keyword
MENU ▼
Read by QxMD icon Read
search

Genetic conversion

keyword
https://www.readbyqxmd.com/read/28427182/identification-of-dbccr1-as-a-suppressor-in-the-development-of-lung-cancer-that-is-associated-with-increased-dna-methyltransferase-1
#1
Guoren Zhou, Jinjun Ye, Ying Fang, Zhi Zhang, Jingyuan Zhang, Lei Sun, Jifeng Feng
Accumulating evidence has pointed to a role of the CpG island hypermethylation in the regulation of cancer-related genes in tumor progression. However, the biological impacts in cancer pathogenesis associated with down-regulation of such gene targets remains elusive. Here we focused on a potential target of hypermethylation, DBCCR1 (deleted in bladder cancer chromosome region 1), a gene encoding a candidate tumor suppressor. We found that the expression of DBCCR1 is significantly lower in the lung cancer tissues compared with adjacent non-tumor tissues of patients...
March 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423456/progesterone-resistance-in-endometriosis-origins-consequences-and-interventions
#2
Bansari G Patel, Martin Rudnicki, Jie Yu, Yimin Shu, Robert N Taylor
Endometriosis is a common cause of pelvic pain and affects up to 10% of women of reproductive age. Aberrant progesterone signaling in the endometrium plays a significant role in impaired decidualization and establishment of ectopic endometrial implants. Eutopic endometrial cells from women with endometriosis fail to downregulate genes needed for decidualization, such as those involved in cell cycle regulation, leading to unbridled proliferation. Several causes of progesterone resistance in the endometrium have been postulated, including congenital "preconditioning", whereby the in utero environment renders infants susceptible to neonatal uterine bleeding and endometriosis...
April 19, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28421372/vascular-development-of-the-grapevine-vitis-vinifera-l-inflorescence-rachis-in-response-to-flower-number-plant-growth-regulators-and-defoliation
#3
Aude M Gourieroux, Bruno P Holzapfel, Margaret E McCully, Geoffrey R Scollary, Suzy Y Rogiers
The grapevine inflorescence is a determinate panicle and as buds emerge, shoot, flower and rachis development occur simultaneously. The growth and architecture of the rachis is determined by genetic and environmental factors but here we examined the role of flower and leaf number as well as hormones on its elongation and vascular development. The consequences of rachis morphology and vascular area on berry size and composition were also assessed. One week prior to anthesis, Merlot and Cabernet Sauvignon field vines were exposed to manual flower removal, exogenous plant growth regulators or pre-bloom leaf removal...
April 18, 2017: Journal of Plant Research
https://www.readbyqxmd.com/read/28420811/the-t-allele-of-rs8075977-in-the-5-flanking-region-of-the-pedf-gene-is-associated-with-reduced-risk-of-coronary-artery-disease-in-elderly-chinese-men
#4
Shou-Yuan Ma, Yuan-Yuan Guo, Shu-Xia Wang, Jin-Xin Shi, Jie Liu, Jian-Feng Liu, Ping Zhu
Coronary artery disease (CAD) is a multifactorial disease with a genetic component. Pigment epithelium-derived factor (PEDF) exerts anti-inflammatory, anti-oxidant, anti-thrombotic, and anti-angiogenic effects and thus has received increasing attention as a sensitive biomarker of atherosclerosis and CAD. To explore the potential association between PEDF single nucleotide polymorphisms (SNPs) and CAD, we performed this case-control study of consecutive elderly Chinese Han male patients (n = 416) and age-matched male controls (n = 528) without a history of CAD or electrocardiographic signs of CAD...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28420710/reciprocal-proteasome-mediated-degradation-of-pifs-and-hfr1-underlying-photomorphogenic-development-in-arabidopsis
#5
Xiaosa Xu, Praveen Kumar Kathare, Vinh Ngoc Pham, Qingyun Bu, Andrew Nguyen, Enamul Huq
The phytochrome-mediated regulation of photomorphogenesis under red and far-red light conditions involves both positive and negatively acting factors. The positively acting factors (e.g., HY5/HFR1/LAF1 and others) are degraded in the dark to prevent photomorphogenesis. By contrast, the negatively acting factors (e.g., PIFs) are degraded in response to light to promote photomorphogenesis. Here we show that the negatively acting factor, PIF1 is also degraded in the dark by direct heterodimerization with the positively acting factor, HFR1...
