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https://www.readbyqxmd.com/read/28813997/dynamic-elasticity-measurement-for-prosthetic-socket-design
#1
Yujin Kim, Junghoon Kim, Hyeryon Son, Youngjin Choi
The paper proposes a novel apparatus to measure the dynamic elasticity of human limb in order to help the design and fabrication of the personalized prosthetic socket. To take measurements of the dynamic elasticity, the desired force generated as an exponential chirp signal in which the frequency increases and amplitude is maintained according to time progress is applied to human limb and then the skin deformation is recorded, ultimately, to obtain the frequency response of its elasticity. It is referred to as a Dynamic Elasticity Measurement Apparatus (DEMA) in the paper...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813979/towards-low-back-support-with-a-passive-biomimetic-exo-spine
#2
Matthias B Naf, Laura De Rijcke, Carlos Rodriguez Guerrero, Matthew Millard, Bram Vanderborght, Dirk Lefeber
Low-Back Pain (LBP) affects a large portion of the working population. Preventive exoskeletons have been proposed to reduce the moments on the lower back, specifically around the lumbosacral (L5/S1) joint. High correlation has been shown, between reducing the moments around the L5/S1 joint and intervertebral compression forces, which in turn have been identified as a risk factor for developing LBP. However, most passive back support exoskeletons use rigid plates or stiff beams to support the spine that limit the range of motion of the wearer...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813821/gait-training-assist-system-of-a-lower-limb-prosthetic-visualizing-muscle-activation-pattern-using-a-color-depth-sensor
#3
Kunihiro Ogata, Tomoki Mita, Toshiaki Tsuji, Yoshio Matsumoto
Some unilateral lower-limb amputees load the intact limb more than the prosthetic limb. This can cause chronic pains, fatigue, lumbago, and joint diseases, including knee osteoarthritis. To avoid and counteract these symptoms it is necessary to improve their asymmetric gait. Increasing the function of the hip abductor muscle is important to maintaining symmetrical weight distribution. Therefore, the purpose of this study is to develop a training assist system, which estimates and visualizes an abductor muscle by using a color-depth sensor...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813618/whole-exome-sequencing-identifies-novel-variants-for-tooth-agenesis
#4
N Dinckan, R Du, L E Petty, Z Coban-Akdemir, S N Jhangiani, I Paine, E H Baugh, A P Erdem, H Kayserili, H Doddapaneni, J Hu, D M Muzny, E Boerwinkle, R A Gibbs, J R Lupski, Z O Uyguner, J E Below, A Letra
Tooth agenesis is a common craniofacial abnormality in humans and represents failure to develop 1 or more permanent teeth. Tooth agenesis is complex, and variations in about a dozen genes have been reported as contributing to the etiology. Here, we combined whole-exome sequencing, array-based genotyping, and linkage analysis to identify putative pathogenic variants in candidate disease genes for tooth agenesis in 10 multiplex Turkish families. Novel homozygous and heterozygous variants in LRP6, DKK1, LAMA3, and COL17A1 genes, as well as known variants in WNT10A, were identified as likely pathogenic in isolated tooth agenesis...
August 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28813550/drug-free-interventions-to-reduce-pain-or-opioid-consumption-after-total-knee-arthroplasty-a-systematic-review-and-meta-analysis
#5
Dario Tedesco, Davide Gori, Karishma R Desai, Steven Asch, Ian R Carroll, Catherine Curtin, Kathryn M McDonald, Maria P Fantini, Tina Hernandez-Boussard
Importance: There is increased interest in nonpharmacological treatments to reduce pain after total knee arthroplasty. Yet, little consensus supports the effectiveness of these interventions. Objective: To systematically review and meta-analyze evidence of nonpharmacological interventions for postoperative pain management after total knee arthroplasty. Data Sources: Database searches of MEDLINE (PubMed), EMBASE (OVID), Cochrane Central Register of Controlled Trials (CENTRAL), Cochrane Database of Systematic Reviews, Web of Science (ISI database), Physiotherapy Evidence (PEDRO) database, and ClinicalTrials...
