This thesis describes studies of individuals with systemic lupus erythematosus (SLE) presenting with neuropsychiatric (NP) symptoms at the Leiden NPSLE clinic. A diverse range of studies, including... Show moreThis thesis describes studies of individuals with systemic lupus erythematosus (SLE) presenting with neuropsychiatric (NP) symptoms at the Leiden NPSLE clinic. A diverse range of studies, including laboratory, radiological, clinical and patient´s reported outcomes are presented.The Leiden NPSLE clinic is a tertiary referral center for patients with SLE and neuropsychiatric (NP) symptoms. In the NPSLE clinic, patients are assessed by a multidisciplinary team. Thereafter, clinical, radiological and laboratory measures are weighed in a consensus meeting to correctly attribute the NP symptoms: related to lupus activity (NPSLE) or not. This extensive and standardized assessment of NPSLE, a rare and heterogenous disease lacking a gold standard, is unique and creates the opportunity to explore many aspects of NPSLE in well-defined phenotypes.In the first part of this thesis, we evaluate both classification and treatment of patients withSLE and NP symptoms. The second part of this thesis focuses on a diverse range of clinicaloutcomes of NPSLE, including both morbidity and mortality. The last part of this thesisassesses potential biomarkers for (specific manifestations of) NPSLE. Show less
Current evidence on older adults is derived from population-based cohort studies and randomized controlled trials, which may not include frail individuals. Data are lacking on older outpatients, a... Show moreCurrent evidence on older adults is derived from population-based cohort studies and randomized controlled trials, which may not include frail individuals. Data are lacking on older outpatients, a potentially diverse population. Therefore, we initiated the Milan Geriatrics 75+ Cohort Study, a prospective hospital-based outpatient cohort study. Chapter 1 of this thesis provides a background on the controversies regarding the homeostasis of older adults. Chapter 2, 3 and 4 report findings from the Milan Geriatrics 75+ Cohort Study. Chapter 2 explores the association between blood pressure and cognition, and whether it varies according to age and functional status. Chapter 3 examines the relationship between blood pressure and mortality risk, and whether it varies according to functional and cognitive status. Chapter 4 investigates the association between thyroid status and mortality risk in euthyroid older adults, and whether it differs by sex and age. Chapter 5 and 6 report findings from the PROSPER cohort, which includes older adults at high cardiovascular risk. Chapter 5 presents new evidence on the association of heart rate and heart rate variability with functional decline. Chapter 6 analyses the relationship between blood pressure variability and functional decline. Chapter 7 summarises and discusses the main findings of this thesis. Show less
