Results 121 to 130 of about 410,225 (302)

Polyphyly in 16S rRNA-based LVTree Versus Monophyly in Whole-genome-based CVTree

open access: yesGenomics, Proteomics & Bioinformatics, 2018
We report an important but long-overlooked manifestation of low-resolution power of 16S rRNA sequence analysis at the species level, namely, in 16S rRNA-based phylogenetic trees polyphyletic placements of closely-related species are abundant compared to ...
Guanghong Zuo, Ji Qi, Bailin Hao
doaj   +1 more source

PCR detection and 16S rRNA sequence-based phylogeny of a novel Propionibacterium acidipropionici applicable for enhanced fermentation of high moisture corn [PDF]

open access: yes, 2004
AIMS The aims of this study were to develop a sensitive and more rapid detection of Propionibacterium acidipropionici DH42 in silage and rumen fluid samples, and to explore its 16S rRNA sequence-based phylogeny.
Yokoyama, M T   +3 more
core   +1 more source

Probiotic‐Derived Vesicles Rectally Delivered via Thermo‐Gelling Copolymer Promote Mucosal Healing and Reduce Inflammation in Ulcerative Colitis

open access: yesAdvanced Science, EarlyView.
A thermo‐responsive rectal delivery platform integrating probiotic‐derived extracellular vesicles within a hyaluronic acid‐based copolymer enables localized and sustained therapy for ulcerative colitis. The formulation effectively suppresses inflammation, promotes macrophage polarization toward a regenerative phenotype, restores epithelial barrier ...
Ayushi Mairal   +5 more
wiley   +1 more source

Charakterisierung eines Protein:RNA-Komplexes : die Funktion von ribosomal binding factor A [PDF]

open access: yes, 2007
In this thesis the three dimensional solution strucutre of the RbfA protein from Thermotoga maritima was solved using multidimensional heteronuclear NMR spectroscopy. The RbfA protein binds to the helix I region of the 16S rRNA. To gain insights into the
Grimm, Steffen Kaspar
core  

PEAR1 Promotes Glucose Metabolism Reprogramming in Sepsis‐Associated Acute Lung Injury via AARS1‐Mediated HIF‐1α Lactylation

open access: yesAdvanced Science, EarlyView.
This study revealed that a PEAR1/HIF‐1α/ glycolysis/lactate/H3K18la positive feedback loop in PMVECs that drives the development of S‐ALI. Mechanistically, PEAR1 mediates the binding of HIF‐1α to AARS1, leading to the lactylation of HIF‐1α, the primary lactylation site of which is K172.
Shuai Li   +15 more
wiley   +1 more source

Hollow Cu2O Nanozymes Enhance Probiotic Therapy for Colitis via Redox Homeostasis and TXNIP/NLRP3 Inflammasome Inhibition

open access: yesAdvanced Science, EarlyView.
Hollow cuprous oxide (H‐Cu2O) nanozymes feature enlarged catalytic surfaces for superior reactive oxygen species (ROS) scavenging. By efficiently neutralizing mucosal ROS, H‐Cu2O directly suppresses the TXNIP/NLRP3 inflammasome axis and restores intestinal epithelial barrier integrity.
Guangzhao Wang   +7 more
wiley   +1 more source

Disrupting Helicobacter pylori Iron Homeostasis With Bismuth Nanodrug‐Mediated Nutritional Trap for Targeted Gastric Infection Therapy

open access: yesAdvanced Science, EarlyView.
A “nutritional trap” strategy centered on disrupting bacterial iron homeostasis is proposed. The synthesized Bi‐TP@FU (TBF) can target Helicobacter pylori, interfere with the bacterial iron uptake and utilization processes to disrupt its iron homeostasis, induce bacterial death, and meanwhile preserve the balance of the intestinal flora.
Tianye Fang   +13 more
wiley   +1 more source

Bakteri ribosoomide uurimus keemilise modifitseerimise meetoditega [PDF]

open access: yes, 2010
Väitekirja elektrooniline versioon ei sisalda publikatsioone.Ribosoom on suur makromolekulaarne kompleks, mis kodeerib päriliku informatsiooni valgulisse olemusse.
Pulk, Arto
core  

QRICH1 Disrupts Endoplasmic Reticulum Homeostasis and Amplifies NF‐κB Signaling in Periodontal Ligament Stem Cells to Exacerbate Diabetic Periodontitis

open access: yesAdvanced Science, EarlyView.
QRICH1 has been established as a key factor contributing to impaired osteogenic potential and accelerated apoptosis of PDLSCs in diabetic periodontitis. QRICH1 not only significantly enhances UPR‐associated apoptotic signaling but also amplifies NF‐κB‐mediated inflammatory responses. Its inhibition restores osteogenic capacity and reduces alveolar bone
Han Li   +9 more
wiley   +1 more source

Gut Microbial Release of Ferulic Acid From Germinated Quinoa Alleviates Obesity‐Associated Cognitive Impairment by Activating Hippocampal Mitophagy Associated with PINK1/Parkin Pathway

open access: yesAdvanced Science, EarlyView.
Liberation of ferulic acid by gut microbial feruloyl esterase mediates cognitive enhancement of germinated quinoa (GQF) on obese mice. Ferulic acid enriched in GQF is released by gut microbes Roseburia hominis and R. intestinalis and subsequently mediates the neuroprotective effects of GQF on obesity‐induced cognitive decline by activating hippocampal ...
Yongli Lan   +11 more
wiley   +1 more source

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