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1.
Microbiol Resour Announc ; 8(30)2019 Jul 25.
Article in English | MEDLINE | ID: mdl-31346026

ABSTRACT

Mycobacteriophages Candle, Schatzie, Sumter, and Waleliano were isolated from soil using the host bacterium Mycobacterium smegmatis mc2155. Candle, Schatzie, and Sumter were discovered in Alabama and Waleliano in Maryland. The bacteriophages have been assigned clusters based on nucleotide similarity, as follows: Candle, R; Schatzie, J; Sumter, A1; and Waleliano, B4.

2.
Article in English | MEDLINE | ID: mdl-30533760

ABSTRACT

Bacteriophages Kwksand96 and Cane17 were isolated from Mycobacterium smegmatis mc2155. M. smegmatis is host to the highest number of phages analyzed from one species. Both mycobacteriophages were isolated from soil in west Alabama. Kwksand96 and Cane17 belong to subclusters B1 and C1, respectively, based on mycobacteriophage nucleotide sequence similarity.

3.
Genome Announc ; 6(4)2018 Jan 25.
Article in English | MEDLINE | ID: mdl-29371367

ABSTRACT

The bacteriophage Demsculpinboyz was discovered in a soil sample from the Black Belt region of Alabama using Mycobacterium smegmatis mc2155 as its host. The genome is 57,437 bp long and contains 116 protein-coding genes. It belongs to the F2 subcluster, which has only five other members.

4.
Cochrane Database Syst Rev ; (2): CD007091, 2008 Apr 16.
Article in English | MEDLINE | ID: mdl-18425978

ABSTRACT

BACKGROUND: Five-alpha-reductase inhibitors (5ARI) are frequently used to treat bothersome lower urinary tract symptoms associated with benign prostatic hyperplasia and male androgenic alopecia. They have potential as chemopreventive agents. OBJECTIVES: We sought to estimate the effectiveness and harms of 5ARI in preventing prostate cancer. SEARCH STRATEGY: MEDLINE, PreMEDLINE, and the Cochrane Collaboration Library were searched through April 2007 to identify randomized trials. SELECTION CRITERIA: For prostate cancer outcomes we included randomized controlled trials of at least 1 year in duration published after 1984. For non-prostate cancer outcomes, randomized trials were included if: they were at least 6 months in duration published after 1999. DATA COLLECTION AND ANALYSIS: The primary outcome was prostate cancer period-prevalence "for-cause." "For-cause" was defined as prostate cancer clinically detected based on symptoms, an abnormal digital rectal exam, or detected as a result of an abnormal prostate specific antigen value. Trials were categorized as long (> 2 year), mid (1-2 years) and short (< 1 year) term. MAIN RESULTS: Nine trials reported prostate cancer period-prevalence. Three trials using finasteride lasted 4 years or longer but only one (the Prostate Cancer Prevention Trial) was specifically designed to assess the impact of 5ARI on prostate cancer period-prevalence. The mean age of enrollees was 64.6 years, 91% were white, mean PSA was 2.1 ng/mL. For-cause prostate cancers comprised 54% of all cancers detected. Finasteride was associated with a 26% relative risk reduction in prostate cancers detected for-cause among all randomized subjects (relative risk 0.74 [95% CI 0.67 to 0.83]; absolute risk reduction = 1.4% (3.5% versus 4.9%). Six trials assessed prostate cancers detected overall with a pooled 26% relative reduction favoring 5ARI (relative risk 0.74 [95% CI 0.55 to1.00]; 2.9% absolute reduction (6.3% versus 9.2%). Reductions were observed regardless of age, race or family history of prostate cancer but not among men with baseline PSA > 4.0 ng/mL. A greater number of high Gleason score tumors (7-10 or 8-10) occurred in men on finasteride in the PCPT. Impaired sexual or erectile function or endocrine effects were more common with finasteride than placebo. AUTHORS' CONCLUSIONS: 5ARI reduce prostate cancer risk but may increase the risk of high-grade disease in men who are undergoing regular screening for prostate cancer using prostate specific antigen and digital rectal examination. Effects are consistent across race, family history and age and possibly 5ARI but were limited to men with baseline PSA values <4.0 ng/mL. The impact of 5ARI on absolute or relative rates of prostate cancer in men who are not being regularly screened is not clear. Information is inadequate to assess the impact of 5ARI on mortality.


