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https://www.readbyqxmd.com/read/28190662/prospective-ultrasonographic-and-endocrine-predictors-of-spermatogenic-onset-in-ram-lambs
#1
Pawel M Bartlewski, Jennifer L Giffin, Olutobi A Oluwole, Ann C Hahnel
The objective of this study was to examine testicular ultrasonographic characteristics and endocrine profiles in prepubescent ram lambs for correlations with the age at first detection of elongated spermatids (ESt age). Bi-weekly ultrasound examinations and weekly testicular biopsies began at 10 weeks of age or at the time that testicular volume reached 15cm(3), and continued until 1-2 weeks after Est's were first detected by histological examination of testicular biopsies in twenty-two spring-born Rideau Arcott×Polled Dorset lambs...
February 6, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28181114/injury-to-the-male-external-genitalia-a-comprehensive-review
#2
REVIEW
James Furr, Daniel Culkin
While rare, trauma and injury to the male external genitalia can result in significant consequences regarding function, appearance, psychological effects, and overall quality of life. Due to the relative paucity of literature regarding male external genitalia injuries, few standardized protocols exist. This review aims to outline common clinical causes of male external genitalia injuries by both anatomic location and etiology. Initial stabilization, long-term reconstruction, and coverage options are discussed in detail...
February 8, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28153774/patterns-of-care-and-survival-outcomes-for-adolescent-and-young-adult-patients-with-testicular-seminoma-in-the-united-states-a-national-cancer-database-analysis
#3
William Stokes, Arya Amini, Paul D Maroni, Elizabeth R Kessler, Claire Stokes, Carrye R Cost, Brian S Greffe, Timothy P Garrington, Arthur K Liu, Nicholas G Cost
INTRODUCTION: Testicular germ cell tumors (GCTs) are the most common solid tumor among adolescent and young adult (AYA) males. AYA patients with GCTs most typically have non-seminoma compared with seminoma, and accordingly there are fewer data reported on the AYA experience with testicular seminoma. OBJECTIVE: To evaluate national trends in postoperative treatment and overall survival (OS) outcomes in testicular seminoma by age group, specifically comparing AYAs with older adults...
January 17, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28152410/semen-quality-and-insulin-like-factor-3-associations-with-urinary-and-seminal-levels-of-phthalate-metabolites-in-adult-males
#4
Wei-Hsiang Chang, Meng-Hsing Wu, Hsien-An Pan, Pao-Lin Guo, Ching-Chang Lee
Certain phthalates have adverse effects on male reproductive functions in animals, and potentially affect human testicular function and spermatogenesis, but little is known about the active mechanisms. We measured the urinary and seminal phthalate metabolites and explored their associations on insulin-like factor 3 (INSL3) and semen quality. Urine, blood, and semen samples were collected from the male partners of subfertile (n = 253) and fertile (n = 37) couples in a reproductive center in southern Taiwan...
January 16, 2017: Chemosphere
https://www.readbyqxmd.com/read/28150168/retroperitoneal-lymph-node-dissection-an-update-in-testicular-malignancies
#5
REVIEW
K Yadav
Management of testicular cancer has evolved through many breakthroughs. The decades of zeal to improve oncologic adequacy and to decrease morbidity has led to the current scientific knowledge of retroperitoneal lymph node dissection templates. Retroperitoneal lymph node dissection (RPLND) has potential for staging, prognostication and therapeutic importance in the management of testicular malignancy. RPLND has overcome limitations of current imaging which understage 30% of stage I disease and overstage 25-30% of stage II disease...
