0000000000861006

AUTHOR

Susi Zara

showing 2 related works from this author

Development and Aging Are Oxygen-Dependent and Correlate with VEGF and NOS along Life Span

2012

During development and aging, vascular remodeling represents a critical adaptive response to modifications in oxygen supply to tissues. Hypoxia inducible factor (HIF) has a crucial role and is modulated by oxygen levels, with an age-dependent response in neonates, adult, and aged people. ROS are generated under hypoxic conditions and the accumulation of free radicals during life reduces the ability of tissues to their removal. In this immunohistochemical study we investigated the presence and localization of VEGF and iNOS in human carotid bodies (CB) sampled at autopsy from three children (mean age – 2 years), four adult young subjects (mean age – 44.3 years), and four old subjects (mean ag…

AdultVascular Endothelial Growth Factor AAgingmedicine.medical_specialtyNitric Oxide Synthase Type IIAutopsyBiologyHypoxemiaNitric oxideYoung Adultchemistry.chemical_compoundAnoxiaInternal medicinemedicineHumansYoung adultChildPreschoolAgedCarotid BodyAdult; Aged; Aging; Anoxia; Carotid Body; Cell Differentiation; Child Preschool; Humans; Nitric Oxide Synthase Type II; Oxygen; Vascular Endothelial Growth Factor A; Young AdultCell DifferentiationHypoxia (medical)Oxygenmedicine.anatomical_structureEndocrinologyHypoxia-inducible factorschemistryImmunohistochemistryCarotid bodymedicine.symptom
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Selective expression of galanin in neuronal-like cells of the human carotid body

2015

The carotid body is a neural-crest-derived organ devoted to respiratory homeostasis through sensing changes in blood oxygen levels. The sensory units are the glomeruli composed of clusters of neuronal-like (type I) cells surrounded by glial-like (type II) cells. During chronic hypoxia, the carotid body shows growth, with increasing neuronal-like cell numbers. We are interested in the signals involved in the mechanisms that underlie such response, because they are not well understood and described. Considering that, in literature, galanin is involved in neurotrophic or neuroprotective role in cell proliferation and is expressed in animal carotid body, we investigated its expression in human.…

AdultGenetics and Molecular Biology (all)medicine.medical_specialtyCellGalaninNeuroprotectionBiochemistryCarotid body; Galanin; Hypoxia; Oxygen sensing; Adult; Aged; Carotid Body; Galanin; Humans; Middle Aged; Neurons; Biochemistry Genetics and Molecular Biology (all); Medicine (all)Internal medicinemedicineHumansRespiratory systemGalaninHypoxiaAgedNeuronsCarotid BodybiologyMedicine (all)Hypoxia (medical)Middle AgedOxygen sensingCell biologyEndocrinologymedicine.anatomical_structurenervous systembiology.proteinCarotid bodymedicine.symptomHomeostasisNeurotrophin
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