2022
Long-term quantitative assessment of anti-SARS-CoV-2 spike protein immunogenicity (QUASI) after COVID-19 vaccination in older people living with HIV (PWH)
Tuan JJ, Zapata H, Barakat L, Andrews L, Behnegar A, Kim YW, Kayani J, Mutic S, Ryall L, Turcotte B, Critch-Gilfillan T, Zhao M, Salahuddin S, Gupta S, Sutton R, Friedland G, Emu B, Ogbuagu O. Long-term quantitative assessment of anti-SARS-CoV-2 spike protein immunogenicity (QUASI) after COVID-19 vaccination in older people living with HIV (PWH). BMC Infectious Diseases 2022, 22: 744. PMID: 36131232, PMCID: PMC9491266, DOI: 10.1186/s12879-022-07737-0.Peer-Reviewed Original ResearchConceptsT cell responsesAnti-spike IgGVisit 3SARS-CoV-2Older PWHVisit 2Immune responseSingle-center longitudinal observational studyVirus-specific T cell responsesVaccine-induced humoral immunityLong-term protective immunityT cell immune responsesOlder peopleMedian age 61RBD IgG levelsPrimary study outcomeCOVID-19 vaccinationImmune response evaluationLongitudinal observational studyCOVID-19 vaccineWilcoxon signed-rank testBNT162b2 boosterBNT162b2 vaccinationCD8 responsesDetectable CD4
2018
Impact of Aging and HIV Infection on the Function of the C-Type Lectin Receptor MINCLE in Monocytes
Zapata HJ, Van Ness PH, Avey S, Siconolfi B, Allore HG, Tsang S, Wilson J, Barakat L, Mohanty S, Shaw AC. Impact of Aging and HIV Infection on the Function of the C-Type Lectin Receptor MINCLE in Monocytes. The Journals Of Gerontology Series A 2018, 74: 794-801. PMID: 30239628, PMCID: PMC6521921, DOI: 10.1093/gerona/gly209.Peer-Reviewed Original ResearchConceptsPro-inflammatory environmentHIV infectionInnate immune pattern recognition receptorsPeripheral blood mononuclear cellsImmune pattern recognition receptorsCohort of HIVC-type lectin receptorsBlood mononuclear cellsMulticolor flow cytometryC-type lectin receptor MinclePattern recognition receptorsIL-10IL-12Cytokine productionIL-6Mononuclear cellsImmune responseHost responseCord factorFlow cytometryM. tuberculosisLectin receptorsMycobacterium tuberculosisOlder adultsImpact of aging
2015
Increased Levels of Macrophage Inflammatory Proteins Result in Resistance to R5-Tropic HIV-1 in a Subset of Elite Controllers
Walker WE, Kurscheid S, Joshi S, Lopez CA, Goh G, Choi M, Barakat L, Francis J, Fisher A, Kozal M, Zapata H, Shaw A, Lifton R, Sutton RE, Fikrig E. Increased Levels of Macrophage Inflammatory Proteins Result in Resistance to R5-Tropic HIV-1 in a Subset of Elite Controllers. Journal Of Virology 2015, 89: 5502-5514. PMID: 25740989, PMCID: PMC4442529, DOI: 10.1128/jvi.00118-15.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedCase-Control StudiesCD4-Positive T-LymphocytesChemokine CCL3Chemokine CCL4Chemokine CCL5Chemokines, CCCohort StudiesFemaleGene DosageHIV InfectionsHIV Long-Term SurvivorsHIV-1Host-Pathogen InteractionsHumansMacrophage Inflammatory ProteinsMaleMiddle AgedReceptors, CCR5Receptors, CXCR4RNA, MessengerUp-RegulationConceptsElite controllersHIV-seropositive individualsAntiretroviral therapyT cellsMIP-1βMIP-1αHIV infectionSeropositive individualsAbsence of ARTR5-tropic HIV-1Macrophage inflammatory protein-1αR5-tropic HIVInflammatory protein-1αT cell resistancePandemic health problemRANTES chemokinesHIV replicationRare patientsHealthy controlsTherapeutic effectHIV entryHIV-1X4-tropicHealth problemsProtein-1α
2013
Initial diagnosis of HIV/AIDS in a 56-year-old man with non-healing forearm lesion
Zapata HJ, Villanueva M, Shenoi S. Initial diagnosis of HIV/AIDS in a 56-year-old man with non-healing forearm lesion. BMJ Case Reports 2013, 2013: bcr2013201184. PMID: 24248316, PMCID: PMC3841407, DOI: 10.1136/bcr-2013-201184.Peer-Reviewed Case Reports and Technical NotesConceptsForearm lesionPatient underwent incisionHIV viral loadMonths of treatmentSignificant medical problemHIV/AIDSEmpiric antibioticsAntiretroviral therapyCD4 countUnderwent incisionInitial diagnosisViral loadStarry stainImmunohistochemistry testingCopies/Bacillary angiomatosisHispanic menMedical problemsLesionsBartonella quintanaCells/PatientsMenHIVAngiomatosis