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Sensory evaluation

Ravinder Bamba, Thanapong Waitayawinyu, Ratnam Nookala, David Colton Riley, Richard B Boyer, Kevin W Sexton, Chinnakart Boonyasirikool, Sunyarn Niempoog, Nathaniel D Kelm, Mark D Does, Richard D Dortch, Robert Bruce Shack, Wesley P Thayer
BACKGROUND: Peripheral nerve injury can have a devastating impact on our military and veteran population. Current strategies for peripheral nerve repair include techniques such as nerve tubes, nerve grafts, tissue matrices, and nerve growth guides to enhance the number of regenerating axons. Even with such advanced techniques, it takes months to regain function. In animal models, polyethylene glycol (PEG) therapy has shown to improve both physiologic and behavioral outcomes after nerve transection by fusion of a portion of the proximal axons to the distal axon stumps...
November 2016: Journal of Trauma and Acute Care Surgery
Barbara M Schupak, Raju K Parasher, Genevieve Pinto Zipp
OBJECTIVE: We established test-retest reliability of electrodermal markers used to quantify physiological response to sensation using the Sensory Challenge Protocol in children with and without autism spectrum disorder (ASD). METHOD: Electrodermal activity (EDA) was measured during rest and in response to sensory inputs. Fourteen children with ASD and 18 typically developing children were tested and retested after 2-6 wk on skin conductance response, skin conductance level, nonspecific skin conductance response, and habituation...
November 2016: American Journal of Occupational Therapy: Official Publication of the American Occupational Therapy Association
Chuanjun Zhuo, Jiajia Zhu, Chunli Wang, Hongru Qu, Xiaolei Ma, Wen Qin
Alterations in grey matter structure and functional connectivity (FC) are pathological features of major depressive disorder (MDD). However, the relationship between brain structural and functional impairments in MDD remains uncertain. Thus, the aim of this study was to investigate the relationship between alterations in grey matter volume (GMV) and resting-state global functional connectivity density (rs-gFCD) in MDD. Forty-five patients with MDD and 48 healthy controls underwent structural and resting-state functional magnetic resonance imaging (fMRI)...
October 20, 2016: Brain Imaging and Behavior
P K Prasanth Kumar, T Jeyarani, A G Gopala Krishna
Phytonutrients retained palm olein (PRPOL) was prepared and blended into butterfat at different ratios. The physicochemical characteristics and the phytonutrient composition of blends, as well as its utilization in the preparation of functional chocolate spread were evaluated. The results showed that the redness, yellowness, slip melting point, free fatty acids, peroxide value, iodine value, unsaponifiable matter, diacylglycerol and monoacylglycerol increased while lightness, saponification value, and triacylglycerol significantly decreased upon incorporation of increased quantities of PRPOL into butterfat...
July 2016: Journal of Food Science and Technology
Ida Steen, Sandra S Waehrens, Mikael A Petersen, Morten Münchow, Wender L P Bredie
The present study aimed to investigate coffee flavour perception and release as function of serving temperature to support standardisation in the specialty coffee branch. The coffee cultivar Bourbon Caturra was evaluated at six serving temperatures ranging from 31°C to 62°C. Coffee samples were analysed by dynamic headspace sampling gas chromatography-mass spectrometry and descriptive analyses using sip-and-spit tasting. The release of volatiles followed mostly the van't Hoff principle and was exuberated at temperatures above 40°C...
March 15, 2017: Food Chemistry
Maria Gabriella Di Serio, Lucia Giansante, Giuseppina Di Loreto, Angelo Faberi, Lorenzo Ricchetti, Luciana Di Giacinto
The quality and genuineness of extra-virgin olive oils (EVOOs) were assessed following the methods and parameters of EU Commission Regulation N° 2568/91/EEC and subsequent modifications, which also set specific limits for fatty-acid ethyl esters (FAEEs). This study included a subset of EVOOs from among 399 samples analysed as part of a monitoring study for FAEEs in EVOOs. The subset was subjected to statistical evaluation to quantify the relationships between FAEE content and sensory defects associated with fermentation: fusty/muddy sediment, musty/humid/earthy, and winey/vinegary...
March 15, 2017: Food Chemistry
Zhuo Wang, Alan A Stocker, Daniel D Lee
The efficient coding hypothesis assumes that biological sensory systems use neural codes that are optimized to best possibly represent the stimuli that occur in their environment. Most common models use information-theoretic measures, whereas alternative formulations propose incorporating downstream decoding performance. Here we provide a systematic evaluation of different optimality criteria using a parametric formulation of the efficient coding problem based on the Lp reconstruction error of the maximum likelihood decoder...