August 16, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/28812209/effect-of-vitamin-d-supplementation-in-chronic-widespread-pain-a-systematic-review-and-meta-analysis
#6
Wai Chung Yong, Anawin Sanguankeo, Sikarin Upala
Chronic non-specific widespread pain (CWP) including fibromyalgia (FMS) is characterized by widespread pain, reduced pain threshold, and multiple tender points on examination, causing disability and decreased quality of life. Vitamin D has been proposed as an associated factor in CWP. This meta-analysis aimed to explore the benefit of vitamin D supplementation in the management of CWP. A comprehensive search of the CENTRAL, MEDLINE, and Embase databases was performed from inception through January 2017. The inclusion criterion was the randomized clinical trials' evaluating the effects of vitamin D treatment in adult subjects with CWP or FMS...
August 15, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28812173/melatonin-attenuates-pain-hypersensitivity-and-decreases-astrocyte-mediated-spinal-neuroinflammation-in-a-rat-model-of-oxaliplatin-induced-pain
#7
Ye-Song Wang, Yuan-Yuan Li, Wei Cui, Li-Bin Li, Zhao-Cai Zhang, Bao-Ping Tian, Gen-Sheng Zhang
Neuroinflammatory response in spinal dorsal horn has been demonstrated to be a critical factor in oxaliplatin-induced pain. Melatonin has been shown to have anti-inflammatory and anti-allodynia effects in both preclinical and clinical studies. In the present study, we investigated the role of systemic administration of melatonin on oxaliplatin-induced pain. Intraperitoneal (i.p.) injection with oxaliplatin induced significantly mechanical allodynia and thermal hyperalgesia. Melatonin (i.p.) significantly alleviated mechanical allodynia and thermal hyperalgesia in the oxaliplatin but not sham-treated rats...
August 15, 2017: Inflammation
https://www.readbyqxmd.com/read/28811854/factors-associated-with-psycho-cognitive-functions-in-patients-with-persistent-pain-after-surgery-for-femoral-neck-fracture
#8
Atsushi Kitayama, Mitsumasa Hida, Hidenobu Takami, Naoki Hirata, Yuko Deguchi, Kazuya Miyaguchi, Masako Nakazono, Rie Nakagawa, Noriyuki Fukumoto, Katsumi Hamaoka
BACKGROUND: The aim of the study was to address issues arising from fracture of the femoral neck in elderly individuals, the prevalence of which continues to increase in Japan. The prevalence is increasing in Japan and there have been many reports on physical functions such as prevention of a fall. However, there have been a few studies that focus on psycho-cognitive functions. We must examine factors in patients with fractured femur necks to develop methods to assist affected patients...
September 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28811828/nonvitamin-nonmineral-dietary-supplement-use-among-adults-with-fibromyalgia-united-states-2007-2012
#9
Termeh Feinberg, Christa Lilly, Kim Innes
BACKGROUND: Fibromyalgia (FMS) is a pain condition affecting 2-6% of US adults; effective treatment remains limited. Determinants of nonvitamin, nonmineral dietary supplement (NVNM) use among adults with FMS are not well-studied. We investigated the relation of NVNM use to FMS, and trends, in two nationally representative samples of US adults ≥18 years. METHODS: Data were drawn from 2007 and 2012 National Health Interview Surveys (N's = 20127 and 30672, resp.)...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28811042/understanding-readmissions-in-children-undergoing-surgery-a-pediatric-nsqip-analysis
#10
Afif N Kulaylat, Dorothy V Rocourt, Anthony Y Tsai, Kathryn L Martin, Brett W Engbrecht, Mary C Santos, Robert E Cilley, Christopher S Hollenbeak, Peter W Dillon
BACKGROUND: Readmission is increasingly being utilized as an important clinical outcome and measure of hospital quality. Our aim was to delineate rates, risk factors, and reasons for unplanned readmission in pediatric surgery. MATERIALS AND METHODS: Retrospective review of pediatric patients (n=130,274) undergoing surgery (2013-2014) at hospitals enrolled in the Pediatric National Surgical Quality Improvement Program (NSQIP-P) was performed. Logistic regression was used to model factors associated with unplanned 30-day readmission...
