The lethal spotted (ls) mouse has been used as a model for the human disorder Hirschsprung's disease, because as in the latter condition, ls/ls homozygotes are born without ganglion cells in their terminal colons and, without surgical intervention, die early as a consequence of intestinal obstruction. Previous studies have led to the conclusion that hereditary aganglionosis in ls/ls mice occurs...

the myelodysplastic syndrome (mds) is a highly heterogenous disorder and karyotype analysis is helpful for diagnostic and prognostic estimation. deletion in long arm chromosome 6 (6q del) as a sole abnormality is a rare event in mds. this is the first case report of del (6q) as the only observed diagnostic change in iran. we also reviewed the literature of this cytogenetic lesion.

INTRODUCTION Cardiovascular disease is the most common cause of death. Life satisfaction is a predictor of morbidity and mortality, irrespectively of objective measures of health status. The aim of the study was to evaluate the relationship between life satisfaction (LS) and cardiovascular disease risk (CVD) assessed with the Framingham Risk Score (FRS) in Polish adults. MATERIAL AND METHODS ...

BackgroundAttention deficit hyperactivity disorder (ADHD), is a multifactorial disorder and converging evidence has implicated abnormalities of dopamine neurotransmission. The aim of this study was to examine the association of -141 polymorphisms in DRD2 gene with ADHA among Iranian-Azeri population.Materials and Methods A case–control association study included 153 patients with attention defi...

A homology-based PCR method was used to clone a cDNA encoding lanosterol synthase (LS) from Ganoderma lucidum (G. lucidum), which produces triterpenes. The cDNA of the LS (GenBank accession no. GQ169528) was found to contain an open reading frame (ORF) of 2,181 bp encoding a 726 amino acid polypeptide, whereas the LS genomic DNA sequence (GenBank accession no. GQ169529) consists of 2,924 bp. Fu...

The competitive adsorption of lung surfactant (LS) and albumin at the air-liquid interface and the ability of polyethylene glycol (PEG) to mediate LS adsorption are analyzed using pressure-area isotherms and grazing incidence x-ray diffraction (GIXD). The addition of albumin drastically reduces the amount of LS on the interface and slightly increases the LS lattice spacing. The addition of PEG ...

BACKGROUND AND PURPOSE In a large number of patients with Leigh syndrome (LS) and cytochrome c oxidase (COX) deficiency, mutations of the SURF-1 gene were recently identified. The aim of the present study was to review the MR findings in patients with LS to verify if the genetically homogeneous patients with LS and SURF-1 mutations (LS SURF-1 patients) had a homogeneous MR pattern that could be...