0000000000299355

AUTHOR

Manuel Leal

showing 3 related works from this author

Altered metabolism of gut microbiota contributes to chronic immune activation in HIV-infected individuals.

2015

Altered interplay between gut mucosa and microbiota during treated HIV infection may possibly contribute to increased bacterial translocation and chronic immune activation, both of which are predictors of morbidity and mortality. Although a dysbiotic gut microbiota has recently been reported in HIV + individuals, the metagenome gene pool associated with HIV infection remains unknown. The aim of this study is to characterize the functional gene content of gut microbiota in HIV + patients and to define the metabolic pathways of this bacterial community, which is potentially associated with immune dysfunction. We determined systemic markers of innate and adaptive immunity in a cohort of HIV-in…

ImmunologyHIV InfectionsBiologyGut floraAdaptive ImmunityMicrobiologyMetabolomicsImmunityAntiretroviral Therapy Highly ActiveRNA Ribosomal 16SMetabolomeImmunology and AllergyCluster AnalysisHumansMetabolomicsGeneCase-control studyBayes TheoremBiodiversityAcquired immune systembiology.organism_classificationImmunity InnateMarkov ChainsGastrointestinal MicrobiomeMetabolic pathwayCase-Control StudiesImmunologyDisease ProgressionHIV-1MetabolomeMetagenomeMucosal immunology
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The effects of prebiotics on microbial dysbiosis, butyrate production and immunity in HIV-infected subjects

2017

Altered interactions between the gut mucosa and bacteria during HIV infection seem to contribute to chronic immune dysfunction. A deeper understanding of how nutritional interventions could ameliorate gut dysbiosis is needed. Forty-four subjects, including 12 HIV+ viremic untreated (VU) patients, 23 antiretroviral therapy-treated (ART(+)) virally suppressed patients (15 immunological responders and 8 non-responders) and 9 HIV- controls (HIV-), were blindly randomized to receive either prebiotics (scGOS/lcFOS/glutamine) or placebo (34/10) over 6 weeks in this pilot study. We assessed fecal microbiota composition using deep 16S rRNA gene sequencing and several immunological and genetic marker…

AdultMale0301 basic medicine030106 microbiologyImmunologyHIV InfectionsInflammationButyrateBiologyGut floraMicrobiologyFeces03 medical and health sciencesIntestinal mucosaImmunityRNA Ribosomal 16SmedicineHumansImmunology and AllergyIntestinal MucosaBacteriaImmunityMiddle AgedPlacebo Effectmedicine.diseasebiology.organism_classificationGastrointestinal MicrobiomeGlutamineButyratesPrebiotics030104 developmental biologyMucosal immunologyDietary SupplementsHost-Pathogen InteractionsImmunologyHIV-1DysbiosisFemalemedicine.symptomDysbiosisMucosal Immunology
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Dietary inflammatory index and all-cause mortality in large cohorts: The SUN and PREDIMED studies

2019

[Background]: Inflammation is known to be related to the leading causes of death including cardiovascular disease, several types of cancer, obesity, type 2 diabetes, depression-suicide and other chronic diseases. In the context of whole dietary patterns, the Dietary Inflammatory Index (DII®) was developed to appraise the inflammatory potential of the diet. [Objective]: We prospectively assessed the association between DII scores and all-cause mortality in two large Spanish cohorts and valuated the consistency of findings across these two cohorts and results published based on other cohorts.

AdultMale0301 basic medicinemedicine.medical_specialtyMediterranean diet030209 endocrinology & metabolismContext (language use)Type 2 diabetesDiet MediterraneanCritical Care and Intensive Care MedicineDietary inflammatory indexBody Mass IndexYoung Adult03 medical and health sciences0302 clinical medicineRisk FactorsInternal medicineMediterranean dietHumansMedicineObesityProspective StudiesMortalityProspective cohort studyRandomized Controlled Trials as TopicInflammation030109 nutrition & dieteticsNutrition and Dieteticsbusiness.industrySmokingHazard ratioMiddle Agedmedicine.diseaseObesityDietC-Reactive ProteinDiabetes Mellitus Type 2CohortPatient ComplianceCohort studiesFemalebusinessCRPCohort study
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