Subject(s)
5-alpha Reductase Inhibitors , Enzyme Inhibitors/therapeutic use , Prostatic Neoplasms/prevention & control , Finasteride/therapeutic use , Humans , Male , Prostate-Specific Antigen/blood , Prostatic Hyperplasia/drug therapy , Randomized Controlled Trials as Topic
5.
Actas urol. esp ; 31(9): 1045-1055, oct. 2007. ilus, tab
Article in Es | IBECS | ID: ibc-058368

ABSTRACT

Introducción: La introducción de la cirugía laparoscópica como medio de realizar la prostatectomía radical precisa de un método objetivo para evaluar la idoneidad de este nuevo procedimiento quirúrgico. Los parámetros tradicionales, incluidos la incidencia de márgenes quirúrgicos positivos, son útiles, pero no suficientemente objetivos. Diferentes autores publican distintos criterios para definir los márgenes quirúrgicos positivos. Además, existen algunos artefactos técnicos que pueden ocurrir durante el procesamiento de la pieza quirúrgica por el patólogo, los cuales pueden dar lugar a márgenes falsamente positivos. Hemos usado un programa de modelización por ordenador acoplado al escaneado de las imágenes seriadas de cortes histológicos de la glándula completa, con el fin de determinar el porcentaje del tejido extracapsular que rodea a las glándulas prostáticas, tanto las extirpadas mediante la técnica abierta retropúbica como las extirpadas mediante laparoscopia. Este porcentaje puede considerarse un parámetro objetivo que potencialmente pueda predecir el beneficio de la cirugía en cuanto al control del cáncer, así como el éxito clínico del procedimiento quirúrgico. La correlación con los resultados clínicos a largo plazo, - supervivencia y recidiva bioquímica -servirán para validar en última instancia la utilidad clínica de este parámetro en años venideros. Materiales y métodos: Para este estudio se dispuso de un total de 32 piezas quirúrgicas de la próstata, incluidas 15 piezas de próstata de pacientes sometidos a prostatectomía radical abierta y 17 piezas de próstata de pacientes sometidos a prostatectomía laparoscópica. Después de la cirugía y de 24 horas de fijación en formol, se tomaron cortes seriados para realizar secciones completas (“whole mount”) de la próstata a intervalos de 5 mm de grosor. Un patólogo experto en uropatología revisó las secciones completas y dibujó los contornos de la cápsula prostática y del tumor en cada corte tisular. Las imágenes seriadas de la glándula completa y del tejido peri o extraprostático circundante se escanearon para producir imágenes digitales, utilizándose un programa informático para crear un archivo con información sobre la cápsula y un archivo con información sobre el tejido fibroadiposo circundante (extraprostático). Estos procedimientos permitieron la reconstrucción de un modelo tisular tridimensional de la cápsula prostática y del tejido extraprostático circundante. Se generaron dos archivos de nubes de puntos por separado, con la intención de representar modelos tanto de la cápsula como del tejido extraprostático y se usaron algoritmos de software para generar diferencias en las nubes de puntos y, de este modo, cuantificar la magnitud de la cobertura del tejido extracapsular, un parámetro que consideramos indicativo de la idoneidad de la técnica quirúrgica. Resultados: El porcentaje global de superficie de la glándula prostática cubierto por tejido fibroadiposo extracapsular fue estadísticamente mayor en las piezas extirpadas mediante la técnica laparoscópica, en comparación con la técnica retropúbica. Cuando se evaluó un análisis segmentario del porcentaje de cobertura de la glándula, se encontró que el porcentaje era significativamente mayor en los segmentos apical e inferolateral de las glándulas extirpadas sin preservación de los nervios y en el segmento apical de las glándulas extirpadas con preservación de los nervios para la prostatectomía laparoscópica. Conclusiones: En nuestra serie, la prostatectomía laparoscópica aportó una cobertura tisular extracapsular superior a la prostatectomía retropúbica. Del mismo modo, la prostatectomía laparoscópica aportó una cobertura tisular superior en las regiones inferolateral y apical de las glándulas extirpadas sin preservación de los nervios y en la región apical de las glándulas extirpadas con preservación de los nervios. Así pues, la idoneidad quirúrgica de esta técnica, en comparación con el procedimiento retropúbico, parece ser superior


