In social animals, group efficiency is often assumed to increase with task differentiation, but this requires that individuals are better than generalists at the task they specialize in. A new study finds that individual Anelosimus studiosus spiders do predominantly perform the task they excel at, in line with their individual personality type, when they are placed in groups.

OBJECTIVES To evaluate treatment with the peptide-based agent, Lupuzor, in a double-blind, randomised, placebo-controlled study of patients with systemic lupus erythematosus. METHODS Patients who met ≥4 of the American College of Rheumatology criteria, had a score of ≥6 on the Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) and did not have an A score on the British Isles...

A 43-year-old woman presented with erythematous papules and plaques on the forehead evolving in the previous 3 months (Fig. 1). Diascopy, by showing a yellowish nodule-like aspect (Fig. 2), raised the hypothesis of cutaneous sarcoidosis, which was confirmed by histopathological examination. Sarcoidosis is a multisystemic granulomatous disease, a histologically evident characteristic shared by i...

Annular erythema (AE) associated with anti-Ro (SSA) and/or La (SSB) autoantibody in patients with Sjögren syndrome (SS) or with SS/systemic lupus erythematosus overlap syndrome (SS/SLE), has recently been described in Orientals, and it may be a counterpart of annular skin lesion of the subacute cutaneous LE seen mostly in Caucasians. The author examined five Korean AE patients in respect to din...

The lupus anticoagulant was found in the plasma of 31 of 60 patients with systemic lupus erythematosus and other connective tissue disorders (mixed connective tissue disease, systemic vasculitis, polyarteritis nodosa, primary sicca syndrome, discoid lupus, Behcet's syndrome, and systemic sclerosis). Strong associations were found with biological false positive seroreaction for syphilis and thro...

Discoid lupus erythematosus (DLE) is the most common form of chronic cutaneous lupus erythematosus. It tends to heal with scarring, hair loss, and pigmentary changes if treatment is not initiated in the early phase of the disease. Classic DLE lesions are initially red-purple macules, papules, or small plaques that rapidly acquire a hyperkeratotic appearance. Only a minority of patients with DLE...

Angioedema secondary to C1 inhibitor deficiency has been rarely reported to be associated with systemic lupus erythematosus. A genetic defect of C1 inhibitor produces hereditary angioedema, which is usually presented with cutaneous painless edema, but edema of the genital area, gastrointestinal and laryngeal tracts have also been reported.In lupus patients, angioedema may be the result of an ac...

Palpable migratory arciform erythema is an entity of unknown etiology, with few published cases in the literature. The clinical and histopathological features of this disease are difficult to be distinguished from those of Jessner's lymphocytic infiltration of the skin, lupus erythematous tumidus and the deep erythema annulare centrifugum. We describe here the first two Brazilian cases of palpa...