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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Urological research 1 (1973), S. 1-1 
    ISSN: 1434-0879
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1434-0879
    Keywords: Hypospadias-repair ; histoacrylic bridging adhesion ; no traction sutures ; no catheter
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In 46 animals experiments and in 16 patients various modifications of pasting of the skin after surgical correction of hypospadias or urethral fistulas were tested. “Bridging adhesion” by the use of histoacrylic-N-blue has been of the greatest advantage. Even if no urethral catheter and no traction sutures are used wound infection, fistulas and wound dehiscence are usually not to be expected. The surgical technique presented means a technical simplification and a better prognosis for the patient as far as the well known complications of hypospadias repairs go. It also means an easier operation and post operative course for patient and surgeon.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1434-0879
    Keywords: Kidney-transplantation ; urological complications
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Complications affecting the healing of the ureters of transplanted kidneys may lead to extensive scaring. Since further ureterostomy is rarely practicable, in many cases removal of the graft becomes necessary. Methods: A pyelo-cysto-neostomy was performed around a plastic endoprosthesis. Results: Despite reflux, the hydronephrosis disappeared. After seven months, the endoprosthesis was still in place and was not encrusted. The urine was sterile. Conclusion: The use of modern plastic materials, a low urinary calcium level and low urinary osmolarity have made a simple technique feasible for rescueing transplanted kidneys in cases of ureteric scarring.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Urological research 1 (1973), S. 11-14 
    ISSN: 1434-0879
    Keywords: Mixed leukocyte culture ; histocompatibility test ; uraemid subjects
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The activities of mixed leucocyte cultures (MLC) prepared from pairs of healthy subjects were estimated from the uptake of tritiated thymidine by the cultures. It was confirmed that MLC is a practical method for detecting identical twins amongst siblings. MLC has not often been employed for donor selection for renal transplantation, mainly because of the impaired MLC reactivity of leukocytes from uraemic patients. An attempt was made to separate lymphocytes from uraemic leukocyte-rich plasma, which always has a high proportion of neutrophils. A lymphocyterich fraction of uraemic leukocytes has MLC reactivity comparable to that of non-uraemic leukocytes.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1434-0879
    Keywords: Ureter ; viscoelasticity ; smooth muscle ; muscular properties ; stress-strain
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The viscoelastic behaviour of segments of ureters from dogs and guinea pigs has been studied by an ergometer. Elongation of the ureter produces a force, which may be ten times greater than the force of ureteric contractions, and which is proportional to the rate and magnitude of the stretch. Elongations of sufficient length and rate induce spontaneous contractions, the amplitude of which is proportional to the extent of the stretch after some cycles of elongation and shortening. The ureter shows hysteresis so that the loops of the force-length diagrams run in a clockwise direction. However, strain cycles of less than 4% LO, and less than 0.07 Hz, provoke counterclockwise loops. The loops of the force-length diagram of the contractions also slope in a counterclockwise direction. The ureter behaves like a plasto-elastic body and adapts to strain. The plastic element is at least partly due to the musculature, since the deformation is reduced by continous stimulation of the ureter.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1434-0879
    Keywords: Testis ; spermatogenesis ; anterior pituitary ; gonadotropins ; cryptorchism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effects of cryptorchism on testis weight and histology, ventral prostate weight (VPW), and serum LH and FSH were assessed in rats 49 days of age. Rats 49 days of age have elevated FSH levels which fall to adult range when mature testis weight is achieved. Bilateral crytorchism producted: 1. histological changes in the testes by 3 days and a final reduction of testis weight of 75%; 2. a reduction of VPW of 40%; and 3. elevations of both serum LH and FSH by 4 days; serum FSH did not increase to castrate levels. It is concluded: 1. because serum FSH levels correlate with testicular maturation, some product of the germinal epithelium may selectively regulate FSH secretion; 2. because cryptorchism destroys the germinal epithelium but dose not elevate FSH to the castrate range, spermatogenic activity is not the sole regulator of FSH; and 3. because cryptorchism damages both the gametogenic and androgenic functions of the testes, it will not provide a model for studies of selective FSH regulation.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1434-0879
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary An electron microscopic study of human prostate cells grown in monolayer tissue cultures is presented. The cultures were established from tissue of 4 patients with adenocarcinomas of the prostate. The predominant cell type was identified as epithelial. These cells were characterized by close cell growth with many desmosomal junctions, formation of “lumina” between cells and atypical mitochondria. The ultrastructural appearance is compared to that of prostatic cancer in surgical specimens and culture cells derived from benign nodular hyperplasia of the prostate.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Urological research 1 (1973), S. 32-36 
    ISSN: 1434-0879
    Keywords: Gentital tuberculosis ; male ; experimental tuberculosis ; spread of genital tuberculosis ; experimental model-guinea pig
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary An experimental method is described for investigating the routes of spread of tuberculosis in the male genitalia. A human strain of tubercle cacilli (H37Rv) was inoculated into the epididymis or seminal vesicle of guinea pigs (40 animals), half of whom had been prepared beforehand by resection of the ductus deferens with preservation of the surrounding vessels. The spread of infection was studied by histological and bacteriological methods. It was shown that there is an additional route of spread besides the lumen of the ductus deferens, probably via lymphatics.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1434-0879
    Keywords: Hypercalcaemia ; glucagon ; urinary electrolytes ; inulin clearance ; minipig
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effects of glucagon (G) on glomerular filtration rate (GFR) and the urinary excretion of electrolytes were studied during sequentially increasing hypercalcaemia in minipigs. G has no specific effect on GFR. The observed increase in the excretion of electrolytes was probably due to increased amounts of calcium in the glomerular filtrate rather than to any specific hormonal effects. The results obtained in parathyroid suppression experiments (using i. v. infusion of calcium) suggest that the renal effects of G may somehow be related to intact thyroid-parathyroid activity and normal circulating levels of these hormones.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1434-0879
    Keywords: Parathyroids ; hyperparathyroidism ; renal failure ; quantitative histology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Moderate renal failure was produced in 10 dogs by heminephrectomy on one side and contralateral nephrectomy. Hypercalcaemia and hyperphosphataemia developed in all the animals, and there was volumetric, light microscope and ultrastructural evidence of hyperparathyroidism. The hyperplastic parathyroid glands mainly consisted of chief cells with features of great functional activity. The results show that secondary hyperparathyroidism may develop in the absence of hypocalcaemia.
    Type of Medium: Electronic Resource
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