2024
Paediatric hydrocephalus
Kahle K, Klinge P, Koschnitzky J, Kulkarni A, MacAulay N, Robinson S, Schiff S, Strahle J. Paediatric hydrocephalus. Nature Reviews Disease Primers 2024, 10: 35. PMID: 38755194, DOI: 10.1038/s41572-024-00519-9.Peer-Reviewed Original ResearchConceptsSymptoms of elevated intracranial pressureCerebrospinal fluidCentral nervous system infectionChoroid plexus cauterizationEndoscopic third ventriculostomyNervous system infectionNonsurgical treatment strategiesElevated intracranial pressureLong-term outcomesNeural tube defectsCSF-brain interfaceFetal hydrocephalusUtero treatmentAcquired hydrocephalusCSF secretionSurgical closureCSF shuntingHead circumferenceThird ventriculostomyCongenital hydrocephalusAssociated with blockageGene mutationsCerebral ventricleTreatment strategiesCSF pathwaysThe genetic basis of hydrocephalus: genes, pathways, mechanisms, and global impact
Hale A, Boudreau H, Devulapalli R, Duy P, Atchley T, Dewan M, Goolam M, Fieggen G, Spader H, Smith A, Blount J, Johnston J, Rocque B, Rozzelle C, Chong Z, Strahle J, Schiff S, Kahle K. The genetic basis of hydrocephalus: genes, pathways, mechanisms, and global impact. Fluids And Barriers Of The CNS 2024, 21: 24. PMID: 38439105, PMCID: PMC10913327, DOI: 10.1186/s12987-024-00513-z.Peer-Reviewed Original ResearchConceptsCerebrospinal fluidOverview of genesEtiology of HCPathogenesis of HCChoroid plexus cauterizationEndoscopic third ventriculostomyIncreased intracranial pressureGenetic architectureGenetic basisImpact of geneticsVentricular shuntSurgical treatmentThird ventriculostomyPhenotypic heterogeneityHeterogeneous diseasePharmacological treatmentGenetic syndromesMolecular pathogenesisIntracranial pressureHydrocephalusTherapeutic measuresGenesGeneticsBrain injuryPathway
2023
Paenibacillus spp infection among infants with postinfectious hydrocephalus in Uganda: an observational case-control study
Morton S, Hehnly C, Burgoine K, Ssentongo P, Ericson J, Kumar M, Hagmann C, Fronterre C, Smith J, Movassagh M, Streck N, Bebell L, Bazira J, Kumbakumba E, Bajunirwe F, Mulondo R, Mbabazi-Kabachelor E, Nsubuga B, Natukwatsa D, Nalule E, Magombe J, Erickson T, Ngonzi J, Ochora M, Olupot-Olupot P, Onen J, Ssenyonga P, Mugamba J, Warf B, Kulkarni A, Lane J, Whalen A, Zhang L, Sheldon K, Meier F, Kiwanuka J, Broach J, Paulson J, Schiff S. Paenibacillus spp infection among infants with postinfectious hydrocephalus in Uganda: an observational case-control study. The Lancet Microbe 2023, 4: e601-e611. PMID: 37348522, PMCID: PMC10529524, DOI: 10.1016/s2666-5247(23)00106-4.Peer-Reviewed Original ResearchConceptsMother-newborn pairsPostinfectious hydrocephalusCerebrospinal fluidNeonatal sepsisSpp infectionUgandan infantsMaternal bloodObservational case-control studyHospital OfficeInfant's cerebrospinal fluidBurden of morbidityCase-control studyRoute of infectionSubset of participantsMaternal feverCranial ultrasoundNeonatal infectionSepsis cohortOptimise treatmentTransplacental transmissionCord bloodObservational studyPlacental samplesSepsisHydrocephalusNeonatal Paenibacilliosis: Paenibacillus Infection as a Novel Cause of Sepsis in Term Neonates With High Risk of Sequelae in Uganda
