keyword
MENU ▼
Read by QxMD icon Read
search

Reflexes

keyword
https://www.readbyqxmd.com/read/27931775/rhythmic-wrist-movements-facilitate-the-soleus-h-reflex-and-non-voluntary-air-stepping-in-humans
#1
Irina A Solopova, Victor A Selionov, Egor O Blinov, Dmitri S Zhvansky, Yury P Ivanenko
Neural coupling between the upper and lower limbs during human walking is supported by modulation of cross-limb reflexes and the presence of rhythmic activity in the proximal arm muscles. Nevertheless, the involvement of distal arm muscles in cyclic movements and sensorimotor neuromodulation is also suggested given their step-synchronized activation in many locomotor-related tasks (e.g., swimming, skiing, climbing, cycling, crawling, etc.). Here we investigated the effect of rhythmic wrist movements, separately and in conjunction with arm swinging, on the characteristics of non-voluntary cyclic leg movements evoked by muscle vibration in a gravity neutral position and on the soleus H-reflex of the stationary legs...
December 5, 2016: Neuroscience Letters
https://www.readbyqxmd.com/read/27931323/lidocaine-hydrochloride-compared-with-ms222-for-the-euthanasia-of-zebrafish-danio-rerio
#2
Chereen Collymore, E Kate Banks, Patricia V Turner
Despite several shortcomings, MS222 is the most commonly used chemical agent for euthanasia of zebrafish. Although lidocaine hydrochloride has some advantages over MS222, its effectiveness as a euthanasia agent for zebrafish is unknown. Larvae at 9 to 16 d postfertilization were exposed to 250 mg/L MS222 or 400, 500, 600, 700, 800, 900, or 1000 mg/L lidocaine and observed for cessation of heartbeat. Adult zebrafish were exposed to 250 mg/L MS222 or 400, 500, or 600 mg/L lidocaine; times to loss of righting reflex, cessation of opercular movement, and complete recovery; body length; aversive behavior; and gross and microscopic evidence of acute toxicity were evaluated...
November 2016: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/27931319/subcutaneous-compared-with-intraperitoneal-ketaminexylazine-for-anesthesia-of-mice
#3
Maya Levin-Arama, Lital Abraham, Trevor Waner, Alon Harmelin, David M Steinberg, Tal Lahav, Mickey Harlev
Mice are commonly anesthetized intraperitoneally with a ketamine-xylazine (KX) solution. Although this route of administration allows rapid uptake of the injected drugs, its disadvantages and potential risks include pain, peritoneal irritation, and perforation of an abdominal organ; some of the risks depend on the operator's experience. We compared the efficacy of intraperitoneal and subcutaneous administration of KX in HSD:ICR, BALB/cOlaHsd, and C57BL/6JOlaHsd mice in terms of time to onset and duration of surgical anesthesia, procedure safety, and mortality...
November 2016: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/27930861/functional-mri-in-seven-borderline-cochlear-implant-candidates-a-preliminary-research-study
#4
F Wagner, S Weder, M D Caversaccio, A Federspiel, R Wiest, P Senn
The indications for cochlear implants (CIs) are constantly expanding, as are the numbers of patients who are not ideal or classical CI candidates. For these patients, a careful decision-making process is needed to minimize the risk of poor outcomes. Preoperatively, it may be unclear whether they will benefit from an implantation. As conventionally performed hearing tests (i.e. subjective and electrophysiological examinations, stapedial reflex testing) have limitations, further objective and effective methods for assessment of the central auditory pathway (CAP) are required [1-3]...
December 8, 2016: Clinical Otolaryngology
https://www.readbyqxmd.com/read/27930392/pain-catastrophizing-is-not-associated-with-spinal-nociceptive-processing-in-people-with-chronic-widespread-pain
#5
David A Rice, Rosalind S Parker, Gwyn N Lewis, Michal T Kluger, Peter J McNair
OBJECTIVES: Pain catastrophizing has been associated with higher pain intensity, increased risk of developing chronic pain and poorer outcomes after pain treatments. Despite this, the mechanisms by which pain catastrophizing influences pain remain poorly understood. It has been hypothesised that pain catastrophizing may impair descending inhibition of spinal level nociception. The aims of this study were to compare spinal nociceptive processing in people with chronic widespread pain and pain free controls and examine potential relationships between measures of pain catastrophizing and spinal nociception...
