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https://www.readbyqxmd.com/read/28215053/-the-first-intervention-is-leaving-home-reasons-for-electing-an-out-of-hospital-birth-among-minnesotan-mothers
#1
Helen Hazen
The Twin Cities, Minnesota has seen a recent increase in the number of mothers seeking an out-of-hospital birth. This research uses in-depth interviews with 24 mothers who intended an out-of-hospital birth in the previous two years, exploring their reasons for pursuing an alternative approach to birth. For many women an out-of-hospital birth fits within a philosophy that rejects the pathologizing of birth. Escaping rigid hospital protocols is seen as critical to avoiding what many mothers described as unnecessary interventions...
February 18, 2017: Medical Anthropology Quarterly
https://www.readbyqxmd.com/read/28214838/the-role-of-hippocampal-structural-synaptic-plasticity-in-repetitive-transcranial-magnetic-stimulation-to-improve-cognitive-function-in-male-samp8-mice
#2
Jiang Ma, Jinhua Wang, Chaonan Lv, Jingjuan Pang, Bing Han, Mingwei Wang, Yuan Gen
BACKGROUND: Repetitive transcranial magnetic stimulation (rTMS) has been used to improve cognitive function, but the stimulation protocols are variable and the underlying mechanism is unclear. Therefore, we intend to examine whether 5Hz rTMS with 30% maximum output could improve cognitive functions in senescence-accelerated-prone mouse 8 (SAMP8) through changing synaptic plasticity. METHODS: SAMP8 and senescence-accelerated-prone mouse/resistant 1 (SAMR1) (7-month old male) were randomly divided into 3 groups: SMAP8 rTMS group (P8-rTMS), SMAP8 sham-rTMS group (P8-sham), and SAMR1 sham-rTMS group (R1-sham)...
January 18, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28213729/alpha-tocopherol-transfer-protein-%C3%AE-ttp-is-expressed-in-endometrial-carcinoma-and-is-correlated-with-figo-stage-and-5-year-survival
#3
Sabine Heublein, Thomas Vrekoussis, Ronny Etzl, Daisy Rotzoll, Christina Kuhn, Gesine Faigle, Iordanis Navrozoglou, Theodore Stefos, Antonis Makrigiannakis, Udo Jeschke
BACKGROUND: Increased oxidative stress plays an important role in cancer development. Vitamin E is considered a potent anti-oxidant and its transfer protein αTTP facilitates its cellular delivery. We hypothesize that αTTP could be present in and have an impact on endometrial cancer. MATERIALS AND METHODS: Ishikawa endometrial cancer cells were treated with BSO and AAPH to mimick oxidative stress conditions. αTTP was detected by immunocytochemistry and western blot...
February 17, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28213063/impaired-spatial-performance-in-cerebellar-deficient-lurcher-mice-is-not-associated-with-their-abnormal-stress-response
#4
Jan Tuma, Yaroslav Kolinko, Dana Jelinkova, Pascal Hilber, Jan Cendelin
Both humans and laboratory animals suffering from cerebellar lesions exhibit cognitive as well as many emotional and behavioral abnormalities. These latter have been already observed in the cerebellar mutant mice currently used to highlight some aspect of autism spectrum disorders. The aim of this study was to investigate the influence of cerebellar-related stress response abnormalities on spatial learning and memory. Cerebellar-deficient Lurcher mutant mice were exposed to water environment without active escape possibility and then tested for spatial learning in the Morris water maze...
February 14, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28212788/immunology-of-alveolar-and%C3%A2-cystic-echinococcosis-ae-and-ce
#5
B Gottstein, P Soboslay, E Ortona, J Wang, A Siracusano, D Α Vuitton
Cystic and alveolar echinococcosis are severe chronic helminthic diseases caused by the cystic growth or the intrahepatic tumour-like growth of the metacestode of Echinococcus granulosus or Echinococcus multilocularis, respectively. Both parasites have evolved sophisticated strategies to escape host immune responses, mainly by manipulating and directing this immune response towards anergy and/or tolerance. Recent research studies have revealed a number of respective immunoregulatory mechanisms related to macrophages and dendritic cell as well as T cell activities (regulatory T cells, Tregs)...
