2025
Identification of differential epigenetic landscapes in subtypes of appendiceal cancer.
Ladel L, Tan W, Sailo B, Das P, Tyagi A, Nalbantoglu I, Sharma A, Ahuja N. Identification of differential epigenetic landscapes in subtypes of appendiceal cancer. Journal Of Clinical Oncology 2025, 43: 4199-4199. DOI: 10.1200/jco.2025.43.16_suppl.4199.Peer-Reviewed Original ResearchDifferentially Methylated RegionsAppendiceal cancerAdvanced neoplasiaColorectal cancerCpG islandsAppendiceal neoplasmsNormal tissuesMalignant subtypeGenomic dataLow-grade appendiceal mucinous neoplasmEpigenetic landscapeHeterogeneous group of malignanciesPromoter regionAnalysis of CpG islandsAppendiceal mucinous neoplasmGroup of malignanciesNon-neoplastic controlsEnzymatic methyl-seqHypermethylated CpG islandsSingle-base resolutionHypomethylated CpG islandsRare malignancyQ-value cutoffMucinous neoplasmsEpigenetic clustering
2023
Surveillance of Pancreatic Cystic Neoplasms
Chhoda A, Schmidt J, Farrell J. Surveillance of Pancreatic Cystic Neoplasms. Gastrointestinal Endoscopy Clinics Of North America 2023, 33: 613-640. PMID: 37245939, DOI: 10.1016/j.giec.2023.03.010.Peer-Reviewed Original ResearchConceptsPancreatic cystic neoplasmsAdvanced neoplasiaCystic neoplasmsIntraductal papillary mucinous neoplasmClinical surveillance guidelinesHigh-risk morphologyConsensus clinical guidelinesPapillary mucinous neoplasmAccurate preoperative diagnosisCross-sectional imagingSurgical resectionSurgical indicationsPreoperative diagnosisSurveillance guidelinesSurveillance intervalsMucinous neoplasmsMalignant potentialClinical evaluationClinical guidelinesPancreatic cystsClinical challengeSurveillance strategiesNeoplasmsNeoplasiaCurrent conceptsUtility of promoter hypermethylation in malignant risk stratification of intraductal papillary mucinous neoplasms
Chhoda A, Sharma A, Sailo B, Tang H, Ruzgar N, Tan W, Ying L, Khatri R, Narayanan A, Mane S, De Kumar B, Wood L, Iacobuzio-Donahue C, Wolfgang C, Kunstman J, Salem R, Farrell J, Ahuja N. Utility of promoter hypermethylation in malignant risk stratification of intraductal papillary mucinous neoplasms. Clinical Epigenetics 2023, 15: 28. PMID: 36803844, PMCID: PMC9942382, DOI: 10.1186/s13148-023-01429-5.Peer-Reviewed Original ResearchConceptsPapillary mucinous neoplasmMalignant risk stratificationCACNA1G geneRisk stratificationMucinous neoplasmsBiomarker panelBackgroundIntraductal papillary mucinous neoplasmIntraductal papillary mucinous neoplasmEarly detectionPrevious case-control studyHigh-grade dysplasiaCase-control studyPancreatic cancer precursorsReceiver Operating Characteristic (ROC) curve analysisSignificant diagnostic challengeCross-sectional imagingCharacteristic curve analysisOperating Characteristic curve analysisG geneHigh diagnostic specificityPrior validation studiesSignificant procedural riskIPMN tissuesSurgical resectionAdvanced neoplasia
2022
Benefit of Extended Surveillance of Low-Risk Pancreatic Cysts After 5-Year Stability: A Systematic Review and Meta-Analysis
Chhoda A, Singh S, Sheth AH, Grimshaw AA, Gunderson C, Sharma P, Kunstman JW, Sharma A, Ahuja N, Gonda TA, Farrell JJ. Benefit of Extended Surveillance of Low-Risk Pancreatic Cysts After 5-Year Stability: A Systematic Review and Meta-Analysis. Clinical Gastroenterology And Hepatology 2022, 21: 1430-1446. PMID: 35568304, DOI: 10.1016/j.cgh.2022.04.025.Peer-Reviewed Original ResearchConceptsDisease-specific mortalityAdvanced neoplasiaBD-IPMNsExtended surveillancePooled incidenceWorrisome featuresSystematic reviewIntraductal papillary mucinous neoplasmHigh-grade dysplasiaPapillary mucinous neoplasmHigh-quality studiesRandom-effects modelWarrants further investigationWeb of ScienceNeoplasia incidenceWarrants further explorationSurvival benefitCochrane LibraryMucinous neoplasmsPancreatic cancerPancreatic cystsSurveillance periodEligible studiesOvid MEDLINELower incidence
2021
Late-Stage Pancreatic Cancer Detected During High-Risk Individual Surveillance: A Systematic Review and Meta-Analysis
