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An Acinetobacter baumannii nasal carriage isolate recovered from an asymptomatic patient in Vietnam is extensively antibiotic resistant and produces a rare K71 type capsule.

UNLABELLED: Acinetobacter baumannii is a leading cause of multidrug-resistant bacterial infections worldwide, and the capsular polysaccharid … tic content of KL71, the K71 CPS was found to be made up of octasaccharide K units containing six l-rhamnose residues and one residue each of N-acetyl-d-glucosamine and d-glucuronic acid. K71 CPS was branched and closely related to the K74 CPS produced by BAL_309, an antibiotic susceptible ST142 isolate recovered from an intubated patient in the same ICU 7 …

Rutinoside at C7 attenuates the apoptosis-inducing activity of flavonoids.

Rutinoside (rhamnoglucoside; rhamnose+glucose) addition has been examined extensively in the metabolism of flavonoids, however the effect of rutinoside on apoptosis-inducing activity of flavonoids is still unknown. In the present study, the two pairs of flavonoids of hesperetin (HT) and hesperidin (HD; HT-7-rutinose), and naringenin (NE) and naringin (NE-7-rutinose), were used to study their apoptosis-inducing activities in HL-60 cells. Both HD and NI are flavonoids which contain a rutinoside at the C7 of HT and NE, respectively. Results of the MTT assay showed that HT and NE, but not HD and N…

Binding properties and biological effects of oxidized-ouabain on cultured neonatal-rat cardiac myocytes. Implications on the mechanism of action of the digitalis-glycosides.

Mild oxidation of ouabain with NaIO4, causes the cleavage of the bond between C2' and C3' of the rhamnose ring, leaving the steroid moiety intact. The oxidized ouabain (ox-ouabain) was examined on spontaneously contracting cultured rat-cardiac myocytes. Two classes of binding sites, with high and low affinities, were detected for both ox-ouabain and unmodified ouabain. The dissociation constants (KD) were found to be similar for both compounds, but the rate constants of association (ka) and dissociation (kd) of the low affinity sites were higher for ox-ouabain as compared with ouabain. Displac…

Nocardia niwae sp. nov., isolated from human pulmonary sources.

Members of the genus Nocardia are responsible for cutaneous, pulmonary and disseminated human infections. From 2003 to 2008, four nocardiofo … ylogenetically related species were growth at 45 °C, and three of the four novel strains utilized l-rhamnose. The antimicrobial profiles could not reliably distinguish the novel species from related nocardiae. Analysis showed that the 16S rRNA gene sequences of the four novel isolates were identical. The blast analysis of the near full-length 16S rRNA gene …

Biochemical and genetic characterization of serologically untypable Streptococcus mutans strains isolated from patients with bacteremia.

Four out of 522 streptococcal isolates from the peripheral blood of patients with bacteremia exhibited typical properties of Streptococcus mutans in terms of sucrose-dependent adhesion, expression of glucosyltransferases, fermentation profiles of sugars, the presence of surface protein antigen, and DNA-DNA hybridization. Two strains were determined as serotype f and e by immunodiffusion, whereas the other two isolates did not react with the specific antiserum to S. mutans serotype c. e. or f of the eight different serotypes of mutans streptococci. The latter two untypable isolates, however, ex

Potential Risk of Spreading Resistance Genes within Extracellular-DNA-Dependent Biofilms of Streptococcus mutans in Response to Cell Envelope Stress Induced by Sub-MICs of Bacitracin.

Antibiotics are used to treat or prevent some types of bacterial infection. The inappropriate use of antibiotics unnecessarily promotes anti … pression in the mid-log phase. We also revealed that certain rgp genes involved in the synthesis of rhamnose-glucose polysaccharide related to cell wall synthesis were downregulated by bacitracin. In addition, glucosyltransferase-I was also involved in eDNA-dependent biofilm formation. The biofilm led to increased transformation efficiencies and promoted h …

Molecular activity of bioactive phytocompounds for inhibiting host cell attachment and membrane fusion interacting with West Nile Virus envelope glycoprotein.

West Nile virus is an arbovirus primarily spread by mosquitoes, which are the principal carriers and belong to the Flaviviridae category. Th … 464, -5.802, -5.617, and -4.92, kcal/mol for CID: 359 (Phloroglucinol), 9064 (Cianidanol), 25310 (L-Rhamnose), and 492405 (Favipiravir), respectively. The lead compounds and the control ligand both bind at the common active site of the macro-molecule, as evidenced by their interactions with the same amino acid residues at LEU281, ASN47, THR282, SER29, MET4 …

Hepatoprotective phenylpropanoids from Scrophularia buergeriana roots against CCl(4)-induced toxicity: action mechanism and structure-activity relationship.

