Biological Characteristics of Severe Combined Immunodeficient Mice Produced by CRISPR/Cas9-Mediated Rag2 and IL2rg Mutation

Biological Characteristics of Severe Combined Immunodeficient Mice Produced by CRISPR/Cas9-Mediated Rag2 and IL2rg Mutation Yong Zhao1, Peijuan Liu1, Zhiqian Xin1, Changhong Shi1, Yinlan Bai2, Xiuxuan Sun3, Ya Zhao1, Xiaoya Wang1,4, Li Liu1,5, Xuan Zhao1,4, Zhinan Chen3* and Hai Zhang1,6* 1Laboratory Animal Center, Air Force Medical University, Xi’an, China 2Department of Microbiology, Air Force Medical University, Xi’an, China 3Department of Cell Biology, National Translational Science Center for Molecular Medicine, Air Force Medical University, Xi’an, China 4College of Veterinary Medicine, Northwest A&F University, Yangling, China 5Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, China 6National Translational Science Center for Molecular Medicine, Air Force Medical University, Xi’an, China Clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated (Cas)9 is a novel and convenient gene editing system that can be used to construct genetically modified animals. Recombination activating gene 2 (Rag2) is a core component that is involved in the initiation of V(D)J recombination during T- and B-cells maturation. Separately, the interleukin-2 receptor gamma chain gene (IL2rg) encoded the protein-regulated activity of natural killer (NK) cells and shared common receptors of some cytokines. Rag2 and IL2rg mutations cause immune system dis...
Source: Frontiers in Genetics - Category: Genetics & Stem Cells Source Type: research

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Publication date: Available online 22 August 2019Source: Advances in Virus ResearchAuthor(s): M. Alejandra Tortorici, David VeeslerAbstractCoronaviruses (CoVs) have caused outbreaks of deadly pneumonia in humans since the beginning of the 21st century. The severe acute respiratory syndrome coronavirus (SARS-CoV) emerged in 2002 and was responsible for an epidemic that spread to five continents with a fatality rate of 10% before being contained in 2003 (with additional cases reported in 2004). The Middle-East respiratory syndrome coronavirus (MERS-CoV) emerged in the Arabian Peninsula in 2012 and has caused recurrent outbre...
Source: Advances in Virus Research - Category: Virology Source Type: research
The objective of the study was to (1) characterize and compare the chemical composition at the surface, subsurface and in the bulk of thin plastic films used for portosystemic shunt attenuation in their native state and after plasma exposure. (2) Assess the presence, concentration and location of irritant compounds (e.g dicetyl phosphate) within the films.Attenuated Total Reflectance Infrared Spectroscopy (ATR-IR), X-ray Photoelectron Spectroscopy (XPS) and dynamic Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS) were used to analyze thirteen thin plastic films. Sample thickness was visualized and measured using S...
Source: Research in Veterinary Science - Category: Veterinary Research Source Type: research
CONCLUSION: This first randomized resistance training trial in pancreatic cancer patients indicated clinically relevant improve- ments in QoL after 3 but not after 6 months. Given the severity of pancreatic cancer, exercise recommendations may already commence at surgery. PMID: 31431236 [PubMed - in process]
Source: Deutsches Arzteblatt International - Category: General Medicine Tags: Dtsch Arztebl Int Source Type: research
CONCLUSIONS: Physicians reported higher perceptions of disparities in perioperative care than non-physicians, potentially explained by differences in training or contact with patients. Such findings serve as a first step at examining and discussing disparities in perioperative care and warrant further study. PMID: 31431287 [PubMed - as supplied by publisher]
Source: Journal of the National Medical Association - Category: General Medicine Tags: J Natl Med Assoc Source Type: research
Publication date: December 2019Source: Results in Physics, Volume 15Author(s): Abhilash Pathania, Preeti Thakur, Alex V. Trukhanov, Sergei V. Trukhanov, Larissa V. Panina, Ulrike Lüders, Atul ThakurAbstractThis paper reports on the study of series of tungsten doped Ni0.5Zn0.5WxFe2−xO4 (x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) ferrites synthesized by a co-precipitation scheme. The crystallite size varies from 62 to 49 nm and the scanning electron microscope (SEM) images show the spinel cubic structure of the powder sample. Energy Dispersive X-ray Fluorescence Spectroscopy (EDXRF) confirms the presence of Ni, Zn, W...
Source: Results in Physics - Category: Physics Source Type: research
Abstract Biological traits analysis (BTA) can help identify the effect of various contaminants on functional trait composition of macrobenthos. However, the effects of bioavailable heavy metals on functional traits of macrobenthos communities remain to be examined. We sampled macrobenthos communities and assessed environmental variables over gradients of heavy metal pollution in Swan Lagoon, China. The RLQ and fourth-corner approaches were used to investigate the response of functional traits to heavy metal pollution. Our findings suggested that macrobenthic functional traits can be used to distinguish the effects...
Source: Environmental Pollution - Category: Environmental Health Authors: Tags: Environ Pollut Source Type: research
Abstract Elemental concentrations of ambient aerosols are commonly sampled over 12-24 h, and the low time resolution puts a great limit on current understanding about the temporal variations and source apportionment based on receptor models. In this work, hourly-resolved concentrations of eighteen elements in PM2.5 at an urban site in Nanjing, a megacity in Yangtze River Delta of east China, were obtained by using a Xact 625 ambient metals monitor from 12/12/2016 to 12/31/2017. The influence of traffic activities was clearly reflected by the spikes of crustal elements (e.g., Fe, Ca, and Si) in the morning rush h...
Source: Environmental Pollution - Category: Environmental Health Authors: Tags: Environ Pollut Source Type: research
AbstractElectric energy plays an irreplaceable role in nearly every person ’s life on earth; it has become an important subject in operational research. Day by day, electrical load demand grows rapidly with increasing population and developing technology such as smart grids, electric cars, and renewable energy production. Governments in deregulated economies make investm ents and operating plans of electric utilities according to mid- and long-term load forecasting results. For governments, load forecasting is a vitally important process including sales, marketing, planning, and manufacturing divisions of every indus...
Source: European Journal of Applied Physiology - Category: Physiology Source Type: research
In conclusion, the PRPF4 gene plays an important role in the growth of breast cancer cells and is therefore a potential therapeutic target.
Source: Molecular and Cellular Probes - Category: Molecular Biology Source Type: research
Publication date: 15 December 2019Source: Journal of Molecular Structure, Volume 1198Author(s): Lei Wang, Gui-Bin XueAbstractSolvothermal reactions of 1, 3, 5-tris (4-carboxyphenyl)-benzene (H3BTB) with Gd(NO3)·6H2O gave rise to a new highly porous coordination polymer {[Gd(BTB)(H2O)](DMF)(H2O)}n (1) having three dimensional structure. In light of its highly rigid framework as well as the large one-dimensional triangular channel configuration that has abundant open metal sites, we can utilize the resulting activated 1a as effective Lewis catalysts for the acetaldehyde's cyanosilylation at room temperature. The compa...
Source: Journal of Molecular Structure - Category: Molecular Biology Source Type: research
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