Xem 1-6 trên 6 kết quả Cns stimulants
  • Every day veterinarians in practice are asked to treat pets exhibiting problem behaviors. In the last several years pharmacologic treatments of behavior have made significant advances and can serve as a critical part of therapy. Veterinary Pscyhopharmacology is a complete source of current knowledge on the subject of pharmacologic behavior modification that veterinarians can turn to for the answers they need.

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  • The brain and spinal cord compose the Central Nervous System (CNS), which is the control center of the body. Inputs from muscles, involuntary organs, and senses travel through the nerves of the Peripheral Nervous System (PNS) into the CNS where they are interpreted. Signals may travel within the brain to separate functional areas. Instructions are then sent outward again for voluntary movement and involuntary regulation to complete the endless loop of the nervous system circuitry.

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  • This chapter will concentrate on the mechanisms by which drugs alter neurotransmission of relevance to the treatment of psychiatric disorders. ■ The major site of action for drugs used in psychiatry is the synapse and in particular those utilising amines or amino acids as neurotransmitters. ■ The majority of the drugs act either presynaptically to influence levels of the neurotransmitter in the synaptic cleft, or by altering the functional state of the postsynaptic receptors.

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  • Introduction: Caffeine, theophylline and theobromine are contained in coffee, chocolate (cocoa) and tea (black and green) as weakly basic natural alkaloids. The structures of the methylxanthine derivatives/xanthine derivatives including the above natural alkaloids together with synthetic ones are shown in Table 4.1 [1]. Theophylline, dyphylline (diprophylline) and proxyphylline are being used mainly as bronchodilators and/or heart stimulants. Caffeine mildly stimulates the central nervous system (CNS), awakens people, relieves them from general fatigue and activates mental activities.

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  • Hop up, Dick, love! See how glorious the sun is on the new snow. Now isn't that more beautiful than your dreams? And see the birdies! They can't find any breakfast. Let's hurry and have our morning wrestle and dress and give them some breakie before Anne calls." The mother is Ethel Baxter Lord. She is thirty-eight, and Dick-boy is just five. The mother's face is striking, striking as an example of fine chiseling of features, each line standing for sensitiveness, and each change revealing refinement of thought. The eyes and hair are richly brown.

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  • Prothoracicotropic hormone (PTTH) plays a central role in controlling molting, metamorphosis, and diapause termination in insects by stimulating the prothoracic glands to synthesize and release the molting hormone, ecdysone. Using Autographa californicanucleopolyhedrovirus (AcNPV)-mediated transient gene transfer into the central nervous sytem (CNS) of the silkworm, Bombyx mori, we identified two cis-regulatory elements that participate in the decision and the enhancement ofPTTHgene expression in PTTH-producing neurosecretory cells (PTPCs). ...

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