Evaluation of low-dose endotoxin administration during pregnancy as a model of preeclampsia.

Abstract:

BACKGROUND:Recent evidence implicates nitric oxide (*NO) in the pathogenesis of preeclampsia. The authors tested the hypothesis that administration of low-dose endotoxin to pregnant rats mimics the signs of preeclampsia in humans and that *NO and *NO-derived species play a role in that animal model. METHODS:Endotoxin was infused at doses of 1, 2 and 10 microg/kg over 1 h to rats on day 14 of pregnancy. Mean arterial pressure, urinary protein, urinary and plasma nitrite plus nitrate (NO2- + NO3-) concentrations, and platelet count were measured before and after the endotoxin infusion. In another group of pregnant rats, the nitric oxide synthase inhibitor L-nitroarginine methyl ester (L-NAME) was administered in drinking water at a dose of 3 mg x kg(-1) x d(-1) starting on day 7 of pregnancy. Endotoxin was then infused at 10 microg/kg on day 14 of pregnancy. Kidneys and uteroplacental units were examined histologically and analyzed immunohistochemically for 3-nitrotyrosine. RESULTS:Endotoxin administration at doses of 2 and 10 microg/kg caused proteinuria and thrombocytopenia in pregnant rats, but did not result in hypertension. Urinary NO2- + NO3- concentration, reflective of tissue *NO production rates, was significantly elevated in pregnant rats that received endotoxin at 10 microg/kg. Ingestion of L-NAME caused hypertension. Tissues from pregnant rats treated with L-NAME, endotoxin at 10 microg/kg, and a combination of L-NAME and endotoxin had increased 3-nitrotyrosine immunoreactivity. CONCLUSION:Nitric oxide either directly or through secondary species plays a significant role in the biochemical and physiologic changes that occur in a rodent model of endotoxin-induced injury.

journal_name

Anesthesiology

journal_title

Anesthesiology

authors

Sakawi Y,Tarpey M,Chen YF,Calhoun DA,Connor MG,Chestnut DH,Parks DA

doi

10.1097/00000542-200012000-00017

subject

Has Abstract

pub_date

2000-12-01 00:00:00

pages

1446-55

issue

6

eissn

0003-3022

issn

1528-1175

journal_volume

93

pub_type

杂志文章
  • A comparison of the posterior versus lateral approaches to the block of the sciatic nerve in the popliteal fossa.

    abstract:BACKGROUND:The main disadvantage of the posterior approach to the block of the sciatic nerve in the popliteal fossa (popliteal block [PB]) is the need to place the patient in the prone position. In this study, the authors examined the clinical utility of a recently described lateral approach to PB that is performed wit...

    journal_title:Anesthesiology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1097/00000542-199806000-00010

    authors: Hadzić A,Vloka JD

    更新日期:1998-06-01 00:00:00

  • Moxonidine, a selective imidazoline-alpha2 -adrenergic receptor agonist, produces spinal synergistic antihyperalgesia with morphine in nerve-injured mice.

    abstract:BACKGROUND:Moxonidine, a novel imidazoline-alpha2-adrenergic receptor-selective analgesic, was recently identified as antinociceptive but has yet to be evaluated in neuropathic pain models. alpha2-adrenergic receptor-selective analgesics, and high-efficacy opioids, effectively inhibit neuropathic pain behaviors in rode...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-200009000-00026

    authors: Fairbanks CA,Nguyen HO,Grocholski BM,Wilcox GL

    更新日期:2000-09-01 00:00:00

  • Thiopental treatment after global brain ischemia in pigtailed monkeys.

    abstract::The authors investigated the value of high-dose thiopental (TH) therapy after 16-min complete global brain ischemia (GBI) in three groups of pigtailed monkeys, using a neck cuff model of GBI with 96 h intensive care postischemia (PI). Control group (n18): Normotension was restored within 2 min PI; paralysis/controlled...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-198402000-00002

    authors: Gisvold SE,Safar P,Hendrickx HH,Rao G,Moossy J,Alexander H

    更新日期:1984-02-01 00:00:00

  • Left ventricular mechanical consequences of dihydropyridine calcium channel modulation in conscious and anesthetized chronically instrumented dogs.

