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https://www.readbyqxmd.com/read/27927844/congenital-hypogonadotropic-hypogonadism-functional-hypogonadotropism-or-constitutional-delay-of-growth-and-puberty-an-analysis-of-a-large-patient-series-from-a-single-tertiary-center
#1
Tero Varimo, Päivi J Miettinen, Johanna Känsäkoski, Taneli Raivio, Matti Hero
STUDY QUESTION: What diagnoses underlie delayed puberty (DP) and predict its outcome? SUMMARY ANSWER: A multitude of different diagnoses underlie DP, and in boys a history of cryptorchidism, small testicular size and slow growth velocity (GV) predict its clinical course. WHAT IS KNOWN ALREADY: DP is caused by a variety of underlying etiologies. Hormonal markers can be used in the differential diagnosis of DP but none of them have shown complete diagnostic accuracy...
December 6, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27916832/anthropometric-measurements-serum-reproductive-hormonal-levels-and-sexual-development-among-boys-in-the-rural-western-cape-south-africa
#2
Jun Mao, Mohamed Aqiel Dalvie
Data on growth and sexual maturation among boys from the rural Western Cape in South Africa is limited. A cross-sectional study of 269 school boys was conducted testing for serum luteinizing hormone (LH), follicle stimulating hormone (FSH), testosterone, sex hormone binding globulin (SHBG) and estradiol (E2); height, weight and body mass index (BMI); sexual maturity (using Tanner Stages) and a questionnaire (demographic and medical history). The median age at pubertal onset (Tanner Stage 2) and Tanner Stage 5 was 11...
November 29, 2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/27903360/-update-on-pubertal-development-among-primary-school-students-in-shanghai-2014
#3
Y Chen, Y T Zhang, C Chen, Y R Jiang, Y J Song, S J Liu, F Jiang
Objective: To investigate the current prevalence of pubertal development in healthy Shanghai schoolchildren. Methods: This study was a cross-sectional investigation focused on current pubertal development conducted in healthy Shanghai schoolchildren by multi-stage cluster sampling. The sample included 17 571 children in grades 1-5 investigated in June 2014. The data were weighted by inverse probability weighting (IPW) to make them more representative. At examination, stages of breast and pubic hair development were rated according to the Tanner method...
November 6, 2016: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/27893825/low-birth-weight-is-associated-with-a-decreased-overall-adult-health-status-and-reproductive-capability-results-of-a-cross-sectional-study-in-primary-infertile-patients
#4
Luca Boeri, Eugenio Ventimiglia, Paolo Capogrosso, Silvia Ippolito, Angela Pecoraro, Marco Paciotti, Roberta Scano, Alessandro Galdini, Luca Valsecchi, Enrico Papaleo, Francesco Montorsi, Andrea Salonia
Individuals born with low birth weight (LBW) risk cardiometabolic complications later in life. However the impact of LBW on general health status and male reproductive function has been scantly analysed. We investigated the clinical and seminal impact of different birth weights (BW) in white-European men presenting for primary couple's infertility. Demographic, clinical, and laboratory data from 827 primary infertile men were compared with those of 373 consecutive fertile men. Patients with BW ≤2500, 2500-4200, and ≥4200gr were classified as having LBW, normal (NBW), and high BW (HBW), respectively...
2016: PloS One
https://www.readbyqxmd.com/read/27890022/continuous-light-after-2-months-of-long-days-stimulates-ram-testis-volume-and-increases-fertility-in-spring
#5
D Chesneau, D Guillaume, P Chemineau, B Malpaux
Seasonal reproduction is one of the major biotechnical and economic constraints of sheep production in temperate latitudes. Treatments using extra light followed by melatonin implants have been used satisfactorily in open barns, farms and artificial insemination centres to produce out-of-season sexual activity in rams. The aim of the present study is to explore the possibility of replacing melatonin implants with continuous light (LL), which was recently shown to increase LH secretion similar to melatonin and/or pinealectomy...
November 28, 2016: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/27886002/three-dimensional-vs-two-dimensional-shear-wave-elastography-of-the-testes-preliminary-study-on-a-healthy-collective
#6
J Marcon, M Trottmann, J Rübenthaler, M D'Anastasi, C G Stief, M F Reiser, D A Clevert
INTRODUCTION: Shear wave elastography (SWE) and its derivative Supersonic Shear Imaging (SSI) are newer techniques for the determination of tissue elasticity by measuring the velocity of generated shear waves (SWV), which correlates positively with tissue stiffness.The techniques are integrated into many modern ultrasound systems and have been examined in the evaluation of viscoelastic properties of different organ systems. Two-dimensional shear wave elastography (2D SWE) of the testes has been found to be a useful tool in recent studies which included the determination of standard values in healthy volunteers...
November 23, 2016: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/27879966/andrological-complications-following-retroperitoneal-lymphnode-dissection-for-testicular-cancer-a-narrative-review
#7
Alessandro Crestani, Francesco Esperto, Marta Rossanese, Gianluca Giannarini, Nicola Nicolai, Vincenzo Ficarra
Retroperitoneal lymphnode dissection (RPLND) is a fundamental surgical step in the treatment of testicular cancer. Nowadays primary RPLND has partially lost its role in favour of active surveillance (for low risk stage I disease) and short cycle chemotherapy in non-seminomatous germ cell tumour (NSGCT). Conversely, postchemotherapy-RPLND (PC-RPLND) remains the standard treatment for residual masses after chemotherapy. In consideration of curability rate of testicular cancer and the life expectancy of testicular cancer survivors the identification and the prevention of andrological complications became fundamental...
