2022
L-ARGININE PREVENTS ISCHEMIC INJURY IN EXPLANTED RAT INTESTINAL REGIONS IN AN EX VIVO PERFUSION MODEL
Finotti M, Barahona M, Maina R, Lysyy T, Agarwal R, Schmitt P, Caturegli G, Di Renzo C, Anselmo A, Mulligan D, Geibel J, D'Amico F. L-ARGININE PREVENTS ISCHEMIC INJURY IN EXPLANTED RAT INTESTINAL REGIONS IN AN EX VIVO PERFUSION MODEL. Transplantation Reports 2022, 7: 100096. DOI: 10.1016/j.tpr.2022.100096.Peer-Reviewed Original ResearchIschemic injuryIntestinal segmentsIschemic damageIntraluminal perfusionNitric oxide-arginine pathwayMale Sprague-Dawley ratsN-nitroarginine methyl esterSprague-Dawley ratsEx vivo perfusion modelVivo perfusion modelNon-ischemic conditionsSmall intestinal segmentsFITC-inulinExtraluminal sideL-NAMEReperfusion injuryProtective effectL-arginineSmall intestinePerfusion modelInjuryIntestinal regionsFluid secretionReduced susceptibilityPerfusion
2020
Hydrogel‐based 3D bioprints repair rat small intestine injuries and integrate into native intestinal tissue
Maina RM, Barahona MJ, Geibel P, Lysyy T, Finotti M, Isaji T, Wengerter B, Mentone S, Dardik A, Geibel JP. Hydrogel‐based 3D bioprints repair rat small intestine injuries and integrate into native intestinal tissue. Journal Of Tissue Engineering And Regenerative Medicine 2020, 15: 129-138. PMID: 33197151, DOI: 10.1002/term.3157.Peer-Reviewed Original ResearchConceptsIntestinal segmentsPost-operative day 7Male Sprague-Dawley ratsMale Wistar ratsSmall intestine injurySprague-Dawley ratsNative intestineBlinded histopathological analysisIntestinal failureStool outputNative intestinal tissueIntestine injuryIntraluminal perfusionRat vascular cellsHistopathological analysisIleocecal junctionWistar ratsIntestinal integrityIntestinal tissueDay 7Small intestineGenetic malformationsNormal activityWeight gainEnterotomyPenicillin G Induces H+, K+-ATPase via a Nitric Oxide-Dependent Mechanism in the Rat Colonic Crypt
Baratta VM, Norz V, Barahona MJ, Gisinger TM, Mulligan D, Geibel JP. Penicillin G Induces H+, K+-ATPase via a Nitric Oxide-Dependent Mechanism in the Rat Colonic Crypt. Cellular Physiology And Biochemistry 2020, 54: 1132-1142. PMID: 33175479, PMCID: PMC8095381, DOI: 10.33594/000000305.Peer-Reviewed Original ResearchConceptsRat colonic cryptsColonic cryptsNitric oxideNitric oxide-dependent mechanismPotassium homeostasisArginine methyl esterAmmonium prepulse techniqueIntracellular nitric oxideSodium-free conditionsL-NAMEDiarrheal statesATPase activityBACKGROUND/Presence of NOPenicillin G sodium saltAcute exposureL-arginineSmall intestineIsolated administrationN-nitroHomeostatic conditionsCryptsPrepulse techniqueSignificant reductionNovel mechanismHuman Small Intestine Transplantation: Segmental Susceptibility to Ischemia Using Different Preservation Solutions and Conditions
Lysyy T, Finotti M, Maina RM, Morotti R, Munoz-Abraham AS, Bertacco A, Ibarra C, Barahona M, Agarwal R, D'Amico F, Rodriguez-Davalos MI, Mulligan D, Geibel J. Human Small Intestine Transplantation: Segmental Susceptibility to Ischemia Using Different Preservation Solutions and Conditions. Transplantation Proceedings 2020, 52: 2934-2940. PMID: 32768284, DOI: 10.1016/j.transproceed.2020.06.031.Peer-Reviewed Original ResearchConceptsContinuous perfusion preservationIntestinal graftIschemic damagePerfusion preservationAppropriate graft selectionCold static storageSmall intestinal graftsSmall intestine graftDifferent preservation solutionsBlinded histological evaluationCross clampIntestine graftsPostoperative complicationsDifferent time pointsIschemic injuryDeceased donorsPatient survivalGraft selectionRinger's lactateHistological evaluationBack tableVascular perfusionLuminal flushAbdominal organsSmall intestine
2019
Activation of the Calcium Sensing Receptor Decreases Secretagogue-Induced Fluid Secretion in the Rat Small Intestine
