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https://www.readbyqxmd.com/read/27911283/association-between-physical-activity-and-pain-processing-in-adults-with-chronic-low-back-pain-compared-to-pain-free-controls
#1
Lindsay C Orr, Steven Z George, Corey B Simon
BACKGROUND: Pain sensitivity has been negatively associated with physical activity levels. Few studies have examined associations between experimentally induced pain sensitivity and physical activity in adults with chronic low back pain and pain-free controls. OBJECTIVE: The objective of this study was to examine associations between physical activity levels and how an individual processes pain using experimentally induced pain stimuli. METHODS: Seventy subjects (CLBP = 49; mean age = 46...
November 25, 2016: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/27904643/effects-of-nesting-and-swaddling-on-the-sleep-duration-of-premature-infants-hospitalized-in-neonatal-intensive-care-units
#2
Zahra Abdeyazdan, Maryam Mohammadian-Ghahfarokhi, Zohreh Ghazavi, Majid Mohammadizadeh
BACKGROUND: In neonatal intensive care unit (NICU), neonatal sleep is disrupted due to different factors. Due to the critical role of sleep in premature infants' brain development, this study aimed to investigate the effect of nesting and swaddling on the sleep duration of premature infants hospitalized in NICUs. MATERIALS AND METHODS: In a crossover clinical trial, 42 preterm infants who met the inclusion criteria were enrolled. They were randomly assigned to two groups of nest-swaddle and swaddle-nest...
September 2016: Iranian Journal of Nursing and Midwifery Research
https://www.readbyqxmd.com/read/27896457/the-value-of-quantitative-sensory-testing-in-spine-research
#3
Anja Tschugg, Wolfgang N Löscher, Sara Lener, Sebastian Hartmann, Matthias Wildauer, Sabrina Neururer, Claudius Thomé
The improvement of pain and functionality is the major goal of a surgical intervention. Thus, the purpose of the present prospective study was to evaluate whether subjective sensory deficits in patients with lumbar radiculopathy caused by a lumbar disc herniation are related to clinical status, using several outcome scores and the quantitative sensory testing (QST) pre- and 12 months postoperatively. We applied the QST in 52 patients with a single lumbar disc herniation treated by lumbar sequestrectomy pre- and 12 months postoperatively...
November 28, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27893485/peripheral-neuropathic-pain-a-mechanism-related-organizing-principle-based-on-sensory-profiles
#4
Ralf Baron, Christoph Maier, Nadine Attal, Andreas Binder, Didier Bouhassira, Giorgio Cruccu, Nanna B Finnerup, Maija Haanpää, Per Hansson, Philipp Hüllemann, Troels S Jensen, Rainer Freynhagen, Jeffrey D Kennedy, Walter Magerl, Tina Mainka, Maren Reimer, Andrew S C Rice, Märta Segerdahl, Jordi Serra, Sören Sindrup, Claudia Sommer, Thomas Tölle, Jan Vollert, Rolf-Detlef Treede
Patients with neuropathic pain are heterogeneous in etiology, pathophysiology and clinical appearance. They exhibit a variety of pain-related sensory symptoms and signs (sensory profile). Different sensory profiles might indicate different classes of neurobiological mechanisms and hence subgroups with different sensory profiles might respond differently to treatment.The aim of the investigation was to identify subgroups in a large sample of neuropathic pain patients using hypothesis-free statistical methods on the database of three large multi-national research networks (German Research Network on Neuropathic Pain (DFNS), IMI-Europain, Neuropain)...
November 3, 2016: Pain
https://www.readbyqxmd.com/read/27870648/facilitated-temporal-summation-of-pain-correlates-with-clinical-pain-intensity-after-hip-arthroplasty
#5
Masashi Izumi, Kristian Kjær Petersen, Mogens Berg Laursen, Lars Arendt-Nielsen, Thomas Graven-Nielsen
Widespread hyperalgesia has been found in patients with painful hip osteoarthritis (OA) which can be normalized after total hip arthroplasty (THA) if patients have no residual postoperative pain. This study characterized the preoperative somatosensory profiles and provided possible interpretation of underlying pain mechanisms that might influence the development of postoperative pain. Forty hip OA patients with unilateral pain were assessed before and 6 weeks post-THA and compared with forty asymptomatic control subjects...
