Results 71 to 80 of about 72,091 (178)

The Keystone‐Pathogen Hypothesis Updated: The Role of Porphyromonas gingivalis in Periodontitis

Journal of Periodontal Research, EarlyView.
Porphyromonas gingivalis orchestrates a coordinated manipulation of immune and inflammatory responses in periodontal tissues which leads to the generation of a dysbiotic, subgingival biofilm community, and progression of periodontitis. The type 9 secretion system, lipid A modification, and the formation of outer membrane vesicles are important ...
Mike A. Curtis, James A. Garnett, Richard P. Darveau   +2 more
wiley   +1 more source

Detection of nitrite by flow injection analysis using a novel paired emitter-detector diode (PEDD) as a photometric detector [PDF]

, 2007
An inexpensive flow injection analysis system for determining low concentration levels of nitrite employing the Griess reagent spectrophotometric method is reported.
O'Toole, Martina, O\u27Toole, Martina, Shepherd, Roderick, Lau, King-Tong, Diamond, Dermot, Dermot Diamond, Roderick Shepherd, King-Tong Lau, Martina O'Toole   +8 more
core   +2 more sources

Oral Health, Periodontitis, and Respiratory Diseases: Biological Pathways

Journal of Periodontal Research, EarlyView.
This narrative review aims to provide a comprehensive update on the potential mechanisms by which poor oral health and periodontitis impact lung health, focusing on pneumonia, COPD, and asthma. ABSTRACT Poor oral hygiene and periodontitis influence lung diseases such as pneumonia, chronic obstructive pulmonary disease (COPD), COVID‐19, and asthma.
Raluca P. Vacaru, Andreea C. Didilescu, Frank A. Scannapieco   +2 more
wiley   +1 more source

Nitrogen Starvation Acclimation in Synechococcus elongatus: Redox-Control and the Role of Nitrate Reduction as an Electron Sink

Life, 2015
Nitrogen starvation acclimation in non-diazotrophic cyanobacteria is characterized by a process termed chlorosis, where the light harvesting pigments are degraded and the cells gradually tune down photosynthetic and metabolic activities.
Alexander Klotz, Edgar Reinhold, Sofía Doello, Karl Forchhammer   +3 more
doaj   +1 more source

Periodontal Salutogenesis: Why Are Some People Resistant to Oral Microbial Dysbiosis and Destructive Inflammation?

Journal of Periodontal Research, EarlyView.
Emerging evidence suggests that periodontal health is not simply the absence of disease, but the result of a dynamic interaction between biological resilience, healthy lifestyles, adaptive coping mechanisms, and supportive environments. This results in a strong sense of coherence, which is not only a psychological state but also a biological state ...
Bruno G. Loos, Magda Feres, William V. Giannobile, Hatice Hasturk, Egija Zaura   +4 more
wiley   +1 more source

Characterization of the periplasmic redox network that sustains the versatile anaerobic metabolism of Shewanella oneidensis MR-1

Frontiers in Microbiology, 2015
The versatile anaerobic metabolism of the Gram-negative bacterium Shewanella oneidensis MR-1 (SOMR-1) relies on a multitude of redox proteins found in its periplasm.
Mónica N. Alves, Sónia E. Neto, Alexandra S. Alves, Afonso eCarrêlo, Isabel ePacheco, Bruno M. Fonseca, Catarina M. Paquete, Cláudio M. Soares, Ricardo O Louro   +8 more
doaj   +1 more source

Ecological and genomic variation in ectomycorrhizal fungal exploration types

New Phytologist, EarlyView.
Summary Ectomycorrhizal fungi (EMF) produce mycelia with variable extension and complexity, which can be classified according to soil ‘exploration types’ (ETs). ETs have received attention as one of the few mycorrhizal trait frameworks, but without an empirical classification of ET functional diversity and environmental preferences, understanding and ...
Thomas M. Mansfield, Artin Zarsav, Filipa Cox, Laura M. Suz, Martin I. Bidartondo, Sietse van der Linde, Nadia Barsoum, Colin Averill, Alan Kuo, Leho Tedersoo, Pasi Rautio, Arthur Gessler, Bruno De Vos, Luc Croisé, Henning Meesenburg, Markus Wagner, Frank Jacob, Paweł Lech, Anna Kowalska, Martin Greve, Genoveva Popova, Beat Frey, Marcus Schaub, Marco Ferretti, Peter Waldner, Vicent Calatayud, Roberto Canullo, Giancarlo Papitto, Aleksander Marinšek, Lars Vesterdal, Morten Ingerslev, Helge Meissner, Volkmar Timmermann, Nadine Eickenscheidt, Andreas Schmitz, Francis M. Martin, Joseph Spatafora, Peter G. Kennedy, Annegret Kohler, Jonathan M. Plett, Ian C. Anderson, Sara Branco, Igor V. Grigoriev, Chris J. Pires, Sarah A. Unruh, Lawrence W. Zettler, Otto Miettinen, Ilya Viner, Tom W. May, Teresa Lebel, David E. A. Catcheside, Pamela S. Catcheside, Helen P. Vonow, Leigh A. Burgoyne, Julia Haska, Mark A. Anthony   +55 more
wiley   +1 more source

Siroheme Is Essential for Assimilation of Nitrate and Sulfate as Well as Detoxification of Nitric Oxide but Dispensable for Murine Virulence of Aspergillus fumigatus

Frontiers in Microbiology, 2018
The saprophytic mold Aspergillus fumigatus is the most common airborne fungal pathogen causing severe invasive fungal infections in immunocompromised patients.
Anna-Maria Dietl, Ulrike Binder, Yana Shadkchan, Nir Osherov, Hubertus Haas   +4 more
doaj   +1 more source

Insights into plant‐part‐specific N2O production in roots and shoots of chicory (Cichorium intybus) using stable isotope labelling

New Phytologist, EarlyView.
Conceptual scheme of the nitrous oxide (N2O) production, consumption, and transport processes across the soil–plant–atmosphere continuum. Summary Nitrous oxide (N2O) contributes substantially to climate change and stratospheric ozone degradation, yet large uncertainties in its global budget point to overlooked sources.
Moritz Schroll, Maurice Maas, Steffen Greiner, Thomas Klintzsch, Frank Keppler   +4 more
wiley   +1 more source

SERR Spectroelectrochemical Study of Cytochrome cd1 Nitrite Reductase Co-Immobilized with Physiological Redox Partner Cytochrome c552 on Biocompatible Metal Electrodes.

PLoS ONE, 2015
Cytochrome cd1 nitrite reductases (cd1NiRs) catalyze the one-electron reduction of nitrite to nitric oxide. Due to their catalytic reaction, cd1NiRs are regarded as promising components for biosensing, bioremediation and biotechnological applications ...
Célia M Silveira, Pedro O Quintas, Isabel Moura, José J G Moura, Peter Hildebrandt, M Gabriela Almeida, Smilja Todorovic   +6 more
doaj   +1 more source