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https://www.readbyqxmd.com/read/28725014/su-schrieffer-heeger-chain-with-one-pair-of-formula-see-text-symmetric-defects
#1
L Jin, P Wang, Z Song
The topologically nontrivial edge states induce [Formula: see text] transition in Su-Schrieffer-Heeger (SSH) chain with one pair of gain and loss at boundaries. In this study, we investigated a pair of [Formula: see text]-symmetric defects located inside the SSH chain, in particular, the defects locations are at the chain centre. The [Formula: see text] symmetry breaking of the bound states leads to the [Formula: see text] transition, the [Formula: see text]-symmetric phases and the localized states were studied...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724611/tumor-necrosis-factor-alpha-kidney-function-and-hypertension
#2
Eamonn Mehaffey, Dewan Syed Abdul Majid
Hypertension is considered to be a low-grade inflammatory condition characterized by the presence of various pro-inflammatory cytokines. The inflammatory cytokine Tumor Necrosis Factor-alpha (TNF-α) is a constituent of the pro-inflammatory environment that is associated with salt-sensitive hypertension (SSH) and related renal injury. Elevated angiotensin II (AngII) and other factors such as oxidative stress conditions promote TNF-α formation. Many recent studies have provided evidence that TNF-α exerts a direct renal action by regulating hemodynamic and excretory function in the kidney...
July 19, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28654760/gametocidal-genes-of-aegilops-segregation-distorters-in-wheat-aegilops-wide-hybridization
#3
M Niranjana
Aegilops is a genus belonging to the Poaceace family which have played indispensible role in the evolution of bread wheat and continues to do so by transferring genes by wide hybridization. Being the secondary genepool of wheat, gene transfer from Aegilops poses difficulties and segregation distortion is common. Gametocidal genes are the most well characterized class of segregation distorters reported in interspecific crosses of wheat with Aegilops. These are selfish genetic elements which ensure their preferential transmission to progeny at the cost of gametes lacking them without providing any phenotypic benefits to the plant causing a proportional reduction in fertility...
June 27, 2017: Genome Génome / Conseil National de Recherches Canada
https://www.readbyqxmd.com/read/28619100/cyclophilin-b-facilitates-the-replication-of-orf-virus
#4
Kui Zhao, Jida Li, Wenqi He, Deguang Song, Ximu Zhang, Di Zhang, Yanlong Zhou, Feng Gao
BACKGROUND: Viruses interact with host cellular factors to construct a more favourable environment for their efficient replication. Expression of cyclophilin B (CypB), a cellular peptidyl-prolyl cis-trans isomerase (PPIase), was found to be significantly up-regulated. Recently, a number of studies have shown that CypB is important in the replication of several viruses, including Japanese encephalitis virus (JEV), hepatitis C virus (HCV) and human papillomavirus type 16 (HPV 16). However, the function of cellular CypB in ORFV replication has not yet been explored...
June 15, 2017: Virology Journal
https://www.readbyqxmd.com/read/28606083/the-spiritual-history-in-outpatient-practice-attitudes-and-practices-of-health-professionals-in-the-adventist-health-system
#5
Harold G Koenig, Kathleen Perno, Ted Hamilton
BACKGROUND: A screening spiritual history (SSH) is how health professionals (HP) identify patients' spiritual values, beliefs and preferences (VBPs) in the outpatient setting. We report on attitudes and practices of HPs in the largest Protestant health system in the U.S., the Adventist Health System (AHS). METHOD: Physicians or mid-level practitioners (N = 1082) in AHS-affiliated practices were approached and 513 (47%) agreed to participate. Participants were asked to identify a "spiritual care coordinator" (nurse/staff) and complete a questionnaire that assessed demographics, practice characteristics, religious involvement, and attitudes/practices concerning the SSH...
