Changes in hippocampal monoamine concentration following halothane anesthesia and concussion
Identifieur interne : 004532 ( Main/Exploration ); précédent : 004531; suivant : 004533Changes in hippocampal monoamine concentration following halothane anesthesia and concussion
Auteurs : Gerald Eschun [Canada] ; Dwight Parkinson [Canada] ; Jerry Vriend [Canada]Source :
- Surgical Neurology [ 0090-3019 ] ; 1992.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Biogenic Monoamines, Levodopa, Norepinephrine.
- metabolism : Brain Concussion, Hippocampus.
- physiology : Memory.
- Anesthesia, Inhalation, Animals, Halothane, Male, Random Allocation, Rats, Rats, Inbred Strains.
Abstract
The concentration of norepinephrine in the hippocampus of rats anesthetized with halothane (Wyeth-Ayerst, Philadelphia, Pa) is found to be markedly increased, presumably due to the stress of handling and administering the anesthetic. This increased norepinephrine concentration persists for about 50 minutes but is obliterated when the anesthetized rat is concussed. This 50-minute period corresponds to the time it takes for a rat (or human), comatose for 1–2 seconds following concussion, to regain normal memory. No changes in 3,4-dihydroxybenzeneacetic acid (DOPAC), 3-(3,4-dihydroxyphenyl) alanine (L-DOPA), and 3,4-dihydroxybenzylamine (DHBA) were noted. 5Hydroxy indole acetic acid (HIAA) showed a depression at 5 minutes and again at 30 minutes, changes that were consistent but not considered statistically significant.
Url:
DOI: 10.1016/0090-3019(92)90184-O
Affiliations:
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type="state">Manitoba</region></placeName></affiliation></author><author><name sortKey="Parkinson, Dwight" sort="Parkinson, Dwight" uniqKey="Parkinson D" first="Dwight" last="Parkinson">Dwight Parkinson</name><affiliation wicri:level="4"><country xml:lang="fr">Canada</country><wicri:regionArea>Faculty of Medicine, University of Manitoba, Winnipeg, Manitoba</wicri:regionArea><orgName type="university">Université du Manitoba</orgName><placeName><settlement type="city">Winnipeg</settlement><region type="state">Manitoba</region></placeName></affiliation></author><author><name sortKey="Vriend, Jerry" sort="Vriend, Jerry" uniqKey="Vriend J" first="Jerry" last="Vriend">Jerry Vriend</name><affiliation wicri:level="4"><country xml:lang="fr">Canada</country><wicri:regionArea>Faculty of Medicine, University of Manitoba, Winnipeg, Manitoba</wicri:regionArea><orgName type="university">Université du Manitoba</orgName><placeName><settlement type="city">Winnipeg</settlement><region type="state">Manitoba</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Surgical Neurology</title><title level="j" type="abbrev">SUN</title><idno type="ISSN">0090-3019</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1992">1992</date><biblScope unit="volume">37</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="101">101</biblScope><biblScope unit="page" to="105">105</biblScope></imprint><idno type="ISSN">0090-3019</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0090-3019</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Anesthesia, Inhalation</term><term>Animals</term><term>Biogenic Monoamines (metabolism)</term><term>Brain Concussion (metabolism)</term><term>Halothane</term><term>Hippocampus (metabolism)</term><term>Levodopa (metabolism)</term><term>Male</term><term>Memory (physiology)</term><term>Norepinephrine (metabolism)</term><term>Random Allocation</term><term>Rats</term><term>Rats, Inbred Strains</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Biogenic Monoamines</term><term>Levodopa</term><term>Norepinephrine</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Brain Concussion</term><term>Hippocampus</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Memory</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Anesthesia, Inhalation</term><term>Animals</term><term>Halothane</term><term>Male</term><term>Random Allocation</term><term>Rats</term><term>Rats, Inbred Strains</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The concentration of norepinephrine in the hippocampus of rats anesthetized with halothane (Wyeth-Ayerst, Philadelphia, Pa) is found to be markedly increased, presumably due to the stress of handling and administering the anesthetic. This increased norepinephrine concentration persists for about 50 minutes but is obliterated when the anesthetized rat is concussed. This 50-minute period corresponds to the time it takes for a rat (or human), comatose for 1–2 seconds following concussion, to regain normal memory. No changes in 3,4-dihydroxybenzeneacetic acid (DOPAC), 3-(3,4-dihydroxyphenyl) alanine (L-DOPA), and 3,4-dihydroxybenzylamine (DHBA) were noted. 5Hydroxy indole acetic acid (HIAA) showed a depression at 5 minutes and again at 30 minutes, changes that were consistent but not considered statistically significant.</div></front></TEI><affiliations><list><country><li>Canada</li></country><region><li>Manitoba</li></region><settlement><li>Winnipeg</li></settlement><orgName><li>Université du Manitoba</li></orgName></list><tree><country name="Canada"><region name="Manitoba"><name sortKey="Eschun, Gerald" sort="Eschun, Gerald" uniqKey="Eschun G" first="Gerald" last="Eschun">Gerald Eschun</name></region><name sortKey="Parkinson, Dwight" sort="Parkinson, Dwight" uniqKey="Parkinson D" first="Dwight" last="Parkinson">Dwight Parkinson</name><name sortKey="Vriend, Jerry" sort="Vriend, Jerry" uniqKey="Vriend J" first="Jerry" last="Vriend">Jerry Vriend</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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