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1.
J Assist Reprod Genet ; 33(4): 519-28, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26847133

RESUMEN

PURPOSE: The aim of our paper was to validate a testicular biopsy procedure that simplifies handling, processing, and cryopreservation, while at the same time optimizes sperm motility before freezing and after thawing. METHODS: Two prospective studies were conducted to verify, optimize, and understand the virtues of pre-freeze testicular tissue IVC at different temperatures (21, 30, or 37 °C). Testicular tissue was obtained from clinical specimens designated for whole tissue cryopreservation (i.e., intact mass of tubules) and/or for fresh use in IVF-ICSI cycles. Whole testicular biopsy pieces (1-3 mm(3)) were diluted in glycerol containing freeze solutions, slow cooled to 4 °C and then rapidly frozen in LN2 vapor. Fresh and post-thaw testicular biopsy tissue were evaluated for changes in the quantity (%) and pattern of motility (I-IV: twitching to rapid progression, respectively) over a 1 week duration. The clinical effectiveness of IVC-cryopreserved whole testicular biopsy tissue was also validated analyzing fresh embryo transfers. RESULTS: More reliable recovery of motile testicular sperm was achieved using whole tissue freeze preservation combined with IVC (24-96 h) post-acquisition at an incubation temperature of 30 °C compared to ambient temperature (21 °C) or 37 °C. Up to 85 % of the pre-freeze motility was conserved post-thaw (+3 h) for easy ICSI selection. Sperm longevity was optimized to fresh tissue levels by implementing testicular biopsy sucrose dilution post-thaw. Favorable clinical outcomes were proven using frozen-thawed testicular biopsy sperm for ICSI. CONCLUSIONS: By employing minimal tissue manipulation, integrating pre-freeze IVC processing at 30 °C and the freezing of whole testicular biopsy tissue, we have reduced the labor and improved the efficacy of processing testicular tissue for freeze-preservation and subsequent ICSI use.


Asunto(s)
Criopreservación/métodos , Fertilización In Vitro/métodos , Motilidad Espermática/fisiología , Testículo/fisiología , Congelación , Humanos , Técnicas In Vitro/métodos , Masculino , Oligospermia/fisiopatología , Inyecciones de Esperma Intracitoplasmáticas/métodos , Espermatozoides/patología , Espermatozoides/fisiología , Sacarosa/farmacología , Testículo/patología
2.
BJU Int ; 93(7): 991-5, 2004 May.
Artículo en Inglés | MEDLINE | ID: mdl-15142149

RESUMEN

OBJECTIVE: To determine if finasteride can reduce symptoms in men with a clinical diagnosis of chronic nonbacterial prostatitis (National Institutes of Health, NIH, category IIIA chronic pelvic pain syndrome, CPPS) compared with placebo. PATIENTS AND METHODS: Men (76) with category IIIA CPPS enrolled in four North American prostatitis research centres were randomized after a 2-week placebo run-in to finasteride or placebo for 6 months. The primary efficacy variable was a subjective overall assessment (SOA); the secondary efficacy variables included the NIH chronic prostatitis symptom index (NIH-CPSI) and safety data. Patients were assessed at screening, baseline (after the 2-week placebo run-in), 3 and 6 months. RESULTS: Sixty-four patients had at least one assessment on medication (31 placebo, 33 finasteride); 75% of the finasteride and 54% of the placebo group had at least a mild improvement (defined as > 25% improvement in SOA), and 44% and 27%, respectively, a moderate or marked improvement (>50% improvement in SOA). The trend was similar in the NIH-CPSI scores. Five patients in the finasteride and seven in the placebo group reported medication-related adverse events. CONCLUSION: This randomized placebo-controlled pilot study suggests that finasteride was of benefit for some men with category IIIA CPPS, but the results do not justify recommending finasteride as monotherapy, except for men who also have benign prostatic hyperplasia. A larger, properly powered study, possibly evaluating combination with other therapies or specifically in men with prostatitis and benign prostatic hyperplasia, is required to confirm any clinical benefit.


