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Biomedical subjects

O Steeno

Publications and source records attributed to O Steeno.

At least 37 records · Page 2Linked to original sources

Sexual impotence in man.

An analysis as to etiology and complaints of 486 cases of male sexual impotence was performed and is presented. Psychological factors are dominant in 68%. Physico-organic or iatrogenic causes accounted for deviations in 26% of the patients examined. Educational factors took an important part mainly in ejaculation disturbances. Primary anejaculation as a consequence of educational flaws occurred in 15% of the patients. Erection disturbances were often the consequence of physico-organic affections. The loss of libido was a real complaint in 19% of the patients.

Adult↗

Changes in areolar size in boys during the growth phase and pubertal development.

The areolar size was measured in a group of 755 school boys, aged 7 to 20 yrs. At the onset of puberty a sudden increase in areolar size has been noted, with a gradual increase in areolar size as pubertal development proceeds. The increase in areolar size must be seen as a pubertal phenomenon, resulting from a peripheral influence of sexual hormones, but a significant positive relationship to body size during this period of life must also be taken into account.

Adolescent↗

Separation of X- and Y-bearing human spermatozoa with the sephadex gel-filtration method.

By means of the Sephadex gel filtration method we were able to separate a fraction rich in X-bearing human spermatozoa, in contrast with the method of Ericsson et al. (1973), which allows to obtain a fraction rich in Y-bearing sperm. The method, which is simple and not time-consuming, may allow control of sex in cases of expressed sex desire in off-spring.

Chromatography, Gel↗