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Takamichi Kanbayashi, Takaharu Yamauchi, Yosuke Miyaji, Masahiro Sonoo
INTRODUCTION: Recent studies have shown that stimulation occurs at the anode of stimulating electrodes instead of anodal block. This phenomenon may become a pitfall in F-wave examinations. METHODS: Subjects were 10 healthy volunteers. Their ulnar nerve was stimulated at the wrist with the cathode placed distally. Antidromic impulses were evaluated using the mixed nerve action potential (MNAP) at the elbow. RESULTS: Anodal stimulation occurred for both sensory and motor fibers at 22 mm proximal to the anode on average, which may theoretically shorten the F-wave latency by about 0...
October 26, 2016: Muscle & Nerve
Eduardo Dellacassa, Oriol Trenchs, Laura Fariña, Florencia Debernardis, Gabriel Perez, Eduardo Boido, Francisco Carrau
A pineapple vinification process was conducted through inoculated and spontaneous fermentation to develop a process suitable for a quality beverage during two successive vintages in Huambo, Angola. Wines obtained with the conventional Saccharomyces cerevisiae strain, were analysed by gas chromatography, and a total of 61 volatile constituents were detected in the volatile fraction and 18 as glycosidically bound aroma compounds. Concentration levels of carbonyl and sulphur compounds were in agreement with the limited information reported about pineapple fruits of other regions...
October 13, 2016: International Journal of Food Microbiology
G F Gebhart, Klaus Bielefeldt
Pain involving thoracic, abdominal, or pelvic organs is a common cause for physician consultations, including one-third of chronic pain patients who report that visceral organs contribute to their suffering. Chronic visceral pain conditions are typically difficult to manage effectively, largely because visceral sensory mechanisms and factors that contribute to the pathogenesis of visceral pain are poorly understood. Mechanistic understanding is particularly problematic in "functional" visceral diseases where there is no apparent pathology and pain typically is the principal complaint...
September 15, 2016: Comprehensive Physiology
Kaisy Pereira Martins, Tatiana Ferreira da Costa, Thayris Mariano de Medeiros, Maria das Graças Melo Fernandes, Inácia Sátiro Xavier de França, Kátia Nêyla de Freitas Macêdo Costa
This study aimed at evaluating the internal structure of Family Health Units in relation to the access of people with physical and/or sensory disabilities. It is a descriptive, exploratory, population-based research, held in Family Health Units of the municipality of João Pessoa, Paraíba, Brazil. For the collection of data, a checklist based on Technical Standard 9050 was used. For the analysis, the descriptive and exploratory analysis of the data and the Chi-square test were applied. As a result, of the 90 buildings evaluated, only 47...
October 2016: Ciência & Saúde Coletiva
Nathalie Van Humbeeck, Tom Putzeys, Johan Wagemans
Two stimuli alternately presented at different locations can evoke a percept of a stimulus continuously moving between the two locations. The neural mechanism underlying this apparent motion (AM) is thought to be increased activation of primary visual cortex (V1) neurons tuned to locations along the AM path, although evidence remains inconclusive. AM masking, which refers to the reduced detectability of stimuli along the AM path, has been taken as evidence for AM-related V1 activation. AM-induced neural responses are thought to interfere with responses to physical stimuli along the path and as such impair the perception of these stimuli...
October 2016: PLoS Computational Biology
Sheila Cardeña-Núñez, Luis Óscar Sánchez-Guardado, Rubén Corral-San-Miguel, Lucía Rodríguez-Gallardo, Faustino Marín, Luis Puelles, Pilar Aroca, Matías Hidalgo-Sánchez
The vertebrate inner ear is a complex three-dimensional sensorial structure with auditory and vestibular functions. The molecular patterning of the developing otic epithelium creates various positional identities, consequently leading to the stereotyped specification of each neurosensory and non-sensory element of the membranous labyrinth. The Iroquois (Iro/Irx) genes, clustered in two groups (A: Irx1, Irx2, and Irx4; and B: Irx3, Irx5, and Irx6), encode for transcriptional factors involved directly in numerous patterning processes of embryonic tissues in many phyla...
