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611.
Raf Brouns Bart Marescau Ilse Possemiers Rishi Sheorajpanday Peter P. De Deyn 《Neurochemical research》2009,34(9):1642-1649
We hypothesise that asymmetric and symmetric dimethylarginine (ADMA, SDMA) are released in cerebrospinal fluid (CSF) due to
ischemia-induced proteolysis and that CSF dimethylarginines are related to stroke severity. ADMA and SDMA were measured in
CSF of 88 patients with ischemic stroke or TIA within 24 h after stroke onset (mean 8.6 h) and in 24 controls. Stroke severity
was assessed by the National Institutes of Health Stroke Scale (NIHSS) score at admission. Outcome was evaluated by institutionalization
due to stroke and the modified Rankin scale. Dimethylarginine levels were higher in patients with stroke than in TIA patients,
who had higher levels than controls and correlated with the NIHSS. Logistic regression analysis confirmed that dimethylarginines
were independently associated with stroke severity. The SDMA/ADMA ratio did not differ significantly between controls and
stroke patients. CSF dimethylarginine levels are increased in hyperacute ischemic stroke and are associated with stroke severity.
R. Brouns is a research assistant of the Fund for Scientific research Flanders (FWO-Vlaanderen). 相似文献
612.
613.
Aquillochin, isolated from the whole plant of Aquilaria agallocha, has been shown to be a coumarinolignan, and a structure has been proposed on the basis of chemical and physical studies. 相似文献
614.
615.
Area postrema is rich in angiotensin II receptors and intravenous (iv) administration of angiotensin II has been reported to elicit emesis. However, in the present study intracerebroventricular (icv) administration of angiotensin II up to a dose of 10 micrograms failed to elicit emesis. It is suggested that presence of a cerebrospinal fluid-brain barrier in area postrema most probably prevents access of icv angiotensin II to its receptors which are otherwise accessible on iv administration. 相似文献
616.
Ten strains ofRhizobium sp. with multiple antibiotic resistance markers were used for competitive and ef ficiency studies with mung bean var. ML
5. All the strains showed significant increase in grain yield and so also for nitrogenase activity except MO 5. Nitrogenase
activity correlated very well with grain yeild. The compatibility of strains varied from 17 to 50%. The intrinsic multiple
antibiotic markers for strain identification were found to be stable after passing through soil and host conditions and could
be used for ecological studies. It was further revealed that the overall efficiency of a strain is the combined effect of
characters like compatability, competitiveness and inherent capacity to fix nitrogen. 相似文献
617.
618.
Food Biophysics - This study was aimed at investigating the effect of novel ultrasonic-microwave combined pretreatment on the three-dimensional (3D) printing quality of wheat starch-papaya system.... 相似文献
619.
Anand Bhandari Krzysztof Izdebski Cindy Huang Yuling Yan 《Biomedical signal processing and control》2012,7(1):20-26
Vocal fold (VF) activity in sustained phonation captured through simultaneous visual observations via direct method (high speed digital imaging: HSDI) and via indirect electroglottographic (EGG) method in normal population were submitted to contrastive analysis. The quantitative parameters used to describe the dynamic properties of the VF vibration included open/closed quotients, and indices that we defined as harmonic ratios. Our analysis also included a Nyquist plot approach that we introduced previously. Results indicate that EGG tracings delivered useful results for the analysis of normal voices and derived a reasonably accurate open quotient value in comparison to the visual analysis. Moreover, recognizable Nyquist plot patterns were obtained for EGG tracings although not identical to that obtained from the HSDI-derived glottal area waveform. Therefore ipso-facto we evaluate the usefulness of EGG compared to visual data in describing specific voice characteristics of normal speakers. 相似文献
620.