Midazolam suppresses interleukin-1β-induced interleukin-6 release from rat glial cells

<p>Abstract</p> <p>Background</p> <p>Peripheral-type benzodiazepine receptor (PBR) expression levels are low in normal human brain, but their levels increase in inflammation, brain injury, neurodegenerative states and gliomas. It has been reported that PBR functions as an immunomodulator. The mechanisms of action of midazolam, a benzodiazepine, in the immune system in the CNS remain to be fully elucidated. We previously reported that interleukin (IL)-1β stimulates IL-6 synthesis from rat C6 glioma cells and that IL-1β induces phosphorylation of inhibitory kappa B (IκB), p38 mitogen-activated protein (MAP) kinase, stress-activated protein kinase (SAPK)/c-<it>Jun </it>N-terminal kinase (JNK), extracellular signal-regulated kinase 1/2, and signal transducer and activator of transcription (STAT)3. It has been shown that p38 MAP kinase is involved in IL-1β-induced IL-6 release from these cells. In the present study, we investigated the effect of midazolam on IL-1β-induced IL-6 release from C6 cells, and the mechanisms of this effect.</p> <p>Methods</p> <p>Cultured C6 cells were stimulated by IL-1β. IL-6 release from C6 cells was measured using an enzyme-linked immunosorbent assay, and phosphorylation of IκB, the MAP kinase superfamily, and STAT3 was analyzed by Western blotting.</p> <p>Results</p> <p>Midazolam, but not propofol, inhibited IL-1β-stimulated IL-6 release from C6 cells. The IL-1β-stimulated levels of IL-6 were suppressed by wedelolactone (an inhibitor of IκB kinase), SP600125 (an inhibitor of SAPK/JNK), and JAK inhibitor I (an inhibitor of JAK 1, 2 and 3). However, IL-6 levels were not affected by PD98059 (an inhibitor of MEK1/2). Midazolam markedly suppressed IL-1β-stimulated STAT3 phosphorylation without affecting the phosphorylation of p38 MAP kinase, SAPK/JNK or IκB.</p> <p>Conclusion</p> <p>These results strongly suggest that midazolam inhibits IL-1β-induced IL-6 release in rat C6 glioma cells via suppression of STAT3 activation. Midazolam may affect immune system function in the CNS.</p

Simultaneous Screening of 24 Target Genes of Foodborne Pathogens in 35 Foodborne Outbreaks Using Multiplex Real-Time SYBR Green PCR Analysis

A set of 8 multiplex real-time SYBR Green PCR (SG-PCR) assays including 3 target primers and an internal amplification control (IAC) primer was simultaneously evaluated in 3 h or less with regard to detection of 24 target genes of 23 foodborne pathogens in 7 stool specimens of foodborne outbreak using a 96-well reaction plate. This assay, combined with DNA extraction (QIAamp DNA Stool Mini kit), offered detection of greater than 103-104 foodborne pathogens per g in stool specimens. The products formed were identified using melting point temperature (Tm) curve analysis. This assay was evaluated for the detection of foodborne pathogens in 33 out of 35 cases of foodborne outbreak, using 4 different PCR instruments in 5 different laboratories. No interference from the multiplex real-time SG-PCR assay, including IAC, was observed in stool specimens in any analysis. We found multiplex real-time SG-PCR assay for simultaneous detection of 24 target genes of foodborne pathogens to be comprehensive, rapid, inexpensive, accurate, of high selectivity, and good for screening probability

Plasma S100A12 Levels and Peripheral Arterial Disease in End-Stage Renal Disease

Background: S100A12 is an endogenous ligand of the receptor for advanced glycation end products (RAGE). Plasma S100A12 levels are high in end-stage renal disease (ESRD) patients undergoing maintenance hemodialysis (HD). Peripheral arterial disease (PAD) is common in HD patients and is associated with increased cardiovascular morbidity and mortality rates in this population. To date, however, no study has specifically assessed the relationship between plasma S100A12 and PAD in HD patients. Methods: We conducted a cross-sectional study of 152 HD patients in our affiliated hospital. We investigated PAD history and patient characteristics and quantified plasma S100A12 levels in all participants. Results: HD patients with PAD (n = 26; 21.9 [13.6–33.4] ng/ml) showed significantly higher plasma S100A12 levels than HD patients without PAD (n = 126; 11.8 [7.5–17.6]ng/ml; p Conclusion: These results suggest that plasma S100A12 levels are strongly associated with PAD prevalence in ESRD patients undergoing HD

Solitary Peutz-Jeghers type hamartomatous polyps in the duodenum are not always associated with a low risk of cancer: two case reports