Phenylpropanoids isolated from the roots of Scrophularia buergeriana MIQ. (Scrophulariaceae) protected primary cultures of rat hepatocytes from toxicity induced by carbon tetrachloride (CCl(4) ). In this report, we show that two of these phenylpropanoids, 4-O-E- p-methoxycinnamoyl-alpha-L-rhamnopyranoside ester ( 1) and p-methoxycinnamic acid ( 3) have significant hepatoprotective activity; another phenylpropanoid used for comparison, isoferulic acid ( 11), was equally active. To determine the mechanism(s) by which these three phenylpropanoids exerted their hepatoprotective activity, we measur

Genetic and Structural Variation in the O-Antigen of Salmonella enterica Serovar Typhimurium Isolates Causing Bloodstream Infections in the Democratic Republic of the Congo.

Salmonella enterica serovar Typhimurium causes a devastating burden of invasive disease in sub-Saharan Africa with high levels of antimicrob … ase gene oafA. In addition, we observe further O-antigen variations, including O-acetylation of the rhamnose residue, different levels of glucosylation, and the absence of O-antigen repeating units. Large recombination events underlying O-antigen variation were resolved using long-read MinION sequencing. Our study suggests evolutionary pressure toward O-an …

Wildfire of Soybean Caused by Pseudomonas syringae pv. tabaci, a New Disease in Korea.

In 2006 and 2007, a new bacterial disease was observed in field-cultivated soybeans in Boeun District and Munkyung City of Korea. The diseas … dihydrolase, growth at 37°C, utilization of geraniol, benzoate, cellobiose, sorbitol, trehalose, l-rhamnose, and adonitol. Positive reactions were catalase and arbutin hydrolysis, utilization of sorbitol, d-arabinose, and dl-serine. The strains were variable in utilization of mannitol, sucrose, and d-arabinose. The 1,472-bp PCR fragments of strains, BC236 …

Causal Relationship Between Gut Microbiome and Infectious Mononucleosis: Bidirectional Mendelian Randomization Reveals Infectious Mononucleosis-Driven Gut Dysbiosis.

Background To assess bidirectionality between gut microbiota and Epstein-Barr virus (EBV)-driven infectious mononucleosis (IM), we conducted … esis VI (OR = 1.083, 95% CI: 1.000-1.172, P = 0.048), while showing a protective association with L-rhamnose degradation I (OR = 0.922, 95% CI: 0.851-0.999, P = 0.046). Conclusion This study provides genetic evidence of a bidirectional causal relationship between the gut microbiome and IM. These findings suggest that IM may influence gut microbial ecosyste …

First Report of Pectobacterium carotovorum subsp. carotovorum on Spathiphyllum wallisii in Argentina.

Peace lily (Spathiphyllum wallisii Regel) is a popular ornamental potted plant in Argentina. During May of 2008 (austral autumn), necrotic l … d grew at 37°C. Acid was produced from cellobiose, d-glucose, d-melibiose, d-mannitol, d-mannose, l-rhamnose, d-sucrose, and l-arabinose but not from inositol and d-sorbitol. Bacteria utilized N-acetyl-glucosamine and citrate but not tartrate, benzoate, or propionate. Their identity was confirmed by 16S rRNA gene sequencing of strain F402Pcc (GenBank Acces …

Acute L-glutamine supplementation does not improve gastrointestinal permeability, injury or microbial translocation in response to exhaustive high intensity exertional-heat stress.

Purpose: Exertional-heat stress adversely distrupts (GI) barrier integrity and, through subsequent microbial translocation (MT), can result … AK: International Society for the Advancement of Anthropometric Kinanthropometry; L/R: Lactulose-to-Rhamnose; LT: Lactate Threshold; MT: Microbial Translocation; mVAS: Modified Visual Analogue Scale; PBS: Phosphate-Buffered Saline; PLA: Placebo; qPCR: Quantitative Polymerase Chain Reaction; RH: Relative Humidity; RPE: Rate of Perceived Exertion; SD: Standa …

First Report of Streptomyces galilaeus Associated with Common Scab in China.

