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| Registros recuperados: 11 | |
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| Alves,G.G.; Kinoshita,A.; Oliveira,H.F. de; Guimarães,F.S.; Amaral,L.L.; Baffa,O.. |
| Radiotherapy is one of the main approaches to cure prostate cancer, and its success depends on the accuracy of dose planning. A complicating factor is the presence of a metallic prosthesis in the femur and pelvis, which is becoming more common in elderly populations. The goal of this work was to perform dose measurements to check the accuracy of radiotherapy treatment planning under these complicated conditions. To accomplish this, a scale phantom of an adult pelvic region was used with alanine dosimeters inserted in the prostate region. This phantom was irradiated according to the planned treatment under the following three conditions: with two metallic prostheses in the region of the femur head, with only one prosthesis, and without any prostheses. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alanine electron spin resonance dosimetry; Prostate; Electron paramagnetic resonance; Treatment-planning system; Inhomogeneity correction. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000700644 |
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| Medel-Flores,Olivia; Valenzuela-Rodríguez,Vania Alejandra; Ocadiz-Delgado,Rodolfo; Castro-Muñoz,Leonardo Josué; Hernández-Leyva,Sandra; Lara-Hernández,Gabriel; Silva-Escobedo,Jesús-Gabriel; Vidal,Patricio Gariglio; Sánchez-Monroy,Virginia. |
| Abstract The aim of this study was to evaluate the association between prostate cancer (PCa) and Human papillomavirus (HPV) infection in the Mexican population. We studied 356 paraffin-embedded tissues from unrelated Mexican men with PCa or benign prostatic hyperplasia (BPH), with the latter serving as control. HPV detection was performed by polymerase chain reaction (PCR) using universal primers, and viral genotypes were detected using sequencing or multiplex PCR. Light microscopy analyses enabled the identification of koilocytes in samples subsequently analyzed for HPV detection by in situ PCR and for p16-INK4A expression by immunohistochemistry. The results showed that high risk- (HR) HPVs were detected in 37/189 (19.6%) PCa specimens compared to 16/167... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: HPV; Prostate; Cancer; Koilocytes. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572018000500781 |
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| García-Flórez,M.; Oliveira,C.A.; Carvalho,H.F.. |
| Complex interactions between androgen and estrogen (E2) regulate prostatic development and physiology. We analyzed the early effects of a high single dose of E2 (25 mg/kg body weight) and castration (separately or combined) on the adult 90-day-old male Wistar rat ventral prostate. Androgen levels, prostate weight, and the variation in the relative and absolute volume of tissue compartments and apoptotic indices were determined for 7 days. Castration and exogenous E2 markedly reduced ventral prostate weight (about 50% of the control), with a significant reduction in the epithelial compartment and increased stroma. The final volume of the epithelium was identical at day 7 for all treatments (58.5% of the control). However, E2 had an immediate effect, causing... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apoptosis; Estrogen; Prostate; Stereology; Tissue kinetics. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000400002 |
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| Bustos-Obregón,Eduardo; Esponda,Pedro; Sarabia,Luis. |
| The spermatogenesis is regulated by the hypotalamus-hypophysis gonadal axis, and the androgens play a fundamental role in their last stages. The administration of the antiandrogen flutamide interferes with the function of androgen dependent organs (Prostate (P) and Seminal Vesicle (VS)). In this study flutamide (10mg/Kg b.w.) was injected to 10 mice and vehicle to the controls (n=6). The mice were sacrificed at 24 (n=5) and 72 (n=5) hours. In testicular sections the tubular diameter (TD) and height of seminiferous epithelium (EH) were measured. P and VS were macerated, and concentrations of fructose (VS) and zinc (P) were determined. No significant difference exists in the DT among the groups. However, the 72 hrs group showed EH higher than the control (p... |
| Tipo: Journal article |
Palavras-chave: Flutamide; Mouse; Spermatogenesis; Seminal vesicles; Prostate. |
| Ano: 2006 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000300008 |
