220 research outputs found

    Far-infrared rays control prostate cancer cells _in vitro_ and _in vivo_

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    We introduce a new effective method to control hormone refractory prostate cancer cells by using an activated rubber/resin form (RB), far-infrared ray emitter, with or without sodium butyrate (SB). The growth of three human prostate cancer cell lines (Du145, PC-3 and LNCaP) was suppressed _in vitro_ and _in vivo_ by using RB, and the cells were eradicated with RB + 3 mM SB. G1 arrest and apoptotic pathway proteins were induced by RB with intensified expressions of apoptosis - related mRNA on cDNA microarray. RB radiates the infra-red rays of the 4 to 25 [mu]m wavelengths to an object which exert a favorable influence on a cancer control. These results may render us a new therapeutic modality in hormone refractory prostate cancer

    Distance to G14.33-0.64 in the Sagittarius Spiral Arm: H2O Maser Trigonometric Parallax with VERA

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    We report on trigonometric parallax measurements for the Galactic star forming region G14.33-0.64 toward the Sagittarius spiral arm. We conducted multi-epoch phase-referencing observations of an H2O maser source in G14.33-0.64 with the Japanese VLBI array VERA. We successfully detected a parallax of 0.893+/-0.101 mas, corresponding to a source distance of 1.12+/-0.13 kpc, which is less than half of the kinematic distance for G14.33-0.64. Our new distance measurement demonstrates that the Sagittarius arm lies at a closer distance of ~1 kpc, instead of previously assumed ~2-3 kpc from kinematic distances. The previously suggested deviation of the Sagittarius arm toward the Galactic center from the symmetrically fitted model (Taylor & Cordes 1993) is likely due to large errors of kinematic distances at low galactic longitudes. G14.33-0.64 most likely traces the near side of the Sagittarius arm. We attempted fitting the pitch angle of the arm with other parallax measurements along the arm, which yielded two possible pitch angles of i=34.7+/-2.7 degrees and i=11.2+/-10.5 degrees. Our proper motion measurements suggest G14.33-0.64 has no significant peculiar motion relative to the differential rotation of the Galaxy (assumed to be in a circular orbit), indicating that the source motion is in good agreement with the Galactic rotation.Comment: 14 pages, 7 figures, to appear in PASJ Vol. 62, No.

    Health insurance system and payments provided to patients for the management of severe acute pancreatitis in Japan

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    The health insurance system in Japan is based upon the Universal Medical Care Insurance System, which gives all citizens the right to join an insurance scheme of their own choice, as guaranteed by the provisions of Article 25 of the Constitution of Japan, which states: “All people shall have the right to maintain the minimum standards of wholesome and cultured living.” The health care system in Japan includes national medical insurance, nursing care for the elderly, and government payments for the treatment of intractable diseases. Medical insurance provisions are handled by Employee’s Health Insurance (Social Insurance), which mainly covers employees of private companies and their families, and by National Health Insurance, which provides for the needs of self-employed people. Both schemes have their own medical care service programs for retired persons and their families. The health care system for the elderly covers people 75 years of age and over and bedridden people 65 years of age and over. There is also a system under which the government pays all or part of medical expenses, and/or pays medical expenses not covered by insurance. This is referred to collectively as the “medical expenses payment system” and includes the provision of medical assistance for specified intractable diseases. Because severe acute pancreatitis has a high mortality rate, it is specified as an intractable disease. In order to lower the mortality rate of various diseases, including severe acute pancreatitis, the specification system has been adopted by the government. The cost of treatment for severe acute pancreatitis is paid in full by the government from the date the application is made for a certificate verifying that the patient has an intractable disease

    Lower FEV1 in non-COPD, nonasthmatic subjects: association with smoking, annual decline in FEV1, total IgE levels, and TSLP genotypes

