Microvascular and systemic effects following top load administration of saturated carbon monoxide-saline solution

OBJECTIVE:To determine how top loads with different doses of carbon monoxide (CO)-saturated saline solutions (CO-saline) affect microvascular and systemic hemodynamics and to delineate the corresponding biochemical mechanisms. DESIGN:Prospective study. SETTING:University research laboratory. SUBJECT...

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Veröffentlicht in:Critical care medicine 2007-04, Vol.35 (4), p.1123-1132
Hauptverfasser: Hangai-Hoger, Nanae, Tsai, Amy G, Cabrales, Pedro, Suematsu, Makoto, Intaglietta, Marcos
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container_end_page 1132
container_issue 4
container_start_page 1123
container_title Critical care medicine
container_volume 35
creator Hangai-Hoger, Nanae
Tsai, Amy G
Cabrales, Pedro
Suematsu, Makoto
Intaglietta, Marcos
description OBJECTIVE:To determine how top loads with different doses of carbon monoxide (CO)-saturated saline solutions (CO-saline) affect microvascular and systemic hemodynamics and to delineate the corresponding biochemical mechanisms. DESIGN:Prospective study. SETTING:University research laboratory. SUBJECTS:Male Golden Syrian hamsters. INTERVENTIONS:Hamsters implemented with a dorsal window chamber were given different volumes (characterized as percent of blood volume, BV) by intravenous injection of CO-saturated saline. MEASUREMENTS AND MAIN RESULTS:Hamsters were observed until 90 mins after infusion of CO-saline solution. In the 20% BV CO-saline infusion group, observation was extended until 180 mins. Systemic variables measured included mean arterial pressure, heart rate, systemic arterial blood gases, and cardiac output and index. Microvascular hemodynamic measurements included vessel diameter, red blood cell velocity, and functional capillary density. Cyclic guanosine monophosphate (cGMP) content in the chamber tissue was measured by enzyme immunoassay. 10% BV of CO-saline increased flow maximally in the microcirculation at 30 mins after infusion (207% in arterioles and 238% in venules, p < .05 vs. baseline). Functional capillary density was significantly increased in both 10% and 15% groups (p < .05 vs. baseline), and cardiac index increased 130% (p < .05 vs. baseline) at 10 mins after 10% CO-saline infusion. There were no changes of microhemodynamic variables and functional capillary density with 2.5%, 5%, and 20% CO-saline infusion during the observation period. Microvascular hemodynamic changes by 10% CO-saline infusion were inhibited completely by L-NAME pretreatment and partially by 1H-[1,2,4]oxadiazole[4,3-a]quinoxqalin-1-one pretreatment. cGMP content in skin fold tissues was related to changes of vessel diameter. CONCLUSIONS:Intravenous injection of CO-saturated saline caused vasodilation and improved microvascular hemodynamics in the hamster window chamber model in a dose-dependent manner. These changes were related to increased cardiac output and local cGMP content. These results support the possible use of CO-saturated solutions as a vasodilator in critical conditions.