June 12, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/28596044/incidence-recurrence-and-risk-factors-of-hernias-following-stoma-reversal
#6
Brad S Oriel, Qi Chen, Kamal M F Itani
BACKGROUND: To determine the incidence and risk factors for stoma site (SSH) and incisional (IH) hernias following stoma reversal as well as their recurrence following repair. METHODS: A cohort of VA Surgical Quality Improvement Program patients undergoing stoma reversal from 2002 to 2014 were evaluated at a single institution. Variables were selected a priori and evaluated by univariate analyses. RESULTS: Of 114 stoma reversals, 63 utilized a midline approach...
June 3, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28584249/quantum-phase-transition-and-entanglement-in-topological-quantum-wires
#7
Jaeyoon Cho, Kun Woo Kim
We investigate the quantum phase transition of the Su-Schrieffer-Heeger (SSH) model by inspecting the two-site entanglements in the ground state. It is shown that the topological phase transition of the SSH model is signified by a nonanalyticity of local entanglement, which becomes discontinuous for finite even system sizes, and that this nonanalyticity has a topological origin. Such a peculiar singularity has a universal nature in one-dimensional topological phase transitions of noninteracting fermions. We make this clearer by pointing out that an analogous quantity in the Kitaev chain exhibiting the identical nonanalyticity is the local electron density...
June 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28583615/identification-of-differentially-expressed-genes-in-early-developmental-ovary-of-yellow-river-carp-cyprinus-carpio-var-using-suppression-subtractive-hybridization
#8
Wan-Wan Zhang, Yong-Fang Jia, Fang Wang, Qi-Yan Du, Zhong-Jie Chang
Ovary development appears to be under polygenic control, and is influenced by multiple genetic factors that may vary from organism to organism. To gain a better insight into the molecular mechanisms of carp ovary development, Suppression Subtractive Hybridization (SSH) DNA libraries in two species of Yellow River carp were analyzed. Primordial gonads and stage II ovaries were used as testers, and adult ovaries as drivers. One hundred and fifty differentially-expressed candidate genes were examined by Southern blot microarray hybridization...
July 15, 2017: Theriogenology
https://www.readbyqxmd.com/read/28575899/effects-of-a-12-month-educational-intervention-on-clinicians-attitudes-practices-regarding-the-screening-spiritual-history
#9
Harold G Koenig, Kathleen Perno, Alaattin Erkanli, Ted Hamilton
OBJECTIVES: Patients' spiritual values, beliefs, and preferences are identified in outpatient medical settings by the taking of a screening spiritual history (SSH). We report the impact of an educational/training program on the attitudes/practices of physicians (MDs) and midlevel practitioners (MLPs). METHODS: A convenience sample of 1082 MDs or MLPs in outpatient practices was approached to participate in a 12-month educational/training program in this single-group experimental study...
June 2017: Southern Medical Journal
https://www.readbyqxmd.com/read/28551485/spontaneous-submental-hematoma-a-pseudo-ludwig-s-phenomenon-in-101-year-old-patient-case-report-and-literature-review
#10
Uthman Alamoudi, Yasser Alsallumi, Matthew H Rigby, S Mark Taylor, Jonathan R B Trites, Robert D Hart
OBJECTIVE: Submental hematoma or pseudo-Ludwig's phenomenon, is a rare entity seen in anticoagulated patients and can precipitate upper airway obstruction. Our objective is to present a rare case of spontaneous submental hematoma due to poorly controlled hypertension in elderly patient and to perform a literature review. CASE REPORT: 101-year-old female presented to emergency room with sudden painful swelling in the floor of mouth and slurred speech. Not on anticoagulation and no history of trauma or known allergies...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28473212/hepatocellular-adenoma-in-a-european-flatfish-limanda-limanda-genetic-alterations-in-laser-capture-micro-dissected-tissue-and-global-transcriptomic-approach
#11
Adélaïde Lerebours, Emma Chapman, Brett P Lyons, John P Bignell, Grant D Stentiford, Jeanette M Rotchell
Liver tumours in flatfish have been diagnosed using histopathology for decades to monitor the impacts of marine pollution. Here we describe the application of specific gene (retinoblastoma, Rb) profiling in laser capture micro-dissected samples, and a suppression subtractive hybridization (SSH) approach to isolate differentially expressed genes in hepatocellular adenoma (HCA) samples from dab, Limanda limanda. The Rb profiles from apparently normal and HCA micro-dissected samples of fish from the North Sea showed no significant difference, and genotypic heterogeneity within defined histological phenotypes was observed...
