نتایج جستجو برای: 1343
تعداد نتایج: 543 فیلتر نتایج به سال:
Aim: The aim of this systematic analysis was to assess the prevalence dentinal microcracks at various levels (3, 6, and 9 mm from apex) after using instruments made with conventional, R-Phase, M-Wire NiTi alloys SAF system. Materials Methods: Electronic searches were conducted in databases Embase, Cochrane Library, Scopus, PubMed, Web Science. To arrange search methods, “MeSH” terms and/or keyw...
Developmental- and differentiation-specific patterns of human - and -globin promoter DNA methylation
The mechanisms underlying the human fetal-to-adult -globin gene switch remain to be determined. While there is substantial experimental evidence to suggest that promoter DNA methylation is involved in this process, most data come from studies in nonhuman systems. We have evaluated human and -globin promoter methylation in primary human fetal liver (FL) and adult bone marrow (ABM) erythroid cell...
A multiplexed diode-laser sensor system, comprised of two InGaAsP diode lasers and fiber-optic components, has been developed to non-intrusively measure temperature and species concentration over a single path for closed-loop process control using laser absorption spectroscopy techniques. The system was applied to measure and control the gas temperature in the post-flame gases 6 mm above the su...
PURPOSE To determine risk factors for the development of gallstones and the prevalence of related cholecystectomy in children following hematopoietic cell transplantation (HCT). PATIENTS AND METHODS A retrospective chart review of 1343 patients aged below 18 years old who survived at least 1 year after HCT from 1969 to 2011 was performed. Multivariate Cox regression models were used to estima...
Emerging evidence suggests that a common functional polymorphism, rs4444903 (A>G), in the EGF gene might impact an individual's susceptibility to liver cancer; however, individually published results are inconclusive. This meta-analysis aimed to derive a more precise estimation of the relationship between the EGF rs4444903 polymorphism and liver cancer risk. A literature search was conducted in...
Sequence folding is known to determine the spatial structure and catalytic function of proteins and nucleic acids. We show here that folding also plays a key role in enhancing the evolutionary stability of the intermolecular recognition necessary for the prevalent mode of catalytic action in replication, namely, in trans, one molecule catalyzing the replication of another copy, rather than itse...
BACKGROUND Recent evidence shown that lactoferrin could exert an antimicrobial effect against Helicobacter pylori both in vitro and in vivo models. To systematically evaluate whether adding lactoferrin to H. pylori eradication regimens could improve eradication rates and reduce side-effects during anti-H. pylori treatment. MATERIALS AND METHODS Eligible articles were identified by searches of...
1932, 25, 1343 (Sect. Odont., 39). 9 Bradley WH., Arch. Dis. Childhood, 1930, 29,359. 10 Glover JA, and Wilson J., Brit. M. J., 1932 (ii), 506 11 Cunningham Ruby L., Arch. Int. Med., 1931, 47, 513. 12 Ash WM., Reports to the Derbyshire Education Committee 1931-7. 13 Hewitt ES, and Geddie KB., Am. J. Hyg., 1932, 15, 1 Paterson D and Bray GW., Lancet, 1928 (ii), 1074. 14 Close HG Guy’s Hosp. Rep....
The primary genetic risk factor in multiple sclerosis (MS) is the HLA-DRB1*1501 allele; however, much of the remaining genetic contribution to MS has yet to be elucidated. Several lines of evidence support a role for neuroendocrine system involvement in autoimmunity which may, in part, be genetically determined. Here, we comprehensively investigated variation within eight candidate hypothalamic...
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