November 17, 2016: Pain
https://www.readbyqxmd.com/read/27829902/hydroxy-functionalized-hyper-cross-linked-ultra-microporous-organic-polymers-for-selective-co2-capture-at-room-temperature
#6
Partha Samanta, Priyanshu Chandra, Sujit K Ghosh
Two hydroxy-functionalized hyper-cross-linked ultra-microporous compounds have been synthesized by Friedel-Crafts alkylation reaction and characterised with different spectroscopic techniques. Both compounds exhibit an efficient carbon dioxide uptake over other gases like N2, H2 and O2 at room temperature. A high isosteric heat of adsorption (Qst) has been obtained for both materials because of strong interactions between polar -OH groups and CO2 molecules.
2016: Beilstein Journal of Organic Chemistry
https://www.readbyqxmd.com/read/27828567/factors-associated-with-negative-self-perception-of-oral-health-among-institutionalized-elderly
#7
Laércio Almeida de Melo, Meily de Mello Sousa, Annie Karoline Bezerra de Medeiros, Adriana da Fonte Porto Carreiro, Kenio Costa de Lima
The aim of this study was to determine self-perception of oral-health in institutionalized elderly, and look into the sociodemographic and clinical aspects associated with negative self-perception. One hundred and sixty-six elderly were assessed by answering a self-perception question that predicts the GOHAI (Geriatric Oral Health Assessment Index). Sociodemographic data was obtained from a previously validated questionnaire and clinical data taken from the WHO file and QST-TMD used to check the existence of TMD (temporomandibular disturbance)...
November 2016: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/27780176/a-population-based-study-of-quantitative-sensory-testing-in-adolescents-with-and-without-chronic-pain
#8
See Wan Tham, Tonya M Palermo, Amy Lewandowski Holley, Chuan Zhou, Audun Stubhaug, Anne-Sofie Furberg, Christopher Sivert Nielsen
Quantitative sensory testing (QST) has been used to characterize pain sensitivity in individuals with and without pain conditions. Research remains limited in pediatric populations, hindering the ability to expand the utility of QST toward its potential application in clinical settings and clinical predictive value. The aims of this study were to examine pain sensitivity using QST in adolescents with chronic pain compared to adolescents without chronic pain and identify predictors of pain sensitivity. A population-based study conducted from 2010 to 2011 provided data on 941 adolescents, 197 were classified as having chronic pain and 744 were classified without chronic pain...
September 15, 2016: Pain
https://www.readbyqxmd.com/read/27776990/functional-characterization-of-at-level-hypersensitivity-in-patients-with-spinal-cord-injury
#9
Carola Vogel, Roman Rukwied, Lenka Stockinger, Marcus Schley, Martin Schmelz, Wolfgang Schleinzer, Christoph Konrad
: At-level and above-level hypersensitivity was assessed in patients with chronic complete thoracic spinal cord injury (SCI). Patients were classified using somatosensory mapping (brush, cold, pinprick) and assigned into 2 groups (ie, patients with at-level hypersensitivity [SCIHs, n = 8] and without at-level hypersensitivity [SCINHs, n = 7]). Gender and age-matched healthy subjects served as controls. Quantitative sensory testing (QST), electrically- and histamine-induced pain and itch, laser Doppler imaging, and laser-evoked potentials (LEP) were recorded at-level and above-level in SCI-patients...
October 22, 2016: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/27770480/agreement-between-quantitative-and-qualitative-sensory-testing-of-changes-in-oro-facial-somatosensory-sensitivity
#10
J Agbaje, A De Laat, P Constantinus, P Svensson, L Baad-Hansen
Qualitative somatosensory testing (QualST) is a simple chairside test. It can be used to roughly assess the presence or absence of altered somatosensory function. To use QualST clinically, it is important to assess its agreement with quantitative sensory testing (QST). The aims of this study were to assess the agreement between QST and QualST when testing the modulation of facial sensitivity by capsaicin in healthy participants and to explore the agreement between QST and QualST in assessing the intraoral sensory function in clinical atypical odontalgia (AO) patients...
