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https://www.readbyqxmd.com/read/29692082/-double-ambient-co-2-concentration-affects-the-growth-development-and-sucking-behavior-of-non-target-brown-plant-hopper-nilaparvata-lugens-fed-on-transgenic-bt-rice
#1
Yong Qing Lu, Yang Dai, Xiu Ying Yu, Fu-Lan Yu, Shou Lin Jiang, Zong Yuan Zhou, Fa Jun Chen
In recent years, the two issues of climate change including elevated CO2 etc., and resistance of transgenic Bt crops against non-target insect pests have received widespread attention. Elevated CO2 can affect the herbivorous insects. To date, there is no consensus about the effect of elevated CO2 on the suck-feeding insect pests (non-target insect pests of transgenic Bt crops). Its effects on the suck-feeding behavior have rarely been reported. In this study, CO2 levels were set up in artificial climate chamber to examined the effects of ambient (400 μL·L-1 ) and double-ambient (800 μL·L-1 ) CO2 levels on the suck-feeding behavior, growth, development, and reproduction of the non-target insect pest of transgenic Bt rice, brown planthopper, Nilaparvata lugens...
February 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29691979/the-bdnf-val68met-polymorphism-modulates-how-developmental-ethanol-exposure-impacts-the-hippocampus
#2
Clark W Bird, Brian C Baculis, Jacob J Mayfield, Glenna J Chavez, Tiahna Ontiveros, Dana J Paine, Aaron J Marks, Alicia L Gonzales, Dorit Ron, C Fernando Valenzuela
Prenatal exposure to alcohol causes a wide range of deficits known as Fetal Alcohol Spectrum Disorders (FASDs). Many factors determine vulnerability to developmental alcohol exposure including timing and pattern of exposure, nutrition, and genetics. Here, we characterized how a prevalent single nucleotide polymorphism in the human brain-derived neurotrophic factor (BDNF) gene (val66met) modulates FASDs severity. This polymorphism disrupts BDNF's intracellular trafficking and activity dependent secretion, and has been linked to increased incidence of neuropsychiatric disorders such as depression and anxiety...
April 24, 2018: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/29691677/expression-of-ovate-family-protein-8-affects-epicuticular-waxes-accumulation-in-arabidopsis-thaliana
#3
Yao Tang, Wei Zhang, Yan-Li Yin, Peng Feng, Hong-Ling Li, Ying Chang
BACKGROUND: Transcription factors could regulate multiple aspects of plants growth and development, which is significant to plants. Ovate family proteins (OFPs) that are named due to contain OVATE domain, a 70-AA C-terminal conserved domain from the protein OVATE gene encodes, are plant-specific transcription factors family. Some members of OFPs have been shown to function as transcription factors to regulate plant growth and development, but little is known about the function of AtOFP8...
April 24, 2018: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/29691637/a-wrky-transcription-factor-pcwrky33-from-polygonum-cuspidatum-reduces-salt-tolerance-in-transgenic-arabidopsis-thaliana
#4
Wenqi Bao, Xiaowei Wang, Mo Chen, Tuanyao Chai, Hong Wang
PcWRKY33 is a transcription factor which can reduce salt tolerance by decreasing the expression of stress-related genes and increasing the cellular levels of reactive oxygen species (ROS). WRKY transcription factors play important roles in the regulation of biotic and abiotic stresses. Here, we report a group I WRKY gene from Polygonum cuspidatum, PcWRKY33, that encodes a nucleoprotein, which specifically binds to the W-box in the promoter of target genes to regulate their expression. The results from qPCR and promoter analysis show that expression of PcWRKY33 can be induced by various abiotic stresses, including NaCl and plant hormones...
April 24, 2018: Plant Cell Reports
https://www.readbyqxmd.com/read/29691582/-ace2-agonist-dize-alleviates-lung-injury-induced-by-limb-ischemia-reperfusion-in-mice
#5
Shu-Min Li, Xiao-Ying Wang, Fan Liu, Xiu-Hong Yang
This study was aimed to explore the effect of angiotensin converting enzyme 2 (ACE2) agonist diminazene aceturate (DIZE) on acute lung injury (ALI) induced by limb ischemia-reperfusion (LIR) in mice. Male 8-week-old wild-type and hACE2 transgenic ICR mice were randomly divided into 6 groups (6 in each group), including wild-type control (W), wild-type model (WL), wild-type model with DIZE administration (WLD), transgenic control (T), transgenic model (TL), and transgenic model with DIZE administration (TLD) groups...
