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https://www.readbyqxmd.com/read/27918480/cord-blood-dna-methylation-biomarkers-for-predicting-neurodevelopmental-outcomes
#1
REVIEW
Nicolette A Hodyl, Claire T Roberts, Tina Bianco-Miotto
Adverse environmental exposures in pregnancy can significantly alter the development of the fetus resulting in impaired child neurodevelopment. Such exposures can lead to epigenetic alterations like DNA methylation, which may be a marker of poor cognitive, motor and behavioral outcomes in the infant. Here we review studies that have assessed DNA methylation in cord blood following maternal exposures that may impact neurodevelopment of the child. We also highlight some key studies to illustrate the potential for DNA methylation to successfully identify infants at risk for poor outcomes...
December 3, 2016: Genes
https://www.readbyqxmd.com/read/27918472/a-review-of-computational-methods-for-finding-non-coding-rna-genes
#2
REVIEW
Qaisar Abbas, Syed Mansoor Raza, Azizuddin Ahmed Biyabani, Muhammad Arfan Jaffar
Finding non-coding RNA (ncRNA) genes has emerged over the past few years as a cutting-edge trend in bioinformatics. There are numerous computational intelligence (CI) challenges in the annotation and interpretation of ncRNAs because it requires a domain-related expert knowledge in CI techniques. Moreover, there are many classes predicted yet not experimentally verified by researchers. Recently, researchers have applied many CI methods to predict the classes of ncRNAs. However, the diverse CI approaches lack a definitive classification framework to take advantage of past studies...
December 3, 2016: Genes
https://www.readbyqxmd.com/read/27918468/transcriptome-analysis-of-the-tadpole-shrimp-triops-longicaudatus-by-illumina-paired-end-sequencing-assembly-annotation-and-marker-discovery
#3
Jiyeon Seong, Se Won Kang, Bharat Bhusan Patnaik, So Young Park, Hee Ju Hwang, Jong Min Chung, Dae Kwon Song, Mi Young Noh, Seung-Hwan Park, Gwang Joo Jeon, Hong Sik Kong, Soonok Kim, Ui Wook Hwang, Hong Seog Park, Yeon Soo Han, Yong Seok Lee
The tadpole shrimp (Triops longicaudatus) is an aquatic crustacean that helps control pest populations. It inhabits freshwater ponds and pools and has been described as a living fossil. T. longicaudatus was officially declared an endangered species South Korea in 2005; however, through subsequent protection and conservation management, it was removed from the endangered species list in 2012. The limited number of available genetic resources on T. longicaudatus makes it difficult to obtain valuable genetic information for marker-aided selection programs...
December 2, 2016: Genes
https://www.readbyqxmd.com/read/27918467/phylogenetic-relationships-of-the-fern-cyrtomium-falcatum-dryopteridaceae-from-dokdo-island-sea-of-east-japan-based-on-chloroplast-genome-sequencing
#4
Gurusamy Raman, Kyoung Su Choi, SeonJoo Park
Cyrtomium falcatum is a popular ornamental fern cultivated worldwide. Native to the Korean Peninsula, Japan, and Dokdo Island in the Sea of Japan, it is the only fern present on Dokdo Island. We isolated and characterized the chloroplast (cp) genome of C. falcatum, and compared it with those of closely related species. The genes trnV-GAC and trnV-GAU were found to be present within the cp genome of C. falcatum, whereas trnP-GGG and rpl21 were lacking. Moreover, cp genomes of Cyrtomium devexiscapulae and Adiantum capillus-veneris lack trnP-GGG and rpl21, suggesting these are not conserved among angiosperm cp genomes...
December 2, 2016: Genes
https://www.readbyqxmd.com/read/27916940/h-ns-its-family-members-and-their-regulation-of-virulence-genes-in-shigella-species
#5
REVIEW
Michael A Picker, Helen J Wing
The histone-like nucleoid structuring protein (H-NS) has played a key role in shaping the evolution of Shigella spp., and provides the backdrop to the regulatory cascade that controls virulence by silencing many genes found on the large virulence plasmid. H-NS and its paralogue StpA are present in all four Shigella spp., but a second H-NS paralogue, Sfh, is found in the Shigella flexneri type strain 2457T, which is routinely used in studies of Shigella pathogenesis. While StpA and Sfh have been proposed to serve as "molecular backups" for H-NS, the apparent redundancy of these proteins is questioned by in vitro studies and work done in Escherichia coli...