October 22, 2016: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/27749073/theoretical-investigations-of-co2-and-h2-sorption-in-robust-molecular-porous-materials
#11
Tony Pham, Katherine A Forrest, KaiJie Chen, Amrit Kumar, Michael J Zaworotko, Brian Space
Molecular simulations of CO2 and H2 sorption were performed in MPM-1-Cl and MPM-1-TIFSIX, two robust molecular porous materials (MPMs) with the empirical formula [Cu2(adenine)4Cl2]Cl2 and [Cu2(adenine)4(TiF6)2], respectively. Recent experimental studies have shown that MPM-1-TIFSIX displayed higher CO2 uptake and isosteric heat of adsorption (Qst) than MPM-1-Cl [Nugent, P. S.; et al. J. Am. Chem. Soc. 2013, 135, 10950-10953.]. This was verified through the simulations executed herein, as the presented simulated CO2 sorption isotherms and Qst values are in very good agreement with the corresponding experimental data for both MPMs...
October 17, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/27723182/effect-of-medical-cannabis-on-thermal-quantitative-measurements-of-pain-in-patients-with-parkinson-s-disease
#12
A Shohet, A Khlebtovsky, N Roizen, Y Roditi, R Djaldetti
BACKGROUND: Cannabis can alleviate pain of various etiologies. This study assessed the effect of cannabis on motor symptoms and pain parameters in patients with Parkinson's disease (PD). METHODS: Twenty patients with PD who were licensed to use cannabis underwent evaluation before and 30 min after cannabis consumption and again after long-term use. Motor function was assessed with the Unified PD Rating scale (UPDRS) by two raters, one blinded. Pain was assessed with the Pain Rating Index (PRI) and Visual Analogue Scale (VAS) of the short-form McGill Pain Questionnaire...
October 10, 2016: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/27696852/multifunctional-porous-organic-polymers-tuning-of-porosity-co2-and-h2-storage-and-visible-light-driven-photocatalysis
#13
Sujoy Bandyopadhyay, Amith G Anil, Anto James, Abhijit Patra
A series of porous organic polymers (POPs) were fabricated based on the boron dipyrromethene (BODIPY) core. The variation of the substituents in the BODIPY core and the fine tuning of the Sonogashira polycondenzation reaction with 1,3,5-triethynylbenzene led to the formation of POPs with a wide range of surface area and porosity. A tenfold increase in surface area from 73 m2g-1 in BDT1a polymer to 1010 m2g-1 in BDT3 was obtained. Simultaneously, the porosity was changed from mesoporous to ultramicroporous. The surface area of BDT3 turned out to be the highest reported so far for BODIPY based POPs...
October 3, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27685701/assessment-of-somatosensory-function-in-patients-with-idiopathic-dry-eye-symptoms
#14
Anat Galor, Roy C Levitt, Katherine T McManus, Jerry P Kalangara, Benjamin E Seiden, Jasmine J Park, Derek B Covington, Constantine D Sarantopoulos, Elizabeth R Felix
Importance: Somatosensory dysfunction likely underlies dry eye (DE) symptoms in many individuals yet remains an understudied component of the disease. Its presence has important diagnostic and therapeutic implications. Objective: To assess the integrity of nociceptive system processes in persons with DE and ocular pain using quantitative sensory testing (QST) techniques applied at a site remote from the eye. Design, Setting, and Participants: A cross-sectional study conducted at Miami Veterans Affairs Hospital included 118 individuals with a wide variety of DE symptoms and signs...
November 1, 2016: JAMA Ophthalmology
https://www.readbyqxmd.com/read/27676667/subtle-sensory-abnormalities-detected-by-quantitative-sensory-testing-in-patients-with-trigeminal-neuralgia
#15
Herta Flor, Dirk Rasche, Ariyan Pirayesh Islamian, Claudia Rolko, Pinar Yilmaz, Marc Ruppolt, H Holger Capelle, Volker Tronnier, Joachim K Krauss
BACKGROUND: Trigeminal neuralgia (TN) is characterized by paroxysmal pain attacks affecting the somatosensory distributions of the trigeminal nerve. It is thought to be associated with a neurovascular conflict most frequently, but pathomechanisms have not been fully elucidated. In general, no sensory deficit is found in routine clinical examination. There is limited data available, however, showing subtle subclinical sensory deficits upon extensive testing. OBJECTIVE: We used quantitative sensory testing (QST) to detect abnormalities in sensory processing in patients with TN by comparing the affected and non-affected nerve branches with their contralateral counterparts and by comparing the results of the patients with those of controls...
