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Regular Consumption of Black Tea Kombucha Modulates the Gut Microbiota in Individuals with and Without Obesity.
J Nutr
December 2024
Bioactive Compounds and Carbohydrates (BIOCARB) Research Group - Department of Food Science and Technology, Universidade Federal de Viçosa, Avenida Peter Henry Rolfs, s/n, Viçosa, MG, 36570-900, Brazil. Electronic address:
Background: Kombucha, a fermented beverage obtained from a Symbiotic Culture of Bacteria and Yeast (SCOBY), has shown potential in modulating gut microbiota, although no clinical trials have been done.
Objective: We aimed to evaluate the effects of regular black tea kombucha consumption on intestinal health in individuals with and without obesity.
Methods: A pre-post clinical intervention study was conducted lasting eight weeks.
Biomimetic fluorescence-enhanced platform based on photonic crystals and DNAzyme walker for visualization and quantification of miRNA-21.
Talanta
December 2024
Institute of Biomedical Precision Testing and Instrumentation, College of Artificial Intelligence, Taiyuan University of Technology, Taiyuan, Shanxi, 030600, PR China.
Developing a fluorescence sensing platform for point-of-care detection of low abundance biomarkers is highly valuable for early diagnosis of disease. Herein, a biomimetic fluorescence-enhanced platform based on photonic crystals and DNAzyme walker was constructed and further applied to visualize and quantify the miRNA-21 in biological samples. The DNAzyme walker was orthogonally activated by the target miRNA-21, which enabled the unlocking of the DNAzyme walker strand and the subsequently repeated substrate cleavage, thus generating enhanced fluorescence signals.
View Article and Find Full Text PDFIn search of pathogenic Leptospira species in Myotis and other vesper bats, Russia.
Acta Trop
December 2024
Central Research Institute of Epidemiology, Moscow, Russia. Electronic address:
Various bat species worldwide have been identified as Leptospira carriers, especially in tropical regions. In this study, we investigated the infection of Vespertilionidae bats by pathogenic Leptospira in north-west Russia. Out of 264 bats from 13 species, the urine of 24 specimens tested positive according to a polymerase chain reaction test.
View Article and Find Full Text PDFUsing Agaricus bisporus crude extract in distance based 3D microfluidic paper-based analytical device and spectrophotometric analytical procedures for thiols determination.
Talanta
December 2024
Analytical Chemistry Division, Chemistry Department, Lomonosov Moscow State University, 119234, Moscow, Russia. Electronic address:
Novel and simple spectrophotometric and distance based procedures for thiols (L-cysteine, N-acetylcysteine, and glutathione) determination in biological fluids and pharmaceuticals have been proposed based on their inhibitory action on the oxidation of catechol in the presence of Agaricus bisporus crude extract (ABE). The influence of L-glycine, L-alanine, L-proline, L-methionine, L-cystine, ascorbic acid, uric acid, and bilirubin on the thiol determination has been investigated. Uric acid, bilirubin, L-cystine (oxidized thiol), and L-amino acids do not interfere with the determination.
View Article and Find Full Text PDFExploring biomarkers of regular wine consumption in human urine: Targeted and untargeted metabolomics approaches.
Food Chem
December 2024
Instituto de Ciencias de la Vid y del Vino-ICVV (Consejo Superior de Investigaciones Científicas-CSIC, Universidad de La Rioja, Gobierno de La Rioja), Finca La Grajera, Ctra. de Burgos Km. 6 (LO-20, salida 13), Logroño E-26007, La Rioja, Spain. Electronic address:
The epidemiological assessment of wine consumption usually has been obtained using self-reporting questionnaires. In this study, two metabolomic approaches, targeted and untargeted, were applied to 24-h urine samples from a cohort of La Rioja (Spain) (aged 52-78), comparing moderate and daily wine consumers (20 males and 13 females) without diet intervention, versus non-consumers (8 males and 35 females). Results showed that the non-targeted metabolomics approach has allowed for the annotation of sixteen compounds in 24-h urine samples from regular wine-consumers that were not detected in the urine of non-wine consumers.
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