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Quantitative sensory testing

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https://www.readbyqxmd.com/read/28938786/prediction-of-egg-freshness-during-storage-using-electronic-nose
#1
Samuel M Yimenu, J Y Kim, B S Kim
The aim of the present study was to investigate the potential of a fast gas chromatography (GC) e-nose for freshness discrimination and for prediction of storage time as well as sensory and internal quality changes during storage of hen eggs. All samples were obtained from the same egg production farm and stored at 20 °C for 20 d. Egg sampling was conducted every 0, 3, 6, 9, 12, 16, and 20 d. During each sampling time, 4 egg cartons (each containing 10 eggs) were randomly selected: one carton for Haugh units, one carton for sensory evaluation and 2 cartons for the e-nose experiment...
October 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28937248/theta-burst-stimulation-in-the-treatment-of-chronic-orofacial-pain-a-randomized-controlled-trial
#2
B Kohútová, J Fricová, M Klírová, T Novák, R Rokyta
Theta burst stimulation (TBS) is a modified form of high-frequency repetitive transcranial magnetic stimulation (rTMS) with promising effect in chronic pain. The aim of our double-blind, sham-controlled, parallel-group, randomized study was to assess an efficacy of intermittent TBS (iTBS) in the treatment of patients with chronic orofacial pain. Nineteen patients (twelve females) with chronic orofacial pain were prospectively included and randomly assigned to single session of an active (iTBS) or sham (intermediate TBS; imTBS) stimulation delivered to the primary motor cortex (M1) contralateral to painful side...
September 22, 2017: Physiological Research
https://www.readbyqxmd.com/read/28934779/what-are-the-predictors-of-altered-central-pain-modulation-in-chronic-musculoskeletal-pain-populations-a-systematic-review
#3
Jacqui Clark, Jo Nijs, Gillian Yeowell, Peter Charles Goodwin
BACKGROUND: Altered central pain modulation is the predominant pain mechanism in a proportion of chronic musculoskeletal pain disorders and is associated with poor outcomes. Although existing studies predict poor outcomes such as persistent pain and disability, to date there is little consensus on what factors specifically predict altered central pain modulation. OBJECTIVES: To review the existing literature on the predictive factors specifically for altered central pain modulation in musculoskeletal pain populations...
September 2017: Pain Physician
https://www.readbyqxmd.com/read/28929829/quantitative-sensory-testing-for-assessment-of-somatosensory-function-in-human-oral-mucosa-a-review
#4
Pin Zhou, Yaming Chen, Jinglu Zhang, Kelun Wang, Peter Svensson
OBJECTIVE: This narrative review provides an overview of the quantitative sensory testing (QST) to assess somatosensory function in human oral mucosa. MATERIAL AND METHODS: A literature search was conducted in the PubMed database to identify studies in vivo on human oral mucosa using QST methods. A list of 149 articles was obtained and screened. A total of 36 relevant articles remained and were read in full text. Manual search of the reference lists identified eight additional relevant studies...
September 20, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/28928571/dexmedetomidine-as-adjuvant-to-lower-doses-of-intrathecal-bupivacaine-for-lower-limb-orthopedic-surgeries
#5
Taznim Mohamed, Indu Susheela, Beena P Balakrishnan, Suvarna Kaniyil
BACKGROUND: Dexmedetomidine, an α2 adrenergic agonist, has been found to be a useful adjuvant to local anesthetics. It has been found to produce satisfactory block with lower doses of spinal bupivacaine. AIM: The aim of this study is to compare the difference in spinal block characteristics and hemodynamic effects of 7, 8, and 9 mg hyperbaric bupivacaine combined with 5 μg dexmedetomidine and to find out the optimum dose that would provide satisfactory block and hemodynamic stability for lower limb orthopedic surgeries...
July 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28928563/comparative-study-of-constant-dose-intrathecal-hypobaric-levobupivacaine-with-varying-baricities-in-lower-limb-surgeries
#6
K P Biji, M Sunil, K T Ramadas
BACKGROUND: Hypobaric spinal anesthesia is advantageous for unilateral lower extremity fractures as it obviates pain of lying on fractured limb for performing subarachnoid block. AIMS: This study compares block characteristics and complications of three different baricities of constant dose intrathecal hypobaric levobupivacaine to determine an optimum baricity. SETTINGS AND DESIGN: One-twenty American Society of Anesthesiologists Physical Status 1 and 2 patients aged 18-65 years undergoing unilateral lower limb surgeries were divided into three equal groups for this prospective cohort study...
