A nosocomial cluster of Roseomonas mucosa bacteremia possibly linked to contaminated hospital environment.

Roseomonas, a genus of pink-pigmented glucose non-fermentative bacteria, has been associated with various primary and hospital-acquired human infections; however, to our knowledge, its nosocomial transmission has never been reported. Clinical and epidemiological investigations were carried out after two cases of R. mucosa bacteremia occurred in our hospital in 2018. Environmental samples were taken of environmental surfaces prone to water contamination in the wards and cultured. The two clinical isolates and all environmental isolates that showed growth of pink colonies were identified using matrix-assisted laser desorption/ionization time of flight mass spectrometry and 16S rRNA gene sequencing. Pulse-field gel electrophoresis (PFGE) was performed and fingerprinting software was used to analyze the DNA restriction patterns and determine their similarity. Two patients who developed R. mucosa bacteremia had received care from the same treatment team. Of 126 environmental samples, five showed growth of R. mucosa. Using 80% similarity as the cut-off, PFGE analysis revealed that the isolates from the two patients' blood cultures and three environmental isolates belonged to the same clone. The hospital water environment was contaminated with the same clone of R. mucosa that caused bacteremia in the two patients, suggesting nosocomial transmission linked to contaminated environment. Increased vigilance is needed to monitor the emergence of Roseomonas in healthcare settings.

Nasal diphtheria (chronic carriage) caused by nontoxigenic Corynebacterium diphtheriae.

Toxigenic strains of Corynebacterium diphtheriae cause the majority of respiratory diphtheria cases. However, nontoxigenic strains of C. diphtheriae can also cause diseases, and have become increasingly common. Infection that is limited to the anterior nares (nasal diphtheria) is a well-described but rare condition, even for toxigenic C. diphtheriae. We report a case involving chronic carriage of nasal diphtheria caused by nontoxigenic C. diphtheriae, as well as a review of other reported nontoxigenic C. diphtheriae cases in Japan. Mild or asymptomatic nasal diphtheria involving nontoxigenic strains, which can be the source of transmission, may be underrecognized. Our case highlights the importance of awareness regarding nontoxigenic diphtheria among clinicians, especially in the era of improved diphtheria vaccination coverage.

Effect of Proteolytic Modification on Texture and Mastication of Heat-Treated Egg White Gels.

Raw egg white undergoes sol-gel transition by heat treatment, which changes it to an elastic gel. Here, protease treatment to render a new texture to heated egg white gel was applied. Protease-treated gels exhibited ductile flow without obvious rupture points. Transmission electron microscopy analysis showed that in protease-treated gels, protein aggregates were distributed more homogeneously compared with that observed in the untreated control, probably because ovalbumin was digested into small peptides as revealed by SDS-PAGE. The properties of the gel were evaluated by sensory tests and by measuring the movement of the masseter muscle, using surface electromyography. Results showed that maximum bite force and mastication duration were decreased for the protease-treated gels, which were evaluated as being softer, smoother, less elastic and better textured. Overall, our results indicate that protease-treated egg white gel has superior qualities and is easier to swallow than the untreated gel. PRACTICAL APPLICATIONS: In the food industry, the use of egg white is limited compared with that of egg yolk and whole eggs. In this study, we performed protease treatment to generate a new food material with smoother and softer texture compared with heat treated egg white. Our findings may expand the consumption of egg white, which can be consumed by people with mastication and swallowing disorders, and reduce the waste of egg white as a surplus product.

Characterization of the quality of imbibed soybean at an early stage of pre-germination for the development of a new protein food item.

This was a pilot study carried out to develop a new protein food item from imbibed soybean before germination. It identified the significance of a short stage after imbibition and before germination, and that vitamin C production was activated in as little as 16 h from the start of imbibition, without any influence on the soy protein quality or sensory acceptability, while longer imbibition caused the imbibed soybean to activate its phytophysiological metabolism for germination. DNA microarray analysis indicated that the genes for carbohydrate metabolism were up-regulated prior to 16 h, and that the expression rates of genes responsible for environmental factors were down-regulated. Thereafter, the expression rates of the genes associated with lipid metabolism and secondary metabolite production were changed. This information should contribute to a better understanding of how to develop a new soy protein item in pre-germination before active physiological processes begin.

Transcriptomic and Metabolomic Analyses Provide Insights into the Upregulation of Fatty Acid and Phospholipid Metabolism in Tomato Fruit under Drought Stress.

Transcriptome and metabolome analysis in tomato (Solanum lycopersicum) fruits cultivated under drought conditions showed that drought stress promoted fatty acid synthesis and increased the content of fatty acids in fruits. The accumulation of some phospholipids composed of palmitic acid and oleic acid also was significantly increased, especially in seeds. Moreover, inositol, which is a component of cell membranes and cell walls, was increased through the activity of the myoinositol monophosphatase 1-mediated pathway. In mature fruits, the levels of metabolic regulators such as ß-alanine and 4-aminobutyric acid were elevated. These results showed that these compounds are drought-responsive and enhance drought tolerance and subsequently they could enhance the nutritional value and health benefits of tomato fruit.

