keyword
MENU ▼
Read by QxMD icon Read
search

High frequency stimulation

keyword
https://www.readbyqxmd.com/read/29239776/differential-release-of-dopamine-in-the-nucleus-accumbens-evoked-by-low-versus-high-frequency-medial-prefrontal-cortex-stimulation
#1
Daniel F Hill, Kate L Parent, Christopher W Atcherley, Stephen L Cowen, Michael L Heien
The medial prefrontal cortex (mPFC) coordinates goal-directed behaviors, which may be mediated through mPFC regulation of dopamine release in the nucleus accumbens (NAc). Furthermore, frequency-specific oscillatory activity between the frontal cortex and downstream structures may facilitate inter-region communication. Although high-frequency (e.g., 60 Hz) mPFC stimulation is known to increase basal dopamine levels in the NAc, little is known about how phasic dopamine release is affected by mPFC stimulation...
November 15, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/29237276/differential-effects-of-left-and-right-prefrontal-high-frequency-rtms-on-resting-state-fmri-in-healthy-individuals
#2
Renee S Schluter, Jochem M Jansen, Ruth J van Holst, Wim van den Brink, Anna E Goudriaan
High frequency repetitive transcranial magnetic stimulation (HF-rTMS) has gained great interest in multiple clinical and research fields and is believed to accomplish its effect by influencing neuronal networks. The dlPFC is frequently chosen as the cortical target for HF-rTMS. However very little is known about the differential effect of HF-rTMS over the left and right dlPFC on intrinsic functional connectivity networks in patients or in healthy individuals. The current study assessed the differential effects of left or right HF-rTMS (corrected for sham) on intrinsic Independent Component Analysis (ICA) defined functional connectivity networks in a sample of 45 healthy individuals...
December 14, 2017: Brain Connectivity
https://www.readbyqxmd.com/read/29236966/neuronal-inhibition-and-synaptic-plasticity-of-basal-ganglia-neurons-in-parkinson-s-disease
#3
Luka Milosevic, Suneil K Kalia, Mojgan Hodaie, Andres M Lozano, Alfonso Fasano, Milos R Popovic, William D Hutchison
Deep brain stimulation of the subthalamic nucleus is an effective treatment for Parkinson's disease symptoms. The therapeutic benefits of deep brain stimulation are frequency-dependent, but the underlying physiological mechanisms remain unclear. To advance deep brain stimulation therapy an understanding of fundamental mechanisms is critical. The objectives of this study were to (i) compare the frequency-dependent effects on cell firing in subthalamic nucleus and substantia nigra pars reticulata; (ii) quantify frequency-dependent effects on short-term plasticity in substantia nigra pars reticulata; and (iii) investigate effects of continuous long-train high frequency stimulation (comparable to conventional deep brain stimulation) on synaptic plasticity...
December 11, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29235992/avoiding-neuromuscular-stimulation-in-liver-irreversible-electroporation-using-radiofrequency-electric-fields
#4
Quim Castellví, Borja Mercadal, Xavier Moll, Dolors Fondevila, Anna Andaluz, Antoni Ivorra
Electroporation based treatments typically consist in applying high voltage dc pulses. As an undesired side effect, these dc pulses cause electrical stimulation of excitable tissues such as motor nerves. In the present in vivo study, it was explored the use of bursts of sinusoidal voltage in the frequency range from 50 kHz to 2 MHz to induce irreversible electroporation (IRE) whilst avoiding neuromuscular stimulation. Series of 100 dc pulses or sinusoidal bursts, both with an individual duration of 100 µs, were delivered to rabbit liver through thin needles in a monopolar electrode configuration and thoracic movements were recorded with an accelerometer...
December 13, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29234703/lean-and-obese-zucker-rat-extensor-digitorum-longus-muscle-high-frequency-electrical-stimulation-hfes-data-regulation-of-p70s6kinase-associated-proteins
#5
Kevin M Rice, Anjaiah Katta, Nandini D P K Manne, Ravikumar Arvapalli, Gautam K Ginjupalli, Miaozong Wu, Shinichi Asano, Eric R Blough
Anaerobic exercise has been advocated as a prescribed treatment for the management of diabetes: however, alterations in exercise-induced signaling remain largely unexplored in the diabetic muscle. Here, we compare the basal and the in situ contraction-induced phosphorylation of the AKT, GSK3beta, mTor, p70s6K, Pten, and Shp2 in the lean and obese (fa/fa) Zucker rat Extensor Digitorum Longus (EDL) muscle following a single bout of contractile stimuli. This article represents data associated with prior publications from our lab (Katta et al...
