2013
Effect of NSAIDs on Na+/H+ exchanger activity in rat colonic crypts
Roginiel AC, Kohut DL, Kaur S, Saleh AM, Weber T, Geibel P, Singh H, Geibel JP. Effect of NSAIDs on Na+/H+ exchanger activity in rat colonic crypts. American Journal Of Physiology - Cell Physiology 2013, 305: c512-c518. PMID: 23739181, DOI: 10.1152/ajpcell.00303.2012.Peer-Reviewed Original ResearchConceptsRat colonic cryptsExchanger activityNonsteroidal anti-inflammatory drugsUpper GI injuryColonic cryptsLower GI bleedingUse of NSAIDsChronic inflammatory stateLower GI tractUse of suppositoriesEffects of NSAIDsAnti-inflammatory drugsGI injuryNSAIDs aspirinGI bleedingPain reliefRheumatoid diseaseEpithelial erosionsInflammatory stateMyocardial infarctionChronic conditionsMucosal barrierUlcer formationColonic tissueGastrointestinal tract
2011
The Anion Exchanger Pendrin (SLC26A4) and Renal Acid-base Homeostasis
Wagner CA, Mohebbi N, Capasso G, Geibel JP. The Anion Exchanger Pendrin (SLC26A4) and Renal Acid-base Homeostasis. Cellular Physiology And Biochemistry 2011, 28: 497-504. PMID: 22116363, DOI: 10.1159/000335111.Peer-Reviewed Original ResearchConceptsAcid-base homeostasisAnion exchanger pendrinExchanger pendrinRenal acid-base homeostasisDietary electrolyte intakeSystemic acid-base statusRole of pendrinType BNormal acid-base homeostasisRegulation of pendrinAcid-base statusRenal expressionAngiotensin IIKidney's roleElectrolyte intakePendrin expressionPositive cellsExchanger activityGenetic ablationAdult kidneyPendrinExpressing cellsLuminal poleKidneyHomeostasis
2006
Somatostatin modulates PI3K-Akt, eNOS and NHE activity in the ciliary epithelium
Ghosh S, Choritz L, Geibel J, Coca-Prados M. Somatostatin modulates PI3K-Akt, eNOS and NHE activity in the ciliary epithelium. Molecular And Cellular Endocrinology 2006, 253: 63-75. PMID: 16764985, DOI: 10.1016/j.mce.2006.05.002.Peer-Reviewed Original ResearchConceptsP-Akt Ser473Ciliary epitheliumIntracellular cyclic GMP productionInvolvement of somatostatinDose-dependent attenuationReceptor mRNA expressionCyclic GMP productionSST-like immunoreactivityLack of responseOcular ciliary epitheliumAqueous humorSomatostatinNHE activityExchanger activityMRNA expressionCiliary processesNeuroendocrine cellsPC2 antibodyPI3K-AktMultiple intracellularGMP productionConvertases PC1Increases phosphorylationTissue extractsEpithelium
2004
Inhibition of NHE-1 Na+/H+ exchanger by natriuretic peptides in ocular nonpigmented ciliary epithelium
Fidzinski P, Salvador-Silva M, Choritz L, Geibel J, Coca-Prados M. Inhibition of NHE-1 Na+/H+ exchanger by natriuretic peptides in ocular nonpigmented ciliary epithelium. American Journal Of Physiology - Cell Physiology 2004, 287: c655-c663. PMID: 15140751, DOI: 10.1152/ajpcell.00552.2003.Peer-Reviewed Original ResearchConceptsC-type natriuretic peptideAtrial natriuretic peptideBrain natriuretic peptideNatriuretic peptideIntraocular pressureCiliary epitheliumNHE activityNatriuretic peptides atrial natriuretic peptideInhibitory effectType B receptorsNHE-1 activityNonpigmented ciliary epitheliumCell layerGap junction blockersDose-dependent mannerInhibitors of NHEOcular ciliary epitheliumRate of intracellularHypotensive effectJunction blockersTrabecular meshworkMammalian eyeExchanger activityB receptorNHE-1