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50 articles concerning extended query  found, showing 1 to 10

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* Thermal analgesia induced by 30-min exposure to 1 microT burst-firing magnetic fields is strongly enhanced in a dose-dependent manner by the alpha2 agonist clonidine in rats. med./biol.
Martin LJ, Persinger MA (2004), Neurosci Lett 366 (2): 226 - 229

* Analgesic and behavioral effects of a 100 microT specific pulsed extremely low frequency magnetic field on control and morphine treated CF-1 mice. med./biol.
Shupak NM, Hensel JM, Cross-Mellor SK, Kavaliers M, Prato FS, Thomas AW (2004), Neurosci Lett 354 (1): 30 - 33

* Shielding, but not zeroing of the ambient magnetic field reduces stress-induced analgesia in mice. med./biol.
Choleris E, Del Seppia C, Thomas AW, Luschi P, Ghione G, Moran GR, Prato FS (2002), Proc Biol Sci 269 (1487): 193 - 201
Exposure: 60 Hz, magnetic field, 50/60 Hz (AC)

* High intensity magnetic stimulation over the lumbosacral spine evokes antinociception in rats. med./biol.
Lin VW, Hsiao I, Kingery WS (2002), Clin Neurophysiol 113 (7): 1006 - 1012
Exposure: 20 Hz, magnetic field

* Action of electric stimulation and captopril in nociception and 3,5,3' thiiodothyronine secretion in mice med./biol.
Motta MA, Vasconcelos MS, Motta ST, Catanho MTAJ (2002), Electromagn Biol Med 21 (2): 185 - 191
Exposure: 9 Hz, electric field, signals/pulses

* Increased analgesia to thermal stimuli in rats after brief exposures to complex pulsed 1 microTesla magnetic fields. med./biol.
Ryczko MC, Persinger MA (2002), Percept Mot Skills 95 (2): 592 - 598

* Extremely low frequency magnetic fields can either increase or decrease analgaesia in the land snail depending on field and light conditions. med./biol.
Prato FS, Kavaliers M, Thomas AW (2000), Bioelectromagnetics 21 (4): 287 - 301
Exposure: 30 Hz - 60 Hz, 50/60 Hz (AC)

* Endomorphin-1 mediates 2 Hz but not 100 Hz electroacupuncture analgesia in the rat. med./biol.
Han Z, Jiang YH, Wan Y, Wang Y, Chang JK, Han JS (1999), Neurosci Lett 274 (2): 75 - 78
Exposure: 2 Hz - 100 Hz

DETAILS * Light-dependent effects of magnetic fields on nitric oxide activation in the land snail. med./biol.
Kavaliers M, Prato FS (1999), Neuroreport 10 (9): 1863 - 1867
Aim: To investigate the light dependency of the effects of extremely low frequency (ELF) magnetic fields on the opioid analgesia mediated behavioural changes in the land snail Cepaea nemoralis.
Background:
Analgesia is mediated by opioids, either exogenous (e.g. morphine) or endogenous (e.g. enkephalin, endorphin). It is assumed that ELF magnetic field exposure reduces this effect caused by opioids and light has a modulatory role. In order to investigate this issue the behaviour of land snails on thermal stimuli (i.e. foot-lifting response on hotplate) was examined under dark and light conditions. To specific biochemical pathways involved in opioid analgesia were surveyed in detail: 1) Nitric oxide (NO)/nitric oxide synthase (NOS) pathway including L-arginine. 2) Use of SCH34826, a specific inhibitor of the enzyme enkephalinase.
Endpoints: cognitive/behavioral endpoints (effects of light and magnetic fields on opioid mediated behavioural changes)
System: invertebrate (species/strain): land snail (Cepaea nemoralis)
Exposure: 60 Hz, magnetic field, low frequency field, 50/60 Hz (AC)

* Antipruritic effect of millimeter waves in mice: evidence for opioid involvement. med./biol.
Rojavin MA, Cowan A, Radzievsky AA, Ziskin MC (1998), Life Sci 63 (18): PL251 - PL257
Exposure: 61.22 GHz, millimeter waves

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