July 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28926414/exploration-of-quantitative-sensory-testing-in-latent-trigger-points-and-referred-pain-areas
#7
Silvia Ambite-Quesada, José L Arías-Buría, Carol A Courtney, Lars Arendt-Nielsen, César Fernández-de-Las-Peñas
OBJECTIVE: To investigate somato-sensory nerve fibre function by applying different quantitative sensory testing including thermal, mechanical and vibration thresholds over latent trigger points (TrP) and in its associated referred pain area. METHODS: A total of 20 subjects with unilateral latent TrPs in the extensor carpi radialis brevis were included. Warmth detection threshold (WDT), cold detection threshold CDT) and heat/cold pain thresholds (HPT, CPT), mechanical detection (MDT) and pain (MPT) thresholds, vibration threshold (VT), and pressure pain thresholds (PPT) were blinded assessed over the TrP, in the referred pain area, and in the respective contra-lateral mirror areas...
September 15, 2017: Clinical Journal of Pain
https://www.readbyqxmd.com/read/28919806/how-stable-are-quantitative-sensory-testing-measurements-over-time-report-on-10-week-reliability-and-agreement-of-results-in-healthy-volunteers
#8
Helen Nothnagel, Christian Puta, Thomas Lehmann, Philipp Baumbach, Martha B Menard, Brunhild Gabriel, Holger H W Gabriel, Thomas Weiss, Frauke Musial
BACKGROUND: Quantitative sensory testing (QST) is a diagnostic tool for the assessment of the somatosensory system. To establish QST as an outcome measure for clinical trials, the question of how similar the measurements are over time is crucial. Therefore, long-term reliability and limits of agreement of the standardized QST protocol of the German Research Network on Neuropathic Pain were tested. METHODS: QST on the lower back and hand dorsum (dominant hand) were assessed twice in 22 healthy volunteers (10 males and 12 females; mean age: 46...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28916394/a-useful-strategy-based-on-chromatographic-data-combined-with-quality-by-design-approach-for-food-analysis-applications-the-case-study-of-furanic-derivatives-in-sugarcane-honey
#9
Pedro Silva, Catarina L Silva, Rosa Perestrelo, Fernando M Nunes, José S Câmara
Sugarcane honey (SCH) is one of the Madeira Island products par excellence and it is now popular worldwide. Its sui generis and peculiar sensory properties, explained by a variety of volatile compounds including furanic derivatives (FDs), arise mainly from manufacturing and storage conditions. A simple high-throughput approach based on semi-automatic microextraction by packed sorbent (MEPS) combined with ultra-high performance liquid chromatography (UHPLC) was developed and validated for identification and quantification of target FDs in sugarcane honey...
September 8, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28912959/research-protocol-for-a-complex-intervention-to-support-hearing-and-vision-function-to-improve-the-lives-of-people-with-dementia
#10
Iracema Leroi, Annie Pye, Christopher J Armitage, Anna Pavlina Charalambous, Fofi Constantinidou, Catherine Helmer, Ines Himmelsbach, Sarah Marié, Jahanara Miah, Suzanne Parsons, Jemma Regan, Chryssoula Thodi, Lucas Wolski, Abebaw Mengistu Yohannes, Piers Dawes
BACKGROUND: Hearing and vision impairments are among the most common and disabling comorbidities in people living with dementia. Intervening to improve sensory function could be a means by which the lives of people living with dementia may be improved. However, very few studies have tried to ameliorate outcomes in dementia by improving sensory function. This paper describes the multi-step development of a new intervention designed to support hearing and vision function in people living with dementia in their own homes...
