Abstract:
OBJECTIVE:To investigate the concentrations of reduced and total glutathione in relation to the muscle free amino acid pattern in critically ill patients and matched healthy controls. DESIGN:Prospective case control. SETTING:University hospital intensive care unit (ICU). PATIENTS:Eleven critically ill patients in the intensive care unit were studied after a stay of at least 4 days. Eleven age- and gender-matched metabolically healthy patients undergoing elective surgical procedures served as controls. INTERVENTIONS:None. MEASUREMENTS AND MAIN RESULTS:Reduced and total glutathione concentrations were determined in skeletal muscle, in plasma, and in whole blood, together with muscle free amino acid concentrations. In the ICU group, reduced and total glutathione values were 57% and 62%, respectively, of the values seen in the control group (p < .001). In addition, a decreased ratio between reduced and total glutathione compared with the controls was seen (0.80 as compared with 0.91, p < .001). The glutamine concentration in skeletal muscle in the ICU group was 72% lower compared with that value seen in healthy controls (p < .001). Correlations were found between the concentrations of glutamine and the total muscle glutathione (r2 = .46, p < .001), as well as between glutamine and the ratio of reduced and total glutathione (r2 = .45, p < .001) in skeletal muscle, suggesting that the redox status of glutathione and the glutamine status of the tissue are related. CONCLUSIONS:Critical illness is associated with alterations in muscle glutathione metabolism. The muscle-reduced glutathione concentrations decrease and, in addition, the ratio between reduced and total glutathione decreases, indicating a situation of oxidative stress in this tissue. This decrease may impair the defense of muscle against oxygen free radicals and influence amino acid transport, thus contributing to the loss of balance between protein synthesis and protein degradation that is characteristic of protein catabolism.
journal_name
Crit Care Medjournal_title
Critical care medicineauthors
Hammarqvist F,Luo JL,Cotgreave IA,Andersson K,Wernerman Jdoi
10.1097/00003246-199701000-00016subject
Has Abstractpub_date
1997-01-01 00:00:00pages
78-84issue
1eissn
0090-3493issn
1530-0293journal_volume
25pub_type
杂志文章abstract:OBJECTIVES:Lung contusion is a major risk factor for the development of acute respiratory distress syndrome. We set to determine the role of toll-like receptor 3 and the binding of double-stranded RNA in the pathogenesis of sterile injury following lung contusion. DESIGN:Toll-like receptor 3 expression was analyzed in...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000001879
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to highlight the link between induced hypothermia and increased survival duration as observed in the septic model developed by the laboratory. To reach this objective, survival duration and blood oxygen transport capacity were measured at two temperatures-38 °C (induced normothermia...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3182373134
更新日期:2012-03-01 00:00:00
abstract:OBJECTIVES:To explore the relationship between timing of continuous renal replacement therapy commencement and clinical outcomes in critically ill patients with acute kidney injury. The primary outcomes were all-cause mortality at 28 and 90 days. DESIGN:Nested observational cohort study using data from the Randomized ...