December 1, 2016: Genes
https://www.readbyqxmd.com/read/27916935/genome-wide-survey-reveals-transcriptional-differences-underlying-the-contrasting-trichome-phenotypes-of-two-sister-desert-poplars
#6
Jianchao Ma, Xiaodong He, Xiaotao Bai, Zhimin Niu, Bingbing Duan, Ningning Chen, Xuemin Shao, Dongshi Wan
Trichomes, which are widely used as an important diagnostic characteristic in plant species delimitation, play important roles in plant defense and adaptation to adverse environments. In this study, we used two sister poplar species, Populus pruinosa and Populus euphratica-which have, respectively, dense and sparse trichomes-to examine the genetic differences associated with these contrasting phenotypes. The results showed that 42 and 45 genes could be identified as candidate genes related to trichomes in P...
December 1, 2016: Genes
https://www.readbyqxmd.com/read/27916924/divergent-expression-patterns-in-two-vernicia-species-revealed-the-potential-role-of-the-hub-gene-vmap2-erf036-in-resistance-to-fusarium-oxysporum-in-vernicia-montana
#7
Qiyan Zhang, Ming Gao, Liwen Wu, Yangdong Wang, Yicun Chen
Tung oil tree (Vernicia fordii) is a promising industrial oil crop; however, this tree is highly susceptible to Fusarium wilt disease. Conversely, Vernicia montana is resistant to the pathogen. The APETALA2/ethylene-responsive element binding factor (AP2/ERF) transcription factor superfamily has been reported to play a significant role in resistance to Fusarium oxysporum. In this study, comprehensive analysis identified 75 and 81 putative Vf/VmAP2/ERF transcription factor-encoding genes in V. fordii and V. montana, respectively, which were divided into AP2, ERF, related to ABI3 and VP1 (RAV) and Soloist families...
December 1, 2016: Genes
https://www.readbyqxmd.com/read/27916887/cucumber-metallothionein-like-2-csmtl2-exhibits-metal-binding-properties
#8
Yu Pan, Yanglu Pan, Junpeng Zhai, Yan Xiong, Jinhua Li, Xiaobing Du, Chenggang Su, Xingguo Zhang
We identified a novel member of the metallothionein (MT) family, Cucumis sativus metallothionein-like 2 (CsMTL2), by screening a young cucumber fruit complementary DNA (cDNA) library. The CsMTL2 encodes a putative 77-amino acid Class II MT protein that contains two cysteine (Cys)-rich domains separated by a Cys-free spacer region. We found that CsMTL2 expression was regulated by metal stress and was specifically induced by Cd(2+) treatment. We investigated the metal-binding characteristics of CsMTL2 and its possible role in the homeostasis and/or detoxification of metals by heterologous overexpression in Escherichia coli cells...
November 30, 2016: Genes
https://www.readbyqxmd.com/read/27916885/development-of-genetic-testing-for-fragile-x-syndrome-and-associated-disorders-and-estimates-of-the-prevalence-of-fmr1-expansion-mutations
#9
REVIEW
James N Macpherson, Anna Murray
The identification of a trinucleotide (CGG) expansion as the chief mechanism of mutation in Fragile X syndrome in 1991 heralded a new chapter in molecular diagnostic genetics and generated a new perspective on mutational mechanisms in human genetic disease, which rapidly became a central paradigm ("dynamic mutation") as more and more of the common hereditary neurodevelopmental disorders were ascribed to this novel class of mutation. The progressive expansion of a CGG repeat in the FMR1 gene from "premutation" to "full mutation" provided an explanation for the "Sherman paradox," just as similar expansion mechanisms in other genes explained the phenomenon of "anticipation" in their pathogenesis...
November 30, 2016: Genes
https://www.readbyqxmd.com/read/27916860/novel-pigt-variant-in-two-brothers-expansion-of-the-multiple-congenital-anomalies-hypotonia-seizures-syndrome-3-phenotype
#10
Nadia Skauli, Sean Wallace, Samuel C C Chiang, Tuva Barøy, Asbjørn Holmgren, Asbjørg Stray-Pedersen, Yenan T Bryceson, Petter Strømme, Eirik Frengen, Doriana Misceo
Biallelic PIGT variants were previously reported in seven patients from three families with Multiple Congenital Anomalies-Hypotonia Seizures Syndrome 3 (MCAHS3), characterized by epileptic encephalopathy, hypotonia, global developmental delay/intellectual disability, cerebral and cerebellar atrophy, craniofacial dysmorphisms, and skeletal, ophthalmological, cardiac, and genitourinary abnormalities. We report a novel homozygous PIGT missense variant c.1079G>T (p.Gly360Val) in two brothers with several of the typical features of MCAHS3, but in addition, pyramidal tract neurological signs...
