Canadian Journal of Urology, Vol.14, No.4, pp. 3616-3620, 2007

Abstract Objective: The current standard of care for radiographically identified enhancing renal lesions is surgical removal. However, some of these lesions prove to be benign and did not truly warrant extirpation. Mass size has been traditionally described as a parameter to predict the malignant potential. We compiled our experience with surgically treated renal masses and correlated lesion size with final pathology.
Materials and methods: We performed a retrospective analysis of extirpative renal surgery and resultant renal mass pathology from 1998-January 2006. Nephrectomies performed for non-malignant disease or transitional cell carcinomas were excluded. Renal tumors were staged by the… More >

R. Canabarro^1,2, H. Sporleder², T. Gomes^3,4, G. Zanatta^3,5, L. Scribel^3,6, F. Freitas⁷, J. Neumann², P. Pranke^1,3

BIOCELL, Vol.31, No.3, pp. 397-403, 2007, DOI:10.32604/biocell.2007.31.397

Abstract The use of umbilical cord blood stem cells is an efficient alternative for the transplantation of hematopoietic progenitor cells. A number of factors can influence the volume and amount of CD34⁺ cells, which are considered as immature and capable of proliferation. Quantification of CD34⁺ cells, evaluation of CD38 and c-kit molecules on these cells, as well as correlations of such factors as maternal age, gestational age, newborn sex and weight, umbilical cord length, placental weight with increased volume and concentration of immature cells, among others, were performed in 70 blood samples from term newborns. The mean… More >

LETTY MARCANO, INGRID CARRUYO, YUSMARY FERNÁNDEZ, XIOMARA MONTIEL, ZAIDA TORREALBA.

BIOCELL, Vol.30, No.2, pp. 259-267, 2006, DOI:10.32604/biocell.2006.30.259

Abstract The vanadium is a metal that presents great interest from the toxicological point of view, because of the numerous alterations that can take place in different biological systems. This work evaluated the capacity of vanadium accumulation and its correlation with genotoxic effects in root cells of Allium cepa L. The bulbs were cultivated in renovated filtered water each 24 h, at a temperature of 25 ± 0.5°C, in darkness and constant aeration. Treatments were carried out under the same experimental conditions, using water solutions of vanadium of 25, 50, 75 and 100μg/g for 0, 12, 24,… More >

H.K. Mebatsion¹, P. Verboven¹, Q. T. Ho¹, F. Mendoza¹, B. E. Verlinden², T. A. Nguyen¹, B. M. Nicolaï^1,2

CMES-Computer Modeling in Engineering & Sciences, Vol.14, No.1, pp. 1-14, 2006, DOI:10.3970/cmes.2006.014.001

Abstract Modeling plant microstructure is of great interest to food engineers to study and explain material properties related to mass transfer and mechanical deformation. In this paper, a novel ellipse tessellation algorithm to generate a 2D geometrical model of apple tissue is presented. Ellipses were used to quantify the orientation and aspect ratio of cells on a microscopic image. The cell areas and centroids of each cell were also determined by means of a numerical procedure. These characteristic quantities were then described by means of probability density functions. The model tissue geometry was generated from the… More >

Ethan D. Grober, John Tsihlias, Michael A. S. Jewett, Joan M. Sweet, Andrew J. Evans, John Trachtenberg, Mike Robinette, Robert K. Nam

Canadian Journal of Urology, Vol.11, No.1, pp. 2157-2162, 2004

Abstract Objectives: To correlate the primary Gleason pattern among patients with biopsy-derived Gleason 7 tumors with the radical prostatectomy specimen Gleason grading and other clinical and pathologic outcomes.
Methods and materials: Among 474 patients who underwent radical prostatectomy for clinically localized prostate cancer between 1997-2001, 205 (43%) had Gleason 7/10 tumors on pre-operative needle biopsy. Among these patients, 148 (72.2%) were assigned a primary Gleason 3 pattern (3+4=7) and 57 (27.8%) were assigned a primary Gleason 4 pattern (4+3=7). The two groups were compared with respect to age, serum PSA levels, Gleason grade in the radical prostatectomy specimen,… More >