Biomedical subjects
Publications and source records attributed to H Losse.
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In 58 patients with end-stage renal failure before commencement of regular hemodialyses treatment (RTD) and 58 patients under RTD bone mineral content (BMC) was determined by the use of the photon absorptiometry. Further the effect of a treatment with bitamin D3 and 5,6-trans-25-OH-vitamin D3 on BMC was studied. There existed a negative correlation between the duration of chronic renal failure or of RDT as well as of the serum parathyroid hormone level to BMC. No correlation was found between BMC and serum calcium level. During a 14 months-course treatment with vitamin D3 or 5,6-trans-25-OH-vitamin D3 BMC increased. The method of photon absorptiometry presented itself as an easy and well reproducible technique for routine examinations.
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Histologic, immunohistologic, and ultrastructural features are presented of two cases with malignant nephrosclerosis during pregnancy. Primary malignant nephrosclerosis emerges as a clinical entity which can be distinguished from toxemia of pregnancy in the midtrimester and post partum. The first description of malignant nephrosclerosis dates from 40 years ago, but only a few cases were reported associated with pregnancy. Although disseminated intravascular coagulation seems involved, the morphology is different from that of toxemia. Malignant nephrosclerosis reveals a close similarity to the hemolytic uremic syndrome. Early diagnosis by renal biopsy and proper treatment may prevent a lethal outcome due to progressive failure.
The effect of 0.4 mg i.v. Prindolol on arterial blood pressure and heart rate was investigated with continuous measurement by telemetry. The 19 healthy subjects and 13 patients were controlled at rest supine, standing and finally during exercise. Following Prindolol a significant decrease of blood pressure and heart rate was observed, in particular in the group suffering from hypertension and tachycardia and under conditions of exercise, when compared with the pretreatment values. No side effects were noted.
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Comparative morphological and clinical studies of 2,500 patients suffering from glomerulonephritis, enabled us to divide the different forms of diffuse glomerulonephritis into 3 distinct groups and to separate these groups from the focal glomerulonephritides. The different forms of diffuse glomerulonephritis in group I are: 1. endocapillary (acute) glomeruloenphritis (of the post-streptococcal type), 2. mesangioproliferative glomerulonephritis, 3. mesangioproliferative glomerulonephritis with focal crescents, 4. mesangioproliferative glomerulonephritis with focal scarring, 5. minimal proliferating intercapillary glomerulonephritis without nephrotic syndrome. It is emphasised that these forms can transform into one another, that they seldom occur with nephrotic syndrome, and with varying frequency with hypertension. Group II consists of: 1. minimal proliferating intercapillary glomerulonephritis with nephrotic syndrome, 2. focal sclerosing glomerulonephritis, 3. perimembranous glomerulonephritis, 4. membranoproliferative glomerulonephritis, 5. lobular glomerulonephritis. It is stressed that these glomerulonephritis forms usually do not develop out of group I type glomerulonephritis forms, and that in this group a nephrotic syndrome is the most prominent clinical syndrome. In the third group are 1. mesangioproliferative glomerulonephritis with diffuse crescents, 2. necrotising glomerulonephritis. It is shown that this form of glomerulonephritis does not usually develop from either group I of II forms. The fourth group of focal glomerulonephritis is uncommon. This disease is characterized by a necrotising and proliferative inflammatory lesion found segmentally and focally in the glomeruli. Most of the other glomeruli appearing normal. It is emphasised that in the literature the diagnosis focal glomerulonephritis is made far too often. This is because glomeruli in which the inflammatory process in a few lobules is of varying prominence, are included in the focal glomerulonephritis group. The classification of the different forms of glomerulonephritis into 3 groups here described, is thought of as a basic classification. It is compared with Ellis' classification (1942), with which it has much in common.
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