2017: Advances in Parasitology
https://www.readbyqxmd.com/read/28211878/pre-descemets-endothelial-keratoplasty-the-pdek-clamp-for-successful-pdek
#6
H S Dua, D G Said
PurposeTo design and produce a clamp that enables good handling of donor sclera-corneal disks, allows air to be injected in the corneal stroma and consistently provides pre-Descemets endothelial keratoplasty (PDEK) tissue by creation of a type-1 big bubble (BB) avoiding a type-2BB by shutting the fenestrations in the periphery of the pre-Descemets layer and preventing escape of air.Patients and methodsA clamp with spring loaded handles attached to two rings of 9 mm diameter and 1 mm width with a side port for insertion of a needle for air injection was designed and produced...
February 17, 2017: Eye
https://www.readbyqxmd.com/read/28211509/climbing-favours-the-tripod-gait-over-alternative-faster-insect-gaits
#7
Pavan Ramdya, Robin Thandiackal, Raphael Cherney, Thibault Asselborn, Richard Benton, Auke Jan Ijspeert, Dario Floreano
To escape danger or catch prey, running vertebrates rely on dynamic gaits with minimal ground contact. By contrast, most insects use a tripod gait that maintains at least three legs on the ground at any given time. One prevailing hypothesis for this difference in fast locomotor strategies is that tripod locomotion allows insects to rapidly navigate three-dimensional terrain. To test this, we computationally discovered fast locomotor gaits for a model based on Drosophila melanogaster. Indeed, the tripod gait emerges to the exclusion of many other possible gaits when optimizing fast upward climbing with leg adhesion...
February 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/28210980/molecular-mechanisms-of-ire1%C3%AE-ask1-pathway-reactions-to-unfolded-protein-response-in-drn-neurons-of-post-traumatic-stress-disorder-rats
#8
Fanzhen Kong, Fang Han, Yanhao Xu, Yuxiu Shi
The goal of this study was to further elucidate the molecular mechanisms of post-traumatic stress disorder (PTSD) pathogenesis and to provide experimental evidence for new drug targets for effective PTSD treatment. Expression changes of IRE1α, ASK1, and other downstream molecules of the IRE1α-ASK1 endoplasmic reticulum stress (ERS) signaling pathway were investigated. JNK, P38, CHOP, Bcl-2, and Bax were analyzed at both protein and mRNA levels of dorsal raphe nucleus (DRN) neurons of PTSD rats. The rat PTSD model was established via the single-prolonged stress (SPS) method...
February 16, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28210826/stranger-fear-and-early-risk-for-social-anxiety-in-preschoolers-with-fragile-x-syndrome-contrasted-to-autism-spectrum-disorder
#9
Jessica F Scherr, Abigail L Hogan, Deborah Hatton, Jane E Roberts
This study investigated behavioral indicators of social fear in preschool boys with fragile X syndrome (FXS) with a low degree of autism spectrum disorder (ASD) symptoms (FXS-Low; n = 29), FXS with elevated ASD symptoms (FXS-High; n = 25), idiopathic ASD (iASD; n = 11), and typical development (TD; n = 36). Gaze avoidance, escape behaviors, and facial fear during a stranger approach were coded. Boys with elevated ASD symptoms displayed more avoidant gaze, looking less at the stranger and parent than those with low ASD symptoms across etiologies...
February 16, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28210050/a-study-of-the-relationships-of-changes-in-pain-and-gait-after-tourniquet-induced-ischemia-reperfusion-in-rats
#10
Kazuki Aihara, Takeya Ono, Namiko Umei, Wakako Tsumiyama, Atsushi Tasaka, Hideki Ishikura, Yuta Sato, Tomohiro Matsumoto, Sadaaki Oki
[Purpose] The purpose of this study was to determine the relationships of changes in pain and gait after ischemia reperfusion was induced by tourniquet in rats. [Subjects and Methods] The subjects were six ten-week-old male Wistar rats. Ischemia was induced in the left lower limbs of the experimental rats at a pressure of 300 mmHg for 90 minutes. Pain behavior evaluations were measured using the von Frey test in all the rats' hind limbs. A consistently increasing plantar stimulus was applied until the rats exhibited an escape behavior...