February 1, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28125168/prednisone-treatment-in-infertile-patients-with-oligozoospermia-and-accessory-gland-inflammatory-alterations
#6
D Milardi, G Luca, G Grande, M Ghezzi, N Caretta, G Brusco, G De Filpo, R Marana, A Pontecorvi, R Calafiore, C Foresta, A Garolla
The association between inflammation of the male reproductive system and oligozoospermia has been frequently reported in the clinical work-up of male infertility. To improve sperm parameters in infertile patients with genital inflammation, many phytochemical and nutraceutical drugs are currently being used. However, their use is still empirical and no conclusive data have been provided about their efficacy. The treatment with steroid anti-inflammatory drugs might be useful in reducing inflammation and improving sperm parameters, thus increasing the fertility outcome...
January 26, 2017: Andrology
https://www.readbyqxmd.com/read/28124386/quantitative-changes-in-testicular-structure-and-function-in-rat-exposed-to-mobile-phone-radiation
#7
M Çetkin, N Kızılkan, C Demirel, Z Bozdağ, S Erkılıç, H Erbağcı
The possible effects of the electromagnetic fields (EMF) generated by mobile phones on reproductive functions have been discussed in recent years. The aim of this study was to evaluate the effects of EMF emitted from mobile phones on the rat testis morphology and histopathology using stereological techniques. We also investigated cortisol, testosterone, FSH and LH levels. A total of thirty-two (n = 32) male Wistar albino rats were used in this study. Animals were randomly divided into four groups as control (C, n = 8), sham (Sh, n = 8), mobile phone speech (Sp, n = 8) and mobile phone standby (ST by)...
January 26, 2017: Andrologia
https://www.readbyqxmd.com/read/28117098/perinatal-testicular-torsion-ultrasound-assessment-and-differential-diagnosis
#8
C Sangüesa Nebot, R Llorens Salvador, S Picó Aliaga, E Garcés Iñigo
Perinatal testicular torsion, defined as torsion occurring in the prenatal period or in the first month after birth, accounts for 10% of all cases of testicular torsion in pediatric patients. Most are extravaginal, and intravaginal torsion is rare. Its management is controversial, due to the low viability of the testis and the possibility of bilateral torsion. Ultrasonography is the method of choice to study testicular torsion. Combining B-mode and power Doppler imaging facilitates a fast reliable diagnosis...
January 20, 2017: Radiología
https://www.readbyqxmd.com/read/28111814/testosterone-serum-profile-semen-characteristics-and-testicular-biometry-of-mangalarga-marchador-stallions-in-a-tropical-environment
#9
B Waddington, J M Penitente-Filho, Jgs Neves, R O Pinho, A Y Chaya, P P Maitan, C O Silveira, M G Neves, Sef Guimarães, G R de Carvalho, J D Guimarães
This study was conducted to characterize the daily profile of testosterone secretion and its mean concentrations in the four seasons as well as to evaluate the semen characteristics and testicular biometry of Mangalarga Marchador stallions throughout the year in a tropical region. Three stallions were submitted to semen collections and evaluation of testicular biometry every 14 days along a year. Blood samples were collected once at the middle of each season, in a 20-min interval during 24 hr in order to evaluate the testosterone secretion profiles among seasons...
January 23, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28100475/effects-of-obesity-and-exercise-on-testicular-leptin-signal-transduction-and-testosterone-biosynthesis-in-male-mice
#10
Xuejie Yi, Haining Gao, Dequan Chen, Donghui Tang, Wanting Huang, Tao Li, Tie Ma, Bo Chang
To explore the role of the testicular leptin and JAK-STAT(LEP-JAK-STAT) pathway in testosterone biosynthesis during juvenile stages and exercise for weight loss, male C57BL/6J mice were randomly divided into normal-diet (ND) and high-fat diet (HFD) groups. After 10 weeks, mice in the HFD group were further divided randomly into obese control (OC), obese moderate-volume exercise (OME), and obese high-volume exercise (OHE) groups. Mice in the OME group were provided with 2 h/day, 6 days/week swimming exercise for 8 weeks and mice in the OHE group underwent twice the amount of daily exercise intervention as the OME group...
