We predict that freely suspended, linear molecular conductors or dielectrics, such as carbon nanotubes, can support electronic states that are localized far from the surface. These "tubular image states" are formed in extended potential wells resulting from the tug of war between the external electron's attraction to its image charge in the nanotube, and its repulsion from the tube due to its t...

Autosomal recessive distal renal tubular acidosis is usually a severe disease of childhood, often presenting as failure to thrive in infancy. It is often, but not always, accompanied by sensorineural hearing loss, the clinical severity and age of onset of which may be different from the other clinical features. Mutations in either ATP6V1B1 or ATP6V0A4 are the chief causes of primary distal rena...

It has been demonstrated recently that human growth hormone (HGH) increases the tubular reabsorption of phosphate in man (1, 2). This effect is probably responsible for the fall in urinary excretion of phosphate and the rise in plasma level of phosphorus produced by growth hormone (GH) and may also explain the elevation of plasma phosphorus found in acromegaly. The action of GH on tubular trans...

T cells reactive against immunodominant regions of inducible heat shock proteins (HSPs) have been identified in the chronic inflammatory lesions of several experimental autoimmune diseases. Since HSPs are known to be induced by a number of renal tubular epithelial cell toxins associated with chronic interstitial nephritis, we investigated the relevance of HSP expression and T cell reactivity to...

Human induced pluripotent stem cell-derived mesenchymal stem cells (iPS-MSCs) are emerging as attractive options for use in cell replacement therapy, but their effect in kidney diseases remains unknown. Here, we showed that intravenous injection of iPS-MSCs protect against renal function loss in both short-term and long-term models of adriamycin nephropathy (AN). In the short-term AN model, iPS...

A pathogenic role of the kidney in hypertension has been strongly supported by experimental studies by Guyton and Dahl since the 1960s. In the early 1980s, de Wardener and MacGregor proposed that in hypertensive patients the ability of the kidneys to excrete a sodium load could be genetically impaired. Since then, "sodium-sensitive" hypertension has been the object of numerous studies, mostly o...

Steam reforming is one of the most important processes for producing hydrogen from hydrocarbon fuels such as LPG and has attracted much attention due to its high efficiency and economy. In this study, the LPG steam reforming reaction was investigated on nickel catalysts supported on four various zeolites (H-Y, Na-Y, HZSM5 and Ferrierite). The catalytic tests were performed in a tubular fixed be...

background : the cause of death is difficult to interpret in a road-traffic accident (rta) victim, because multiple injuries make it difficult to decide on the most fatal lesion, particularly when death is delayed by prompt medical intervention; and secondary haemorrhage, renal failure, fat embolism, systemic infections, myocardial or cerebral infarction – all comes under the potential differen...

to find if some indices have predictive value for renal complications. we conducted a cross sectional and included 80 patients with the age ranged 5-17 years, all with the proven diagnosis of β-thalassemia major. a urine and 5 ml of blood sample were obtained from all of the cases. biochemical indices such as serum levels of creatinine, na, mg, hb, and ferritin and also urine levels of na, mg, ...