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https://www.readbyqxmd.com/read/28339550/the-tension-sensitive-ion-transport-activity-of-msl8-is-critical-for-its-function-in-pollen-hydration-and-germination
#1
Eric S Hamilton, Elizabeth S Haswell
All cells respond to osmotic challenges, including those imposed during normal growth and development. Mechanosensitive (MS) ion channels provide a conserved mechanism for regulating osmotic forces by conducting ions in response to increased membrane tension. We previously demonstrated that the MS ion channel MscS-Like 8 (MSL8) is required for pollen to survive multiple osmotic challenges that occur during the normal process of fertilization, and that it can inhibit pollen germination. However, it remained unclear whether these physiological functions required ion flux through a mechanically gated channel provided by MSL8...
January 10, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28339138/cognitive-performance-and-the-alteration-of-neuroendocrine-hormones-in-chronic-tension-type-headache
#2
Ping Qu, Jin-Xia Yu, Lan Xia, Gui-Hai Chen
Tension-type headache (TTH) is the most prevalent primary headache. Chronic TTH (CTTH), the most serious form of TTH, is refractory, with a high socio-economic burden. Research studies have shown patients with migraine often had cognitive impairment, but few studies have focused on the cognition in CTTH patients. In the present study, we assumed that patients with CTTH also have cognitive impairments, which are modulated by the neuroendocrine state. Participants were recruited, including CTTH patients and healthy controls...
March 24, 2017: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/28338144/selective-surface-tension-induced-patterning-on-flexible-textiles-via-click-chemistry
#3
Ben Wang, Yabin Zhang, Li Zhang
A solid surface commonly forms two wetting modes by alternating the type of the liquids, i.e. wetting and nonwetting. Here we report that a textile can be programmed to exhibit three wetting modes by simply alternating the surface tension of the liquids, they are in turn, wetting, selective wetting and nonwetting. The hidden patterns are prepared via a combination of wet chemical etching and two-step UV-induced thiol-ene click chemistry to graft low-surface-tension thiols and high-surface-tension thiols, respectively, on the textile surface...
March 24, 2017: Nanoscale
https://www.readbyqxmd.com/read/28337265/pulmonary-surfactant-synthesis-in-mirna-26a-1-mirna-26a-2-double-knockout-mice-generated-using-the-crispr-cas9-system
#4
Ying-Hui Zhang, Li-Zhi Wu, Hong-Lu Liang, Yang Yang, Jie Qiu, Qing Kan, Wen Zhu, Cheng-Ling Ma, Xiao-Yu Zhou
Pulmonary surfactant (PS), which is synthesized by type II alveolar epithelial cells (AECIIs), maintains alveolar integrity by reducing surface tension. Many premature neonates who lack adequate PS are predisposed to developing respiratory distress syndrome (RDS), one of the leading causes of neonatal morbidity and mortality. PS synthesis is influenced and regulated by various factors, including microRNAs. Previous in vitro studies have shown that PS synthesis is regulated by miR-26a in fetal rat AECIIs. This study aimed to investigate the role of miR-26a in PS synthesis in vivo...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28330700/the-effect-of-kinesio-taping-on-back-pain-in-patients-with-lenke-type-1-adolescent-idiopathic-scoliosis-a-randomized-controlled-trial
#5
Yunus Atici, Canan Gonen Aydin, Aysegul Atici, Mehmet Ozbey Buyukkuscu, Yavuz Arikan, Mehmet Bulent Balioglu
PURPOSE: This study investigated the short-term effects of KT on back pain (BP) in patients with Lenke Type 1 adolescent idiopathic scoliosis (AIS). METHODS: We chosen Lenke Type 1 scoliosis who have had only back pain (the localization of the pain: the only in the apical convex edge). Forty patients suffering from BP with Lenke Type 1 AIS were randomly separated into two groups, Group 1 (20 patients) and Group 2 (20 patients). Group 1 was given KT with tension and home exercises and Group 2 was given KT without tension and home exercises...
March 19, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28330536/-cerebral-venous-thrombosis-misinterpreted-as-migraine
#6
Omar A Karim, Adis Dizdarevic, Mohammad Motawea
A 23-year-old woman with known tension-type headache and in treatment with oral contraceptives was hospitalized with headache, nausea and vomiting during two weeks. Prior to hospitalization the symptoms had been interpreted as migraine. Blood samples including D-dimer were normal. A computed tomography showed cerebral venous thrombosis (CVT), so the patient was treated with anticoagulation drugs and her symptoms remitted slowly. CVT is a dangerous condition, and the symptoms can have a fluctuating course which can mask the diagnosis...
March 13, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28329903/-headache-treatment
#7
Hans Christoph Diener, Dagny Holle-Lee, Steffen Nägel, Charly Gaul
A precondition for the successful treatment of headaches is the correct headache diagnosis. Triptans are effective for attack treatment of migraine and cluster headache. However, there are not effective for the treatment of tension-type headache. For the prevention of frequent episodic migraine betablockers, flunarizine, topiramate and amitriptyline are recommended. For the prevention of chronic migraine evidence is only available for onabotulinumtoxinA and topiramate. For prophylactic treatment of tension-type headaches tricyclic antidepressants are used...
