| mite-related bacterial antigens stimulate inflammatory cells in rosacea. | patients with papulopustular rosacea have a higher density of demodex folliculorum mites on their faces than normal subjects but the role, if any, of their mites in initiating inflammation is disputed. selective antibiotics are effective in reducing the inflammatory changes of papulopustular rosacea, but their mode of action is unknown. | 2007 | 17596156 |
| bacillus oleronius and demodex mite infestation in patients with chronic blepharitis. | clin microbiol infect abstract: to better recognize the pathogenicity of ocular demodex mites, we analysed bacillus oleronius infection in patients with demodex-related chronic blepharitis. the studies were conducted on 68 adult patients, in whom ophthalmological and parasitological tests permitted the distinction of a group of 38 patients with a diagnosis of demodex-related chronic blepharitis (group 1, including a subgroup 1a with moderate blepharitis and a subgroup 1b with severe blepharitis) ... | 2011 | 22114987 |
| bacillus acidicola sp. nov., a novel mesophilic, acidophilic species isolated from acidic sphagnum peat bogs in wisconsin. | a mesophilic, acidophilic, spore-forming bacterium, strain 105-2(t), was isolated from an acidic sphagnum peat bog in wisconsin, usa. strain 105-2(t) has 16s rrna gene sequence similarity to bacillus sporothermodurans dsm 10599(t) and bacillus oleronius dsm 9356(t) of 97.4 and 97.8%, respectively. the primary lipoquinone is mk-7 and the major fatty acids are 15:0 iso, 15:0 anteiso and 17:0 anteiso. the predominant polar lipids were found to be diphosphatidylglycerol, phosphatidylglycerol, phosph ... | 2005 | 16166720 |
| reclassification of brevibacillus brevis strains ncimb 13288 and dsm 6472 (=nrrl nrs-887) as aneurinibacillus danicus sp. nov. and brevibacillus limnophilus sp. nov. | comparison of the hypervariable region (269-279 bases in length) at the 5' end of the 16s rdna sequences of 29 bacterial strains that were identified previously as brevibacillus brevis showed that 13 strains clustered with aneurinibacillus species, eight strains clustered with bacillus species and eight strains clustered with brevibacillus species. based on dna-dna hybridization results, 27 strains, not including [brevibacillus brevis] ncimb 13288 and [brevibacillus brevis] dsm 6472, were reiden ... | 2004 | 15023954 |
| correlation between serum reactivity to demodex-associated bacillus oleronius proteins, and altered sebum levels and demodex populations in erythematotelangiectatic rosacea patients. | rosacea is a chronic inflammatory condition that affects the skin of the face and the eyes. the aetiology of rosacea is not clearly established but increasing evidence suggests a potential role for bacteria in the induction of the condition. a role for bacillus oleronius, originally isolated from within a demodex folliculorum mite, in the aetiology of the condition has been suggested. the aim of the study was to determine whether a correlation existed between the level of sebum and the density o ... | 2014 | 24248990 |
| bacillus vini sp. nov. isolated from alcohol fermentation pit mud. | a novel aerobic, gram-stain-positive, sporogenous, rod-shaped bacterium, designated lam0415(t), was isolated from an alcohol fermentation pit mud sample collected from sichuan luzhou-flavour liquor enterprise in china. the isolate was found to be able to grow at nacl concentrations of 0-10 % (w/v) (optimum: 1.0 %), 10-50 °c (optimum: 30-35 °c) and ph 3.0-10.0 (optimum: 7.0-8.0). phylogenetic analysis of 16s rrna gene sequences indicated that the new isolate belonged to the genus bacillus and was ... | 2016 | 27055557 |
| potential role of demodex mites and bacteria in the induction of rosacea. | rosacea is a common dermatological condition that predominantly affects the central regions of the face. rosacea affects up to 3 % of the world's population and a number of subtypes are recognized. rosacea can be treated with a variety of antibiotics (e.g. tetracycline or metronidazole) yet no role for bacteria or microbes in its aetiology has been conclusively established. the density of demodex mites in the skin of rosacea patients is higher than in controls, suggesting a possible role for the ... | 2012 | 22933353 |
