scholarly journals Skin Cold Stimulation of the Dermatome Modulates Activation of the Quadriceps

2012 ◽  
Vol 24 (2) ◽  
pp. 169-174 ◽  
Author(s):  
Hitoshi Sugawara ◽  
Ryota Shimose ◽  
Chigaya Tadano ◽  
Masuo Muro
1969 ◽  
Vol 47 (5) ◽  
pp. 453-457 ◽  
Author(s):  
W. T. Josenhans ◽  
G. N. Melville ◽  
W. T. Ulmer

The effect on airway conductance (Gaw) and functional residual capacity (FRC) of stimulation of cold receptors in facial skin was studied in 12 healthy young subjects, with a body plethysmograph. Mean Gaw decreased significantly, from 0.44 to 0.38 liter s−1 cm−1 H2O, in 10 subjects. FRC was only slightly affected, probably because the experiment was too brief to allow air-trapping. It is concluded that the Gaw decrease during exposure to cold results from bronchoconstriction due to (a) stimulation of trigeminal nerve cold receptors and to (b) pharyngeal and glottal airway resistance increase resulting from frequent involuntary 'dry' swallowing.


2002 ◽  
Vol 109 (1) ◽  
pp. S97-S97
Author(s):  
Renata Witkowska ◽  
Alan Wolff ◽  
Kumar Patel ◽  
Stanley Weiss ◽  
Leonard Bielory

2016 ◽  
Vol 18 (2) ◽  
pp. 133
Author(s):  
L.K. Altunina ◽  
I.V. Kuvshinov ◽  
V.A. Kuvshinov ◽  
V.S. Ovsyannikova ◽  
D.I. Chuykina ◽  
...  

The results of a pilot application of a chemical composition for enhanced oil recovery developed at the IPC SB RAS are presented. The EOR-composition was tested in 2014 at the Permian-Carboniferous heavy oil deposit at the Usinskoye oil field. It is very effective for an increase in oil production rate and decrease in water cuttings of well production. In terms of the additionally produced oil, the resulting effect is up to 800 tons per well and its duration is up to 6 months. The application of technologies of low-productivity-well stimulation using the oil-displacing IKhNPRO system with controlled viscosity and alkalinity is thought to be promising. This composition is proposed for the cold’ stimulation of high-viscosity oil production as an alternative to thermal methods.


2016 ◽  
Vol 11 (1) ◽  
pp. 19-26 ◽  
Author(s):  
Michele Sterling ◽  
Jessica Head ◽  
Peter J. Cabot ◽  
Michael Farrell

AbstractBackground and aimsWhiplash Associated Disorders (WAD) are a costly health burden. The condition is characterised by sensory disturbances such as widespread hyperalgesia likely indicative of central hyperexcitability. Recently elevated levels of pro-inflammatory biomarkers have also found in acute and chronic WAD. The aim of this cross-sectional study was to investigate the relationship between inflammatory biomarkers and pain processing in people with persistent whiplash associated disorders (WAD).MethodsTwenty one participants with chronic whiplash (>3 months) were recruited. Venous blood samples were collected and assays performed for C-reactive protein (CRP) and TNF-α. Blood oxygen level-dependent (BOLD) contrast images of the brain were acquired with a Siemens 1.5T MRI scanner during repeated 24 s stimulus blocks of innocuous or painful stimuli (thumbnail pressure and cold stimulation of dorsum of hand) separated by 36 s inter-stimulus intervals. Stimulus intensities used during scanning were at the level of participants’ thresholds for moderate pain. Parameter estimates representing BOLD signal increases during painful events from each participant were tested for associations with inflammatory biomarkers.ResultsClinically relevant levels of CRP and TNF-α were found in 33% and 38% of participants. Levels of CRP showed a positive correlation with levels of cold pain activation in brain regions including the anterior insula, posterior parietal cortex, caudate and thalamus (pcorrected < 0.05). Levels of TNF-α were not related to activation levels during either noxious pressure or cold. Pressure pain activations also did not show a relationship with CRP levels.ConclusionsShared variance between inflammation and increased levels of regional pain-related activation in people with persistent whiplash symptoms is apparent for cold, but not pressure stimuli.ImplicationsThe results highlight cold pain processing as an important aspect of whiplash chronicity, although the implications of this modality-specific effect are not readily apparent.


2002 ◽  
Vol 168 (5) ◽  
pp. 2035-2039 ◽  
Author(s):  
SHINOBU MATSUURA ◽  
HIDEHIRO KAKIZAKI ◽  
TAKAHIKO MITSUI ◽  
TOHRU SHIGA ◽  
NAGARA TAMAKI ◽  
...  

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