A. G. Chumak

  • Citations Per Year
Learn More
Experiments were performed on rats anesthetized with urethane and nembutal. Intrathecal administration of a nitric oxide inhibitor L-NAME (60 mg) into the cerebrospinal fluid of the thoracic spinal cord was followed by a 40–45% decrease in tonic activity of efferent fibers of the abdominal aortic nerves. L-NAME reduced a reflex increase in the rate of(More)
Subcutaneous injection of L-NAME inhibited afferent impulse activity inn. ischiadicus andn. saphenus and abolished the increase in this activity induced by stimulation of mechanoreceptors after skin irradiation with polarized light with various spectral characteristics. Subsequent subcutaneous injection of sodium nitroprusside restored the pattern of(More)
Acute experiments in cats have revealed that every successive contraction of the jejunum or ileum increases spontaneous afferent and sympathetic efferent discharges in small branches of mesenteric nerves. The increased sympathetic efferent activity either limits or suppresses the contraction of the intestine portion. The above interrelationships among(More)
Short-term irradiation of rat hind limb with polychromatic polarized light at 400–2000 nm produces a long-term inhibition of baseline afferent traffic inn. saphenus, while nonpolarized light produces biphasic changes in baseline activity: transient activation is followed by long-term inhibition of discharges in the nerve. Subcutaneous injection of sodium(More)
  • 1