Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0034186 (pyelonephritis)
 6,144 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The various parts of the bovine urinary tract, the renal pelvis, the ureter, the urinary bladder, the urethra, the vaginal vestibule and the vulva, were examined for the capacity of the epithelial cells to bind Corynebacterium renale and C. pilosum. C. renale adhered best to the epithelial cells of the vulva, and then to those of the ureter and renal pelvis. C. pilosum also adhered best to the epithelial cells of the vulva, followed by those of the vaginal vestibule. The results indicate that the most important target tissue for these bacteria may be the vulva, and the results correlate with the fact that C. renale frequently causes pyelonephritis and ureteritis, while C. pilosum causes the same diseases less frequently and behaves like normal flora of the vaginal vestibule.
 ...
PMID:Adhesion of Corynebacterium renale and Corynebacterium pilosum to the epithelial cells of various parts of the bovine urinary tract from the renal pelvis to vulva. 400 9

The results of urethrocystography in 193 patients with urodynamically and clinically confirmed recurrent incontinence were analyzed. Severe displacement of the vesical cervix and the proximal section of the urethra predisposes the patient to recurrent stress incontinence. The roentgenological findings (difference of over 30 mm in the distance between the vesical cervix and the ischium, outflow of contrast medium next to the catheter under stress with differential values between 20 and 40 mm, angle of inclination of the proximal urethra of over 45 degrees) are significantly more frequent in cases of recurrent stress incontinence than in cases of first occurrence (132 patients). Of the 193 patients 164 (84%) had previously undergone a vaginal operation. In 60% of these 164 patients the difference in the distance between the vesical cervix and the ischium was 30 mm or more under "resting" stress, and in a further 19% it was between 26 and 30 mm, often with outflow of contrast medium during "pressing". Stress incontinence has a damaging effect on the supporting apparatus of the urethra and the bladder, and also on the ureter and the kidneys. Ureteral drainage disorders and chronic pyelonephritis are the changes most commonly diagnosed in roentgenograms. No statistically significant differences between recurrent and first-time stress incontinence were found. Urethrocystographic findings facilitate selection of the surgical procedure. It appears possible to reduce the frequency of recurrence if preoperative roentgenological findings are taken into account.
 ...
PMID:[Recurrent stress incontinence]. 405 46

Female rats deprived of water overnight, and then given 1.0 ml of E coli 0111:B4 via the urethra, developed pyelonephritis. A nearly absolute association was found between the occurrence of bacteremia after the transurethral infusion and the development of pyelonephritis. An identical lesion was produced by a combination of forniceal damage and intravenous injection of E coli. The kidney damaged by reflux was shown to be more susceptible to hematogenous pyelonephritis than the obstructed kidney and the distribution of the infection was due to localization of bacteria in the damaged fornix but not to the route of infection. The induction of retrograde E coli pyelonephritis in the rat required a tear in the pelvic epithelium creating pyelovenous communications, and the resultant bacteremia produced pyelonephritis. The incidence of ureteral reflux and the volume of inoculum that refluxed to the renal pelvis was shown radiologically to be a function of bladder distensibility, which is reduced by withholding water for a few hours. In this system, retrograde E coli pyelonephritis developed from a combination of two factors: (1) reflux-induced damage to the renal pelvis so that E coli are introduced into the kidney and (2) hematogenous infection of the damaged kidney.
 ...
PMID:Bacteremia in the pathogenesis of retrograde E. coli pyelonephritis in the rat. 494 81

THE REASONS FOR THE RECURRENCE OF URINARY TRACT INFECTION AFTER ANTIBIOTIC THERAPY ARE: (1) underlying renal disease, (2) the short female urethra, and (3) bacterial resistance. Quantitative bacteriuria rather than pyuria is important in diagnosis. Radiologic changes are late manifestations of pyelonephritis. Treatment of lower urinary tract infection requires a high urinary drug level, whereas renal infection requires high tissue levels. Urinary pH adjustment increases antibiotic effectiveness. Therapy for recurrent infection should be continued for at least six months.
 ...
PMID:The antibiotic treatment of urinary tract infection. 531 77