Ericson J, Burgoine K, Kumbakumba E, Ochora M, Hehnly C, Bajunirwe F, Bazira J, Fronterre C, Hagmann C, Kulkarni A, Kumar M, Magombe J, Mbabazi-Kabachelor E, Morton S, Movassagh M, Mugamba J, Mulondo R, Natukwatsa D, Kaaya B, Olupot-Olupot P, Onen J, Sheldon K, Smith J, Ssentongo P, Ssenyonga P, Warf B, Wegoye E, Zhang L, Kiwanuka J, Paulson J, Broach J, Schiff S. Neonatal Paenibacilliosis: Paenibacillus Infection as a Novel Cause of Sepsis in Term Neonates With High Risk of Sequelae in Uganda. Clinical Infectious Diseases 2023, 77: 768-775. PMID: 37279589, PMCID: PMC10495130, DOI: 10.1093/cid/ciad337.Peer-Reviewed Original ResearchConceptsNeonatal sepsisPostinfectious hydrocephalusCerebrospinal fluidSigns of sepsisFull-term neonatesOptimal antibiotic treatmentUgandan referral hospitalQuantitative polymerase chain reactionNeonatal characteristicsClinical sepsisTerm neonatesUnderdiagnosed causeAntibiotic choiceMedian ageReferral hospitalUgandan hospitalNeurodevelopmental impairmentAdverse outcomesSpecimen typesAntibiotic treatmentPolymerase chain reactionClinical signsUnusual pathogensSepsisHigh risk
2022
B.3 Activated gene pathways in post-infectious hydrocephalus (PIH):: proteogenomics and the PIH expressome
Isaacs A, Morton S, Movassagh M, Zhang Q, Hehnly C, Zhang L, Morales D, Townsend R, Limbrick D, Paulson J, Schiff S. B.3 Activated gene pathways in post-infectious hydrocephalus (PIH):: proteogenomics and the PIH expressome. Canadian Journal Of Neurological Sciences / Journal Canadien Des Sciences Neurologiques 2022, 49: s5-s5. DOI: 10.1017/cjn.2022.98.Peer-Reviewed Original ResearchProteins/genesGene pathwaysDifferential expressionIntegration of proteomicsGene networksOxidative stressGene setsProteogenomicsMolecular mechanismsPaenibacillus sppMolecular identificationPost-infectious hydrocephalusGenesDNA sequencingNovel insightsPathogenetic bacteriaProteomicsRNAseqViral pathogensPathwayHost responseExpressionExpressomeCerebrospinal fluidImmune systemCytomegalovirus infections in infants in Uganda: Newborn-mother pairs, neonates with sepsis, and infants with hydrocephalus
Hehnly C, Ssentongo P, Bebell L, Burgoine K, Bazira J, Fronterre C, Kumbakumba E, Mulondo R, Mbabazi-Kabachelor E, Morton S, Ngonzi J, Ochora M, Olupot-Olupot P, Mugamba J, Onen J, Roberts D, Sheldon K, Sinnar S, Smith J, Ssenyonga P, Kiwanuka J, Paulson J, Meier F, Ericson J, Broach J, Schiff S. Cytomegalovirus infections in infants in Uganda: Newborn-mother pairs, neonates with sepsis, and infants with hydrocephalus. International Journal Of Infectious Diseases 2022, 118: 24-33. PMID: 35150915, PMCID: PMC9058984, DOI: 10.1016/j.ijid.2022.02.005.Peer-Reviewed Original ResearchConceptsNewborn-mother pairsCMV prevalenceClinical sepsisCytomegalovirus infectionCerebrospinal fluidPrevalence of CMVQuantitative PCRCMV positivityPostinfectious hydrocephalusVaginal sheddingCMV infectionHIV seropositivityNeonatal ageMaternal ageMaternal vaginalRisk factorsMedical CenterLong-term consequencesMother pairsSepsisNeonatesInfantsPrevalenceHydrocephalusCMV
2021
C.3 Activated Gene Pathways in Post-Infectious Hydrocephalus (PIH): Proteogenomics and the PIH Expressome
