PURPOSE To determine the neurometabolism of patients with active neuropsychiatric systemic lupus erythematosus (NPSLE) by using proton MR spectroscopy. METHODS Thirty-six patients with SLE and eight control subjects were studied with proton MR spectroscopy to measure brain metabolites. Peaks from N-acetylaspartate (NAA), creatine (Cr), choline (Cho), and at 1.3 parts per million (ppm) lipid, ...

BACKGROUND AND PURPOSE The diagnosis of gliomatosis cerebri with MR imaging is known to be difficult. We report on the value of MR spectroscopy in the diagnosis, grading, and biopsy planing in eight patients with histopathologically proved gliomatosis cerebri. METHODS Patients underwent MR imaging and MR spectroscopy (single-voxel point-resolved spectroscopy [PRESS] at 1500/135, and chemical-...

Polar auxin transport is a crucial process for control and coordination of plant development. Studies of auxin transport through plant tissues and organs showed that auxin is transported by a combination of phloem flow and the active, carrier-mediated cell-to-cell transport. Since plant organs and even tissues are too complex for determination of the kinetics of carrier-mediated auxin uptake an...

The treatments for ischemic stroke can only be administered in a narrow time-window. However, the ischemia onset time is unknown in ~30% of stroke patients (wake-up strokes). The objective of this study was to determine whether MR spectra of ischemic brains might allow the precise estimation of cerebral ischemia onset time. We modeled ischemic stroke in male ICR-CD1 mice using a permanent middl...

In this proton magnetic resonance spectroscopy ((1)H-MRS) study, the authors correlated cognitive improvement after 3 months of treatment with donepezil with changes of N-acetylaspartate (NAA) level and NAA/Creatine (Cr) ratio in the medial temporal and parietal lobe of 17 patients with Alzheimer disease. Treatment response was associated with an increase of NAA and NAA/Cr in the parietal lobe....

Introduction Dynamic C NMR spectroscopy combined with C label administration has been used to study brain metabolism non-invasively. N-acetyl aspartate (NAA) metabolism has been considered to be slow [1-3] and to have a similar turnover time as glycogen [3]. Most studies employed direct C detection to measure C label in NAA, with an additional external reference to calculate the isotopic enrich...

Dendrocalamus strictus popularly known as 'Male bamboo' is a multipurpose bamboo which is extensively utilized in pharmaceutical, paper, agricultural and other industrial implements. In this study, in vitro regeneration of D. strictus through nodal culture has been attempted. Murashige and Skoog's medium supplemented with 4 mg/l BAP was found to be most effective in shoot regeneration with 3.68...

Polar auxin transport is essential for the formation of continuous vascular strands in the plant body. To understand its mechanism, polar auxin transport inhibitors have often been used. However, the role of auxin in vascular differentiation at the unicellular level has remained elusive. Using a Zinnia elegans cell culture system, in which single mesophyll cells transdifferentiate into trachear...

ABSTRACT Physalis ixocarpa Brot. ex Horm. is considered the most economically important species of genus. Tissue culture pointed out as a strategy for its propagation, but researches indicate that in vitro responses are genotype-dependent. This study aimed to evaluate morphogenesis P. green and purple varieties, view massive propagation species. The morphogenic capacity explants cotyledonary no...

Accurate and early diagnosis of tuberculosis is a critical part of the management and control of the disease. Diagnostic work up for tuberculosis involves the detection of acid-fast bacilli in clinical samples by microscopy (smear) and culture. These conventional tests are not always helpful in making the diagnosis. Microscopy, although rapid and inexpensive, has only modest sensitivity and spe...