2017: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/28894389/quantification-of-small-fiber-pathology-in-patients-with-sarcoidosis-and-chronic-pain-using-cornea-confocal-microscopy-and-skin-biopsies
#11
Linda Cj Oudejans, Marieke Niesters, Michael Brines, Albert Dahan, Monique van Velzen
Small fiber pathology with concomitant chronic neuropathic pain is a common complication of sarcoidosis. The gold standard of diagnosis of small fiber neuropathy (SFN) is the quantification of small nerve fibers in skin biopsies in combination with patient history and psychophysical tests; a new technique is the quantification of small nerve fibers in the cornea using cornea confocal microscopy (CCM). Here, we studied small fiber morphology in sarcoidosis patients with neuropathic pain using skin biopsies, CCM, and quantitative sensory testing (QST)...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28883634/association-of-the-resolvin-precursor-17-hdha-but-not-d-or-e-series-resolvins-with-heat-pain-sensitivity-and-osteoarthritis-pain-in-humans
#12
Ana M Valdes, Srinivasarao Ravipati, Cristina Menni, Abhishek Abhishek, Sarah Metrustry, Juliette Harris, Ayrun Nessa, Frances M K Williams, Tim D Spector, Michael Doherty, Victoria Chapman, David A Barrett
Resolvins are omega-3 fatty acid derived potent bioactive lipids that resolve inflammation and modulate transient receptor potential channels. Exogenous administration of the resolvin precursor 17-HDHA shows a strong analgesic effect in animal models of osteoarthritis and acute inflammatory pain, but has not been studied in humans. Our aim was to assess the role of 17-HDHA and resolvins in heat pain sensitivity and in osteoarthritis pain in humans. Resolvins D1, D2, D3, D5, E1 and 17-HDHA, were measured by liquid chromatography-mass spectrometry and tested for association with heat pain thresholds in 250 healthy volunteers who had undergone quantitative sensory testing...
September 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28881477/multimodal-quantitative-examination-of-nerve-function-in-colorectal-cancer-patients-prior-to-chemotherapy
#13
Tejaswi Kandula, Michelle A Farrar, Arun V Krishnan, Jenna Murray, Hannah C Timmins, David Goldstein, Cindy S-Y Lin, Matthew C Kiernan, Susanna B Park
INTRODUCTION: Given recent findings of subclinical sensory deficits in colorectal cancer patients prior to oxaliplatin treatment, the current study aimed to identify evidence of subclinical peripheral neuropathy on multimodal testing before chemotherapy commencement. METHODS: Clinical, functional and neurophysiological assessments were undertaken in 93 colorectal cancer patients prior to chemotherapy. RESULTS: There was no neurophysiological evidence of neuropathy, with 92/93 sural sensory values within normative reference values for age and no significant abnormalities detected in nerve conduction or nerve excitability studies...
September 7, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28879245/effects-of-high-dose-capsaicin-on-tmd-subjects-a-randomized-clinical-study
#14
B K Campbell, R B Fillingim, S Lee, R Brao, D D Price, J K Neubert
Temporomandibular joint disorder (TMD) is a complex musculoskeletal disorder that presents with pain, limited jaw opening, and abnormal noises in the temporomandibular joint. Despite the significant impact that TMD has in terms of suffering and financial burden, relatively few new treatments have emerged; therefore, development of novel treatments to treat TMD pain remains a high priority. The rationale of this study was to use a double-blind, vehicle-controlled clinical trial to evaluate the effects of a high-concentration (8%) capsaicin cream on TMD...
January 2017: JDR Clinical and Translational Research
https://www.readbyqxmd.com/read/28865379/quantitative-sensory-tests-qst-are-promising-tests-for-clinical-relevance-of-anti-nociceptive-effects-of-new-analgesic-treatments
#15
Satu K Jääskeläinen
No abstract text is available yet for this article.
August 30, 2017: Scandinavian Journal of Pain
https://www.readbyqxmd.com/read/28859684/sex-differences-in-thermal-detection-and-thermal-pain-threshold-and-the-thermal-grill-illusion-a-psychophysical-study-in-young-volunteers
#16
Beate Averbeck, Lena Seitz, Florian P Kolb, Dieter F Kutz
BACKGROUND: Sex-related differences in human thermal and pain sensitivity are the subject of controversial discussion. The goal of this study in a large number of subjects was to investigate sex differences in thermal and thermal pain perception and the thermal grill illusion (TGI) as a phenomenon reflecting crosstalk between the thermoreceptive and nociceptive systems. The thermal grill illusion is a sensation of strong, but not necessarily painful, heat often preceded by transient cold upon skin contact with spatially interlaced innocuous warm and cool stimuli...
