Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0403608 (ureter)
 9,655 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Previous studies have shown that electronic lithoclast discharges produce effects resembling an underwater explosion. It was predicted that the shock wave produced by each discharge could damage nearby gas-containing gut through a mechanism known to be associated with underwater detonations. Effects associated with rapid oscillation of the vapour bubble produced could cause damage to the wall of the bladder. Investigation of lithoclast discharges in vivo on goat, and in vitro on sheep bladders demonstrated perforation of both. In vitro studies in the rabbit demonstrated the predicted greater susceptibility of air-filled gut over that filled with fluid. These hazards would be even greater in the ureter and caution in the use of electronic fragmentation of vesical and ureteric calculi is urged in the light of these findings.
 ...
PMID:Hazards to bladder and intestinal tissues from intravesical underwater electrical discharges from a surgical electronic lithoclast. 96 Mar 20

The abnormal findings in a case of Situs inversus totalis are described. The duodenum was placed abnormally and retained its primitive mesentery. The proximal 22 in of jejunum were retroperitoneal. The attachment of the root of the mesentery to the posterior abdominal wall had a 7-shaped appearance, and there was a partial failure of the primitive mesocolon to adhere to the posterior abdominal wall. The common hepatic artery arose from the superior meseneric artery, which also provided a branch to the proximal jejunal loop. The right vagus nerve was found anterior to the oesophagus at the oesophageal hiatus in the diaphragm, and the left vagus was posterior. A double ureter was present on the right side. The findings are discussed in relation to mid-gut development.
 ...
PMID:Observations on some additional abnormalities in situs inversus viscerum. 100 9

The chapter of injuries to the ureter during obstetric-gynaecological surgery continues to be ignored in the literature published over the last decades, in spite of its prevalence in the practice. This has motivated our review and update of this issue. The interest of urological diagnostic procedures prior to surgery and conduit examination at any time during the operation exert some influence on the prevention of this pathology. Preoperative finding and reconstruction lead to better results, which benefit from the use of the urinary route, thus leaving the gut route and self-transplantation for exceptional situations. A new iatrogenic pathology has emerged from the most frequent use of gynaecological endoscopic surgery.
 ...
PMID:[Lesions of the ureter in obstetric-gynecologic surgery]. 146 8

A 32-year-old female was admitted to our hospital with the chief complaint of vaginal discharge of urine. She had undergone radical hysterectomy due to uterine cancer at another hospital by a gynecologic surgeon 5 years earlier. X-ray examination showed a stone-like shadow at the left ureter without hydronephrosis. She was diagnosed with ureterovaginal fistula with the left ureteral stone. Left ureterolithotomy and ureterovesiconeostomy was performed. The stone revealed a foreign body stone originating from the silk worm-gut which had penetrated accidentally the ureter when the vaginal wall was sutured at the previous surgery. Including our case, 15 cases of foreign body stones in the upper urinary tract were found in the Japanese literature and none of them were associated with ureterovaginal fistula.
 ...
PMID:[A case of uretero-vaginal fistula with ureteral foreign body stone originated from the suture thread]. 192 80

An experimental model for investigating the effects of localized X-irradiation of a single ureter or the bladder trigone in rats is described. Obstruction of the urinary tract in the irradiated region gives rise to hydroureter and hydronephrosis and the development of these, as detected urographically, gives a clear-cut end point. After irradiation of the ureter with a single dose of 37.4 Gy many rats died of gut lesions but after 23.4 Gy only one such death occurred while 14 of 16 rats developed hydronephrosis. Irradiation of the bladder trigone was not associated with intercurrent deaths, even after 40 Gy, and after 25 Gy 9 of 11 rats developed hydronephrosis.
 ...
PMID:Radiation-induced hydronephrosis in the rat: a new experimental model. 387 13

Six out of 135 pyeloplastic operations were performed in the presence of an acute infection. In spite of the inflammatory process the postoperative course was uneventful and the late results were also satisfactory. With the exception of one case, the operation was invariably of the Anderson-Hynes type, with splinting of the ureter and nephrostomy. The anastomosis was prepared with interrupted cat-gut stitches. Three cases are reported in some detail.
 ...
PMID:Pyeloplastic surgery in the presence of suppurative pyelonephritis. 399 3

