Vasoconstriction accompanied by changes in skin color is a normal physiologic response to
cold. The distinction between this normal physiology and Raynaud's phenomenon (RP) has …

Objective Twin concordance data for rheumatoid arthritis (RA) on their own provide only
limited insight into the relative genetic and environmental contribution to the disease. We …

Objective. To test the hypothesis that cigarette smoking is associated with susceptibility to
rheumatoid arthritis (RA) by comparing smoking history between twins with RA and their …

Objective To assess genetic and environmental influences on low back and neck pain in a
classic twin design and to examine the extent to which these are explained by structural …

Objective To examine the genetic and environmental influences on the known association
between body mass index (BMI) and knee osteoarthritis (OA), using adult twin data. Methods …

Rheumatoid arthritis (RA) is a highly heritable complex disease with unknown etiology. Multi-
ancestry genetic research of RA promises to improve power to detect genetic signals, fine …

Objective To assess the genetic contribution to radiographic hip osteoarthritis (OA) by
measuring the distribution of disease features in monozygotic (MZ) and dizygotic (DZ) twins …

Objective Schmorl's nodes (SN) are common, but little is known of their relationship with
degenerative change and back pain or genetic and environmental factors influencing their …

Reduced gut microbiome diversity is associated with multiple disorders including metabolic
syndrome (MetS) features, though metabolomic markers have not been investigated. Our …

Objective To estimate the genetic influence on joint hypermobility in an unselected
population using a classic twin study design. Methods A self‐report questionnaire on joint …