March 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28329901/-pathophysiology-of-headaches
#8
Charly Gaul, Karl Meßlinger, Dagny Holle-Lee, Lars Neeb
Pathophysiological concepts of primary headache diseases have been developed significantly in the last decades. Nevertheless pathophysiology of single diseases is unexplained. Migraine headache arises from activation and sensibilization of trigeminal nociceptors, essential processes are located at the meninges and the meningeal vessels. Calcitonin gene-related peptide (CGRP) seems to have essential importance concerning migraine and cluster headache. Mechanisms leading to peripheral and central sensitization are relevant in chronification of migraine and tension-type headache...
March 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28327150/research-impact-of-systems-level-long-term-care-research-a-multiple-case-study
#9
Anita Kothari, Nedra Peter, Melissa Donskov, Tracy Luciani
BACKGROUND: Traditional reporting of research outcomes and impacts, which tends to focus on research product publications and grant success, does not capture the value, some contributions, or the complexity of research projects. The purpose of this study was to understand the contributions of five systems-level research projects as they were unfolding at the Bruyère Centre for Learning, Research and Innovation (CLRI) in long-term care (LTC) in Ottawa, Ontario, Canada. The research questions were, (1) How are partnerships with research end-users (policymakers, administrators and other public/private organisations) characterised? (2) How have interactions with the CLRI Management Committee and Steering Committee influenced the development of research products? (3) In what way have other activities, processes, unlinked actors or organisations been influenced by the research project activities? METHODS: The study was guided by Kok and Schuit's concept of research impacts, using a multiple case study design...
March 21, 2017: Health Research Policy and Systems
https://www.readbyqxmd.com/read/28326868/a-longitudinal-study-assessing-the-maintenance-condition-of-cadres-of-four-types-of-wheelchairs-provided-in-low-resource-areas
#10
Karen Rispin, Kristofer Riseling, Joy Wee
Wheelchair breakdowns increase the risk of injury and limit the mobility of wheelchair users. In the endeavour to meet the enormous global need for wheelchairs, manufacturers of wheelchairs for low-resource settings face a cost-benefit tension between affordability and durability. Field studies are needed to provide feedback on durability. Four manufacturers provided cadres of wheelchairs to the organization providing rehabilitation to students at a boarding school for children with disabilities in a low-resource area...
March 22, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28323207/l-type-calcium-channel-clarifying-the-oxygen-sensing-hypothesis
#11
Henrietta Cserne Szappanos, Helena Viola, Livia C Hool
The heart is able to respond acutely to changes in oxygen tension. Since ion channels can respond rapidly to stimuli, the "ion channel oxygen sensing hypothesis" has been proposed to explain acute adaptation of cells to changes in oxygen demand. However the exact mechanism for oxygen sensing continues to be debated. Mitochondria consume the lion's share of oxygen in the heart, fuelling the production of ATP that drives excitation and contraction. Mitochondria also produce reactive oxygen species that are capable of altering the redox state of proteins...
March 18, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28321192/quantifying-the-frictional-forces-between-skin-and-nonwoven-fabrics
#12
Kavinda Jayawardana, Nicholas C Ovenden, Alan Cottenden
When a compliant sheet of material is dragged over a curved surface of a body, the frictional forces generated can be many times greater than they would be for a planar interface. This phenomenon is known to contribute to the abrasion damage to skin often suffered by wearers of incontinence pads and bed/chairbound people susceptible to pressure sores. Experiments that attempt to quantify these forces often use a simple capstan-type equation to obtain a characteristic coefficient of friction. In general, the capstan approach assumes the ratio of applied tensions depends only on the arc of contact and the coefficient of friction, and ignores other geometric and physical considerations; this approach makes it straightforward to obtain explicitly a coefficient of friction from the tensions measured...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28319401/using-sound-to-study-the-effect-of-frothers-on-the-break-away-of-air-bubbles-at-an-underwater-capillary
#13
Pengbo Chu, Randolph Pax, Ronghao Li, Ray Langlois, James Andrew Finch
Frothers, a class of surfactants, are widely employed in froth flotation to aid the generation of small bubbles. Their action is commonly explained by their ability to hinder coalescence. There are occasional references suggesting that frother may also play a role in the initial break-up of the injected air mass. This work investigates the possible effect of frother on break-up by monitoring air bubbles produced quasi-statically at an underwater capillary. Under this condition, break-up is isolated from coalescence, and an impact of frothers on the detached bubble can be ascribed to an impact on break-up...
March 20, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28318293/yawning-and-social-styles-different-functions-in-tolerant-and-despotic-macaques-macaca-tonkeana-and-macaca-fuscata
#14
Alessandra Zannella, Roscoe Stanyon, Elisabetta Palagi
Yawning is a multifunctional behavior with a role in social communication. In Old World monkeys, the "tension yawn" is often used as a threat, allowing individuals to completely expose their canines. To explore the role of this phenomenon, we selected 2 closely related species-Japanese macaques (Macaca fuscata) and Tonkean macaques (M. tonkeana)-which differ primarily in terms of their tolerance levels. Japanese macaques are classified as despotic; Tonkean macaques are classified as tolerant. Both species live in multimale-multifemale societies, show a high level of sexual dimorphism, and have comparable yawning repertoires that include displaying a covered teeth yawn and an uncovered gums yawn...
