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Articles 61 - 65 of 65
Full-Text Articles in Tropical Medicine
Microfluidic Platform For Electrophysiological Recordings From Host-Stage Hookworm And Ascaris Suum Larvae: A New Tool For Anthelmintic Research, Janis Weeks, William Roberts, Kristin Robinson, Melissa Keaney, Jon Vermiere, Joseph Urban, Shawn Lockery, John M. Hawdon
Microfluidic Platform For Electrophysiological Recordings From Host-Stage Hookworm And Ascaris Suum Larvae: A New Tool For Anthelmintic Research, Janis Weeks, William Roberts, Kristin Robinson, Melissa Keaney, Jon Vermiere, Joseph Urban, Shawn Lockery, John M. Hawdon
Microbiology, Immunology, and Tropical Medicine Faculty Publications
The screening of candidate compounds and natural products for anthelmintic activity is important for discovering new drugs against human and animal parasites. We previously validated in Caenorhabditis elegans a microfluidic device (‘chip’) that records non-invasively the tiny electrophysiological signals generated by rhythmic contraction (pumping) of the worm's pharynx. These electropharyngeograms (EPGs) are recorded simultaneously from multiple worms per chip, providing a medium-throughput readout of muscular and neural activity that is especially useful for compounds targeting neurotransmitter receptors and ion channels. Microfluidic technologies have transformedC. elegans research and the goal of the current study was to validate hookworm andAscaris …
Brief Report: Hiv-1 Gp120 T-Cell Responses Correspond To Infection Outcomes In The Global Iprex Chemoprophylaxis Trial., Peter J Kuebler, Brian I Shaw, Kaitlyn S Leadabrand, Megha L Mehrotra, Robert M Grant, Esper G Kallás, Douglas F Nixon
Brief Report: Hiv-1 Gp120 T-Cell Responses Correspond To Infection Outcomes In The Global Iprex Chemoprophylaxis Trial., Peter J Kuebler, Brian I Shaw, Kaitlyn S Leadabrand, Megha L Mehrotra, Robert M Grant, Esper G Kallás, Douglas F Nixon
Microbiology, Immunology, and Tropical Medicine Faculty Publications
Association of HIV-1-specific T-cell responses to infection risk in seronegative individuals is controversial. We quantified and phenotypically characterized gp120-specific T-cell responses in HIV-1 exposed, but uninfected subjects enrolled in the global Pre-exposure Prophylaxis Initiative (iPrEx) chemoprophylaxis trial. IFNγ ELISpot responses were detected in 24% of subjects irrespective of infection outcome. HIV-1 gp120 envelope-specific T-cell responses were more uniformly IFN-γ+TNF-α+Mip-1β+ in persistently seronegative subjects relative to subjects who later seroconverted (median frequency of 76.5% and 66.5%, respectively). IFNγ responses targeted the V2 loop for subjects who remained seronegative. HIV-1 gp120 envelope V2 loop-specific CD8 T-cell responses may help to protect against …
A Conserved Dna Repeat Promotes Selection Of A Diverse Repertoire Of Trypanosoma Brucei Surface Antigens From The Genomic Archive., Galadriel Hovel-Miner, Monica R Mugnier, Benjamin Goldwater, George A M Cross, F Nina Papavasiliou
A Conserved Dna Repeat Promotes Selection Of A Diverse Repertoire Of Trypanosoma Brucei Surface Antigens From The Genomic Archive., Galadriel Hovel-Miner, Monica R Mugnier, Benjamin Goldwater, George A M Cross, F Nina Papavasiliou
Microbiology, Immunology, and Tropical Medicine Faculty Publications
African trypanosomes are mammalian pathogens that must regularly change their protein coat to survive in the host bloodstream. Chronic trypanosome infections are potentiated by their ability to access a deep genomic repertoire of Variant Surface Glycoprotein (VSG) genes and switch from the expression of one VSG to another. Switching VSG expression is largely based in DNA recombination events that result in chromosome translocations between an acceptor site, which houses the actively transcribed VSG, and a donor gene, drawn from an archive of more than 2,000 silent VSGs. One element implicated in these duplicative gene conversion events is a DNA repeat …
Opisthorchiasis: An Overlooked Danger., Ludmila M Ogorodova, Olga S Fedorova, Banchob Sripa, Viatcheslav A Mordvinov, Aleksei V Katokhin, Jennifer Keiser, Peter Odermatt, Paul J. Brindley, Oleg A Mayboroda, Thirumalaisamy P Velavan, Maxim B Freidin, Alexey E Sazonov, Irina V Saltykova, Mariya Y Pakharukova, Yulia V Kovshirina, Kostas Kaloulis, Olga Y Krylova, Maria Yazdanbakhsh
Opisthorchiasis: An Overlooked Danger., Ludmila M Ogorodova, Olga S Fedorova, Banchob Sripa, Viatcheslav A Mordvinov, Aleksei V Katokhin, Jennifer Keiser, Peter Odermatt, Paul J. Brindley, Oleg A Mayboroda, Thirumalaisamy P Velavan, Maxim B Freidin, Alexey E Sazonov, Irina V Saltykova, Mariya Y Pakharukova, Yulia V Kovshirina, Kostas Kaloulis, Olga Y Krylova, Maria Yazdanbakhsh
Microbiology, Immunology, and Tropical Medicine Faculty Publications
No abstract provided.
Neglected Tropical Diseases As Hidden Causes Of Cardiovascular Disease, Yasmin Moolani, Gene Bukhman, Peter J. Hotez
Neglected Tropical Diseases As Hidden Causes Of Cardiovascular Disease, Yasmin Moolani, Gene Bukhman, Peter J. Hotez
Microbiology, Immunology, and Tropical Medicine Faculty Publications
No abstract provided.