December 7, 2016: Clinical Journal of Pain
https://www.readbyqxmd.com/read/27930371/effect-of-low-concentration-nonmydriatic-selective-alpha-adrenergic-agonist-eyedrops-on-upper-eyelid-position
#6
Taís B Mendonça, Atauíne P Lummertz, Francisco J L Bocaccio, Fernando Procianoy
BACKGROUND: Ptosis after botulinum toxin injection is a disturbing complication. Decongestant and antiglaucoma eyedrops are frequently prescribed for temporary improvement of eyelid ptosis. Although frequently cited on informal communications, the effect of these drugs on eyelid position has never been compared in a formal study. OBJECTIVE: To measure the effect of low-concentration, nonmydriatic selective alpha agonist eyedrops on upper eyelid position. METHODS AND MATERIALS: This nonrandomized clinical trial enrolled 20 healthy subjects aged 18 to 50 years...
December 2, 2016: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/27929803/an-autopsy-verified-case-of-ftld-tdp-type-a-with-upper-motor-neuron-predominant-motor-neuron-disease-mimicking-mm2-thalamic-type-sporadic-creutzfeldt-jakob-disease
#7
Yuichi Hayashi, Yasushi Iwasaki, Akira Takekoshi, Nobuaki Yoshikura, Takahiko Asano, Maya Mimuro, Akio Kimura, Katsuya Satoh, Tetsuyuki Kitamoto, Mari Yoshida, Takashi Inuzuka
Here we report an autopsy-verified case of frontotemporal lobar degeneration (FTLD)-transactivation responsive region (TAR) DNA binding protein (TDP) type A with upper motor neuron-predominant motor neuron disease mimicking MM2-thalamic-type sporadic Creutzfeldt-Jakob disease (sCJD). A 69-year-old woman presented with an 11-month history of progressive dementia, irritability, insomnia, and gait disturbance without a family history of dementia or prion disease. Neurological examination revealed severe dementia, frontal signs, and exaggerated bilateral tendon reflexes...
November 2016: Prion
https://www.readbyqxmd.com/read/27928968/rationale-for-assessing-safety-and-efficacy-of-drug-candidates-alone-and-in-combination-with-medical-devices-the-case-study-of-spinalontm
#8
Pierre A Guertin
The aim of this review is to describe the rationale and main underlying reasons for undertaking, during clinical development, the study of drug candidates used separately and/or in combination with other technologies. To ease comprehension, reference will be made to the case of SpinalonTM, a new fixed-dose combination (FDC) product composed of levodopa/carbidopa/buspirone. This drug is capable of triggering, within minutes after a single administration orally, 45 minute- episodes of basic involuntary 'reflex' walking in paraplegic animals...
December 7, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27928634/pressurized-wideband-acoustic-stapedial-reflex-thresholds-normal-development-and-relationships-to-auditory-function-in-infants
#9
Lisa L Hunter, Douglas H Keefe, M Patrick Feeney, Denis F Fitzpatrick
This study analyzed effects of pressurization on wideband acoustic stapedial-muscle reflex (ASR) tests in infants cared for in normal newborn (NN) and neonatal intensive care units (NICU). Effects of hearing-screening outcomes on ASR threshold measurements were also evaluated, and a subsequent longitudinal study established normative threshold ranges over the first year after birth. An initial experiment compared thresholds in newborns measured at ambient pressure in the ear canal and at the tympanometric peak pressure...
December 7, 2016: Journal of the Association for Research in Otolaryngology: JARO
https://www.readbyqxmd.com/read/27927738/altered-acoustic-startle-reflex-pre-pulse-inhibition-and-peripheral-brain-derived-neurotrophic-factor-in-morphine-self-administered-rats
#10
Bong Hyo Lee, Thomas Y Park, Erica Lin, He Li, Chae Ha Yang, Kwang H Choi
BACKGROUND: Previous studies suggested that opiate withdrawal may increase anxiety and disrupt brain-derived neurotrophic factor (BDNF) function, but the effects of intravenous morphine self-administration (MSA) on these measures remain unclear. METHODS: Adult male Sprague-Dawley rats were implanted with a catheter in the jugular vein. After 1 week of recovery, the animals were allowed to self-administer either intravenous morphine (0.5 mg/kg per infusion, 4 hr/day) or saline (SSA) in the operant conditioning chambers...
