Search

Introduction: This study aimed to evaluate the chronologic changes in renal function after laparoscopic partial (LPN) or radical nephrectomy (LRN) in patients with clinical T1 renal cell carcinoma. Methods: In this retrospective study, patients with clinical stage T1 renal cell carcinoma who underwent LPN or LRN were divided into three groups, namely, LPN‐A group including LPN patients with WIT ≤25 minutes, LPN‐B group including LPN patients with WIT >25 minutes, and LRN group. Perioperative complications that occurred within 30 days after surgery were retrieved. All patients were followed‐up every 3 months to evaluate the estimated glomerular filtration rate. The primary endpoint of this study was to assess the chronological changes in renal function after surgery. Results: A total of 153 patients were enrolled in this study. The change in estimated glomerular filtration rate between day 1 and 2 weeks after surgery was significantly lower in the LPN‐B group than in the LPN‐A group (p<0.005). Both LPN‐A and ‐B groups achieved eGFR ≥90% 2 weeks after surgery. In addition, the estimated glomerular filtration rate decline from post‐operative day 1 through 24 months in the LPN‐A group or the LPN‐B group was significantly smaller than that in the LRN group (P < 0.001, P < 0.001, respectively). Conclusion: Our results demonstrate the efficacy and safety of LPN in patients with T1 renal cell carcinoma. Although complication rates were similar in both groups, post‐operative renal function was not different between the LPN‐A and ‐B groups [ABSTRACT FROM AUTHOR]

Radical cystectomy remains the gold standard for treatment of muscle‐invasive bladder cancer. Robot‐assisted radical cystectomy has technical advantages over laparoscopic radical cystectomy and has emerged as an alternative to open radical cystectomy. Despite the advancements in robotic surgery, experience with total intracorporeal reconstruction of urinary diversion remains limited. Most surgeons have carried out the hybrid approach of robot‐assisted radical cystectomy and extracorporeal reconstruction of urinary diversion, as intracorporeal reconstruction of urinary diversion remains technically challenging. However, intracorporeal reconstruction of urinary diversion might potentially proffer additional benefits, such as decreased fluid loss, reduction in estimated blood loss and a quicker return of bowel function. The adoption of intracorporeal ileal neobladder reconstruction has hitherto been limited to high‐volume academic institutions. In the present review, we compare the totally intracorporeal robot‐assisted radical cystectomy approach with open radical cystectomy and robot‐assisted radical cystectomy + extracorporeal reconstruction of urinary diversion in muscle‐invasive bladder cancer patients. [ABSTRACT FROM AUTHOR]

Objectives To detect microorganisms responsible for male acute urethritis and to define the microbiology of non-gonococcal urethritis. Methods The present study comprised 424 men with symptoms and signs compatible with acute urethritis. Their urethral swabs and first-voided urine underwent detection of the microorganisms. Demographic characteristics and clinical features of Mycoplasma genitalium-, Ureaplasma urealyticum-, Haemophilus influenza-, adenovirus- or Herpes simplex virus-positive monomicrobial non-gonococcal urethritis, or all-examined microorganism-negative urethritis in heterosexual men were compared with urethritis positive only for Chlamydia trachomatis. Results Neisseria gonorrhoeae was detected in 127 men (30.0%). In 297 men with non-gonococcal urethritis, C. trachomatis was detected in 143 (48.1%). In 154 men with non-chlamydial non-gonococcal urethritis, M. genitalium (22.7%), M. hominis (5.8%), Ureaplasma parvum (9.1%), U. urealyticum (19.5%), H. influenzae (14.3%), Neisseria meningitidis (3.9%), Trichomonas vaginalis (1.3%), human adenovirus (16.2%), and Herpes simplex virus types 1 (7.1%) and 2 (2.6%) were detected. Although some features of monomicrobial non-chlamydial non-gonococcal urethritis or all-examined microorganism-negative urethritis were significantly different from those of monomicrobial chlamydial non-gonococcal urethritis, most features were superimposed. Conclusions Predicting causative microorganisms in men with non-gonococcal urethritis based on demographic and clinical features is difficult. However, the present study provides useful information to better understand the microbiological diversity in non-gonococcal urethritis, and to manage patients with non-gonococcal urethritis appropriately. [ABSTRACT FROM AUTHOR]