September 1, 2017: Biology of Sex Differences
https://www.readbyqxmd.com/read/28859662/chronic-pain-in-gaucher-disease-skeletal-or-neuropathic-origin
#17
Grazia Devigili, Michele De Filippo, Giovanni Ciana, Andrea Dardis, Christian Lettieri, Sara Rinaldo, Daniela Macor, Alessandro Moro, Roberto Eleopra, Bruno Bembi
BACKGOUND: Pain is one of the most disabling symptoms of Gaucher disease. It is referred by the majority of Gaucher patients and often persists despite long-term enzyme replacement treatment. It has been mainly considered as nociceptive pain secondary to skeletal involvement but it is described even in the absence of bone disease without a clear explanation. In the last years an increasing number of reports have described the presence of neurological manifestation in Gaucher type 1 patients, including subclinical large fibre neuropathy...
August 31, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28858986/sensory-phenotype-and-risk-factors-for-painful-diabetic-neuropathy-a-cross-sectional-observational-study
#18
Jana Raputova, Iva Srotova, Eva Vlckova, Claudia Sommer, Nurcan Uceyler, Frank Birklein, Heike L Rittner, Cora Rebhorn, Blanka Adamova, Ivana Kovalova, Eva Kralickova Nekvapilova, Lucas Forer, Jana Belobradkova, Jindrich Olsovsky, Pavel Weber, Ladislav Dusek, Jiri Jarkovsky, Josef Bednarik
Different sensory profiles in diabetic distal symmetrical sensory-motor polyneuropathy (DSPN) may be associated with pain and the responsiveness to analgesia. We aimed to characterize sensory phenotypes of patients with painful and painless diabetic neuropathy and to assess demographic, clinical, metabolic, and electrophysiological parameters related to the presence of neuropathic pain in a large cohort of well-defined DSPN subjects.This observational cross-sectional multi-center cohort study (performed as part of the ncRNAPain EU consortium) of 232 subjects with non-painful (n=74) and painful (n=158) DSPN associated with diabetes mellitus of type 1 and 2 (median age 63 years, range 21-87 years; 92 women) comprised detailed history taking, laboratory tests, neurological examination, quantitative sensory testing, nerve conduction studies, and neuropathy severity scores...
August 3, 2017: Pain
https://www.readbyqxmd.com/read/28854251/facilitatory-and-inhibitory-pain-mechanisms-are-altered-in-patients-with-carpal-tunnel-syndrome
#19
Benjamin Soon, Bill Vicenzino, Annina B Schmid, Michel W Coppieters
Preliminary evidence from studies using quantitative sensory testing suggests the presence of central mechanisms in patients with carpal tunnel syndrome (CTS) as apparent by widespread hyperalgesia. Hallmarks of central mechanisms after nerve injuries include nociceptive facilitation and reduced endogenous pain inhibition. Methods to study nociceptive facilitation in CTS so far have been limited to quantitative sensory testing and the integrity of endogenous inhibition remains unexamined. The aim of this study was therefore to investigate changes in facilitatory and inhibitory processing in patients with CTS by studying hypersensitivity following experimentally induced pain (facilitatory mechanisms) and the efficacy of conditioned pain modulation (CPM, inhibitory mechanisms)...
2017: PloS One
https://www.readbyqxmd.com/read/28846038/a-case-controlled-investigation-of-tactile-reactivity-in-young-children-with-and-without-global-developmental-delay
#20
Chantel C Barney, Raymond Tervo, George L Wilcox, Frank J Symons
Assessing tactile function among children with intellectual, motor, and communication impairments remains a clinical challenge. A case control design was used to test whether children with global developmental delays (GDD; n = 20) would be more/less reactive to a modified quantitative sensory test (mQST) compared to controls (n = 20). Reactivity was indexed by blinded behavioral coding across vocal, facial, and gross motor responses during the mQST. On average the children with GDD were significantly more reactive than controls to most tactile sensory modalities including light touch (p = ...
September 2017: American Journal on Intellectual and Developmental Disabilities
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