Wyniki wyszukiwania - Biblioteka Nauki

1

Asymptomatic bladder leiomyoma: a report of three cases treated with minimal invasive techniques and a review of literature

100%

Przudzik M. , Derkaczew M. , Łesiów M. , Roslan M.

OncoReview

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2022

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tom 12

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nr 3

59-64

EN

We report a rare case of metastatic gastric cancer from invasive carcinoma of the breast (BC) as the first symptom of disease-mimicking primary gastric linitis plastica.

2

Impact problem in biomechanics of bladder

75%

Kren J. , Zan J.

Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska

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2005

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tom z. 28

99-102

EN

The paper deals with an introduction to the modelling of the bladder crash simulation. In this contribution we will consider that the whole urine-bladder system is kinematically excited. The wall of bladder featuring by non-linear elastic properties undertakes large strains. The urine is a Newtonian fluid, its flow is laminary and non-stationary. Solving this problem the finite element method is applied for the space discretization of continuums, the diference method for the time discretization and for the solution of a system of non-linear algebraic equations an iterative Newton-Raphson's method is then used.

3

Local involvement of the lower urinary tract in primary colorectal cancer – outcome after en-blocresection

75%

F.Hartwig, Morten , Bulut O. , Niebuhr M. , Thind P. , Steven K. , Bülow S.

Polish Journal of Surgery

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2016

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tom 88(2)

99-105

EN

Invasion of urinary organs due to advanced colorectal cancer can comprise a surgical challenge in achieving negative resection margins. The aim of the study was to asses the outcome of patients with colorectal cancer invading the lower urinary organs. Material and methods. This is a cohort study that retrospectively evaluated the surgical and pathological findings after the resection of colorectal cancer with adjacent urological organs due to advanced colorectal cancer. Patients with primary colorectal cancer invading urological organs where primary resection was attempted were included. Results. The study included 31 patients who underwent surgery in our department between 1997 and 2012. Median age was 65 years (range 44‑77 years). Seventeen patients underwent partial cystectomy, one had partial prostatectomy performed, eight patients underwent cystoprostatectomy, two had cystectomy performed and three had prostatectomy performed. Overall morbidity rate was 71% (95% Confidence Interval (CI): 55‑84%, n=22). The 30-day mortality rate was 10% (95% CI: 0‑23%, n=3). Twentyseven of 31 patients had free resection margins. Four of 28 patients developed distant metastasis (14%, 95% CI: 4‑29%), 11% developed local recurrence (95% CI: 0‑25%, n=3). Median follow-up was 41 months (range 0‑150 months). Histopathological examination revealed tumour invasion in 52% (95% CI: 35‑69%, n=15) of the resected urological organs. The overall five-year survival rate was 70%. The five-year survival rate in the radical resection group was 74%. Conclusions. En-bloc resection of colorectal cancer with adjacent urological organs has a high morbidity rate. However it is still possible to achieve negative resection margins in most cases.

4

The effect of hyperosmolar stimuli and cyclophosphamide on the culture of normal rat urothelial cells in vitro

63%

Juszczak K. , Kaszuba-Zwoinska J. , Chorobik P. , Ziomber A. , Thor P. J.

Cellular and Molecular Biology Letters

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2012

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tom 17

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nr 2

EN

Highly concentrated urine may induce a harmful effect on the urinary bladder. Therefore, we considered osmolarity of the urine as a basic pathomechanism of mucosal damage. The influence of both cyclophosphamide (CYP) and hyperosmolar stimuli (HS) on the urothelium are not well described. The purpose was to evaluate the effect of CYP and HS on rat urothelial cultured cells (RUCC). 15 Wistar rats were used for RUCC preparation. RUCC were exposed to HS (2080 and 3222 mOsm/l NaCl) for 15 min and CYP (1 mg/ml) for 4 hrs. APC-labelled annexin V was used to quantitatively determine the percentage of apoptotic cells and propidium iodide (PI) as a standard flow cytometric viability probe to distinguish necrotic cells from viable ones. Annexin V-APC (+), annexin V-APC and PI (+), and PI (+) cells were analysed as apoptotic, dead, and necrotic cells, respectively. The results were presented in percentage values. The flow cytometric analysis was done on a FACSCalibur Flow Cytometer using Cell-Quest software. Treatment with 2080 and 3222 mOsm/l HS resulted in 23.7 ± 3.9% and 26.0 ± 1.5% apoptotic cells, respectively, 14.3 ± 1.4% and 19.4 ± 2.7% necrotic cells, respectively and 60.5 ± 1.4% and 48.6 ± 5.3% dead cells, respectively. The effect of CYP on RUCC was similar to the effect of HS. After CYP the apoptotic and necrotic cells were 23.1 ± 0.3% and 17.9 ± 7.4%, respectively. The percentage of dead cells was 57.7 ± 10.8%. CYP and HS induced apoptosis and necrosis in RUCC. 3222 mOsm/l HS had the most harmful effect based on the percentage of necrotic and apoptotic cells.

5

Applicability of endoscopic examination as a diagnostic approach in urinary tract ailments in dogs

63%

Holak P. , Nowicki M. , Adamiak Z. , Kasprowicz A.