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| Mahabadi,Javad Amini; Bafrani,Hassan Hassani; Nikzad,Hossein. |
| Infertility is a great concern among the people of reproductive age. The use of natural products obtained from traditional herbs is appealing. Studies show that antioxidants are important in improving male infertility. Thirty adult male rats were randomly divided into two regimen and control groups. The regimen group received diet containing 30 % sesame seed, while the control group received standard diet for 12 weeks. Histology of prostate and seminal vesicle were evaluated and serum levels of FSH, LH and testosterone concentrations were assessed as well. The results showed that, the diameter of peripheral epithelium and the volume density of the prostate epithelium increased but the volume density of the prostate stroma was decreased significantly in the... |
| Tipo: Journal article |
Palavras-chave: Prostate; Seminal vesicle; Sesame seed; Sperm; Hormone. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000200030 |
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| Tlachi-López,José L; López,Aurora; Hoffman,Kurt; Velázquez-Moctezuma,Javier; García-Lorenzana,Mario; Lucio,Rosa Angélica. |
| The rat prostate comprises dorsal, ventral and lateral lobes that are morphologically and biochemically distinct. Lesions to these structures are expected to affect the quality of the ejaculate and male fertility. In experiment 1, we analyzed ejaculate parameters of males that had chemical lesions of the dorsal or ventral lobes. At pre-lesion and at 5 and 20 days post-lesion males were mated, and after ejaculation, seminal fluid and seminal plug were obtained from the mated females. In experiment 2, the ventral lobes were ablated, and the ejaculate was analyzed. In experiment 3, the fertility of males with chemically-lesioned dorsal lobes or ablation of the ventral lobes was evaluated. Chemical lesion of the dorsal lobe prevented the adhesion of the... |
| Tipo: Journal article |
Palavras-chave: Ejaculation; Characteristics of semen; Copulatory plug; Prostate; Seminal analysis; Sperm number. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602011000300007 |
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| Motheo,Tathiana Ferguson; Alves,Aracélle Elisane; Mostachio,Giuliano Queiroz; Apparício,Maricy; Ribeiro,Alexandre Pinto; Souza,Fabiana Ferreira de; Lopes,Maria Denise; Vicente,Wilter Ricardo Russiano. |
| This study aimed to determine the effects of different concentrations of botulinum toxin type A (BT-A) on semen parameters, and seminal plasma biochemical and protein profiles of dogs with benign prostatic hyperplasia (BPH). Eighteen sexually intact male dogs with BPH were randomly divided in three groups, and received an intraprostatic injection of saline solution (control group - CG), 250UI (GI) or 500UI (GII) of BT-A under transabdominal ultrasound guidance. Semen was collected at baseline, 2, 4 and 8 weeks after treatment. Semen parameters were determined and seminal plasma pH, total protein (TP), total chlorides (TC), calcium (Ca), potassium (K), and sodium (Na) concentrations were assessed. One-dimensional sodium dodecyl sulfatepolyacrilamide gel... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Botulinum toxin; Prostate; Seminal plasma; Dog. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000600026 |
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| Nishan,Umar; da Rosa-Ribeiro,Rafaela; Damas-Souza,Danilo Marchete; Barbosa,Guilherme Oliveira; Carvalho,Hernandes F.. |
| Abstract Anti-androgen therapies, including orchiectomy, are effective at promoting prostate cancer remission, but are followed by progression to the more aggressive castration-resistant prostate cancer (CRPC). Castration promotes gland and tumor shrinkage. However, prostate adaptation to androgen deprivation involves striking parallel events, all requiring changes in gene expression. We hypothesized that transcription factors (TF) and other transcription-related genes are needed to orchestrate those changes. In this work, downstream analysis using bioinformatic tools and published microarray data allowed us to identify sixty transcriptional regulators (including 10 TF) and to integrate their function in physiologically relevant networks. Functional... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Androgens; Arnt; Castration; Prostate; Transcription factors. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000500802 |
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| Registros recuperados: 11 | |
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