Testosterona no semen humano. / Testosterone in human semen

Testosterona foi determinada em amostras de homens normospermicos, oligospermicos e azoospermicos. Foi observado um descrecimo significante em amostras de azoospermicos e oligospermicos. Uma correlacao positiva foi encontrada entre os niveis de testosterona e a motilidade dos espermatozoides

Estudo morfo-radiologico do cancer da mama. / Morpho-radiological study of breast cancer

Os autores se reportam ao estudo radiologico do cancer de mama, atraves de levantamento retrospectivo em 383 casos registrados na Unidade de Mastografia do Instituto Nacional de Ginecologia Preventiva e Reproducao Humana Foi avaliada a frequencia dos sinais primarios e secundarios, analisando-se as caracteristicas de cada um pormenorizadamente. Foi verificada a presenca do sinal primario em 90,3% e constatou-se a presenca de opacidade localizada em 78,6% dos casos. Ausencia de qualquer sinal radiologico que justificasse indicacao de biopsia ocorreu apenas em 4,2% dos casos, constituindo os falso-negativos

Cyclic AMP in cervical mucus.

Cyclic adenosine monophosphate normally stimulates motility of spermatozoa. Its concentration in cervical mucus was studied by an isotopic competitive method in 15 normal women aged between 20 and 50 years. Values were very high, particularly in the periovulatory period, with a mean (+/-SD) value of 167.90 +/- 154.96 nmol/l. These are very high when compared with values in other biological fluids (blood serum and urine).

Congenital dislocation of the hip in the newborn. A correlation of clinical, roentgenogrhic and anatomical findings.

This study correlates roentgenography, arthrography, morbid anatomy and histology in four newborn infants with congenital dislocation of the hip. Three died shortly after birth. In two of these, manipulative reduction was impossible. Both demonstrated secondary adaptive changes at autopsy, indicating that the dislocation had been present for some time in utero. The first had a paralytic dislocation (meningomyelocele), and the second showed no pathologic findings other than the dislocated hip. The third infant had a dislocation that was reduced at birth. The child died of pneumonia on the 15th day. At autopsy, no secondary adaptive changes were found in the hip. The fourth infant, who had undergone open reduction because of a dislocation irreducible at birth, was retrospectively found to have an intrauterine dislocation when the maternal roentgenogram was reviewed. Significant secondary adaptive changes were noted at the time of operation.