March 20, 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28306299/graviton-mass-might-reduce-tension-between-early-and-late-time-cosmological-data
#15
Antonio De Felice, Shinji Mukohyama
The standard cold dark matter model with a cosmological constant (Λ-CDM) predicts a growth of structures which tends to be higher than the values of redshift space distortion (RSD) measurements if the cosmological parameters are fixed by the cosmic microwave background data. In this Letter, we point out that this discrepancy can be resolved or understood if we assume that the graviton has a small but nonzero mass. In the context of the minimal theory of massive gravity (MTMG), due to infrared Lorentz violations measurable only at present cosmological scales, the graviton acquires a mass without being haunted by unwanted extra degrees of freedom...
March 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28299456/interlocking-horizontal-mattress-suture-versus-kakiuchi-technique-in-repair-of-achilles-tendon-rupture-a-biomechanical-study
#16
Matteo Guzzini, Riccardo Maria Lanzetti, Lorenzo Proietti, Daniele Mazza, Mattia Fabbri, Edoardo Monaco, Germano Ferri, Andrea Ferretti
BACKGROUND: In recent years, the type of surgical treatment for Achilles tendon rupture has been the subject of controversial debate. This biomechanical study evaluates for the first time in literature the ultimate failure load (UFL) of interlocking horizontal mattress (IHM) suture as compared with Kakiuchi suture in Achilles tendon rupture. The hypothesis is that IHM suture can be performed also for Achilles tendon rupture and ensures higher resistance compared with the traditional Kakiuchi suture...
March 15, 2017: Journal of Orthopaedics and Traumatology: Official Journal of the Italian Society of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/28295304/tension-type-headache-the-normal-and-most-prevalent-headache
#17
Rigmor Højland Jensen
PREMISE: Tension-type headache (TTH) is the most prevalent form of primary headache in the general population but paradoxically the least studied headache. PROBLEM: In this article, the epidemiology and diagnostic challenges of TTH are presented and discussed. The typical features and differential diagnosis of TTH are highlighted and the situations more likely to raise doubts are discussed. POTENTIAL SOLUTION: A structured approach to the patient and a better comprehension of the very frequent coexistence of migraine and medication overuse headache in the clinical population are emphasized...
March 13, 2017: Headache
https://www.readbyqxmd.com/read/28293317/tumour-necrosis-factor-%C3%AE-interleukin-1-and-interleukin-6-serum-levels-and-its-correlation-with-pain-severity-in-chronic-tension-type-headache-patients-analysing-effect-of-dexketoprofen-administration
#18
Aldy Safruddin Rambe, Hasan Sjahrir, Moh Hasan Machfoed
AIM: The purpose of this study is to see the effect of Dexketoprofen on TNF-α, IL-1, and IL-6 serum levels in Chronic Tension-Type Headache (CTTH) patients and its correlation with pain severity. METHOD: The study subjects were recruited consecutively from the study population. Venous blood was taken at baseline to measure serum levels of TNF-α, IL-1, and IL-6 and after ten consecutive days of Dexketoprofen 25 mg once daily. RESULTS: Twenty three subjects participated in this study, 3 male (13...
March 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28293156/indications-of-implant-removal-a-study-of-83-cases
#19
Muhammad Haseeb, Muhammad Farooq Butt, Tariq Altaf, Khalid Muzaffar, Anil Gupta, Aleena Jallu
INTRODUCTION: Fracture fixation has become advanced with the advent of new and custom metal implants for each type of bone/fracture. After union though, the implant ceases to be important and may be removed. Routine removal is advocated by some and opposed by others. Nevertheless, some patients require removal of the hardware because of various implant-related problems. Our study was aimed at identifying the most common causes for implant removal. OBJECTIVE: To investigate the common indications of orthopedic implant removal surgeries...
January 2017: International Journal of Health Sciences
https://www.readbyqxmd.com/read/28291086/opioid-type-respiratory-depressant-side-effects-of-cebranopadol-in-rats-are-limited-by-its-nociceptin-orphanin-fq-peptide-receptor-agonist-activity
#20
Klaus Linz, Wolfgang Schröder, Stefanie Frosch, Thomas Christoph
BACKGROUND: Cebranopadol is a first-in-class analgesic with agonist activity at classic opioid peptide receptors and the nociceptin/orphanin FQ peptide receptor. The authors compared the antinociceptive and respiratory depressant effects of cebranopadol and the classic opioid fentanyl and used selective antagonists to provide the first mechanistic evidence of the contributions of the nociceptin/orphanin FQ peptide and μ-opioid peptide receptors to cebranopadol's respiratory side-effect profile...
April 2017: Anesthesiology
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