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Pagina 1 a partire dal 22 risultati
Hypoxia enhances antibody-dependent dengue virus infection.
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Dengue virus (DENV) has been found to replicate in lymphoid organs such as the lymph nodes, spleen, and liver in post-mortem analysis. These organs are known to have low oxygen levels (~0.5-4.5% O2) due to the vascular anatomy. However, how physiologically low levels of oxygen affect DENV infection
Furosemide infusion in children with dengue fever and hypoxemia.
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OBJECTIVE
To study the role of furosemide infusion in the management of Acute respiratory distress syndrome (ARDS) associated with dengue fever.
METHODS
Children between the ages of 1 month to 18 years, who fulfilled the WHO clinical criteria for dengue infection and American European Consensus
The Role of Tissue Oxygen Tension in Dengue Virus Replication.
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Low oxygen tension exerts a profound effect on the replication of several DNA and RNA viruses. In vitro propagation of Dengue virus (DENV) has been conventionally studied under atmospheric oxygen levels despite that in vivo, the tissue microenvironment is hypoxic. Here, we compared the efficiency of
Hyperventilation in children with dengue hemorrhagic fever (DHF).
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Many studies of Dengue Hemorrhagic Fever (DHF) have been done but only a few revealed the respiratory status. Respiratory problems arise because of plasma leakage through the damaged capillaries, causing lung edema and in turn result in hypoxemia. This later on will be compensated by a
Acute lung injury after platelet transfusion in a patient with dengue fever.
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Transfusion-related acute lung injury (TRALI) is a serious clinical syndrome associated with the transfusion of plasmacontaining blood components. Recently, TRALI has come to be recognized as the leading cause of transfusion-related mortality. This complication typically presents as shortness of
Dengue infection in pregnancy and its impact on the placenta.
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A histopathological and immunohistochemical study was conducted in placental tissues and retained products of conception from 24 patients with confirmed dengue infection during pregnancy. The immunohistochemical assay was positive for dengue virus in 19 placental and three ovular remnants analyzed.
Apoptosis in tissues from fatal dengue shock syndrome.
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BACKGROUND
Apoptosis, or programmed cell death, has been implicated in dengue hemorrhagic fever/dengue shock syndrome (DHF/DSS) pathogenesis.
OBJECTIVE
To determine the in vivo apoptosis contribution to the pathogenesis of fatal DHF/DSS during a Cuban dengue epidemic.
METHODS
We detected apoptosis
RNA interference mediated silencing of Hsp60 gene in human monocytic myeloma cell line U937 revealed decreased dengue virus multiplication.
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Heat shock proteins (Hsps) or stress proteins are highly conserved molecules and expressed in all cell types under stressful conditions like heat, cold, hypoxia and infections. The objective of the present study was to determine the effect of dengue virus infection on relative expression of stress
Dengue virus induces PCSK9 expression to alter antiviral responses and disease outcomes
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Dengue virus (DENV) infection requires cholesterol as a pro-viral factor although statin treatment did not show antiviral efficacy in dengue patients. Here, we show that DENV infection manipulates cholesterol metabolism in cells residing in low oxygen microenvironments (hypoxia) such as the liver,
Dengue fever: Report from the task force on tropical diseases by the World Federation of Societies of Intensive and Critical Care Medicine.
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Dengue is an arbovirus affecting humans and spread by mosquitoes. Severe dengue follows a secondary infection with a different virus serotype. The problem is truly global as it is endemic in over 100 countries. Severe dengue can be a life-threatening because of increased vascular permeability,
Dengue hemorrhagic fever complicated with acute liver failure: a case report.
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BACKGROUND
Dengue is a common arboviral infection with a clinically diverse spectrum of presentations. Although hepatic dysfunction is commonly identified in patients will dengue illness, acute liver failure is rare. The etiopathogenesis of hepatic dysfunction is multifactorial and related to direct
Management and outcomes of severe dengue patients presenting with sepsis in a tropical country.
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BACKGROUND
Dengue is a common cause of infection in adults in tropical countries. Sepsis is a syndrome of systemic manifestations induced by infection of any organisms; including bacterial, fungal and viral agents. Here, we investigated the diagnosis, management and outcomes of dengue patients
Modulation of Dengue/Zika Virus Pathogenicity by Antibody-Dependent Enhancement and Strategies to Protect Against Enhancement in Zika Virus Infection.
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Antibody-dependent enhancement (ADE) is a phenomenon in which preexisting poorly neutralizing antibodies leads to enhanced infection. It is a serious concern with mosquito-borne flaviviruses such as Dengue virus (DENV) and Zika virus (ZIKV). In vitro experimental evidences have indicated the
Stress-caused anergy of leukocytes towards Staphylococcal enterotoxin B and exposure transcriptome signatures.
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Leucocytes from soldiers exposed to battlefield-like stress (RASP: Rangers Assessment and Selection Program) were exposed in vitro to Staphylococcal enterotoxin B (SEB). We assayed SEB-induced regulation of gene expression, both in the presence and absence of severe stress, to generate two sets of
Mortality Predictors of ARDS in Medical Intensive Care Unit of a Tertiary Care Centre in a Tropical Country
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Acute respiratory distress syndrome (ARDS) is a clinical syndrome of severe dyspnoea of rapid onset, hypoxemia, and diffuse pulmonary infiltrates leading to respiratory failure in the absence of cardiac failure. We did the study to asses various aetiologies of ARDS, to determine the correlation
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