems in people with type 2 diabetes
June 18, 2018 - Lenabasum has acceptable safety and tolerability in diffuse cutaneous systemic sclerosis
June 18, 2018 - Study shows link between risky opioid prescriptions and increased odds of death
June 18, 2018 - Bone density scans could help determine likelihood of cardiovascular disease
June 18, 2018 - Mechanical thrombectomy appears to be important therapy for acute stroke in very old patients
June 18, 2018 - Novel compound as effective as FDA-approved antibiotics for treating deadly infections
June 18, 2018 - Ironwood Pharmaceuticals Announces FDA Orphan Drug Designation for Olinciguat for the Treatment of Sickle Cell Disease
June 18, 2018 - Surgical outcomes equivalent whether physician anesthesiologist assisted by nurse anesthetist or AA
June 18, 2018 - Studies provide insight into molecular changes prior to onset of arthritis
June 18, 2018 - Dyaco unveils specialist medical and rehabilitation equipment range in the UK
June 18, 2018 - Engineers develop algorithm to monitor joints of patients with arthritis
June 18, 2018 - Women with higher vitamin D blood levels have lower risk for breast cancer
June 18, 2018 - New studies help elucidate role of sleep in chronic pain
June 18, 2018 - Researchers link red meat sensitivity spread by ticks with heart disease
June 18, 2018 - Research explores role of autopsy in cardiovascular medicine
June 18, 2018 - Motif Bio Submits NDA for Iclaprim
June 18, 2018 - NIH-funded researchers identify target for chikungunya treatment
June 18, 2018 - Negative emotions are murkier, less distinct in adolescence
June 18, 2018 - Gut microbiome may be potential contributor to depression, anxiety in people with obesity
June 18, 2018 - Canakinumab reduces gout rate by more than half in atherosclerosis patients, study shows
June 18, 2018 - What Does the Future Hold?
June 18, 2018 - FDA Approves Keytruda (pembrolizumab) for Treatment of Refractory or Relapsed Primary Mediastinal Large B-Cell Lymphoma (PMBCL)
June 18, 2018 - School cliques don’t always click
June 18, 2018 - Three experts from The Tinnitus Clinic contribute to major review on pulsatile tinnitus
June 18, 2018 - Unwieldy health costs often stand between teachers and fatter paychecks
June 18, 2018 - Link between frailty and mortality remains unchanged despite lower death rates, study finds
June 18, 2018 - Sleep disorders appear to be first sign of serious neurological diseases
June 18, 2018 - Childhood, adult obesity raise risk of developing hip and knee osteoarthritis
June 18, 2018 - Study unravels ‘blood stem cell niche’ puzzle
June 18, 2018 - People with heart problems do not take enough exercise, shows study
June 18, 2018 - Strong Link Identified Between T2DM and Parkinson’s Disease
June 18, 2018 - Early childhood interventions show mixed results on child development
Taurine could boost effectiveness of existing multiple sclerosis therapies

Taurine could boost effectiveness of existing multiple sclerosis therapies

image_pdfDownload PDFimage_print

New research suggests that administering taurine, a molecule naturally produced by human cells, could boost the effectiveness of current multiple sclerosis (MS) therapies. Scientists at The Scripps Research Institute (TSRI) found that taurine helps spark a process called remyelination, which is crucial to repairing the nerve cells damaged in multiple sclerosis.

“Remission of MS symptoms is dependent on the process of remyelination, so using taurine in combination with an existing MS drug and a future remyelination-inducing treatment may help patients by improving overall efficacy,” says Luke Lairson, PhD, assistant professor of chemistry at TSRI and co-senior author of the study. “This could be something to add to an MS therapeutic regime.”

The discovery also highlights the potential for a technique called “metabolomic profiling,” which can identify useful endogenous metabolites the body already makes in small quantities, such as taurine, for new applications in drug therapies.

“Metabolomic profiling can offer unique insight into many different diseases, both mechanistically and therapeutically,” says study co-senior author Gary Siuzdak, PhD, senior director of TSRI’s Scripps Center for Metabolomics and professor of chemistry, molecular and computational biology.

The research was published recently in the journal Nature Chemical Biology.

Taurine helps drive cell maturation

Multiple sclerosis is an autoimmune disease that develops when the body begins attacking the protective myelin sheaths on nerve cells. Without healthy myelin sheaths, nerve cells cannot communicate properly, and patients experience symptoms such as numbness, difficulty walking, slurred speech and vision loss.

Although there is no cure for MS, some current drug therapies can reduce MS relapses by encouraging re-myelination. In a 2013 Nature study, Lairson and colleagues showed that the drug benztropine, approved for Parkinson’s disease, may also help MS patients by inducing cells called oligodendrocyte precursor cells to mature into myelin-producing oligodendrocytes and repair damaged nerves.

Lairson’s next step was to find molecules that could make remyelination-inducing drugs even more effective, so he teamed up with Siuzdak to test the potential of molecules called endogenous metabolites to influence oligodendrocyte precursor cells. Endogenous (meaning “originating from within”) metabolites are molecules naturally made by cells and include sugars, fatty acids and amino acids.

The new analysis and follow-up tests in cells showed that while the endogenous metabolite taurine cannot induce oligodendrocyte precursor cell maturation on its own, it can lend a helping hand when combined with the drugs benztropine or miconazole. The researchers described taurine as a “feedstock.”

“Combining taurine with drugs that induce differentiation significantly enhances the process,” says Lairson. “You get more myelin.”

Lairson says this discovery is exciting because taurine has already been shown to be safe at certain doses and is readily used by the brain. “We still need to do tests in rodent models, but this is a good starting point,” he said.

Advances at TSRI have big implications for medicine

With this study’s finding that administering a particular endogenous metabolite can influence a cell’s fate and function, researchers have a new path for developing novel therapies for many diseases.

Metabolomic profiling takes advantage of technical developments, led by Siuzdak at TSRI, which scientists can use to analyze metabolic perturbations in disease and then apply that information to decipher mechanistic details. Ultimately, researchers hope to identify active endogenous metabolites with potential to reverse pathology-related phenotypes.

Siuzdak is encouraged by the nearly 21,000 scientists who currently use his lab’s cloud-based XCMS/METLIN metabolomic profiling platform for these types of studies–and the interesting active roles metabolites are exhibiting.

“Unlike other omic technologies, the beauty of metabolomics and activity testing is that metabolites are readily commercially accessible, generally inexpensive, and can directly impact phenotype quickly,” says Siuzdak. “We are no longer passive observers but instead active participants.”

Source:

http://www.scripps.edu/news/press/2017/News%20-%20Press%20Release%202014.html

Tagged with:

About author

Related Articles