April 18, 2017: Development
https://www.readbyqxmd.com/read/28418444/associations-between-cancer-predisposition-testing-panel-genes-and-breast-cancer
#6
Fergus J Couch, Hermela Shimelis, Chunling Hu, Steven N Hart, Eric C Polley, Jie Na, Emily Hallberg, Raymond Moore, Abigail Thomas, Jenna Lilyquist, Bingjian Feng, Rachel McFarland, Tina Pesaran, Robert Huether, Holly LaDuca, Elizabeth C Chao, David E Goldgar, Jill S Dolinsky
Importance: Germline pathogenic variants in BRCA1 and BRCA2 predispose to an increased lifetime risk of breast cancer. However, the relevance of germline variants in other genes from multigene hereditary cancer testing panels is not well defined. Objective: To determine the risks of breast cancer associated with germline variants in cancer predisposition genes. Design, Setting, and Participants: A study population of 65 057 patients with breast cancer receiving germline genetic testing of cancer predisposition genes with hereditary cancer multigene panels...
April 13, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28415023/drosophila-models-of-prionopathies-insight-into-prion-protein-function-transmission-and-neurotoxicity
#7
REVIEW
Pedro Fernandez-Funez, Jonatan Sanchez-Garcia, Diego E Rincon-Limas
Prion diseases (PrD) are unique neurodegenerative conditions with sporadic, genetic, and infectious etiologies. The agent responsible for these pathologies is a misfolded conformation of the prion protein (PrP). Although a process of autocatalytic "conversion" is known to mediate disease transmission, important gaps still remain regarding the physiological function of PrP and its relevance to pathogenesis, the molecular and cellular mechanisms mediating neurotoxicity and transmission, and the PrP conformations responsible for neurotoxicity...
April 14, 2017: Current Opinion in Genetics & Development
https://www.readbyqxmd.com/read/28413712/variation-within-mbp-gene-predicts-disease-course-in-multiple-sclerosis
#8
Yuan Zhou, Steve Simpson, Jac C Charlesworth, Ingrid van der Mei, Robyn M Lucas, Anne-Louise Ponsonby, Bruce V Taylor
OBJECTIVE: Prognosis following a first demyelinating event is difficult to predict, with no genetic markers of MS progression currently identified. Myelin basic protein (MBP) is a major component of the myelin sheath of CNS neurons and may play a central role in demyelinating diseases such as MS. However, genetic variation in MBP has not been implicated in MS onset risk in large genome-wide association studies. We hypothesized that genetic variations in MBP may be a determinant of MS clinical course...
April 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28409526/the-impact-of-coat-protein-mediated-virus-resistance-in-applied-plant-pathology-and-basic-research
#9
John A Lindbo, Bryce W Falk
Worldwide, plant viruses cause serious reductions in marketable crop yield and in some cases even plant death. In most cases, the most effective way to control virus diseases is through genetically controlled resistance. However, developing virus-resistant (VR) crops through traditional breeding can take many years, and in some cases is not even possible. Because of this, the demonstration of the first VR transgenic plants in 1985 generated much attention. This seminal report served as an inflection point for research in both basic and applied plant pathology, the results of which have dramatically changed both basic research and in a few cases, commercial crop production...
April 14, 2017: Phytopathology
https://www.readbyqxmd.com/read/28407125/cell-fate-modification-toward-the-hepatic-lineage-by-extrinsic-factors
#10
Masaki Kawamata, Atsushi Suzuki
The lineage of a somatic cell can be altered by targeting its signaling networks with small molecules and/or genetically altering the expression of key transcription factors. Depending on the combination of factors, fibroblasts can be fully reprogrammed into induced pluripotent stem (iPS) cells or directly converted into specific cell lineages, bypassing the pluripotent state. The generation of defined target cells will enormously benefit patients who require cell transplantation therapy. In the decade since iPS cells were first generated, many cell types have been induced from fibroblasts by direct conversion, including hepatocytes...
April 12, 2017: Journal of Biochemistry
https://www.readbyqxmd.com/read/28405378/a-unified-model-of-the-standard-genetic-code
#11
Marco V José, Gabriel S Zamudio, Eberto R Morgado
The Rodin-Ohno (RO) and the Delarue models divide the table of the genetic code into two classes of aminoacyl-tRNA synthetases (aaRSs I and II) with recognition from the minor or major groove sides of the tRNA acceptor stem, respectively. These models are asymmetric but they are biologically meaningful. On the other hand, the standard genetic code (SGC) can be derived from the primeval RNY code (R stands for purines, Y for pyrimidines and N any of them). In this work, the RO-model is derived by means of group actions, namely, symmetries represented by automorphisms, assuming that the SGC originated from a primeval RNY code...
