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31.
Total skin collagen is greatly increased in women with hirsuties. This is presumably due to androgen, whether locally produced or circulating. 相似文献
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J. L. Burton W. J. Cunliffe D. G. Millar Sam Shuster 《BMJ (Clinical research ed.)》1970,2(5712):769-771
Sebum excretion rates from forehead skin were measured serially during and after pregnancy in 10 normal women. Only minor fluctuations occurred during the middle and last trimesters of pregnancy, but there was a pronounced decrease in the postpartum period. Probably a powerful sebotrophic factor is present in pregnancy, but its nature is conjectural. 相似文献
33.
Laszlo Ambrus Sam H. Thal Selig B. Weinstein Juanita Warnecke 《The Western journal of medicine》1967,106(5):354-358
Following a six-week program of training in a series of exercises, a significant number of patients with chronic obstructive pulmonary emphysema showed decided improvement in functional activity. Subjective improvement also was noted and kept the patient motivation high.Preliminary observations indicated that the improvement could be maintained long after the end of the training period. 相似文献
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Persistence of neutralizing antibody in adult volunteers immunized with adnovirus soluble antigens 总被引:5,自引:0,他引:5
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Specimens of Calamophyton from the Middle Devonian Ashokan Sandstone near Kingston, Ulster County, N.Y., are shown to belong to C. bicephalum Leclercq and Andrews, a Belgian species. Steel needles and a stereoscopic binocular microscope were used to follow the path of the forking leaves and branching sporangiophores of the specimens through the matrix. The terete leaves dichotomized two to three times in more than one plane. Sporangiophores dichotomized once. Each branch bore three recurved lateral branches which in turn bore two sporangia. Each branch terminated in an elongate, filiform projection. Sporangia apparently dehisced longitudinally. Their walls were composed of elongate cells. Their spherical spores ranged from 86 to 166 μ in diameter and bore a trilete mark. Ornamentation consisted of coni and spinae up to 4.5 μ long. They resembled dispersed spores of Dibolisporites gibberosus var. major Richardson. This is the second occurrence of Calamophyton bicephalum and the first account of its spores. It is the second report of the genus in North America. 相似文献
38.
P. Banks 《The Biochemical journal》1965,95(2):490-496
1. The preparation of a fraction containing highly purified chromaffin granules from the bovine adrenal medulla is described. 2. The fraction contains an adenosine-triphosphatase activity that is stimulated by Mg2+ and that cannot be explained by contamination with mitochondria or microsomes. 3. It is suggested that the adenosine-triphosphatase activity is related to the uptake of cate-cholamines by the chromaffin granules. 相似文献
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