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Biology subjects

Nova, E.

Publications and source records attributed to Nova, E..

2 recordsLinked to original sources

Alkalinized Filtered Water Induces Changes in the Gut Microbiome in Inflammatory Bowel Disease.

ObjectiveThis study evaluated the effects of filtered, alkalinized water on inflammation and intestinal dysbiosis in individuals with inflammatory bowel disease (IBD). MethodsWe conducted a three-month, two-arm, randomized intervention study involving 46 patients with IBD in remission. Participants were divided into two groups: one consumed filtered water from an active filtering device, and the control group consumed water from a mock device. Blood and stool samples were collected before and after the intervention. We assessed antioxidant capacity and circulating cytokine levels from plasma. Gene expression levels of inflammatory mediators were determined using mRNA from peripheral blood mononuclear cells (PBMCs). The microbial composition of fecal samples was characterized by qPCR analysis using primers targeting 16S rRNA genes. ResultsConsumption of alkalinized filtered water significantly reduced IL1B gene expression in PBMCs. Furthermore, subjects drinking alkalinized filtered water exhibited a consistent, albeit not statistically significant, decrease in circulating IL-1{beta} and significantly lower levels of IL-4 than controls. Microbiome analysis revealed that the levels of the Bacteroides fragilis Group were significantly lower in subjects consuming tap water than in those consuming filtered water. ConclusionThese changes suggest that consuming alkalinized water for three months leads to an improved inflammatory status compared with consuming tap water.

pathology↗

Alpha-synuclein amyloids catalyze the degradation of ATP and other nucleotides

Intracellular accumulation of alpha-synuclein amyloids is a main pathological hallmark in a subgroup of human neurodegenerative diseases called synucleinopathies. Cell death of energy-deprived dopaminergic neurons causes decreased dopamine levels, which underly many of the neurological symptoms in the most prevalent synucleinopathy, Parkinsons disease. Amyloid-mediated toxicity can proceed via gain-of-function through diverse pathways. In this work, we report that alpha-synuclein amyloids can degrade adenosine triphosphate in a catalytic fashion, producing adenosine diphosphate and adenosine monophosphate. Upon prolonged incubation, all adenosine triphosphate is irreversibly consumed. Furthermore, these amyloids can also degrade all other ribonucleotides with different efficiencies, including guanosine, cytidine, and uridine triphosphates. Our findings uncover a previously unknown gain-of-function for alpha-synuclein amyloids, which may have far reaching implications for ATP and nucleotide metabolism during neurodegeneration in Parkinsons disease and other synucleinopathies.

biochemistry↗