March 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28402854/in%C3%A2-vivo-interplay-between-p27-kip1-gata3-atoh1-and-pou4f3-converts-non-sensory-cells-to-hair-cells-in-adult-mice
#12
Bradley J Walters, Emily Coak, Jennifer Dearman, Grace Bailey, Tetsuji Yamashita, Bryan Kuo, Jian Zuo
Hearing loss is widespread and persistent because mature mammalian auditory hair cells (HCs) are nonregenerative. In mice, the ability to regenerate HCs from surrounding supporting cells (SCs) declines abruptly after postnatal maturation. We find that combining p27(Kip1) deletion with ectopic ATOH1 expression surmounts this age-related decline, leading to conversion of SCs to HCs in mature mouse cochleae and after noise damage. p27(Kip1) deletion, independent of canonical effects on Rb-family proteins, upregulated GATA3, a co-factor for ATOH1 that is lost from SCs with age...
April 11, 2017: Cell Reports
https://www.readbyqxmd.com/read/28401151/white-matter-integrity-in-genetic-high-risk-individuals-and-first-episode-schizophrenia-patients-similarities-and-disassociations
#13
Yifang Zhou, Jie Liu, Naomi Driesen, Fay Womer, Kaiyuan Chen, Ye Wang, Xiaowei Jiang, Qian Zhou, Chuan Bai, Dahai Wang, Yanqing Tang, Fei Wang
White matter (WM) neuroimaging studies have shown varied findings at different stages of schizophrenia (SZ). Understanding these variations may elucidate distinct markers of genetic vulnerability and conversion to psychosis. To examine the similarities and differences in WM connectivity between those at-risk for and in early stages of SZ, a cross-sectional diffusion tensor imaging study of 48 individuals diagnosed with first-episode SZ (FE-SZ), 37 nonpsychotic individuals at a high genetic risk of SZ (GHR-SZ), and 67 healthy controls (HC) was conducted...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28399184/genetic-factors-influencing-frontostriatal-dysfunction-and-the-development-of-dementia-in-parkinson-s-disease
#14
Ismael Huertas, Silvia Jesús, Francisco Javier García-Gómez, José Antonio Lojo, Inmaculada Bernal-Bernal, Marta Bonilla-Toribio, Juan Francisco Martín-Rodriguez, David García-Solís, Pilar Gómez-Garre, Pablo Mir
The dual syndrome hypothesis for cognitive impairment in Parkinson's disease (PD) establishes a dichotomy between a frontrostriatal dopamine-mediated syndrome, which leads to executive deficits, and a posterior cortical syndrome, which leads to dementia. Certain genes have been linked to these syndromes although the exact contribution is still controversial. The study's objective was to investigate the role of APOE, MAPT, COMT, SNCA and GBA genes in the dual syndromes. We genotyped APOE (rs429358 and rs7412), MAPT (rs9468), COMT (rs4680) and SNCA (rs356219) risk polymorphisms and sequenced GBA in a cohort of 298 PD patients...
2017: PloS One
https://www.readbyqxmd.com/read/28397857/reproductive-stage-physiological-and-transcriptional-responses-to-salinity-stress-in-reciprocal-populations-derived-from-tolerant-horkuch-and-susceptible-ir29-rice
#15
Samsad Razzaque, Taslima Haque, Sabrina M Elias, Md Sazzadur Rahman, Sudip Biswas, Scott Schwartz, Abdelbagi M Ismail, Harkamal Walia, Thomas E Juenger, Zeba I Seraj
Global increase in salinity levels has made it imperative to identify novel sources of genetic variation for tolerance traits, especially in rice. The rice landrace Horkuch, endemic to the saline coastal area of Bangladesh, was used in this study as the source of tolerance in reciprocal crosses with the sensitive but high-yielding IR29 variety for discovering transcriptional variation associated with salt tolerance in the resulting populations. The cytoplasmic effect of the Horkuch background in leaves under stress showed functional enrichment for signal transduction, DNA-dependent regulation and transport activities...
April 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28397763/endoplasmic-reticulum-stress-and-homeostasis-in-reproductive-physiology-and-pathology
#16
REVIEW
Elif Guzel, Sefa Arlier, Ozlem Guzeloglu-Kayisli, Mehmet Selcuk Tabak, Tugba Ekiz, Nihan Semerci, Kellie Larsen, Frederick Schatz, Charles Joseph Lockwood, Umit Ali Kayisli
The endoplasmic reticulum (ER), comprises 60% of the total cell membrane and interacts directly or indirectly with several cell organelles i.e., Golgi bodies, mitochondria and proteasomes. The ER is usually associated with large numbers of attached ribosomes. During evolution, ER developed as the specific cellular site of synthesis, folding, modification and trafficking of secretory and cell-surface proteins. The ER is also the major intracellular calcium storage compartment that maintains cellular calcium homeostasis...