Isaacs A, Morton S, Movassagh M, Zhang Q, Hehnly C, Zhang L, Morales D, Townsend R, Limbrick D, Paulson J, Schiff S. C.3 Activated Gene Pathways in Post-Infectious Hydrocephalus (PIH): Proteogenomics and the PIH Expressome. Canadian Journal Of Neurological Sciences / Journal Canadien Des Sciences Neurologiques 2021, 48: s18-s19. DOI: 10.1017/cjn.2021.279.Peer-Reviewed Original ResearchProteins/genesGene pathwaysDifferential expressionIntegration of proteomicsGene networksOxidative stressGene setsProteogenomicsMolecular mechanismsPaenibacillus sppMolecular identificationPost-infectious hydrocephalusGenesDNA sequencingNovel insightsPathogenetic bacteriaProteomicsRNAseqViral pathogensPathwayHost responseExpressionExpressomeCerebrospinal fluidImmune systemNormal childhood brain growth and a universal sex and anthropomorphic relationship to cerebrospinal fluid
Peterson M, Cherukuri V, Paulson J, Ssentongo P, Kulkarni A, Warf B, Monga V, Schiff S. Normal childhood brain growth and a universal sex and anthropomorphic relationship to cerebrospinal fluid. Journal Of Neurosurgery Pediatrics 2021, 28: 458-468. PMID: 34243147, PMCID: PMC8594737, DOI: 10.3171/2021.2.peds201006.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAlgorithmsAnalysis of VarianceAnthropometryBody WeightBrainCerebrospinal FluidChildChild DevelopmentChild, PreschoolCohort StudiesFemaleFunctional LateralityHumansHydrocephalusInfantInfant, NewbornMagnetic Resonance ImagingMaleOrgan SizePopulationReference StandardsSex CharacteristicsConceptsBrain growthBrain volumeFluid accumulationRatio of brainHealthy pediatric subjectsTotal brain volumeAge 18 yearsYears of ageRegional brain volumesNormal brain growthAge-dependent relationshipCSF accumulationPediatric subjectsChildhood diseasesCerebrospinal fluidCSF volumeCongenital disorderVolume trajectoriesEarly childhoodNormative growth curvesNumerous conditionsSexMagnetic resonanceBrain size
2020
Complete Genome Sequences of the Human Pathogen Paenibacillus thiaminolyticus Mbale and Type Strain P. thiaminolyticus NRRL B-4156
Hehnly C, Zhang L, Paulson J, Almeida M, von Bredow B, Wijetunge D, Galperin M, Sheldon K, Schiff S, Broach J. Complete Genome Sequences of the Human Pathogen Paenibacillus thiaminolyticus Mbale and Type Strain P. thiaminolyticus NRRL B-4156. Microbiology Resource Announcements 2020, 9: 10.1128/mra.00181-20. PMID: 32273361, PMCID: PMC7380522, DOI: 10.1128/mra.00181-20.Peer-Reviewed Original ResearchInflammation in acquired hydrocephalus: pathogenic mechanisms and therapeutic targets
Karimy JK, Reeves BC, Damisah E, Duy PQ, Antwi P, David W, Wang K, Schiff SJ, Limbrick DD, Alper SL, Warf BC, Nedergaard M, Simard JM, Kahle KT. Inflammation in acquired hydrocephalus: pathogenic mechanisms and therapeutic targets. Nature Reviews Neurology 2020, 16: 285-296. PMID: 32152460, PMCID: PMC7375440, DOI: 10.1038/s41582-020-0321-y.Peer-Reviewed Original ResearchConceptsPosthaemorrhagic hydrocephalusPostinfectious hydrocephalusNeurosurgical disordersPathogenic mechanismsToll-like receptor 4Pathogenesis of hydrocephalusImportant protective responseEpendymal denudationCommon neurosurgical disorderSustained inflammationInflammatory mediatorsNeuroinflammatory conditionsImmune cellsReceptor 4Therapeutic approachesReparative inflammationCerebrospinal fluidCSF pathwaysHydrocephalusTherapeutic targetInflammationTherapeutic interventionsBrain ventriclesProtective responsePhysical irritants