October 20, 2016: Neural Computation
Gregory G Billy, Ji Lin, Mengzhao Gao, Mosuk X Chow
STUDY DESIGN: Retrospective clinical outcome analysis. OBJECTIVE: To evaluate and determine whether demographic, comorbid factors, or physical examination findings may predict the outcome of caudal epidural steroid injections in managing patients with chronic low back pain and radiculopathy SUMMARY OF BACKGROUND DATA:: The caudal epidural approach is commonly utilized with patients who are on anticoagulation or who have had prior lumbar surgery to treat L5 or S1 radiculopathies...
October 19, 2016: Clinical Spine Surgery
Nuray Erin, Tümay İpekçi, Bahar Akkaya, İrem Hicran Özbudak, Mehmet Baykara
Calcitonin Gene-related Peptide (CGRP), Vasoactive Intestinal Peptide (VIP) and Substance P (SP) are sensory neuropeptides which may alter cancer growth through modulation of chronic inflammation. We recently reported that SP suppresses breast cancer growth and metastasis through neuroimmune modulation. These neuropeptides are hydrolyzed by Neprilysin (NEP) to bioactive fragments. Decreased activity of NEP was reported in clear cell and chromophobe type renal cell carcinoma (RCC). It is however not known how the levels of neuropeptides hydrolyzed with NEP changes in RCC...
October 19, 2016: Cancer Microenvironment: Official Journal of the International Cancer Microenvironment Society
Pekka Hautasaari, Andrej M Savić, Otto Loberg, Eini Niskanen, Jaakko Kaprio, Urho M Kujala, Ina M Tarkka
Associations between long-term physical activity and cortical function and brain structure are poorly known. Our aim was to assess whether brain functional and/or structural modulation associated with long-term physical activity is detectable using a discordant monozygotic male twin pair design. Nine monozygotic male twin pairs were carefully selected for an intrapair difference in their leisure-time physical activity of at least three years duration (mean age 34 ± 1 years). We registered somatosensory mismatch response (SMMR) in EEG to electrical stimulation of fingers and whole brain MR images...
October 19, 2016: Brain Topography
Tina Gupta, Steven M Silverstein, Jessica A Bernard, Brian P Keane, Thomas V Papathomas, Andrea Pelletier-Baldelli, Derek J Dean, Raeana E Newberry, Ivanka Ristanovic, Vijay A Mittal
Patients with psychosis exhibit a reduced susceptibility to depth inversion illusions (DII) in which a physically concave surface is perceived as convex (e.g., the hollow mask illusion). Here, we examined the extent to which lessened susceptibility to DII characterized youth at ultra high risk (UHR) for psychosis. In this study, 44 UHR participants and 29 healthy controls judged the apparent convexity of face-like human masks, two of which were concave and the other convex. One of the concave masks was painted with realistic texture to enhance the illusion; the other was shown without such texture...
2016: NeuroImage: Clinical
Hatice Kose Ozlece, Nergiz Huseyinoglu, Mustafa Gok, Faik Ilik
PURPOSE: In this study, we evaluated the ulnar nerve of patients diagnosed with carpal tunnel syndrome (CTS) using electrophysiology and ultrasonography. METHODS: The study included 86 patients (136 hands) and 39 controls (78 hands) with normal electrophysiological assessment. According to Bland's classification, patients were divided into group 1 (grades 1-3 CTS) or group 2 (grades 4-6 CTS). The ulnar nerve was evaluated at the wrist using nerve conduction studies and ultrasonography...
October 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
Laure Spieser, Mathieu Servant, Thierry Hasbroucq, Borís Burle
Both in real life and experimental settings, increasing response speed typically leads to more error-prone actions. Processes underlying such a "speed-accuracy trade-off" (SAT) are usually assumed to be purely decisional: cautiousness would be determined only by the amount of sensory evidence required to select a response. The present data challenges this largely accepted view, by directly showing that motor processes are speeded up under time pressure. In a choice reaction time task where emphasis was put either on response speed or accuracy, motor processes were investigated through the analysis of muscular activity related to response execution...
October 18, 2016: Psychonomic Bulletin & Review
Diego Dal Ben, Anna Marchenkova, Ajiroghene Thomas, Catia Lambertucci, Andrea Spinaci, Gabriella Marucci, Andrea Nistri, Rosaria Volpini
Blocking membrane currents evoked by the activation of purinergic P2X3 receptors localized on nociceptive neurons represents a promising strategy for the development of agents useful for the treatment of chronic pain conditions. Among compounds endowed with such antagonistic action, 2',3'-O-(2,4,6-trinitrophenyl)-ATP (TNP-ATP) is an ATP analogue, whose inhibitory activity on P2X receptors has been previously reported. Based on the results of molecular modelling studies performed with homology models of the P2X3 receptor, novel adenosine nucleotide analogues bearing cycloalkyl or arylalkyl substituents replacing the trinitrophenyl moiety of TNP-ATP were designed and synthesized...