December 7, 2016: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27926585/fluctuating-vestibulo-ocular-reflex-in-m%C3%A3-ni%C3%A3-re-s-disease
#11
Dario A Yacovino, Timothy C Hain, Maria Musazzi
OBJECTIVES: To describe the fluctuating high velocity vestibular ocular-reflex (VOR) during the Ménière's attacks and correlate those features with pathophysiology. PATIENTS: A patient with unilateral Ménière's disease (MD) was evaluated closely during and after acute vertigo episodes. MAIN OUTCOME MEASURES: The spontaneous nystagmus and the dynamic VOR changes were measured by the video head impulse test (VHIT) at different stages of the vertigo crisis and during the quiescent phase of the condition...
December 6, 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27925241/vertebral-subluxation-repair-in-a-pet-goat
#12
Sara Nannarone, Enrico Bellezza, Yves P Moens, Paula Larenza Menzies
OBJECTIVES: To describe the perioperative management, including surgery, anesthesia, metabolic derangements, and physiotherapy, in a goat referred for paraparesis secondary to a road traffic accident. STUDY DESIGN: Case report. ANIMALS: 2-year-old mixed breed dwarf 44 kg female pet goat. METHODS: Clinical examination showed symptoms of early compensatory stages of shock, paraparesis with hyperextension of the thoracic limbs, pain on palpation of the thoracolumbar spine, increased patellar reflexes of both pelvic limbs without superficial sensitivity, but preserved deep pain sensation...
December 7, 2016: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/27924617/cxcl12-sdf-1-dependent-retinal-migration-of-endogenous-bone-marrow-derived-stem-cells-improves-visual-function-after-pharmacologically-induced-retinal-degeneration
#13
Volker Enzmann, Stéphanie Lecaudé, Anna Kruschinski, Axel Vater
Mobilized bone marrow-derived stem cells (BMSC) have been discussed as an alternative strategy for endogenous repair. Thereby, different approaches for BMSC mobilization have been pursued. Herein, the role of a newly discovered oligonucleotide for retinal homing and regeneration capability of BMSCs was investigated in the sodium iodate (NaIO3) model of retinal degeneration. Mobilization was achieved in GFP-chimera with NOX-A12, a CXC-motif chemokine ligand 12 (CXCL12)/stromal cell-derived factor 1 (SDF-1)-neutralizing L-aptamer...
December 6, 2016: Stem Cell Reviews
https://www.readbyqxmd.com/read/27923785/genetic-determination-of-the-vascular-reactions-in-humans-in-response-to-the-diving-reflex
#14
Tatiana I Baranova, Dmitrii N Berlov, Oleg S Glotov, Ekaterina A Korf, Alexey D Minigalin, Alla V Mitrofanova, Ildus I Ahmetov, Andrey S Glotov
The purpose of this study was to investigate the genetic mechanisms of the defense vascular reactions in response to the diving reflex in humans with polymorphisms in the genes ADBR2, ACE, AGTR1, BDKRB2, and REN. We hypothesized that protective vascular reactions, in response to the diving reflex, are genetically determined and are distinguished in humans with gene polymorphisms of the renin-angiotensin and kinin-bradykinin system. A total of 80 subjects (19±1.4 years) participated in the study. The intensity of the vascular response was estimated using photopletismogram...
December 6, 2016: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/27923188/electrophysiology-in-fisher-syndrome
#15
REVIEW
Satoshi Kuwabara, Yukari Sekiguchi, Sonoko Misawa
Fisher syndrome (FS), a variant of Guillain-Barré syndrome (GBS), is characterized by the clinical triad of ophthalmoplegia, ataxia, and areflexia. The lesion sites for these unique clinical features include the oculomotor nerves and group 1a neurons in the dorsal root ganglion, and the presence of FS is determined by the expression of ganglioside GQ1b in the human nervous system. Neurophysiological findings suggest that ataxia and areflexia are due to an impaired proprioceptive afferent system. Typically, the soleus H-reflex is absent and a body-sway analysis using posturography shows a 1-Hz peak, which indicates proprioception dysfunction...
