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A study of the correlation between stroke and gut microbiota over the last 20years: a bibliometric analysis
ConclusionFindings suggest that in the next 10 years, the number of publications produced annually may increase significantly. Future research trends tend to concentrate on the mechanisms of stroke and gut microbiota, with the inflammation and immunological mechanisms, TMAO, and fecal transplantation as hotspots. And the relationship between these mechanisms and a particular cardiovascular illness may also be a future research trend.
Source: Frontiers in Microbiology - June 7, 2023 Category: Microbiology Source Type: research

Comprehensive evaluation of the mechanism of Gastrodia elata Blume in ameliorating cerebral ischemia –reperfusion injury based on integrating fecal metabonomics and 16S rDNA sequencing
Gastrodia elata Blume was used to treat stroke and headaches caused by “Feng” for thousands of years. The present study has shown a significant effect of G. elata Blume in improving cerebral ischemia–reperfusion injury (CIRI). However, the mechanism of G. elata Blume in improving CIRI by regulating the intestinal flora has not been reported until now. This research aimed to comprehensively evaluate the mechanism of G. elata Blume in CIRI based on fecal metabolomics and 16S rDNA sequencing. The rat model with CIRI was created based on the Zea Longa method. Enzyme-linked immunosorbent assay (ELISA) was used to monitor ...
Source: Frontiers in cellular and infection microbiology - October 27, 2022 Category: Microbiology Source Type: research

F1FO ATP synthase molecular motor mechanisms
The F-ATP synthase, consisting of F1 and FO motors connected by a central rotor and the stators, is the enzyme responsible for synthesizing the majority of ATP in all organisms. The F1 (αβ)3 ring stator contains three catalytic sites. Single-molecule F1 rotation studies revealed that ATP hydrolysis at each catalytic site (0°) precedes a power-stroke that rotates subunit-γ 120° with angular velocities that vary with rotational position. Catalytic site conformations vary relative to subunit-γ position (βE, empty; βD, ADP bound; βT, ATP-bound). During a power stroke, βE binds ATP (0°–60°) and βD releases ADP (6...
Source: Frontiers in Microbiology - August 23, 2022 Category: Microbiology Source Type: research

A Comparison of Three Different Bioinformatics Analyses of the 16S –23S rRNA Encoding Region for Bacterial Identification
Conclusion The higher resolution at the species level identification provided by 16S–23S rRNA encoding region NGS makes its use in routine diagnostic microbiology potentially attractive. Particularly, data analysis is one of the most important steps of a diagnostic workflow, which requires an optimal pipeline for the interpretation of the sequencing data in a short time. This study demonstrates that de novo assembly and subsequent BLASTN analysis using an in-house developed database compared to OTU clustering and mapping approaches is the most accurate and fastest approach for identification of bacterial pathogens....
Source: Frontiers in Microbiology - April 15, 2019 Category: Microbiology Source Type: research

Isolation of Antimicrobial Compounds From Cnestis ferruginea Vahl ex. DC (Connaraceae) Leaves Through Bioassay-Guided Fractionation
Conclusion In conclusion, aqueous extracts of C. ferruginea leaves showed antimicrobial activity due to the presence of hydroquinone and caffeic acid methyl ester. This supports its traditional use for infections and confirmed that the active molecules are water-soluble. Author Contributions KK, SP, LVP, and WL conceived and designed the experiments. SP, KK, M-RY, and J-GL performed the experiments. SP, LVP, WL, M-RY, J-GL, and Z-HJ analyzed the data. WL and Z-HJ contributed reagents, materials, and analysis tools. KK, SP, WL, M-RY, Z-HJ, and LVP contributed to the writing of the manuscript. All authors contributed to m...
Source: Frontiers in Microbiology - April 10, 2019 Category: Microbiology Source Type: research

Guillain-Barr é syndrome following varicella-zoster virus infection
We describe the frequency, clinical features, and electrophysiological and immunological phenotypes of Guillain-Barr é Syndrome (GBS) patients treated at a single institution in Bangladesh who had preceding chicken pox (primary Varicella-zoster virus [VZV] infection) within 4 weeks of GBS onset. A literature review of GBS cases preceding VZV infection is also provided. Diagnosis of GBS was based on the National Institute of Neurological Disorders and Stroke criteria for GBS. Serum anti-VZV IgM and IgG antibodies were quantified by indirect chemiluminescence immunoassay (CLIA); anti-Campylobacter jejuni IgG, IgM, and IgA ...
Source: European Journal of Clinical Microbiology and Infectious Diseases - February 6, 2018 Category: Microbiology Source Type: research