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Query: UMLS:C0403608 (ureter)
 9,655 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The ultrastructure of the ureter in the nonhuman primate is described. In experimentally produced chronic pyelonephritis, the ureter shows extensive ultrastructural changes throughout the wall. The epithelium has cellular damage progressing from the basal cells to the superficial cells. There is an invasion of leukocytes into the intercellular spaces at all levels. The connective tissue layer seems thickened with an increase in active fibroblasts, leukocytes, collagen, and elastic fibers. There are various stages of damage in the smooth muscle layer and an abnormal increase of connective tissues between bundles and smooth muscle cells. The interdigitating nexuses seem stretched and altered. The changes are similar to those seen in ureteral obstruction and are assumed to be reparative.
Invest Urol 1979 Sep
PMID:Chronic pyelonephritis. Electron microscopic study. III. The ureter. 11 82

A case of true congenital diverticulum of the ureter associated with a solitary kidney is reported. The diverticulum was producing hydroureteronephrosis. Treatment consisted of excision of the diverticulum and repair of the narrowed area in the ureter. At 4-year followup there was no deterioration on excretory urography and renal function tests have remained normal.
J Urol 1979 Sep
PMID:Case report: congenital ureteral diverticulum and solitary kidney. 11 61

The prune belly syndrome of marked abdominal muscle deficiency and associated genitourinary anomalies has been found almost exclusively in male subjects. Of the few reported cases of female patients with this entity most are questionable or incomplete forms. The light microscopic histology and electron microscopic ureteral abnormalities in male subjects have been reported previously. A female newborn with marked abdominal muscle deficiency and severe bilateral ureteropyelocaliectasis is described. Chromosomal studies showed 46 XX karyotype. Histologic examination of the ureter by light microscopy was compatible with the diagnosis.
J Urol 1977 Sep
PMID:Prune belly syndrome in the female subject. 14 43

The metabolic fate of heparan N-[(35)S]sulphate was studied in rats. Heparan sulphate was obtained from either bovine aorta or lung and labelled with (35)S by desulphation and subsequent resulphation in vitro. Experiments in which heparan N-[(35)S]sulphate was administered intravenously to either free-range or wholly anaesthetized rats with ureter cannulae established that substantial desulphation occurs in vivo, with elimination of inorganic [(35)S]sulphate in urine. Oligosaccharides labelled with (35)S, possible intermediates in heparan sulphate degradation, could not be detected in urine or blood. The general distribution of radioactivity after administration of heparan N-[(35)S]sulphate, as demonstrated by whole-body radioautography, suggested that desulphation was not restricted to one organ in particular. Support for this view was obtained in experiments in which heparan N-[(35)S]sulphate was administered to animals after the removal of kidneys, liver, spleen, pancreas or gastrointestinal tract. In all cases inorganic [(35)S]sulphate was still produced. The ability of rats of desulphate heparan N-[(35)S]sulphate was progressively impaired by increasing concentrations of heparin administered simultaneously. It was concluded that heparan sulphate is metabolized at a number of sites in the body by a sequence of degradative events leading to the formation of inorganic sulphate. It is also concluded that at least some of these events are common to heparan sulphate and heparin.
Biochem J 1977 Sep 15
PMID:The catabolism of intravenously injected heparan N-[35S] sulphate in the rat. 14 56

The induction by gamma radiation of reproductive death in cultured cells derived from a rat ureter carcinoma (RUC-2) and from Chinese-hamster lung tissue (CH-V79) was shown to be enhanced by hyperthermic treatments at 41, 43 and 45 degrees C. The degree of enhancement was found to depend on the line of cells studied, the temperature employed and the level of damage considered. The influence of accumulating sublethal damage was decreased by hyperthermia, and the final slope of the radiation survival curve was increased. The degree of enhancement of lethal damage was found to depend on the time interval between the heat treatment and irradiation, especially at 41 degrees C.
Int J Radiat Biol Relat Stud Phys Chem Med 1978 Sep
PMID:Thermal enhancement of the effectiveness of gamma radiation for induction of reproductive death in cultured mammalian cells. 30 51

A non-functional and permanently damaged lower urinary tract is no longer a contraindication to kidney transplantation. In patients with this disorder the ureter commonly is drained by an intestinal conduit. We have used terminal loop cutaneous ureterostomy as a method of urinary drainage in 3 patients with cadaver kidney transplants who have been followed for up to 8 years. The technique of terminal loop cutaneous ureterostomy and a report of these cases are presented.
J Urol 1977 Sep
PMID:Terminal loop cutaneous ureterostomy: a method of urinary drainage in kidney transplantation. 33 30

Review of a consecutive series of 85 cadaveric renal transplants revealed urinary fistulas in 7 cases. Bladder fistulas originated from the anterior cystostomy suture line in 3 patients and required secondary closure in every case. Ureteral fistulas from the donor ureter often required a multistaged operation. In every case the end result has been satisfactory, with closure of the fistula and preservation of renal function.
J Urol 1978 Sep
PMID:Conservative surgical management of urological complications after cadaveric renal transplantation. 35 59

By a still broader side to side anastomosis of the ureter with a pedicle flap of the abdominal skin in form of a conduit and its hitherto satisfying results this seems to develop as a suitable methode for the suprapubic passage of the urine.
Z Urol Nephrol 1978 Sep
PMID:[The Hak-Hagir skin conduit]. 36 62

Most fungal infections of the urinary tract involve the drainage structures rather than the kidney parenchyma. They usually occur in patients with diabetes or other chronic debilitating diseases and in the presence of urinary stasis. Conglomeration of fibrillar hyphae results in fungal balls which produce nonopaque filling defects in the renal pelvis, ureter, or bladder. Such fungal ball colonies were demonstrated by percutaneous (antegrade) pyelography in the upper urinary tract in two cases. A percutaneous nephrostomy was performed in one patient to provide drainage of pus in the renal pelvis.
AJR Am J Roentgenol 1977 Sep
PMID:Fungal infection of the urinary tract: demonstration by antegrade pyelography and drainage by percutaneous nephrostomy. 40 93

The response of the healthy pyeloureteral system of the pig to stepwise increments of urine flow was measured using a flow-velocity, diameter probe. The following urodynamic parameters were measured: renal pelvic pressure, ureteral flow-velocity and diameter, and associated bolus volume in the range of urine flow rates of 0.3 to 10 ml per min. The results show that the diameter sensoring portion of this probe can reliably sense ureteral peristalsis over the entire range of urine flow rates; small alterations in ureteral diameter occurring in dilated ureters after high diuretic loads can also be detected. Data obtained using the flow-velocity portion of this probe indicate that at urine flow rates less than 0.5 ml per min flow-velocity changes of a bolus can be reliably identified. At these flow rates the maximum flow-velocity occurs at the leading edge of the bolus and is invariant with the size of the bolus. At urine flow rates more than 1 ml per min the flow-velocity curve is polyphasic, indicative of an alteration in the mechanism of urine transport by the ureter at these flows. Collectively, data obtained using this probe provide dynamic information concerning the physiologic properties of the upper urinary tract not currently attainable in existing pressure/flow methodologies.
Invest Urol 1979 Sep
PMID:Assessment of pyeloureteral function using a flow velocity and cross-sectional diameter probe. 46 9


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