November 29, 2016: Genes
https://www.readbyqxmd.com/read/27916859/postnatal-gene-therapy-improves-spatial-learning-despite-the-presence-of-neuronal-ectopia-in-a-model-of-neuronal-migration-disorder
#11
Huaiyu Hu, Yu Liu, Kevin Bampoe, Yonglin He, Miao Yu
Patients with type II lissencephaly, a neuronal migration disorder with ectopic neurons, suffer from severe mental retardation, including learning deficits. There is no effective therapy to prevent or correct the formation of neuronal ectopia, which is presumed to cause cognitive deficits. We hypothesized that learning deficits were not solely caused by neuronal ectopia and that postnatal gene therapy could improve learning without correcting the neuronal ectopia formed during fetal development. To test this hypothesis, we evaluated spatial learning of cerebral cortex-specific protein O-mannosyltransferase 2 (POMT2, an enzyme required for O-mannosyl glycosylation) knockout mice and compared to the knockout mice that were injected with an adeno-associated viral vector (AAV) encoding POMT2 into the postnatal brains with Barnes maze...
November 29, 2016: Genes
https://www.readbyqxmd.com/read/27916857/in-silico-characterization-of-mirna-and-long-non-coding-rna-interplay-in-multiple-myeloma
#12
Domenica Ronchetti, Martina Manzoni, Katia Todoerti, Antonino Neri, Luca Agnelli
The identification of deregulated microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) in multiple myeloma (MM) has progressively added a further level of complexity to MM biology. In addition, the cross-regulation between lncRNAs and miRNAs has begun to emerge, and theoretical and experimental studies have demonstrated the competing endogenous RNA (ceRNA) activity of lncRNAs as natural miRNA decoys in pathophysiological conditions, including cancer. Currently, information concerning lncRNA and miRNA interplay in MM is virtually absent...
November 29, 2016: Genes
https://www.readbyqxmd.com/read/27886132/the-future-is-the-past-methylation-qtls-in-schizophrenia
#13
REVIEW
Anke Hoffmann, Michael Ziller, Dietmar Spengler
Genome-wide association studies (GWAS) have remarkably advanced insight into the genetic basis of schizophrenia (SCZ). Still, most of the functional variance in disease risk remains unexplained. Hence, there is a growing need to map genetic variability-to-genes-to-functions for understanding the pathophysiology of SCZ and the development of better treatments. Genetic variation can regulate various cellular functions including DNA methylation, an epigenetic mark with important roles in transcription and the mediation of environmental influences...
November 24, 2016: Genes
https://www.readbyqxmd.com/read/27886077/magnetofection-enhances-lentiviral-mediated-transduction-of-airway-epithelial-cells-through-extracellular-and-cellular-barriers
#14
Stefano Castellani, Clara Orlando, Annalucia Carbone, Sante Di Gioia, Massimo Conese
Gene transfer to airway epithelial cells is hampered by extracellular (mainly mucus) and cellular (tight junctions) barriers. Magnetofection has been used to increase retention time of lentiviral vectors (LV) on the cellular surface. In this study, magnetofection was investigated in airway epithelial cell models mimicking extracellular and cellular barriers. Bronchiolar epithelial cells (H441 line) were evaluated for LV-mediated transduction after polarization onto filters and dexamethasone (dex) treatment, which induced hemicyst formation, with or without magnetofection...
November 23, 2016: Genes
https://www.readbyqxmd.com/read/27879657/screening-for-mutations-in-the-tbx1-gene-on-chromosome-22q11-2-in-schizophrenia
#15
Lieh-Yung Ping, Yang-An Chuang, Shih-Hsin Hsu, Hsin-Yao Tsai, Min-Chih Cheng
A higher-than-expected frequency of schizophrenia in patients with 22q11.2 deletion syndrome suggests that chromosome 22q11.2 harbors the responsive genes related to the pathophysiology of schizophrenia. The TBX1 gene, which maps to the region on chromosome 22q11.2, plays a vital role in neuronal functions. Haploinsufficiency of the TBX1 gene is associated with schizophrenia endophenotype. This study aimed to investigate whether the TBX1 gene is associated with schizophrenia. We searched for mutations in the TBX1 gene in 652 patients with schizophrenia and 567 control subjects using a re-sequencing method and conducted a reporter gene assay...
