Learn More
PURPOSE Uveal melanoma is the most common primary intraocular malignancy in adult humans. Unlike cutaneous melanoma, uveal melanoma disseminates preferentially to the liver through the hematogenous system. To date, the mechanism underlying this metastatic homing is largely unknown. This study investigated the effect of hepatocyte growth factor(More)
A desiccation-based cryopreservation protocol was employed to study the development of cryotolerance and desiccation tolerance in maize embryos from 23 to 50 days after pollination (DAP). Tolerances were acquired gradually and concomitantly. Maize embryos had low desiccation tolerance at 23 DAP when assessed by survival (embryo elongation) and emergence(More)
Cytological and physiological changes during cryopreservation were studied in maize embryos at 35 days after pollination (DAP). Both dehydration and freezing caused cytological damage, such as plasmolysis, swelled mitochondria, increased heterochromatin, and nuclear shrinkage. Dehydration alone slightly impaired plasma membrane integrity while a drastic(More)
Rex rabbit is an important small herbivore for fur and meat production. However, little is known about the gut microbiota in rex rabbit, especially regarding their relationship with different fecal types and growth of the hosts. We characterized the microbiota of both hard and soft feces from rex rabbits with high and low body weight by using the Illumina(More)
Cubic boron nitride (cBN) is a well known superhard material that has a wide range of industrial applications. Nanostructuring of cBN is an effective way to improve its hardness by virtue of the Hall-Petch effect--the tendency for hardness to increase with decreasing grain size. Polycrystalline cBN materials are often synthesized by using the martensitic(More)
A novel carbon allotrope of C-centered orthorhombic C(8) (Cco-C(8)) is predicted by using a recently developed particle-swarm optimization method on structural search. Cco-C(8) adopts a sp(3) three-dimensional bonding network that can be viewed as interconnected (2,2) carbon nanotubes through 4- and 6-member rings and is energetically more favorable than(More)
Three methylated quercetins and a series of O-3 substituted 5,7,3',4'-tetra-O-methylated quercetin derivatives have been synthesized and evaluated on the modulating activity of P-gp, BCRP and MRP1 in cancer cell lines. Compound 17 (with a 2-((4-methoxybenzoyl)oxy)ethyl at O-3) is the most potent P-gp modulator. Three derivatives, compound 9(More)
Zygotic embryos from mature seeds of Sabal jamaicensis, S. minor, S. umbraculifera and S. yapa were cultured in vitro and cryopreserved successfully. Seed pretreatment prior to embryo isolation was shown to be crucial. Soaking seeds in water or sowing on 1% agar followed by incubation at 30°C for 1 day (S. jamaicensis, S. minor and S. umbraculifera) or 3(More)
The physisorption and chemisorption of hydrogen in BN nanotubes, investigated by density functional theory (DFT), were compared with carbon nanotubes. The physisorption of H2 on BN nanotubes is less favorable energetically than on carbon nanotubes; BN nanotubes cannot adsorb hydrogen molecules effectively in this manner. Chemisorption of H2 molecules on(More)
AIM To compare and identify the differences in expression of retinal proteins between normal and diabetic rats, and to analyze the molecular pathogenetic mechanisms of retinal diseases caused by diabetes. METHODS Changes in protein expression of retinal tissues from diabetic and normal rats were observed using 2-dimensional polyacrylamide gel(More)