Methanol and Butanol Extracts of Paeonia lutea

Squamous cell carcinoma (SCC) is one of the most common cancers of the head and neck region worldwide and is generally treated surgically in combination with radiotherapy and/or chemotherapy. However, anticancer agents have numerous serious side effects, and alternative, less toxic agents that are effective as chemotherapeutics for SCC are required. The Paeoniaceae family is widely used in traditional Chinese medicine. We examined methanol and butanol extracts of Paeonia lutea (P. lutea) leaves for their potential as an anticancer agent. Both extracts decreased the proliferation of SCC cells, induced apoptotic cell death, and modulated migration, adhesion, chemotaxis, and haptotaxis in an extracellular matrix- (ECM-) dependent manner due to altered expression of several integrin subunits. Subsequently, SCC cells were subcutaneously transplanted into athymic nude mice; the extracts reduced the metastasis of SCC cells but had little effect on the volume of the primary tumor or survival or body weight of the mice. The results suggest that the extracts may hold promise for preventing cancer metastasis

Development of hydroxyapatite-coated nonwovens for efficient isolation of somatic stem cells from adipose tissues

Adipose-derived stem cells (ASCs) are an attractive cell source for cell therapy. Despite the increasing number of clinical applications, the methodology for ASC isolation is not optimized for every individual. In this study, we developed an effective material to stabilize explant cultures from small-fragment adipose tissues. Methods: Polypropylene/polyethylene nonwoven sheets were coated with hydroxyapatite (HA) particles. Adipose fragments were then placed on these sheets, and their ability to trap tissue was monitored during explant culture. The yield and properties of the cells were compared to those of cells isolated by conventional collagenase digestion. Results: Hydroxyapatite-coated nonwovens immediately trapped adipose fragments when placed on the sheets. The adhesion was stable even in culture media, leading to cell migration and proliferation from the tissue along with the nonwoven fibers. A higher fiber density further enhanced cell growth. Although cells on nonwoven explants could not be fully collected with cell dissociation enzymes, the cell yield was significantly higher than that of conventional monolayer culture without impacting stem cell properties. Conclusions: Hydroxyapatite-coated nonwovens are useful for the effective primary explant culture of connective tissues without enzymatic cell dissociation

Serum anti-aquaporin-4 antibody-positive neuromyelitis optica spectrum disorder presenting as acute eosinophilic encephalomyelitis

金沢大学附属病院神経内科We report the case of a 57-year-old man with neuromyelitis optica spectrum disorder (NMOSD) presenting as acute eosinophilic encephalomyelitis. Magnetic resonance imaging revealed central nervous system lesions typical of NMOSD and anti-aquaporin-4 antibodies in the serum were identified; however, eosinophilia was evident in the cerebrospinal fluid (CSF) at the early stage of the disease. The number of eosinophils in the CSF decreased subsequently. Although activation of eosinophils is known to be an important factor in the development of NMOSD lesions, prominent eosinophilia in the CSF at the early stage of the disease has never been reported in patients with NMOSD. © 2017 Elsevier Ltd.Embargo Period 12 month

ボランティア活動が保育者を目指す学生の自己教育力に及ぼす影響 : 東日本大震災復興支援ボランティア活動に参加して

本研究の目的は,ボランティア活動が保育者を目指す学生の自己教育力におよぼす影響を明らかにすることを目的とした。この目的を達成するために,ボランティア前後で自己教育力尺度を用いて測定した。その結果,課題意識得点,主体的思考得点,自己評価得点が有意にボランティア前より向上したが,学習の仕方得点,計画性得点,自主性得点,自己実現得点に関しては,有意な差異は認められなかった。このことから,ボランティア活動に参加することで,内在的な学習効果を促進させたことが示唆された。しかし,短期間のボランティア活動であったため,今後,継続的なボランティア活動を遂行することでの影響を検討する必要性がある

Two Aldehyde Clearance Systems Are Essential to Prevent Lethal Formaldehyde Accumulation in Mice and Humans.