Introduction: The introduction of laparoscopic surgery as a procedure to perform radical prostatectomy needs an objective method to evaluate the suitability of this new surgical procedure. The traditional parameters, including the incidence of positive surgical margins, are useful, but not sufficiently objective. Different authors publish different criteria to define positive surgical margins. In addition, there are some technical problems that may ocur during the processing of the surgical specimen by the pathologist, which can give false positive margins. We have used a computer modeling software in connection to scanned images from serial sections of the whole gland, to determine the percentage of extracapsular tissue that surrounds the prostate glands, removed by both, open retropubic and laparoscopic procedures. This percentage can be considered as an objective parameter which can potentially predict the benefit of surgery in predicting cancer control, as well as the clinical success of the surgical procedure. The correlation with the clinical results in the long term, survival and biochemical recurrence, will be useful to validate as a last resort the clinical utility of this parameter in the coming years. Materials and Methods: We had a total of 32 prostate surgical specimens, 15 from patients who underwent open retropubic prostatectomy and 17 from patients who underwent laparoscopic prostatectomy for this study. After surgery and 24 hours formol fixation, serial cuts were taken at 5 mm thickness intervals to make complete sections (“whole mount”) of the prostate. An expert uropathologist reviewed all the surgical sections and drew in each tissue cut the prostatic capsule and tumor contours. The serial images of the whole gland and surrounding prostate tissue were scanned to produce digital images, using a computer software to create a file with capsule information and a file with information on the surrounding fibroadipose tissue (extraprostatic). These procedures allowed the reconstruction of a threedimensional tissue model of the prostatic capsule and the surrounding extraprostatic tissue. Two separate point clouds files were generated, with the purpose of representing capsule and extraprostatic tissue models and software algorithms were used to generate differences in point clouds and thereby quantifying the extracapsular tissue coverage dimension, a parameter that we considered indicative of the adequeacy and feasibility of the surgical procedure. Results: The global percentage of prostate gland surface covered by extracapsular fibroadipose tissue was statistically higher in specimens removed by a laparoscopic procedure when compared to the open retropubic procedure. When a segmental analysis of the gland percentage of coverage was evaluated, it was found this percentage was significantly higher in the apical and inferolateral segments of those glands removed without nerves preservation and in the apical segments of those glands removed with nerves preservation for the laparoscopic prostatectomy. Conclusions: In our series, laparoscopic prostatectomy contributed superior extracapsular tissue coverage than retropubic prostatectomy. Similarly laparoscopic prostatectomy produced a superior tissue coverage in inferolateral and apical regions on those glands removed without nerve preservation and in the apical regions of those glands removed with nerve preservation


Subject(s)
Male , Humans , Prostatectomy/methods , Prostatectomy/trends , Transurethral Resection of Prostate/methods , Laparoscopy/methods , Prostate/pathology , Prostate/surgery , Image Processing, Computer-Assisted/methods
6.
Actas Urol Esp ; 31(9): 1045-55, 2007 Oct.
Article in Spanish | MEDLINE | ID: mdl-18257372