October 25, 2016: Brain Structure & Function
Zhale Rajavi, Ali Lashgari, Hamideh Sabbaghi, Narges Behradfar, Mehdi Yaseri
PURPOSE: To determine the incidence and related risk factors of reoperation among patients with infantile exotropia who were operated on at Imam Hossein Medical Center, Tehran, Iran, from 2001 to 2015. METHODS: In this study, 82 children (55 girls and 27 boys) with infantile exotropia were divided into two groups 3 months after their first operation: children with horizontal deviation of 10 prism diopters (PD) or less (n = 64; success group) and those with horizontal deviation greater than 10 PD (n = 18; failure group)...
October 25, 2016: Journal of Pediatric Ophthalmology and Strabismus
Simon A Filson, Danielle Yarhi, Yitzhak Ramon
: The authors present 25 cases and an in-depth 4-minute video of fully awake aesthetic breast reduction, which was made possible by thoracic epidural anesthesia. There are obvious and important advantages to this technique. Not only does this allow for intraoperative patient cooperation (i.e., patient self-positioning and opinion for comparison of breasts), meaning a shorter and more efficient intraoperative time, there also is a reduction in postoperative pain, complications, recovery, and discharge times...
November 2016: Plastic and Reconstructive Surgery
Mohamed D Hashem, Aparna Nallagangula, Swaroopa Nalamalapu, Krishidhar Nunna, Utkarsh Nausran, Karen A Robinson, Victor D Dinglas, Dale M Needham, Michelle N Eakin
BACKGROUND: There is growing interest in patient outcomes following critical illness, with an increasing number and different types of studies conducted, and a need for synthesis of existing findings to help inform the field. For this purpose we conducted a systematic review of qualitative studies evaluating patient outcomes after hospital discharge for survivors of critical illness. METHODS: We searched the PubMed, EMBASE, CINAHL, PsycINFO, and CENTRAL databases from inception to June 2015...
October 26, 2016: Critical Care: the Official Journal of the Critical Care Forum
Hermes A S Kamimura, Shutao Wang, Hong Chen, Qi Wang, Christian Aurup, Camilo Acosta, Antonio A O Carneiro, Elisa E Konofagou
PURPOSE: Ultrasound neuromodulation is a promising noninvasive technique for controlling neural activity. Previous small animal studies suffered from low targeting specificity because of the low ultrasound frequencies (<690 kHz) used. In this study, the authors demonstrated the capability of focused ultrasound (FUS) neuromodulation in the megahertz-range to achieve superior targeting specificity in the murine brain as well as demonstrate modulation of both motor and sensory responses...
October 2016: Medical Physics
Eunjeong Park, Sunghoon I Lee, Hyo Suk Nam, Jordan H Garst, Alex Huang, Andrew Campion, Monica Arnell, Nima Ghalehsariand, Sangsoo Park, Hyuk-Jae Chang, Daniel C Lu, Majid Sarrafzadeh
BACKGROUND: Alcohol ingestion influences sensory-motor function and the overall well-being of individuals. Detecting alcohol-induced impairments in gait in daily life necessitates a continuous and unobtrusive gait monitoring system. OBJECTIVES: This paper introduces the development and use of a non-intrusive monitoring system to detect changes in gait induced by alcohol intoxication. METHODS: The proposed system employed a pair of sensorized smart shoes that are equipped with pressure sensors on the insole...
October 26, 2016: Methods of Information in Medicine
Roberta Schellino, Sara Trova, Irene Cimino, Alice Farinetti, Bart C Jongbloets, R Jeroen Pasterkamp, Giancarlo Panzica, Paolo Giacobini, Silvia De Marchis, Paolo Peretto
Opposite-sex attraction in most mammals depends on the fine-tuned integration of pheromonal stimuli with gonadal hormones in the brain circuits underlying sexual behaviour. Neural activity in these circuits is regulated by sensory processing in the accessory olfactory bulb (AOB), the first central station of the vomeronasal system. Recent evidence indicates adult neurogenesis in the AOB is involved in sex behaviour; however, the mechanisms underlying this function are unknown. By using Semaphorin 7A knockout (Sema7A ko) mice, which show a reduced number of gonadotropin-releasing-hormone neurons, small testicles and subfertility, and wild-type males castrated during adulthood, we demonstrate that the level of circulating testosterone regulates the sex-specific control of AOB neurogenesis and the vomeronasal system activation, which influences opposite-sex cue preference/attraction in mice...