| hypothesis of demodicidosis rosacea flushing etiopathogenesis. | most of the patients with erythematotelangiectatic rosacea are characterized by flushing, oedema and telangiectasia. the etiopathogenesis of the flushing in rosacea patients is unknown. clinically the flushing in rosacea is similar to the "asian flushing syndrome". most asians have an overactive alcohol dehydrogenase (adh) that tends to break down alcohol into acetaldehyde faster. people with "asians flushing syndrome" have a genetic disorder with the aldehyde dehydrogenase 2(∗)2 (aldh2(∗)2) all ... | 2015 | 25683389 |
| potential role of microorganisms in the pathogenesis of rosacea. | rosacea is a skin condition of abnormal inflammation and vascular dysfunction. the active contribution of a microbial agent in the development or progression of rosacea continues to be debated. research supports the presence of commensal demodex folliculorum mites at increased density in the skin and associates helicobacter pylori infection of the gut with rosacea. fewer studies implicate staphylococcus epidermidis, chlamydophila pneumoniae, and the demodex-associated bacteria bacillus oleronius ... | 2013 | 24011460 |
| evaluation of bacillus oleronius as a biological indicator for terminal sterilization of large-volume parenterals. | in the production of large-volume parenterals in japan, equipment and devices such as tanks, pipework, and filters used in production processes are exhaustively cleaned and sterilized, and the cleanliness of water for injection, drug materials, packaging materials, and manufacturing areas is well controlled. in this environment, the bioburden is relatively low, and less heat resistant compared with microorganisms frequently used as biological indicators such as geobacillus stearothermophilus (at ... | 2016 | 26889054 |
| emended descriptions of bacillus sporothermodurans and bacillus oleronius with the inclusion of dairy farm isolates of both species. | bacillus sporothermodurans is an industrially important micro-organism because of its ability to produce endospores which resist ultra high temperature (uht) and industrial sterilization processes. it was described by pettersson et al. (1996) based on seven genetically homogeneous isolates all from uht-milk. bacillus oleronius, the closest phylogenetic neighbor of b. sporothermodurans, was described by kuhnigk et al. (1995), based on a single strain, isolated from the hindgut of the termite reti ... | 2011 | 21398506 |
| bacillus oleronius sp.nov., a member of the hindgut flora of the termite reticulitermes santonensis (feytaud). | a new rod-shaped endospore-forming bacterium is described, which was isolated from the hindgut of the termite reticulitermes santonensis (feytaud). the isolate stains gram negative and its dna has a guanine-plus-cytosine content of 35 mol%. despite the gram-staining reaction, both biochemical and physiological features place the isolate in the genus bacillus and indicate a phenotypic resemblance to the bacillus firmus-lentus group of species. on the basis of comparative 16s rrna analysis and som ... | 1995 | 7553453 |
| demodex-associated bacillus proteins induce an aberrant wound healing response in a corneal epithelial cell line: possible implications for corneal ulcer formation in ocular rosacea. | the aim of the work presented here was to establish the response of a corneal epithelial cell line (htcepi) to protein extracted from a bacterium (bacillus oleronius) previously isolated from a demodex mite from a rosacea patient. | 2012 | 22531699 |
| positive correlation between serum immunoreactivity to demodex-associated bacillus proteins and erythematotelangiectatic rosacea. | rosacea is a chronic inflammatory condition that affects the skin of the face and the eyes. erythematotelangiectatic rosacea is characterized by flushing, oedema and telangiectasia. patients with rosacea demonstrate elevated densities of demodex mites in their skin compared with controls. a bacterium (bacillus oleronius) isolated from demodex mites from a patient with papulopustular rosacea has been demonstrated to produce antigenic proteins that may play a role in papulopustular and ocular rosa ... | 2012 | 22709541 |
| exposure of a corneal epithelial cell line (htcepi) to demodex-associated bacillus proteins results in an inflammatory response. | a role for a bacterium, bacillus oleronius, originally isolated from a demodex mite, in the induction of ocular rosacea has been proposed. the aim of this work was to characterize the response of a corneal epithelial cell line to bacillus proteins, as this might give an insight into how such proteins contribute to the symptoms of ocular rosacea in vivo. | 2014 | 25277231 |