Asunto(s)
Inhibidores Enzimáticos/uso terapéutico , Finasterida/uso terapéutico , Dolor Pélvico/prevención & control , Prostatitis/tratamiento farmacológico , Adulto , Anciano , Enfermedad Crónica , Inhibidores Enzimáticos/efectos adversos , Finasterida/efectos adversos , Humanos , Masculino , Persona de Mediana Edad , Proyectos Piloto , Resultado del Tratamiento
3.
Rev Urol ; 2(1): 39-42, 2000.
Artículo en Inglés | MEDLINE | ID: mdl-16985734

RESUMEN

Hyperprolactinemia from a pituitary adenoma is a rare cause of erectile dysfunction. Men with erectile dysfunction who are found to have a low testosterone level should have a measurement of their prolactin level. Treatment consists of lowering the prolactin level by medication or surgery, or both. Bromocriptine, a dopamine agonist, is efficacious in lowering elevated prolactin levels and can simultaneously shrink these pituitary tumors. With large tumors, transphenoidal surgery may be used to debulk/remove the tumor. Post-treatment prolactin levels can be used to monitor the efficacy of treatment.

4.
Urology ; 54(6): 960-3, 1999 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-10604689

RESUMEN

OBJECTIVES: The National Institutes of Health (NIH) category III chronic prostatitis syndromes (nonbacterial chronic prostatitis and prostatodynia) are common disorders with few effective therapies. Bioflavonoids have recently been shown in an open-label study to improve the symptoms of these disorders in a significant proportion of men. The aim of this study was to confirm these findings in a prospective randomized, double-blind, placebo-controlled trial. METHODS: Thirty men with category IIIa and IIIb chronic pelvic pain syndrome were randomized in a double-blind fashion to receive either placebo or the bioflavonoid quercetin 500 mg twice daily for 1 month. The NIH chronic prostatitis symptom score was used to grade symptoms and the quality-of-life impact at the start and conclusion of the study. In a follow-up unblind, open-label study, 17 additional men received 1 month of a supplement containing quercetin, as well as bromelain and papain (Prosta-O), which enhance bioflavonoid absorption. RESULTS: Two patients in the placebo group refused to complete the study because of worsening symptoms, leaving 13 placebo and 15 bioflavonoid patients for evaluation in the blind study. Both the quercetin and placebo groups were similar in age, symptom duration, and initial symptom score. Patients taking placebo had a mean improvement in NIH symptom score from 20.2 to 18.8 (not significant), while those taking the bioflavonoid had a mean improvement from 21.0 to 13.1 (P = 0.003). Twenty percent of patients taking placebo and 67% of patients taking the bioflavonoid had an improvement of symptoms of at least 25%. In the 17 patients who received Prosta-Q in the open-label study, 82% had at least a 25% improvement in symptom score. CONCLUSIONS: Therapy with the bioflavonoid quercetin is well tolerated and provides significant symptomatic improvement in most men with chronic pelvic pain syndrome.


Asunto(s)
Prostatitis/tratamiento farmacológico , Quercetina/uso terapéutico , Adulto , Anciano , Enfermedad Crónica , Método Doble Ciego , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos
6.
Prostate Cancer Prostatic Dis ; 2(3): 159-162, 1999 May.
Artículo en Inglés | MEDLINE | ID: mdl-12496826

RESUMEN

Chronic prostatitis is often refractory to antibiotics, however biopsy and molecular data indicate persistent symptoms may be due to occult infection. Combining antibiotic therapy with regular prostatic massage has been suggested as an effective therapy for some of these men. From November 1996 to December 1998, 73 men with chronic pelvic pain syndromes were treated with antibiotics and prostatic massage. Antibiotic selection was based on culture and sensitivity of prostatic fluid or empirically if cultures were negative. Prostatic massage was done 1 to 3 times per week and fluid examined for WBCs and cultured for bacteria. The average age of the group was 43.5 y (range 23-72) and average duration of symptoms 6.7 y (median 3 y, range 3 months-30 y). Prostatic cultures were negative in 19, grew uropathogens in 2, and Gram positive bacteria in 52 patients. Overall 29 patients (40%) had complete resolution of symptoms, 14 (19%) had complete resolution followed by a recurrence, 15 (21%) had some improvement and 15 (21%) had no improvement. All positive cultures were sterilized during treatment. Combination prostatic massage and culture specific antibiotics can be an effective treatment in a proportion of men with long standing refractory chronic prostatitis.