October 26, 2016: Scientific Reports
T Giesen, L Neukom, R Fakin, V Beckamm-Fries, M Calcagni
Fifteen consecutive patients with severely comminuted Rolando fractures were treated by closed reduction and fixation with a modified Suzuki frame without rubber bands, followed by immediate mobilization. All the fractures healed within 5 weeks. At 3 months, no rotational deformity was observed. The Kapandji score was equal that of the contralateral thumb in eight cases. No residual pain was recorded. Grip strength was 78% and pinch strength was 78% of the contralateral hand. One patient needed the frame tension modified...
October 2016: Hand Surgery and Rehabilitation
Christopher J Berg, Jonathan D Kaunitz
The ability of humans to sense chemical signals in ingested substances is implicit in the ability to detect the five basic tastes; sweet, sour, bitter, salty, and umami. Of these, sweet, bitter, and umami tastes are detected by lingual G-protein-coupled receptors (GPCRs). Recently, these receptors were also localized to the gut mucosa. In this review, we will emphasize recent advances in the understanding of the mechanisms and consequences of foregut luminal chemosensing, with special emphasis on cell surface GPCRs such as the sweet and proteinaceous taste receptors (TASRs), short- and long-chain fatty acid (FA) receptors, and bile acid receptors...
2016: F1000Research
Zhonghui Guan, Judith Hellman, Mark Schumacher
Tissue injury, whether by trauma, surgical intervention, metabolic dysfunction, ischemia, or infection, evokes a complex cellular response (inflammation) that is associated with painful hyperalgesic states. Although in the acute stages it is necessary for protective reflexes and wound healing, inflammation may persist well beyond the need for tissue repair or survival. Prolonged inflammation may well represent the greatest challenge mammalian organisms face, as it can lead to chronic painful conditions, organ dysfunction, morbidity, and death...
2016: F1000Research
Simin Liang, Jie Li, Xin Gou, Daihui Chen
BACKGROUND: Bladder disorders associated with interstitial cystitis are frequently characterized by increased contractility and pain. The purposes of this study were to examine (1) the effects of blocking mammalian target of rapamycin (mTOR) on the exaggerated bladder activity and pain evoked by cystitis and (2) the underlying mechanisms responsible for the role of mTOR in regulating cystic sensory activity. RESULTS: The expression of p-mTOR, mTOR-mediated phosphorylation of p70 ribosomal S6 protein kinase 1 (p-S6K1), 4 E-binding protein 4 (p-4 E-BP1), as well as phosphatidylinositide 3-kinase (p-PI3K) pathway were amplified in cyclophosphamide rats as compared with control rats...
2016: Molecular Pain
En-Qi Guo, Qing-Ping Xie
Management of defects on the hand and foot with exposed tendons remains a major challenge for plastic surgeons. Here, we present a case of hand reconstruction with a totally laparoscopic peritoneal flap. The anterior rectus sheath was preserved in situ. The peritoneal free flap supplied by peritoneal branches of the deep inferior epigastric artery was retrieved by laparoscopy to cover the soft tissue defect of the hand. The defect of the dorsal hand was 17 cm ×12 cm. The peritoneal flap measuring 22 cm × 15 cm survived completely without any complications...
October 1, 2016: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
Tal Hoffmann, Katrin Kistner, Richard W Carr, Mohammed A Nassar, Peter W Reeh, Christian Weidner
The upregulation of the tetrodotoxin-resistant voltage-gated sodium channel NaV1.9 has previously been associated with inflammatory hyperalgesia. Na1.9 knockout (KO) mice, however, did not seem insensitive in conventional tests of acute nociception. Using electrophysiological, neurochemical, and behavioral techniques, we now show NaV1.9-null mice exhibit impaired mechanical and thermal sensory capacities and reduced electrical excitability of nociceptors. In single-fiber recordings from isolated skin, the electrical threshold of NaV1...
September 15, 2016: Pain
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
Eric J Warrant
As animals move through their environments they are subjected to an endless barrage of sensory signals. Of these, some will be of utmost importance, such as the tell-tale aroma of a potential mate, the distinctive appearance of a vital food source or the unmistakable sound of an approaching predator. Others will be less important. Indeed some will not be important at all. There are, for instance, wide realms of the sensory world that remain entirely undetected, simply because an animal lacks the physiological capacity to detect and analyse the signals that characterise this realm...
October 24, 2016: Current Biology: CB
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