Postoperative improvement of hypertension in primary aldosteronism and Cushing's syndrome

In 24 cases of primary aldosteronism and 30 cases of Cushing's syndrome, the incidence of preoperative hypertension and postoperative improvement of hypertension was investigated. All the cases of primary aldosteronism showed preoperative hypertension. Postoperative improvement of hypertension was observed in 21 out of those 24 cases. In 14 of these 21 cases, hypertension improved within 1 month postoperatively. In Cushing's syndrome, 23 out of 30 cases showed preoperative hypertension which improved in 20 cases postoperatively. They needed longer periods of time before improvement of hypertension than the cases of primary aldosteronism. The pathological findings in renal biopsy specimens seem to be correlated with postoperative improvement of hypertension in both diseases.

Male hermaphrodite with 46,XX chromosome constitution

A 25-year-old male hermaphrodite with the sex chromosome constitution of 46,XX is reported. Clinical, endocrinological, pathological and cytogenetical studies are presented and discussed in comparison with findings in the so-called XX males reported in the literature.

Some theories to explain the paradoxical occurrence of a testis in XX males and XX male hermaphrodites are mentioned and a possible aetiological relationship between these XX male syndromes and Klinefelter's syndrome is suggested.

An ultrastructural study of mast granule formation in embryonic skin

No abstract available

Electrophotography by Persistent Polarization due to Inverse Field

A new method of electrophotography has been developed utilizing: (1) dark polarization of photo-conductive material released and rebuilt in the reverse direction in a very short time by applying light image and reverse field simultaneously; (2) the idea of capacitance image. CdS or SeTe was used as semiconducting material for the photoreceptor, which consists of four layers: the top layer is an insulating sheet about 9 micro thick, the second a photosensitive layer 75 micro thick, the third is an insulating blocking layer about 6 micro thick, and the fourth a carbon base electrode. This method has two steps of charging as its features: (1) the top insulating layer is charged by means of corona discharge; (2) light image and reverse field are given simultaneously, and then the electrostatic latent image is formed. Finally, over-all illumination is given, forming the capacitance image which is to be developed by the brush method. This new method uses materials of very low dark resistance which have never been used before. A clear image has been made on a CdS plate by 2-3 lx sec exposure, or on a SeTe plate by 0.05-0.1 lx sec.