Chhoda A, Vodusek Z, Wattamwar K, Mukherjee E, Gunderson C, Grimshaw A, Sharma A, Ahuja N, Kastrinos F, Farrell JJ. Late-Stage Pancreatic Cancer Detected During High-Risk Individual Surveillance: A Systematic Review and Meta-Analysis. Gastroenterology 2021, 162: 786-798. PMID: 34813861, DOI: 10.1053/j.gastro.2021.11.021.Peer-Reviewed Original ResearchConceptsLate-stage PDACPancreatic ductal adenocarcinomaHigh-risk individualsHigh-grade precursorsCumulative incidenceAdvanced neoplasiaLate-stage pancreatic cancerTiming of presentationRandom-effects modelWeb of ScienceClinicoradiologic factorsClinicoradiologic featuresSurveillance imagingCochrane LibraryPancreatic cancerDuctal adenocarcinomaPancreatic morphologySurveillance studyFunnel plotLesion sitePDAC stagesSurveillance adherenceSystematic reviewMeta-analysisSignificant associationPrevalence of Advanced Colorectal Neoplasia in Veterans
Imperiale TF, Daggy JK, Imler TD, Sherer EA, Kahi CJ, Larson J, Cardwell J, Johnson CS, Ahnen DJ, Antaki F, Ashley C, Baffy G, Dominitz JA, Hou J, Korsten MA, Nagar A, Promrat K, Robertson DJ, Saini S, Shergill A, Smalley WE. Prevalence of Advanced Colorectal Neoplasia in Veterans. Journal Of Clinical Gastroenterology 2021, 55: 876-883. PMID: 34049372, DOI: 10.1097/mcg.0000000000001402.Peer-Reviewed Original ResearchConceptsAdvanced neoplasiaProximal colorectal cancerColorectal cancerVeterans Affairs Medical CenterProximal advanced neoplasiaAdvanced colorectal neoplasiaCross-sectional studyIndependent effectsHigh overall prevalenceRace/ethnicityCRC prevalenceColorectal neoplasiaCRC riskOverall prevalenceMedical CenterDiagnostic subgroupsLogistic regressionPrevalenceAgeVeteransWomenColonoscopyNeoplasiaRiskAdvanced findings
2017
KRAS and BRAF somatic mutations in colonic polyps and the risk of metachronous neoplasia
Juárez M, Egoavil C, Rodríguez-Soler M, Hernández-Illán E, Guarinos C, García-Martínez A, Alenda C, Giner-Calabuig M, Murcia O, Mangas C, Payá A, Aparicio JR, Ruiz FA, Martínez J, Casellas JA, Soto JL, Zapater P, Jover R. KRAS and BRAF somatic mutations in colonic polyps and the risk of metachronous neoplasia. PLOS ONE 2017, 12: e0184937. PMID: 28953955, PMCID: PMC5617162, DOI: 10.1371/journal.pone.0184937.Peer-Reviewed Original ResearchConceptsAdvanced adenomasKRAS mutationsColonic polypsAdvanced neoplasiaAdvanced polypsMetachronous advanced neoplasiaHigh-grade dysplasiaSomatic KRAS mutationsBRAF somatic mutationsMetachronous neoplasiaSurveillance colonoscopyPathologic characteristicsSplenic flexureGrade dysplasiaVillous componentUnivariate analysisSerrated polypsRisk featuresSomatic BRAFMultivariate analysisAdenomasAbstractTextPolypsPatientsNeoplasia
2016
Detection of Advanced Neoplasia in Pancreatic Cysts by Assay of Novel DNA Methylation Markers in Cyst Fluid: A Multicenter Pilot Study: 2016 ACG Fellows-In-Training Award (Biliary/Pancreas Category)
Majumder S, Taylor W, Yab T, Berger C, Mahoney D, Aslanian H, Farrell J, Fisher W, Rothberg B, Salem R, Simeone D, Van Buren G, Raimondo M, Chari S, Kisiel J, Topazian M, Ahlquist D. Detection of Advanced Neoplasia in Pancreatic Cysts by Assay of Novel DNA Methylation Markers in Cyst Fluid: A Multicenter Pilot Study: 2016 ACG Fellows-In-Training Award (Biliary/Pancreas Category). The American Journal Of Gastroenterology 2016, 111: s1. DOI: 10.14309/00000434-201610001-00002.Peer-Reviewed Original Research
2011
Aberrant crypt foci as predictors of colorectal neoplasia on repeat colonoscopy
Anderson JC, Swede H, Rustagi T, Protiva P, Pleau D, Brenner BM, Rajan TV, Heinen CD, Levine JB, Rosenberg DW. Aberrant crypt foci as predictors of colorectal neoplasia on repeat colonoscopy. Cancer Causes & Control 2011, 23: 355-361. PMID: 22187142, DOI: 10.1007/s10552-011-9884-7.Peer-Reviewed Original ResearchConceptsACF countRepeat colonoscopyColorectal neoplasiaFamily historyPrevious adenomaSurveillance colonoscopyColorectal cancerClinical surveillance guidelinesFuture advanced neoplasiaAdvanced colorectal neoplasiaAberrant crypt fociSections of colonACF frequencyConclusionsIncreased numberDistal colorectumPrior adenomasBaseline examinationSmoking historyAdvanced neoplasiaACF numberSub analysisSurveillance guidelinesSurveillance examsCrypt fociMAIN OUTCOME
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