July 31, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28810599/effects-of-niflumic-acid-on-%C3%AE-aminobutyric-acid-induced-currents-in-isolated-dorsal-root-ganglion-neurons-of-neuropathic-pain-rats
#11
Li-Jie Wang, Yang Wang, Meng-Jie Chen, Zhen-Pu Tian, Bi-Han Lu, Ke-Tao Mao, Liang Zhang, Lei Zhao, Li-Ya Shan, Li Li, Jun-Qiang Si
Niflumic acid (NFA) is a type of non-steroidal anti-inflammatory drug. Neuropathic pain is caused by a decrease in presynaptic inhibition mediated by γ-aminobutyric acid (GABA). In the present study, a whole-cell patch-clamp technique and intracellular recording were used to assess the effect of NFA on GABA-induced inward current in dorsal root ganglion (DRG) neurons of a chronic constriction injury (CCI) model. It was observed that 1-1,000 µmol/l GABA induced a concentration-dependent inward current in DRG neurons...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810129/opioid-prescribing-for-chronic-pain-in-a-community-based-healthcare-system
#12
Robert J Romanelli, Laurence I Ikeda, Braden Lynch, Terri Craig, Joseph C Cappelleri, Trevor Jukes, Denis Y Ishisaka
OBJECTIVES: We sought to evaluate opioid prescribing in an ambulatory setting among patients with noncancer chronic pain (CP). STUDY DESIGN: Cross-sectional analysis. METHODS: We identified patients with at least 2 CP encounters at least 30 days apart in 2012 in the electronic health records of a community-based healthcare delivery system in northern California. We used logistic regression models to assess associations of receiving an opioid prescription with respect to number and type of CP conditions and patient demographics and characteristics...
May 1, 2017: American Journal of Managed Care
https://www.readbyqxmd.com/read/28809766/crispr-cas9-editing-of-nf1-gene-identifies-crmp2-as-a-therapeutic-target-in-neurofibromatosis-type-1-related-pain-that-is-reversed-by-s-lacosamide
#13
Aubin Moutal, Xiaofang Yang, Wennan Li, Kerry B Gilbraith, Shizhen Luo, Song Cai, Liberty François-Moutal, Lindsey A Chew, Seul Ki Yeon, Shreya S Bellampalli, Chaoling Qu, Jennifer Y Xie, Mohab M Ibrahim, May Khanna, Ki Duk Park, Frank Porreca, Rajesh Khanna
Neurofibromatosis type 1 (NF1) is a rare autosomal dominant disease linked to mutations of the Nf1 gene. Patients with NF1 commonly experience severe pain. Studies on mice with Nf1 haploinsufficiency have been instructive in identifying sensitization of ion channels as a possible cause underlying the heightened pain suffered by patients with NF1. However, behavioral assessments of Nf1 mice have led to uncertain conclusions about the potential causal role of Nf1 in pain. We used the clustered regularly interspaced short palindromic repeats (CRISPR)-associated 9 (CRISPR/Cas9) genome editing system to create and mechanistically characterize a novel rat model of NF1-related pain...
July 3, 2017: Pain
https://www.readbyqxmd.com/read/28809075/allosteric-modulation-of-%C3%AE-4%C3%AE-2-nicotinic-acetylcholine-receptors-desformylflustrabromine-potentiates-antiallodynic-response-of-nicotine-in-a-mouse-model-of-neuropathic-pain
#14
D Bagdas, D Ergun, A Jackson, W Toma, M K Schulte, M I Damaj
BACKGROUND: Neuronal nicotinic acetylcholine receptors (nAChRs) are ligand-gated ion channels. The α4β2 subtype of nAChRs plays an important role in the mediation of pain and several nicotine-evoked responses. Agonists and partial agonists of α4β2 nAChRs show efficacy in animal pain models. In addition, the antinociceptive properties of nicotine, a non-selective nAChR agonist with a high affinity for α4β2 nAChRs, is well-known. There is a growing body of evidence pointing to allosteric modulation of nAChRs as an alternative treatment strategy in experimental pain...
