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https://www.readbyqxmd.com/read/28550410/different-exogenous-sugars-affect-the-hormone-signal-pathway-and-sugar-metabolism-in-red-globe-vitis-vinifera-l-plantlets-grown-in-vitro-as-shown-by-transcriptomic-analysis
#1
Juan Mao, Wenfang Li, Baoqin Mi, Mohammed Mujitaba Dawuda, Alejandro Calderón-Urrea, Zonghuan Ma, Yongmei Zhang, Baihong Chen
Exogenously applied 2% fructose is the most appropriate carbon source that enhances photosynthesis and growth of grape plantlets compared with the same concentrations of sucrose and glucose. The role of the sugars was regulated by the expression of key candidate genes related to hormones, key metabolic enzymes, and sugar metabolism of grape plantlets ( Vitis vinifera L.) grown in vitro. The addition of sugars including sucrose, glucose, and fructose is known to be very helpful for the development of grape (V...
May 26, 2017: Planta
https://www.readbyqxmd.com/read/28550087/transcriptional-networks-in-rodent-models-support-a-role-for-gut-brain-communication-in-neurogenic-hypertension-a-review-of-the-evidence
#2
Jasenka Zubcevic, Ashley Baker, Christopher J Martyniuk
Hypertension (HTN) is the most prevalent condition observed in primary health care. Hypertension shows complex etiology, and neuroinflammation, overactive sympathetic drive, and the microbiome are associated with the disease. To obtain mechanistic perspective into neurogenic HTN, we first constructed a framework for transcriptional regulators of the disease using the Comparative Toxicogenomics Database. This approach yielded a core group of 178 transcripts that are prevalent in HTN, including leptin and neuropeptide Y...
May 26, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/28549990/early-transcriptome-responses-of-the-bovine-midcycle-corpus-luteum-to-prostaglandin-f2%C3%AE-includes-cytokine-signaling
#3
Heather Talbott, Xiaoying Hou, Fang Qiu, Pan Zhang, Chittibabu Guda, Fang Yu, Robert A Cushman, Jennifer R Wood, Cheng Wang, Andrea S Cupp, John S Davis
In ruminants, prostaglandin F2alpha (PGF2α)-mediated luteolysis is essential prior to estrous cycle resumption, and is a target for improving fertility. To deduce early PGF2α-provoked changes in the corpus luteum a short time-course (0.5-4 h) was performed on cows at midcycle. A microarray-determined transcriptome was established and examined by bioinformatic pathway analysis. Classic PGF2α effects were evident by changes in early response genes (FOS, JUN, ATF3) and prediction of active pathways (PKC, MAPK)...
May 23, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28549934/in-vitro-metabolomic-approaches-to-investigating-the-potential-biological-effects-of-phenolic-compounds-an-update
#4
REVIEW
Úrsula Catalán, Laura Barrubés, Rosa Maria Valls, Rosa Solà, Laura Rubió
Dietary phenolic compounds (PCs) have been receiving interest for their presumed roles in disease prevention. However, there is a lack of studies on the underlying molecular mechanisms. In this regard, in vitro metabolomic approaches are suitable for the investigation of the molecular changes in response to PC exposure. Up to date, the biological effects of PCs have only been examined for PCs from rosemary (Rosmarinus officinalis), olive oil, and resveratrol using cell-based metabolomic approach, although transcriptomic and/or proteomic studies have also been conducted in the same in vitro cell experiment in some cases...
May 23, 2017: Genomics, Proteomics & Bioinformatics
https://www.readbyqxmd.com/read/28549625/a-matter-of-maturity-the-impact-of-pre-mrna-processing-in-gene-expression-and-antigen-presentation
#5
Rodrigo Prado Martins, Robin Fåhraeus
RNA processing plays a pivotal role in the diversification of high eukaryotes transcriptome and proteome. The expression of gene products controlling a variety of cellular and physiological processes depends largely on a complex maturation process undergone by pre-mRNAs to become translation-competent mRNAs. Here we review the different mechanisms involved in the pre-mRNA processing and disclose their impact in the gene regulation process in eukaryotic cells. We describe some viral strategies targeting pre-mRNA processing to control gene expression and host immune response and discuss their relevance as tools for a better understanding of cell biology...
