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Immunology and Infectious Disease Commons™
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Articles 1 - 7 of 7
Full-Text Articles in Immunology and Infectious Disease
Molecular Evolution Of Dengue Type 2 Virus In Thailand, Rebeca Rico-Hesse, Lisa M. Harrison, Ananda Nisalak, David W. Vaughn, Siripen Kalayanarooj, Sharone Green, Alan L. Rothman, Francis A. Ennis
Molecular Evolution Of Dengue Type 2 Virus In Thailand, Rebeca Rico-Hesse, Lisa M. Harrison, Ananda Nisalak, David W. Vaughn, Siripen Kalayanarooj, Sharone Green, Alan L. Rothman, Francis A. Ennis
Sharone Green
Dengue is a mosquito-borne viral infection that in recent years has become a major international public health concern. Dengue hemorrhagic fever (DHF), first recognized in Southeast Asia in the 1950s, is today a leading cause of childhood death in many countries. The pathogenesis of this illness is poorly understood, mainly because there are no laboratory or animal models of disease. We have studied the genetic relationships of dengue viruses of serotype 2, one of four antigenically distinct dengue virus groups, to determine if viruses obtained from cases of less severe dengue fever (DF) have distinct evolutionary origins from those obtained …
Rapid Diagnosis Of Dengue Viremia By Reverse Transcriptase-Polymerase Chain Reaction Using 3'-Noncoding Region Universal Primers, T. Mirawati Sudiro, Hiroaki Ishiko, Sharone Green, Ananda Nisalak, David W. Vaughn, Siripen Kalayanarooj, Alan L. Rothman, Boonyos Raengsakulrach, Jurand Janus, Ichiro Kurane, Francis A. Ennis
Rapid Diagnosis Of Dengue Viremia By Reverse Transcriptase-Polymerase Chain Reaction Using 3'-Noncoding Region Universal Primers, T. Mirawati Sudiro, Hiroaki Ishiko, Sharone Green, Ananda Nisalak, David W. Vaughn, Siripen Kalayanarooj, Alan L. Rothman, Boonyos Raengsakulrach, Jurand Janus, Ichiro Kurane, Francis A. Ennis
Sharone Green
A reverse transcriptase-polymerase chain reaction (RT-PCR) method was developed as a rapid diagnostic test of dengue viremia. To detect dengue viruses in serum or plasma specimens, a pair of universal primers was designed for use in the RT-PCR. Using these primers, the 3'-noncoding region of dengue virus types 1, 2, 3, and 4 could be amplified, but not those of other flaviviruses, such as West Nile virus, Japanese encephalitis virus, and yellow fever virus, or the alphavirus Sindbis virus. The sensitivity of the RT-PCR assay was similar to that of a quantitative fluorescent focus assay of dengue viruses in cell …
Hla Class I Supertype Associations With Clinical Outcome Of Secondary Dengue Virus Infections In Ethnic Thais, Sasijit Vejbaesya, Rungrot Thongpradit, Siripen Kalayanarooj, Komon Luangtrakool, Panpimon Luangtrakool, Robert V. Gibbons, Duangporn Srinak, Somporn Ngammthaworn, Kusuma Apisawes, In-Kyu Yoon, Stephen J. Thomas, Richard G. Jarman, Anon Srikiatkhachorn, Sharone Green, Dasnayanee Chandanayingyong, Sangshin Park, Jennifer Friedman, Alan L. Rothman, Henry A.F. Stephens
Hla Class I Supertype Associations With Clinical Outcome Of Secondary Dengue Virus Infections In Ethnic Thais, Sasijit Vejbaesya, Rungrot Thongpradit, Siripen Kalayanarooj, Komon Luangtrakool, Panpimon Luangtrakool, Robert V. Gibbons, Duangporn Srinak, Somporn Ngammthaworn, Kusuma Apisawes, In-Kyu Yoon, Stephen J. Thomas, Richard G. Jarman, Anon Srikiatkhachorn, Sharone Green, Dasnayanee Chandanayingyong, Sangshin Park, Jennifer Friedman, Alan L. Rothman, Henry A.F. Stephens
Sharone Green
BACKGROUND: Human leukocyte antigen (HLA) supertypes are groups of functionally related alleles that present structurally similar antigens to the immune system.
OBJECTIVES: To analyze HLA class I supertype associations with clinical outcome in hospitalized Thai children with acute dengue illness.
METHODS: Seven hundred sixty-two patients and population-matched controls recruited predominantly in Bangkok were HLA-A and -B typed. HLA supertype frequencies were compared and tested for significant dengue disease associations using logistic regression analyses. Multivariable models were built by conducting forward stepwise selection procedures.