In minipigs 1 ureter was replaced by a loop of the terminal ileum and the contralateral kidney removed. After 2.5 to 3 years the morphology of the replaced ureter was compared with the normal ileum. Independent of the 3 different operative techniques used, in about half of the pigs there was loss or flattening of the villi. In the other pigs the morphometrically determined number of intraepithelial lymphocytes, the cell density in the lamina propria and the length of the villi did not differ significantly compared with the normal ileum. There was no increase in goblet cells in the crypts. The transitional epithelium covered only a short distance at the anastomotic junctions. Peyer's patches of normal age-related size were found in the replaced ureter. Despite the long-term contact with urine instead of gut contents, in many pigs a normal amount of lymphocytes remained in the "ileal ureter".
 ...
PMID:Replacement of the ureter by an ileal loop. Quantitative aspects of long-term morphological alterations in minipigs. 688 77

A case of malformation of the urogenital system with a persistent urogenital sinus and a cloaca is reported. There was unilateral agenesis of the kidney, megaureter and a double ureter with an ureteral orifice into the vagina and the clitoris. There was a double uterus and vagina with an orifice into the terminal gut. The patient had chronic recurrent urinary tract infections which required a colostomy during childhood. The operation largely restored a normal urogenital area and a functional anus.
 ...
PMID:[Operative correction of a urogenital malformation with persistent cloaca]. 692 10

To study receptors for angiotensin II, polyclonal rabbit anti-peptide antisera were prepared against the peptide QDDCPKAGRHC corresponding to amino acids 15-24 of the rat AT1A and AT1B receptors. Western analysis of rat tissues showed a major band of approximately 43 kDa. The antisera immunoprecipitated AT1-receptor protein produced in vitro. Immunohistochemical analysis of rat tissues showed intense staining of arterial and arteriolar smooth muscle. Other tissues that contained AT1-receptor protein included hepatocytes, the zona glomerulosa of the adrenal gland, and the smooth muscle of the bronchus, gut, ureter, and epididymis. In the kidney, intense staining was observed in all small arteries and arterioles. Both afferent and efferent arterioles contain approximately equal intensities of immunoreactive AT1 protein. The inner stripe of the outer medulla has a moderate level of receptors within thick ascending limb epithelium. Proximal tubular epithelium also expresses receptor protein. Glomerular immunoreactive AT1 protein is found within mesangial cells and varies in intensity among different rat strains. Lewis and Wistar rats demonstrated moderate glomerular staining, whereas the CD and Sprague-Dawley strains showed lesser levels of reactivity. The fact that glomerular mesangial cells are the primary locus of angiotensin II action within the glomerulus.
 ...
PMID:Immunohistochemical localization of rat angiotensin II AT1 receptor. 768 19

Chronic intestinal pseudo-obstruction denotes the clinical picture that results due to the failure of intestinal peristalsis to overcome the normal resistance to flow and is characterized by recurrent episodes of signs and symptoms of intestinal obstruction in the absence of any mechanical compromise of the intestinal lumen. The region(s) of the gut affected may be isolated or diffuse. It is not uncommon to find evidence of autonomic neuropathy and smooth muscle dysfunction with extraintestinal manifestations such as urinary symptoms from abnormal ureter or bladder function. Intestinal pseudo-obstruction can be caused by a variety of diseases, and for simplicity, certain authors have divided it into myopathic and neuropathic categories. Intestinal pseudo-obstruction may present at any age with a variable amount of abdominal pain, distension, nausea, diarrhea, or constipation and with laboratory abnormalities usually reflecting the degree of malabsorption and malnutrition present. The radiologic findings are varied but commonly include paralytic ileus or signs of apparent clinical obstruction with dilated loops of bowel. The number of pseudo-obstruction cases is dependent on how one defines the condition. It appears prudent to require radiographic abnormalities consistent with obstruction on a plain film of the abdomen for the diagnosis. More recently, studies have focused on the gastrointestinal manometric abnormalities of the stomach and small intestine in chronic intestinal pseudo-obstruction during fasting and fed states; however, sensitivity and specificity of these abnormalities are not well defined. Treatment is aimed at limiting symptoms and maintaining adequate nutrition. Prokinetic agents should be tried in an attempt to restore normal intestinal propulsion. However, their overall efficacy appears to be variable. It is still too premature to consider intestinal pacing or small bowel transplantation in this condition. Surgical approaches to chronic intestinal pseudo-obstruction should be limited to patients refractory to medical therapy, and even then, an approach focused on the patient's primary presenting symptoms should be considered.
 ...
PMID:Chronic intestinal pseudo-obstruction. 854 80


1 2 3 4 Next >>