February 2018: Data in Brief
https://www.readbyqxmd.com/read/29234702/high-frequency-electrical-stimulation-hfes-data-lean-and-obese-zucker-rat-tibialis-anterior-muscle-regulation-of-glycogen-synthase-kinase-3-beta-gsk3b-associated-proteins
#6
Gautam K Ginjupalli, Kevin M Rice, Anjaiah Katta, Nandini D P K Manne, Ravikumar Arvapalli, Miaozong Wu, Shinichi Asano, Eric R Blough
Anaerobic exercise has been advocated as a prescribed treatment for the management of diabetes: however, alterations in exercise-induced signaling remain largely unexplored in the diabetic muscle. Here, we compare the basal and the in situ contraction-induced phosphorylation of the AMPK, GSK3beta, and Shp2 in the lean and obese (fa/fa) Zucker rat tibialis anterior (TA) muscle following a single bout of contractile stimuli. This article represents data associated with prior publications from our lab (Katta et al...
February 2018: Data in Brief
https://www.readbyqxmd.com/read/29234693/lean-and-obese-zucker-rat-extensor-digitorum-longus-muscle-high-frequency-electrical-stimulation-hfes-data-regulation-of-mapks-associated-proteins
#7
Kevin M Rice, Anjaiah Katta, Nandini D P K Manne, Ravikumar Arvapalli, Gautam K Ginjupalli, Miaozong Wu, Shinichi Asano, Eric R Blough
Anaerobic exercise has been advocated as a prescribed treatment for the management of diabetes: however, alterations in exercise-induced signaling remain largely unexplored in the diabetic muscle. Here, we compare the basal and the in situ contraction-induced phosphorylation of the mitogen-activated protein kinases (MAPKs) ERK 1/2, p38, and JNK in the lean and obese (fa/fa) Zucker rat extensor digitorum longus (EDL) muscle following a single bout of contractile stimuli. This article represents data associated with prior publications from our (Katta et al...
February 2018: Data in Brief
https://www.readbyqxmd.com/read/29234691/diabetic-zucker-rat-tibialis-anterior-muscle-high-frequency-electrical-stimulation-hfes-data-regulation-of-mapks-associated-proteins
#8
Gautam K Ginjupalli, Kevin M Rice, Anjaiah Katta, Nandini D P K Manne, Ravikumar Arvapalli, Miaozong Wu, Shinichi Asano, Eric R Blough
Anaerobic exercise has been advocated as a prescribed treatment for the management of diabetes: however, alterations in exercise-induced signaling remain largely unexplored in the diabetic muscle. Here, we compare the basal and the in situ contraction-induced phosphorylation of the mitogen-activated protein kinases (MAPKs) ERK 1/2, p38, and JNK in the lean and obese (fa/fa) Zucker rat tibialus anterior (TA) muscle following a single bout of contractile stimuli. This article represents data associated with prior publications from our lab (Katta et al...
February 2018: Data in Brief
https://www.readbyqxmd.com/read/29232055/outcome-of-orthodontic-palatal-plate-therapy-for-orofacial-dysfunction-in-children-with-down-syndrome-a-systematic-review
#9
REVIEW
F Javed, Z Akram, A P Barillas, S V Kellesarian, H B Ahmed, J Khan, K Almas
To evaluate the effects of orthodontic palatal plate therapy (OPPT) in the treatment of orofacial dysfunction in children with Down syndrome (DS). Indexed databases were searched. Clinical trials in DS allocated to test (treatment with palatal plates) versus control group (without palatal plates/special physiotherapy for orofacial stimulation) with follow-up of any time duration and assessing mouth closure, tongue position, active and inactive muscle function as outcomes. Study designs, subject demographics, frequency and duration of palatal plate therapy, method for assessment, follow-up period and outcomes were reported according to the PRISMA guidelines...