RESULTS: In the final logistic regression model, the HLA-B44 supertype was protective against dengue hemorrhagic fever (DHF) …
Preliminary Evaluation Of Near Infrared Spectroscopy As A Method To Detect Plasma Leakage In Children With Dengue Hemorrhagic Fever, Babs R. Soller, Anon Srikiatkhachorn, Fengmei Zou, Alan L. Rothman, In-Kyu Yoon, Robert V. Gibbons, Siripen Kalayanarooj, Stephen J. Thomas, Sharone Green
Preliminary Evaluation Of Near Infrared Spectroscopy As A Method To Detect Plasma Leakage In Children With Dengue Hemorrhagic Fever, Babs R. Soller, Anon Srikiatkhachorn, Fengmei Zou, Alan L. Rothman, In-Kyu Yoon, Robert V. Gibbons, Siripen Kalayanarooj, Stephen J. Thomas, Sharone Green
Sharone Green
BACKGROUND: Dengue viral infections are prevalent in the tropical and sub-tropical regions of the world, resulting in substantial morbidity and mortality. Clinical manifestations range from a self-limited fever to a potential life-threatening plasma leakage syndrome (dengue hemorrhagic fever). The objective of this study was to assess the utility of near infrared spectroscopy (NIRS) measurements of muscle oxygen saturation (SmO2) as a possible continuous measure to detect plasma leakage in children with dengue.
METHODS: Children ages 6 months to 15 years of age admitted with suspected dengue were enrolled from the dengue ward at Queen Sirikit National Institute for Child Health. …
Sequential Dengue Virus Infections Detected In Active And Passive Surveillance Programs In Thailand, 1994-2010, Piraya Bhoomiboonchoo, Ananda Nisalak, Natkamol Chansatiporn, In-Kyu Yoon, Siripen Kalayanarooj, Mathuros Thipayamongkolgul, Timothy Endy, Alan L. Rothman, Sharone Green, Anon Srikiatkhachorn, Darunee Buddhari, Mammen P. Mammen, Robert V. Gibbons
Sequential Dengue Virus Infections Detected In Active And Passive Surveillance Programs In Thailand, 1994-2010, Piraya Bhoomiboonchoo, Ananda Nisalak, Natkamol Chansatiporn, In-Kyu Yoon, Siripen Kalayanarooj, Mathuros Thipayamongkolgul, Timothy Endy, Alan L. Rothman, Sharone Green, Anon Srikiatkhachorn, Darunee Buddhari, Mammen P. Mammen, Robert V. Gibbons
Sharone Green
BACKGROUND: The effect of prior dengue virus (DENV) exposure on subsequent heterologous infection can be beneficial or detrimental depending on many factors including timing of infection. We sought to evaluate this effect by examining a large database of DENV infections captured by both active and passive surveillance encompassing a wide clinical spectrum of disease.
METHODS: We evaluated datasets from 17 years of hospital-based passive surveillance and nine years of cohort studies, including clinical and subclinical DENV infections, to assess the outcomes of sequential heterologous infections. Chi square or Fisher's exact test was used to compare proportions of infection outcomes such …
T Cell Receptor Vbeta Gene Usage In Thai Children With Dengue Virus Infection, Susan J. Gagnon, Anita M. Leporati, Sharone Green, Siripen Kalayanarooj, David W. Vaughn, Henry A. F. Stephens, Saroj Suntayakorn, Ichiro Kurane, Francis A. Ennis, Alan L. Rothman
T Cell Receptor Vbeta Gene Usage In Thai Children With Dengue Virus Infection, Susan J. Gagnon, Anita M. Leporati, Sharone Green, Siripen Kalayanarooj, David W. Vaughn, Henry A. F. Stephens, Saroj Suntayakorn, Ichiro Kurane, Francis A. Ennis, Alan L. Rothman
Sharone Green
T lymphocyte activation during dengue is thought to contribute to the pathogenesis of dengue hemorrhagic fever (DHF). We examined the T cell receptor Vbeta gene usage by a reverse transcriptase-polymerase chain reaction assay during infection and after recovery in 13 children with DHF and 13 children with dengue fever (DF). There was no deletion of specific Vbeta gene families. We detected significant expansions in usage of single Vbeta families in six subjects with DHF and three subjects with DF over the course of infection, but these did not show an association with clinical diagnosis, viral serotype, or HLA alleles. Differences …
Prediction Of Dengue Disease Severity Among Pediatric Thai Patients Using Early Clinical Laboratory Indicators, James A. Potts, Robert V. Gibbons, Alan L. Rothman, Anon Srikiatkhachorn, Stephen J. Thomas, Pra-On Supradish, Stephenie C. Lemon, Daniel H. Libraty, Sharone Green, Siripen Kalayanarooj
Prediction Of Dengue Disease Severity Among Pediatric Thai Patients Using Early Clinical Laboratory Indicators, James A. Potts, Robert V. Gibbons, Alan L. Rothman, Anon Srikiatkhachorn, Stephen J. Thomas, Pra-On Supradish, Stephenie C. Lemon, Daniel H. Libraty, Sharone Green, Siripen Kalayanarooj
Sharone Green
BACKGROUND: Dengue virus is endemic in tropical and sub-tropical resource-poor countries. Dengue illness can range from a nonspecific febrile illness to a severe disease, Dengue Shock Syndrome (DSS), in which patients develop circulatory failure. Earlier diagnosis of severe dengue illnesses would have a substantial impact on the allocation of health resources in endemic countries. METHODS AND FINDINGS: We compared clinical laboratory findings collected within 72 hours of fever onset from a prospective cohort children presenting to one of two hospitals (one urban and one rural) in Thailand. Classification and regression tree analysis was used to develop diagnostic algorithms using different …