August 14, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28809024/chicken-induced-pluripotent-stem-cells-establishment-and-characterization
#15
Aurelie Fuet, Bertrand Pain
In mammals, the introduction of the OSKM (Oct4, Sox2, Klf4, and c-Myc) genes into somatic cells has allowed generating induced pluripotent stem (iPS) cells. So far, this process has been only clearly demonstrated in mammals. Here, using chicken as an avian model, we describe a set of protocols allowing the establishment, characterization, maintenance, differentiation, and injection of putative reprogrammed chicken Induced Pluripotent Stem (iPS) cells.
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28808829/norwegian-reference-values-for-the-short-form-health-survey-36-development-over-time
#16
Ellisiv L Jacobsen, Asta Bye, Nina Aass, Sophie D Fosså, Kjersti S Grotmol, Stein Kaasa, Jon Håvard Loge, Torbjørn Moum, Marianne J Hjermstad
PURPOSE: Reference values for patient-reported outcome measures are useful for interpretation of results from clinical trials. The study aims were to collect Norwegian SF-36 reference values and compare with data from 1996 to 2002. METHODS: In 2015, SF-36 was sent by mail to a representative sample of the population (N = 6165). Time trends and associations between background variables and SF-36 scale scores were compared by linear regression models. RESULTS: The 2015 response rate was 36% (N = 2118) versus 67% (N = 2323) in 1996 and 56% (N = 5241) in 2002...
August 14, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/28807753/a-critical-evaluation-of-validity-and-utility-of-translational-imaging-in-pain-and-analgesia-utilizing-functional-imaging-to-enhance-the-process
#17
REVIEW
Jaymin Upadhyay, Christian Geber, Richard Hargreaves, Frank Birklein, David Borsook
Assessing clinical pain and metrics related to function or quality of life predominantly relies on patient reported subjective measures. These outcome measures are generally not applicable to the preclinical setting where early signs pointing to analgesic value of a therapy are sought, thus introducing difficulties in animal to human translation in pain research. Evaluating brain function in patients and respective animal model(s) has the potential to characterize mechanisms associated with pain or pain-related phenotypes and thereby provide a means of laboratory to clinic translation...
August 11, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28807538/lactose-malabsorption-and-taste-aversion-learning
#18
Joe Arthurs, Jian-You Lin, Roberto Ocampo, Steve Reilly
Consumption of foods can be suppressed by two feeding system defense mechanisms: conditioned taste aversion (CTA) or taste avoidance learning (TAL). There is a debate in the literature about which form of intake suppression is caused by various aversive stimuli. For instance, illness-inducing stimuli like lithium chloride are the gold standard for producing CTA and external (or peripheral) painful stimuli, such as footshock, are the traditional model of TAL. The distinction between CTA and TAL, which have identical effects on intake, is based on differential effects on palatability...
August 11, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28807135/suicidal-ideation-and-suicidal-self-directed-violence-following-clinician-initiated-prescription-opioid-discontinuation-among-long-term-opioid-users
#19
Michael I Demidenko, Steven K Dobscha, Benjamin J Morasco, Thomas H A Meath, Mark A Ilgen, Travis I Lovejoy
OBJECTIVE: Little is known about patient outcomes following discontinuation of opioid therapy, which may include suicidal ideation (SI) and suicidal self-directed violence (SSV). The purpose of this study was to examine correlates of SI and non-fatal SSV in a sample of patients discontinued from long-term opioid therapy (LTOT). METHOD: Five hundred-nine Veterans Health Administration (VHA) patients whose clinicians discontinued them from LTOT were selected from a national cohort of VHA patients who discontinued opioids in 2012...
July 2017: General Hospital Psychiatry
https://www.readbyqxmd.com/read/28807027/health-related-quality-of-life-in-the-brazilian-amazon-a-population-based-cross-sectional-study
#20
Marcus Tolentino Silva, Monica Caicedo Roa, Tais Freire Galvao
BACKGROUND: To analyze perceptions of health-related quality of life and associated factors in populations from the Manaus Metropolitan Region. METHODS: We conducted a population-based cross-sectional study from May to August 2015. Adults aged 18 years and older were selected using probabilistic three-phase cluster sampling and stratified by sex and age, based on official estimates. Quality of life data were collected using the European Quality of Life 5-Dimensions 3-Levels (EQ-5D-3L) along with socioeconomic, demographic, and health perception data...
August 14, 2017: Health and Quality of Life Outcomes
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