Results 31 to 40 of about 1,169,927 (232)

Microbial Functional Gene Diversity Predicts Groundwater Contamination and Ecosystem Functioning

mBio, 2018
Contamination from anthropogenic activities has significantly impacted Earth’s biosphere. However, knowledge about how environmental contamination affects the biodiversity of groundwater microbiomes and ecosystem functioning remains very limited.
Zhili He, Ping Zhang, Linwei Wu, Andrea M. Rocha, Qichao Tu, Zhou Shi, Bo Wu, Yujia Qin, Jianjun Wang, Qingyun Yan, Daniel Curtis, Daliang Ning, Joy D. Van Nostrand, Liyou Wu, Yunfeng Yang, Dwayne A. Elias, David B. Watson, Michael W. W. Adams, Matthew W. Fields, Eric J. Alm, Terry C. Hazen, Paul D. Adams, Adam P. Arkin, Jizhong Zhou   +23 more
doaj   +1 more source

Impact of the contamination time by Escherichia coli on biofilm formation in surgical instruments

Revista Brasileira de Enfermagem, 2021
Objectives: to evaluate the microbial load and adherence of Escherichia coli in different areas of the surgical instrument surface exposed to experimental contamination over time. Methods: experimental study in which fragments of crile forceps (serrated,
Síntia de Souza Evangelista, Simone Gonçalves dos Santos, Adriana Cristina de Oliveira   +2 more
doaj   +2 more sources

Aquatic microbial diversity associated with faecal pollution of Norwegian waterbodies characterized by 16S rRNA gene amplicon deep sequencing

Microbial Biotechnology, 2019
Summary Faecal contamination is one of the major factors affecting biological water quality. In this study, we investigated microbial taxonomic diversity of faecally polluted lotic ecosystems in Norway.
Lisa Paruch, Adam M. Paruch, Hans Geir Eiken, Roald Sørheim   +3 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Status of microbial contamination in edible ice in Dak Lak province in 2022-2023

Tạp chí Kiểm nghiệm và An toàn thực phẩm
A study conducted in 2022 and 2023 assessed the microbial contamination levels in edible ice. The findings indicated that 67.6% of samples exceeded permissible contamination limits, with 63.0% of samples contaminated in 2022 and 70.7% in 2023.
Tuong Quoc Trieu, Vien Chinh Chien, Nguyen Vu Thuan, Ta Duy Hung, Do Thi Thu Huong   +4 more
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

Exploring the influence of lactoferrin on wound healing and related signaling pathways: a systematic review

FEBS Open Bio, EarlyView.
Lactoferrin promotes wound healing by activating MAPK, PI3K/Akt, and extracellular matrix pathways, enhancing fibroblast remodeling, proliferation, and re‐epithelialization. These mechanisms highlight its therapeutic potential in inflammation control, tissue repair, and remodeling.
Morgana Lüdtke Azevedo, Kátia Cristiane Hall, Matheus dos Santos Fernandez, Geovanna Peter Corrêa, Rafael Guerra Lund   +4 more
wiley   +1 more source

Avidin is evolutionarily conserved in fish but dispensable for development and resistance against Streptococcus agalactiae in zebrafish

FEBS Open Bio, EarlyView.
The presence of biotin‐binding avidin proteins in fish and their biological significance are poorly characterized. We cataloged fish avidins and demonstrate that they are widely present and evolutionarily conserved. We created avd knockout zebrafish and show that zebavidin is dispensable for development and that resistance of avd knockout embryos in ...
Anni K. Saralahti, Markus J. T. Ojanen, Mataleena Parikka, Otto Kauko, Mika Rämet, Vesa P. Hytönen   +5 more
wiley   +1 more source

Comparison of keypads and touch-screen mobile phones/devices as potential risk for microbial contamination

Journal of Infection in Developing Countries, 2015
Introduction: Touch-screen mobile phones/devices (TMPs/Ds) are increasingly used in hospitals. They may act as a mobile reservoir for microbial pathogens.
Mehmet Koroglu, Selami Gunal, Fatma Yildiz, Mehtap Savas, Ali Ozer, Mustafa Altindis   +5 more
doaj   +1 more source

Discrepancies Between Micro Versus Macroscale Viscoelastic Properties in a Microplastic‐Tissue Composite Model

Advanced Engineering Materials, EarlyView.
This study explores the discrepancies between bulk mechanics and spatial mapping in a tissue‐mimetic hydrogel model. Microplastic particles create localized stiff mechanical microenvironments that are detectable by cellular‐scale nanoindentation but leave bulk properties unchanged as measured by rheology.
Ahron T. Verschleisser, Baptiste Le Roi, Omri Leshem, Joshua M. Grolman   +3 more
wiley   +1 more source