ABSTRACT

INTRODUCTION: The introduction of laparoscopic surgery as a procedure to perform radical prostatectomy needs an objective method to evaluate the suitability of this new surgical procedure. The traditional parameters, including the incidence of positive surgical margins, are useful, but not sufficiently objective. Different authors publish different criteria to define positive surgical margins. In addition, there are some technical problems that may ocur during the processing of the surgical specimen by the pathologist, which can give false positive margins. We have used a computer modeling software in connection to scanned images from serial sections of the whole gland, to determine the percentage of extracapsular tissue that surrounds the prostate glands, removed by both, open retropubic and laparoscopic procedures. This percentage can be considered as an objective parameter which can potentially predict the benefit of surgery in predicting cancer control, as well as the clinical success of the surgical procedure. The correlation with the clinical results in the long term--survival and bioche--mical recurrence--will be useful to validate as a last resort the clinical utility of this parameter in the coming years. MATERIALS AND METHODS: We had a total of 32 prostate surgical specimens, 15 from patients who underwent open retropubic prostatectomy and 17 from patients who underwent laparoscopic prostatectomy for this study. After surgery and 24 hours formol fixation, serial cuts were taken at 5 mm thickness intervals to make complete sections ("whole mount") of the prostate. An expert uropathologist reviewed all the surgical sections and drew in each tissue cut the prostatic capsule and tumor contours. The serial images of the whole gland and surrounding prostate tissue were scanned to produce digital images, using a computer software to create a file with capsule information and a file with information on the surrounding fibroadipose tissue (extraprostatic). These procedures allowed the reconstruction of a three dimensional tissue model of the prostatic capsule and the surrounding extraprostatic tissue. Two separate point clouds files were generated, with the purpose of representing capsule and extraprostatic tissue models and software algorithms were used to generate differences in point clouds and thereby quantifying the extracapsular tissue coverage dimension, a parameter that we considered indicative of the adequeacy and feasibility of the surgical procedure. RESULTS: The global percentage of prostate gland surface covered by extracapsular fibroadipose tissue was statistically higher in specimens removed by a laparoscopic procedure when compared to the open retropubic procedure. When a segmental analysis of the gland percentage of coverage was evaluated, it was found this percentage was significantly higher in the apical and inferolateral segments of those glands removed without nerves preservation and in the apical segments of those glands removed with nerves preservation for the laparoscopic prostatectomy. CONCLUSIONS: In our series. laparoscopic prostatectomy contributed superior extracapsular tissue coverage than retropubic prostatectomy. Similarly laparoscopic prostatectomy produced a superior tissue coverage in inferolateral and apical regions on those glands removed without nerve preservation and in the apical regions of those glands removed with nerve preservation. Therefore, the surgical suitability of this technique, when compared to the retropubic, seems to be higher


Subject(s)
Image Processing, Computer-Assisted/methods , Imaging, Three-Dimensional , Laparoscopy , Prostate/pathology , Prostatectomy/methods , Prostatic Neoplasms/pathology , Prostatic Neoplasms/surgery , Humans , Male
9.
Urologe A ; 41(2): 107-12, 2002 Mar.
Article in German | MEDLINE | ID: mdl-11993087

ABSTRACT

Once laparoscopic radical prostatectomy has been mastered, the step to performing a radical cystectomy is not that far. The challenge is to create the urinary diversion by laparoscopy. In this report we describe our experience with 11 laparoscopic radical cystectomies and intracorporeal construction of a continent urinary diversion (Mainz pouch II) as a treatment option in patients with muscle-invading bladder cancer. All 11 procedures could be performed successfully. A conversion to open surgery was not required in any case. The mean surgery time was 6.7 h. Except for two pouch fistulas we did not observe any intra- or postoperative complications. The functional as well as the oncological results are convincing. Less morbidity and faster recovery are the main advantages of this minimally invasive procedure. In addition, the low levels of blood loss, fluid shifts, and electrolyte loss considerably reduce cardiovascular stress. Radical cystectomy and construction of a continent urinary diversion represent the limit of technically feasible laparoscopy and should be done exclusively in specialized centers.