December 12, 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/29231243/neuromuscular-electrical-stimulation-nmes-for-patellofemoral-pain-syndrome
#10
REVIEW
Ana Luiza C Martimbianco, Maria Regina R Torloni, Brenda Ng Andriolo, Gustavo Jm Porfírio, Rachel Riera
BACKGROUND: Patellofemoral pain syndrome, now generally referred to as patellofemoral pain (PFP), is one of the most common orthopaedic disorders, characterised by pain in the anterior or retropatellar knee region. Neuromuscular electrical stimulation (NMES) has been proposed generally as a complementary treatment, associated with other interventions such as exercise, or as a single treatment to increase muscle force, reduce knee pain, and improve function. OBJECTIVES: To assess the effects (benefits and harms) of neuromuscular electrical stimulation for people with patellofemoral pain...
December 12, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29230247/wireless-neuromodulation-for-chronic-back-pain-delivery-of-high-frequency-dorsal-root-ganglion-stimulation-by-a-minimally-invasive-technique
#11
Bart Billet, Roel Wynendaele, Niek E Vanquathem
Objective: To evaluate the analgesic effect of a dorsal root ganglion (DRG) stimulation technology utilizing high-frequency pulse rates to treat intractable chronic back and leg pain. Methods: This case study presents the outcomes, with a novel, wireless, minimally invasive miniature neurostimulator system in a case of chronic back pain. The subject was implanted bilaterally with a Freedom 4A quadripolar electrode array at the L2 dorsal root ganglion. Stimulation was applied using 10 kHz pulse rate and 30 μs pulse width...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/29225972/modulation-of-h-reflex-depression-with-paired-pulse-stimulation-in-healthy-active-humans
#12
Preeti D Oza, Shauna Dudley-Javoroski, Richard K Shields
Depression of the Hoffman reflex (H-reflex) is used to examine spinal control mechanisms during exercise, fatigue, and vibration and in response to training. H-reflex depression protocols frequently use trains of stimuli; this is time-consuming and prevents instantaneous assessment of motor neuronal excitability. The purpose of this study was to determine if paired-pulse H-reflex depression is reproducible and whether paired-pulse stimulation adequately estimates the depression induced by the more traditional ten-pulse train...
2017: Rehabilitation Research and Practice
https://www.readbyqxmd.com/read/29225569/elimination-of-left-right-reciprocal-coupling-in-the-adult-lamprey-spinal-cord-abolishes-the-generation-of-locomotor-activity
#13
J A Messina, Alison St Paul, Sarah Hargis, Wengora E Thompson, Andrew D McClellan
The contribution of left-right reciprocal coupling between spinal locomotor networks to the generation of locomotor activity was tested in adult lampreys. Muscle recordings were made from normal animals as well as from experimental animals with rostral midline (ML) spinal lesions (~13%→35% body length, BL), before and after spinal transections (T) at 35% BL. Importantly, in the present study actual locomotor movements and muscle burst activity, as well as other motor activity, were initiated in whole animals by descending brain-spinal pathways in response to sensory stimulation of the anterior head...
2017: Frontiers in Neural Circuits
https://www.readbyqxmd.com/read/29223037/a-microfabricated-platform-for-the-study-of-chondrogenesis-under-different-compressive-loads
#14
Reza Kowsari-Esfahan, Azadeh Jahanbakhsh, Mohammad Said Saidi, Shahin Bonakdar
Microfluidic devices are beneficial in miniaturizing and multiplexing various cellular assays in a single platform. Chondrogenesis is known to pertain to chemical, topographical, and mechanical cues in the microenvironment. Mechanical cues themselves have numerous parameters such as strain magnitude, frequency, and stimulation time. Effects of different strain magnitudes on the chondrogenic differentiation of adult stem cells have not been explored thoroughly. Here, a new multilayer microdevice is presented for the unidirectional compressive stimulation of cells in a three-dimensional cell culture...
December 5, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29221029/effect-of-crystalline-family-and-orientation-on-stimulated-brillouin-scattering-in-whispering-gallery-mode-resonators
#15
Souleymane Diallo, Jean-Pierre Aubry, Yanne K Chembo
Ultra-high Q whispering-gallery mode resonators pumped by a continuous-wave laser are known to enhance stimulated Brillouin scattering when optimal resonance and phase-matching conditions are met. In crystalline resonators, this process depends critically on the crystal orientation and family, which impose the elastic constants defining the velocity of the acoustic waves. In this article, we investigate the effect of crystalline orientation and family on this velocity which is proportional to the Brillouin frequency down-shift...
