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Biomedical subjects

A Yaretzky

Publications and source records attributed to A Yaretzky.

At least 19 recordsLinked to original sources
PubMed1991

[Falls in elderly patients in an institution].

Falls among the elderly are a major concern of those caring for them. We studied the incidence of falls in institutionalized elderly, as well as the characteristics of those who fell and the causes of the falls, to determine how to prevent falling. A 2-month survey was conducted in Mishan, an institution in Raanana, and included 144 falls in 108 patients (447 women and 162 men, mean age 84) out of a total of 609 elderly. The prevalence of falls was 1426 per 1000 per year. Most cases of falls were first seen in the emergency room or wards for demented patients. The prevalence of falls among those receiving physiotherapy was only 1/3 that of those who did not. Old institutionalized patients tend to fall mainly while getting in and out of bed. Falls may result from medication such as sleeping pills and psychotropic drugs, but not diuretics. Falls are not inevitable, and measures can be applied to prevent them and thus reduce their frequency.

Accidental Falls↗
PubMed1986

T lymphocytes of rheumatoid arthritis patients show augmented reactivity to a fraction of mycobacteria cross-reactive with cartilage.

An acetone-precipitable fraction of Mycobacterium tuberculosis cross-reacts with human cartilage. Immune responses to this antigen were assessed in 34 patients with rheumatoid arthritis, 16 patients with degenerative joint disease, and 15 healthy controls. The RA patients differed from the other two groups in having more pronounced T lymphocyte responses to the antigen; their serum antibody levels were not higher. The responses of RA patients varied with duration of disease. In the first year (7 patients) T lymphocyte reactivity was increased in the synovial exudates of affected joints but not in peripheral blood, whereas the 19 with disease of 1-10 years' duration showed high reactivity in peripheral blood; in the 8 with disease for more than 10 years, lymphocyte reactivity did not differ from that in the patients with degenerative joint disease or the healthy controls. The observation that the three groups did not differ in their responses to streptococci and a T-cell mitogen indicates that reactivity of the RA patients to the mycobacterial fraction was specific. These results raise the possibility that bacterial antigens cross-reactive with cartilage proteoglycans may be relevant to the pathogenesis of RA.

Adult↗
PubMed1977

Detection of anti-red blood cell antibodies by treatment of the cells with neuraminidase.

Neuraminidase treated RBC were used to detect incomplete unbound anti RBC antibodies in the plasma of patients with immune diseases. 80% (48 out of 60) of the examined patients gave positive results with this method while all the 50 normal controls were negative. The indirect antiglobulin test was negative in all the patients. In the direct antiglobulin test only two RBC samples, whether treated with neuraminidase or not, gave positive results. The present study indicates that the assay of plasma on neuraminidase treated RBC may serve as a sensitive method for the detection of the presence of anti RBC antibodies in various immunological diseases.

Adolescent↗
PubMed1975

Acute lymphoblastic crisis in a patient with chronic lymphatic leukemia.

A case of chronic lymphatic leukemia terminating in a lymphoblastic crisis is described. The small lymphocytes were demonstrated to be B cells, they carried immunoglobulins on their surface and formed EAC rosettes. The lymphoblasts had no immunoglobulins on their surface and only 18% of them formed EAC rosettes, none formed E rosettes. The lymphoblasts could be either immature B cells or Null cells.

Acute Disease↗