    abstract:BACKGROUND:Volatile anesthetics depress left ventricular contractile function by altering voltage-dependent slow calcium (Ca2+) channel activity in the sarcolemmal membrane. This investigation examined the left ventricular systolic and diastolic mechanical effects of the dihydropyridine Ca2+ channel antagonist nifedipi...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199407000-00026

    authors: Pagel PS,Hettrick DA,Warltier DC

    更新日期:1994-07-01 00:00:00

  • Dose-response relationship of intrathecal morphine for postcesarean analgesia.

    abstract:BACKGROUND:This series investigated the quality of analgesia and the incidence and severity of side effects of intrathecal morphine for post-cesarean analgesia administered over a dose range of 0.0-0.5 mg. METHODS:ONE hundred eight term parturients undergoing cesarean delivery at term and given spinal anesthesia were ...

    journal_title:Anesthesiology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1097/00000542-199902000-00018

    authors: Palmer CM,Emerson S,Volgoropolous D,Alves D

    更新日期:1999-02-01 00:00:00

  • Separate lung blood flow in anesthetized dogs: a comparative study between electromagnetometry and SF6 and CO2 elimination.

    abstract::Anesthetized, prone dogs were intubated with a double-lumen endobronchial tube, and the lungs were ventilated independently. Three methods of recording differential blood flow were compared during unilateral lung hypoxia: electromagnetic flow measurement, flow probes being fitted onto each main pulmonary artery after ...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-198708000-00015

    authors: Carlsson AJ,Hedenstierna G,Blomqvist H,Strandberg A

    更新日期:1987-08-01 00:00:00

  • Carboetomidate: a pyrrole analog of etomidate designed not to suppress adrenocortical function.

    abstract:BACKGROUND:Etomidate is a sedative hypnotic that is often used in critically ill patients because it provides superior hemodynamic stability. However, it also binds with high affinity to 11beta-hydroxylase, potently suppressing the synthesis of steroids by the adrenal gland that are necessary for survival. The authors ...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/ALN.0b013e3181cf40ed

    authors: Cotten JF,Forman SA,Laha JK,Cuny GD,Husain SS,Miller KW,Nguyen HH,Kelly EW,Stewart D,Liu A,Raines DE

    更新日期:2010-03-01 00:00:00

  • Effects of volatile and intravenous anesthesia on the alveolar and systemic inflammatory response in thoracic surgical patients.

    abstract:BACKGROUND:One-lung ventilation (OLV) results in alveolar proinflammatory effects, whereas their extent may depend on administration of anesthetic drugs. The current study evaluates the effects of different volatile anesthetics compared with an intravenous anesthetic and the relationship between pulmonary and systemic ...

    journal_title:Anesthesiology

    pub_type: 杂志文章,随机对照试验

    doi:10.1097/ALN.0b013e318214b9de

    authors: Schilling T,Kozian A,Senturk M,Huth C,Reinhold A,Hedenstierna G,Hachenberg T

    更新日期:2011-07-01 00:00:00

  • Pulsus alternans during general anesthesia with halothane: effects of permissive hypercapnia.

    abstract:BACKGROUND:Pulsus alternans is a classic type of abnormal pulse. It can be defined as a regular alternation of pulse amplitude in which runs of weak and strong beats follow each other alternatively without any change in cycle length. It may be a sign of severe decompensated congestive heart failure. The authors infrequ...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-200007000-00017

    authors: Saghaei M,Mortazavian M

    更新日期:2000-07-01 00:00:00

  • Morphologic changes in mouse spermatozoa after exposure to inhalational anesthetics during early spermatogenesis.

    abstract::The authors studied anesthetic mutagenesis following exposure in vivo by use of an adaptation of the mouse spermatozoa morphology assay of Wyrobek and Bruce. The epididymal spermatozoa of (C57B1/C3H)F1 mice were examined for morphologic abnormalities following exposure to near-0.1 MAC and greater concentrations of gen...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-198101000-00010

    authors: Land PC,Owen EL,Linde HW

    更新日期:1981-01-01 00:00:00

  • Effect of needle puncture on morphine and lidocaine flux through the spinal meninges of the monkey in vitro. Implications for combined spinal-epidural anesthesia.