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    Few studies have investigated the significance of decreased FEV1 in non-COPD, nonasthmatic healthy subjects. We hypothesized that a lower FEV1 in these subjects is a potential marker of an increased susceptibility to obstructive lung disease such as asthma and COPD. This was a cross-sectional analysis of 1505 Japanese adults. We divided the population of healthy adults with no respiratory diseases whose FEV1/FVC ratio was ≥70% (n = 1369) into 2 groups according to their prebronchodilator FEV1 (% predicted) measurements: <80% (n = 217) and ≥80% (n = 1152). We compared clinical data – including gender, age, smoking habits, total IgE levels, and annual decline of FEV1 – between these 2 groups. In addition, as our group recently found that TSLP variants are associated with asthma and reduced lung function, we assessed whether TSLP single nucleotide polymorphisms (SNPs) were associated with baseline lung function in non-COPD, nonasthmatic healthy subjects (n = 1368). Although about half of the subjects with lower FEV1 had never smoked, smoking was the main risk factor for the decreased FEV1 in non-COPD, nonasthmatic subjects. However, the subjects with lower FEV1 had a significantly higher annual decline in FEV1 independent of smoking status. Airflow obstruction was associated with increased levels of total serum IgE (P = 0.029) and with 2 functional TSLP SNPs (corrected P = 0.027–0.058 for FEV1% predicted, corrected P = 0.015–0.033 for FEV1/FVC). This study highlights the importance of early recognition of a decreased FEV1 in healthy subjects without evident pulmonary diseases because it predicts a rapid decline in FEV1 irrespective of smoking status. Our series of studies identified TSLP variants as a potential susceptibility locus to asthma and to lower lung function in non-COPD, nonasthmatic healthy subjects, which may support the contention that genetic determinants of lung function influence susceptibility to asthma

    Management strategy for acute pancreatitis in the JPN Guidelines

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    The diagnosis of acute pancreatitis is based on the following findings: (1) acute attacks of abdominal pain and tenderness in the epigastric region, (2) elevated blood levels of pancreatic enzymes, and (3) abnormal diagnostic imaging findings in the pancreas associated with acute pancreatitis. In Japan, in accordance with criteria established by the Japanese Ministry of Health, Labour, and Welfare, the severity of acute pancreatitis is assessed based on the clinical signs, hematological findings, and imaging findings, including abdominal contrast-enhanced computed tomography (CT) and magnetic resonance imaging (MRI). Severity must be re-evaluated, especially in the period 24 to 48 h after the onset of acute pancreatitis, because even cases diagnosed as mild or moderate in the early stage may rapidly progress to severe. Management is selected according to the severity of acute pancreatitis, but it is imperative that an adequate infusion volume, vital-sign monitoring, and pain relief be instituted immediately after diagnosis in every patient. Patients with severe cases are treated with broad-spectrum antimicrobial agents, a continuous high-dose protease inhibitor, and continuous intraarterial infusion of protease inhibitors and antimicrobial agents; continuous hemodiafiltration may also be used to manage patients with severe cases. Whenever possible, transjejunal enteral nutrition should be administered, even in patients with severe cases, because it seems to decrease morbidity. Necrosectomy is performed when necrotizing pancreatitis is complicated by infection. In this case, continuous closed lavage or open drainage (planned necrosectomy) should be the selected procedure. Pancreatic abscesses are treated by surgical or percutaneous drainage. Emergency endoscopic procedures are given priority over other methods of management in patients with acute gallstone-associated pancreatitis, patients suspected of having bile duct obstruction, and patients with acute gallstone pancreatitis complicated by cholangitis. These strategies for the management of acute pancreatitis are shown in the algorithm in this article

    C-glycosyl flavones and a comparative study of the antioxidant, hemolytic and toxic potential of Jatropha multifida leaves and bark

