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Chloroquine Downregulation of Intestinal Autophagy Changed Intestinal Microbial Community Compositions and Metabolite Profiles in Piglets.

Our previous study demonstrated that moderate inhibition of intestinal autophagy was beneficial to alleviate early weaning stress in piglets … um and Porphyromonas, Bacteroides, unidentified_Lachnospiraceae, Akkermansia, Sharpea, Peptococcus, Pseudoalteromonas, Peptoclostridium and unidentified_Acidobacteria in the colon were improved in piglets fed the RAPA diet, whereas the relative levels of abundance of Turicibacter, Rickettsiella and Sarcina in the ileum and Roseburia and Kroppenstedtia in the colon …

Changes in seminal plasma microecological dynamics and the mechanistic impact of core metabolite hexadecanamide in asthenozoospermia patients.

Asthenozoospermia (AZS) is a prevalent contributor to male infertility, characterized by a substantial decline in sperm motility. In recent … the AZS group displayed an increased abundance of bacterial genera such as Uruburuella, Vibrio, and Pseudoalteromonas, with a negative correlation with core differential metabolite (hexadecanamide). In vitro and in vivo experiments validated that hexadecanamide significantly enhanced sperm motility. Using predictive metabolite-targeting gene analysis and single-cel …

Identification and Characterization of Infectious Pathogens Associated with Mass Mortalities of Pacific Oyster (Crassostrea gigas) Cultured in Northern China.

The Pacific oyster (Crassostrea gigas) aquaculture industry increased rapidly in China with the introduction and promotion of triploid oyste … he most frequently (9 out of 13) identified two dominant bacteria associated with mass mortalities. Pseudoalteromonas spp. was identified as the dominant bacteria in three mortality events that occurred during the cold season. Further bacteriological analysis was conducted on two representative isolates of V. natriegens and V. alginolyticus, designated as CgA1-1 an …

Microbial characterization of the nasal cavity in patients with allergic rhinitis and non-allergic rhinitis.

INTRODUCTION: Although recent studies have shown that the human microbiome is involved in the pathogenesis of allergic diseases, the impact … in AR microbiota. For AR, the model containing Parabacteroides goldstemii, Sutterella-SP-6FBBBBH3, Pseudoalteromonas luteoviolacea, Lachnospiraceae bacterium-615, and Bacteroides coprocola had the highest the area under the curve (AUC), which was 0.9733(95%CI:0.926-1.000) in the constructed random forest prediction model. The largest AUC for nAR is 0.984(95%CI:0.9 …

Engineering Pseudochelin Production in Myxococcus xanthus.

Myxobacteria utilize the catechol natural products myxochelin A and B in order to maintain their iron homeostasis. Recently, the production of these siderophores, along with a new myxochelin derivative named pseudochelin A, was reported for the marine bacterium Pseudoalteromonas piscicida S2040. The latter derivative features a characteristic imidazoline moiety, which was proposed to originate from an intramolecular condensation reaction of the β-aminoethyl amide group in myxochelin B. To identify the enzyme catalyzing this conversion, we compared the myxochelin regulons of two myxobacterial s…

Causality Verification for the Correlation between the Presence of Nonstarter Bacteria and Flavor Characteristics in Soft-Type Ripened Cheeses.

Flavor characteristics of ripened cheese are established by various bacteria, such as lactic acid bacteria, Actinobacteria, and Proteobacter … unds, such as acids, esters, ketones, and sulfur compounds, were detected in cheese inoculated with Pseudoalteromonas sp. TS-4-4 strain. These findings provide important insights into the role of nonstarter bacteria in the development of cheese flavor and into the effectiveness of the multiomics approach in screening for bacteria that can improve the quality of che …

Enrichment of electrotrophic microorganisms from contrasting shallow-sea hydrothermal environments in bioelectrochemical reactors.

INTRODUCTION: Hydrothermal vents are inhabited by electrotrophic microorganisms, which are capable of oxidizing extracellular compounds, suc … In Panarea reactors, higher growth was correlated with a few bacterial genera, mainly Bacillus and Pseudoalteromonas, including, for the former, at higher temperatures (55°C and 75°C). In reactors reproducing the Prony Bay hydrothermal conditions, known facultative methylotrophs, such as Sphingomonas and Methylobacterium, were dominant and appeared to consume form …

Mitigation of Memory Impairment with Fermented Fucoidan and λ-Carrageenan Supplementation through Modulating the Gut Microbiota and Their Metagenome Function in Hippocampal Amyloid-β Infused Rats.