Subject(s)
Carcinoma, Transitional Cell/surgery , Cystectomy/trends , Laparoscopy/trends , Urinary Bladder Neoplasms/surgery , Urinary Reservoirs, Continent/trends , Aged , Carcinoma, Transitional Cell/pathology , Feasibility Studies , Female , Forecasting , Humans , Male , Middle Aged , Neoplasm Staging , Postoperative Complications/etiology , Urinary Bladder Neoplasms/pathology
10.
J Urol ; 166(5): 1702-6, 2001 Nov.
Article in English | MEDLINE | ID: mdl-11586206

ABSTRACT

PURPOSE: The long natural history of early stage prostate cancer is well recognized and a conservative approach to the treatment of elderly men is often encouraged. We assessed the ability of patients and physicians to adhere to a policy of watchful waiting in the prostate specific antigen (PSA) era. MATERIALS AND METHODS: We retrospectively reviewed the records of all 199 men with stages T1-2 prostate cancer and PSA less than 20 ng./ml. who in our practice elected watchful waiting. Median followup in the population overall was 3.4 years. We performed Kaplan-Meier actuarial analysis of overall and disease specific survival, and most pertinent survival free from therapy. A questionnaire was administered to record the attitude of patients who ultimately proceeded to treatment to determine how therapy was triggered. RESULTS: Median patient age was 71 years and median PSA was 6.6 ng./ml. The tumor was impalpable in 52% of patients, Gleason sum was 6 or less in 80% and 11% used some form of herbal remedy or nutritional supplementation. Of the 37 men who died during observation, including 35 of co-morbid illness, only 6 underwent treatment. Overall survival at 5 and 7 years was 77% and 63% but disease specific survival was 98% and 98%, respectively. A total of 64 patients underwent treatment and actuarial freedom from treatment was 56% at 5 years, including 51% and 73% in those younger and older than 75 years at diagnosis. The likelihood of being alive and free from treatment was 43% at 5 years and 26% at 7. Of the 63 men treated 48 (76%) underwent radical therapy (brachytherapy in 17, external beam radiotherapy in 29 and prostatectomy in 2), while only 24% received androgen deprivation. The median PSA increase from diagnosis to treatment in treated patients was 2.9 ng./ml., and it was 0.9 ng./ml. from diagnosis to the last followup in those not treated. Of the treated patients 81% believed that the physician had initiated therapy due to a PSA increase or a nodule. However, physicians recorded having advocated treatment in only 24% of cases. CONCLUSIONS: When patients do not die of co-morbid illness, they are likely to proceed to therapy well within the first decade after diagnosis (57% by 5 years and 74% by 7). Therapy was usually definitive (radical) and triggered by slight, inevitable PSA increases. The patient perception was that the physicians initiated therapy in response to increasing PSA. However, the physicians more often perceived that treatment was initiated by patients. Therefore, watchful waiting in the PSA era often represents radical therapy delayed by a few years.


Subject(s)
Prostate-Specific Antigen/blood , Prostatic Neoplasms/diagnosis , Prostatic Neoplasms/therapy , Actuarial Analysis , Aged , Comorbidity , Humans , Male , Neoplasm Staging , Prostatectomy , Prostatic Neoplasms/mortality , Prostatic Neoplasms/surgery
13.
Cancer Res ; 61(16): 6029-33, 2001 Aug 15.
Article in English | MEDLINE | ID: mdl-11507047