September 2016: Pain Physician
https://www.readbyqxmd.com/read/27660486/prognostic-value-of-quantitative-sensory-testing-in-low-back-pain-a-systematic-review-of-the-literature
#16
REVIEW
Anna Marcuzzi, Catherine M Dean, Paul J Wrigley, Rosemary J Chakiath, Julia M Hush
Quantitative sensory testing (QST) measures have recently been shown to predict outcomes in various musculoskeletal and pain conditions. The aim of this systematic review was to summarize the emerging body of evidence investigating the prognostic value of QST measures in people with low back pain (LBP). The protocol for this review was prospectively registered on the International Prospective Register of Systematic Reviews. An electronic search of six databases was conducted from inception to October 2015. Experts in the field were contacted to retrieve additional unpublished data...
2016: Journal of Pain Research
https://www.readbyqxmd.com/read/27637902/improvement-of-sensory-function-after-sequestrectomy-for-lumbar-disc-herniation-a-prospective-clinical-study-using-quantitative-sensory-testing
#17
Anja Tschugg, Sara Lener, Sebastian Hartmann, Sabrina Neururer, Matthias Wildauer, Claudius Thomé, Wolfgang N Löscher
BACKGROUND: Previous studies have investigated sensory recovery in patients with lumbar disc herniation using rather subjective methods. There have been no reports on changes of sensory function in patients suffering from a preoperative sensory deficit using quantitative sensory testing (QST). The aims of this prospective study were (1) to assess the recovery of preoperative sensory dysfunction after lumbar sequestrectomy and (2) to quantify the strength of relationship between a sensory deficit and the patient's quality of life...
September 16, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27597151/adsorptive-separation-of-xenon-krypton-mixtures-using-a-zirconium-based-metal-organic-framework-with-high-hydrothermal-and-radioactive-stabilities
#18
Seung-Joon Lee, Tae-Ung Yoon, Ah-Reum Kim, Seo-Yul Kim, Kyung-Ho Cho, Young Kyu Hwang, Jei-Won Yeon, Youn-Sang Bae
The separation of xenon/krypton mixtures is important for both environmental and industrial purposes. The potential of three hydrothermally stable MOFs (MIL-100(Fe), MIL-101(Cr), and UiO-66(Zr)) for use in Xe/Kr separation has been experimentally investigated. From the observed single-component Xe and Kr isotherms, isosteric heat of adsorption (Qst(o)), and IAST-predicted Xe/Kr selectivities, we observed that UiO-66(Zr) has the most potential as an adsorbent among the three candidate MOFs. We performed dynamic breakthrough experiments with an adsorption bed filled with UiO-66(Zr) to evaluate further the potential of UiO-66(Zr) for Xe/Kr separation under mixture flow conditions...
December 15, 2016: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/27571310/population-genetic-structure-of-rhizoctonia-oryzae-sativae-from-rice-in-latin-america-and-its-adaptive-potential-to-emerge-as-pathogen-on-urochloa-pastures
#19
Danilo Augusto Santos Pereira, Paulo Ceresini, Vanina Lilián Castroagudín, Lina Maria Ramos Molina, Edisson Chavarro Mesa, Matheus Mereb Negrisoli, Samara Nunes Campos, Mauro Eduardo de Souza Pegolo, Hélio Minoru Takada
The fungus Rhizoctonia oryzae-sativae is an important pathogen that causes the aggregated sheath spot disease on rice. In this study, we investigated the genetic structure of rice-adapted populations of R. oryzae-sativae sampled from traditional rice-cropping areas from the Paraíba Valley, São Paulo, Brazil, and from Meta, in the Colombian Llanos, in South America. We used five microsatellite loci to measure population differentiation and infer the pathogen's reproductive system. Gene flow was detected among the three populations of the R...
August 29, 2016: Phytopathology
https://www.readbyqxmd.com/read/27538534/nervous-system-sensitization-as-a-predictor-of-outcome-in-the-treatment-of-peripheral-musculoskeletal-conditions-a-systematic-review
#20
Helen O'Leary, Keith M Smart, Niamh A Moloney, Catherine M Doody
BACKGROUND: Research suggests that peripheral and central nervous system sensitization can contribute to the overall pain experience in peripheral musculoskeletal (MSK) conditions. It is unclear, however, whether sensitization of the nervous system results in poorer outcomes following the treatment. This systematic review investigated whether nervous system sensitization in peripheral MSK conditions predicts poorer clinical outcomes in response to a surgical or conservative intervention...
August 19, 2016: Pain Practice: the Official Journal of World Institute of Pain
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