Preparation of an Aroma Fraction from Dried Bonito by Steam Distillation and Its Effect on Modification of Salty and Umami Taste Qualities.

To study the effects of dried bonito aroma on taste perception, dried bonito aroma fraction (DBAF) as a steam distillate in liquid was added to the salt solutions containing 5 different salt concentrations (0.68% to 1.5% [w/v]) before sensory evaluations. Perception of the taste qualities of salt solutions with added DBAF varied depending on the salt concentration. At low salt concentrations (0.68% to 0.83%), after-taste intensity of saltiness and overall taste intensity were significantly enhanced by the addition of DBAF. This suggests that DBAF can be applied to a low-salt seasoning at these salt concentrations. Umami taste intensity was significantly enhanced by the addition of DBAF at all salt concentrations (0.68% to 1.5%). The addition of heat-treated DBAF, which no longer had the dried bonito odor, exerted no significant influences on any taste descriptors. As the result of gas chromatography-mass spectrometry analysis, sulfur-containing compounds, pyrazines, alcohols, and phenols were contained in DBAF and not detected in heat-treated DBAF. Because these compounds contributed to the dried bonito odor, the taste modifications were thought to be induced by these compounds. The effects of the DBAF on Japanese noodle soup (mentsuyu) were also examined. The saltiness intensity of 1.2% salt concentration of mentsuyu containing both DBAF and DBS (dried bonito stock) as a hot water extract of dried bonito was not significantly differ from that of 1.5% salt concentration of mentsuyu not containing any of them. It will thus be possible to develop a reduced salt seasoning by combining DBAF and DBS.

Psychosocial Strength Enhancing Resilience in Adolescents and Young Adults With Cancer.

The purpose of this study was to explore ways of enhancing psychosocial strengths in newly diagnosed and relapsed adolescents and young adults (AYAs) to improve their resilience. A descriptive case study was used. The adolescent resilience model (ARM) and the self-sustaining process model were applied as theories. The data were analyzed using pattern-matching logic. Semistructured interviews were conducted with 18 patients aged 12 to 24 years and discharged within 10 years. We found that the newly diagnosed and the relapsing AYAs developed the 5 strength factors of the ARM during and after treatment. Whether the individuals cultivated a positive attitude and sense of purpose early or late, the AYAs developed resilience eventually. A positive attitude and sense of purpose during the early phase of care may be essential for improving resilience. The AYAs benefited from the support of their parents, friends, and previous experience. Individualized support and social resources may be important to develop these strengths. Further research is needed to develop strengths and improve resilience in newly diagnosed AYAs.

Identification of bitterness-masking compounds from cheese.

Bitterness-masking compounds were identified in a natural white mold cheese. The oily fraction of the cheese was extracted and further fractionated by using silica gel column chromatography. The four fractions obtained were characterized by thin-layer chromatography and nuclear magnetic resonance spectroscopy. The fatty acid-containing fraction was found to have the highest bitterness-masking activity against quinine hydrochloride. Bitterness-masking activity was quantitated using a method based on subjective equivalents. At 0.5 mM, the fatty acid mixture, which had a composition similar to that of cheese, suppressed the bitterness of 0.008% quinine hydrochloride to be equivalent to that of 0.0049-0.0060% and 0.5 mM oleic acid to that of 0.0032-0.0038% solution. The binding potential between oleic acid and the bitter compounds was estimated by isothermal titration calorimetry. These results suggest that oleic acid masked bitterness by forming a complex with the bitter compounds.

How to improve resilience in adolescents with cancer in Japan.

This case study made use of semistructured interviews and a social network map to explore how adolescents with cancer develop resilience during the cancer experience. Seven adolescents with cancer aged 11 to 18 years and their mothers participated in this research. Pattern-matching logic using a 4-stage Self-Sustaining Process Model was applied to arrive at a comparative analysis. Findings indicated that initially, 5 adolescents who were told of their cancer diagnoses moved through the process during the cancer experience. Also, in newly diagnosed adolescents and in those who experienced relapse, a slight difference was noticed in terms of their response to studies and their hope levels. Second, 2 adolescents who were told of their diagnoses indirectly did not experience a complete passage through the phases comprising the process. Finally, the adolescents received social support from their families, friends, and relatives. This study suggests that an understanding of individual and cultural differences is important to improve resilience in adolescents with cancer. Because of the small sample surveyed by this research, further studies are needed to validate these conclusions and develop appropriate nursing intervention techniques.

Health education for nurses in Japan to combat child abuse.

A health education program for nurses was conducted to address the complex problem of child abuse, which has reached epidemic proportions. In Japan, the number of consultations has risen 23-fold over the past 11 years. Maltreatment of children is a public health problem as perilous as any contagious disease. The International Council of Nurses asks for nurses' leadership to strengthen measures to combat abuse throughout the world. The Japanese Nursing Association has published statements for prevention, detection and support. Yet, few community-based education programs with a multidisciplinary perspective have been reported that focus on nurses, the largest group of health providers. More than 200 nurse educators, clinicians and managers met for a one-day program designed to improve understanding of the nurses' role in combatting the abuse and neglect of children and to formulate action plans. This significant health problem is addressed in the context of a health education program's needs, objectives, content and evaluation.