Experimental, ascending acute pyelonephritis in rats was produced by injecting 0 x 5 ml of 10(9) bacteria/ml into the urinary bladder via the urethra. No traumatic manipulation of the ureters of kidneys was necessary. A grading system for kidney lesions based on macro- and microscopical examination was used. The capacity of different Escherichia coli and proteus strains to induce acute pyelonephritis was tested, and the E. coli 06K13H1 strain and the Proteus mirabilis 03H1 strain were especially capable of causing urinary tract infection. For the P. mirabilis 03H1 strain, a dominance of right kidney lesions was noted in contrast to the E. coli 06K13H1 strain which did not show any side preference.
 ...
PMID:An experimental model for ascending acute pyelonephritis caused by Escherichia coli or proteus in rats. 699 91

A 22-year review of 328 patients with Crohn's disease revealed 70 patients with urinary tract symptoms. Cystitis was the most common problem, occurring in 44 patients. The urinary tract infections were recurrent in most patients, usually with 3 or 4 attacks per year. Despite the persistence of urinary infection, only 3 patients developed chronic pyelonephritis. Forty-nine patients had intravenous urography, and many were found to have slight dilatation of the upper urinary tract on one side. Seven patients had hydronephrosis, 3 with pyonephrosis. Five of 6 patients who developed calculi had a bowel resection. All of the recovered calculi were oxalate stones, but 3 were passed spontaneously and not analyzed. Eight patients, 7 of them males, had an ileovesical fistula. In 1, the colon was also affected. It was unusual for these patients to have severe urinary symptoms. One patient had a fistula from the rectum to the urethra. Although 32 of the 70 patients were female, most of the severe complications occurred in men. Aggressive investigation is not indicated, nor is radical surgery required.
 ...
PMID:Urinary complications of Crohn's disease. 740 53

Staphylococcus aureus remains a prominent cause of community- and hospital-acquired infection. This study reviewed 162 cases of S. aureus infection occurring in 120 adults who were hospitalized at a Veterans Affairs Medical Center and referred for consultation to the Infectious Disease Service. There were 37 cases of skin and soft tissue infection, 5 pyomyositis, 34 osteomyelitis, 13 septic arthritis, 19 pneumonia, 3 empyema, 5 pyelonephritis, 37 vascular infection, 3 epidural abscess, and 6 miscellaneous infections. Bacteremia was documented in 56 of 119 (47%) cases in which blood cultures were obtained, indicating the serious nature of the infections in many cases. Staphylococcus aureus is widely prevalent in healthy persons. Given its ubiquity and the capacity to cause a broad array of infections, an effective host response must play an important role in preventing infection. This host response is immunologically nonspecific, in that it depends upon the effectiveness of mechanical barriers to invasion and, once invasion takes place, the interaction of PMN, complement, and antibody that is probably present in serum of all immunologically competent adults rather than sensitization of B or T lymphocytes by any identifiable antigens specific to S. aureus. Analysis of the present cases calls attention to S. aureus as an opportunistic pathogen, 1 that only infrequently causes serious infection in otherwise healthy persons. Nearly every patient in this series had 1 or more medical condition thought to predispose to infection; 279 such conditions were identified, representing an average of 2.3 per person. A break in the natural barrier to infection was also present in the majority of cases, for example, trauma, wound, or pre-existing decubitus ulcer in skin and soft tissue infections; endotracheal tube in pneumonia; and a catheter bypassing urethra or skin in urinary and vascular infections, respectively. The tendency for patients to be infected with S. aureus repeatedly (mean number of infections, 1.4 per patient) reflects the chronicity of many predisposing factors and, perhaps, of colonization as well. Staphylococcus aureus has a special predilection to cause infections involving prosthetic devices, perhaps related to its affinity for fibronectin, laminin, and other serum proteins that can mediate attachment to foreign material; 46 of 162 (28%) infections were associated with the presence of a foreign body. Such infections are difficult to eradicate with antibiotic therapy alone, perhaps because of a change in the metabolic state of adherent bacteria, and removal of the foreign body is generally required for cure.(ABSTRACT TRUNCATED AT 400 WORDS)
 ...
PMID:The current spectrum of Staphylococcus aureus infection in a tertiary care hospital. 804 Dec 42

