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https://www.readbyqxmd.com/read/29190367/early-experience-with-bilateral-continuous-femoral-nerve-block-and-single-injection-spinal-anesthesia-for-bilateral-total-knee-arthroplasty-a-case-series
#1
Matthew R Patrick, Hari K Parvataneni, Donald S Bohannon, André P Boezaart
Objective: Total knee arthroplasty (TKA) is a commonly performed surgery in the United States, with demand for unilateral and simultaneous bilateral TKAs (BTKAs) expected to increase significantly over the coming decades. This study reports the authors' early experience in a consecutive series of simultaneous BTKAs performed under regional anesthesia and mild sedation. Methods: In this retrospective case series, the authors examined all simultaneous BTKAs performed over two years by a single surgeon...
November 28, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29133885/a-conserved-stem-of-the-myxococcus-xanthus-srna-pxr-controls-srna-accumulation-and-multicellular-development
#2
Yuen-Tsu N Yu, Elizabeth Cooper, Gregory J Velicer
The small RNA (sRNA) Pxr negatively controls multicellular fruiting body formation in the bacterium Myxococcus xanthus, inhibiting the transition from growth to development when nutrients are abundant. Like many other prokaryotic sRNAs, Pxr is predicted to fold into three stem loops (SL1-SL3). SL1 and SL2 are highly conserved across the myxobacteria, whereas SL3 is much more variable. SL1 is necessary for the regulatory function of Pxr but the importance of SL3 in this regard is unknown. To test for cis genetic elements required for Pxr function, we deleted the entire pxr gene from a developmentally defective strain that fails to remove Pxr-mediated blockage of development and reintroduced variably truncated fragments of the pxr region to test for their ability to block development...
November 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29120327/capillary-pericytes-mediate-coronary-no-reflow-after-myocardial-ischaemia
#3
Fergus M O'Farrell, Svetlana Mastitskaya, Matthew Hammond-Haley, Felipe Freitas, Wen Rui Wah, David Attwell
After cardiac ischaemia, a prolonged decrease of coronary microvascular perfusion often occurs even after flow is restored in an upstream artery. This 'no-reflow' phenomenon worsens patient prognosis. In the brain, after stroke, a similar post-ischaemic 'no-reflow' has been attributed to capillary constriction by contractile pericytes. We now show that occlusion of a rat coronary artery, followed by reperfusion, blocks 40% of cardiac capillaries and halves perfused blood volume within the affected region. Capillary blockages colocalised strongly with pericytes, where capillary diameter was reduced by 37%...
November 9, 2017: ELife
https://www.readbyqxmd.com/read/29118763/induction-of-antihuman-c-c-chemokine-receptor-type-5-antibodies-by-a-bovine-herpesvirus-type-4-based-vector
#4
Andrea Elizabeth Verna, Valentina Franceschi, Giulia Tebaldi, Francesca Macchi, Valentina Menozzi, Claudia Pastori, Lucia Lopalco, Simone Ottonello, Sandro Cavirani, Gaetano Donofrio
Bovine herpesvirus 4 (BoHV-4) is a promising vector for the delivery and intracellular expression of recombinant antigens and can thus be considered as a new prototype vaccine formulation system. An interesting, and actively pursued, antigen in the context of human immunodeficiency virus (HIV) infection prophylaxis (and therapy) is the C-C chemokine receptor type 5 (CCR5) co-receptor, whose blockage by specific antibodies has been shown to inhibit both viral entry and cell-to-cell transmission of the virus...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29091896/effect-of-the-nadph-oxidase-inhibitor-apocynin-on-ischemia-reperfusion-hippocampus-injury-in-rat-brain
#5
Monika Kapoor, Neha Sharma, Rajat Sandhir, Bimla Nehru
Blockage along with sudden restoration of blood following ischemia, results in several cascading events, such as a massive ROS production which plays an important role in the pathophysiology of ischemia. NADPH oxidase complex in mitochondria complex is believed to be the major source for ROS production. The present study explores the therapeutic potential of apocynin, an NADPH oxidase inhibitor in attenuating the ROS production, and the resultant neuroinflammation and mitochondrial injury during cerebral ischemia in rats...