ABSTRACT

The lack of a sensitive immunoassay for quantitating serum prostate-specific membrane antigen (PSMA) hinders its clinical utility as a diagnostic/prognostic biomarker. An innovative protein biochip immunoassay was used to quantitate and compare serum PSMA levels in healthy men and patients with either benign or malignant prostate disease. PSMA was captured from serum by anti-PSMA antibody bound to ProteinChip arrays, the captured PSMA detected by surface-enhanced laser desorption/ionization mass spectrometry, and quantitated by comparing the mass signal integrals to a standard curve established using purified recombinant PSMA. The average serum PSMA value for prostate cancer (623.1 ng/ml) was significantly different (P < 0.001) from that for benign prostate hyperplasia (117.1 ng/ml) and the normal groups (age <50, 272.9 ng/ml; age >50, 359.4 ng/ml). These initial results suggest that serum PSMA may be a more effective biomarker than prostate-specific antigen for differentiating benign from malignant prostate disease and warrants additional evaluation of the surface-enhanced laser desorption/ionization PSMA immunoassay to determine its diagnostic utility.


Subject(s)
Antigens, Neoplasm/blood , Antigens, Surface , Carboxypeptidases/blood , Immunoassay/methods , Prostatic Hyperplasia/immunology , Prostatic Neoplasms/immunology , Adult , Aged , Aged, 80 and over , Antibodies, Monoclonal , Diagnosis, Differential , Feasibility Studies , Glutamate Carboxypeptidase II , Humans , Male , Mass Spectrometry/methods , Middle Aged , Prostatic Hyperplasia/diagnosis , Prostatic Neoplasms/diagnosis
14.
J Urol ; 166(3): 947-52, 2001 Sep.
Article in English | MEDLINE | ID: mdl-11490252

ABSTRACT

PURPOSE: Brachytherapy with 103palladium (103Pd) is an increasingly administered treatment modality for localized prostate cancer. We compared general and disease specific health related quality of life after 103Pd treatment, radical prostatectomy and external beam radiation therapy given during the same time frame. MATERIALS AND METHODS: We performed a retrospective cross-sectional survey study of patients treated at a single community medical center between 1995 and 1999. We mailed 5 validated health related quality of life survey instruments to 269, 142 and 222 men who underwent radical prostatectomy, 103Pd treatment and external beam radiation therapy, respectively, with a response rate of greater than 80% in all groups. RESULTS: General health related quality of life assessed by the SF-36 showed the same scores in patients who underwent prostatectomy and 103Pd treatment. The University of California-Los Angeles Prostate Cancer Index was used to assess bowel, urinary and sexual function/bothersomeness. External beam radiation therapy reported was associated with worse bowel function and greater bowel bothersomeness. Prostatectomy was associated with worse urinary function compared to 103Pd and external beam radiation therapy. Prostatectomy was associated with worse sexual function than 103Pd or external beam radiation therapy, although nerve sparing surgery and erectile aids minimized the difference. American Urological Association symptom scores were initially higher for 103Pd but became equal to those in the other groups in patients treated greater than 12 months from survey time. Disease-free men who underwent prostatectomy and 103Pd brachytherapy were equally confident that cancer would not recur in the future. Satisfaction rates were equivalent and biochemical failure significantly decreased satisfaction in all groups. CONCLUSIONS: While general health related quality of life was mostly unaffected by the 3 most common treatments for prostate cancer, there were differences in bowel, urinary and sexual function. This information may aid patients in the decision making process.


Subject(s)
Brachytherapy , Prostatectomy , Prostatic Neoplasms/diagnostic imaging , Prostatic Neoplasms/surgery , Quality of Life , Aged , Androgen Antagonists/therapeutic use , Cross-Sectional Studies , Data Collection , Humans , Male , Middle Aged , Prostate-Specific Antigen/blood , Prostatic Neoplasms/blood , Prostatic Neoplasms/psychology , Radiography , Retrospective Studies
15.
Urology ; 58(2 Suppl 1): 10-5, 2001 Aug.
Article in English | MEDLINE | ID: mdl-11502437

