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Retinal microcirculation was imaged by a Retinal Vessel Analyzer. PHPT patients also underwent bone mineral density measurements and kidney ultrasound. PHPT patients had higher mean calcium and parathyroid hormone values compared to controls. Evaluating macro-vascular compartment, we found higher values of 24 hours-systolic, diastolic blood pressure, aortic pulse wave velocity (aPWV) and aortic augmentation index (Aix) in hypertensive PHPT, but not in normotensive PHPT compared to controls. The eye examination showed narrowing arterial and venular diameters of retinal vessels in both hypertensive and normotensive PHPT compared to controls. In hypertensive PHPT, 24\u2009hours systolic blood pressure was associated only with parathyroid hormone (PTH) levels (beta\u2009=\u20090.36, p\u2009=\u20090.04). aPWV was associated with retinal diameter (beta\u2009=\u2009\u22120.69, p\u2009=\u20090.003), but not with PTH. Retinal artery diameter was associated with PTH (beta\u2009=\u2009\u22120.6, p\u2009=\u20090.008). In the normotensive PHPT, only PTH was associated with retinal artery diameter (beta\u2009=\u2009\u22120.60, p\u2009=\u20090.01) and aortic AIx (beta\u2009=\u20090.65, p\u2009=\u20090.02). In conclusion, we found macro-vascular impairment in PHPT and that micro-vascular impairment is negatively associated with PTH, regardless of hypertension in PHPT.<\/jats:p>","DOI":"10.1038\/s41598-018-35017-y","type":"journal-article","created":{"date-parts":[[2018,11,2]],"date-time":"2018-11-02T11:02:02Z","timestamp":1541156522000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Retinal micro-vascular and aortic macro-vascular changes in postmenopausal women with primary hyperparathyroidism"],"prefix":"10.1038","volume":"8","author":[{"given":"Jessica","family":"Pepe","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0141-1202","authenticated-orcid":false,"given":"Cristiana","family":"Cipriani","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Massimiliano","family":"Tedeschi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mario","family":"Curione","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mariacristina","family":"Parravano","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Monica","family":"Varano","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Federica","family":"Biamonte","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luciano","family":"Colangelo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6525-0439","authenticated-orcid":false,"given":"Salvatore","family":"Minisola","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2018,11,8]]},"reference":[{"key":"35017_CR1","doi-asserted-by":"publisher","first-page":"297","DOI":"10.1530\/EJE-17-0485","volume":"177","author":"J Pepe","year":"2017","unstructured":"Pepe, J. et al. 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