journal_title:Critical care medicine
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1097/CCM.0000000000000343
更新日期:2014-08-01 00:00:00
abstract:OBJECTIVE:To evaluate the safety of human albumin administered for therapeutic purposes. DESIGN:Retrospective compilation of spontaneously reported serious adverse events. SETTING:Records of serious adverse event reports received from 1990 through 1997 by nine major suppliers of therapeutic human albumin worldwide. ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200105000-00021
更新日期:2001-05-01 00:00:00
abstract:OBJECTIVE:To evaluate the impact of a newly appointed neurointensivist on neurosciences intensive care unit (NICU) patient outcomes and quality of care variables. DESIGN:Observational cohort with historical controls. SETTING:Ten-bed neurointensive care unit in tertiary university hospital. PATIENTS:Mortality, length...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.ccm.0000146131.03578.21
更新日期:2004-11-01 00:00:00
abstract::Critically ill patients who fear impending death may die suddenly. We studied prospectively the incidence of death in critically ill surgical patients who articulated the fear that they were about to die. Physiologic, environmental, and behavioral correlates which might influence perceptions of impending death were ex...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198607000-00005
更新日期:1986-07-01 00:00:00
abstract::This report describes an unusual hemolytic transfusion reaction. A group O donor was inadvertently transfused with 100 ml of group A red cells during the course of plasmapheresis. Granulocytopenia, thrombocytopenia, hypofibrinogenemia and low levels of factors V, VIII, and IX developed immediately after the infusion. ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-197501000-00003
更新日期:1975-01-01 00:00:00
abstract:OBJECTIVES:The primary objective of this study was to identify which patient demographic, patient health, and hospital characteristics were associated with in-hospital mortality. A secondary objective was to determine the relative influence of these characteristics on mortality. DESIGN AND SETTING:Public-use data for ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e31825bc92f
更新日期:2012-11-01 00:00:00
abstract:OBJECTIVE:To determine the relative distribution of fluid within the extracellular fluid volume (ECFV) and the effect on oxygen delivery after infusing either normal saline or 5% albumin in cardiac surgical patients. DESIGN:Prospective, randomized, unblinded, interventional study. SETTING:Cardiac surgical intensive c...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00003246-200112000-00011
更新日期:2001-12-01 00:00:00
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journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000002872
更新日期:2018-03-01 00:00:00
abstract:OBJECTIVES:To test whether hospital-based physicians made different intensive care unit and life-sustaining treatment decisions for otherwise identical black and white patients with end-stage cancer and life-threatening hypoxia. DESIGN:We conducted a randomized trial of the relationship between patient race and physic...
journal_title:Critical care medicine
pub_type: 杂志文章,随机对照试验
doi:10.1097/CCM.0b013e3182186e98
更新日期:2011-07-01 00:00:00
abstract::To further define cardiovascular abnormalities in patients with septic shock, serial conventional hemodynamic measurements combined with two-dimensional echocardiographic studies were performed at the bedside in 21 patients admitted for an acute episode of sepsis-related circulatory failure. Measurements obtained duri...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199010000-00001
更新日期:1990-10-01 00:00:00
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journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200007000-00047
更新日期:2000-07-01 00:00:00
abstract:OBJECTIVE:Procalcitonin may be associated with reduced antibiotic usage compared to usual care. However, individual randomized controlled trials testing this hypothesis were too small to rule out harm, and the full cost-benefit of this strategy has not been evaluated. The purpose of this analysis was to evaluate the ef...
journal_title:Critical care medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1097/CCM.0b013e31821201a5
更新日期:2011-07-01 00:00:00
abstract:OBJECTIVES:To create a novel tool to predict favorable neurologic outcomes during ICU stay among children with critical illness. DESIGN:Logistic regression models using adaptive lasso methodology were used to identify independent factors associated with favorable neurologic outcomes. A mixed effects logistic regressio...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000002753
更新日期:2018-01-01 00:00:00
abstract::To evaluate the effect of meconium on pulmonary surface tension properties, the mechanics of 30 excised, separated canine pulmonary lobes were studied. Meconia were blended in normal saline to produce solutions of 10% and 20%. Solutions were filtered to remove large particles and instilled endobronchially into the can...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198504000-00005
更新日期:1985-04-01 00:00:00
abstract:OBJECTIVE:A hallmark of amniotic fluid embolism is the induction of coagulation defects. Little is known about the nature of these defects or the causative agent or agents. The purpose of this study was to assess the effects of meconium containing (native) meconium-amniotic-fluid infusion (MAFI) and meconium-free (cent...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199902000-00042
更新日期:1999-02-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to determine whether changing heat and moisture exchangers (HMEs) every 96 hrs rather than 24 hrs would affect their efficacy to preserve the heat and moisture of inspiratory gases. The impact of a prolonged use of the HME on its microbial colonization was also assessed. DESIGN:Pros...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200003000-00019
更新日期:2000-03-01 00:00:00
abstract:OBJECTIVES:To describe the physiologic mechanisms of ventilator-induced lung injury and to define the major ventilator and host-dependent risk factors that contribute to such injury. DATA SOURCE:Basic science and clinical studies related to ventilator-induced barotrauma and lung pathophysiology. STUDY SELECTION:Empha...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/00003246-199301000-00024
更新日期:1993-01-01 00:00:00
abstract:OBJECTIVES:We previously reported gene expression-based endotypes of pediatric septic shock, endotypes A and B, and that corticosteroid exposure was independently associated with increased mortality among pediatric endotype A patients. The Vasopressin vs Norepinephrine as Initial Therapy in Septic Shock trial tested th...