January 18, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28081195/assessment-of-volumetric-versus-manual-measurement-in-disseminated-testicular-cancer-no-difference-in-assessment-between-non-radiologists-and-genitourinary-radiologist
#11
Çiğdem Öztürk, Ton Velleman, Alphons H H Bongaerts, L M Bergman, Robert J van Ginkel, Jourik A Gietema, Harald J Hoekstra
BACKGROUND: The aim of this study was to assess the feasibility and reproducibility of semi-automatic volumetric measurement of retroperitoneal lymph node metastases in testicular cancer (TC) patients treated with chemotherapy versus the standardized manual measurements based on RECIST criteria. METHODS: 21 TC patients with retroperitoneal lymph node metastases of testicular cancer were studied with a CT scan of chest and abdomen before and after cisplatin based chemotherapy...
2017: PloS One
https://www.readbyqxmd.com/read/28073201/azoospermic-patient-s-treatment-an-experience-of-a-pma-hospital-unit-and-role-of-ultrasonography
#12
Paolo Panella, Pietro Pepe, Placido Borzì, Maria Elena Vento, Michele Pennisi, Paolo Scollo
INTRODUCTION: Azoospermia causes about 10% of male infertility and the best therapeutic option is the retrieval of sperm from testis or epididymis. MATERIAL AND METHODS: From Juanary 2008 to June 2016, 92 men (median 36 years; range: 25-54 years) were submitted in 47 cases to TESE (testicular sperm extraction) and in 45 cases to PESA (percutaneous epididymal sperm aspiration) for secretory and obstructive azoospermia, respectively; moreover, all the patients previously underwent color Doppler ultrasound of the testis and transrectal ultrasound of the prostate...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28070708/delayed-treatment-of-undescended-testes-may-promote-hypogonadism-and-infertility
#13
Julia Rohayem, Alessandra Luberto, Eberhard Nieschlag, Michael Zitzmann, Sabine Kliesch
CONTEXT: Undescended testes at birth may be caused by testosterone deficiency during fetal development. It is unclear whether the process of failed descent contributes to permanent endocrine impairment. OBJECTIVES: To evaluate the impact of age at treatment of undescended testes on endocrine and spermatogenic testicular function in middle-aged men. PATIENTS AND METHODS: Reproductive hormone and semen data of 357 men with previously undescended testes were evaluated with respect to age at correction of testicular position and compared to those of 709 controls with eutopic testes at birth and normozoospermia...
January 9, 2017: Endocrine
https://www.readbyqxmd.com/read/28062178/testicular-shear-wave-elastography-in-normal-and-infertile-men-a-prospective-study-on-601-patients
#14
Laurence Rocher, Aline Criton, Jean-Luc Gennisson, Vincent Izard, Sophie Ferlicot, Mickael Tanter, Gerard Benoit, Marie France Bellin, Jean-Michel Correas
Our aim in the study described here was to prospectively establish the feasibility of using and reproducibility of testicular shear-wave elastography in the assessment of testicular stiffness in 62 normal patients and 539 infertile men with obstructive azoospermia (OA), non-Klinefelter syndrome non-obstructive azoospermia (non-KS NOA), Klinefelter syndrome NOA (KS NOA), oligoasthenoteratozoospermia (OAT) or a left varicocele. The feasibility rate was 96.9%, with an intra-class correlation coefficient of 0.85 (95% confidence interval: 0...
January 3, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28052646/ameliorative-potentials-of-quercetin-against-lead-induced-hematological-and-testicular-alterations-in-albino-rats
#15
Mohammed A. Al-Omair, Azza Sedky, Awatef Ali, Hany Elsawy
Lead is one of the oldest environmental and occupational toxins. Health hazards from increased lead exposure as a result of industrial and environmental pollution are recognized. The aim of the present study was to investigate the protective effects of quercetin as a model of an antioxidant drug against the toxic effects of lead acetate on the blood and the testis of rats. The lead concentrations were determined in blood and the testis. Testosterone (T), luteinizing hormone (LH) and follicle stimulating hormone (FSH) were assessed in serum...
28, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28048209/su-f-p-55-testicular-scatter-dose-determination-during-prostate-sbrt-with-and-without-pelvic-lymph-nodes
#16
C Venencia, A Germanier, E Garrigo, P Castro Pena, J Torres, S Zunino
PURPOSE: The elective irradiation of pelvis lymph node for prostate cancer is still controversial. Including pelvic lymph node as part of the planning target volume could increase the testicular scatter dose, which could have a clinical impact. The objective of this work was to measure testicular scatter dose for prostate SBRT treatment with and without pelvic lymph nodes using TLD dosimetry. METHODS: A 6MV beam (1000UM/min) produce by a Novalis TX (BrainLAB-VARIAN) equipped HDMLC was used...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28040413/in-search-of-an-improved-injection-technique-for-the-clinical-application-of-spermatogonial-stem-cell-transplantation
#17
Katrien Faes, Tony Lahoutte, Anne Hoorens, Herman Tournaye, Ellen Goossens
When fertility is impaired by anticancer treatment, spermatogonial stem cell transplantation (SSCT) could be used as a fertility restoration technique later on in life. Previously, we have demonstrated that a testicular cell suspension could be injected into a human cadaver testis, however, leakage to the interstitium was observed. In this study, injection of mouse testicular cells at an injection height of 50 cm (hydrostatic pressure) or via an automated injection pump (1400 µl, 2600 µl and 3000 µl) was evaluated...
December 15, 2016: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28027755/a-preliminary-study-of-shear-wave-elastography-for-the-evaluation-of-unilateral-palpable-undescended-testes
#18
Ayse Kalyoncu Ucar, Deniz Alis, Cesur Samanci, Mine Aslan, Hatice Arioz Habibi, Atilla Suleyman Dikici, Yesim Namdar, Mehmet Hamza Gultekin, Bulent Onal, Ibrahim Adaletli
OBJECTIVES: We sought to compare unilateral palpable undescended testes and contralateral descended testes using shear wave elastography (SWE) to show potential quantitative differences in elasticity patterns, which might reflect the histologic features. METHODS: Approval for this prospective study was obtained from the local ethics committee. A total of 29 patients (mean age, 7.52 years; range, 1-18 years) with unilateral palpable undescended testes and contralateral descended testes were examined by greyscale ultrasonography and SWE between February 2015 and April 2016...
January 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28004146/residual-tumor-resection-rtr
#19
A Lusch, P Albers
Residual tumor resection in patients with advanced testicular tumor plays a vital role in the multimodal treatment. Treatment indications for residual tumor resection have changed over the last two decades. While patients with advanced seminoma after chemotherapy or radiotherapy rarely need surgery, it is mandatory for most non-seminomatous tumor patients to undergo post-chemotherapy tumor resection. Due to adjunctive surgical procedures, the operation is surgically demanding and should be performed only in specialized high-volume referral centers...
December 21, 2016: World Journal of Urology
https://www.readbyqxmd.com/read/28002344/the-role-of-ultrasound-in-the-management-of-undescended-testes-before-and-after-orchidopexy-an-update
#20
Grzegorz Jedrzejewski, Andrzej Pawel Wieczorek, Pawel Osemlak, Pawel Nachulewicz
The aim of this study was to evaluate the testicular volume and structure using ultrasound (US) before and up to 3 years after orchidopexy in children with different age.A total of 128 patients underwent orchidopexy for undescended testes. Afterwards, patients were invited for annual follow-up and control scrotal US. The total number of analyzed testes after orchidopexy was 184. Patients were divided according to age at the time of surgery: group I (2-4 years old), group II (5-7), and group III (8-10). In all patients, the testicular volume ratio was calculated as the operated testes volume versus the control testes mean volume...
December 2016: Medicine (Baltimore)
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