Nobel laureate Ilya I. Metchnikoff (1845-1916). Life story and scientific heritage.

A century of science after I. Metchnikoff’s death demonstrated the truth in many of his views and judgments in the field of immunology, pathology, bacteriology, zoology and comparative embryology. Today Metchnikoff is deservedly called the father of the theory of cellular immunity, and also a harbinger of the theo­ry of natural immunity.

Staphylococcus aureus isolates from patients with Kawasaki disease express high levels of protein A.

Kawasaki disease (KD) is an acute vasculitis of young children that can be complicated by coronary artery abnormalities. Recent findings suggest that a superantigen(s) may play an important role in stimulating the immune activation associated with the disease, although the origin of this superantigen(s) is unclear. Staphylococcus aureus, isolated from the rectum or pharynx of patients with KD, secretes toxic shock syndrome toxin 1 (TSST-1).

Staphylococcus aureus isolated from Kawasaki disease patients hyper-releases extracellular protein A.

S. aureus isolates from patients with Kawasaki disease (KD) release high levels of extracellular protein A (SpA), as compared to S. aureus in other diseases.

Staphylococcal toxins and protein A differentially induce cytotoxicity and release of tumor necrosis factor-alpha from human keratinocytes.

It has been proposed that toxins and other bacterial protein products of Staphylococcus aureus can act as triggers or persistence factors in several inflammatory skin diseases. In this study, we examined the S. aureus isolates from the skin of patients with atopic dermatitis and psoriasis.

Binding of staphylococcal enterotoxin A (SEA) with human splenic lymphocytes.

1. The presence of specific binding of [125I]SEA with human splenocytes is established. 2.

Purification and characterization of some enzymatic properties of neuraminidase from Corynebacterium ulcerans.

Neuraminidase of Corynebacterium-ulcerans was purified by affinity chromatography using immobilized colominic acid preparations. Neuraminidase appears to be a thermolabile protein, molecular mass 70 000 Da. The pH optimum of 5.

A simple procedure for isolation and purification of A-type staphylococcus enterotoxin.

A new procedure is presented for the isolation and purification of A-type staphylococcus enterotoxin. Homogeneous enterotoxin preparation was obtained by purification in 2 phases. In radial double agar-gel immunodiffusion the smallest precipitating dose of the isolated and purified enterotoxin was found to be 1.

Neuraminidase activity of NAG vibrios and of some representatives of the intestinal group of bacteria.

It was studied 203 strains of NAG vibrios and 71 strains of different enterobacteria for the ability to produce neuraminidase. The most frequent neuraminidase producers were found among the strains isolated from humans (99 strain of 131). There was no correlation between neuraminidase production and other properties of the vibrios.

Highly sensitive determination of Bacillus cereus exo - enterotoxin using the method of aggregate haemagglutination.

The possibility has been demonstrated of using the method of aggregate-haemagglutination for the detection of B. cereus exo-enterotoxin in both food products and culture media. It has been established that 0.