April 25, 2018: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/29691476/lymphomas-driven-by-epstein-barr-virus-nuclear-antigen-1-ebna1-are-dependant-upon-mdm2
#6
Sana AlQarni, Yazeed Al-Sheikh, Donald Campbell, Mark Drotar, Adele Hannigan, Shelagh Boyle, Pawel Herzyk, Andrew Kossenkov, Kate Armfield, Lauren Jamieson, Mariarca Bailo, Paul M Lieberman, Penelope Tsimbouri, Joanna B Wilson
Epstein-Barr virus (EBV)-associated Burkitt's lymphoma is characterised by the deregulation of c-Myc expression and a restricted viral gene expression pattern in which the EBV nuclear antigen-1 (EBNA1) is the only viral protein to be consistently expressed. EBNA1 is required for viral genome propagation and segregation during latency. However, it has been much debated whether the protein plays a role in viral-associated tumourigenesis. We show that the lymphomas which arise in EµEBNA1 transgenic mice are unequivocally linked to EBNA1 expression and that both C-Myc and Mdm2 deregulation are central to this process...
April 25, 2018: Oncogene
https://www.readbyqxmd.com/read/29691457/metabolic-and-cardiac-adaptation-to-chronic-pharmacologic-blockade-of-facilitative-glucose-transport-in-murine-dilated-cardiomyopathy-and-myocardial-ischemia
#7
Monique R Heitmeier, Maria A Payne, Carla Weinheimer, Attila Kovacs, Richard C Hresko, Patrick Y Jay, Paul W Hruz
GLUT transgenic and knockout mice have provided valuable insight into the role of facilitative glucose transporters (GLUTs) in cardiovascular and metabolic disease, but compensatory physiological changes can hinder interpretation of these models. To determine whether adaptations occur in response to GLUT inhibition in the failing adult heart, we chronically treated TG9 mice, a transgenic model of dilated cardiomyopathy and heart failure, with the GLUT inhibitor ritonavir. Glucose tolerance was significantly improved with chronic treatment and correlated with decreased adipose tissue retinol binding protein 4 (RBP4) and resistin...
April 24, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29691440/maternal-imprinting-on-cognition-markers-of-wild-type-and-transgenic-alzheimer-s-disease-model-mice
#8
Marta Zamarbide, Francisco J Gil-Bea, Paul Bannenberg, Eva Martínez-Pinilla, Juan Sandoval, Rafael Franco, Alberto Pérez-Mediavilla
The risk of suffering from Alzheimer's disease (AD) is higher in individuals from AD-affected mothers. The purpose of this investigation was to study whether maternal transmission might produce AD-related alterations in progenies of mice that do not have any genotypic alteration. We used cognitively-intact mothers harbouring in heterozygosity the transgene for overexpressing the Swedish double mutant version of the human amyloid precursor protein (hAβPPswe). The phenotype of the offspring with or without the transgene resulting from crossing young Tg2576 females with wild-type males were compared with those of the offspring resulting from crossing wild-type females with Tg2576 males...
April 24, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29691439/reversal-of-memory-and-neuropsychiatric-symptoms-and-reduced-tau-pathology-by-selenium-in-3xtg-ad-mice
#9
Ann Van der Jeugd, Arnaldo Parra-Damas, Raquel Baeta-Corral, Carlos M Soto-Faguás, Tariq Ahmed, Frank M LaFerla, Lydia Giménez-Llort, Rudi D'Hooge, Carlos A Saura
Accumulation of amyloid-β plaques and tau contribute to the pathogenesis of Alzheimer's disease (AD), but it is unclear whether targeting tau pathology by antioxidants independently of amyloid-β causes beneficial effects on memory and neuropsychiatric symptoms. Selenium, an essential antioxidant element reduced in the aging brain, prevents development of neuropathology in AD transgenic mice at early disease stages. The therapeutic potential of selenium for ameliorating or reversing neuropsychiatric and cognitive behavioral symptoms at late AD stages is largely unknown...
April 24, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29691438/the-hippo-signaling-transducer-taz-regulates-mammary-gland-morphogenesis-and-carcinogen-induced-mammary-tumorigenesis
#10
Kayla E Denson, Ashley L Mussell, He Shen, Alexander Truskinovsky, Nuo Yang, Natesh Parashurama, Yanmin Chen, Costa Frangou, Fajun Yang, Jianmin Zhang
Hippo signaling pathway is an evolutionarily conserved pathway that controls organ size by regulating cell proliferation, apoptosis and stem cell self-renewal. TAZ (transcriptional coactivator with the PDZ-binding motif) is a key downstream effector of the mammalian Hippo pathway. Here, using a transgenic mouse model with mammary-gland-specific expression of constitutively active TAZ, we found that TAZ induction in mammary epithelial cells was associated with an increase in mammary glandular size, which probably resulted from adipocyte hypertrophy...
