Table 1

Risk factors for the major rheumatic diseases over the past 10 years

Disease
Host/Environmental risk factor
Gene

Rheumatoid arthritis
Diet (caffeine and Mediterranean diet)
PTPN22

Smoking
PADI4

Hormones
CTLA4


FCRL3


MHC2A


HLA DRB1
Juvenile idiopathic arthritis

Macrophage inhibitory factor (MIF)


PTPN22


NRAMP1


IL-6
Psoriatic arthritis
Rubella vaccination
CARD15

Injury requiring medical consultation
MICA

Recurrent oral ulcers
TNF

Moving house
IL

Corticosteroids


Pregnancy

Ankylosing spondylitis

ARTS1


IL-23R


IL-1 gene cluster


Cytochrome P450 2D6 (CYP2D6) gene
Systemic lupus erythematosus
Breast-feeding
MHC

Early natural menopause
ITGAM

Lipstick
IRF5


BLK


STAT4


PTPN22


FCGR2A
Scleroderma
Exposure to silica or organic solvents
Familial risk


HLA-DQA1


Fibrillin-1 SNP haplotypes


TGF-β


CTGF


Foetal microchimerism
Osteoarthritis
Obesity/Body mass index
IL-1 gene cluster

Physical activity
Frizzled-related protein-3 (FRZB) gene

Grip strength
Matrilin-3 gene

Previous injury
IL-4 receptor


Metalloproteinase gene ADAM12


Asporin (ASPN) gene


Estrogen receptor
Gout
High purine diet
TNF-α promoter

Dairy products


Hypertension


Pharmacologic agents

Fibromyalgia and chronic widespread pain
Physical trauma
Serotonin transporter gene

Somatisation
Familial risk

Health-seeking behaviour
COMT

Poor sleep


ADAM12, a disintegrin and metalloproteinase domain 12; ARTS1, type 1 tumor necrosis factor receptor shedding aminopeptidase regulator; BLK, B lymphoid tyrosine kinase; CARD15, caspase recruitment domain 15; COMT, catechol-O-methyltransferase; CTGF, connective tissue growth factor; CTLA4, cytotoxic T lymphocyte-associated antigen-4; FCGR2A, Fc fragment of IgG, low-affinity IIA, receptor (CD32); FCRL3, Fc-receptor like-3; IL, interleukin; IRF5, interferon regulatory factor 5; ITGAM, integrin, alpha M; MHC, major histocompatibility complex; MHC2A, major histocompatibility complex 2A; MICA, class I major histocompatibility complex chain-related gene A; NRAMP1, natural-resistance-associated macrophage protein 1; PADI4, peptidyl arginine; PTPN22, protein tyrosine phosphatase; SNP, single-nucleotide polymorphism; STAT4, signal transducer and activator of transcription 4; TGF-β, transforming growth factor-beta; TNF, tumour necrosis factor.

Oliver and Silman Arthritis Research & Therapy 2009 11:223   doi:10.1186/ar2585