October 28, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29069740/blockage-of-foxp3-transcription-factor-dimerization-and-foxp3-aml1-interaction-inhibits-t-regulatory-cell-activity-sequence-optimization-of-a-peptide-inhibitor
#6
Teresa Lozano, Marta Gorraiz, Aritz Lasarte-Cía, Marta Ruiz, Obdulia Rabal, Julen Oyarzabal, Sandra Hervás-Stubbs, Diana Llopiz, Pablo Sarobe, Jesús Prieto, Noelia Casares, Juan José Lasarte
Although T regulatory cells (Treg) are essential for the prevention of autoimmune diseases, their immunoregulatory function restrains the induction of immune responses against cancer. Thus, development of inhibitors of FOXP3, a key transcription factor for the immunosuppressive activity of Treg, might give new therapeutic opportunities. In a previous work we identified a peptide (named P60) able to enter into the cells, bind to FOXP3, and impair Treg activity in vitro and in vivo. Here we show that P60 binds to the intermediate region of FOXP3 and inhibits its homodimerization as well as its interaction with the transcription factor AML1...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29064536/flow-mediated-dilatation-to-relieve-puncture-induced-radial-artery-spasm-a-pilot-study
#7
Lianghong Ying, Ke Xu, Xiaoxuan Gong, Xiaoyan Liu, Yuansheng Fan, Haiping Zhao, Fei Wang, Mohammad Reeaze Khurwolah, Chunjian Li
BACKGROUND: Puncture-induced radial artery spasm (RAS) may extend the duration of coronary angiography (CAG) or cause transradial access failure. Flow-mediated dilatation (FMD), a widely-used noninvasive approach for assessing endothelial function, was reported to remove the entrapped radial sheath after percutaneous coronary intervention. Herein, the efficacy and safety of FMD in treating puncture-induced RAS before transradial CAG was investigated. METHODS: Ninety patients with puncture-induced RAS were randomized in a 1:1:1 ratio into three groups: FMD group was immediately treated with blockage of brachial artery blood for 5 min using a sphygmomanometric cuff and then rapid relief; NTG group was administered with 0...
October 24, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/29054054/conformational-analysis-of-the-human-chemokine-receptor-cxcr3
#8
Raffaele Raucci, Andrea Polo, Alfredo Budillon, Giovanni Colonna, Susan Costantini
In the last years, some studies showed the patho-genetic role of CXCR3 bound to its ligands in many human inflammatory diseases and cancers. Thus, the blockage of the CXCR3 interaction site to its ligands is seen as a possible therapeutic target for the treatment of cancer. The presence of flexible regions in the chemokine receptors determines their capability to develop specific mechanisms of action. We have recently focused on the features of the N-terminal region of human CXCR3 free in solution, where we demonstrate the presence of numerous conformational ensembles, dynamically stabilized by H-bonds...
October 17, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28942448/antagomirs-targeting-microrna-134-increase-limk1-levels-after-experimental-seizures-in-vitro-and-in-vivo
#9
Jiahang Sun, Xiaoying Gao, Dawei Meng, Yang Xu, Xichun Wang, Xin Gu, Mian Guo, Xiaodong Shao, Hongwen Yan, Chuanlu Jiang, Yongri Zheng
BACKGROUND: MiR-134 is enriched in dendrites of hippocampal neurons and plays crucial roles in the progress of epilepsy. The present study aims to investigate the effects of antagomirs targeting miroRNA-134 (Ant-134) on limk1 expression and the binding of miR-134 and limk1 in experimental seizure. METHODS: Status epilepticus (SE) rat model was established by lithium chloride-pilocarpine injection and was treated with Ant-134 by intracerebroventricular injection...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28911018/wilted-cucumber-plants-infected-by-fusarium-oxysporum-f-sp-cucumerinum-do-not-suffer-from-water-shortage
#10
Yuming Sun, Min Wang, Yingrui Li, Zechen Gu, Ning Ling, Qirong Shen, Shiwei Guo
Background and Aims: Fusarium wilt is primarily a soil-borne disease and results in yield loss and quality decline in cucumber (Cucumis sativus). The main symptom of fusarium wilt is the wilting of entire plant, which could be caused by a fungal toxin(s) or blockage of water transport. To investigate whether this wilt arises from water shortage, the physiological responses of hydroponically grown cucumber plants subjected to water stress using polyethylene glycol (PEG, 6000) were compared with those of plants infected with Fusarium oxysporum f...
