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Table 2 Clinical and immunological characteristics of the 16 patients with PID in our series

From: Primary complement and antibody deficiencies in autoimmune rheumatologic diseases with juvenile onset: a prospective study at two centers

  

PID

Autoimmune disease with clinical and laboratory features

Age at AID onset

Duration of follow up (years)

Autoantibody profile

Infectious events indicative of PID

Associated conditions and complications

1

F

SIgAD

SLE/scleroderma overlap syndrome

5 for LS 16 for SLE

24

ANAs

Urinary tract infections

Raynaud phenomena, generalized morphea, lupus nephritis, microangiopathic haemolytic anaemia, secondary antiphospholipidic syndrome, systemic arterial hypertension, diffuse interstitial pulmonary fibrosis, pulmonary hypertension

dsDNA

Pneumonias from an early age

Sm, RNP, Histone

Nucleosome

2

F

SIgAD

SLE associated with autoimmune hepatitis type 1

16

2

ANAs, Sm, U1 RNP

Urinary tract infections prior to AID diagnosis

lupus malar rash, photosensitivity, synovitis, lymphopenia, low complement

Ribosomal P protein

Nucleosome, ACA, ASMA

3

F

SIgAD

Systemic-onset JIA: polyarticular course, chronic bilateral iridocyclitis with bilateral cataract formation and band keratopathy, loss of vision

0.7

16

ANAsa

No

4

F

SIgAD

MCTD: polyarthritis, livedo reticularis, Raynau d’s phenomenon, alopecia, Gottron’s papules, rash of dermatomyositis, one psychotic episo de, aseptic necrosis of the hip, direct Coombs ’s test, intermittent low C3 Allergic Asthma

14

13

ANAs,

Esophageal candidiasis after AID therapy

dsDNA

U1 RNP

Urinary tract infections prior to AID diagnosis

ANCAs

5

M

SIgAD

Undifferentiated JIA: oligoarthritis, positive RF Allergic Asthma

9

1.5

No

No

6

F

Unclassified hypogammaglobulinaemia Complete C4BD

Systemic vasculitis (ANCA negative): fever, myalgia, a rthralgia, livedo reticularis, maculopapular rash, III and VI cranial nerve palsy, transient ischemic attack, haemorrhagic stroke with right hemiparesis, thrombocytopenia, nodular regenerative hyperplasia of the liver, splenomegaly, growth retardation

2.5

4

No

Pneumonias prior to AID diagnosis

7

F

Unclassified hypogammaglobulinaemia

Systemic vasculitis (ANCA negative): fever, myalgia, livedo reticularis, cutaneous nodules, systemic arterial hypertension, abdominal recurrent pain, massive intestinal bleeding; bicuspid aortic valve disease with aortic valve insufficiency

6.5

2

No

Severe Epstein-Barr virus-induced acute infectious mononucleosis at the age of 3

8

F

Homozygous C2D

SLE: photosensitive lupus rash, oral ulcers, synovitis, perniosis, serum high CIC levels

12

2.5

ANAs

No

SS-A, Ro 52

9

F

Heterozygous C2 D

SLE: malar rash, synovitis, lupus nephritis, thrombocytopenia, leukopenia, hemolytic anemia, low serum C3 and C4 levels, serum high CIC levels, renal transplantation

12

2.5

ANAsb

No

dsDNA

10

M

Heterozygous C2 D

Seronegative polyarticular JIA, Bronchogenic cyst with surgical resection in infancy

8

11

ANAs in low titersb

No

11

F

Complete C4B deficiency

SLE: lupus nephritis, polisynovitis, photosensitive lupus rash, low serum C3 and C4 levels, serum high CIC levels, secondary antiphospholipidic syndrome

12

1.5

ANAs, dsDNA, Histone, pANCA

No

ACA, β2 GP

12

F

Complete C4B deficiency

Systemic-onset JIA: fever, polyarthritis, evanescent rash, myalgias

7

9

No

No

13

F

Complete C4B deficiency

Oligoarticular JIA

1.5

0.5

No

No

14

F

Partial C4A deficiency

SLE: Raynaud phenomena, lupus nephritis, systemic arterial hypertension, secondary vasculitis, synovitis, livedo reticularis, pericarditis, secondary antiphospholipidic syndrome, low serum C3 and C4 levels

10

30

ANAs, Ro (SS-A)

Pulmonary tuberculosis at 35 years old

dsDNA, pANCA

ACA- IgG

15

F

Partial C4A deficiency

SLE associated with autoimmune hepatitis type 1: fever, synovitis, lupus malar rash, oral ulcers, serositis, haemolytic anaemia, secondary cutaneous vasculitis, Libman-Sacks endocarditis

15

5

ASMA, ACA, ANAs§

Pulmonary tuberculosis at 15 years old

16

F

Partial C4A deficiency

Undifferentiated JIA: oligoarthritis, positive RF, bilateral chronic iridocyclitis with loss of vision

7.3

3

ANAs§

No

  1. AIH autoimmune hepatitis, ACA anti-cardiolipin antibodies, ANAs antinuclear antibodies, C4D C4 deficiency, C2D C2 deficiency; CVID common variable immunodeficiency, dsDNA antibodies to double stranded DNA, F female, Ig Immunoglobulin, JIA Juvenile Idiopathic Arthritis, LS localized scleroderma, M male, MCTD mixed connective tissue disease, RF rheumatoid factor, SIgAD selective IgA deficiency, SLE systemic lupus erythematosus, β2 GP anti-β2-glycoprotein I antibodies
  2. aNegative ANA profile test (immunoblot), despite high titers of ANAs on indirect immunofluorescence (1/1280; homogeneous pattern)
  3. bANAs profile not available