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Hydrogen bonds are related to the thermal stability of 16S rRNA
Optimal Growth Temperature 16S Ribosomal RNA G + C Content Hydrogen Bonds Base Pairs Nucleotide Compositions
2013/1/28
The number of base pairs in the 16S rRNA secondary structures of 51 bacterial sequences was counted, and the number of hydrogen bonds was estimated. The number of hydrogen bonds was highly correlated ...
A novel visual test for hydrogen sulfide on the tongue dorsum
Halitosis Tongue dorsum VSC Hydrogen Sulfide Methylene Blue
2013/2/19
Objective: The purpose of this study was to develop a novel colorimetric system for direct detection of hydrogen sulfide on the tongue dorsum from subjects with complaints of halitosis. Method: An ass...
Role of Calcium Signals on Hydrogen Peroxide-Induced Apoptosis in Human Myeloid HL-60 Cells
caspases calcium signal apoptosis mitochondria H2O2 HL-60 cells
2009/10/26
The present study is aimed to determine the role of calcium signaling evoked by the oxygen radical, hydrogen peroxide (H2O2) and the specific inhibitor of calcium reuptake thapsigargin on apoptosis in...
Chemical mechanical polishing of titanium with colloidal silica containing hydrogen peroxide — mirror polishing and surface properties
Chemical mechanical polishing Titanium XPS
2009/9/11
Chemical mechanical polishing (CMP) of cpTi (Ti) was carried out using two types of slurries, acidic and basic colloidal silica containing H2O2 up to 3 wt%, to obtain flat and mirror-polished surfaces...
Residence time distributions of hydrogen in bone of anesthetized dogs and rabbits were used to estimate local blood perfusion rates and to characterize the important transport processes taking place. ...
Hydrogen gas is not oxidized by mammalian tissues under hyperbaric conditions
hyperbaric chamber
2009/6/12
Mammalian tissues, including heart, lung, liver, kidney, spleen, and skeletal muscle of guinea pig, rat, or pig, were exposed to tritium (T2) and high pressures of H2. Incorporation of the tritium lab...
Measurement of cerebral blood flow in rats and mice by hydrogen clearance during hyperbaric oxygen exposure
CO2 carbon dioxide hydrogen hyperbaric cerebral blood flow air animal mice
2009/6/8
The hydrogen (H2) clearance method was adapted for the measurement of regional cerebral blood flow (rCBF) in anesthetized rats and mice during hyperbaric oxygen (HBO2) exposure. Polarographic platinum...
Acute hydrogen sulfide poisoning treated with hyperbaric oxygen
hyperbaric sulfide nitrite poisoning
2009/5/8
The authors report 10 cases of accidental exposure to H2S. Local H2S concentration was still 600 mg/m34 after the accident. Five of the victims died at the site of the exposure. Of the other 5, 4 los...
Hydrogen Peroxide Infusion vs. Hyperbaric Oxygenation: Theoretical Considerations (23 March 1963)
Hydrogen Peroxide Infusion Theoretical
2009/5/8
Lanphier EH. Hydrogen Peroxide Infusion vs. Hyperbaric Oxygenation: Theoretical Considerations (23 March 1963). J. Hyperbaric Med 1992; 7(1):43-55.
Construction of HeLa cell lines overexpressing metallothioneins-1 and -2 and their cytoprotective effects against oxidative damage induced by hydrogen peroxide
cell viability copper cytoprotective effect HeLa cell metallothionein
2009/4/1
It has been suggested that metallothioneins (MTs) play a role to protect cells from toxic effects of oxidative stress and heavy metals. On the other hand, the ability of Cu-containing MT to protect ce...
Hydrogen gas is not oxidized by mammalian tissues under hyperbaric conditions.
hyperbaric chamber
2009/3/28
Mammalian tissues, including heart, lung, liver, kidney, spleen, and skeletal muscle of guinea pig, rat, or pig, were exposed to tritium (T2) and high pressures of H2. Incorporation of the tritium lab...
Spontaneous lipid peroxidation and production of hydrogen peroxide and superoxide in human spermatozoa. Superoxide dismutase as major enzyme protectant against oxygen toxicity
Human spermatozoa liquid peroxidation superoxide production hydrogen peroxide production
2009/2/23
Spontaneous lipid peroxidation in washed human spermatozoa was induced by aerobic incubation at 32 C and measured by malonaldehyde production; loss of motility during the incubation was determined s...
Degradation in Performance of Orthodontic Wires Caused by Hydrogen Absorption During Short-Term Immersion in 2.0% Acidulated Phosphate Fluoride Solution
Orthodontic wire Hydrogen embrittlement Fluoride Corrosion
2008/12/15
The purpose of this study was to investigate the degradation in performance of four major alloys of orthodontic wires, namely nickel-titanium, beta titanium, stainless steel, and cobalt-chromium- ...
ANTIFUNGAL EFFICACY OF HYDROGEN PEROXIDE IN DENTAL UNIT WATERLINE DISINFECTION
dentistry DUWL fungi decontamination hydrogen peroxid
2010/12/23
The concentration and composition of fungal flora in dental unit waterlines (DUWL) were evaluated. For this purpose, water samples from unit reservoirs and high-speed handpieces, and biofilm samples f...
DETOXIFICATION OF CYANIDE IN GOLD PROCESSING WASTEWATER BY HYDROGEN PEROXIDE
Cyanide destruction hydrogen peroxide copper sulfate optimum pH cyanide
2010/2/8
Utilizing cyanide compounds in mining and chemical industry is one of the most important environmental issues due to the acute toxic properties of many cyanide compounds to humans and aquatic life. Cy...