    abstract:BACKGROUND:Combined spinal-epidural anesthesia is a technique growing in popularity. However, there have been no attempts to investigate the risk of epidural drug reaching the subarachnoid space in high concentration by passing through the meningeal hole left by the spinal needle. This study begins to address this ques...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199404000-00019

    authors: Bernards CM,Kopacz DJ,Michel MZ

    更新日期:1994-04-01 00:00:00

  • Barbiturate anesthetics inhibit thromboxane-, potassium-, but not angiotensin-induced pulmonary vasoconstriction.

    abstract::Administration of the oxidant lipid peroxide tertiary butyl hydroperoxide (t-bu-OOH) in the isolated rabbit lung leads to acute pulmonary vasoconstriction, which is caused by the synthesis of thromboxane. The inhalational anesthetics, halothane, nitrous oxide, and cyclopropane, markedly enhance t-bu-OOH-induced pulmon...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-198905000-00012

    authors: McShane AJ,Crowley K,Shayevitz JR,Michael JR,Adkinson NF Jr,Traystman RJ,Gurtner GH

    更新日期:1989-05-01 00:00:00

  • Influence of administration rate on propofol plasma-effect site equilibration.

    abstract:BACKGROUND:The authors hypothesized a difference in plasma-effect site equilibration, depicted by a first-order constant k(e0), depending on the injection rate of propofol. METHODS:Sixty-one patients received 2.5 mg/kg propofol given as a bolus or as a 1-, 2-, or 3-min infusion. The Bispectral Index was used to monito...

    journal_title:Anesthesiology

    pub_type: 杂志文章,随机对照试验

    doi:10.1097/01.anes.0000278902.15505.f8

    authors: Struys MM,Coppens MJ,De Neve N,Mortier EP,Doufas AG,Van Bocxlaer JF,Shafer SL

    更新日期:2007-09-01 00:00:00

  • Effects of thoracic epidural anesthesia with and without autonomic nervous system blockade on cardiac monophasic action potentials and effective refractoriness in awake dogs.

    abstract:BACKGROUND:The effects of thoracic epidural anesthesia (TEA) on myocardial repolarization and arrhythmogenicity are only incompletely understood. This is primarily because of the lack of appropriate experimental models. In most of the studies performed thus far, TEA was used in anesthetized animals. Baseline anesthesia...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-200107000-00023

    authors: Meissner A,Eckardt L,Kirchhof P,Weber T,Rolf N,Breithardt G,Van Aken H,Haverkamp W

    更新日期:2001-07-01 00:00:00

  • Preoperative and intraoperative predictors of postoperative acute respiratory distress syndrome in a general surgical population.

    abstract:BACKGROUND:Acute respiratory distress syndrome (ARDS) is a devastating condition with an estimated mortality exceeding 30%. There are data suggesting risk factors for ARDS development in high-risk populations, but few data are available in lower incidence populations. Using risk-matched analysis and a combination of cl...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/ALN.0b013e3182794975

    authors: Blum JM,Stentz MJ,Dechert R,Jewell E,Engoren M,Rosenberg AL,Park PK

    更新日期:2013-01-01 00:00:00

  • Assessment of competency in anesthesiology.

    abstract::Assessment of competency in traditional graduate medical education has been based on observation of clinical care and classroom teaching. In anesthesiology, this has been relatively easy because of the high volume of care provided by residents under the direct observation of faculty in the operating room. With the mov...

    journal_title:Anesthesiology

    pub_type: 杂志文章,评审

    doi:10.1097/01.anes.0000264778.02286.4d

    authors: Tetzlaff JE

    更新日期:2007-04-01 00:00:00

  • High-efficiency delivery of salbutamol with a metered-dose inhaler in narrow tracheal tubes and catheters.