ABSTRACT

When addressing the appropriateness of luteinizing hormone-releasing hormone (LHRH) analog monotherapy as a method of androgen deprivation, it is important to look at the alternative option of androgen deprivation by combined androgen blockade (CAB). The randomized control trials studying CAB have been thoroughly analyzed and subjected to meta-analyses that have shown a small but significant difference in survival at 5 years. These findings have been subject to variable interpretations. Much like other treatment-option decisions for prostate cancer, it is mandatory to inform patients fully on the costs and benefits of monotherapy versus CAB and to incorporate the patient's concerns and preferences in the decision-making process. Currently, parameters to identify a subgroup of patients who might specifically benefit from a combined androgen deprivation treatment policy are not available. When using monotherapy, it is necessary to recognize several important facts. Castrate testosterone levels are not achieved or maintained in all patients. For some patients this may be a disadvantage. Additionally, before categorizing a patient as having an androgen-independent tumor, it is important to measure serum testosterone to ensure that LHRH analog monotherapy has achieved and maintained a castrate testosterone level.


Subject(s)
Androgen Antagonists/therapeutic use , Antineoplastic Agents, Hormonal/therapeutic use , Gonadotropin-Releasing Hormone/therapeutic use , Prostatic Neoplasms/drug therapy , Clinical Trials as Topic , Humans , Male , Meta-Analysis as Topic , Prostatic Neoplasms/blood , Prostatic Neoplasms/physiopathology , Receptors, Androgen/physiology , Testosterone/blood , Testosterone/physiology , Treatment Outcome
16.
Am J Pathol ; 158(4): 1491-502, 2001 04.
Article in English | MEDLINE | ID: mdl-11290567

ABSTRACT

Development of noninvasive methods for the diagnosis of transitional cell carcinoma (TCC) of the bladder remains a challenge. A ProteinChip technology (surface enhanced laser desorption/ionization time of flight mass spectrometry) has recently been developed to facilitate protein profiling of biological mixtures. This report describes an exploratory study of this technology as a TCC diagnostic tool. Ninety-four urine samples from patients with TCC, patients with other urogenital diseases, and healthy donors were analyzed. Multiple protein changes were reproducibly detected in the TCC group, including five potential novel TCC biomarkers and seven protein clusters (mass range, 3.3 to 133 kd). One of the TCC biomarkers (3.4 kd) was also detected in bladder cancer cells procured from bladder barbotage and was identified as defensin. The TCC detection rates provided by the individual markers ranged from 43 to 70% and specificities from 70 to 86%. Combination of the protein biomarkers and clusters, increased significantly the sensitivity for detecting TCC to 87% with a specificity of 66%. Interestingly, this combinatorial approach provided sensitivity of 78% for detecting low-grade TCC compared to only 33% of voided urine or bladder-washing cytology. Collectively these results support the potential of this proteomic approach for the development of a highly sensitive urinary TCC diagnostic test.


Subject(s)
Carcinoma, Transitional Cell/diagnosis , Carcinoma, Transitional Cell/urine , Proteome/analysis , Urinary Bladder Neoplasms/diagnosis , Urinary Bladder Neoplasms/urine , Adult , Aged , Aged, 80 and over , Biomarkers, Tumor/chemistry , Biomarkers, Tumor/urine , Carcinoma, Transitional Cell/pathology , Defensins/urine , Humans , Male , Middle Aged , Molecular Weight , Neoplasm Proteins/urine , Pathology/methods , Pathology/trends , Sensitivity and Specificity , Urinary Bladder Neoplasms/pathology
17.
Urology ; 57(4): 727-32, 2001 Apr.
Article in English | MEDLINE | ID: mdl-11306391