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    The ethyl acetate extract from Jatropha multifida (Euphorbiaceae) leaves yielded two C-glycosyl flavones. Their structures were elucidated through spectroscopic methods, including UV, IR, 1D and 2D NMR, and compared with the related known compounds. The structures of the two flavonoids were determined as Vitexin (1) and Isovitexin (2). The ethanol extracts of leaves and bark and their fractions did not interfere in the integrity of erythrocytes, not even 1 and 2. In the Brine shrimp lethality method, bark extracts showed greater toxic potential than the leaf extracts. Both flavonoids are not toxic. The Phosphomolybdenum and DPPH assays were used in order to investigate the antioxidant activity of both compounds and fractions of leaf and bark extracts. The ethyl acetate fraction of bark showed excellent activity, with IC50 17.23 μg/mL-1, equivalent to the standard values, Vitamin C and Rutin. Compounds 1 - 2 demonstrated good activity with IC50 values of 54.37 and 87.27μg/mL-1.  In the Phosphomolybdenum test, the ethyl acetate fraction of bark showed 86.18% of antioxidant activity compared with Rutin, and the chloroform fraction of leaves, 103.29%. In all tests the bark extracts were more bioactive than the leaf extracts

    C-glycosyl flavones and a comparative study of the antioxidant, hemolytic and toxic potential of Jatropha multifida leaves and bark

    Get PDF
    The ethyl acetate extract from Jatropha multifida (Euphorbiaceae) leaves yielded two C-glycosyl flavones. Their structures were elucidated through spectroscopic methods, including UV, IR, 1D and 2D NMR, and compared with the related known compounds. The structures of the two flavonoids were determined as Vitexin (1) and Isovitexin (2). The ethanol extracts of leaves and bark and their fractions did not interfere in the integrity of erythrocytes, not even 1 and 2. In the Brine shrimp lethality method, bark extracts showed greater toxic potential than the leaf extracts. Both flavonoids are not toxic. The Phosphomolybdenum and DPPH assays were used in order to investigate the antioxidant activity of both compounds and fractions of leaf and bark extracts. The ethyl acetate fraction of bark showed excellent activity, with IC50 17.23 μg/mL-1, equivalent to the standard values, Vitamin C and Rutin. Compounds 1 - 2 demonstrated good activity with IC50 values of 54.37 and 87.27μg/mL-1.  In the Phosphomolybdenum test, the ethyl acetate fraction of bark showed 86.18% of antioxidant activity compared with Rutin, and the chloroform fraction of leaves, 103.29%. In all tests the bark extracts were more bioactive than the leaf extracts

    Variants at HLA-A , HLA-C , and HLA-DQB1 Confer Risk of Psoriasis Vulgaris in Japanese

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    Psoriasis vulgaris (PsV) is an autoimmune disease of skin and joints with heterogeneity in epidemiologic and genetic landscapes of global populations. We conducted an initial genome-wide association study and a replication study of PsV in the Japanese population (606 PsV cases and 2,052 controls). We identified significant associations of the single nucleotide polymorphisms with PsV risk at TNFAIP3-interacting protein 1and the major histocompatibility complex region (P = 3.7 × 10−10 and 6.6 × 10−15, respectively). By updating the HLA imputation reference panel of Japanese (n = 908) to expand HLA gene coverage, we fine-mapped the HLA variants associated with PsV risk. Although we confirmed the PsV risk of HLA-C*06:02 (odds ratio = 6.36, P = 0.0015), its impact was relatively small compared with those in other populations due to rare allele frequency in Japanese (0.4% in controls). Alternatively, HLA-A*02:07, which corresponds to the cysteine residue at HLA-A amino acid position 99 (HLA-A Cys99), demonstrated the most significant association with PsV (odds ratio = 4.61, P = 1.2 × 10–10). In addition to HLA-A*02:07 and HLA-C*06:02, stepwise conditional analysis identified an independent PsV risk of HLA-DQβ1 Asp57 (odds ratio = 2.19, P = 1.9 × 10–6). Our PsV genome-wide association study in Japanese highlighted the genetic architecture of PsV, including the identification of HLA risk variants
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