January 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28209983/generation-and-quantitative-proteomics-analysis-of-ck2%C3%AE-%C3%AE-cells
#11
Christian Borgo, Cinzia Franchin, Stefano Scalco, Valentina Bosello-Travain, Arianna Donella-Deana, Giorgio Arrigoni, Mauro Salvi, Lorenzo A Pinna
CK2 is a ubiquitous, constitutively active, highly pleiotropic, acidophilic Ser/Thr protein kinase whose holoenzyme is composed of two catalytic (α and/or α') subunits and a dimer of a non-catalytic β subunit. Abnormally high CK2 level/activity is often associated with malignancy and a variety of cancer cells have been shown to rely on it to escape apoptosis. To gain information about the actual "druggability" of CK2 and to dissect CK2 dependent cellular processes that are instrumental to the establishment and progression of neoplasia we have exploited the CRISPR/Cas9 genome editing technology to generate viable clones of C2C12 myoblasts devoid of either both the CK2 catalytic subunits or its regulatory β-subunit...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28209632/high-resolution-profiling-of-nmd-targets-in-yeast-reveals-translational-fidelity-as-a-basis-for-substrate-selection
#12
Alper Celik, Richard Baker, Feng He, Allan Jacobson
Nonsense-mediated mRNA decay (NMD) plays an important role in eukaryotic gene expression yet the scope and the defining features of NMD-targeted transcripts remain elusive. To address these issues, we re-evaluated the genome-wide expression of annotated transcripts in yeast cells harboring deletions of the UPF1, UPF2, or UPF3 genes. Our new RNA-Seq analyses confirm previous results of microarray studies, but also uncover hundreds of new NMD-regulated transcripts that had escaped previous detection, including many intron-containing pre-mRNAs and several non-coding RNAs...
February 16, 2017: RNA
https://www.readbyqxmd.com/read/28209536/maternal-administration-of-melatonin-prevents-spatial-learning-and-memory-deficits-induced-by-developmental-ethanol-and-lead-co-exposure
#13
Elham Soleimani, Iran Goudarzi, Kataneh Abrari, Taghi Lashkarbolouki
Melatonin is a radical scavenger with the ability to remove reactive oxidant species. There is report that co-exposure to lead and ethanol during developmental stages induces learning and memory deficits and oxidative stress. Here, we studied the effect of melatonin, with strong antioxidant properties, on memory deficits induced by lead and ethanol co-exposure and oxidative stress in hippocampus. Pregnant rats in lead and ethanol co-exposure group received lead acetate of 0.2% in distilled drinking water and ethanol (4g/kg) by oral gavages once daily from the 5th day of gestation until weaning...
February 13, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28208922/role-of-routine-subhepatic-abdominal-drain-placement-following-uncomplicated-laparoscopic-cholecystectomy-a-prospective-randomised-study
#14
Ankur Sharma, Sushil Mittal
INTRODUCTION: Routine abdominal drainage after laparoscopy cholecystectomy is an issue of considerable debate. Reason for draining is to detect early bile/blood leak and allow CO2 insufflate during laparoscopy to escape via drain site thereby decreased shoulder tip pain and post-operative nausea and vomiting. But some studies show no difference in post-operative nausea /vomiting/pain between drain and no drain group. AIM: To assess the role of drains following uncomplicated laparoscopic cholecystectomy...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208484/subtle-escaping-modes-and-subset-of-patterns-from-a-nonhyperbolic-chaotic-attractor
#15
Zhen Chen, Xianbin Liu
Noise-induced escape from the domain of attraction of a nonhyperbolic chaotic attractor in a periodically excited nonlinear oscillator is further investigated. Deviations are found to be amplified at the primary homoclinic tangency from which the optimal force begins to fluctuate dramatically. Escaping trajectories turn out to possess several modes to pass through the saddle cycle on the basin boundary, and each mode corresponds to a certain type of value of the action plot, respectively. A subset of the pattern of fluctuational paths from the chaotic attractor is obtained, showing the existence of complicated singularities...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28208481/escape-rate-of-active-particles-in-the-effective-equilibrium-approach
#16
A Sharma, R Wittmann, J M Brader
