keyword
MENU ▼
Read by QxMD icon Read
search

Replication Stress

keyword
https://www.readbyqxmd.com/read/29049935/intranasal-oxytocin-in-the-treatment-of-anorexia-nervosa-randomized-controlled-trial-during-re-feeding
#1
Janice Russell, Sarah Maguire, Glenn E Hunt, Alice Kesby, Anastasia Suraev, Jordyn Stuart, Jessica Booth, Iain S McGregor
BACKGROUND: Nutritional rehabilitation in anorexia nervosa (AN) is impeded by fear of food, eating and change leading to treatment resistance. Oxytocin (OT) exerts prosocial effects and modulates trust, fear, anxiety and neuroplasticity. The current placebo-controlled RCT examined the effects of intranasal oxytocin (IN-OT) in AN. The aim was to ascertain whether repeated doses of IN-OT enhance treatment outcomes in AN. METHODS: AN patients self-administered 36 IU IN-OT or placebo daily for 4-6 weeks during hospital treatment...
October 14, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29049932/determinants-of-comorbid-depression-and-anxiety-postnatally-a-longitudinal-cohort-study-of-chinese-canadian-women
#2
Cindy-Lee Dennis, Hilary K Brown, Susitha Wanigaratne, Simone N Vigod, Sophie Grigoriadis, Kenneth Fung, Flavia Marini, Sarah Brennenstuhl
BACKGROUND: Women with comorbid depression and anxiety in the postpartum period experience more complex and severe symptoms than women with depression or anxiety alone; however, little is known about what influences these symptoms, especially among women from specific ethnic backgrounds. The objective of this study was to identify determinants of comorbid depression and anxiety symptomatology by 24 weeks postpartum in a cohort of Chinese-Canadian women. METHODS: A longitudinal cohort study was completed where 549 Chinese immigrant and Canadian-born women in Toronto were followed to 24 weeks postpartum...
September 25, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29048744/comorbidity-of-alcohol-use-disorder-and-chronic-pain-genetic-influences-on-brain-reward-and-stress-systems
#3
REVIEW
Ellen W Yeung, Jason G Craggs, Ian R Gizer
Alcohol use disorder (AUD) is highly comorbid with chronic pain (CP). Evidence has suggested that neuroadaptive processes characterized by reward deficit and stress surfeit are involved in the development of AUD and pain chronification. Neurological data suggest that shared genetic architecture associated with the reward and stress systems may contribute to the comorbidity of AUD and CP. This monograph first delineates the prevailing theories of the development of AUD and pain chronification focusing on the reward and stress systems...
October 19, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/29048384/the-th17-lineage-from-barrier-surfaces-homeostasis-to-autoimmunity-cancer-and-hiv-1-pathogenesis
#4
REVIEW
Vanessa Sue Wacleche, Alan Landay, Jean-Pierre Routy, Petronela Ancuta
The T helper 17 (Th17) cells represent a subset of CD4+ T-cells with unique effector functions, developmental plasticity, and stem-cell features. Th17 cells bridge innate and adaptive immunity against fungal and bacterial infections at skin and mucosal barrier surfaces. Although Th17 cells have been extensively studied in the context of autoimmunity, their role in various other pathologies is underexplored and remains an area of open investigation. This review summarizes the history of Th17 cell discovery and the current knowledge relative to the beneficial role of Th17 cells in maintaining mucosal immunity homeostasis...
October 19, 2017: Viruses
https://www.readbyqxmd.com/read/29046440/innate-sensing-of-influenza-a-virus-hemagglutinin-glycoproteins-by-the-host-endoplasmic-reticulum-er-stress-pathway-triggers-a-potent-antiviral-response-via-er-associated-protein-degradation
#5
Dylan A Frabutt, Bin Wang, Sana Riaz, Richard C Schwartz, Yong-Hui Zheng
Innate immunity provides an immediate defense against infection after host cells sense "danger" signals from microbes. Endoplasmic reticulum (ER) stress arises from accumulation of misfolded/unfolded proteins when protein load overwhelms the ER folding capacity, which activates the unfolded protein response (UPR) to restore the ER homeostasis. Here, we show that a mechanism for antiviral innate immunity is triggered after the ER stress pathway senses viral glycoproteins. When hemagglutinin (HA) glycoproteins from influenza A virus (IAV) are expressed in cells, ER stress is induced, resulting in rapid HA degradation via proteasomes...