    abstract::We sought to determine the percent delivery by metered-dose inhaler (MDI) of a preparation of salbutamol (albuterol) to the distal end of either pediatric-size tracheal tubes or a narrow-gauge catheter. A bench model consisting of a swivel actuator; 3.0-6.0-mm ID tracheal tubes all 16 cm in length or a 19-G (standard ...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199102000-00024

    authors: Taylor RH,Lerman J

    更新日期:1991-02-01 00:00:00

  • Halothane reversibly inhibits human neutrophil bacterial killing.

    abstract::The effect of halothane, at clinically relevant concentrations on the ability of human polymorphonuclear leukocytes (PMNL) to kill the most frequently isolated gram-negative organisms responsible for human bacteremias, Escherichia coli and Klebsiella pneumoniae, was studied. Exposure of PMNL to 0.75 per cent halothane...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-198155060-00009

    authors: Welch WD

    更新日期:1981-12-01 00:00:00

  • Isoflurane neuroprotection in hypoxic hippocampal slice cultures involves increases in intracellular Ca2+ and mitogen-activated protein kinases.

    abstract:BACKGROUND:The volatile anesthetic isoflurane reduces acute and delayed neuron death in vitro models of brain ischemia, an action that the authors hypothesize is related to moderate increases in intracellular calcium concentration ([Ca2+]i). Specifically, the authors propose that during hypoxia, moderate increases in [...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-200503000-00020

    authors: Gray JJ,Bickler PE,Fahlman CS,Zhan X,Schuyler JA

    更新日期:2005-03-01 00:00:00

  • A 1966 Anesthetic Administered by Robert D. Dripps, M.D., Demonstrated His Experimental Style of Clinical Care.

    abstract::Robert D. Dripps, M.D. (1911 to 1973), helped found academic anesthesiology. Newly reviewed teaching slides from the University of Pennsylvania (Philadelphia, Pennsylvania) contain six anesthesia records from 1965 to 1967 that involved Dripps. They illustrate the clinical philosophy he taught-to consider administratio...

    journal_title:Anesthesiology

    pub_type: 传,历史文章,杂志文章

    doi:10.1097/ALN.0000000000001109

    authors: Johnstone RE,Fleisher LA

    更新日期:2016-06-01 00:00:00

  • Halothane and isoflurane decrease alveolar epithelial fluid clearance in rats.

    abstract:BACKGROUND:Active sodium transport is the primary mechanism that drives alveolar fluid clearance. In the current study, the effects of exposure to halothane and isoflurane on alveolar fluid clearance in rats were evaluated. METHODS:Rats were exposed to either halothane (0.4% for 6 h or 2% for 2 h) or isoflurane (0.6% ...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199803000-00027

    authors: Rezaiguia-Delclaux S,Jayr C,Luo DF,Saïdi NE,Meignan M,Duvaldestin P

    更新日期:1998-03-01 00:00:00

  • Emulsified isoflurane enhances thermal transient receptor potential vanilloid-1 channel activation-mediated sensory/nociceptive blockade by QX-314.

    abstract:BACKGROUND:QX-314 produces nociceptive blockade, facilitated by permeation through transient receptor potential vanilloid-1 (TRPV1) channels. TRPV1 channel can be activated by noxious heat and sensitized by volatile anesthetics. The authors hypothesized that emulsified isoflurane (EI) could enhance thermal TRPV1 channe...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/ALN.0000000000000236

    authors: Zhou C,Liang P,Liu J,Zhang W,Liao D,Chen Y,Chen X,Li T

    更新日期:2014-08-01 00:00:00

  • Stability of pseudocholinesterase in stored blood.

    abstract::No significant change in pseudocholinesterase levels was observed in random specimens of whole blood stored for as long as 30 days. Levels in plasma anticoagulated with heparin or ethylenediaminetetraacetic acid declined only slightly. Therefore, massive transfusions do not contraindicate succinylcholine administratio...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-197605000-00014

    authors: Lanks KW,Sklar GS

    更新日期:1976-05-01 00:00:00

  • Influence of polyethylene glycol superoxide dismutase/catalase on altered opioid-induced pial artery dilation after brain injury.