Spontaneous urinary calculus was observed in only 27% of female LEW rats among nine inbred strains maintained in the Institute for Animal Experimentation. The condition occurred between 3 and 9 weeks of age with loss of weight, enlargement of the os urethral externum, anuria and general marasmus. All of the affected rats died from anuria 3 to 4 days after the onset. The affected rats had one to ten infected stones or many fine crystals of sand, which consisted of magnesium ammonium phosphate, in the urinary bladder and/or urethra. Analysis of microorganisms revealed that Corynebacterium renale, known as a causative agent of bovine pyelonephritis, was the most probable candidate for producing infection stones. This is the first report that the rat is spontaneously infected with C. renale. This could be a useful animal model for human urinary calculus and also for C. renale infection in the field of veterinary science.
 ...
PMID:Spontaneous urinary calculus in young LEW rats caused by Corynebacterium renale. 805 21

We modified Studer's bladder substitute technique and constructed continent urinary reservoir for 7 patients with bladder tumors after transprostatic cystoprostatectomy. Studer's bladder substitute technique is characterized by both a tubular isoperistatic proximal limb of 20 cm of the ileum in continuity with the pouch constructed using the detubularized ileum and the ureters reimplanted into the proximal part of the limb using a simple lateral anastomosis of the ureters to the end of the limb. Our modifications, transprostatic resection, was that distal one third or fourth of the prostate was left after cystoprostatectomy followed by either enucleation of the whole residual prostatic tissue including the urethra (type II) or sharp resection of the tissue leaving the urethra (type III). A small hole in the lowest part of the pouch was anastomosed either to the residual prostatic capsule (type II) or to the residual prostatic urethra (type III). Our modified Studer's technique was simple, easy to perform, and had low risk of massive bleeding especially from the central vein overlying the appex of the prostate. Clinical results were as follows; 1) all patients were satisfied with the passing of their urine per urethra without any cutaneous stoma, 2) no patients had clinical signs of pyelonephritis after discharge, 3) urine was not infected.(ABSTRACT TRUNCATED AT 250 WORDS)
 ...
PMID:[Clinical experience with modified Studer's bladder substitute]. 806 81

To prevent renal scarring, which occurs at the end stage of chronic pyelonephritis due to vesicoureteral reflux of infected urine, immediate antimicrobial treatment is reported to be essential. When treatment is delayed, the antimicrobial agent is believed to be effective only in eliminating bacteria, not in preventing scar formation. Using the ascending pyelonephritis model in rats, we investigated the effect of immediate or delayed treatment with ciprofloxacin and that of delayed treatment with a combination of ciprofloxacin and prednisolone in preventing renal scarring following infection. An inoculum of 1 x 10(9) colony forming units (cfu)/0.1 ml. of the HM32 strain of Escherichia coli, which was isolated from a patient with a urinary tract infection, was injected directly into the rat bladder, and the urethra was clamped for 4 hours in each rat. Treatment by ciprofloxacin (15 mg./kg., twice a day for 5 days) alone or in combination with prednisolone (2 mg./kg., once a day for 4 days) was initiated 6 or 72 hours after bacterial inoculation. The kidneys of each rat were examined 6 weeks later. Immediate treatment by ciprofloxacin significantly inhibited renal scarring (no scarring was seen in any of the 8 rats), but delayed treatment had no effect on scarring (4 of 8 rats showed scarring) when compared with the untreated controls (7 of 8 rats showed scarring). However, the addition of prednisolone to the delayed treatment with ciprofloxacin significantly inhibited renal scarring (only 1 of 10 rats showed scarring) when compared with the untreated controls (7 of 8 rats showed scarring). These data suggest that prednisolone is effective in preventing renal scarring which occurs due to vesicoureteral reflux when the initiation of antimicrobial treatment is delayed.
 ...
PMID:Suppression of renal scarring by prednisolone combined with ciprofloxacin in ascending pyelonephritis in rats. 812 97


<< Previous 1 2 3 4 5 6 7 Next >>