ABSTRACT

OBJECTIVES: Combined androgen blockade with medical or surgical castration plus a nonsteroidal antiandrogen for metastatic prostate cancer has been the subject of 20 randomized trials. The findings range from no expected increase in survival in 17 studies to an estimated 3.7 to 7 months' survival improvement noted in 3 studies. Most recently, a 1999 evidence report from the Agency for Healthcare Research and Quality and a 2000 overview from the Prostate Cancer Trialists Collaborative Group indicated that combined androgen blockade was associated with an approximately 3% to 5% increase in 5-year survival. We report herein a systematic review on combined androgen blockade performed by the Cochrane Collaborative Review Group on Prostate Diseases. METHODS: Controlled trials that included a randomization of immediate nonsteroidal antiandrogens with castration versus castration alone for metastatic prostate cancer and provided information on survival were reviewed. Information on overall survival, toxicity, progression-free survival, cancer-specific survival, and type of nonsteroidal antiandrogen and castration therapies was abstracted by two independent reviewers. RESULTS: Twenty trials (n = 6320 patients) were included. The pooled odds ratio (OR) for overall survival with combined androgen blockade was 1.03 (95% confidence interval [CI] 0.85 to 1.25; n = 4970 from 13 trials), 1.16 (95% CI 1.00 to 1.33; n = 5286 from 14 trials), and 1.29 (95% CI 1.11 to 1.50; n = 3550 from 7 trials) at 1, 2, and 5 years, respectively. Progression-free survival was improved at 1 year (OR = 1.38; 95% CI 1.15 to 1.67; n = 2278 from 7 trials). Cancer-specific survival was improved at 5 years (OR = 1.58; 95% CI 1.05 to 2.37; n = 781 from 2 trials). When analysis was limited to studies identified as being of high quality, the pooled OR for overall survival progressively increased but was not significant at any follow-up interval. CONCLUSIONS: We find that there is a 5% improvement in the percentage of men surviving at 5 years (30% vs. 25%) with combined androgen blockade with nonsteroidal antiandrogens as well as improvements in progression-free survival at 1 year. Appropriate patients with metastatic prostate cancer should be informed of the potential benefits, toxicities, and out-of-pocket expenditures.


Subject(s)
Androgen Antagonists/therapeutic use , Flutamide/administration & dosage , Imidazoles/administration & dosage , Imidazolidines , Prostatic Neoplasms/drug therapy , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Chemotherapy, Adjuvant , Disease-Free Survival , Humans , Male , Orchiectomy , Prostatic Neoplasms/mortality , Prostatic Neoplasms/surgery
18.
Urology ; 57(3): 555, 2001 Mar.
Article in English | MEDLINE | ID: mdl-11248646

ABSTRACT

We report the first detailed case of testicular lymphoma managed with chemotherapy and radiation without orchiectomy. A 60-year-old man with Stage II extralymphatic bilateral testicular lymphoma refused orchiectomy, but underwent cyclophosphamide, doxorubicin, vincristine, and prednisone chemotherapy and radiation. He remained disease free for 52 months, when a solitary central nervous system relapse to the vitreous humor was diagnosed. The optimal therapy for testicular lymphoma is unclear but often includes orchiectomy with adjuvant chemotherapy and radiation. Stage I testicular lymphoma can be cured by surgery alone; however, the relapse rates for all stages of testicular lymphoma are high despite systemic therapy. For Stage II disease and higher, chemotherapy/radiation is recommended; orchiectomy may not be mandatory.


Subject(s)
Eye Neoplasms/secondary , Lymphoma, B-Cell/therapy , Lymphoma, Non-Hodgkin/therapy , Neoplasms, Multiple Primary/therapy , Testicular Neoplasms/therapy , Vitreous Body , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Combined Modality Therapy , Cyclophosphamide/administration & dosage , Doxorubicin/administration & dosage , Eye Neoplasms/radiotherapy , Humans , Lymph Nodes , Lymphoma, B-Cell/pathology , Lymphoma, Non-Hodgkin/pathology , Male , Middle Aged , Neoplasms, Multiple Primary/pathology , Orchiectomy , Prednisone/administration & dosage , Radiotherapy Dosage , Retroperitoneal Space , Testicular Neoplasms/pathology , Vincristine/administration & dosage
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