136 research outputs found
3D Seismic Sedimentology of Nearshore Subaqueous Fans – A Case Study from Dongying Depression, Eastern China
A Biodegradable Polyethylenimine-Based Vector Modified by Trifunctional Peptide R18 for Enhancing Gene Transfection Efficiency In Vivo
Lack of capacity to cross the nucleus membrane seems to be one of the main
reasons for the lower transfection efficiency of gene vectors observed in vivo
study than in vitro. To solve this problem, a new non-viral gene vector was
designed. First, a degradable polyethylenimine (PEI) derivate was synthesized
by crosslinking low-molecular-weight (LMW) PEI with N-octyl-N-quaternary
chitosan (OTMCS), and then adopting a designed trifunctional peptide (RGDC-
TAT-NLS) with good tumor targeting, cell uptake and nucleus transport
capabilities to modify OTMCS-PEI. The new gene vector was termed as OTMCS-
PEI-R18 and characterized in terms of its chemical structure and biophysical
parameters. Gene transfection efficiency and nucleus transport mechanism of
this vector were also evaluated. The polymer showed controlled degradation and
remarkable buffer capabilities with the particle size around 100–300 nm and
the zeta potential ranged from 5 mV to 40 mV. Agraose gel electrophoresis
showed that OTMCS-PEI-R18 could effectively condensed plasmid DNA at a ratio
of 1.0. Besides, the polymer was stable in the presence of sodium heparin and
could resist digestion by DNase I at a concentration of 63U DNase I/DNA.
OTMCS-PEI-R18 also showed much lower cytotoxicity and better transfection
rates compared to polymers OTMCS-PEI-R13, OTMCS-PEI and PEI 25 KDa in vitro
and in vivo. Furthermore, OTMCS-PEI-R18/DNA complexes could accumulate in the
nucleus well soon and not rely on mitosis absolutely due to the newly
incorporated ligand peptide NLS with the specific nuclear delivery pathway
indicating that the gene delivery system OTMCS-PEI-R18 could reinforce gene
transfection efficiency in vivo
A method for restraining electromagnetic interference of electricity meter by means of pulse width testing circuit
Peer Reviewe
Highly efficient adsorption of Cr(VI) by Sakura leaves from aqueous solution
A forestry waste, natural Sakura leaves (SL), was applied to remove Cr(VI) from aqueous solution. SL exhibited a highly effective adsorption performance at optimum pH 1.0. The presence of Cr(III) in equilibrium solution revealed that chemical redox reaction occurred. The results showed that the removal was successfully fitted to the Langmuir model (R-2 > 0.99). The theoretical maximum adsorption capacity of Cr(VI) was 148.12 mg g(-1) in static adsorption, which was much higher than similar materials. The study provides a new way to reutilize the SL and indicates a strong potential for waste recycling
淋毒性副睪丸炎ノ療法追加
Abstract We demonstrate the synergistic antitumor effect of oridonin and the PI3K/mTOR inhibitor NVP-BEZ235 on the non-germinal center B cell-like subtype of diffuse large B cell lymphoma (non-GCB DLBCL) both in vitro and in vivo. The underlying mechanism may be multifunctional, involving apoptosis, AKT/mTOR and NF-kB inactivation, and ROS-mediated DNA damage response. Our findings pave the way for a new potential treatment option for non-GCB DLBCL with the combination of oridonin and NVP-BEZ235
N3-o-toluyl-fluorouracil inhibits human hepatocellular carcinoma cell growth via sustained release of 5-FU
A longitudinal resource for population neuroscience of school-age children and adolescents in China
During the past decade, cognitive neuroscience has been calling for population diversity to address the challenge of validity and generalizability, ushering in a new era of population neuroscience. The developing Chinese Color Nest Project (devCCNP, 2013–2022), the first ten-year stage of the lifespan CCNP (2013–2032), is a two-stages project focusing on brain-mind development. The project aims to create and share a large-scale, longitudinal and multimodal dataset of typically developing children and adolescents (ages 6.0–17.9 at enrolment) in the Chinese population. The devCCNP houses not only phenotypes measured by demographic, biophysical, psychological and behavioural, cognitive, affective, and ocular-tracking assessments but also neurotypes measured with magnetic resonance imaging (MRI) of brain morphometry, resting-state function, naturalistic viewing function and diffusion structure. This Data Descriptor introduces the first data release of devCCNP including a total of 864 visits from 479 participants. Herein, we provided details of the experimental design, sampling strategies, and technical validation of the devCCNP resource. We demonstrate and discuss the potential of a multicohort longitudinal design to depict normative brain growth curves from the perspective of developmental population neuroscience. The devCCNP resource is shared as part of the “Chinese Data-sharing Warehouse for In-vivo Imaging Brain” in the Chinese Color Nest Project (CCNP) – Lifespan Brain-Mind Development Data Community (https://ccnp.scidb.cn) at the Science Data Bank
Tubeless video-assisted thoracic surgery for pulmonary ground-glass nodules: expert consensus and protocol (Guangzhou)
Low dose of lenalidmide and PI3K/mTOR inhibitor trigger synergistic cytoxicity in activated B cell-like subtype of diffuse large B cell lymphoma
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