2016
Calcium and 1,25-dihydroxyvitamin D3 modulate genes of immune and inflammatory pathways in the human colon: a human crossover trial 1–3
Protiva P, Pendyala S, Nelson C, Augenlicht LH, Lipkin M, Holt PR. Calcium and 1,25-dihydroxyvitamin D3 modulate genes of immune and inflammatory pathways in the human colon: a human crossover trial 1–3. American Journal Of Clinical Nutrition 2016, 103: 1224-1231. PMID: 27009752, PMCID: PMC4841933, DOI: 10.3945/ajcn.114.105304.Peer-Reviewed Original ResearchConceptsWestern-style dietCalcium supplementationInflammatory pathwaysImmune responseHuman colorectumAdequate vitamin D statusHigh dietary calcium intakeLower colorectal cancer riskClinical trial evidenceDietary calcium intakePrimary study endpointVitamin D statusColorectal cancer riskUrinary calcium concentrationD statusCalcium intakeUrinary calciumStudy endpointCrossover trialTrial evidenceBiopsy specimensColorectal mucosaTrial protocolColonic mucosaAdaptive immunity
2015
Quantification of Adequate Bowel Preparation for Screening or Surveillance Colonoscopy in Men
Clark BT, Protiva P, Nagar A, Imaeda A, Ciarleglio MM, Deng Y, Laine L. Quantification of Adequate Bowel Preparation for Screening or Surveillance Colonoscopy in Men. Gastroenterology 2015, 150: 396-405. PMID: 26439436, PMCID: PMC4728019, DOI: 10.1053/j.gastro.2015.09.041.Peer-Reviewed Original ResearchConceptsAdequate bowel preparationBBPS scoreSurveillance colonoscopyBowel preparationColon segmentsBBPS scoresSecond examinationWest Haven Veterans Affairs Medical CenterVeterans Affairs Medical CenterFirst examinationGuideline-recommended intervalsProspective observational studyDetection of adenomasIdentification of polypsColonoscopic evaluationPrimary outcomeSurveillance intervalsBlinded endoscopistsColonoscopy examinationObservational studyPrEP scaleMedical CenterInitial examinationStudy subjectsAdequate preparation
2011
Altered Folate Availability Modifies the Molecular Environment of the Human Colorectum: Implications for Colorectal Carcinogenesis
Protiva P, Mason JB, Liu Z, Hopkins ME, Nelson C, Marshall JR, Lambrecht RW, Pendyala S, Kopelovich L, Kim M, Kleinstein SH, Laird PW, Lipkin M, Holt PR. Altered Folate Availability Modifies the Molecular Environment of the Human Colorectum: Implications for Colorectal Carcinogenesis. Cancer Prevention Research 2011, 4: 530-543. PMID: 21321062, PMCID: PMC3742550, DOI: 10.1158/1940-6207.capr-10-0143.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedBiological AvailabilityCell Transformation, NeoplasticColonColorectal NeoplasmsDietary SupplementsDNA BreaksDNA MethylationFemaleFolic AcidFolic Acid DeficiencyGene ExpressionGene Expression ProfilingHumansMaleMiddle AgedOligonucleotide Array Sequence AnalysisPromoter Regions, GeneticRectumReverse Transcriptase Polymerase Chain ReactionTumor Suppressor Protein p53ConceptsFolate supplementationFolate deliveryFolate depletionImmune responseColorectal carcinogenesisDNA strand breaksHuman colonColorectal cancer riskFolic acidSupplemental folic acidLow-folate dietLow folate statusImmune response pathwaysImmune-related pathwaysFirst studyRectosigmoid biopsiesRisk volunteersPrimary endpointGene array analysisPromoter-specific DNA methylationRepletion protocolFolate dietFolate levelsSecond studyFolate status