0000000000241077

AUTHOR

Karen A. Massey

showing 2 related works from this author

High pancreatic n-3 fatty acids prevent STZ-induced diabetes in fat-1 mice: inflammatory pathway inhibition.

2011

OBJECTIVE Because of confounding factors, the effects of dietary n-3 polyunsaturated fatty acids (PUFA) on type 1 diabetes remain to be clarified. We therefore evaluated whether fat-1 transgenic mice, a well-controlled experimental model endogenously synthesizing n-3 PUFA, were protected against streptozotocin (STZ)-induced diabetes. We then aimed to elucidate the in vivo response at the pancreatic level. RESEARCH DESIGN AND METHODS β-Cell destruction was produced by multiple low-doses STZ (MLD-STZ). Blood glucose level, plasma insulin level, and plasma lipid analysis were then performed. Pancreatic mRNA expression of cytokines, the monocyte chemoattractant protein, and GLUT2 were evaluate…

Blood GlucoseFatty Acid DesaturasesMalemedicine.medical_specialtyEndocrinology Diabetes and Metabolismmedicine.medical_treatmentBlotting WesternMice TransgenicBiologyProinflammatory cytokineDiabetes Mellitus Experimentalchemistry.chemical_compoundMiceInternal medicineFatty Acids Omega-3Internal MedicinemedicineAnimalsInsulinCaenorhabditis elegans ProteinsUnsaturated fatty acidLipoxinReverse Transcriptase Polymerase Chain ReactionInsulinTranscription Factor RelAStreptozotocinImmunohistochemistryLipidsNitric oxide synthasemedicine.anatomical_structureEndocrinologyMetabolismchemistryHyperglycemiabiology.proteinGLUT2FemalePancreasmedicine.drugSignal TransductionDiabetes
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Inhibition of the HER2 pathway by n-3 polyunsaturated fatty acids prevents breast cancer in fat-1 transgenic mice

2013

Overexpression of the tyrosine kinase receptor, ErbB2/HER2/Neu, occurs in 25–30% of invasive breast cancer (BC) with poor patient prognosis. Due to confounding factors, inconsistencies still remain regarding the protective effects of n-3 polyunsaturated fatty acids (PUFAs) on BC. We therefore evaluated whether fat-1 transgenic mice, endogenously synthesizing n-3 PUFAs from n-6 PUFAs, were protected against BC development, and we then aimed to study in vivo a mechanism potentially involved in such protection. E0771 BC cells were implanted into fat-1 and wild-type (WT) mice. After tumorigenesis examination, we analyzed the expression of proteins involved in the HER2 signaling pathway and lipi…

Genetically modified mouseFatty Acid DesaturasesDocosahexaenoic AcidsReceptor ErbB-3Receptor ErbB-2Breast NeoplasmsMice TransgenicQD415-436Biologymedicine.disease_causexenograft preventionBiochemistryReceptor tyrosine kinaseProto-Oncogene Proteins c-mycMiceEndocrinologyDownregulation and upregulationCell Line TumorFatty Acids Omega-3medicineAnimalsHumansCaenorhabditis elegans ProteinsResearch ArticlesCell Proliferationchemistry.chemical_classificationCell growthCell BiologyXenograft Model Antitumor AssaysGene Expression Regulation NeoplasticMice Inbred C57BLchemistryDocosahexaenoic acidImmunologyn-3 tissue enrichmentbiology.proteinCancer researchFemaleSignal transductionCarcinogenesispolyunsaturated fatty acid-derived mediatorsPolyunsaturated fatty acidSignal TransductionJournal of Lipid Research
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