Results 101 to 110 of about 6,046 (231)

Systemic medications associate with surgically treated cataract among adults over 50 years in Finland

Acta Ophthalmologica, EarlyView.
Abstract Purpose To identify associations between systemic drugs and cataract surgery in Finland. Methods A historic cohort study based on administrative data. Endpoint event was cataract surgery. Use of drugs in question was based on redeemed prescriptions and consisted of 156 drugs.
Antti Riikonen, Jari Haukka, Tuomas Lilius, Sirpa Loukovaara   +3 more
wiley   +1 more source

Redox Reactivity of Nonsymbiotic Phytoglobins towards Nitrite

Molecules
Nonsymbiotic phytoglobins (nsHbs) are a diverse superfamily of hemoproteins grouped into three different classes (1, 2, and 3) based on their sequences.
Cezara Zagrean-Tuza, Galaba Pato, Grigore Damian, Radu Silaghi-Dumitrescu, Augustin C. Mot   +4 more
doaj   +1 more source

Thaumarchaeal ammonium oxidation and evidence for a nitrogen cycle in a subsurface radioactive thermal spring in the Austrian Central Alps

Frontiers in Microbiology, 2014
Previous studies had suggested the presence of ammonium oxidizing Thaumarchaeota as well as nitrite oxidizing Bacteria in the subsurface spring called Franz Josef Quelle (FJQ), a slightly radioactive thermal mineral spring with a temperature of 43.6 ...
Friedrich Wolfgang Gerbl, Gerhard Wolfgang Weidler, Wolfgang eWanek, Angelika eErhardt, Helga eStan-Lotter   +4 more
doaj   +1 more source

Methaemoglobinaemia: From pathophysiology to contemporary clinical management

British Journal of Haematology, EarlyView.
Summary Methaemoglobin (MetHb) is an oxidised form of haemoglobin (Hb) unable to bind oxygen. Raised levels of MetHb reduce the blood's oxygen‐carrying capacity, causing potentially severe hypoxaemia and possible death. The condition arises from three main pathologies: mutations in globin genes causing Haemoglobin‐M, inherited deficiency of the enzyme ...
Alexander J. Twine, David C. Rees
wiley   +1 more source

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

Causes and control of low F/M bulking in long sludge age nutrient removal activated sludge systems

, 1993
Includes bibliography.A problem plaguing the greater proportion of nutrient removal activated sludge systems treating municipal sewage, is the prolific growth of :filamentous organisms (bulking), which inhibits the rate of sludge settling in the ...
Casey, Timothy Gervase
core  

Effect of a Tridentate Ligand on the Structure, Electronic Structure, and Reactivity of the Copper(I) Nitrite Complex: Role of the Conserved Three-Histidine Ligand Environment of the Type-2 Copper Site in Copper-Containing Nitrite Reductases

, 2016
It is postulated that the copper(I) nitrite complex is a key reaction intermediate of copper containing nitrite reductases (Cu-NiRs), which catalyze the reduction of nitrite to nitric oxide (NO) gas in bacterial denitrification.
Hiroshi Fujii (289510), Masato Kujime (2439166), Masaaki Tomura (2347789), Chiemi Izumi (2439163), Masahiko Hada (1855906)   +4 more
core   +3 more sources

Comparative Genomics of Candidatus Methylomirabilis Species and Description of Ca. Methylomirabilis Lanthanidiphila

Frontiers in Microbiology, 2018
Methane is a potent greenhouse gas, which can be converted by microorganism at the expense of oxygen, nitrate, nitrite, metal-oxides or sulfate. The bacterium ‘Candidatus Methylomirabilis oxyfera,’ a member of the NC10 phylum, is capable of nitrite ...
Wouter Versantvoort, Simon Guerrero-Cruz, Daan R. Speth, Jeroen Frank, Jeroen Frank, Lavinia Gambelli, Geert Cremers, Theo van Alen, Mike S. M. Jetten, Mike S. M. Jetten, Mike S. M. Jetten, Boran Kartal, Huub J. M. Op den Camp, Joachim Reimann   +13 more
doaj   +1 more source

Role of distal arginine residue in the mechanism of heme nitrite reductases. [PDF]

Chem Sci, 2023
Sarkar A, Bhakta S, Chattopadhyay S, Dey A.   +3 more
europepmc   +1 more source

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