May 1, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28455764/heterologous-expression-of-three-camellia-sinensis-small-heat-shock-protein-genes-confers-temperature-stress-tolerance-in-yeast-and-arabidopsis-thaliana
#12
Mingle Wang, Zhongwei Zou, Qinghui Li, Huahong Xin, Xujun Zhu, Xuan Chen, Xinghui Li
CsHSP17.7, CsHSP18.1, and CsHSP21.8 expressions are induced by heat and cold stresses, and CsHSP overexpression confers tolerance to heat and cold stresses in transgenic Pichia pastoris and Arabidopsis thaliana. Small heat shock proteins (sHSPs) are crucial for protecting plants against biotic and abiotic stresses, especially heat stress. However, knowledge concerning the functions of Camellia sinensis sHSP in heat and cold stresses remains poorly understood. In this study, three C. sinensis sHSP genes (i.e...
July 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28451253/reversible-ratiometric-detection-of-highly-reactive-hydropersulfides-using-a-fret-based-dual-emission-fluorescent-probe
#13
Ryosuke Kawagoe, Ippei Takashima, Shohei Uchinomiya, Akio Ojida
Hydropersulfide (R-SSH) is an important class of reactive sulfur species (RSS) involved in a variety of physiological processes in mammals. A fluorescent probe capable of real-time detection of hydropersulfide levels in living cells would be a versatile tool to elucidate its roles in cell signalling and redox homeostasis. In this paper, we report a ratiometric fluorescent probe for hydropersulfide sensing, based on a fluorescence resonance energy transfer (FRET) mechanism. This sensing mechanism involves a nucleophilic reaction of a hydropersulfide with the pyronine-unit of the probe, which modulates the intramolecular FRET efficiency to induce a dual-emission change...
February 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28448540/bruchid-egg-induced-transcript-dynamics-in-developing-seeds-of-black-gram-vigna-mungo
#14
Indrani K Baruah, Debashis Panda, Jagadale M V, Deba Jit Das, Sumita Acharjee, Priyabrata Sen, Bidyut Kumar Sarmah
Black gram (Vigna mungo) seeds are a rich source of digestible proteins, however, during storage these seeds are severely damaged by bruchids (Callosobruchus spp.), reducing seed quality and yield losses. Most of the cultivated genotypes of black gram are susceptible to bruchids, however, few tolerant genotypes have also been identified but the mechanism of tolerance is poorly understood. We employed Suppression Subtractive Hybridization (SSH) to identify specifically, but rarely expressed bruchid egg induced genes in black gram...
2017: PloS One
https://www.readbyqxmd.com/read/28446754/phonon-mediated-repulsion-sharp-transitions-and-quasi-self-trapping-in-the-extended-peierls-hubbard-model
#15
J Sous, M Chakraborty, C P J Adolphs, R V Krems, M Berciu
We study two identical fermions, or two hard-core bosons, in an infinite chain and coupled to phonons by interactions that modulate their hopping as described by the Peierls/Su-Schrieffer-Heeger (SSH) model. We show that exchange of phonons generates effective nearest-neighbor repulsion between particles and also gives rise to interactions that move the pair as a whole. The two-polaron phase diagram exhibits two sharp transitions, leading to light dimers at strong coupling and the flattening of the dimer dispersion at some critical values of the parameters...
