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Science China. Life Sciences

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https://www.readbyqxmd.com/read/29790060/protect-chromosomes-from-end-to-end-fusion-during-meiotic-bouquet
#1
Shunxin Wang, Binyuan Zhai, Xiao Yang, Liangran Zhang
No abstract text is available yet for this article.
May 18, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29785573/effect-of-dietary-soy-oil-glucose-and-glutamine-on-growth-performance-amino-acid-profile-blood-profile-immunity-and-antioxidant-capacity-in-weaned-piglets
#2
Dinghong Lv, Xia Xiong, Huansheng Yang, Meiwei Wang, Yijie He, Yanhong Liu, Yulong Yin
Weaning stress results in gastrointestinal dysfunction and depressed performance in pigs. This study aimed to investigate the effect of soy oil, glucose, and glutamine on the growth and health of weaned piglets. Compared with those in the glutamine group, piglets in the glucose and soy oil groups had greater average daily gain, average daily feed intake, and gain: feed ratio from day 0 to 14, and gain: feed ratio for the overall period. There were no differences with regard to serum amino acids among the three groups on day 14, except glycine and threonine...
May 18, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29785572/differential-efficiency-of-a-begomovirus-to-cross-the-midgut-of-different-species-of-whiteflies-results-in-variation-of-virus-transmission-by-the-vectors
#3
Lilong Pan, Qunfang Chen, Tao Guo, Xinru Wang, Ping Li, Xiaowei Wang, Shusheng Liu
Begomoviruses are important crop viral disease agents, and they are transmitted by whiteflies of the Bemisia tabaci complex. Although the transmission of begomoviruses by whiteflies has been studied for many years, the mechanisms governing differential transmission of begomoviruses by different species of the Bemisia tabaci complex remain largely unknown. Here we firstly compared the transmission efficiency of tobacco curly shoot virus (TbCSV) by four species of the B. tabaci complex and found that Asia II 1 transmitted this virus with the highest efficiency, whereas MEAM1 transmitted it with the lowest...
May 18, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29785571/intersectional-gene-inactivation-there-is-more-to-conditional-mutagenesis-than-cre
#4
Philippe Soriano
No abstract text is available yet for this article.
May 18, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29752579/profile-of-dr-lin-lu
#5
(no author information available yet)
No abstract text is available yet for this article.
May 12, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29744783/behavioral-interventions-to-eliminate-fear-responses
#6
REVIEW
Jingli Yue, Le Shi, Xiao Lin, Muhammad Zahid Khan, Jie Shi, Lin Lu
Fear memory underlies anxiety-related disorders, including posttraumatic stress disorder (PTSD). PTSD is a fear-based disorder, characterized by difficulties in extinguishing the learned fear response and maintaining extinction. Currently, the first-line treatment for PTSD is exposure therapy, which forms an extinction memory to compete with the original fear memory. However, the extinguished fear often returns under numerous circumstances, suggesting that novel methods are needed to eliminate fear memory or facilitate extinction memory...
May 7, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29744782/comparative-study-on-the-gut-microbiotas-of-four-economically-important-asian-carp-species
#7
Xinghao Li, Yuhe Yu, Chang Li, Qingyun Yan
Gut microbiota of four economically important Asian carp species (silver carp, Hypophthalmichthys molitrix; bighead carp, Hypophthalmichthys nobilis; grass carp, Ctenopharyngodon idella; common carp, Cyprinus carpio) were compared using 16S rRNA gene pyrosequencing. Analysis of more than 590,000 quality-filtered sequences obtained from the foregut, midgut and hindgut of these four carp species revealed high microbial diversity among the samples. The foregut samples of grass carp exhibited more than 1,600 operational taxonomy units (OTUs) and the highest alpha-diversity index, followed by the silver carp foregut and midgut...
May 7, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29730722/relb-intrinsically-regulates-the-development-and-function-of-medullary-thymic-epithelial-cells
#8
Caiwei Jin, Mingzhao Zhu
Medullary thymic epithelial cells (mTECs) act as one of the major stromal components in the thymus for selection and maturation of both conventional T cells and non-conventional T cells. Extensive efforts have been spent to understand how mTEC development and function are regulated. Although RelB has been well accepted to be a critical transcriptional factor for mTEC development, the underlying mechanisms still remain largely unclear. In this study, by generating thymic epithelial cell specific RelB deficient mice, we found that epithelial intrinsic RelB is required for mTEC homeostatic proliferation...
