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https://www.readbyqxmd.com/read/28644509/comparative-transcriptomic-analysis-of-two-important-life-stages-of-angiostrongylus-cantonensis-fifth-stage-larvae-and-female-adults
#1
Liang Yu, Binbin Cao, Ying Long, Meks Tukayo, Chonglv Feng, Wenzhen Fang, Damin Luo
The mechanisms involved in the fast growth of Angiostrongylus cantonensis from fifth-stage larvae (L5) to female adults and how L5 breaks through the blood-brain barrier in a permissive host remain unclear. In this work, we compared the transcriptomes of these two life stages to identify the main factors involved in the rapid growth and transition to adulthood. RNA samples from the two stages were sequenced and assembled de novo. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses of 1,346 differentially expressed genes between L5 and female adults was then undertaken...
April 2017: Genetics and Molecular Biology
https://www.readbyqxmd.com/read/28644126/extensive-horizontal-gene-transfer-in-cheese-associated-bacteria
#2
Kevin S Bonham, Benjamin E Wolfe, Rachel J Dutton
Acquisition of genes through horizontal gene transfer (HGT) allows microbes to rapidly gain new capabilities and adapt to new or changing environments. Identifying widespread HGT regions within multispecies microbiomes can pinpoint the molecular mechanisms that play key roles in microbiome assembly. We sought to identify horizontally transferred genes within a model microbiome, the cheese rind. Comparing 31 newly-sequenced and 134 previously sequenced bacterial isolates from cheese rinds, we identified over 200 putative horizontally transferred genomic regions containing 4,844 protein coding genes...
June 23, 2017: ELife
https://www.readbyqxmd.com/read/28643015/the-role-of-screening-mri-in-the-era-of-next-generation-sequencing-and-moderate-risk-genetic-mutations
#3
REVIEW
Sarah Macklin, Jennifer Gass, Ghada Mitri, Paldeep S Atwal, Stephanie Hines
With the advent of next-generation sequencing, the ability to rapidly analyze numerous genes simultaneously has led to the creation of large cancer gene panels. Some of these genes, like BRCA1 and BRCA2, have been heavily researched and have well-established management guidelines. Other more newly established genes, like ATM, CHEK2, and PALB2, have previously had less robust research surrounding them which has limited the ability to create accurate risk estimates. With their inclusion on gene panels, there has been more pressure to produce management guidelines for patients discovered to carry pathogenic variants in these genes...
June 22, 2017: Familial Cancer
https://www.readbyqxmd.com/read/28642846/decreased-fitness-and-virulence-in-st10-escherichia-coli-harboring-blandm-5-and-mcr-1-against-a-st4981-strain-with-blandm-5
#4
Yawei Zhang, Kang Liao, Hua Gao, Qi Wang, Xiaojuan Wang, Henan Li, Ruobing Wang, Hui Wang
Although coexistence of blaNDM-5 and mcr-1 in Escherichia coli has been reported, little is known about the fitness and virulence of such strains. Three carbapenem-resistant Escherichia coli (GZ1, GZ2, and GZ3) successively isolated from one patient in 2015 were investigated for microbiological fitness and virulence. GZ1 and GZ2 were also resistant to colistin. To verify the association between plasmids and fitness, growth kinetics of the transconjugants were performed. We also analyzed genomic sequences of GZ2 and GZ3 using PacBio sequencing...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28642469/tracing-the-epidemic-history-of-hiv-1-crf01_ae-clusters-using-near-complete-genome-sequences
#5
Xingguang Li, Haizhou Liu, Lu Liu, Yi Feng, Marcia L Kalish, Simon Y W Ho, Yiming Shao
Human immunodeficiency virus (HIV) has a number of circulating recombinant forms that are the product of recombination between different HIV subtypes. The first circulating recombinant form of HIV-1 to be identified was CRF01_AE, which originated in Central Africa and is now most prevalent in Southeast and East Asia. In this study, we investigated the timescale, evolutionary history, and population genetics of the HIV-1 CRF01_AE strains primarily responsible for the epidemic in Asia. A further aim of our study was to define and standardize the nomenclature and provide well-characterized reference sequences for the phylogenetic transmission clusters of CRF01_AE...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28642451/il-10-plays-a-pivotal-role-in-tamoxifen-induced-spasmolytic-polypeptide-expressing-metaplasia-in-gastric-mucosa
#6
Chansu Lee, Hyuk Lee, Seo Yun Hwang, Chang Mo Moon, Sung Noh Hong
Background/Aims: Gastric cancer evolves in the pathologic mucosal milieu, and its development is characterized by both the loss of acid-secreting parietal cells and mucosal cell metaplasia, called spasmolytic polypeptide-expressing metaplasia (SPEM). Cytokines, such as interleukin (IL)-10, IL-1β, and IL-6, play a key role in gastric carcinogenesis. However, changes in the cytokine profile of SPEM have not been evaluated. Methods: To induce SPEM in mouse stomachs, C57BL/6 mice were intraperitoneally injected with tamoxifen and sacrificed at 3, 10, and 21 days after treatment...