doi_str_mv 10.1097/01.CCM.0000259533.84180.C7
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DESIGN:Prospective study. SETTING:University research laboratory. SUBJECTS:Male Golden Syrian hamsters. INTERVENTIONS:Hamsters implemented with a dorsal window chamber were given different volumes (characterized as percent of blood volume, BV) by intravenous injection of CO-saturated saline. MEASUREMENTS AND MAIN RESULTS:Hamsters were observed until 90 mins after infusion of CO-saline solution. In the 20% BV CO-saline infusion group, observation was extended until 180 mins. Systemic variables measured included mean arterial pressure, heart rate, systemic arterial blood gases, and cardiac output and index. Microvascular hemodynamic measurements included vessel diameter, red blood cell velocity, and functional capillary density. Cyclic guanosine monophosphate (cGMP) content in the chamber tissue was measured by enzyme immunoassay. 10% BV of CO-saline increased flow maximally in the microcirculation at 30 mins after infusion (207% in arterioles and 238% in venules, p &lt; .05 vs. baseline). Functional capillary density was significantly increased in both 10% and 15% groups (p &lt; .05 vs. baseline), and cardiac index increased 130% (p &lt; .05 vs. baseline) at 10 mins after 10% CO-saline infusion. There were no changes of microhemodynamic variables and functional capillary density with 2.5%, 5%, and 20% CO-saline infusion during the observation period. Microvascular hemodynamic changes by 10% CO-saline infusion were inhibited completely by L-NAME pretreatment and partially by 1H-[1,2,4]oxadiazole[4,3-a]quinoxqalin-1-one pretreatment. cGMP content in skin fold tissues was related to changes of vessel diameter. CONCLUSIONS:Intravenous injection of CO-saturated saline caused vasodilation and improved microvascular hemodynamics in the hamster window chamber model in a dose-dependent manner. These changes were related to increased cardiac output and local cGMP content. These results support the possible use of CO-saturated solutions as a vasodilator in critical conditions.</description><identifier>ISSN: 0090-3493</identifier><identifier>EISSN: 1530-0293</identifier><identifier>DOI: 10.1097/01.CCM.0000259533.84180.C7</identifier><identifier>PMID: 17334240</identifier><identifier>CODEN: CCMDC7</identifier><language>eng</language><publisher>Hagerstown, MD: by the Society of Critical Care Medicine and Lippincott Williams &amp; Wilkins</publisher><subject>Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy ; Animals ; Biological and medical sciences ; Blood Gas Analysis ; Blood Pressure - drug effects ; Blood. Blood and plasma substitutes. Blood products. Blood cells. Blood typing. Plasmapheresis. Apheresis ; Blood. Blood coagulation. Reticuloendothelial system ; Carbon Monoxide - administration &amp; dosage ; Carbon Monoxide - pharmacology ; Carboxyhemoglobin - analysis ; Cardiac Output - drug effects ; Cricetinae ; Cyclic GMP - biosynthesis ; Dose-Response Relationship, Drug ; Heart Rate - drug effects ; Intensive care medicine ; Male ; Medical sciences ; Mesocricetus ; Microcirculation - drug effects ; NG-Nitroarginine Methyl Ester - pharmacology ; Nitric Oxide Synthase - antagonists &amp; inhibitors ; Pharmacology. Drug treatments ; Skin - blood supply ; Sodium Chloride - administration &amp; dosage ; Sodium Chloride - pharmacology ; Transfusions. Complications. Transfusion reactions. 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DESIGN:Prospective study. SETTING:University research laboratory. SUBJECTS:Male Golden Syrian hamsters. INTERVENTIONS:Hamsters implemented with a dorsal window chamber were given different volumes (characterized as percent of blood volume, BV) by intravenous injection of CO-saturated saline. MEASUREMENTS AND MAIN RESULTS:Hamsters were observed until 90 mins after infusion of CO-saline solution. In the 20% BV CO-saline infusion group, observation was extended until 180 mins. Systemic variables measured included mean arterial pressure, heart rate, systemic arterial blood gases, and cardiac output and index. Microvascular hemodynamic measurements included vessel diameter, red blood cell velocity, and functional capillary density. Cyclic guanosine monophosphate (cGMP) content in the chamber tissue was measured by enzyme immunoassay. 