Topographical evaluation of aphasic brain lesions can enhance our knowledge of cognitive physiology and plasticity. This prospective study was conducted on 100 stroke-afflicted patients with aphasia admitted in Valie-Asr Hospital (Khorasan, Iran) in 2003. Topography of infarct lesions was detected by a neurologist based on the map of brain vascular territories in CT-scan. Aphasic lesions catego...

Let R be a unit-regular ring, and let a, b, c ? satisfy aba = aca. If ac or ba is Drazin invertible, we prove that their inverses are similar. Furthermore, if group then similar to ba. For any n?n complex matrices A, B,C with ABA ACA, AC BA only k-powers have the same rank. These generalize known Flanders? theorem proved by Hartwig.

The distribution of selectively administered papaverine was determined in nine patients with delayed cerebral vasospasm in the territories of the anterior (ACA) and/or middle cerebral arteries (MCA) secondary to aneurysmal subarachnoid hemorrhage by simultaneous infusion with technetium-99m-hexamethyl-propyleneamine oxime (99mTc-HMPAO). Four of the nine patients had a ruptured anterior communic...

Purpose To evaluate the magnitudes and axis orientation of anterior corneal astigmatism (ACA) and posterior corneal astigmatism (PCA), the ratio of ACA to PCA, and the correlation between ACA and PCA in the different stages of keratoconus (KCN). Methods This retrospective case series comprised 161 eyes of 161 patients with KCN (104 men, 57 women; mean age, 22.35 ± 6.10 years). The participant...

The Na(+)/dicarboxylate cotransporter NaDC1 absorbs citric acid cycle intermediates from the lumen of the small intestine and kidney proximal tubule. No effective inhibitor has been identified yet, although previous studies showed that the nonsteroidal anti-inflammatory drug, flufenamate, inhibits the human (h) NaDC1 with an IC(50) value of 2 mM. In the present study, we have tested compounds r...

We present a rare case of bilateral anterior cerebral artery (ACA) territory infarction with akinetic mutism, quadriparesis and frontal lobe release signs along limbic dysfunction mimicking basilar thrombosis. The etiology was thrombosis the communicating propagation or embolism thrombus to both A2 segments restricted absent blood flow in branches arising from A3 causing extensive infarction. a...

PURPOSE To compare the precision of anterior chamber angle (ACA) and anterior chamber depth (ACD) measurements taken with ultrasound biomicroscopy (UBM) and the Artemis-2 Very High Frequency Ultrasound Scanner (VHFUS) in normal subjects. DESIGN Prospective study. METHODS We randomly selected one eye from each of 59 normal subjects in this study. Two subjects dropped out of the study; the as...

Peptide agonists and antagonists of both bradykinin (BK) B(1) and B(2) receptors (B(1)R, B(2)R) are known to tolerate to a certain level N-terminal sequence extensions. Using this strategy, we produced and characterized the full set of fluorescent ligands by extending both agonists and antagonist peptides at both receptor subtypes with 5(6)-carboxyfluorescein (CF) and the ε-aminocaproyl (ε-ACA)...

An analysis was made of clinical complications, determined with objective methods, in 68 patients at the University Clinic of Navarra with the clinical suspicion of antiphospholipid syndrome (APS) and presence of anticardiolipin antibodies (ACA). Patients with IgG higher than 23 GPL were considered for the study. The most prevalent pathology was thrombosis: venous thrombosis (42.6%) and arteria...