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U1 snRNP
HRES-1 antibodies and, in SLE and overlap syndromes, 1660
polypeptide antibodies, anti-U1 RNA antibodies in connective tissue disease and, 1837
U1-A RNP, T cell epitope mapping of, 1170
Ulcerating lesions, erythematous, in cutaneous PAN associated with Crohn's disease and atrial myxoma, 1161
Ulcers
ear, in discoid LE, 1712
NSAID, gastrointestinal tract and, 5
Ultrasonography
of finger tendons in RA, 786
of joints and connective tissue, 737
Ultraviolet absorption spectroscopy, to study elastin and collagen degradation in SSc, 517
Umbilical vein
endothelial cells, in Lyme borreliosis, 565
nitric oxide and lipoxin A4 in polymorphonuclear vascular cytoxicity and, 768
Undifferentiated connective tissue disease, HLA type and, 259
Undifferentiated seronegative oligoarthropathy, Chlamydia DNA in, 1005
Undifferentiated spondylarthropathy, pathogenesis of, 1547
Unilateral joint involvement, in pediatric Lyme arthritis in Europe, 361
Unilateral reactive arthritis, joint and connective tissue ultrasonography in, 736
University of Pittsburgh Lupus Databank, in incidence of SLE, 1260
Unproven remedies, Chinese herbal medications, 614
Upper extremities
cardiovascular fitness in end-stage OA and, 799
in juvenile AS, 835
Upper respiratory tract involvement, autoimmunity and, 301
Urate, pseudoseptic inflammatory knee effusion in sickle cell disease and, 284
Ureaplasma urealyticum destructive septic polyarthritis, common variable immunodeficiency in, 1524
Urease, in pathogenesis of spondylarthropathies, 1547
Urinary deoxypyridinoline, steroids, hormone replacement and bone metabolism in postmenopausal women with, 902
Urinary hydroxyproline, tiludronate, etidronate and, in Paget's disease of bone, 851
Urinary protein excretion, after tenidap and piroxicam in RA, 29
Urinary pyridinolone, bone turnover, bone mass and, after estrogen, 292
Urine
brown, after hydroxychloroquine in SLE, 440
elastin and collagen in, in SSc, 517
Urticaria, in hydatid disease in chronic monarthritis, 1338
Uterus, in bone marrow transplantation in antiphospholipid syndrome, 115
Uveitis, acute anterior, HLA-DR8 and, in AS, 547