Polish Journal of Veterinary Sciences

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2007

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tom 10

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nr 4

EN

The purpose of this study was to evaluate the applicability of endoscopic examination as a diagnostic method in urethra and bladder ailments in dogs. The experiment involved 60 dogs of different breeds and gender, weighing from 5 to 65 kg, aged between 7 months and 12 years. The dogs were divided into two groups. Group I consisted of clinically healthy animals on which all the lower urinary tract endoscopic examinations described in the literature as well as biopsies of mucosa were performed. Group II consisted of clinical patients, on which endoscopic diagnostic examination was conducted and, on some of them, biopsies for histopathologic examination were made. The results of the experiment suggest that the lower urinary track endoscopy is a suitable diagnostic technique for recognition and differentiation of mucosa inflammation, establishment of causes of haematuria, diagnostics of neoplasms and detection of the existence of an ectopic ureter. Biopsy and histopathologic examination improved the diagnostic value of endoscopy. The techniques tested in our study, inclusive of more invasive method like PPC and cystoscopy on males preceded by the perineal urethrotomy, enable doctors to perform the lower urinary tract endoscopic examination on dogs, especially up to 5 kg. regardless of their gender.

6

Contact problem in biomechanics of bladder

63%

Kren J. , Zan J.

Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska

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2004

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tom z. 25

93-96

EN

The paper deals with an introduction to the modelling of the ureter contraction process in the bladder wall. In this contribution we limit ourselves to the plane case of the simplified mathematical model of this problem. The wall of bladder featured by non-linear elastic properties undertakes large strains. When fully extended the bladder attains the shape of a citron and ureter is full closure. Solving this problem the finite element method is applied for the space discretization of continuums and for the solution of a system of non-linear algebraic equations an iterative Newton-Raphson's method is used.

7

Evaluation of feature detectors for bladder fluorescence images

63%

Neuman B. , Sawicki D.

Przegląd Elektrotechniczny

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2010

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tom R. 86, nr 1

192-194

EN

Images of bladder fluorescence endoscopy are different from generic ones. Up to now there was no evaluation of feature detectors based on such images. In this paper seven popular algorithms were compared.

PL

Zdjęcia wykonane podczas endoskopii fluorescencyjnej różnią się od zwykłych zdjęć. Dotychczasowe porównania nie uwzględniały zdjęć wykonanych w niebieskim świetle. W pracy porównano siedem popularnych algorytmów ekstrakcji cech.

8

Urodynamic effects of the bladder C-fiber afferent activity modulation in chronic model of overactive bladder in rats

63%

Juszczak K. , Ziomber A. , Wyczolkowski M. , Thor P. J.

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nr 4

85-91

EN

Previous studies have suggested that, different types of unmyelinated bladder afferent C-fibres, such as capsaicin-sensitive and capsaicin-resistant mediate the voiding reflex in overactive bladder (OAB). Considering its polymodal features, we explored the urodynamic effect of primary afferent neurons modulation on detrusor activity in normal and OAB rats. Experiments were performed on 48 female rats. OAB was induced by intraperitoneal administration of cyclophosphamide. All the surgical procedures and urodynamic studies were performed under urethane anaesthesia. Cystometry was done after a 1 h recovery period from the surgical procedure. All animals were randomly divided into six groups: control, chronic OAB, chronic OAB after capsaicin or lidocaine instillation, control capsaicin or lidocaine instillation. The measurements represent the average of five bladder micturition cycles. We analyzed: basal, threshold, micturition voiding pressure; intercontraction interval; compliance; functional bladder capacity; motility index; detrusor overactivity index. We used chronic cyclophosphamide OAB model for further investigations. In healthy rats, intravesical instillation of capsaicin caused complete inhibition of detrusor contractility preventing from proper voiding function of the bladder. Contrary, lidocaine has no influence on micturition cycles in intact animals. Also, intravesical instillation of capsaicin and lidocaine reduced the severity of detrusor overactivity of OAB rats leading to improvement of cystometric parameters.

9

Do mesenchymal stem cells modulate the milieu of reconstructed bladder wall?

63%

Pokrywczynska M. , Jundzill A. , Bodnar M. , Adamowicz J. , Tworkiewicz J. , Szylberg L. , Debski R. , Marszalek A. , Drewa T.

Archivum Immunologiae et Therapiae Experimentalis

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2013

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tom 61

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nr 6

10

Oligosaccharide structures of N-cadherin from human normal and cancer bladder cell lines by matrix-assisted laser desorption mass spectrometry

51%

Hoja-Lukowicz D. , Litynska A. , Amoresano A. , Ciolczyk-Wierzbicka D. , Laidler P.

Acta Biologica Cracoviensia. Series Zoologia

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2007

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tom 49

31-39

11

Noradrenaline and ATP: contransmitters and neuromodulators

44%

Burnstock G.

Journal of Physiology and Pharmacology

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1995

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tom 46

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nr 4

12

Peanut agglutinin [PNA] binding glycoproteins on human urothelial cell lines of different grades of transformation

44%

Dus D. , Ugorski M. , Gorczyca W. , Radzikowski C.

Archivum Immunologiae et Therapiae Experimentalis

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1995

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tom 43

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nr 5-6