0000000000466810

AUTHOR

Ryan Park

showing 2 related works from this author

A Periodic Diet that Mimics Fasting Promotes Multi-System Regeneration, Enhanced Cognitive Performance, and Healthspan

2015

SummaryProlonged fasting (PF) promotes stress resistance, but its effects on longevity are poorly understood. We show that alternating PF and nutrient-rich medium extended yeast lifespan independently of established pro-longevity genes. In mice, 4 days of a diet that mimics fasting (FMD), developed to minimize the burden of PF, decreased the size of multiple organs/systems, an effect followed upon re-feeding by an elevated number of progenitor and stem cells and regeneration. Bi-monthly FMD cycles started at middle age extended longevity, lowered visceral fat, reduced cancer incidence and skin lesions, rejuvenated the immune system, and retarded bone mineral density loss. In old mice, FMD c…

MaleAbdominal Fat; Adult; Aged; Aging; Animals; Body Weight; Cardiovascular Diseases; Diet; Female; Humans; Male; Mice; Mice Inbred C57BL; Middle Aged; Neoplasms; Neurogenesis; Pilot Projects; Psychomotor Performance; Regeneration; Saccharomyces cerevisiae; Young Adult; Cognition; Fasting; LongevityAgingPhysiologyPilot ProjectsMiceCognitionNeoplasmsCardiovascular DiseaseSettore MED/49 - Scienze Tecniche Dietetiche Applicatemedia_common2. Zero hungerNeurogenesisLongevityFastingMiddle Aged3. Good healthCardiovascular DiseasesFemaleStem cellHumanAdultmedicine.medical_specialtyNeurogenesismedia_common.quotation_subjectLongevityAbdominal FatSaccharomyces cerevisiaeBiologyArticleYoung AdultImmune systemInternal medicineDiabetes mellitusmedicineAnimalsHumansRegenerationPilot ProjectAdverse effectCell Biology; Molecular Biology; PhysiologyMolecular BiologyAgedAnimalBody WeightCell Biologymedicine.diseaseMiddle ageDietMice Inbred C57BLEndocrinologyCancer cellNeoplasmNeurogenesiPsychomotor Performance
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Lentiviral transduction of face and limb flaps: implications for immunomodulation of vascularized composite allografts.

2012

Background Ex vivo introduction of an immunomodulatory transgene into a face or hand allograft may improve the risk-to-benefit ratio of vascularized composite allografts. Abrogation of the immunogenicity of the skin component of a face or hand allograft may decrease alloreactivity and permit the induction of immunologic tolerance. Proof-of-principle demonstrations of transduction of composite tissue have been established using adenoviral vectors, producing transient gene expression. The authors hypothesized that transduction, integration, and long-term expression of transgenes in a vascularized composite allograft could be achieved using lentiviral vectors. Methods Ex vivo transduction of h…

Reporter genePathologymedicine.medical_specialtybusiness.industryTransgeneLentivirusGene Transfer TechniquesExtremitiesTransfectionCell sortingSurgical FlapsViral vectorRatsImmunomodulationTransduction (genetics)Transduction GeneticFaceCancer researchMedicineAnimalsHumansSurgeryIntradermal injectionbusinessEx vivoPlastic and reconstructive surgery
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