November 22, 2016: Genes
https://www.readbyqxmd.com/read/27869718/endocrine-dysfunction-in-female-fmr1-premutation-carriers-characteristics-and-association-with-ill-health
#16
Sonya Campbell, Sarah E A Eley, Andrew G McKechanie, Andrew C Stanfield
Female FMR1 premutation carriers (PMC) have been suggested to be at greater risk of ill health, in particular endocrine dysfunction, compared to the general population. We set out to review the literature relating to endocrine dysfunction, including premature ovarian insufficiency (POI), in female PMCs, and then to consider whether endocrine dysfunction in itself may be predictive of other illnesses in female PMCs. A systematic review and pilot data from a semi-structured health questionnaire were used. Medline, Embase, and PsycInfo were searched for papers concerning PMCs and endocrine dysfunction...
November 18, 2016: Genes
https://www.readbyqxmd.com/read/27869716/a-genome-wide-identification-and-analysis-of-the-basic-helix-loop-helix-transcription-factors-in-brown-planthopper-nilaparvata-lugens
#17
Pin-Jun Wan, San-Yue Yuan, Wei-Xia Wang, Xu Chen, Feng-Xiang Lai, Qiang Fu
The basic helix-loop-helix (bHLH) transcription factors in insects play essential roles in multiple developmental processes including neurogenesis, sterol metabolism, circadian rhythms, organogenesis and formation of olfactory sensory neurons. The identification and function analysis of bHLH family members of the most destructive insect pest of rice, Nilaparvata lugens, may provide novel tools for pest management. Here, a genome-wide survey for bHLH sequences identified 60 bHLH sequences (NlbHLHs) encoded in the draft genome of N...
November 18, 2016: Genes
https://www.readbyqxmd.com/read/27869662/the-cell-killing-mechanisms-of-hydroxyurea
#18
REVIEW
Amanpreet Singh, Yong-Jie Xu
Hydroxyurea is a well-established inhibitor of ribonucleotide reductase that has a long history of scientific interest and clinical use for the treatment of neoplastic and non-neoplastic diseases. It is currently the staple drug for the management of sickle cell anemia and chronic myeloproliferative disorders. Due to its reversible inhibitory effect on DNA replication in various organisms, hydroxyurea is also commonly used in laboratories for cell cycle synchronization or generating replication stress. However, incubation with high concentrations or prolonged treatment with low doses of hydroxyurea can result in cell death and the DNA damage generated at arrested replication forks is generally believed to be the direct cause...
November 17, 2016: Genes
https://www.readbyqxmd.com/read/27834918/identification-of-novel-equine-equus-caballus-tendon-markers-using-rna-sequencing
#19
Jan M Kuemmerle, Felix Theiss, Michal J Okoniewski, Fabienne A Weber, Sonja Hemmi, Ali Mirsaidi, Peter J Richards, Paolo Cinelli
Although several tendon-selective genes exist, they are also expressed in other musculoskeletal tissues. As cell and tissue engineering is reliant on specific molecular markers to discriminate between cell types, tendon-specific genes need to be identified. In order to accomplish this, we have used RNA sequencing (RNA-seq) to compare gene expression between tendon, bone, cartilage and ligament from horses. We identified several tendon-selective gene markers, and established eyes absent homolog 2 (EYA2) and a G-protein regulated inducer of neurite outgrowth 3 (GPRIN3) as specific tendon markers using RT-qPCR...
November 10, 2016: Genes
https://www.readbyqxmd.com/read/27834914/gene-therapy-a-paradigm-shift-in-dentistry
#20
REVIEW
Nida Siddique, Hira Raza, Sehrish Ahmed, Zohaib Khurshid, Muhammad Sohail Zafar
Gene therapy holds a promising future for bridging the gap between the disciplines of medicine and clinical dentistry. The dynamic treatment approaches of gene therapy have been advancing by leaps and bounds. They are transforming the conventional approaches into more precise and preventive ones that may limit the need of using drugs and surgery. The oral cavity is one of the most accessible areas for the clinical applications of gene therapy for various oral tissues. The idea of genetic engineering has become more exciting due to its advantages over other treatment modalities...
November 10, 2016: Genes
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