May 23, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28549198/de-novo-transcriptome-assembly-of-sugarcane-leaves-submitted-to-prolonged-water-deficit-stress
#6
A A Belesini, F M S Carvalho, B R Telles, G M de Castro, P F Giachetto, J S Vantini, S D Carlin, J O Cazetta, D G Pinheiro, M I T Ferro
Sugarcane production is strongly influenced by drought, which is a limiting factor for agricultural productivity in the world. In this study, the gene expression profiles obtained by de novo assembly of the leaf transcriptome of two sugarcane cultivars that differ in their physiological response to water deficit were evaluated by the RNA-Seq method: drought-tolerant cultivar (SP81-3250) and drought-sensitive cultivar (RB855453). For this purpose, plants were grown in a greenhouse for 60 days and were then submitted to three treatments: control (-0...
May 25, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28549159/a-non-photosynthetic-diatom-reveals-early-steps-of-reductive-evolution-in-plastids
#7
Ryoma Kamikawa, Daniel Moog, Stefan Zauner, Goro Tanifuji, Ken-Ichiro Ishida, Hideaki Miyashita, Shigeki Mayama, Tetsuo Hashimoto, Uwe-G Maier, John M Archibald, Yuji Inagaki
Non-photosynthetic plastids retain important biological functions and are indispensable for cell viability. However, the detailed processes underlying the loss of plastidal functions other than photosynthesis remain to be fully understood. In this study, we used transcriptomics, subcellular localization, and phylogenetic analyses to characterize the biochemical complexity of the non-photosynthetic plastids of the apochlorotic diatom Nitzschia sp. NIES-3581. We found that these plastids have lost isopentenyl pyrophosphate (IPP) biosynthesis and ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO)-based carbon fixation but have retained various proteins for other metabolic pathways, including amino acid biosynthesis, and a portion of the Calvin-Benson cycle comprised only of glycolysis/gluconeogenesis, and the reductive pentose phosphate pathway (rPPP)...
May 26, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/28548993/muscle-metabolism
#8
Nicolas Tardif, Jonathan Grip, Olav Rooyackers
PURPOSE OF REVIEW: To review the recent findings on metabolic derangements leading to loss of muscle mass and function. RECENT FINDINGS: Several recent studies investigated methods to assess muscle mass and function and its clinical relevance. These are also included. A few studies confirm that a low muscle mass is related to a worse outcome but also a compromised muscle function at discharge is related to long-term survival. A low quality of muscle assessed by the density of muscle from a computed tomography scan is related to mortality...
May 25, 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/28548702/p16-loss-and-e2f-cell-cycle-deregulation-in-infant-posterior-fossa-ependymoma
#9
Seth C Lummus, Andrew M Donson, Katherine Gowan, Kenneth L Jones, Rajeev Vibhakar, Nicholas K Foreman, B K Kleinschmidt-DeMasters
BACKGROUND: Posterior fossa (PF) ependymomas (EPNs) in infants less than 1 year of age (iEPN-PF) have a poorer clinical outcome than EPNs in older children. While radiation therapy is the standard of care for the latter, it is withheld in infants to avoid neurotoxicity to immature brain. It is unknown whether the adverse outcome in iEPN-PFs is due to treatment differences or aggressive biology. We examined this question using molecular profiling. METHODS: Six anaplastic iEPN-PFs were subjected to transcriptomic analysis and FISH for p16 loss and gains of 1q, and compared with anaplastic PF EPNs from older children...
May 26, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28545854/transcriptome-wide-identification-of-host-genes-targeted-by-tomato-spotted-wilt-virus-derived-small-interfering-rnas
#10
Shunmugiah V Ramesh, Sarah Williams, Madhu Kappagantu, Neena Mitter, Hanu R Pappu
RNA silencing mechanism functions as a major defense against invading viruses. The caveat in the RNA silencing mechanism is that the effector small interfering RNAs (siRNAs) act on any RNA transcripts with sequence complementarity irrespective of target's origin. A subset of highly expressed viral small interfering RNAs (vsiRNAs) derived from the tomato spotted wilt virus (TSWV; Tospovirus: Bunyaviridae) genome was analyzed for their propensity to downregulate the tomato transcriptome. A total of 11898 putative target sites on tomato transcripts were found to exhibit a propensity for down regulation by TSWV-derived vsiRNAs...
