Biomedical subjects

R Faust

Publications and source records attributed to R Faust.

4 recordsLinked to original sources

PubMed1979

[Lipids in the egg shell of the ostrich (Struthio camelus) (author's transl)].

The egg shell (with cuticle) of the ostrich contained a total lipid concentration of 0.19 mg/g egg shell; the phospholipids constituted the major portion, among the neutral' lipids cholesterol esters, cholesterol and free fatty acids were identified. The egg shell lipids showed a stimulating effect on the crystal growth of calcium carbonate; the highest rate of crystal growth was observed with the phospholipid fraction.

Animals↗

PubMed1978

Study of malpractice panels notes advantages, problems, gaps in data.

A special study on malpractice panel systems in four states identified the currently limited participation of non-physician hospital personnel and 14 factors that determine the effectiveness of such systems. However, more data are needed to determine whether such systems resolve cases fairly and quickly and stabilize malpractice insurance premiums.

Insurance, Liability↗

PubMed1976

Suitability of the C57 black mouse as an experimental animal for the study of skeletal changes due to ageing, with special reference to osteo-arthrosis and its response to tribenoside.

Histological studies in male C57 black mice revealed a high incidence (39-61%) of osteo-arthrotic changes in the knee joint from about the 17th month of life. In animals of the same strain aged 15 1/2 months the incidence was only 19%. The incidence of gonarthroses in 16-month-old female mice was considerably lower (4%). In male mice aged 17-20 months, the oral administration of tribenoside in doses of 500 and 1,200 mg/kg weekly led to a significant (p less than 0.05) reduction in the overall arthrotic involvement. A possible relation between the effect of tribenoside and other anti-inflammatory agents on osteo-arthroses in the mouse and their influence on mucopolysaccharide metabolism in connective tissue is discussed. The incidence of the formation of gaps in the epiphyseal growth zones and of osteoporosis of the femur and tibia in the same strain increases distinctly with advancing age. Except in animals treated with the highest dosage tested, in which there was a significant decrease in the development of osteoporosis, tribenoside in the range of doses used had no influence on these skeletal changes.

Aging↗

PubMed1975

Sequence and stages in patterns of adolescent drug use.

Two prospective longitudinal surveys based on New York State high school students indicate well-defined steps underlying adolescent progression and regression in drug use. At least four stages of involvement with drugs can be identified: (1) beer or wine; (2) cigarettes or hard liquor; (3) marijuana; and (4) other illcit drugs. Two stages of legal drugs are necessary intermediates between nonuse and marijuana. Very few youths progress to other illicit drugs without prior experience with marijuana. This sequence is found in each year of high school in the year following graduation. Progression to a higher-ranked drug is directly related to intensity of use at the prior stage. The identification of stages in drug behavior has implications regarding the optimum strategy for studying factors that predict, differentiate, or result from drug use.

Adolescent↗