Reactive aldehydes arise as by-products of metabolism and are normally cleared by multiple families of enzymes. We find that mice lacking two aldehyde detoxifying enzymes, mitochondrial ALDH2 and cytoplasmic ADH5, have greatly shortened lifespans and develop leukemia. Hematopoiesis is disrupted profoundly, with a reduction of hematopoietic stem cells and common lymphoid progenitors causing a severely depleted acquired immune system. We show that formaldehyde is a common substrate of ALDH2 and ADH5 and establish methods to quantify elevated blood formaldehyde and formaldehyde-DNA adducts in tissues. Bone-marrow-derived progenitors actively engage DNA repair but also imprint a formaldehyde-driven mutation signature similar to aging-associated human cancer mutation signatures. Furthermore, we identify analogous genetic defects in children causing a previously uncharacterized inherited bone marrow failure and pre-leukemic syndrome. Endogenous formaldehyde clearance alone is therefore critical for hematopoiesis and in limiting mutagenesis in somatic tissues

Enhancement of Zinc Ion Removal from Water by Physically Mixed Particles of Iron/Iron Sulfide

Zinc (Zn) removal by physically mixed particles of zero-valent iron (Fe) and iron sulfide (FeS) was investigated as one technology for Zn removal from waste groundwater. The effects of the Fe/FeS mass ratio, including a single Fe and FeS particles, and pH on changes in the concentrations of Zn, Fe, and S were examined by a batch test and column tests, and the mechanism of Zn elimination was discussed. Among all the mixing fractions of Fe and FeS, Zn was eliminated most effectively by 3Fe/7FeS (mass ratio of Fe/FeS = 3/7). The Zn removal rate decreased in the order of 3Fe/7FeS, FeS, and Fe, whereas the Fe concentration decreased in the order of Fe, FeS, and 3Fe/7FeS. The S concentration of FeS was larger than that of 3Fe/7FeS. The Zn removal rate by physically mixed 3Fe/7FeS particles was enhanced by a local cell reaction between the Fe and FeS particles. The electrons caused by Fe corrosion moved to the FeS surface and reduced the dissolved oxygen in the solution. Zn2+, Fe2+, and OH− ions in the solution were then coprecipitated on the particles as ZnFe2(OH)6 and oxidized to ZnFe2O4. Moreover, Zn2+ was sulfurized as ZnS by both the Fe/FeS mixture and the simple FeS particles. The Zn removal rate increased with increasing pH in the range from pH 3 to 7. From a kinetic analysis of Zn removal, the rate constant of anode (Fe)/cathode (FeS) reaction was almost the same as that of ZnS formation and slightly larger than that of Fe alone

Impact of the elder abuse prevention and caregiver support law on system development among municipal governments in Japan

Objectives Japan enacted the elder abuse law in April 2006. The present study was aimed to examine the progress of systems development and difficulties with implementing activities in municipal governments for dealing with elder abuse after the law.Methods Between 11 and 22 December 2006 a paper questionnaire was sent to all 1840 Japanese municipalities and received 917 responses (49.8%). The municipalities were divided into three groups according the number of elder abuse management activities they had implemented: an advanced group (N = 257), a middle group (N = 348), and a less advanced group (N = 312).Results The law increased the implementation of activities related to reporting systems (46.2-49.1%) and activities for increasing awareness of elder abuse among service providers (30.7-35.8%). The most frequent activities with no plans for implementation were the establishment of intervention teams (43.7-55.5%) and multi-agency networks (47.7-64.2%). All groups reported difficulties carrying out home visits to investigate reported cases of abuse (53.6-61.5%) and difficulties approaching reported cases where there was resistance to outside support (42.4-76.6%).Conclusions The law was significant step in activities related to reporting systems and activities for increasing awareness among service providers. Further policy should address how to establish intervention teams and multi-agency networks, how to carry out home visits to investigate reports, and how to approach cases resistant to outside support.Elder abuse Health policy Japan Municipal government

Population Dynamics of Crenarchaeota and Euryarchaeota in the Mixing Front of River and Marine Waters

A transect from the Tomoe River Mouth through Shimizu Port to Suruga Bay, Japan, was examined between 2005 and 2009 to reveal the population dynamics of Crenarchaeota and Euryarchaeota in an estuary environment. Crenarchaeota tended to increase in abundance in waters deeper than 100 m compared with Euryarchaeota, and comprised 11% of total direct counts. Archaeal abundance was highest in the Tomoe River Mouth, with a strong negative correlation between surface euryarchaeal abundance and salinity (P<0.001). The diversity index for the phylotypic archaeal community in the mouth was three times higher than that at sites St1-1m and St1-10m in the estuary, and OTUs represented most of the OTU groups at the sites. Three of the seven total OTUs, which comprised 83.6% of the 140 sequenced clones in the estuary, were related to the OTUs in the mouth with similarities higher than 97%. A significant proportion of the archaeal community appears to be derived from the Tomoe River. The two dominant phylotypes of the archaeal community in Shimizu Port, belonging to MGI and MGII, occurred ubiquitously.publishe