June 26, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28642154/a-boosting-skin-vaccination-with-dissolving-microneedle-patch-encapsulating-m2e-vaccine-broadens-the-protective-efficacy-of-conventional-influenza-vaccines
#7
Wandi Zhu, Winston Pewin, Chao Wang, Yuan Luo, Gilbert X Gonzalez, Teena Mohan, Mark R Prausnitz, Bao-Zhong Wang
The biodegradable microneedle patch (MNP) is a novel technology for vaccine delivery that could improve the immunogenicity of vaccines. To broaden the protective efficiency of conventional influenza vaccines, a new 4M2e-tFliC fusion protein construct containing M2e sequences from different subtypes was generated. Purified fusion protein was encapsulated into MNPs with a biocompatible polymer for use as a boosting vaccine. The results demonstrated that mice receiving a conventional inactivated vaccine followed by a skin-applied dissolving 4M2e-tFliC MNP boost could better maintain the humoral antibody response than that by the conventional vaccine-prime alone...
June 19, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28641582/a-multicentre-randomised-controlled-trial-of-levetiracetam-versus-phenytoin-for-convulsive-status-epilepticus-in-children-protocol-convulsive-status-epilepticus-paediatric-trial-consept-a-predict-study
#8
Stuart R Dalziel, Jeremy Furyk, Megan Bonisch, Ed Oakley, Meredith Borland, Jocelyn Neutze, Susan Donath, Cynthia Sharpe, Simon Harvey, Andrew Davidson, Simon Craig, Natalie Phillips, Shane George, Arjun Rao, Nicholas Cheng, Michael Zhang, Kam Sinn, Amit Kochar, Christine Brabyn, Franz E Babl
BACKGROUND: Convulsive status epilepticus (CSE) is the most common life-threatening childhood neurological emergency. Despite this, there is a lack of high quality evidence supporting medication use after first line benzodiazepines, with current treatment protocols based solely on non-experimental evidence and expert opinion. The current standard of care, phenytoin, is only 60% effective, and associated with considerable adverse effects. A newer anti-convulsant, levetiracetam, can be given faster, is potentially more efficacious, with a more tolerable side effect profile...
June 22, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28641501/hematological-characterizations-and-molecular-diagnostic-aspects-of-hb-wiangpapao-%C3%AE-44-ce2-pro%C3%A2-ser-%C3%AE-1-ccg-tcg-hba1-c-133c-t-a-new-%C3%AE-globin-variant-found-in-a-pregnant-thai-woman
#9
Sitthichai Panyasai, Sakorn Pornprasert
We report the hematological parameters and provide a rapid molecular analysis method for detection of Hb Wiangpapao [α44(CE2)Pro→Ser, CCG>TCG; HBA1: c.133C>T], a new α-globin variant found in a pregnant Thai woman. Her red cell indices were measured by an automated blood counter. The results were: red blood cell (RBC) count 4.03 × 10(12)/L, Hb 13.1 (g/dL), packed cell volume (PCV) 0.39 L/L, mean corpuscular volume (MCV) 97.0 fL, mean corpuscular hemoglobin (Hb) (MCH) 32.5 pg, mean corpuscular Hb concentration (MCHC) 33...
June 23, 2017: Hemoglobin
https://www.readbyqxmd.com/read/28640612/crispr-cas9-based-genome-editing-for-disease-modeling-and-therapy-challenges-and-opportunities-for-nonviral-delivery
#10
Hong-Xia Wang, Mingqiang Li, Ciaran M Lee, Syandan Chakraborty, Hae-Won Kim, Gang Bao, Kam W Leong
Genome editing offers promising solutions to genetic disorders by editing DNA sequences or modulating gene expression. The clustered regularly interspaced short palindromic repeats (CRISPR)/associated protein 9 (CRISPR/Cas9) technology can be used to edit single or multiple genes in a wide variety of cell types and organisms in vitro and in vivo. Herein, we review the rapidly developing CRISPR/Cas9-based technologies for disease modeling and gene correction and recent progress toward Cas9/guide RNA (gRNA) delivery based on viral and nonviral vectors...