October 18, 2016: Purinergic Signalling
Jonathan Zelken, Jung-Ju Huang, Chih-Wei Wu, Yi-Ling Lin, Ming-Huei Cheng
The periareolar approach is limited by areolar diameter. Asian women typically have smaller areolae than Western women. Voluminous and form-stable silicone implants demand larger incisions. Zigzag transareolar approaches closely approximate the nipple and improve exposure, but scar appearance remains problematic, and there is a risk of ductal injury and capsular contracture. We prefer a zigzag incision that straddles the areolar border. Between 2013 and 2015, 11 augmentation mammoplasties (20 incisions) were performed through a transareolar-periareolar (TAPA) incision...
September 2016: Plastic and Reconstructive Surgery. Global Open
So Young Joo, Yoon Soo Cho, Sung-Rae Cho, Dohern Kym, Cheong Hoon Seo
PURPOSE: Pain Scrambler therapy is a patient-specific electrocutaneous nerve stimulation device. Burn pruritus is a common form of chronic and disabling neuropathic pain that is often difficult to treat effectively. Pruritus is mediated by histamines, which are effector molecules stored in mast cells and released locally during injury or inflammation. Burn pruritus may be accompanied by peripheral neuropathic pain, which may result from injury to sensory nerves that hampers conductance of neuronal messages along the large A and small C afferent fibers to the spinal cord...
October 15, 2016: Burns: Journal of the International Society for Burn Injuries
Felice N van Erning, Maryska L G Janssen-Heijnen, Johannes A Wegdam, Gerrit D Slooter, Jan H Wijsman, Art Vreugenhil, Tonneke A J M Beijers, Lonneke V van de Poll-Franse, Valery E P P Lemmens
INTRODUCTION: Among the elderly, the impairment of functional capacities due to neuropathy can have a significant impact. The aim of the present study was to investigate the course of neuropathic symptoms among elderly patients with stage III colon cancer treated with CAPOX (capecitabine, oxaliplatin), capecitabine monotherapy, or no adjuvant chemotherapy. MATERIALS AND METHODS: The Netherlands Cancer Registry was used to select patients with stage III colon cancer and aged ≥ 70 years...
September 17, 2016: Clinical Colorectal Cancer
Hongyu He, Lirong Jin, Minjie Ju, Guowei Tu, Zhe Luo
BACKGROUND: Acute transverse myelitis is uncommon and presumably results from an autoimmune process or a preceding infection. Most cases of bacterial myelitis are due to hematogenous dissemination from urinary or respiratory tract infections or contiguous spreading from a neighboring infected structure. A psoas abscess rarely spreads to higher levels of the spinal cord. No cases of acute cervical myelitis due to a psoas abscess have been previously reported. CASE PRESENTATION: A 34-year-old man was transferred to our hospital due to progressive muscle weakness, sensory deficits and severe hypotension...
October 18, 2016: BMC Infectious Diseases
DeMetris D Reed, Lee-Anne J Walter, Angela N Schmitz, Daniel E Guadián-García, Ty E Lawrence
Palatability attributes of beef striploin steaks mechanically enhanced with pork fat were evaluated. Striploins were collected from USDA Standard steer carcasses, longitudinally cut into halves (lateral or medial) and assigned randomly to pork fat injection (PFI) or non-injected control (CON). Loin halves assigned to PFI were enhanced with pork fat using a multi-needle injector. Steaks were analyzed via Warner-Bratzler shear force, trained and consumer sensory panels, and proximate analysis (cooked and uncooked)...
October 5, 2016: Meat Science
Matteo Bologna, Anna Latorre, Francesca Di Biasio, Antonella Conte, Daniele Belvisi, Nicola Modugno, Antonio Suppa, Alfredo Berardelli, Giovanni Fabbrini
BACKGROUND: By providing a stable and smooth L-dopa plasmatic level, L-dopa/carbidopa intestinal gel reproduces the physiological continuous dopaminergic receptor stimulation in patients with Parkinson disease (PD), and it therefore represents a suitable tool to investigate the role of the altered dopaminergic neurotransmission in the pathophysiology of motor and sensory abnormalities in this condition. METHODS: We studied 11 patients with advanced PD being treated with L-Dopa/carbidopa intestinal gel (LCIG) and 11 age-matched healthy subjects...
October 14, 2016: Clinical Neuropharmacology
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