May 1, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29752580/loss-of-hox5-function-results-in-myofibroblast-mislocalization-and-distal-lung-matrix-defects-during-postnatal-development
#9
Steven M Hrycaj, Leilani Marty-Santos, Andrew J Rasky, Nicholas W Lukacs, Deneen M Wellik
Alveologenesis is the final stage of lung development and is responsible for the formation of the principle gas exchange units called alveoli. The lung mesenchyme, in particular the alveolar myofibroblasts, are drivers of alveolar development, however, few key regulators that govern the proper distribution and behavior of these cells in the distal lung during alveologenesis have been identified. While Hox5 triple mutants (Hox5 aabbcc) exhibit neonatal lethality, four-allele, compound mutant mice (Hox5 AabbCc) are born in Mendelian ratios and are phenotypically normal at birth...
April 27, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29705873/association-of-trimcyp-and-trim5%C3%AE-from-assam-macaques-leads-to-a-functional-trade-off-between-hiv-1-and-n-mlv-inhibition
#10
Dan Mu, Jia-Wu Zhu, Feng-Liang Liu, Hong-Yi Zheng, Yong-Tang Zheng
TRIM5α restricts retroviruses in a species-specific manner. Cyclophilin A was independently retrotransposed into the TRIM5 loci in different species, leading to the generation of antiviral TRIM5-cyclophilin A (TRIMCyp) proteins. Previously, we found that assam macaques express a TRIMCyp chimera (amTRIMCyp), along with a TRIM5α allelic protein (amTRIM5α). Herein, we investigated the antiviral activity of amTRIMCyp and amTRIM5α individually, as well as their interaction and joint effects. amTRIMCyp showed a divergent restriction pattern from amTRIM5α...
April 26, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29700703/lack-of-correlation-between-aristolochic-acid-exposure-and-hepatocellular-carcinoma
#11
Xiangjun Ji, Guoshuang Feng, Geng Chen, Tieliu Shi
No abstract text is available yet for this article.
April 20, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29675553/a-potential-strategy-for-treating-atherosclerosis-improving-endothelial-function-via-amp-activated-protein-kinase
#12
REVIEW
Feng Gao, Jiemei Chen, Haibo Zhu
Endothelial dysfunction is caused by many factors, such as dyslipidemia, endoplasmic reticulum (ER) stress, and inflammation. It has been demonstrated that endothelial dysfunction is the initial process of atherosclerosis. AMP-activated protein kinase (AMPK) is an important metabolic switch that plays a crucial role in lipid metabolism and inflammation. However, recent evidence indicates that AMPK could be a target for atherosclerosis by improving endothelial function. For instance, activation of AMPK inhibits the production of reactive oxygen species induced by mitochondrial dysfunction, ER stress, and NADPH oxidase...
April 16, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29656340/caps-dcaps-designer-a-web-based-high-throughput-dcaps-marker-design-tool
#13
LETTER
Lei Li, Jiajun Liu, Xiang Xue, Changcheng Li, Zefeng Yang, Tao Li
No abstract text is available yet for this article.
April 12, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29656339/role-of-ampk-in-atherosclerosis-via-autophagy-regulation
#14
REVIEW
Hanxiao Ou, Chuhao Liu, Wenjie Feng, Xinwen Xiao, Shengsong Tang, Zhongcheng Mo
Atherosclerosis is characterized by the accumulation of lipids and deposition of fibrous elements in the vascular wall, which is the primary cause of cardiovascular diseases. Adenosine monophosphate-activated protein kinase (AMPK) is a metabolic sensor of energy metabolism that regulates multiple physiological processes, including lipid and glucose metabolism and the normalization of energy imbalances. Overwhelming evidence indicates that AMPK activation markedly attenuates atherosclerosis development. Autophagy inhibits cell apoptosis and inflammation and promotes cholesterol efflux and efferocytosis...