Attenuating acetylcholinesterase and insulin/insulin-like growth factor-1 signaling in the hippocampus is associated with Alzheimer's diseas … myloid-β(Aβ). Fucoidan and λ-carrageenan were dissected into low-MW by Luteolibacter algae and Pseudoalteromonas carrageenovora. Rats receiving an Aβ(25-35) infusion in the CA1 region of the hippocampus were fed dextrin (AD-Con), 1% high-MW fucoidan (AD-F-H), 1% low-MW fucoidan (AD-F-L), 1% high-MW λ-carrageenan (AD-C-H), and 1% low-MW λ-carrageenan (AD-C …

[Phylogenetic diversity and cold-adaptive hydrolytic enzymes of culturable psychrophilic bacteria associated with sea ice from high latitude ocean, Artic].

The phylogenetic diversity of culturable psychrophilic bacteria associated with sea ice from high latitude sea (77 degrees 30'N - 81 degrees … eria (in the genera Colwellia, Marinobacter, Shewanella, Thalassomonas, Glaciecola, Marinomonas and Pseudoalteromonas) and Cytophaga-Flexibacter-Bacteroides (in the genera Flavobacterium and Psychroflexus). Nine of bacterial isolates (BSi20007, BSi20497, BSi20517, BSi20537, BSi20170, BSi20001, BSi20002, BSi20675 and BSi20101) quite likely represent novel species (1 …

Biomaterials from the sea: Future building blocks for biomedical applications.

Marine resources have tremendous potential for developing high-value biomaterials. The last decade has seen an increasing number of biomaterials that originate from marine organisms. This field is rapidly evolving. Marine biomaterials experience several periods of discovery and development ranging from coralline bone graft to polysaccharide-based biomaterials. The latter are represented by chitin and chitosan, marine-derived collagen, and composites of different organisms of marine origin. The diversity of marine natural products, their properties and applications are discussed thoroughly in t

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… sp Protease Peptide hydrolases [ 160 ] [ 161 ] Extracellular phospholipase C marine streptomycete Pseudoalteromonas sp Lipases Hydrolyze different oils [ 162 ] [ 163 ] Chitinase Chitosanase Vibrio fluvialis, Vibrio parahaemolyticus, Vibrio mimicus Vibrio alginolyticus Listonella anguillarum Aeromonas … Hydrolase Degrade chitin and chitosan [ [164] , [165] , [166] ] Alginate lyases Algae marine invertebrates Vibrio splendidus 12B01 Lyases Degrade alginate [ [167] , [168] , [169] ] Agarases Cytophaga Bacillus Vibrio Alteromonas Pseudoalteromonas Streptomyces Vibrio sp. …

Устранение неврологических расстройств путем борьбы с нейродегенеративными ассоциированными ферментами: естественные и синтетические молекулы.

Неврологические расстройства, включая нейродегенеративные и нейро-воспалительные заболевания, создают значительные проблемы в области здравоохранения и клинических проблем. Недавние исследования показали, что различные ферменты играют ключевую роль в наступлении и развитии этих расстройств. В этом обзоре изучается терапевтический потенциал адресации этих ферментов естественными и синтетическими молекулами. К таким заболеваниям, как болезнь Альцгеймера, болезнь Паркинсона и множественный склероз, причастны основные ферменты, включая ацетилхолинестеразу, оксидазу моноамина, бета-секретазу, тау к

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… A marine strain of Pseudoalteromonas produces strong α-d-galactosidase with varied applications and research interests [ 220 ]. The study demonstrates that Cryptophycins are cytotoxic peptides produced by a lichen cyanobacterial parasite comprising around 25 structurally similar compounds. …

Screening the Active Phytochemicals From Eclipta prostrata and Unraveling Their Molecular Insight Into Human Malignancies.

Current drugs against multiple human malignancies are limited, and developing new treatment strategies is improbable within a short time. So, considering the current situation, phytochemicals could be a viable option for developing chemotherapeutic agents for managing numerous types of malignancies. Therefore, we aimed to locate all phytochemicals of Eclipta prostrata and unravel their chemotherapeutic mechanisms and strategies individually. We defined 25 active compounds based on their anticancer activities after filtering through IMPPAT and literature search, and these compounds have chemoth

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