2013
The Microbial Spectrum of Neonatal Sepsis in Uganda: Recovery of Culturable Bacteria in Mother-Infant Pairs
Kiwanuka J, Bazira J, Mwanga J, Tumusiime D, Nyesigire E, Lwanga N, Warf B, Kapur V, Poss M, Schiff S. The Microbial Spectrum of Neonatal Sepsis in Uganda: Recovery of Culturable Bacteria in Mother-Infant Pairs. PLOS ONE 2013, 8: e72775. PMID: 24013829, PMCID: PMC3754959, DOI: 10.1371/journal.pone.0072775.Peer-Reviewed Original ResearchConceptsNeonatal sepsisMother-infant pairsVaginal specimensConsecutive mother-infant pairsMicrobial spectrumSeptic newborn infantsCerebrospinal fluid culturesBacterial culture techniquesSensitive molecular approachesClinical criteriaNewborn infantsPutative causative agentFluid cultureInfant bloodMaternal bloodSepsisCerebrospinal fluidSpinal fluidInfantsBloodCausative agentMaternal transmissionEnvironmental sourcesIdentifiable bacteriaCulture techniques
1995
Quinolinic acid in tumors, hemorrhage and bacterial infections of the central nervous system in children
Heyes M, Saito K, Milstien S, Schiff S. Quinolinic acid in tumors, hemorrhage and bacterial infections of the central nervous system in children. Journal Of The Neurological Sciences 1995, 133: 112-118. PMID: 8583213, DOI: 10.1016/0022-510x(95)00164-w.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultBacterial InfectionsBiomarkersBiopterinCentral Nervous System DiseasesCentral Nervous System NeoplasmsCerebral HemorrhageChildChild, PreschoolFemaleGuanosine TriphosphateHumansHydrocephalusInfantInfant, NewbornInterleukin-6KynurenineMaleNeopterinQuinolinic AcidTryptophan OxygenaseTumor Necrosis Factor-alphaConceptsCentral nervous systemQuinolinic acidImmune activationKynurenine pathwayNervous systemBacterial infectionsLevels of QUINCentral nervous system infectionCSF QUIN levelsNervous system infectionCytokine tumor necrosisCNS inflammationNeurological deficitsSystem infectionNeurologic dysfunctionCSF levelsQUIN levelsQUIN concentrationsInterleukin-6Tumor necrosisCerebrospinal fluidNeurotoxic metabolitesSensitive markerMacrophage activationPatients
1988
Reversible Synaptic Blockade Caused by Hypoxia of Moderate Degree in Hippocampal Tissues Slices
Schiff S, Somjen G. Reversible Synaptic Blockade Caused by Hypoxia of Moderate Degree in Hippocampal Tissues Slices. Advances In Behavioral Biology 1988, 35: 175-182. DOI: 10.1007/978-1-4684-5562-5_20.Peer-Reviewed Original ResearchArtificial cerebrospinal fluidHypoxic episodesIschemic brain infarctsModerate hypoxic episodesOrthodromic population spikesReversible synaptic blockadeExcitatory postsynaptic potentialsInterstitial potassium concentrationAfferent fiber volleysHippocampal tissue slicesImpairment of membraneTissue slicesPosthypoxic hyperexcitabilityBrain infarctsSynaptic blockadePopulation spikesReadmission of oxygenFiber volleyPostsynaptic potentialsCA1 regionPyramidal cellsRat hippocampusSynaptic transmissionCerebrospinal fluidCalcium levels