Ro Osawa
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View article: Genome sequence of <i>Enterococcus gallinarum</i> AH4, a milk oligosaccharide-degrading strain isolated from suckling rats
Genome sequence of <i>Enterococcus gallinarum</i> AH4, a milk oligosaccharide-degrading strain isolated from suckling rats Open
We had previously isolated Enterococcus gallinarum AH4, a strain capable of degrading rat milk oligosaccharides. In this study, we determined the whole-genome sequence of AH4. This whole-genome information will expand our understanding of …
View article: Pre- and Post-Harvest Conditions Affect Polyphenol Content in Strawberry (Fragaria × ananassa)
Pre- and Post-Harvest Conditions Affect Polyphenol Content in Strawberry (Fragaria × ananassa) Open
The strawberry fruit contains abundant polyphenols, such as anthocyanins, flavan-3-ol, and ellagitannin. Polyphenol enrichment improves the quality of strawberries and leads to a better understanding of the polyphenol induction process. We…
View article: Characterization of pig saliva as the major natural habitat of Streptococcus suis by analyzing oral, fecal, vaginal, and environmental microbiota
Characterization of pig saliva as the major natural habitat of Streptococcus suis by analyzing oral, fecal, vaginal, and environmental microbiota Open
It is generally difficult to specify the sources of infection by which domestic animals may acquire pathogens. Through 16S rRNA gene amplicon sequencing, we compared the composition of microbiota in the saliva, vaginal mucus, and feces of …
View article: Development of PCR for identifying <i>Streptococcus parasuis</i>, a close relative of <i>Streptococcus suis</i>
Development of PCR for identifying <i>Streptococcus parasuis</i>, a close relative of <i>Streptococcus suis</i> Open
Streptococcus parasuis has recently been removed taxonomically from Streptococcus suis, a zoonotic pathogen. S. parasuis has been detected in healthy pigs and in diseased pigs, which suggests that S. parasuis is involved in the normal micr…
View article: An <i>in vitro</i> investigation of immunomodulatory properties of <i>Lactobacillus plantarum</i> and <i>L. delbrueckii</i> cells and their extracellular polysaccharides
An <i>in vitro</i> investigation of immunomodulatory properties of <i>Lactobacillus plantarum</i> and <i>L. delbrueckii</i> cells and their extracellular polysaccharides Open
Many probiotic lactobacilli and their extracellular polysaccharides (EPS) have beneficial immunological properties. However, it is unclear how they elicit the host immune response. We thus investigated the immunological properties of UV-ki…
View article: Cytomegalovirus Infection in Patients with Sepsis Due to Bloodstream Infections: Lower Risk and Better Outcomes in New versus Already Hospitalised Intensive Care Unit Admissions
Cytomegalovirus Infection in Patients with Sepsis Due to Bloodstream Infections: Lower Risk and Better Outcomes in New versus Already Hospitalised Intensive Care Unit Admissions Open
Few studies have examined cytomegalovirus (CMV) reactivation exclusively in immunocompetent patients with sepsis due to bloodstream infections. In a cohort of CMV-seropositive critically ill otherwise non-immunosuppressed patients with sep…
View article: Current Taxonomical Situation of Streptococcus suis
Current Taxonomical Situation of Streptococcus suis Open
Streptococcus suis, a major porcine pathogen and an important zoonotic agent, is considered to be composed of phenotypically and genetically diverse strains. However, recent studies reported several “S. suis-like strains” that were identif…
View article: High Prevalence of Diarrheagenic <i>Escherichia coli</i> among Children with Diarrhea in Kenya
High Prevalence of Diarrheagenic <i>Escherichia coli</i> among Children with Diarrhea in Kenya Open
Diarrheagenic Escherichia coli (DEC) is an important agent of endemic and epidemic diarrhea worldwide, particularly in developing countries. DEC cannot be differentiated from commensal E. coli on selective media, although there are a few e…
View article: Adhesion properties of a putative polymorphic fimbrial subunit protein from <i>Bifidobacterium longum</i> subsp. <i>longum</i>
Adhesion properties of a putative polymorphic fimbrial subunit protein from <i>Bifidobacterium longum</i> subsp. <i>longum</i> Open
In our previous study, we found that the open reading frame bl0675 in the genome of Bifidobacterium longum subsp. longum isolated from human feces encoded a novel putative fimbrial protein, was highly polymorphic, and had five variants (A,…
View article: Enhanced Resistance to Several Abiotic Stresses in <i>Vibrio cholerae</i> during Starvation
Enhanced Resistance to Several Abiotic Stresses in <i>Vibrio cholerae</i> during Starvation Open
In this study, we investigated whether Vibrio cholerae cells exposed to nutrient-limited conditions developed resistance to abiotic stresses because of which most, if not all, starved cells turn coccoid in shape and exhibited marked resist…
View article: Gangrenous mastitis associated with <i>Streptococcus gallolyticus</i> subsp. <i>gallolyticus</i> in Japanese Black Cattle
Gangrenous mastitis associated with <i>Streptococcus gallolyticus</i> subsp. <i>gallolyticus</i> in Japanese Black Cattle Open
2012年，沖縄県石垣市で4歳の黒毛和種の繁殖牛が分娩後7日前後から左後乳房が腫脹，硬結し，壊疽性乳房炎と診断された．乳汁の細菌検査ではα溶血性グラム陽性球菌が1.4×105CFU/mlで分離された．分離菌はAPI 20 Strep及びsodA遺伝子を標的としたPCRによりStreptococcus gallolyticusと同定され，タンニン酸及び没食子代謝試験によりS. gallolyticus subsp. gallolyticus（S. g. g.）と同定された．分…