April 24, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29691378/blockade-of-the-c5a-c5ar-axis-alleviates-lung-damage-in-hdpp4-transgenic-mice-infected-with-mers-cov
#11
Yuting Jiang, Guangyu Zhao, Nianping Song, Pei Li, Yuehong Chen, Yan Guo, Junfeng Li, Lanying Du, Shibo Jiang, Renfeng Guo, Shihui Sun, Yusen Zhou
The pathogenesis of highly pathogenic Middle East respiratory syndrome coronavirus (MERS-CoV) remains poorly understood. In a previous study, we established an hDPP4-transgenic (hDPP4-Tg) mouse model in which MERS-CoV infection causes severe acute respiratory failure and high mortality accompanied by an elevated secretion of cytokines and chemokines. Since excessive complement activation is an important factor that contributes to acute lung injury after viral infection, in this study, we investigated the role of complement in MERS-CoV-induced lung damage...
April 24, 2018: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/29691291/rapid-integration-of-multi-copy-transgenes-using-optogenetic-mutagenesis-in-caenorhabditis-elegans
#12
Kentaro Noma, Yishi Jin
Stably transmitted transgenes are indispensable for labeling cellular components and manipulating cellular functions. In Caenorhabditis elegans , transgenes are generally generated as inheritable multi-copy extrachromosomal arrays, which can be stabilized in the genome through a mutagenesis-mediated integration process. Standard methods to integrate extrachromosomal arrays primarily use protocols involving ultraviolet light plus trimethylpsoralen or gamma- or X-ray irradiation, which are laborious and time-consuming...
April 24, 2018: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/29691253/the-inhibitory-nkr-p1b-clr-b-recognition-axis-facilitates-detection-of-oncogenic-transformation-and-cancer-immunosurveillance
#13
Miho Tanaka, Jason H Fine, Christina L Kirkham, Oscar A Aguilar, Antoaneta Belcheva, Alberto Martin, Troy Ketela, Jason Moffat, David Sj Allan, James R Carlyle
Natural killer (NK) cells express receptors specific for MHC class I (MHC-I) molecules involved in "missing-self" recognition of cancer and virus-infected cells. Here we elucidate the role of MHC-I-independent NKR-P1B:Clr-b interactions in the detection of oncogenic transformation by NK cells. Ras oncogene overexpression was found to promote a real-time loss of Clr-b on mouse fibroblasts and leukemia cells, mediated in part via the Raf/MEK/ERK and PI3K pathways. Ras-driven Clr-b downregulation occurred at the level of the Clrb (Clec2d) promoter, nascent Clr-b transcripts, and cell surface Clr-b protein, in turn promoting missing-self recognition via the NKR-P1B inhibitory receptor...
April 24, 2018: Cancer Research
https://www.readbyqxmd.com/read/29691064/novel-ace2-fc-chimeric-fusion-provides-long-lasting-hypertension-control-and-organ-protection-in-mouse-models-of-systemic-renin-angiotensin-system-activation
#14
Pan Liu, Jan Wysocki, Tomokazu Souma, Minghao Ye, Veronica Ramirez, Bisheng Zhou, Lisa D Wilsbacher, Susan E Quaggin, Daniel Batlle, Jing Jin
Angiotensin-converting enzyme 2 (ACE2) is a carboxypeptidase that potently degrades angiotensin II to angiotensin 1-7. Previous studies showed that injection of the enzymatic ectodomain of recombinant ACE2 (rACE2) markedly increases circulatory levels of ACE2 activity, and effectively lowered blood pressure in angiotensin II-induced hypertension. However, due to the short plasma half-life of rACE2, its therapeutic potential for chronic use is limited. To circumvent this, we generated a chimeric fusion of rACE2 and the Ig fragment Fc segment to increase its plasma stability...
April 21, 2018: Kidney International
https://www.readbyqxmd.com/read/29690919/lack-of-human-like-extracellular-sortilin-neuropathology-in-transgenic-alzheimer-s-disease-model-mice-and-macaques
#15
Feng-Qin Zhou, Juan Jiang, Chelsea M Griffith, Peter R Patrylo, Huaibin Cai, Yaping Chu, Xiao-Xin Yan
BACKGROUND: Alzheimer's disease (AD) is a devastating neurodegenerative disorder bearing multiple pathological hallmarks suggestive of complex cellular/molecular interplay during pathogenesis. Transgenic mice and nonhuman primates are used as disease models for mechanistic and translational research into AD; the extent to which these animal models recapitulate AD-type neuropathology is an issue of importance. Putative C-terminal fragments from sortilin, a member of the vacuolar protein sorting 10 protein (Vps10p) family, have recently been shown to deposit in the neuritic β-amyloid (Aβ) plaques in the human brain...