May 22, 2017: Virus Research
https://www.readbyqxmd.com/read/28545577/proanthocyanidin-accumulation-and-transcriptional-responses-in-the-seed-coat-of-cranberry-beans-phaseolus-vulgaris-l-with-different-susceptibility-to-postharvest-darkening
#11
José A Freixas Coutin, Seth Munholland, Anjali Silva, Sanjeena Subedi, Lewis Lukens, William L Crosby, K Peter Pauls, Gale G Bozzo
BACKGROUND: Edible dry beans (Phaseolus vulgaris L.) that darken during postharvest storage are graded lower and are less marketable than their non-darkened counterparts. Seed coat darkening in susceptible genotypes is dependent upon the availability of proanthocyanidins, and their subsequent oxidation to reactive quinones. Mature cranberry beans lacking this postharvest darkening trait tend to be proanthocyanidin-deficient, although the underlying molecular and biochemical determinants for this metabolic phenomenon are unknown...
May 25, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28545453/genome-wide-methylation-analysis-reveals-differentially-methylated-loci-that-are-associated-with-an-age-dependent-increase-in-bovine-fibroblast-response-to-lps
#12
Filiz T Korkmaz, David E Kerr
BACKGROUND: Differences in DNA methylation are known to contribute to the development of immune-related disorders in humans but relatively little is known about how methylation regulates immune function in cattle. Utilizing whole-transcriptome analyses of bovine dermal fibroblasts, we have previously identified an age and breed-dependent up-regulation of genes within the toll-like receptor 4 (TLR4) pathway that correlates with enhanced fibroblast production of IL-8 in response to lipopolysaccharide (LPS)...
May 25, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28545403/long-lasting-effect-of-obesity-on-skeletal-muscle-transcriptome
#13
Ilhem Messaoudi, Mithila Handu, Maham Rais, Suhas Sureshchandra, Byung S Park, Suzanne S Fei, Hollis Wright, Ashley E White, Ruhee Jain, Judy L Cameron, Kerri M Winters-Stone, Oleg Varlamov
BACKGROUND: Reduced physical activity and increased intake of calorically-dense diets are the main risk factors for obesity, glucose intolerance, and type 2 diabetes. Chronic overnutrition and hyperglycemia can alter gene expression, contributing to long-term obesity complications. While caloric restriction can reduce obesity and glucose intolerance, it is currently unknown whether it can effectively reprogram transcriptome to a pre-obesity level. The present study addressed this question by the preliminary examination of the transcriptional dynamics in skeletal muscle after exposure to overnutrition and following caloric restriction...
May 25, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28545396/transcriptomic-resources-for-the-medicinal-legume-mucuna-pruriens-de-novo-transcriptome-assembly-annotation-identification-and-validation-of-est-ssr-markers
#14
N Sathyanarayana, Ranjith Kumar Pittala, Pankaj Kumar Tripathi, Ratan Chopra, Heikham Russiachand Singh, Vikas Belamkar, Pardeep Kumar Bhardwaj, Jeff J Doyle, Ashley N Egan
BACKGROUND: The medicinal legume Mucuna pruriens (L.) DC. has attracted attention worldwide as a source of the anti-Parkinson's drug L-Dopa. It is also a popular green manure cover crop that offers many agronomic benefits including high protein content, nitrogen fixation and soil nutrients. The plant currently lacks genomic resources and there is limited knowledge on gene expression, metabolic pathways, and genetics of secondary metabolite production. Here, we present transcriptomic resources for M...
May 25, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28544973/pegylation-of-a-tlr2-agonist-based-vaccine-delivery-system-improves-antigen-trafficking-and-the-magnitude-of-ensuing-antibody-and-cd8-t-cell-responses
#15
Toshiki Sekiya, Junya Yamagishi, John Henry V Gray, Paul G Whitney, Axel Martinelli, Weiguang Zeng, Chinn Yi Wong, Chihiro Sugimoto, David C Jackson, Brendon Y Chua
The lipopeptide R4Pam2Cys is an agonist for toll-like receptor-2 (TLR2), a key pathogen-associated molecular pattern receptor expressed on many antigen-presenting cells such as dendritic cells (DCs). Electrostatic association of R4Pam2Cys with soluble protein antigens significantly enhances their immunogenicity and there is evidence to suggest that reducing the size of suitably adjuvanted-antigen complexes in solution may further improve their immunostimulatory capabilities. In this study, we investigated how incorporation of polyethylene glycol (PEG) into R4Pam2Cys affects the size, activity and efficacy of formed antigen-lipopeptide complexes...