November 20, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27919775/behavioral-inhibition-and-behavioral-activation-are-related-to-habituation-of-nociceptive-flexion-reflex-but-not-pain-ratings
#16
P Maxwell Slepian, Christopher R France, Jamie L Rhudy, Lina K Himawan, Yvette M Güereca, Bethany L Kuhn, Shreela Palit
: Habituation (i.e., decreases in responding) and sensitization (i.e., increases in responding) following prolonged or repeated exposures to a fixed stimulus, have been identified as important in adaptation to repeated or prolonged noxious stimulation. Determinants of habituation or sensitization are poorly understood, and experimental investigation of habituation of pain ratings have generally relied on pain reports and statistical techniques that average responses across a group of participants...
December 2, 2016: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/27919774/understanding-facial-expressions-of-pain-in-patients-with-depression
#17
Stefan Lautenbacher, Karl-Juergen Bär, Patricia Eisold, Miriam Kunz
: Although depression is associated with more clinical pain complaints, psychophysical data sometimes point to hypoalgesic alterations. Studying the more reflex-like facial expression of pain in patients with depression may offer a new perspective. Facial and psychophysical responses to non-painful and painful heat stimuli were studied in 23 patients with major depressive disorder (MDD) and 23 matched controls. As psychophysical data, pain thresholds, tolerance thresholds and self-report were assessed...
December 2, 2016: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/27919275/rayyan-a-web-and-mobile-app-for-systematic-reviews
#18
Mourad Ouzzani, Hossam Hammady, Zbys Fedorowicz, Ahmed Elmagarmid
BACKGROUND: Synthesis of multiple randomized controlled trials (RCTs) in a systematic review can summarize the effects of individual outcomes and provide numerical answers about the effectiveness of interventions. Filtering of searches is time consuming, and no single method fulfills the principal requirements of speed with accuracy. Automation of systematic reviews is driven by a necessity to expedite the availability of current best evidence for policy and clinical decision-making. We developed Rayyan ( http://rayyan...
December 5, 2016: Systematic Reviews
https://www.readbyqxmd.com/read/27919222/capsaicin-8-patch-repeat-treatment-plus-standard-of-care-soc-versus-soc-alone-in-painful-diabetic-peripheral-neuropathy-a-randomised-52-week-open-label-safety-study
#19
Aaron I Vinik, Serge Perrot, Etta J Vinik, Ladislav Pazdera, Hélène Jacobs, Malcolm Stoker, Stephen K Long, Robert J Snijder, Marjolijne van der Stoep, Enrique Ortega, Nathaniel Katz
BACKGROUND: This 52-week study evaluated the long-term safety and tolerability of capsaicin 8% w/w (179 mg) patch repeat treatment plus standard of care (SOC) versus SOC alone in painful diabetic peripheral neuropathy (PDPN). METHODS: Phase 3, multinational, open-label, randomised, controlled, 52-week safety study, conducted in Europe. Patients were randomised to capsaicin 8% patch repeat treatment (30 or 60 min; 1-7 treatments with ≥ 8-week intervals) to painful areas of the feet plus SOC, or SOC alone...
December 6, 2016: BMC Neurology
https://www.readbyqxmd.com/read/27918171/the-complexities-of-power-in-feminist-multicultural-psychotherapy-supervision
#20
Alexis V Arczynski, Susan L Morrow
The goal of the present study was to understand how current feminist multicultural supervisors understand and implement their feminist multicultural principles into clinical supervision. We addressed this aim by answering the following research question: How do self-identified feminist multicultural psychotherapy supervisors conceptualize and practice feminist supervision that is explicitly multicultural? The perspectives of 14 participant supervisors were obtained by using semistructured initial interviews, follow-up interviews, and feedback interviews and were investigated via a feminist constructivist grounded theory design and analysis...
December 5, 2016: Journal of Counseling Psychology
keyword
keyword
72439
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"