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pub_type: 杂志文章
doi:10.1097/CCM.0000000000004709
更新日期:2021-01-01 00:00:00
abstract:OBJECTIVE:Several studies report calcium mishandling, sarcomere disarray, and caspase activation during heart failure. Although active caspases have been shown to cleave myofibrillar proteins, little is known regarding their effects on calcium handling proteins. Therefore, we aimed to explore how endotoxin-induced casp...
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pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181eedafb
更新日期:2010-10-01 00:00:00
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pub_type: 杂志文章
doi:10.1097/01.ccm.0000142661.73633.15
更新日期:2004-10-01 00:00:00
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journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e31826ab3a1
更新日期:2013-02-01 00:00:00
abstract::The focus on improving education in critical care medicine must begin early in medical school training and further be promoted during residency if there is to be an increase in intensivists in the hospital workforce. This is "critical" to healthcare reform movements that are endorsing full-time critical care coverage ...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/01.CCM.0000252917.25301.18
更新日期:2007-02-01 00:00:00
abstract:OBJECTIVES:To use a standardized tool for a multicenter assessment of antibiotic appropriateness in ICUs and identify local antibiotic stewardship improvement opportunities. DESIGN:Pilot point prevalence conducted on October 5, 2016; point prevalence survey conducted on March 1, 2017. SETTING:ICUs in 12 U.S. acute ca...
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pub_type: 杂志文章
doi:10.1097/CCM.0000000000004344
更新日期:2020-07-01 00:00:00
abstract::Hemodynamic effects of controlled mechanical ventilation (CMV), intermittent mandatory ventilation (IMV), and intermittent mandatory ventilation with 5 cm H20 PEEP (IMV 5 peep) were studied in 20 patients after aortocoronary bypass surgery. Significant increases in cardiac index (CI) and stroke volume index (SI) (p le...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198207000-00001
更新日期:1982-07-01 00:00:00
abstract:OBJECTIVES:Cognitive deficits after traumatic brain injury are a leading cause of disability worldwide, yet no effective pharmacologic treatments exist to improve cognition. Traumatic brain injury increases proinflammatory cytokines, which trigger excess function of α5 subunit-containing γ-aminobutyric acid type A rece...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000004161
更新日期:2020-04-01 00:00:00
abstract:OBJECTIVE:To quantify the therapeutic efficacy of loop diuretics in acute renal failure using Bayesian evidence synthesis, because despite widespread use, the role of diuretics is controversial. DATA SOURCE:Randomized controlled trials or nonrandomized studies, 1966 to January 2007, identified from MEDLINE and EMBASE ...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/01.ccm.0000284503.88148.6f
更新日期:2007-11-01 00:00:00
abstract:OBJECTIVE:To evaluate a novel combination of preoperative, intraoperative, and postoperative variables (including the Parsonnet, and the Acute Physiology and Chronic Health Evaluation II and III [APACHE II and III] scores) in cardiac surgery patients in order to predict hospital outcome, complications, and length of st...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章
doi:10.1097/00003246-199511000-00010
更新日期:1995-11-01 00:00:00
abstract:OBJECTIVES:Sepsis results in organ dysfunction caused by a dysregulated host response, in part related to the immune response of a severe infection. Mesenchymal stromal cells are known to modulate the immune response, and expression of stromal cell-derived factor-1 regulates mobilization of neutrophils from the bone ma...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000004244
更新日期:2020-05-01 00:00:00