September 1, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28832738/multimodal-assessment-of-patients-with-chronic-central-serous-chorioretinopathy
#11
COMPARATIVE STUDY
Karlos Ítalo Souza Viana, Pedro M Souza Leão, Letícia Fernandes, Rubens Siqueira, Jefferson Ribeiro, Rodrigo Jorge
PURPOSE: To examine differences between fluorescein angiography (FA) and indocyanine green angiography (ICG) findings in patients with chronic central serous chorioretinopathy (CSC), comparing these with optical coherence tomography (OCT) findings. METHODS: Ten consecutive patients with chronic CSC (19 eyes; 7 men; mean age, 50.7 ± 8.4 years) underwent multimodal evaluation that included FA, ICG, and OCT (Spectralis HRA-OCT, Heidelberg Engineering, Heidelberg, Germany)...
June 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28802377/an-innovative-approach-to-improve-ear-nose-and-throat-surgical-access-for-remote-living-cape-york-indigenous-children
#12
Susan P Jacups, Denise Newman, Deborah Dean, Ann Richards, Kate M McConnon
INTRODUCTION: On a background of high rates of severe otitis media (OM) with associated hearing loss, children from the Torres Strait and Cape York region requiring ear, nose and throat (ENT) surgery, faced waiting times exceeding three years. After numerous clinical safety incidents were raised, indicating a failure of the current system to deliver appropriate care, the governing Hospital and Health service opted to deliver surgical care through an alternate process. ENT surgeries were performed on 16 consented children from two remote locations via the private health care system, funded by a health provider partnership...
September 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28790881/contrasting-coping-styles-meet-the-wall-a-dopamine-driven-dichotomy-in-behavior-and-cognition
#13
Erik Höglund, Patricia I M Silva, Marco A Vindas, Øyvind Øverli
Individual variation in the ability to modify previously learned behavior is an important dimension of trait correlations referred to as coping styles, behavioral syndromes or personality. These trait clusters have been shaped by natural selection, and underlying control mechanisms are often conserved throughout vertebrate evolution. In teleost fishes, behavioral flexibility and coping style have been studied in the high (HR) and low-responsive (LR) rainbow trout lines. Generally, proactive LR trout show a behavior guided by previously learned routines, while HR trout show a more flexible behavior relying on environmental cues...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28665292/hydrodynamics-of-mangrove-type-root-models-the-effect-of-porosity-spacing-ratio-and-flexibility-i-i-i-i
#14
Amirkhosro Kazemi, Keith Van de Riet, Oscar M Curet
Mangrove trees play a prominent role in coastal tropic and subtropical regions, providing habitats for many organisms and protecting shorelines against high energy flows. In particular, the species <i>Rhizophora mang</i>le (red mangrove) exhibits complex cluster roots interacting with different hydrological flow conditions. To better understand the resilience of mangrove trees, we modeled the roots as a collection of cylinders with a circular pattern subject to unidirectional flow. We investigated the effect of porosity and spacing ratio between roots by varying both the diameter of the patch, <i>D</i>, and inset cylinders,<i> d</i>...
June 30, 2017: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/28601606/size-and-time-dependent-growth-properties-of-human-induced-pluripotent-stem-cells-in-the-culture-of-single-aggregate
#15
Suman C Nath, Masanobu Horie, Eiji Nagamori, Masahiro Kino-Oka
Aggregate culture of human induced pluripotent stem cells (hiPSCs) is a promising method to obtain high number of cells for cell therapy applications. This study quantitatively evaluated the effects of initial cell number and culture time on the growth of hiPSCs in the culture of single aggregate. Small size aggregates ((1.1 ± 0.4) × 10(1)-(2.8 ± 0.5) × 10(1) cells/aggregate) showed a lower growth rate in comparison to medium size aggregates ((8.8 ± 0.8) × 10(1)-(6.8 ± 1.1) × 10(2) cells/aggregate) during early-stage of culture (24-72 h)...