Objectives: Acute epididymitis is often associated with urethritis. Mycoplasma genitalium and Ureaplasma urealyticum have been considered as pathogens of urethritis. The aim of the present study was to determine the prevalence of these microorganisms in men with acute epididymitis. Method: A total of 56 men younger than 40 years-of-age with acute epididymitis were enrolled in the present study between January 2006 and June 2010. First-void urine specimens were subjected to culture of aerobic bacterial species, and examined for the presence of Chlamydia trachomatis, M. genitalium, M. hominis, U. parvum and U. urealyticum by polymerase chain reaction-based assays. Urethral swabs were cultured for Neisseria gonorrhoeae. Results: The number and percentage of patients positive for each microorganism were as follows: Gram-negative bacilli, 2% and 3.6%; Gram-positive cocci, 23% and 41.1%; N. gonorrhoeae, 3% and 5.4%; C. trachomatis, 28% and 50.0%; M. genitalium, 5% and 8.9%; M. hominis, 6% and 10.7%; U. parvum, 6% and 10.7%; and U. urealyticum, 5% and 8.9%. Among 25 men with non-chlamydial non-gonococcal epididymitis, who were negative for Gram-negative bacilli, M. genitalium or U. urealyticum was detected in one man each (4.0%), and M. hominis and/or U. parvum was detected in five (20.0%). Conclusion: In men younger than 40 years-of-age with acute epididymitis, C. trachomatis is a major pathogen. The prevalence of genital mycoplasmas and ureaplasmas are lower, and the role of genital mycoplasmas and ureaplasmas in the development of acute epididymitis remains to be determined. [ABSTRACT FROM AUTHOR]

Thyroidization (thyroid-like appearance) in renal tissue which is made up of a colloid-like hyaline cast formation of Tamm-Horsfall glycoprotein (THP) is a common finding in chronic pyelonephritis and obstructive nephropathy. This type of pathological change is sometimes observed in renal allograft specimens. We examined allograft specimens for thyroidization and other pathological findings related to thyroidization to characterize the conditions causing such changes. One-hundred three patients who underwent renal transplantation between January 2006 and April 2008 at Gifu University Hospital (251 renal allograft biopsy specimens) were enrolled in this study. Sixteen patients had thyroidization (11 mild, 4 moderate, and 1 severe). In four patients, THP reflux on Bowman’s capsule was found, and in three patients interstitial THP deposits were observed. In four patients, tubulointerstitial nephritis was diagnosed. Fifteen of 16 patients were examined for vesicoureteral reflux (VUR) with voiding cystourethrography. Three of 15 patients had VUR. In the past medical histories of the 16 patients with thyroidization, three had low capacity bladders, two had prostate diseases, and six had previous urinary tract infections. In cases of thyroidization with additional findings, including THP reflux into Bowman’s space and interstitial THP deposits, we need to examine the patients for the presence of urinary tract diseases. In cases of thyroidization and tubulointerstitial nephritis urinary tract infections were suspected. Such subclinical urological diseases in the grafts might affect the prognosis of renal function. Therefore, appropriate management of urinary tract diseases is required. [ABSTRACT FROM AUTHOR]

Arabidopsis TOM1 (AtTOM1) and TOM2A (AtTOM2A) are integral membrane proteins genetically identified to be necessary for efficient intracellular multiplication of tobamoviruses. AtTOM1 interacts with the helicase domain potypeptide of tobamovirus- encoded replication proteins and with AtTOM2A, suggesting that both AtTOM1 and AtTOM2A are integral components of the tobamovirus replication complex. We show here that AtTOM1 and AtTOM2A proteins tagged with green fluorescent protein (GFP) are targeted to the vacuolar membrane (tonoplast)- like structures in plant cells. In subcellular fractionation analyses, GFP-AtTOM2A, AtTOM2A and its tobacco homolog NtTOM2A were predominantly fractionated to tow-density tonoplast-rich fractions, whereas AtTOM1-GFP, AtTOM1 and its tobacco homolog NtTOM1 were distributed mainly into the tonoplast-rich fractions and partially into higher- buoyant-density fractions containing membranes from several other organelles. The tobamovirus-encoded replication proteins were co-fractionated with both NtTOM1 and viral RNA-dependent RNA polymerase activity. The replication proteins were also found in the fractions containing non-membrane-bound proteins, but neither NtTOM1 nor the polymerase activity was detected there. These observations suggest that the formation of tobamoviral RNA replication complex occurs on TOM1-containing membranes and is facilitated by TOM2A. [ABSTRACT FROM AUTHOR]

The Ca2+-transport activity and intracellular localization of the translation product of cDNA for mung bean Ca2+/H+ antiporter (VCAX1) were examined. When the cDNA was expressed in Saccharomyces cerevisiae that lacked its own genes for vacuolar Ca2+-ATPase and the antiporter, VCAX1 complemented the active Ca2+ transporters, and the microsomal membranes from the transformant showed high activity of the Ca2+/H+ antiporter. Treatment of the vacuolar membranes with a cross-linking reagent resulted in a clear band of the dimer detected with antibody specific for VCAX1p. The antibody was also used for immunolocalization of the antiporter in fractions obtained by sucrose-density-gradient centrifugation of the microsomal fraction from mung bean. The immunostained band was detected in the vacuolar membrane fraction and the slightly heavy fractions that exhibited activity of the Golgi marker enzyme. A fusion protein of VCAX1p and green fluorescent protein was expressed in tobacco cells. The green fluorescence was clearly observed on the vacuolar membrane and, in some cases, in the small vesicles. The subcellular fractionation of transformed tobacco cells confirmed the vacuolar membrane localization of the fusion protein. These results confirm that VCAX1p functions in the vacuolar membrane as a Ca2+/H+ antiporter and also suggest that VCAX1p may exist in the Golgi apparatus. [ABSTRACT FROM AUTHOR]