نتایج جستجو برای: nras
تعداد نتایج: 2055 فیلتر نتایج به سال:
myelodysplastic syndrome (mds), is a group of heterogeneous disorders of hematopoietic stem cell colonies which is determined by incomplete hematopoiesis in one or more cell lines. the incidence increases with age and it has less been reported among patients under 50 years of age. the commonest form of mds is sporadic, and familial occurrence of mds is rare. patients with familial mds are young...
In order to obtain a better photocatalytic performance under visible light, Ag2S-coupled TiO2 nanorod arrays (NRAs) were prepared through the electron beam deposition with glancing angle deposition (GLAD) technique, annealing in air, followed by the successive ionic layer absorption and reaction (SILAR) method. The properties of the photoelectrochemical and photocatalytic degradation of methyl ...
In this work, three slanted silver nanorod arrays (NRAs) with different thicknesses are fabricated using the glancing angle deposition method. Each silver NRA in the Kretschmann configuration is arranged to form a prism/NRA/air system. Attenuated total reflection occurs over the visible wavelengths and wide incident angles of both s- and p-polarization states. The extinctance is inversely propo...
Giant congenital melanocytic nevi (GCMN) are a rare occurrence. Gain-of-function mutation in the NRAS gene is found to be associated with GCMN, causing abnormal proliferation of embryonic melanoblasts. The two major complications associated with GCMN are malignant melanoma and neurocutaneous melanosis. Treatment of GCMN has conventionally been surgical. However, the role of NRAS inhibitors and ...
The p38 kinases mediate cell adaptation to stresses and play varying roles in tumorigenesis. However, the isoform-specific cutaneous melanoma (SKCM), particularly context of clinically important driver mutations, remain elusive. We used bioinformatic tools analyze isoform expression TCGA SKCM subtypes defined by presence BRAF or NRAS mutations. found that p38β, p38γ p38δ levels were increased, ...
This study investigated miR-148b as a potential physiological actor of physical inactivity-induced effects in skeletal muscle. By using animal and human protocols, we demonstrated that the early phase of transition toward inactivity was associated with an increase in muscle miR-148b content, which triggered the downregulation of NRAS and ROCK1 target genes. Using human myotubes, we demonstrated...
Purpose: The mutation load in melanoma is generally high compared with other tumor types due to extensiveUVdamage. Translation of exome sequencing data into clinically relevant information is therefore challenging. This study sought to characterize mutations identified in primary cutaneous melanomas and correlate these with clinicopathologic features. Experimental Design: DNA was extracted from...
BACKGROUND We have previously shown that palmitoylation is essential for NRAS leukemogenesis, suggesting that targeting RAS palmitoylation may be an effective therapy for NRAS-related cancers. For KRAS-driven cancer, although much research has been focused on the KRAS4B splice variant, which does not undergo palmitoylation, KRAS4A has recently been shown to play an essential role in the develop...
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