June 7, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28592108/geometrical-effect-in-2d-nanopores
#16
Ke Liu, Martina Lihter, Aditya Sarathy, Sabina Caneva, Hu Qiu, Davide Deiana, Vasiliki Tileli, Duncan T L Alexander, Stephan Hofmann, Dumitru Dumcenco, Andras Kis, Jean-Pierre Leburton, Aleksandra Radenovic
A long-standing problem in the application of solid-state nanopores is the lack of the precise control over the geometry of artificially formed pores compared to the well-defined geometry in their biological counterpart, that is, protein nanopores. To date, experimentally investigated solid-state nanopores have been shown to adopt an approximately circular shape. In this Letter, we investigate the geometrical effect of the nanopore shape on ionic blockage induced by DNA translocation using triangular h-BN nanopores and approximately circular molybdenum disulfide (MoS2) nanopores...
June 13, 2017: Nano Letters
https://www.readbyqxmd.com/read/28569795/cystatin-c-as-a-potential-therapeutic-mediator-against-parkinson-s-disease-via-vegf-induced-angiogenesis-and-enhanced-neuronal-autophagy-in-neurovascular-units
#17
Jing Zou, Zhaoyu Chen, Xiaobo Wei, Zhigang Chen, Yongmei Fu, Xiaoyan Yang, Dan Chen, Rui Wang, Peter Jenner, Jia-Hong Lu, Min Li, Zhuohua Zhang, Beisha Tang, Kunlin Jin, Qing Wang
Cystatin C (CYS C, Cst3) is an endogenous cysteine protease inhibitor that plays neuroprotective roles in neurodegenerative diseases. We aimed to explore the association of CYS C with Parkinson's disease (PD) models and investigate its involvement in the role of neurovascular units (NVUs) in PD neuro-pathogenesis. We used A53T α-synuclein (SNCA) transgenic mice and 6-hydroxydopamine-lesioned DAergic PC12 cells as experimental PD models to investigate the mechanisms behind this association. The injections of CYS C were administered to the right substantia nigra (SN) of A53T SNCA transgenic mice to measure the effects of CYS C in transgenic A53T SNCA mice...
June 1, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28562359/blockage-of-foxp3-transcription-factor-dimerization-and-foxp3-aml1-interaction-inhibits-t-regulatory-cell-activity-sequence-optimization-of-a-peptide-inhibitor
#18
Teresa Lozano, Marta Gorraiz, Aritz Lasarte-Cía, Marta Ruiz, Obdulia Rabal, Julen Oyarzabal, Sandra Hervás-Stubbs, Diana Llopiz, Pablo Sarobe, Jesús Prieto, Noelia Casares, Juan José Lasarte
Although T regulatory cells (Treg) are essential for the prevention of autoimmune diseases, their immunoregulatory function restrains the induction of immune responses against cancer. Thus, development of inhibitors of FOXP3, a key transcription factor for the immunosuppressive activity of Treg, might give new therapeutic opportunities. In a previous work we identified a peptide (named P60) able to enter into the cells, bind to FOXP3, and impair Treg activity in vitro and in vivo. Here we show that P60 binds to the intermediate region of FOXP3 and inhibits its homodimerization as well as its interaction with the transcription factor AML1...
May 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28523092/management-of-a-life-threatening-bleeding-following-extraction-of-deciduous-second-molar-related-to-a-capillary-haemangioma
#19
REVIEW
Amr Amin Ghanem, Yasser Nabil El Hadidi
Various forms of vascular lesion affect the head and neck region. The head and neck vascular lesions are classified into neoplasms and malformations. Neoplasm presents either as hemangioma or lymphangioma; neoplasm usually presents in young age compared with vascular malformation. A 9-year-old female patient presented to the outpatient clinic referred from the department of pedodontics after extraction of a right mandibular second deciduous molar. Extraction was done by dental GP in outpatient clinic. Massive bleeding followed the extraction...
June 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/28502629/the-inhibitory-effects-of-levo-tetrahydropalmatine-on-rat-kv1-5-channels-expressed-in-hek293-cells
#20
Kai Li, Ming-Shan Pi, Xian-Tao Li
Levo-tetrahydropalmatine (l-THP) exerts various pharmacological effects on neural and cardiac tissues and K(+) channel can be one of its multiple targets. The rapidly activating Kv1.5 channel is expressed in a variety of tissues including atrial cells and hippocampal neurons, and has an essential role in tuning the action potential and excitability in those cells. The aim of current study is to explore whether there are the possible effects of l-THP on Kv1.5 channels expressed in HEK293 cells. Superfusion of l-THP led to a dose-dependent blockage of Kv1...
May 11, 2017: European Journal of Pharmacology
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