10% BV of CO-saline increased flow maximally in the microcirculation at 30 mins after infusion (207% in arterioles and 238% in venules, p &lt; .05 vs. baseline). Functional capillary density was significantly increased in both 10% and 15% groups (p &lt; .05 vs. baseline), and cardiac index increased 130% (p &lt; .05 vs. baseline) at 10 mins after 10% CO-saline infusion. There were no changes of microhemodynamic variables and functional capillary density with 2.5%, 5%, and 20% CO-saline infusion during the observation period. Microvascular hemodynamic changes by 10% CO-saline infusion were inhibited completely by L-NAME pretreatment and partially by 1H-[1,2,4]oxadiazole[4,3-a]quinoxqalin-1-one pretreatment. cGMP content in skin fold tissues was related to changes of vessel diameter. CONCLUSIONS:Intravenous injection of CO-saturated saline caused vasodilation and improved microvascular hemodynamics in the hamster window chamber model in a dose-dependent manner. These changes were related to increased cardiac output and local cGMP content. These results support the possible use of CO-saturated solutions as a vasodilator in critical conditions.</description><subject>Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy</subject><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Blood Gas Analysis</subject><subject>Blood Pressure - drug effects</subject><subject>Blood. Blood and plasma substitutes. Blood products. Blood cells. Blood typing. Plasmapheresis. Apheresis</subject><subject>Blood. Blood coagulation. Reticuloendothelial system</subject><subject>Carbon Monoxide - administration &amp; dosage</subject><subject>Carbon Monoxide - pharmacology</subject><subject>Carboxyhemoglobin - analysis</subject><subject>Cardiac Output - drug effects</subject><subject>Cricetinae</subject><subject>Cyclic GMP - biosynthesis</subject><subject>Dose-Response Relationship, Drug</subject><subject>Heart Rate - drug effects</subject><subject>Intensive care medicine</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Mesocricetus</subject><subject>Microcirculation - drug effects</subject><subject>NG-Nitroarginine Methyl Ester - pharmacology</subject><subject>Nitric Oxide Synthase - antagonists &amp; inhibitors</subject><subject>Pharmacology. Drug treatments</subject><subject>Skin - blood supply</subject><subject>Sodium Chloride - administration &amp; dosage</subject><subject>Sodium Chloride - pharmacology</subject><subject>Transfusions. Complications. Transfusion reactions. 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Intensive care medicine. Transfusions. Cell therapy and gene therapy</topic><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>Blood Gas Analysis</topic><topic>Blood Pressure - drug effects</topic><topic>Blood. Blood and plasma substitutes. Blood products. Blood cells. Blood typing. Plasmapheresis. Apheresis</topic><topic>Blood. Blood coagulation. Reticuloendothelial system</topic><topic>Carbon Monoxide - administration &amp; dosage</topic><topic>Carbon Monoxide - pharmacology</topic><topic>Carboxyhemoglobin - analysis</topic><topic>Cardiac Output - drug effects</topic><topic>Cricetinae</topic><topic>Cyclic GMP - biosynthesis</topic><topic>Dose-Response Relationship, Drug</topic><topic>Heart Rate - drug effects</topic><topic>Intensive care medicine</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Mesocricetus</topic><topic>Microcirculation - drug effects</topic><topic>NG-Nitroarginine Methyl Ester - pharmacology</topic><topic>Nitric Oxide Synthase - antagonists &amp; inhibitors</topic><topic>Pharmacology. Drug treatments</topic><topic>Skin - blood supply</topic><topic>Sodium Chloride - administration &amp; dosage</topic><topic>Sodium Chloride - pharmacology</topic><topic>Transfusions. Complications. Transfusion reactions. Cell and gene therapy</topic><topic>Vasodilation - drug effects</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hangai-Hoger, Nanae</creatorcontrib><creatorcontrib>Tsai, Amy G</creatorcontrib><creatorcontrib>Cabrales, Pedro</creatorcontrib><creatorcontrib>Suematsu, Makoto</creatorcontrib><creatorcontrib>Intaglietta, Marcos</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Critical care medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hangai-Hoger, Nanae</au><au>Tsai, Amy G</au><au>Cabrales, Pedro</au><au>Suematsu, Makoto</au><au>Intaglietta, Marcos</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Microvascular and systemic effects following top load administration of saturated carbon monoxide-saline solution</atitle><jtitle>Critical care medicine</jtitle><addtitle>Crit Care Med</addtitle><date>2007-04</date><risdate>2007</risdate><volume>35</volume><issue>4</issue><spage>1123</spage><epage>1132</epage><pages>1123-1132</pages><issn>0090-3493</issn><eissn>1530-0293</eissn><coden>CCMDC7</coden><abstract>OBJECTIVE:To determine how top loads with different doses of carbon monoxide (CO)-saturated saline solutions (CO-saline) affect microvascular and systemic hemodynamics and to delineate the corresponding biochemical mechanisms. DESIGN:Prospective study. SETTING:University research laboratory. SUBJECTS:Male Golden Syrian hamsters. INTERVENTIONS:Hamsters implemented with a dorsal window chamber were given different volumes (characterized as percent of blood volume, BV) by intravenous injection of CO-saturated saline. MEASUREMENTS AND MAIN RESULTS:Hamsters were observed until 90 mins after infusion of CO-saline solution. In the 20% BV CO-saline infusion group, observation was extended until 180 mins. Systemic variables measured included mean arterial pressure, heart rate, systemic arterial blood gases, and cardiac output and index. Microvascular hemodynamic measurements included vessel diameter, red blood cell velocity, and functional capillary density. Cyclic guanosine monophosphate (cGMP) content in the chamber tissue was measured by enzyme immunoassay. 10% BV of CO-saline increased flow maximally in the microcirculation at 30 mins after infusion (207% in arterioles and 238% in venules, p &lt; .05 vs. baseline). Functional capillary density was significantly increased in both 10% and 15% groups (p &lt; .05 vs. baseline), and cardiac index increased 130% (p &lt; .05 vs. baseline) at 10 mins after 10% CO-saline infusion. There were no changes of microhemodynamic variables and functional capillary density with 2.5%, 5%, and 20% CO-saline infusion during the observation period. Microvascular hemodynamic changes by 10% CO-saline infusion were inhibited completely by L-NAME pretreatment and partially by 1H-[1,2,4]oxadiazole[4,3-a]quinoxqalin-1-one pretreatment. cGMP content in skin fold tissues was related to changes of vessel diameter. CONCLUSIONS:Intravenous injection of CO-saturated saline caused vasodilation and improved microvascular hemodynamics in the hamster window chamber model in a dose-dependent manner. These changes were related to increased cardiac output and local cGMP content. These results support the possible use of CO-saturated solutions as a vasodilator in critical conditions.</abstract><cop>Hagerstown, MD</cop><pub>by the Society of Critical Care Medicine and Lippincott Williams &amp; Wilkins</pub><pmid>17334240</pmid><doi>10.1097/01.CCM.0000259533.84180.C7</doi><tpages>10</tpages></addata></record>
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subjects Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy
Animals
Biological and medical sciences
Blood Gas Analysis
Blood Pressure - drug effects
Blood. Blood and plasma substitutes. Blood products. Blood cells. Blood typing. Plasmapheresis. Apheresis
Blood. Blood coagulation. Reticuloendothelial system
Carbon Monoxide - administration & dosage
Carbon Monoxide - pharmacology
Carboxyhemoglobin - analysis
Cardiac Output - drug effects
Cricetinae
Cyclic GMP - biosynthesis
Dose-Response Relationship, Drug
Heart Rate - drug effects
Intensive care medicine
Male
Medical sciences
Mesocricetus
Microcirculation - drug effects
NG-Nitroarginine Methyl Ester - pharmacology
Nitric Oxide Synthase - antagonists & inhibitors
Pharmacology. Drug treatments
Skin - blood supply
Sodium Chloride - administration & dosage
Sodium Chloride - pharmacology
Transfusions. Complications. Transfusion reactions. Cell and gene therapy
Vasodilation - drug effects
title Microvascular and systemic effects following top load administration of saturated carbon monoxide-saline solution
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