2023
Exercise Pathophysiology in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome and Postacute Sequelae of SARS-CoV-2 More in Common Than Not?
Joseph P, Singh I, Oliveira R, Capone C, Mullen M, Cook D, Stovall M, Squires J, Madsen K, Waxman A, Systrom D. Exercise Pathophysiology in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome and Postacute Sequelae of SARS-CoV-2 More in Common Than Not? CHEST Journal 2023, 164: 717-726. PMID: 37054777, PMCID: PMC10088277, DOI: 10.1016/j.chest.2023.03.049.Peer-Reviewed Original ResearchConceptsMyalgic encephalomyelitis/chronic fatigue syndromeME/CFSChronic fatigue syndromeSARS-CoV-2Fatigue syndromePostacute sequelaeCardiopulmonary exercise testingSystemic blood flowExercise pathophysiologyExertional intoleranceIntractable fatigueExercise testingAcute infectionPostexertional malaiseExercise intoleranceOrthostatic intoleranceVentilatory controlLong-term consequencesBlood flowClinical overlapSuch symptomsIntoleranceSequelaeCOVID-19SyndromeDeficient butyrate-producing capacity in the gut microbiome is associated with bacterial network disturbances and fatigue symptoms in ME/CFS
Guo C, Che X, Briese T, Ranjan A, Allicock O, Yates R, Cheng A, March D, Hornig M, Komaroff A, Levine S, Bateman L, Vernon S, Klimas N, Montoya J, Peterson D, Lipkin W, Williams B. Deficient butyrate-producing capacity in the gut microbiome is associated with bacterial network disturbances and fatigue symptoms in ME/CFS. Cell Host & Microbe 2023, 31: 288-304.e8. PMID: 36758522, PMCID: PMC10183837, DOI: 10.1016/j.chom.2023.01.004.Peer-Reviewed Original ResearchConceptsME/CFSFaecalibacterium prausnitziiMyalgic encephalomyelitis/chronic fatigue syndromeFecal short-chain fatty acidsChronic fatigue syndromeShort-chain fatty acidsGut microbiome diversityGut dysbiosisGastrointestinal disturbancesTherapeutic trialsFatigue severityFatigue syndromeOrthostatic intoleranceValidation cohortHealthy controlsCognitive dysfunctionFatigue symptomsGut microbiomeDiverse cohortButyrate producersHuman gutPossible targetsEubacterium rectaleCohortMulti-omics analysis
2014
Effects of Sex and Gender on Adaptation to Space: Cardiovascular Alterations
Platts SH, Merz C, Barr Y, Fu Q, Gulati M, Hughson R, Levine BD, Mehran R, Stachenfeld N, Wenger NK. Effects of Sex and Gender on Adaptation to Space: Cardiovascular Alterations. Journal Of Women's Health 2014, 23: 950-955. PMID: 25401939, PMCID: PMC4236093, DOI: 10.1089/jwh.2014.4912.Peer-Reviewed Original ResearchConceptsIntracranial pressure syndromeFemale astronautsSex-specific effectsBasic science researchCardiovascular alterationsOrthostatic intoleranceCardiovascular adaptationVascular agingClinical studiesVascular endotheliumOverall populationEffects of sexCurrent cohortWarrants examinationWomenSexGender differencesPotential benefitsAstronaut ageSyndromeCohortEndotheliumIntolerance
2011
Estrogen enhances baroreflex sensitivity in women with low orthostatic tolerance
Wenner M, Taylor H, Haddadin A, Stachenfeld N. Estrogen enhances baroreflex sensitivity in women with low orthostatic tolerance. The FASEB Journal 2011, 25: 647.3-647.3. DOI: 10.1096/fasebj.25.1_supplement.647.3.Peer-Reviewed Original ResearchCardiovagal baroreflex sensitivityBaroreflex sensitivityLow orthostatic toleranceOrthostatic toleranceCumulative stress indexPlasma E2Endogenous sex hormone productionGnRH antagonist administrationBlood pressure responseSex hormone productionLower body negative pressure testBaseline BPAntagonist administrationBaroreflex functionSystolic BPE2 administrationOrthostatic intoleranceE2 conditionsBolus infusionHT womenNegative pressure testProgesterone concentrationsSodium nitroprussideGnRHaDay 5Progesterone enhances adrenergic control of skin blood flow in women with high but not low orthostatic tolerance
Wenner MM, Taylor HS, Stachenfeld NS. Progesterone enhances adrenergic control of skin blood flow in women with high but not low orthostatic tolerance. The Journal Of Physiology 2011, 589: 975-986. PMID: 21173076, PMCID: PMC3060374, DOI: 10.1113/jphysiol.2010.194563.Peer-Reviewed Original ResearchConceptsLow orthostatic toleranceHigh orthostatic toleranceOrthostatic toleranceAdrenergic responseAdrenergic responsivenessNitric oxide synthase inhibitor NG-monomethylEndogenous sex hormone productionSynthase inhibitor NG-monomethylSkin blood flow responseBlood flow responseInhibitor NG-monomethylSex hormone productionFemale sex hormonesLower body negative pressure testSkin blood flowGnRH antagonistProgesterone administrationOrthostatic intoleranceNG-monomethylPeripheral αMicrodialysis infusionSex hormonesCyclooxygenase pathwayHT womenAdrenergic control
2010
Peripheral microvascular responses to norepinephrine in women with orthostatic intolerance
Wenner M, Taylor H, Stachenfeld N. Peripheral microvascular responses to norepinephrine in women with orthostatic intolerance. The FASEB Journal 2010, 24: 991.17-991.17. DOI: 10.1096/fasebj.24.1_supplement.991.17.Peer-Reviewed Original ResearchCumulative stress indexVasoconstrictor responsesAdrenergic responseMaximal lower body negative pressureLower body negative pressurePeripheral microvascular responseEffects of estradiolBody negative pressureFemale sex hormonesSkin blood flowEndogenous E2GnRH antagonistNE infusionDaily administrationMicrovascular responsesCutaneous microvasculatureOrthostatic intoleranceOrthostatic toleranceSex hormonesBlood flowSkin microvasculatureAdrenergic stimulationDay 4Hormone treatmentDay 13
This site is protected by hCaptcha and its Privacy Policy and Terms of Service apply