April 8, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28396299/plasma-cytokine-profiling-to-predict-susceptibility-to-acute-mountain-sickness
#17
Hui Lu, Rong Wang, Wenbin Li, Hua Xie, Chang Wang, Ying Hao, Yuhuan Sun, Zhengping Jia
Extensive studies have been performed on acute mountain sickness (AMS), but biomarkers predicting AMS are lacking. Presently, the mainstay methods to identify AMS biomarkers include proteomic and genetic methods at high altitudes or in hypoxic simulated chambers. In the present study, we compared plasma cytokine profiles between AMS-susceptible individuals and AMS-resistant individuals at low altitude by cytokine array analysis. In total, 75 differentially expressed cytokines were identified between AMS-susceptible individuals and AMS-resistant individuals, most involved in inflammation...
November 1, 2016: European Cytokine Network
https://www.readbyqxmd.com/read/28394352/spatial-heterogeneity-in-medulloblastoma
#18
A Sorana Morrissy, Florence M G Cavalli, Marc Remke, Vijay Ramaswamy, David J H Shih, Borja L Holgado, Hamza Farooq, Laura K Donovan, Livia Garzia, Sameer Agnihotri, Erin N Kiehna, Eloi Mercier, Chelsea Mayoh, Simon Papillon-Cavanagh, Hamid Nikbakht, Tenzin Gayden, Jonathon Torchia, Daniel Picard, Diana M Merino, Maria Vladoiu, Betty Luu, Xiaochong Wu, Craig Daniels, Stuart Horswell, Yuan Yao Thompson, Volker Hovestadt, Paul A Northcott, David T W Jones, John Peacock, Xin Wang, Stephen C Mack, Jüri Reimand, Steffen Albrecht, Adam M Fontebasso, Nina Thiessen, Yisu Li, Jacqueline E Schein, Darlene Lee, Rebecca Carlsen, Michael Mayo, Kane Tse, Angela Tam, Noreen Dhalla, Adrian Ally, Eric Chuah, Young Cheng, Patrick Plettner, Haiyan I Li, Richard D Corbett, Tina Wong, William Long, James Loukides, Pawel Buczkowicz, Cynthia E Hawkins, Uri Tabori, Brian R Rood, John S Myseros, Roger J Packer, Andrey Korshunov, Peter Lichter, Marcel Kool, Stefan M Pfister, Ulrich Schüller, Peter Dirks, Annie Huang, Eric Bouffet, James T Rutka, Gary D Bader, Charles Swanton, Yusanne Ma, Richard A Moore, Andrew J Mungall, Jacek Majewski, Steven J M Jones, Sunit Das, David Malkin, Nada Jabado, Marco A Marra, Michael D Taylor
Spatial heterogeneity of transcriptional and genetic markers between physically isolated biopsies of a single tumor poses major barriers to the identification of biomarkers and the development of targeted therapies that will be effective against the entire tumor. We analyzed the spatial heterogeneity of multiregional biopsies from 35 patients, using a combination of transcriptomic and genomic profiles. Medulloblastomas (MBs), but not high-grade gliomas (HGGs), demonstrated spatially homogeneous transcriptomes, which allowed for accurate subgrouping of tumors from a single biopsy...
April 10, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28392745/cultivation-strategies-for-growth-of-uncultivated-bacteria
#19
Sonia R Vartoukian
BACKGROUND: The majority of environmental bacteria and around a third of oral bacteria remain uncultivated. Furthermore, several bacterial phyla have no cultivable members and are recognised only by detection of their DNA by molecular methods. Possible explanations for the resistance of certain bacteria to cultivation in purity in vitro include: unmet fastidious growth requirements; inhibition by environmental conditions or chemical factors produced by neighbouring bacteria in mixed cultures; or conversely, dependence on interactions with other bacteria in the natural environment, without which they cannot survive in isolation...
November 2016: Journal of Oral Biosciences
https://www.readbyqxmd.com/read/28391631/estimates-of-heritability-of-atrial-fibrillation-in-the-standardbred-racehorse
#20
M Kraus, P W Physick-Sheard, L F Brito, F S Schenkel
BACKGROUND: The number of Standardbred racehorses admitted to the Ontario Veterinary College Teaching Hospital (OVCTH, Guelph, Canada) for treatment of atrial fibrillation (AF) has been on the rise since the early 1990s. A small number of sires have been contributing to a large proportion of cases, indicating there may be a genetic predisposition to the arrhythmia in this breed. OBJECTIVES: The objectives of this study were to determine the heritability of AF in Standardbred horses and whether heritability of the arrhythmia differs across gaits and/or sexes...
April 9, 2017: Equine Veterinary Journal
keyword
keyword
70357
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"