hydroxylamine/atrophy

Age-related macular degeneration (AMD) is the leading cause of severe visual impairment in the elderly in developed countries. AMD patients have elevated levels of iron within the retinal pigment epithelia (RPE), which may lead to oxidative damage to mitochondria, disruption of retinal metabolism,

Bacterial aerobic ammonium oxidation and anaerobic ammonium oxidation (anammox) are important processes in the global nitrogen cycle. Key enzymes in both processes are the octahaem cytochrome c (OCC) proteins, hydroxylamine oxidoreductase (HAO) of aerobic ammonium-oxidizing bacteria (AOB), which

Nitroxide small molecule agents are in development as preventative or therapeutic pharmaceutical drugs for age-related macular degeneration (AMD) and cardiovascular disease, which are two major diseases of aging. These aging diseases are associated with patient genetics, smoking, diet, oxidative

This study investigated the nitritation of domestic wastewater through the short-term addition of hydroxylamine (NH₂OH). Sequencing batch reactor (SBR) was used and the NH₂OH solution with an initial concentration of 5.0 mg/L was injected at each cycle. With NH₂OH

OBJECTIVE To investigate the safety and preliminary efficacy of OT-551, a disubstituted hydroxylamine with antioxidant properties, for the treatment of geographic atrophy (GA), the advanced atrophic form of age-related macular degeneration (AMD). METHODS The study was a single-center, open-label

Degenerate oligonucleotide primers were made to peptide sequences from hydroxylamine oxidoreductase (HAO) from Nitrosomonas europaea. The primers were used singly in PCR reactions to amplify portions of the gene for HAO from genomic DNA. Southern hybridizations using fragments amplified with each

A method has been elaborated by which degenerating axons can be selectively impregnated with silver. Based on reconsideration of the physicochemical mechanisms of the degeneration methods it takes advantage of physical developers over the chemical ones. The staining procedure is applied to frozen

The cDNA encoding sea bass (Dicentrarchus labrax) prolactin (sbPRL) was obtained by reverse transcription-polymerase chain reaction (RT/PCR) from pituitary RNA with degenerate primers designed on the basis of the cDNAs of the two PRLs (tPRL188 and tPRL177) from the tilapia, Oreochromis niloticus.

P460 cytochromes catalyze the oxidation of hydroxylamine to nitrite. They have been isolated from the ammonia-oxidizing bacterium Nitrosomonas europaea (R. H. Erickson and A. B. Hooper, Biochim. Biophys. Acta 275:231-244, 1972) and the methane-oxidizing bacterium Methylococcus capsulatus Bath (J. A.

An initial transient hyperglycemia was seen in mice injected with asparagine, fluoroacetate, hydroxylamine, or malonate plus methionine, whereas an initial triphasic blood glucose response and a transient "secondary" hyperglycemia were exhibited in those injected with hydroxylamine plus arsenite,

The release of the inhibitory neurotransmitter GABA is generally enhanced under potentially cell-damaging conditions. The properties and regulation of preloaded [3H]GABA release from mouse hippocampal slices were now studied in free radical-containing medium in a superfusion system. Free radical

This work studied the feasibility of using a solid phase microextraction (SPME) fiber for sampling and analysis of gaseous formaldehyde as well as particulate-bound formaldehyde from burning Chinese incense. The SPME fiber with PDMS/DVB coating were partially coated with

2,5-Hexanedione, the main metabolite of n-hexane, can be responsible for axonal degeneration symptoms via formation of pyrrol-adducts with several amino acids. In order to make it amenable to gas chromatographic analysis, a protocol including microwave assisted derivatization is presented and

Corynebacterium matruchotii is a microbial inhabitant of the oral cavity associated with dental calculus formation. It produces membrane-associated proteolipid capable of inducing hydroxyapatite formation in vitro. This proteolipid was purified from chloroform:methanol extracts by chromatography on

In this study, acclimation of freshwater nitritation-anammox sludge to remove nitrogen in high saline and hypersaline wastewater was evaluated, during which the microbes activity and microbial community revolution were revealed to understand the fate of a nitritation-anammox process (SNAP) in