May 11, 2017: Biomaterials
https://www.readbyqxmd.com/read/28543596/transcriptional-regulation-of-hormone-synthesis-and-signaling-pathways-by-overexpressing-cytokinin-synthesis-contributes-to-improved-drought-tolerance-in-creeping-bentgrass
#16
Yi Xu, Patrick Burgess, Bingru Huang
The objective of this study was to investigate transcriptomic changes and molecular factors regulated by cytokinins that may contribute to improved drought tolerance in creeping bentgrass (Agrostis stolonifera) overexpressing adenine isopentenyltransferase (ipt). Wild-type (WT) and ipt-transgenic plants were maintained well irrigated or exposed to 21 d of drought stress in growth chambers. Transcriptomic analysis conducted by RNA-seq revealed 661 and 648 up-regulated and 764 and 862 down-regulated drought-responsive genes (DRGs) in the WT and ipt-transgenic plants, respectively, under drought stress using adjusted p-value of 0...
May 24, 2017: Physiologia Plantarum
https://www.readbyqxmd.com/read/28542576/ebola-virus-glycoprotein-directly-triggers-t-lymphocyte-death-despite-of-the-lack-of-infection
#17
Mathieu Iampietro, Patrick Younan, Andrew Nishida, Mukta Dutta, Ndongala Michel Lubaki, Rodrigo I Santos, Richard A Koup, Michael G Katze, Alexander Bukreyev
Fatal outcomes of Ebola virus (EBOV) infections are typically preceded by a 'sepsis-like' syndrome and lymphopenia despite T cells being resistant to Ebola infection. The mechanisms that lead to T lymphocytes death remain largely unknown; however, the degree of lymphopenia is highly correlative with fatalities. Here we investigated whether the addition of EBOV or its envelope glycoprotein (GP) to isolated primary human CD4+ T cells induced cell death. We observed a significant decrease in cell viability in a GP-dependent manner, which is suggestive of a direct role of GP in T cell death...
May 22, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28542439/host-mediated-inflammatory-influence-on-glioblastoma-multiforme-recurrence-following-high-dose-ionizing-radiation
#18
J Tyson McDonald, Xuefeng Gao, Cole Steber, Jawon Lee Breed, Caitlin Pollock, Lili Ma, Lynn Hlatky
Despite optimal clinical treatment, glioblastoma multiforme (GBM) inevitably recurs. Standard treatment of GBM, exposes patients to radiation which kills tumor cells, but also modulates the molecular fingerprint of any surviving tumor cells and the cross-talk between those cells and the host. Considerable investigation of short-term (hours to days) post-irradiation tumor cell response has been undertaken, yet long-term responses (weeks to months) which are potentially even more informative of recurrence, have been largely overlooked...
2017: PloS One
https://www.readbyqxmd.com/read/28542341/transcriptome-and-proteomic-analyses-reveal-multiple-differences-associated-with-chloroplast-development-in-the-spaceflight-induced-wheat-albino-mutant-mta
#19
Kui Shi, Jiayu Gu, Huijun Guo, Linshu Zhao, Yongdun Xie, Hongchun Xiong, Junhui Li, Shirong Zhao, Xiyun Song, Luxiang Liu
Chloroplast development is an integral part of plant survival and growth, and occurs in parallel with chlorophyll biosynthesis. However, little is known about the mechanisms underlying chloroplast development in hexaploid wheat. Here, we obtained a spaceflight-induced wheat albino mutant mta. Chloroplast ultra-structural observation showed that chloroplasts of mta exhibit abnormal morphology and distribution compared to wild type. Photosynthetic pigments content was also significantly decreased in mta. Transcriptome and chloroplast proteome profiling of mta and wild type were done to identify differentially expressed genes (DEGs) and proteins (DEPs), respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28542284/haemocytes-collected-from-experimentally-infected-pacific-oysters-crassostrea-gigas-detection-of-ostreid-herpesvirus-1-dna-rna-and-proteins-in-relation-with-inhibition-of-apoptosis
#20
Claire Martenot, Ophélie Gervais, Bruno Chollet, Maryline Houssin, Tristan Renault
Recent transcriptomic approaches focused on anti-viral immunity in molluscs lead to the assumption that the innate immune system, such as apoptosis, plays a crucial role against ostreid herpesvirus type 1 (OsHV-1), infecting Pacific cupped oyster, Crassostrea gigas. Apoptosis constitutes a major mechanism of anti-viral response by limiting viral spread and eliminating infected cells. In this way, an OsHV-1 challenge was performed and oysters were monitored at three times post injection to investigate viral infection and host response: 2h (early after viral injection in the adductor muscle), 24h (intermediate time), and 48h (just before first oyster mortality record)...
2017: PloS One
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