June 22, 2017: Chemical Reviews
https://www.readbyqxmd.com/read/28639674/transition-from-disordered-aggregates-to-ordered-lattices-kinetic-control-of-the-assembly-of-a-computationally-designed-peptide
#11
Yu Tian, Huixi Violet Zhang, Kristi L Kiick, Jeffery G Saven, Darrin J Pochan
Natural biomolecular self-assembly typically occurs under a narrow range of solution conditions, and the design of sequences that can form prescribed structures under a range of such conditions would be valuable in the bottom-up assembly of predetermined nanostructures. We present a computationally designed peptide that robustly self-assembles into regular arrays under a wide range of solution pH and temperature conditions. Controling the solution conditions provides the opportunity to exploit a simple and reproducible approach for altering the pathway of peptide solution self-assembly...
June 22, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28639134/kifc1-and-myosin-va-two-motors-for-acrosomal-biogenesis-and-nuclear-shaping-during-spermiogenesis-of-portunus-trituberculatus
#12
Dan-Dan Ma, Meng-Ying Pan, Cong-Cong Hou, Fu-Qing Tan, Wan-Xi Yang
To investigate the molecular mechanisms underlying the spermiogenesis of the swimming crab Portunus trituberculatus, full lengths of motor proteins KIFC1 and myosin Va were cloned by rapid-amplification of cDNA ends from P. trituberculatus testes cDNA, and their respective probes and specific antibodies were used to track their localization during sperm maturation. Antisense probes were designed from the gene sequences and used to detect the mRNA levels of each gene. According to the results of fluorescence in situ hybridization (FISH), the transcription of kifc1 and myosin Va began at the mid-stage of spermatids, with the kifc1 mRNA being most active at the location where the acrosome cap was formed and the myosin Va was more concentrated in the acrosome complex...
June 21, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28639105/towards-efficiency-in-rare-disease-research-what-is-distinctive-and-important
#13
REVIEW
Jinmeng Jia, Tieliu Shi
Characterized by their low prevalence, rare diseases are often chronically debilitating or life threatening. Despite their low prevalence, the aggregate number of individuals suffering from a rare disease is estimated to be nearly 400 million worldwide. Over the past decades, efforts from researchers, clinicians, and pharmaceutical industries have been focused on both the diagnosis and therapy of rare diseases. However, because of the lack of data and medical records for individual rare diseases and the high cost of orphan drug development, only limited progress has been achieved...
June 16, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28639053/managing-the-genomic-revolution-in-cancer-diagnostics
#14
Doreen Nguyen, Christopher D Gocke
Molecular tumor profiling is now a routine part of patient care, revealing targetable genomic alterations and molecularly distinct tumor subtypes with therapeutic and prognostic implications. The widespread adoption of next-generation sequencing technologies has greatly facilitated clinical implementation of genomic data and opened the door for high-throughput multigene-targeted sequencing. Herein, we discuss the variability of cancer genetic profiling currently offered by clinical laboratories, the challenges of applying rapidly evolving medical knowledge to individual patients, and the need for more standardized population-based molecular profiling...
June 21, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28639048/evaluating-anorexia-related-brain-atrophy-using-mp2rage-based-morphometry
#15
José Boto, Georgios Gkinis, Alexis Roche, Tobias Kober, Bénédicte Maréchal, Nadia Ortiz, Karl-Olof Lövblad, François Lazeyras, Maria Isabel Vargas
AIM: To evaluate brain atrophy in anorexic patients by automated cerebral segmentation with the magnetization-prepared 2 rapid acquisition gradient echo (MP2RAGE) MRI sequence. MATERIAL AND METHODS: Twenty patients (female; mean age, 27.9 years), presenting consecutively for brain MRI between August 2014-December 2016 with clinical suspicion of anorexia nervosa and BMI<18.5 kg/m(2) were included. Controls were ten healthy females (mean age, 26.5 years). Automated brain morphometry was performed based on MP2RAGE...
