Showing papers by "Israel Ministry of Health published in 1971"
37 citations
TL;DR: The production of extracellular nicotinamide adenine dinucleotide glycohydrolase and the cell-bound lipoproteinase by strains of different serological types of group A streptococci, in relation to the T typing, was studied.
Abstract: The production of extracellular nicotinamide adenine dinucleotide glycohydrolase (NADG) and the cell-bound lipoproteinase (serum opacity reaction, SOR) by strains of different serological types of group A streptococci, in relation to the T typing, was studied. The production of both NADG and SOR, or only one of them, was found to be characteristic of serotypes, as determined by M and T antigen. No difference in the production of these enzymes was found in relation to M-positive and M-negative variants. Investigation into NADG and SOR production as related to the T type enabled the division of a single agglutination pattern into four main groups, each of which corresponds to one specific M type or more. Of the 370 strains belonging to 12 different T-agglutination patterns, 21% produced both enzymes and 42.5% failed to produce any of them, whereas the remaining 36.5% produced only one out of the two enzymes. Five streptococcal types which did not produce NADG and SOR also failed to synthesize streptolysin S at the early logarithmic phase of growth, indicating that streptolysin S production by young cultures may be also related to serotype. No correlation was found between the production of NADG-SOR as related to serotype and the production of streptolysin O, acid phosphotase, esterase, N-acetylglucosaminidase, hyaluronidase, streptokinase, and the cell-sensitizing factor. The practical and potential usefulness of NADG and SOR production in epidemiological studies is discussed.
15 citations
TL;DR: In this article, the lateral lumbar spine roentgenograms from 1,463 adult outpatients without bone disease or malignancy were visually evaluated for degree of osteoporosis, with diet studied for 330.
Abstract: Lateral lumbar spine roentgenograms from 1,463 adult outpatients without bone disease or malignancy were visually evaluated for degree of osteoporosis, with diet studied for 330. Degree of osteoporosis increased with age, more rapidly in females. In subjects over 60, 68% of men and 94% of women showed some degree of osteoporosis, and 5% and 22%, respectively, showed more than minimally detectable osteoporosis. Subjects of North African and Asian (other than Israeli) origins had significantly more osteoporosis than those of European, North American, or Israeli origins. Males consumed more calcium and protein, consumption of both decreasing with age. By age and sex, there was no association between calcium or protein intake and osteoporotic extent. Although levels of calcium, nitrogen, or hydroxyproline in random urine samples were not associated with osteoporosis, higher phosphorus levels were.
13 citations
TL;DR: In this article, a triple strength selenite broth (TSS) was used to isolate salmonellae from sewage and contaminated water, and the results were superior to those obtained by membrane filtration and about equal to those of Moore pads, with less work involved.
8 citations
6 citations