نتایج جستجو برای: تری متیل آلومینیوم tma
تعداد نتایج: 30946 فیلتر نتایج به سال:
در بخش اول این پایان نامه، آلومینیوم نیترید نانو برای تهیه سری جدیدی از 1،4- دی هیدروپیریدین ها استفاده شده است. یک روش موثر و ساده برای سنتز تک مرحله ای مشتقات 1،4- دی هیدروپیریدین از طریق تراکم آلومینیوم نیترید نانو (به عنوان منبع آمونیاک)، آلدهیدها و بنزیل-3-اکسوبوتانوات یا 2-متوکسی اتیل-3-اکسوبوتانوات آب بعنوان حلال و در دمای °c. 80معرفی شد. در بخش دیگر، ایزوکینولونیک اسیدها از طریق تراکم ...
توتون (Nicotianan tabacum) گیاهی صنعتی و یک ساله است که در شمال ایران برای تامین برگ آن جهت تولید تنباکو کاشت می شود و سالیانه مقادیر قابل ملاحظه ای ساقه توتون در شمال کشور تولید می شود. در این تحقیق ساقه توتون واریته کوکر347 به صورت کاملا تصادفی از منطقه گیلان، شهرستان آستارا تهیه گردید و طبق آزمون های استاندارد TAPPI ابتدا آرد چوب تهیه و سپس درصد مواد استخراجی آن تعیین گردید. نتایج این تحقیق ...
Hematopoietic stem cell transplant (HSCT)-associated thrombotic microangiopathy (TMA) is a complication that occurs in 25% to 35% of HSCT recipients and shares histomorphologic similarities with hemolytic uremic syndrome (HUS) and thrombotic thrombocytopenic purpura (TTP). The hallmark of all thrombotic microangiopathies is vascular endothelial cell injury of various origins, resulting in micro...
BACKGROUND In 1993 we presented age and sex specific estimates of cumulative constant tar cigarette consumption (CCTCC) per adult for five year periods to 1986-90. These were derived from annual surveys conducted for the Tobacco Manufacturers' Association (TMA) since 1946, extrapolated back to 1891 for men and to 1921 for women and corrected for the decline in average (machine smoked) tar level...
The diffusion parameters in rat cortex were studied 3-35 days following a cortical stab wound, using diffusion-weighted MR to determine the apparent diffusion coefficient of water (ADC(W)) in the tissue, and the real-time iontophoretic tetramethylammonium (TMA) method to measure the extracellular space (ECS) diffusion parameters: ECS volume fraction alpha and the ADC of TMA(+) (ADC(TMA)). Sever...
This study compared two assays for Trichomonas vaginalis detection, Gen-Probe's transcription-mediated amplification (TMA) assay for Trichomonas vaginalis and BTUB FRET PCR, using self-obtained clinical samples from 611 patients. Infection status was defined as two positive results by two different tests. The initial TMA assay sensitivity was 96.7%; specificity was 97.5%. The TMA assay was comp...
OBJECTIVE This review aimed to summarize the relationship between intestinal microbiota metabolism and cardiovascular disease (CVD) and to propose a novel CVD therapeutic target. DATA SOURCES This study was based on data obtained from PubMed and EMBASE up to June 30, 2015. Articles were selected using the following search terms: "Intestinal microbiota", "trimethylamine N-oxide (TMAO)", "trime...
BACKGROUND AND OBJECTIVES Complement alternative pathway (cAP) activation has recently been recognized as a key pathogenic event in ANCA-associated vasculitis (AAV). cAP dysregulation is also a major determinant of thrombotic microangiopathies (TMA), which can in turn complicate AAV. We explored the prognostic significance of cAP activation and of histologic evidence of TMA in a cohort of patie...
Chronic inflammatory response in the airway tract of patients affected by cystic fibrosis is characterized by an excessive recruitment of neutrophils to the bronchial lumina, driven by the chemokine interleukin (IL)-8. We previously found that 5-methoxypsoralen reduces Pseudomonas aeruginosa-dependent IL-8 transcription in bronchial epithelial cell lines, with an IC(50) of 10 μM (Nicolis E, Lam...
BACKGROUND Trimethylamine (TMA), produced by the gut microbiota from dietary quaternary amines (mainly choline and carnitine), is associated with atherosclerosis and severe cardiovascular disease. Currently, little information on the composition of TMA producers in the gut is available due to their low abundance and the requirement of specific functional-based detection methods as many taxa sho...
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