April 24, 2018: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/29690885/blockade-of-sustained-tumor-necrosis-factor-in-a-transgenic-model-of-progressive-autoimmune-encephalomyelitis-limits-oligodendrocyte-apoptosis-and-promotes-oligodendrocyte-maturation
#16
Alice Valentin-Torres, Carine Savarin, Joslyn Barnett, Cornelia C Bergmann
BACKGROUND: Tumor necrosis factor (TNF) is associated with several neurodegenerative disorders including multiple sclerosis (MS). Although TNF-targeted therapies have been largely unsuccessful in MS, recent preclinical data suggests selective soluble TNF inhibition can promote remyelination. This has renewed interest in regulation of TNF signaling in demyelinating disease, especially given the limited treatment options for progressive MS. Using a mouse model of progressive MS, this study evaluates the effects of sustained TNF on oligodendrocyte (OLG) apoptosis and OLG precursor cell (OPC) differentiation...
April 24, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29690874/optimal-control-of-malaria-combining-vector-interventions-and-drug-therapies
#17
Doran Khamis, Claire El Mouden, Klodeta Kura, Michael B Bonsall
BACKGROUND: The sterile insect technique and transgenic equivalents are considered promising tools for controlling vector-borne disease in an age of increasing insecticide and drug-resistance. Combining vector interventions with artemisinin-based therapies may achieve the twin goals of suppressing malaria endemicity while managing artemisinin resistance. While the cost-effectiveness of these controls has been investigated independently, their combined usage has not been dynamically optimized in response to ecological and epidemiological processes...
April 24, 2018: Malaria Journal
https://www.readbyqxmd.com/read/29690872/identification-of-a-neuronal-population-in-the-telencephalon-essential-for-fear-conditioning-in-zebrafish
#18
Pradeep Lal, Hideyuki Tanabe, Maximiliano L Suster, Deepak Ailani, Yuri Kotani, Akira Muto, Mari Itoh, Miki Iwasaki, Hironori Wada, Emre Yaksi, Koichi Kawakami
BACKGROUND: Fear conditioning is a form of learning essential for animal survival and used as a behavioral paradigm to study the mechanisms of learning and memory. In mammals, the amygdala plays a crucial role in fear conditioning. In teleost, the medial zone of the dorsal telencephalon (Dm) has been postulated to be a homolog of the mammalian amygdala by anatomical and ablation studies, showing a role in conditioned avoidance response. However, the neuronal populations required for a conditioned avoidance response via the Dm have not been functionally or genetically defined...
April 25, 2018: BMC Biology
https://www.readbyqxmd.com/read/29690504/selective-inhibition-of-histone-deacetylation-in-melanoma-increases-targeted-gene-delivery-by-a-bacteriophage-viral-vector
#19
Samuel Campbell, Keittisak Suwan, Sajee Waramit, Eric Ofori Aboagye, Amin Hajitou
The previously developed adeno-associated virus/phage (AAVP) vector, a hybrid between M13 bacteriophage (phage) viruses that infect bacteria only and human Adeno-Associated Virus (AAV), is a promising tool in targeted gene therapy against cancer. AAVP can be administered systemically and made tissue specific through the use of ligand-directed targeting. Cancer cells and tumor-associated blood vessels overexpress the αν integrin receptors, which are involved in tumor angiogenesis and tumor invasion...
April 21, 2018: Cancers
https://www.readbyqxmd.com/read/29689723/stereological-investigation-of-the-effects-of-treadmill-running-exercise-on-the-hippocampal-neurons-in-middle-aged-app-ps1-transgenic-mice
#20
Fenglei Chao, Lin Jiang, Yi Zhang, Chunni Zhou, Lei Zhang, Jing Tang, Xin Liang, Yingqiang Qi, Yanqing Zhu, Jing Ma, Yong Tang
The risk of cognitive decline during Alzheimer's disease (AD) can be reduced if physical activity is maintained; however, the specific neural events underlying this beneficial effect are still uncertain. To quantitatively investigate the neural events underlying the effect of running exercise on middle-aged AD subjects, 12-month-old male APP/PS1 mice were randomly assigned to a control group or running group, and age-matched non-transgenic littermates were used as a wild-type group. AD running group mice were subjected to a treadmill running protocol (regular and moderate intensity) for four months...
April 16, 2018: Journal of Alzheimer's Disease: JAD
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