INTRODUCTION: A hamartomatous polyp without associated mucocutaneous pigmentation or a family history of Peutz-Jeghers Syndrome is diagnosed as a solitary Peutz-Jeghers type hamartomatous polyp. As compared with Peutz-Jeghers Syndrome, Peutz-Jeghers type hamartomatous polyps are diagnosed with a lower risk of cancer and are regarded as a different disorder. CASE PRESENTATION: In case one, we describe an 84-year-old Japanese man with a 14 mm duodenal polyp. Endoscopic mucosal resection was performed and histological examination showed findings suggestive of a hamartomatous polyp with a focus of well-differentiated adenocarcinoma. In case two, we describe a 76-year-old Japanese man who had been treated for prostate, rectal and lung cancer. Upper gastrointestinal endoscopy revealed a duodenal polyp measuring 15 mm in diameter. Endoscopic mucosal resection was performed, and histological examination showed findings suggestive of a hamartomatous polyp. Liver and thyroid cancers were found after the endoscopic treatment. CONCLUSION: Although duodenal solitary hamartomatous polyps are associated with a lower risk of cancer, four patients, including our cases, have been diagnosed with cancerous polyps. Patients with duodenal solitary hamartomatous polyps should be treated by endoscopic or surgical resection and need whole-body screening

地域包括ケアシステムにおける訪問看護ステーションの経営状況と事業所特性及び地域特性，経営管理との関連―全国と群馬県の比較―

目的：全国及び群馬県の訪問看護ステーション（以下，ST）の経営状況と事業所特性及び地域特性，経営管理との関連を明らかにし，比較検討する． 方法：全国2,000人及び群馬県163人のST管理者を対象とし，自記式質問紙調査を実施した．有効回答は全国473人，群馬県55人で，経営状況と各項目との関連はχ2検定及びKruskal-Wallis検定を，さらに経営状況を目的変数とするロジスティック回帰分析を行った． 結果：全国では，看護師常勤・看護師非常勤・事務職員非常勤の従業者数，1人1日平均訪問回数，北海道・東北地域，収支のモニタリングが黒字に関連していた．群馬県では関連がみられず，全国に比して赤字のST割合が多く，経営管理の得点が低かった． 結論：経営状況の改善には，ST規模の拡大やST管理者の収支のモニタリングに焦点を当てた行動の有効性が示唆された．群馬県では，経営管理に関する分析の強化が必要である．Objectives: The financial status of home-visit nursing stations (STs) was analyzed in relation to business office characteristics, local community characteristics and business management, and the results between Gunma Prefecture and all prefectures in Japan were compared. Methods: A self-administered questionnaire survey was completed by 163 ST managers in Gunma Prefecture and 2000 ST managers from all over Japan. Valid responses were collected from 55 managers from Gunma Prefecture and 473 managers from all over Japan. The association between management status with each variable was analyzed by the chisquare test and Kruskal-Wallis test. In addition, logistic regression analysis was carried out with the status of management as the dependent variable. Results: For STs all prefectures in Japan, profitable business (black-ink balance) was associated with the number of employees (full-time nurses, part-time nurses and part-time clerical staff), the mean number of care receiver homes visited daily by each nurse, the district (Hokkaido/Tohoku) and revenue/expenditure balance monitoring. In Gunma Prefecture, the percentage of red-ink operation STs was higher and the score for business management was lower than in all prefectures in Japan. Conclusions: These results suggest that management actions focusing on expansion of the scale of STs and on revenue/ expenditure balance monitoring by ST managers are effective in improving the status of management. In Gunma Prefecture, reinforcement of how to analyze business management is needed.原

チイキ ショウラ イヨソク ニ オケル コウレイシャ ジンコウ ト ヨウカイゴ ジンコウ ニ カンスル イチ コウサツ:チョウチョウ ベツ セグメント ノ ブンルイ オ チュウシン トシテ

わが国の少子高齢化が叫ばれて久しい。身近な地域における少子高齢化や要介護者の増加は経済や社会に様々な変化をもたらし、われわれの生活にとって考慮する必要がある。本稿はこれまでの都道府県や市町村よりも詳細な町丁別単位(町丁別セグメント)を取り上げ、将来人口を予測することを目的としている。また町丁別セグメントの性質を分析することによって、高齢化や要介護者などの傾向を考慮するための基盤を形成しようとする試みである。特に本稿では千葉市若葉区の町丁別セグメントを取り上げ、上記の分析を実施するとともに、町丁別セグメントの将来人口、高齢化率、要介護率について考察する。 町丁別セグメントを4類型に分類し、各類型の将来人口や高齢化率・要介護率を考慮することによって、入手可能なデータから適切な精度を持つ将来予測を行なうことができる。また各類型を対象とした政策形成の際の基盤を形成することが可能になると考えられる。We have some problems in a declining birthrate and an increasing elderly population. Because economy and society change in near area, we must consider these problems. In this thesis, we consider town segments and predict their future population. We analyze the property of town segments and trend of the increasing elderly population and population requiring care. We research town segments in the Wakaba ward of Chiba City and discuss the trend of the increasing elderly population and population requiring care. We classify town segments into 4 categories and consider future population, an increasing rate of elderly population and population requiring care. We predict future population from the restricted data in some accuracy. We help the policy making by using these 4 categories