April 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28445253/micro-rna-screening-and-prediction-model-construction-for-diagnosis-of-salt-sensitive-essential-hypertension
#16
Han Qi, Zheng Liu, Bin Liu, Han Cao, Weiping Sun, Yuxiang Yan, Ling Zhang
Commonly used tests for diagnosis of salt-sensitive hypertension (SSH) are complex and time-consuming, so new methods are required. Many studies have demonstrated roles for miRNAs in hypertension; however, the diagnostic value of miRNAs has yet to be determined for human SSH. In this study, we examined miRNA expression profiles by initial high-throughput miRNA sequencing of samples from patients with salt-sensitive and salt-resistant hypertension (SSH and SRH, respectively; n = 6, both groups), followed by validation by quantitative real-time polymerase chain reaction (qRT-PCR) in a larger cohort (n = 91)...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28444590/transcripts-of-pectin-degrading-enzymes-and-isolation-of-complete-cdna-sequence-of-a-pectate-lyase-gene-induced-by-coffee-white-stem-borer-xylotrechus-quadripes-in-the-bark-tissue-of-coffea-canephora-robusta-coffee
#17
Kosaraju Bharathi, P Santosh, H L Sreenath
Of the two commercially cultivated coffee (Coffea) species, C. arabica (arabica) is highly susceptible and C. canephora (robusta) is highly resistant to the insect pest Xylotrechus quadripes (Coleoptera: Cerambycidae), commonly known as coffee white stem borer (CWSB). We constructed a forward-subtracted cDNA library by Suppression Subtractive Hybridization (SSH) from robusta bark tissue for profiling genes induced by CWSB infestation. Among the 265 unigenes of the SSH EST library, 7 unigenes (5 contigs and 2 singletons) matching different pectin-degrading enzymes were discovered...
May 2017: 3 Biotech
https://www.readbyqxmd.com/read/28443673/fluorescent-probes-and-selective-inhibitors-for-biological-studies-of-hydrogen-sulfide-and-polysulfide-mediated-signaling
#18
Yoko Takano, Honami Echizen, Kenjiro Hanaoka
SIGNIFICANCE: Hydrogen sulfide (H2S) plays roles in many physiological processes, including relaxation of vascular smooth muscles, mediation of neurotransmission, inhibition of insulin signaling, and regulation of inflammation. Also, hydropersulfide (R-S-SH) and polysulfide (-S-Sn-S-) have recently been identified as reactive sulfur species (RSS) that regulate the bioactivities of multiple proteins via S-sulfhydration of cysteine residues (protein Cys-SSH) and show cytoprotection. Chemical tools such as fluorescent probes and selective inhibitors are needed to establish in detail the physiological roles of H2S and polysulfide...
May 18, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28428796/expression-profiling-coupled-with-in-silico-mapping-identifies-candidate-genes-for-reducing-aflatoxin-accumulation-in-maize
#19
Ramesh Dhakal, Chenglin Chai, Ratna Karan, Gary L Windham, William P Williams, Prasanta K Subudhi
Aflatoxin, produced by Aspergillus flavus, is hazardous to health of humans and livestock. The lack of information about large effect QTL for resistance to aflatoxin accumulation is a major obstacle to employ marker-assisted selection for maize improvement. The understanding of resistance mechanisms of the host plant and the associated genes is necessary for improving resistance to A. flavus infection. A suppression subtraction hybridization (SSH) cDNA library was made using the developing kernels of Mp715 (resistant inbred) and B73 (susceptible inbred) and 480 randomly selected cDNA clones were sequenced to identify differentially expressed genes (DEGs) in response to A...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28420190/overexpression-of-s-adenosyl-l-methionine-synthetase-2-from-sugar-beet-m14-increased-arabidopsis-tolerance-to-salt-and-oxidative-stress
#20
Chunquan Ma, Yuguang Wang, Dan Gu, Jingdong Nan, Sixue Chen, Haiying Li
The sugar beet monosomic addition line M14 is a unique germplasm that contains genetic materials from Beta vulgaris L. and Beta corolliflora Zoss, and shows tolerance to salt stress. Our study focuses on exploring the molecular mechanism of the salt tolerance of the sugar beet M14. In order to identify differentially expressed genes in M14 under salt stress, a subtractive cDNA library was generated by suppression subtractive hybridization (SSH). A total of 36 unique sequences were identified in the library and their putative functions were analyzed...
April 18, 2017: International Journal of Molecular Sciences
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