7.
J Urol ; 160(1): 91-5; discussion 95-6, 1998 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-9628612

RESUMEN

PURPOSE: We evaluate the efficacy of high dose combination radiotherapy for the treatment of localized prostate cancer. MATERIALS AND METHODS: A total of 212 patients with localized prostate cancer (T1-T3) were treated with transperineal radioactive seed implantation followed by 45 Gy. external beam radiation therapy. Patients with Gleason scores of 2-5 were treated with 125iodine at a minimum peripheral dose of 120 Gy., while 103palladium at a minimum peripheral dose of 90 Gy. was used for those with Gleason scores of 7-10. Patients with Gleason 6 diploid tumors were treated with 125iodine and those with aneuploid tumors were treated with 103palladium. Biochemical failure was defined as inability to achieve a prostate specific antigen nadir value of 0.5 ng./ml. or less. No patient was treated with androgen deprivation therapy. RESULTS: The 212 patients have a minimum of 24 months of followup (mean 33 months). Prostate specific antigen 0.5 ng./ml. or less was reached by 72% of the patients (152 of 212) and positive biopsies were detected in 13.9% (20 of 144). Using life table survivorship analysis the probability of initial biochemical success at 5 years was 91% (95% confidence interval, 83 to 97). The probability of subsequent failure following an initial success was 11% (95% confidence interval, 6 to 20) at 24 months. The complications of combination therapy included proctitis in 21.4% (47 of 212 men), impotence in 38% (38 of 100), urinary retention in 1.5%, incontinence in 2.8%, rectoprostate fistula in 2.4%, rectal wall breakdown in 0.5% and urethral stricture in 0.5%. Six patients (2.8%) required colostomy and urinary diversion. CONCLUSIONS: Short-term responses to high dose combination radiotherapy for localized prostate cancer are promising. The morbidity is acceptable. Further long-term followup is warranted to assess this treatment.


Asunto(s)
Braquiterapia , Neoplasias de la Próstata/radioterapia , Anciano , Anciano de 80 o más Años , Biopsia , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Neoplasias de la Próstata/mortalidad , Neoplasias de la Próstata/patología , Dosificación Radioterapéutica , Tasa de Supervivencia
9.
Urology ; 48(3): 365-7; discussion 367-8, 1996 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-8804486

RESUMEN

OBJECTIVES: Published reports are devoid of U.S. studies investigating the role of the intravenous urogram (IVU) in adult patients of differing ages with hematuria. To evaluate the efficacy of the IVU in patients less than 55 years old, a retrospective analysis was performed. METHODS: The records of all patients (n = 800) undergoing IVU in an inner city hospital from January 1991 through October 1994 were reviewed for age, gender, race, urinalysis data, and cystoscopic and biopsy findings. Age greater than 55 years, recent trauma, and known malignancy were exclusion criteria. Hematuria was the indication for IVU in 128 of 800 patients. Eight (6.2%) of 128 patients had inadequate chart information, leaving a total of 120 evaluable charts. RESULTS: We stratified the 120 patients by age, degree of hematuria (gross versus microscopic), and gender. The younger group (17 to 40 years old) included 64 patients (53%) and the older group (41 to 55 years old) 56 patients (47%). Gross hematuria was reported in 65 patients (54%), whereas 55 (46%) had microscopic hematuria. Men accounted for 78 patients (65%) and women for 42 (35%). The majority of patients were African-Americans (100 [83%] of 120). Abnormal findings were seen in 17 (14%) of 120 patients. The IVU alone provided no diagnosis of immediate consequence. There was no significant difference in findings between the age groups (P = 0.61), gross and microscopic hematuria (P = 0.28), and men and women (P = 0.59). Contrast reactions occurred in 3 (2.5%) of 120 patients. CONCLUSIONS: In this inner city population younger than 55 years of age, the usefulness of the IVU for the evaluation of hematuria is questionable. It did not establish a diagnosis, modify the subsequent evaluation, or change the therapy in any of our patients.


Asunto(s)
Hematuria/etiología , Enfermedades Urológicas/diagnóstico por imagen , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Urografía , Enfermedades Urológicas/complicaciones
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