Neuroglial tumors contain both neuronal and glial elements and are the slowest growing CNS tumors, we report our experience in MR proton single voxel and CSI spectroscopy in 6 neuroglial tumors: gangliocytoma(1), gangliogliomas(4) and DIG(1), all classified as favorable low grade WHO grade I tumors. These tumors all have good prognoses but are rare entities, with the commonest, gangioglioma, re...

PURPOSE To investigate the correlates of a clinical therapeutic response by using the parameters measured by proton magnetic resonance spectroscopy after the administration of atypical antipsychotics. PATIENTS AND METHODS Twenty-five antipsychotic-naïve first-episode patients with schizophrenia were monitored for 12 months. The patients were evaluated using (1)H magnetic resonance spectroscop...

[1] Recent findings indicate that ENSO may modulate the strength of the Indian monsoons by altering the meridional tropospheric temperature gradient between Asia and the equatorial Indian Ocean. Here we show that during northern hemisphere summertime El Niño events both colder upper tropospheric temperatures and increased vorticity anomalies are observed within the North African-Asian (NAA) jet...

Reduced N-acetyl-aspartate (NAA) levels have been reported in the prefrontal cortex (PFC) in patients with schizophrenia using proton magnetic resonance spectroscopy. However, it is unclear whether this NAA reduction predates the illness onset and is reported in subjects at-risk for developing schizophrenia (HRS). The aim of this study was to assess NAA levels in the PFC in HRS. We hypothesized...

Abstract Due to challenges associated with lavender propagation, Texas hybrid (lavandin) growers require revised propagation information. Therefore, experiments investigated effects of media and plant growth regulators (PGR) on rooting three different lavandin (Lavandula x intermedia) cultivars. PGRs applied cuttings were naphthaleneacetic acid (NAA), or indole-3-butyric (IBA) at concentrations...

Renanthera imschootiana Rolfe is an endangered tropical epiphytic orchid that is threatened with extinction due to over-collection and the loss of suitable habitats. In vitro propagation is a useful way to mass produce plants for re-establishment in the wild and for commercial propagation. Seeds collected 150 days after pollination (DAP) were the optimum stage for in vitro culture. Seed germina...

PURPOSE To study the intraindividual, interindividual, and intraregional reproducibility of multisection proton MR spectroscopic imaging in healthy adults. METHODS Six subjects were studied three times with proton MR spectroscopic imaging. Multisection long-echo-time proton MR spectroscopic imaging permits simultaneous acquisition of N-acetylaspartate (NAA), choline-containing compounds (Cho)...

BACKGROUND DATA There is a considerable difference in pain perception among individuals. In patients with chronic pain, recent studies using fMRI, PET and SPECT have shown that functional changes mainly occurred in the anterior cingulate cortex (ACC), prefrontal cortex (PFC) and thalamus. Brain magnetic resonance spectroscopy (MRS) can evaluate brain chemistry by measuring metabolites such as N...

Leaf explants of kaladium dwubarwne Caladium bicolor (Aiton) Vent., were cultured in vitro on MS media supplemented with 25 different concentrations of BAP and NAA in order to determine the appropriate concentrations for micropropagation. All combinations induced callus formation on explants. Callus production on leaves explants grown on control medium was very low. The medium enriched with 4 m...