November 27, 2017: Optics Express
https://www.readbyqxmd.com/read/29221028/cascaded-second-order-optical-nonlinearities-in-on-chip-micro-rings
#16
Richard Wolf, Ingo Breunig, Hans Zappe, Karsten Buse
We demonstrate cascaded Stimulated Raman Scattering (SRS), Second-Harmonic Generation (SHG), and Sum-Frequency Generation (SFG) in integrated on-chip whispering-gallery resonators (WGRs). These lithium niobate-based WGRs are fabricated using highly-parallel semiconductor manufacturing techniques coupled with specialized polishing as a post-processing step and thus represent a novel means for batch fabrication of this family of non-linear devices. We achieved record high Q-factors for on-chip lithium niobate WGRs reaching up to 3 × 106...
November 27, 2017: Optics Express
https://www.readbyqxmd.com/read/29217404/high-density-eeg-characterization-of-brain-responses-to-auditory-rhythmic-stimuli-during-wakefulness-and-nrem-sleep
#17
Caroline Lustenberger, Yogi A Patel, Sankaraleengam Alagapan, Jessica M Page, Betsy Price, Michael R Boyle, Flavio Frohlich
Auditory rhythmic sensory stimulation modulates brain oscillations by increasing phase-locking to the temporal structure of the stimuli and by increasing the power of specific frequency bands, resulting in Auditory Steady State Responses (ASSR). The ASSR is altered in different diseases of the central nervous system such as schizophrenia. However, in order to use the ASSR as biological markers for disease states, it needs to be understood how different vigilance states and underlying brain activity affect the ASSR...
December 4, 2017: NeuroImage
https://www.readbyqxmd.com/read/29214532/qualitative-and-quantitative-temporal-analysis-of-licit-and-illicit-drugs-in-wastewater-in-australia-using-liquid-chromatography-coupled-to-mass-spectrometry
#18
Richard Bade, Jason M White, Cobus Gerber
The combination of qualitative and quantitative bimonthly analysis of pharmaceuticals and illicit drugs using liquid chromatography coupled to mass spectrometry is presented. A liquid chromatography-quadrupole time of flight instrument equipped with Sequential Window Acquisition of all THeoretical fragment-ion spectra (SWATH) was used to qualitatively screen 346 compounds in influent wastewater from two wastewater treatment plants in South Australia over a 14-month period. A total of 100 compounds were confirmed and/or detected using this strategy, with 61 confirmed in all samples including antidepressants (amitriptyline, dothiepin, doxepin), antipsychotics (amisulpride, clozapine), illicit drugs (cocaine, methamphetamine, amphetamine, 3,4-methylenedioxymethamphetamine (MDMA)), and known drug adulterants (lidocaine and tetramisole)...
December 6, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29212502/a-spatial-analysis-of-dietary-patterns-in-a-large-representative-population-in-the-north-of-the-netherlands-the-lifelines-cohort-study
#19
Louise H Dekker, Richard H Rijnks, Dirk Strijker, Gerjan J Navis
BACKGROUND: Diet is an important modifiable risk factor for chronic diseases. In the search for effective strategies to improve dietary patterns in order to promote healthy ageing, new approaches considering contextual factors in public health medicine are warranted. The aim of this study is to examine the spatial clustering of dietary patterns in a large representative sample of adults. METHODS: Dietary patterns were defined on the basis of a 111 item Food Frequency Questionnaire among n = 117,570 adults using principal components analysis...
December 7, 2017: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/29210178/acute-exposure-to-high-induction-electromagnetic-field-affects-activity-of-model-peripheral-sensory-neurons
#20
Jaroslav Prucha, Jan Krusek, Ivan Dittert, Viktor Sinica, Anna Kadkova, Viktorie Vlachova
Exposure to repetitive low-frequency electromagnetic field (LF-EMF) shows promise as a non-invasive approach to treat various sensory and neurological disorders. Despite considerable progress in the development of modern stimulation devices, there is a limited understanding of the mechanisms underlying their biological effects and potential targets at the cellular level. A significant impact of electromagnetic field on voltage-gated calcium channels and downstream signalling pathways has been convincingly demonstrated in many distinct cell types...
December 6, 2017: Journal of Cellular and Molecular Medicine
keyword
keyword
108745
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"