June 21, 2017: European Radiology
https://www.readbyqxmd.com/read/28638988/same-day-genomic-and-epigenomic-diagnosis-of-brain-tumors-using-real-time-nanopore-sequencing
#16
Philipp Euskirchen, Franck Bielle, Karim Labreche, Wigard P Kloosterman, Shai Rosenberg, Mailys Daniau, Charlotte Schmitt, Julien Masliah-Planchon, Franck Bourdeaut, Caroline Dehais, Yannick Marie, Jean-Yves Delattre, Ahmed Idbaih
Molecular classification of cancer has entered clinical routine to inform diagnosis, prognosis, and treatment decisions. At the same time, new tumor entities have been identified that cannot be defined histologically. For central nervous system tumors, the current World Health Organization classification explicitly demands molecular testing, e.g., for 1p/19q-codeletion or IDH mutations, to make an integrated histomolecular diagnosis. However, a plethora of sophisticated technologies is currently needed to assess different genomic and epigenomic alterations and turnaround times are in the range of weeks, which makes standardized and widespread implementation difficult and hinders timely decision making...
June 21, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28638833/isolation-and-abiotic-stress-resistance-analyses-of-a-catalase-gene-from-ipomoea-batatas-l-lam
#17
Bin Yong, Xiaoyan Wang, Pan Xu, Haiyan Zheng, Xueting Fei, Zixi Hong, Qinqin Ma, Yuzhi Miao, Xianghua Yuan, Yusong Jiang, Huanhuan Shao
As an indicator of the antioxidant capability of plants, catalase can detoxify reactive oxygen species (ROS) generated by environmental stresses. Sweet potato is one of the top six most important crops in the world. However, its catalases remain largely unknown. In this study, a catalase encoding gene, IbCAT2 (accession number: KY615708), was identified and cloned from sweet potato cv. Xushu 18. It contained a 1479 nucleotides' open reading frame (ORF). S-R-L, Q-K-L, and a putative calmodulin binding domain were located at the C-terminus of IbCAT2, which suggests that IbCAT2 could be a peroxisomal catalase...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28638727/identification-of-an-immunogenic-neo-epitope-encoded-by-mouse-sarcoma-using-cxcr3-ligand-mrnas-as-sensors
#18
Keisuke Fujii, Yoshihiro Miyahara, Naozumi Harada, Daisuke Muraoka, Mitsuhiro Komura, Rui Yamaguchi, Hideo Yagita, Junko Nakamura, Sahoko Sugino, Satoshi Okumura, Seiya Imoto, Satoru Miyano, Hiroshi Shiku
The CXCR3 ligands CXCL9, 10, and 11 play critical roles in the amplification of immune responses by recruiting CXCR3(+) immune effector cells to the tumor site. Taking advantage of this property of CXCR3 ligands, we aimed to establish a novel approach to identify immunogenic mutated-antigens. We examined the feasibility of using CXCR3 ligand mRNAs as sensors for detection of specific immune responses in human and murine systems. We further investigated whether this approach is applicable for the identification of immunogenic mutated-antigens by using murine sarcoma lines...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28638596/environmental-insults-critical-triggers-for-amyotrophic-lateral-sclerosis
#19
REVIEW
Bing Yu, Roger Pamphlett
BACKGROUND: Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease characterised by a rapid loss of lower and upper motor neurons. As a complex disease, the ageing process and complicated gene-environment interactions are involved in the majority of cases. MAIN BODY: Significant advances have been made in unravelling the genetic susceptibility to ALS with massively parallel sequencing technologies, while environmental insults remain a suspected but largely unexplored source of risk...
2017: Translational Neurodegeneration
https://www.readbyqxmd.com/read/28638438/real-time-monitoring-of-ptahmgb-activity-in-poplar-transactivation-assays
#20
José M Ramos-Sánchez, Paolo M Triozzi, Alicia Moreno-Cortés, Daniel Conde, Mariano Perales, Isabel Allona
BACKGROUND: Precise control of gene expression is essential to synchronize plant development with the environment. In perennial plants, transcriptional regulation remains poorly understood, mainly due to the long time required to perform functional studies. Transcriptional reporters based on luciferase have been useful to study circadian and diurnal regulation of gene expression, both by transcription factors and chromatin remodelers. The high mobility group proteins are considered transcriptional chaperones that also modify the chromatin architecture...
2017: Plant Methods
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