    abstract:BACKGROUND:The current study was designed to investigate the influence of pretreatment with the oxygen radical scavengers polyethylene glycol superoxide dismutase and catalase (SODCAT) on altered opioid-induced pial artery dilation after fluid percussion brain injury (FPI) in the newborn pig. It has been observed previ...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199603000-00017

    authors: Thorogood MC,Armstead WM

    更新日期:1996-03-01 00:00:00

  • Does a higher positive end expiratory pressure decrease mortality in acute respiratory distress syndrome? A systematic review and meta-analysis.

    abstract:BACKGROUND:Positive end expiratory pressure (PEEP) is an important component of therapy in patients with acute lung injury or acute respiratory distress syndrome. The independent effect of PEEP on mortality is currently unknown. METHODS:A systematic review and meta-analysis of randomized controlled clinical trials com...

    journal_title:Anesthesiology

    pub_type: 杂志文章,meta分析,评审

    doi:10.1097/ALN.0b013e31819fae06

    authors: Phoenix SI,Paravastu S,Columb M,Vincent JL,Nirmalan M

    更新日期:2009-05-01 00:00:00

  • Neonatal patterns of breathing after cesarean section with or without epidural fentanyl.

    abstract::The pattern of breathing and lung mechanics were evaluated during the first 7 h of life in full-term healthy newborns delivered by cesarean section with bupivacaine epidural anesthesia, without (group 1) or with the addition of 100 micrograms of fentanyl (group 2). Respiration and oxyhemoglobin saturation (SpO2) were ...

    journal_title:Anesthesiology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1097/00000542-199012000-00007

    authors: Benlabed M,Dreizzen E,Ecoffey C,Escourrou P,Migdal M,Gaultier C

    更新日期:1990-12-01 00:00:00

  • Analgesic effects of gabapentin after spinal surgery.

    abstract:BACKGROUND:A combination of opioid and nonopioid analgesic drugs may improve the quality of postoperative analgesia as well as reduce opioid requirements and their associated side effects. Studies have shown synergism between gabapentin and morphine in animal and human experiments and in the treatment of incisional pai...

    journal_title:Anesthesiology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1097/00000542-200404000-00025

    authors: Turan A,Karamanlioğlu B,Memiş D,Hamamcioglu MK,Tükenmez B,Pamukçu Z,Kurt I

    更新日期:2004-04-01 00:00:00

  • Factor VII levels and international normalized ratios in the early phase of warfarin therapy.

    abstract:BACKGROUND:Factor VII is the most affected clotting factor during the early phase of warfarin therapy. An international normalized ratio (INR) of more than 1.4 is considered unsafe for epidural catheter placement or removal, according to the American Society of Regional Anesthesia and Pain Medicine. The authors tested ...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/ALN.0b013e3181ca6cfc

    authors: Benzon HT,Avram MJ,Benzon HA,Kirby-Nolan M,Nader A

    更新日期:2010-02-01 00:00:00

  • Exogenous ethyl pyruvate versus pyruvate during metabolic recovery after oxidative stress in neonatal rat cerebrocortical slices.

    abstract:BACKGROUND:Exogenous pyruvate and ethyl pyruvate (EP), the key ingredient in a new Ringer's solution in clinical trials, are antioxidants as well as metabolic substrates. In vivo studies show both to be protective in oxidative stress, with EP being better. The authors used an acute rat brain slice preparation to compar...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/01.anes.0000281898.01966.1e

    authors: Zeng J,Liu J,Yang GY,Kelly MJ,James TL,Litt L

    更新日期:2007-10-01 00:00:00

  • Reversible inhibition of rapid axonal transport in vivo by lidocaine hydrochloride.

    abstract::Rats were given standardized injections of 3H-L-proline into the trigeminal ganglion and 14C-lidocaine hydrochloride at the infraorbital foramen. The 3H-L-proline was always injected 2.5 h before removal of the nerve. Lidocaine, 1, 2, and 4%, produced a concentration-related inhibition of entry of 3H-labeled rapid axo...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-197602000-00009

    authors: Fink BR,Kish SJ

    更新日期:1976-02-01 00:00:00