October 18, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29044766/do-men-and-women-with-intellectual-disabilities-understand-death
#6
A Y M Chow, J McEvoy, I K N Chan, M Borschel, J H L Yuen, J Y M Lo
BACKGROUND: Individuals with ID are often withheld information about the death of their loved ones as it has often been thought that they do not understand death or cannot grieve. This grief exacerbates the stress of individuals with ID as they often encounter secondary losses such as transitioning to a care facility. The aim of this study is to investigate men and women with ID understanding death concepts and to what extent. METHOD: Adopting a stratified random sampling method, 156 Chinese people with ID were invited to join the study...
October 18, 2017: Journal of Intellectual Disability Research: JIDR
https://www.readbyqxmd.com/read/29043653/quantitative-analysis-of-dna-damage-signaling-responses-to-chemical-and-genetic-perturbations
#7
Francisco M Bastos de Oliveira, Dongsung Kim, Michael Lanz, Marcus B Smolka
Phosphorylation-mediated signaling is essential for maintenance of the eukaryotic genome. The evolutionarily conserved kinases ATR and ATM sense specific DNA structures generated upon DNA damage or replication stress and mediate an extensive signaling network that impinges upon most nuclear processes. ATR/ATM signaling is highly regulated and can function in a context-dependent manner. Thus, the ability to quantitatively monitor most, if not all, signaling events in this network is essential to investigate the mechanisms by which kinases maintain genome integrity...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29043642/the-detection-and-analysis-of-chromosome-fragile-sites
#8
Victoria A Bjerregaard, Özgün Özer, Ian D Hickson, Ying Liu
A fragile site is a chromosomal locus that is prone to form a gap or constriction visible within a condensed metaphase chromosome, particularly following exposure of cells to DNA replication stress. Based on their frequency, fragile sites are classified as either common (CFSs; present in all individuals) or rare (RFSs; present in only a few individuals). Interest in fragile sites has remained high since their discovery in 1965, because of their association with human disease. CFSs are recognized as drivers of oncogene activation and genome instability in cancer cells, while some RFSs are associated with neurodegenerative diseases...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29043630/dynamic-architecture-of-eukaryotic-dna-replication-forks-in-vivo-visualized-by-electron-microscopy
#9
Ralph Zellweger, Massimo Lopes
The DNA replication process can be heavily perturbed by several different conditions of genotoxic stress, particularly relevant for cancer onset and therapy. The combination of psoralen crosslinking and electron microscopy has proven instrumental to reveal the fine architecture of in vivo DNA replication intermediates and to uncover their remodeling upon specific conditions of genotoxic stress. The replication structures are stabilized in vivo (by psoralen crosslinking) prior to extraction and enrichment procedures, allowing their visualization at the transmission electron microscope...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29043627/quantitative-bromodeoxyuridine-immunoprecipitation-analyzed-by-high-throughput-sequencing-qbrdu-seq-or-qbu
#10
Joanna E Haye-Bertolozzi, Oscar M Aparicio
Incorporation into DNA of nucleoside analogs like 5-bromo-2'-deoxyuridine (BrdU) is a powerful tool for in vivo studies of DNA synthesis during replication and repair. Immunoprecipitation of BrdU-labeled DNA analyzed by DNA sequencing (BrdU-IP-seq) allows for genome-wide, sequence-specific tracking of replication origin and replication fork dynamics under different conditions, such as DNA damage and replication stress, and in mutant strains. We have recently developed a quantitative method for BrdU-IP-seq (qBrdU-seq) involving DNA barcoding to enable quantitative analysis of multiple experimental samples subjected to BrdU-IP-seq...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29042194/knockdown-of-rmi1-impairs-dna-repair-under-dna-replication-stress
#11
Chang Xu, Lianying Fang, Yangyang Kong, Changyan Xiao, Mengmeng Yang, Li-Qing Du, Qiang Liu
RMI1 (RecQ-mediated genome instability protein 1) forms a conserved BTR complex with BLM, Topo IIIα, and RMI2, and its absence causes genome instability. It has been revealed that RMI1 localizes to nuclear foci with BLM and Topo IIIα in response to replication stress, and that RMI1 functions downstream of BLM in promoting replication elongation. However, the precise functions of RMI1 during replication stress are not completely understood. Here we report that RMI1 knockdown cells are hypersensitive to hydroxyurea (HU)...