During a survey of potato scab pathogens in China from 2003 to 2012, a new pathogen was found in Shanxi and Neimenggu provinces. The inciden … tomyces project (4). The strain grew in media supplemented with L-arabinose, D-fructose, D-glucose, rhamnose, raffinose, meso-inositol, sucrose, and D-xylose, but not D-mannitol. It used L-hydroxyproline, L-methionine, and L-histidine, and produced melanin on tyrosine and peptone yeast extract agar. The strain did not grow at a pH less than 5.0 and was sen …

First Report of Bacterial Leaf Spot of Basil Caused by Pseudomonas viridiflava in Argentina.

In June 1998, during a cool, humid period, typical bacterial spot symptoms were observed on basil plantlets (Ocimun basilicum L. 'Royal Loui … oduced aerobically from D-glucose, mannitol, mesoinositol and sorbitol, but not from D-arabinose, L-rhamnose, melibiose, amygdalin, or sucrose. Bacteria used D-tartrate, pyruvate, and citrate, but not benzoate. The strains did not hydrolyze starch, exhibited an oxidative metabolism of glucose, and did not reduce nitrates to nitrites or accumulate poly-β-hy …

[Research on ameliorating pulmonary fibrosis in silicosis mice of Cordyceps cicadae polysaccharides].

Objective: A mouse silicosis model was constructed by injecting silicon dioxide (SiO(2)) particles into the trachea to explore the effect an … d by Western blot. Results: The total sugar content of the CCP was 86.78%, composed of D-mannose, D-rhamnose, D-glucose and D-galactose, with a molar ratio of 12.71∶1.53∶1.00∶12.64. The infrared spectrum indicated the characteristic groups of its polysaccharides. Compared with the control group, the body weight of mice in the model group was decreased, lun …

[Study on the situation of plague in Junggar Basin of China].

OBJECTIVE: To understand the distribution, fauna, population structure of host animals and their parasitic fleas as well as popular dynamic … ich isolated from Junggar Basin were positive of Maltose, Ejiao sugar and Glycerol, and negative of Rhamnose and Nitrogen, which were all strongly poisonous to mouse. CONCLUSION: The natural plague foci in Junggar Basin spread all over the whole Junggar Basin. There were animal plague cases found in 12 counties (cites) while Karamy, Bole, Jimusaer and Qit …

Естественные соединения серы в состоянии психического здоровья и неврологических расстройств: наблюдения и исследования.

За прошедшие годы глобальное бремя неврологических и психических расстройств значительно возросло, в результате чего они стали одной из наиболее серьезных проблем и вызовов для здоровья человека. В рамках новых методов лечения от болезней и болезней все больше внимания уделяется вопросам питания и здравоохранения. Питание серы, главным образом полученное из различных природных источников, играет решающую роль в многочисленных физиологических процессах, включая функцию мозга. В настоящем обзоре содержится обзор химического состава ряда естественных источников таких богатых серой веществ, как из

Совпадение в полном тексте источника
… In type A3s, the disaccharide is made up of glucuronic acid and sulfated rhamnose, but in type B3s, the major linkages are (1 → 4) glycosidic bonds between iduronic acid and sulfated rhamnose. It consists mostly of sulfate, rhamnose, xylose, glucose, iduronic acid, and glucuronic acid ( 140 ). …

[Prospects for development of new antituberculous drugs].

Tuberculosis (TB) is a growing international health concern, since it is the leading infectious cause of death in the world today. Moreover, … e. In this review, I described the screening of drugs that have an inhibitory activity against dTDP-rhamnose synthesis of M. tuberculosis, as a new drug target of the organism. In addition, I discussed the usefulness of antisense oligo DNAs specific to mycobacterial genes encoding certain metabolic enzymes or virulence factors that play roles in the bacter …

Advances in delivery methods of Arthrospira platensis (spirulina) for enhanced therapeutic outcomes.

Arthrospira platensis (A. platensis) aqueous extract has massive amounts of natural products that can be used as future drugs, such as C-phycocyanin, allophycocyanin, etc. This extract was chosen because of its high adaptability, which reflects its resolute genetic composition. The proactive roles of cyanobacteria, particularly in the medical field, have been discussed in this review, including the history, previous food and drug administration (FDA) reports, health benefits and the various dose-dependent therapeutic functions that A. platensis possesses, including its role in fighting against

Совпадение в полном тексте источника
… Besides, A. platensis contains about 13.5% carbohydrates [ 19 , 29 , 32 , 33 ], which is mainly composed of glucose, along with rhamnose, mannose, xylose, galactose, and two unusual sugars, including 2-O-methyl-l-rhamnose and 3-O-methyl-l-rhamnose [ 29 ]. …