| activation of neutrophils via ip3 pathway following exposure to demodex-associated bacterial proteins. | rosacea is a chronic inflammatory condition that predominantly affects the skin of the face. sera from rosacea patients display elevated reactivity to proteins from a bacterium (bacillus oleronius) originally isolated from a demodex mite from a rosacea patient suggesting a possible role for bacteria in the induction and persistence of this condition. this work investigated the ability of b. oleronius proteins to activate neutrophils and demonstrated activation via the ip3 pathway. activated neut ... | 2016 | 26433579 |
| draft genome sequence of bacillus oleronius dsm 9356 isolated from the termite reticulitermes santonensis. | bacillus oleronius strain dsm 9356 isolated from the termite reticulitermes santonensis was sequenced to gain insights in relation to its closest phylogenetic neighbor bacillus sporothermodurans. the draft genome of strain dsm 9356 contains 5,083,966 bp with an estimated g + c content of 35%, 4899 protein-coding genes, 116 trnas and 18 rrnas. the rast annotation assigned these genes into 462 subsystems, with the maximum number of genes associated with amino acids and derivatives metabolism (14.8 ... | 2017 | 28386530 |
| control of corrosive bacterial community by bronopol in industrial water system. | ten aerobic corrosive bacterial strains were isolated from a cooling tower water system (cws) which were identified based on the biochemical characterization and 16s rrna gene sequencing. out of them, dominant corrosion-causing bacteria, namely, bacillus thuringiensis en2, terribacillus aidingensis en3, and bacillus oleronius en9, were selected for biocorrosion studies on mild steel 1010 (ms) in a cws. the biocorrosion behaviour of en2, en3, and en9 strains was studied using immersion test (weig ... | 2018 | 29354366 |
| swionibacillus sediminis gen. nov., sp. nov., a member of the family bacillaceae isolated from ocean sediment. | a gram-stain-negative, non-motile, strictly aerobic bacterium designated bw11-2t was isolated from marine sediment of the south-west indian ocean. cells of bw11-2t were rod-shaped, endospore-forming, 0.3-0.5 µm wide, 1.8-2.0 µm long, catalase-positive and oxidase-negative. the isolate was capable of growing at 15-45 °c (optimum 30 °c), ph 5-9 (optimum 7) and with 0.5-10 % (w/v) nacl (optimum 3 %). based on 16s rrna gene sequence similarities, bw11-2t was shown to belong to the family bacillaceae ... | 2017 | 28857029 |
| [physiopathology of rosacea]. | for a long time rosacea was thought to be mainly a vascular disorder. in the past ten years many other concepts have emerged, such as the neurovascular aspects and involvement of innate immunity. there is obviously a genetic part in rosacea, as it is much more common in people with fair skin, blue eyes and celtic ascendance. the same persons are submitted to continental weather, with major temperature seasonal variations. erythema and telangiectasia result from dilated superficial capillaries th ... | 2014 | 25151931 |
| bacillus lycopersici sp. nov., isolated from a tomato plant (solanum lycopersicum l.). | a gram-stain-positive, rod-shaped, endospore-forming bacterium (designated strain cc-bw-5(t)) was isolated from chopped tomato stems. the isolate grew at 20-40 °c, ph 6.0-8.0 and tolerated 6% (w/v) nacl. the most closely related strains in terms of 16s rrna gene sequence similarity were bacillus isabeliae (95.3%) and bacillus oleronius (95.3%). the g+c content of the genomic dna was 37.2 ± 3.6 mol%. strain cc-bw-5(t) was determined to possess c16 : 0, iso-c14 : 0, iso-c15 : 0, anteiso-c15 : 0 an ... | 2015 | 25833153 |
| endosymbiosis and its significance in dermatology. | proposed at the beginning of the twentieth century to explain the origin of eukaryotic organelles from prokaryotes, endosymbiosis is now medically defined by various interaction patterns between microorganisms and their residing hosts, best exemplified by the bacterial endosymbiont wolbachia identified in arthropods and filarial nematodes, which can influence normal development, reproduction, survival and transmission of the hosts. based on the transmission modes, vertical or horizontal, and the ... | 2017 | 29194776 |