Endorphins and Opiate Antagonists in Psychiatric Research: Clinical ImplicationsNandkumar S. Shah, Alexander G. Donald Springer US, 1982 M08 31 - 488 páginas The discovery of new molecules that function in neuronal communication can be viewed as a progression of steps beginning with the identification of the molecular structure, moving to the understanding of the mecha nisms mediating the synaptic action, and to the appraisal of the involve ment of the new molecules in various neuronal mechanisms, and finally reaching the evaluation of this molecule's role in brain function and the consequences that are triggered by its abnormalities. Enkephalins have followed such a pattern, and the present publication expresses the salient points of the last two phases in this succession. Enkephalins were discovered in December 1975; in addition to pain threshold regulation, their participation in other brain functions was soon ascertained. Perhaps, there are multiple recognition sites for multiple molecular forms of endogenous enkephalins; similarly to other transmitter recognition sites, these are coupled with ionic and nucleotide amplifying systems; thus, when activated, they can modify membrane funtion and ionic permeability of membranes. The present publication probes the current status of our knowledge concerning the consequences related to abnormalities in enkephalin storage, release, and synthesis. However, since our basic understanding of enkephalins is incomplete, the views reported should be considered to be in a state of flux. |
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Página 63
... injection site , effects after i.c. injections occurred on the average after 3 min , effects after i.p. injections occurred on the average after 6 min , with the inhibitory effects of the i.p. injections being less pronounced than those ...
... injection site , effects after i.c. injections occurred on the average after 3 min , effects after i.p. injections occurred on the average after 6 min , with the inhibitory effects of the i.p. injections being less pronounced than those ...
Página 105
... injection of the pentapeptide , with a rapid return to basal levels between 30 and 45 min . It can be seen in Fig ... injection . A similar preferential release of PRL has been observed after injection of B - endorphin into the cisterna ...
... injection of the pentapeptide , with a rapid return to basal levels between 30 and 45 min . It can be seen in Fig ... injection . A similar preferential release of PRL has been observed after injection of B - endorphin into the cisterna ...
Página 152
... INJECTION ) ( INTRAPERITONEAL INJECTION ) 3 mg NALOXONE TIME 12 SEC FIGURE 14. EEG changes during awake - sleep cycle and EEG response to intraventricular administration of ß - endorphin followed by intraperitoneal injection of naloxone ...
... INJECTION ) ( INTRAPERITONEAL INJECTION ) 3 mg NALOXONE TIME 12 SEC FIGURE 14. EEG changes during awake - sleep cycle and EEG response to intraventricular administration of ß - endorphin followed by intraperitoneal injection of naloxone ...
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Endorphins and Opiate Antagonists in Psychiatric Research: Clinical Implications Nandkumar S. Shah,Alexander G. Donald Vista previa limitada - 2012 |
Endorphins and Opiate Antagonists in Psychiatric Research: Clinical Implications Nandkumar S. Shah,Alexander G. Donald Sin vista previa disponible - 2012 |
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Acad acid ACTH action activity administration Akil analgesia analgesic analogs antipsychotic assay B-LPH Barchas behavioral effects Biochem Bloom Brain Res Bunney cerebrospinal fluid chronic clinical concentrations decrease depressed patients dialysate disorders dopamine doses double-blind drugs DTYE Effects of naloxone electrical stimulation endogenous opiates endogenous opioid peptides endorphin levels endorphins enkephalin fraction Goldstein Guillemin hallucinations haloperidol hemodialyses Höllt human hypothalamus immunoreactivity increase infusion inhibition injection Kastin Kline Kosterlitz Lancet ligands lipotropin manic Met-enkephalin methadone morphine naloxone naltrexone narcotic antagonist Natl Nature London neuroleptic neurons Neurosci normal nucleus opiate agonists opiate antagonist opiate peptides opiate receptors opioid peptides pain periaqueductal gray Pert Pharmacol pharmacological placebo plasma potent Proc prolactin Psychiatry psychotic rat brain receptor binding release reported response role schizo schizophrenic schizophrenic patients Science serum Snyder spinal ẞ-endorphin Stereospecific striatum studies suggest symptoms syndrome Terenius tissue treatment vitro Wahlström