April 12, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29675551/magnetic-nanoparticles-based-cancer-therapy-current-status-and-applications
#15
REVIEW
Huan Zhang, Xiao Li Liu, Yi Fan Zhang, Fei Gao, Ga Long Li, Yuan He, Ming Li Peng, Hai Ming Fan
Nanotechnology holds a promising potential for developing biomedical nanoplatforms in cancer therapy. The magnetic nanoparticles, which integrate uniquely appealing features of magnetic manipulation, nanoscale heat generator, localized magnetic field and enzyme-mimics, prompt the development and application of magnetic nanoparticles-based cancer medicine. Considerable success has been achieved in improving the magnetic resonance imaging (MRI) sensitivity, and the therapeutic function of the magnetic nanoparticles should be given adequate attention...
April 3, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29666989/effect-of-nanoheat-stimulation-mediated-by-magnetic-nanocomposite-hydrogel-on-the-osteogenic-differentiation-of-mesenchymal-stem-cells
#16
Zheng Cao, Dan Wang, Yongsan Li, Wensheng Xie, Xing Wang, Lei Tao, Yen Wei, Xiumei Wang, Lingyun Zhao
Hyperthermia has been considered as a promising healing treatment in bone regeneration. We designed a tissue engineering hydrogel based on magnetic nanoparticles to explore the characteristics of hyperthermia for osteogenic regeneration. This nanocomposite hydrogel was successfully fabricated by incorporating magnetic Fe3 O4 nanoparticles into chitosan/polyethylene glycol (PEG) hydrogel, which showed excellent biocompatibility and were able to easily achieve increasing temperatures under an alternative magnetic field (AMF)...
April 3, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29675554/theranostical-application-of-nanomedicine-for-treating-central-nervous-system-disorders
#17
REVIEW
Wang Ran, Xue Xue
The primary reason for the failure of traditional medicine in treating the disorders of the central nervous system (CNS) is the obstruction to traverse the blood-brain barrier (BBB). Due to the unique physiochemical properties of nanoparticles, they can preferably help deliver drugs passing through the BBB. Researchers have been investigating the capacity of multifunctional nanomaterials as theranostical agents. However, some of the studies have reported controversial results, which might be due to different schematic designs, including size, surface charge, and shape...
April 2, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29666990/sonodynamic-therapy-sdt-a-novel-strategy-for-cancer-nanotheranostics
#18
REVIEW
Xueting Pan, Hongyu Wang, Shunhao Wang, Xiao Sun, Lingjuan Wang, Weiwei Wang, Heyun Shen, Huiyu Liu
Sonodynamic therapy (SDT) is a promising non-invasive therapeutic modality. Compared to photo-inspired therapy, SDT provides many opportunities and benefits, including deeper tissue penetration, high precision, less side effects, and good patient compliance. Thanks to the facile engineerable nature of nanotechnology, nanoparticles-based sonosensitizers exhibit predominant advantages, such as increased SDT efficacy, binding avidity, and targeting specificity. This review aims to summarize the possible mechanisms of SDT, which can be expected to provide the theoretical basis for SDT development in the future...
April 2, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29656338/morphology-of-living-cells-cultured-on-nanowire-arrays-with-varying-nanowire-densities-and-diameters
#19
Zhen Li, Henrik Persson, Karl Adolfsson, Stina Oredsson, Christelle N Prinz
Vertical nanowire arrays are increasingly investigated for their applications in steering cell behavior. The geometry of the array is an important parameter, which influences the morphology and adhesion of cells. Here, we investigate the effects of array geometry on the morphology of MCF7 cancer cells and MCF10A normal-like epithelial cells. Different gallium phosphide nanowire array-geometries were produced by varying the nanowire density and diameter. Our results show that the cell size is smaller on nanowires compared to flat gallium phosphide...
April 2, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29675552/nanobiotechnology-and-nanomedicine-small-change-brings-big-difference
#20
EDITORIAL
Shizhu Chen, Xing-Jie Liang
No abstract text is available yet for this article.
April 1, 2018: Science China. Life Sciences
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