October 14, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29040642/dynamic-dna-binding-junction-recognition-and-g4-melting-activity-underlie-the-telomeric-and-genome-wide-roles-of-human-cst
#12
Anukana Bhattacharjee, Yongyao Wang, Jiajie Diao, Carolyn M Price
Human CST (CTC1-STN1-TEN1) is a ssDNA-binding complex that helps resolve replication problems both at telomeres and genome-wide. CST resembles Replication Protein A (RPA) in that the two complexes harbor comparable arrays of OB-folds and have structurally similar small subunits. However, the overall architecture and functions of CST and RPA are distinct. Currently, the mechanism underlying CST action at diverse replication issues remains unclear. To clarify CST mechanism, we examined the capacity of CST to bind and resolve DNA structures found at sites of CST activity...
October 10, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29040588/glyphosate-resistance-and-epsps-gene-duplication-convergent-evolution-in-multiple-plant-species
#13
Eric L Patterson, Dean J Pettinga, Karl Ravet, Paul Neve, Todd A Gaines
One of the increasingly widespread mechanisms of resistance to the herbicide glyphosate is copy number variation (CNV) of the 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) gene. EPSPS gene duplication has been reported in eight weed species, ranging from 3-5 extra copies to more than 150 extra copies. In the case of Palmer amaranth (Amaranthus palmeri), a section of >300 kb containing EPSPS and many other genes has been replicated and inserted at new loci throughout the genome, resulting in significant increase in total genome size...
October 10, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/29038504/the-contribution-of-saccharomyces-cerevisiae-replicative-age-to-the-variations-in-the-levels-of-trx2p-pdr5p-can1p-and-idh-isoforms
#14
Aglaia V Azbarova, Kseniia V Galkina, Maxim I Sorokin, Fedor F Severin, Dmitry A Knorre
Asymmetrical division can be a reason for microbial populations heterogeneity. In particular, budding yeast daughter cells are more vulnerable to stresses than the mothers. It was suggested that yeast mother cells could also differ from each other depending on their replicative age. To test this, we measured the levels of Idh1-GFP, Idh2-GFP, Trx2-GFP, Pdr5-GFP and Can1-GFP proteins in cells of the few first, most represented, age cohorts. Pdr5p and Can1p were selected because of the pronounced mother-bud asymmetry for these proteins distributions, Trx2p as indicator of oxidative stress...
October 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29038425/mre11-and-exo1-nucleases-degrade-reversed-forks-and-elicit-mus81-dependent-fork-rescue-in-brca2-deficient-cells
#15
Delphine Lemaçon, Jessica Jackson, Annabel Quinet, Joshua R Brickner, Shan Li, Stephanie Yazinski, Zhongsheng You, Grzegorz Ira, Lee Zou, Nima Mosammaparast, Alessandro Vindigni
The breast cancer susceptibility proteins BRCA1 and BRCA2 have emerged as key stabilizing factors for the maintenance of replication fork integrity following replication stress. In their absence, stalled replication forks are extensively degraded by the MRE11 nuclease, leading to chemotherapeutic sensitivity. Here we report that BRCA proteins prevent nucleolytic degradation by protecting replication forks that have undergone fork reversal upon drug treatment. The unprotected regressed arms of reversed forks are the entry point for MRE11 in BRCA-deficient cells...
October 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/29038346/atr-is-a-therapeutic-target-in-synovial-sarcoma
#16
Samuel E Jones, Emmy D G Fleuren, Jessica Frankum, Asha Konde, Chris T Williamson, Dragomir B Krastev, Helen N Pemberton, James Campbell, Aditi Gulati, Richard Elliott, Malini Menon, Joanna L Selfe, Rachel Brough, Stephen J Pettitt, Wojciech Niedzwiedz, Winette T A van der Graaf, Janet Shipley, Alan Ashworth, Christopher J Lord
Synovial sarcoma (SS) is an aggressive soft-tissue malignancy characterised by expression of SS18-SSX fusions, where treatment options are limited. To identify therapeutically actionable genetic dependencies in SS, we performed a series of parallel, high-throughput small interfering RNA (siRNA) screens and compared genetic dependencies in SS tumor cells to those in >130 non-SS tumour cell lines. This approach revealed a reliance of SS tumor cells upon the DNA damage response serine/threonine protein kinase ATR...
