Polysaccharide-Containing Macromolecules in a Kampo (Traditional Japanese Herbal) Medicine, Hochuekkito: Dual Active Ingredients for Modulation of Immune Functions on Intestinal Peyer's Patches and Epithelial cells

A traditional Japanese herbal (Kampo) medicine, Hochuekkito (Bu-Zhong-Yi-Qi-Tang in Chinese, TJ-41) is a well-known Kampo formula, and has been found to enhance antigen-specific antibody response in not only local mucosal immune system in upper respiratory tract, but also systemic immune system through upper respiratory mucosal immune system. Although this immunopharmacological effect has been proposed to express by modulation of intestinal immune system including Peyer's patches and intestinal epithelial cells, active ingredients are not known. TJ-41 directly affected the production of bone marrow cell-proliferative growth factors from murine Peyer's patch immunocompetent cells in vitro. Among low molecular, intermediate size and macromolecular weight fractions prepared from TJ-41, only fraction containing macromolecular weight ingredients showed Peyer's patch-mediated bone marrow cell-proliferation enhancing activity. Anion-exchange chromatography and gel filtration gave 17 subfractions comprising polysaccharides and lignins from the macromolecular weight fraction of TJ-41, and some of the subfractions showed significant enhancing activities having different degrees. Some of the subfractions also expressed stimulating activity on G-CSF-production from colonic epithelial cells, and statistically significant positive correlation was observed among enhancing activities of the subfractions against Peyer's patch immunocompetent cells and epithelial cells. Among the fractions from TJ-41 oral administration of macromolecular weight ingredient fraction to mice succeeded to enhance antigen-specific antibody response in systemic immune system through upper respiratory mucosal immune system, but all the separated fractions failed to enhance the in vivo antibody response in upper respiratory tract

Development and validation of the short version of metacognitions questionnaire-Insomnia

Waine, Broomfield, Banham, & Espie (2009) developed and validated the Metacognitions Questionnaire-Insomnia (MCQ-I) to assess metacognition about sleep, which was hypothesized to have a two-factor structure consisting of metacognitive belief about sleep, and metacognitive plans about sleep. However, it is unclear if the MCQ-I reflects metacognition about sleep as hypothesized because no item analysis or factor analysis was conducted. The present study was designed to develop a short version of MCQ-I using selected items and investigate its reliability and validity. A cross-sectional survey using the MCQ-I was conducted with undergraduates (N=330) and 27 patients with chronic insomnia disorder. Results of factor analysis and item analysis of their responses indicated that MCQ-I has a two-factor structure as hypothesized, and 25 items had high internal consistency. Moreover, the MCQ-I-25 was correlated with metacognition about worry, comprehensive dimensions of cognitive arousal, and sleep disturbances. Furthermore, the MCQ-I-25 score was higher in insomnia patients than healthy students. These results suggest that MCQ-I-25 reflects metacognition about sleep and could predict cognitive arousal and insomnia

Lattice study of "f0_{0}(600) or σ\sigma"

We investigate the propagator of "f$_{0}$(600) or the $\sigma$" by the full-QCD simulation with Wilson fermions. We calculate the mesonic correlator in the I=0, $J^P=0^{+}$ channel on the $8^{3} \times 16$ lattice. Plaquet action and Wilson fermion action are adopted. A coupling constant $\beta$ is set to 4.8 and three kinds of hopping parameter, $\kappa$=0.1846, 0.1874 and 0.1891 are assayed. The disconnected diagram in the propagator is evaluated through taking average over 500 or 1000 Z2 noise. Simulations with the larger hopping parameter provide us with less noisy results. Though the statistics is not yet enough, our results indicate the existence of a pole with a mass in almost the same order as that of the $\rho$.Comment: Talk given at 20th International Symposium on Lattice Field Theory (LATTICE 2002), Boston, Massachusetts, 24-29 Jun 200

Low Dose Cytosine Arabinoside Regimen for Overt Leukemia, Hypoplastic Leukemia and Myelodysplastic Syndromes : Hypoplastic Leukemia Responds Best.

In a series of 38 patients consisting of 13 with overt acute leukemia, 14 with hypoplastic leukemia, and 11 with myelodysplastic asyndromes (MDS), responsiveness to low dose cytosine arabinoside (LDAC) regimen was investigated to clarify the disease type most benefitted. LDAC was continuously administered intravenously at dose 0.2mg/kg/day and continued as long as possible to meet the pre-assigned target point of 5% marrow blasts which was confirmed by weekly marrow aspiration. Overall response rate was 47%; complete remission (CR) being 31% and partial remission (PR) 16%. CR rate was significantly different between the disease types ; 69% in hypoplastic leukemia, 23% in overt leukemia and 0% in MDS (p=0.01). In hypoplastic leukemia the survival time was significantly longer in the LDAC-treated cases compared with 15 historical control cases treated with supportive care only ; median survial being 750 days in the former and 250 days in the latter (p=0.01). In overt leukemia only three M2 AML cases obtained CR ; two of them were treated during hypoplastic phase induced by intensive chemotherapy. All CR cases eventually achieved the target point after 20 to 42 days (median 26) of LDAC administration. Substantial toxicity of LDAC was evident, but most cases tolerated well. The present investigation suggests that hypoplastic leukemia is the disease type most sensitive to LDAC regimen. Stratification of the elderly leukemia patients should be considered for this regimen

Lattice Study of Low-lying Nonet Scalar Mesons in Quenched Approximation

Using lattice QCD simulation in the quenched approximation, we study the $\kappa$ meson, which is ^3P_0 in the quark model, and compare experimental and other lattice data. The $\kappa$ is the lowest scalar meson with strangeness and constitutes the scalar nonet. The obtained mass is much higher than the recent experimental value, and therefore the $\kappa(800)$ is difficult to consider as a simple two-body constituent-quark structure, and may have another unconventional structure.Comment: 11pages, 5figure