Barahona MJ, Maina RM, Lysyy T, Finotti M, Caturegli G, Baratta V, D’Amico F, Mulligan D, Geibel JP. Activation of the Calcium Sensing Receptor Decreases Secretagogue-Induced Fluid Secretion in the Rat Small Intestine. Frontiers In Physiology 2019, 10: 439. PMID: 31130866, PMCID: PMC6509940, DOI: 10.3389/fphys.2019.00439.Peer-Reviewed Original ResearchPresence of forskolinFluid secretionSmall intestineAC-265347Fluid absorptionIntestinal fluid secretionCalcium-sensing receptorSprague-Dawley ratsNew therapeutic targetsNet fluid absorptionDose-dependent mannerRat small intestineMM CaAbsence of forskolinMammalian gastrointestinal tractFluid hypersecretionDiarrheal illnessIntraluminal perfusionPotent secretagogueDawley ratsGastrointestinal tractCaSR activatorsElectrolyte balanceTherapeutic targetLuminal perfusate
2018
Activation of the Calcium Sensing Receptor (casr) Prevents Secretagogue-Induced Diarrhea in the Rat Small Intestine
Finotti M, Lysyy T, Caturegli G, Barahona M, Maina R, D'Amico F, Mulligan D, Geibel J. Activation of the Calcium Sensing Receptor (casr) Prevents Secretagogue-Induced Diarrhea in the Rat Small Intestine. Transplantation 2018, 102: s669. DOI: 10.1097/01.tp.0000543607.00911.f4.Peer-Reviewed Original ResearchOral rehydration solutionSmall intestineColon segmentsIntestinal secretionNumerous body tissuesSeverity of diarrheaDistal small intestineMale Sprague-DawleyCalcium-sensing receptorDistal portionLuminal calcium concentrationRat small intestineAbsence of forskolinCalcium perfusionProphylactic therapyAntibiotic therapyLeading causePotent secretagogueRehydration solutionSprague-DawleyElectrolyte homeostasisDiarrheaPotential treatmentSecretion profileAbsorption of fluidPrevention of Ischemic Injury in Colon and Small Intestine in an Ex Vivo Perfusion Animal Model
Finotti M, Lysyy T, Barahona M, Maina R, Caturegli G, D'Amico F, Mulligan D, Geibel J. Prevention of Ischemic Injury in Colon and Small Intestine in an Ex Vivo Perfusion Animal Model. Transplantation 2018, 102: s709. DOI: 10.1097/01.tp.0000543675.85457.d2.Peer-Reviewed Original ResearchIschemia-reperfusion injuryIschemic injuryIschemic damageL-arginineSmall intestineL-NAMEDistal colonPerfusion machineMale Sprague-Dawley ratsIntestinal ischemic damageIntestinal ischemic injuryAnti-ischemic effectsSprague-Dawley ratsIntestinal graftInflammatory injuryInflammatory pathwaysIntestinal viabilityProtective effectAbdominal cavityColon segmentsIschemic conditionsIntestinal wallIntraluminal secretionsAnimal modelsIntestine segmentsSa1180 - Activation of the Calcium Sensing Receptor (Casr) Leads to Enhanced Fluid and Electrolyte Absorption in the Rat Small Intestine
Lysyy T, Caturegli G, Finotti M, Maina R, Barahona M, D'Amico F, Mulligan D, Geibel J. Sa1180 - Activation of the Calcium Sensing Receptor (Casr) Leads to Enhanced Fluid and Electrolyte Absorption in the Rat Small Intestine. Gastroenterology 2018, 154: s-269-s-270. DOI: 10.1016/s0016-5085(18)31261-7.Peer-Reviewed Original Research
2017
Modulation of Intestinal Microbiome Prevents Intestinal Ischemic Injury
Bertacco A, Dehner CA, Caturegli G, D'Amico F, Morotti R, Rodriguez MI, Mulligan DC, Kriegel MA, Geibel JP. Modulation of Intestinal Microbiome Prevents Intestinal Ischemic Injury. Frontiers In Physiology 2017, 8: 1064. PMID: 29311987, PMCID: PMC5742259, DOI: 10.3389/fphys.2017.01064.Peer-Reviewed Original ResearchIschemic injuryIntestinal ischemiaProtective effectIntestinal ischemic injuryLight-level microscopyEosin-stained sectionsLactate administrationAntibiotic treatmentIschemic protectionIntestinal barrierLactate perfusionRat modelIntestinal microbiomeIntestinal preservationIntestinal segmentsIschemic cellsSmall intestineInert sugarsInjuryIschemiaPerfusionEpithelium morphologySecretionPerfusion deviceFITC-inulin