October 16, 2017: Cancer Research
https://www.readbyqxmd.com/read/29037381/dietary-supplementation-of-enzymatically-treated-artemisia-annua-could-alleviate-the-intestinal-inflammatory-response-in-heat-stressed-broilers
#17
Zhihua Song, Kang Cheng, Lili Zhang, Tian Wang
The study was undertaken to evaluate the effects of enzymatically treated Artemisia annua (EA) on the intestinal inflammatory response of heat-stressed broilers. A total of 144 male Arbor Acres broilers aged 21 days were randomly divided into 3 groups with 6 replicates per group and 8 broilers in each replicate. The 3 treatment groups were as follows: the control group, in which broiler chickens were raised at 22 ± 1°C and fed basal diets, the heat stress (HS) and HS-EA groups, in which broiler chickens were raised at 34 ± 1°C for 8h (0900-1700h) and 22 ± 1°C for 16h, and fed basal diets supplemented with 0 or 1g/kg EA, respectively...
October 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/29035540/targeted-clinical-nanoparticles-for-precision-cancer-therapy-based-on-disease-specific-molecular-inflection-points
#18
Charalambos Kaittanis, Alexander Bolaender, Barney Yoo, Nilesh Shah, Ouathek Ouerfelli, Jan Grimm
ional approaches based on clinical modular nanoplatforms are needed, in order to treat solid cancers according to their discrete molecular features. In the present study, we show that the clinical nanopharmaceutical Ferumoxytol, which consists of a glucose-based coat surrounding an iron oxide core, could identify molecular characteristics of prostate cancer, corresponding to unique phases of the disease continuum. By affixing a targeting probe for the prostate-specific membrane antigen on its surface, the nanopharmaceutical was able to assess the functional state of the androgen receptor pathway via MRI, guiding therapy and delivering it with the same clinical nanoparticle...
October 16, 2017: Nano Letters
https://www.readbyqxmd.com/read/29033319/checkpoint-kinase-rad53-couples-leading-and-lagging-strand-dna-synthesis-under-replication-stress
#19
Haiyun Gan, Chuanhe Yu, Sujan Devbhandari, Sushma Sharma, Junhong Han, Andrei Chabes, Dirk Remus, Zhiguo Zhang
The checkpoint kinase Rad53 is activated during replication stress to prevent fork collapse, an essential but poorly understood process. Here we show that Rad53 couples leading- and lagging-strand synthesis under replication stress. In rad53-1 cells stressed by dNTP depletion, the replicative DNA helicase, MCM, and the leading-strand DNA polymerase, Pol ε, move beyond the site of DNA synthesis, likely unwinding template DNA. Remarkably, DNA synthesis progresses further along the lagging strand than the leading strand, resulting in the exposure of long stretches of single-stranded leading-strand template...
October 10, 2017: Molecular Cell
https://www.readbyqxmd.com/read/29032641/cholic-acid-attenuate-er-stress-induced-cell-death-in-coxsackievirus-b3-infection
#20
Jae-Young Han, Hae In Jeong, Cheol-Woo Park, Jisoo Yoon, Jaeyoung Ko, Sang-Jip Nam, Byung-Kwan Lim
Coxsackievirus Type B3 (CVB3) is an enterovirus that belongs to the Picornaviridae and causes of various diseases such as myocarditis and hand-foot-mouth diseases. But effective antiviral drug was still not developed. In this study, we looking for potential inhibitors of CVB3 replication by examining survival of CVB3-infected HeLa cells. We detected an antiviral effect of cholic acid and identified it as a candidate inhibitor of CVB3 replication. Cholic acid circulates in the liver and intestines, and it helps digestion and absorption of lipids in small intestine...
October 14, 2017: Journal of Microbiology and Biotechnology
keyword
keyword
60291
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"