The escape rate of a Brownian particle over a potential barrier is accurately described by the Kramers theory. A quantitative theory explicitly taking the activity of Brownian particles into account has been lacking due to the inherently out-of-equilibrium nature of these particles. Using an effective equilibrium approach [Farage et al., Phys. Rev. E 91, 042310 (2015)PLEEE81539-375510.1103/PhysRevE.91.042310] we study the escape rate of active particles over a potential barrier and compare our analytical results with data from direct numerical simulation of the colored noise Langevin equation...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28208374/stochastic-boundary-approaches-to-many-particle-systems-coupled-to-a-particle-reservoir
#17
Tooru Taniguchi, Shin-Ichi Sawada
Stochastic boundary conditions for interactions with a particle reservoir are discussed in many-particle systems. We introduce the boundary conditions with the injection rate and the momentum distribution of particles coming from a particle reservoir in terms of the pressure and the temperature of the reservoir. It is shown that equilibrium ideal gases and hard-disk systems with these boundary conditions reproduce statistical-mechanical properties based on the corresponding grand canonical distributions. We also apply the stochastic boundary conditions to a hard-disk model with a steady particle current escaping from a particle reservoir in an open tube, and discuss its nonequilibrium properties such as a chemical potential dependence of the current and deviations from the local equilibrium hypothesis...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28208317/quantum-kramers-model-corrections-to-the-linear-response-theory-for-continuous-bath-spectrum
#18
Ilya Rips
Decay of the metastable state is analyzed within the quantum Kramers model in the weak-to-intermediate dissipation regime. The decay kinetics in this regime is determined by energy exchange between the unstable mode and the stable modes of thermal bath. In our previous paper [Phys. Rev. A 42, 4427 (1990)PLRAAN1050-294710.1103/PhysRevA.42.4427], Grabert's perturbative approach to well dynamics in the case of the discrete bath [Phys. Rev. Lett. 61, 1683 (1988)PRLTAO0031-900710.1103/PhysRevLett.61.1683] has been extended to account for the second order terms in the classical equations of motion (EOM) for the stable modes...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28208102/oncogenic-growth-factor-signaling-mediating-tumor-escape-from-cellular-immunity
#19
REVIEW
Fernando Concha-Benavente, Robert L Ferris
Unrestrained growth factor signals can promote carcinogenesis, as well as other hallmarks of cancer such as immune evasion. Our understanding of the function and complex regulation of HER family of receptors has led to the development of targeted therapeutic agents that suppress tumor growth. However, these receptors also mediate escape from recognition by the host immune system. We discuss how HER family of oncogenic receptors downregulate tumor antigen presentation and upregulate suppressive membrane-bound or soluble secreted inhibitory molecules that ultimately lead to impaired cellular immunity mediated by cytotoxic T lymphocyte (CTL) recognition...
February 13, 2017: Current Opinion in Immunology
https://www.readbyqxmd.com/read/28207890/mucosal-stromal-fibroblasts-markedly-enhance-hiv-infection-of-cd4-t-cells
#20
Jason A Neidleman, Joseph C Chen, Nargis Kohgadai, Janis A Müller, Anders Laustsen, Karthiga Thavachelvam, Karen S Jang, Christina M Stürzel, Jennifer J Jones, Christina Ochsenbauer, Avantika Chitre, Ma Somsouk, Maurice M Garcia, James F Smith, Ruth M Greenblatt, Jan Münch, Martin R Jakobsen, Linda C Giudice, Warner C Greene, Nadia R Roan
Understanding early events of HIV transmission within mucosal tissues is vital for developing effective prevention strategies. Here, we report that primary stromal fibroblasts isolated from endometrium, cervix, foreskin, male urethra, and intestines significantly increase HIV infection of CD4+ T cells-by up to 37-fold for R5-tropic HIV and 100-fold for X4-tropic HIV-without themselves becoming infected. Fibroblasts were more efficient than dendritic cells at trans-infection and mediate this response in the absence of the DC-SIGN and Siglec-1 receptors...
February 2017: PLoS Pathogens
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