November 23, 2016: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/27878108/can-ultrasound-findings-be-a-good-predictor-of-sperm-parameters-in-patients-with-varicocele-a-cross-sectional-study
#8
Ali Mahdavi, Reza Heidari, Mehrdad Khezri, Abolfazl Shiravi, Reyhaneh Pirjani, Reyhaneh Saheb Kashaf
BACKGROUND: Varicocele, one of the most common causes of sperm abnormalities in men, is the dilation of the testicular vein (the pampiniform venous plexus) by more than 2 mm. Ultrasonography is the primary imaging procedure for varicocele diagnosis. The venous diameter is evaluated using B-mode sonography, and venous reflux is assessed using color Doppler sonography. OBJECTIVES: In this study, we investigated the association of ultrasound findings with sperm parameters in patients with varicocele...
September 2016: Nephro-urology Monthly
https://www.readbyqxmd.com/read/27872163/role-of-autophagy-in-cadmium-induced-testicular-injury
#9
Y-J Wang, J Yan, F Yin, L Li, Y-G Qin, C-Y Meng, R-F Lu, L Guo
The testis is sensitive to cadmium, but studies investigating cadmium-induced testicular injury have not yet clearly revealed the underlying mechanisms. This study aimed to investigate the injurious effects of cadmium on rat testes and the role that autophagy plays in this process. Wistar rats were randomly divided into four groups and intraperitoneally injected with 0.2 (low), 0.4 (middle), and 0.8 mg/kg·body weight (high) cadmium chloride for 5 weeks, while the control rats were injected with equal volume of saline...
November 21, 2016: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/27867844/surgical-approaches-for-varicocele-in-pediatric-patient
#10
Alejandra Parrilli, Agnese Roberti, Maria Escolino, Ciro Esposito
BACKGROUND: Varicocele represents one of the most common surgically correctible urologic anomalies in adolescent males. The best procedure for the treatment of adolescent varicocele has not been established, but with recent advances in minimal access surgery, there have been many reports praising the safety and efficacy of laparoscopy and retroperitoneoscopy for the surgical correction of varicocele in adolescent. The aim of this review is to compare the results of Palomo's technique, with retroperitoneoscopic and transperitoneoscopic approaches in adolescent, analyzing recurrence, testicular growth and complications...
October 2016: Translational pediatrics
https://www.readbyqxmd.com/read/27867337/oligometastatic-growing-teratoma-syndrome-a-case-for-an-aggressive-surgical-approach
#11
William S Gange, Robert H Blackwell, John Biemer, Güliz A Barkan, Maria M Picken, Marcus L Quek
Growing teratoma syndrome is an infrequent presentation of testicular cancer. We present a case of growing teratoma syndrome in a patient who initially presented with clinical stage I nonseminomatous testicular germ cell tumor, who subsequently developed large volume oligometastases to the retroperitoneum, thorax, and thigh. Despite two regimens of chemotherapy, his disease progressed. Complete surgical extirpation of all gross tumors confirmed mature teratoma. An aggressive surgical approach, including postchemotherapy resection of all known metastatic sites, can provide long-term disease-free survival...
October 2016: Current Urology
https://www.readbyqxmd.com/read/27865415/biosterilant-effects-of-bacillus-thuringiensis-kurstaki-hd-73-extract-on-male-wistar-albino-rats
#12
Vikas Kumar Roy, Vanlal Peki, Maibam Sunita Devi, Sanasam Sanjeev, Maurya Khusboo, R Zothansanga, Kalibulla Syed Ibrahim, Nachimuthu Senthil Kumar, Guruswami Gurusubramanian
Chemosterilants have long been used in sterilization programs for managing pet, stray, and wild animals but adverse effects such as trauma, incomplete responses to treatment, and complete abolition of gonadal sources of testosterone often occurs. This study describes the biosterilant effects of administering three doses of Bacillus thuringiensis kurstaki HD-73 (Bt 5, 50, and 250 mg/kg; 20 rats/dose) extract in adult male Wistar albino rats on testicular parameters, function, histology, and a number of biochemical markers of overall health, free radical production, and cell proliferation...
January 15, 2017: Theriogenology
https://www.readbyqxmd.com/read/27856800/normal-testes-asymmetry-evaluated-by-apparent-diffusion-coefficient-and-magnetization-transfer-ratio
#13
Athina C Tsili, Alexandra Ntorkou, Dimitrios Giannakis, Nikolaos Sofikitis, Maria I Argyropoulou
BACKGROUND: In humans, the left testis generally hangs lower than the right and the right is larger than the left. Magnetic resonance imaging (MRI) represents an important adjuvant modality in the investigation of testicular diseases. PURPOSE: To assess if normal testes asymmetry is related to apparent diffusion coefficient (ADC) and magnetization transfer ratio (MTR). MATERIAL AND METHODS: The normal testes from 106 men were included. Testicular volume (TV) was calculated by using the ellipsoid formula: length × width × height × 0...
November 17, 2016: Acta Radiologica
https://www.readbyqxmd.com/read/27852815/alcohol-based-solutions-for-bovine-testicular-tissue-fixation
#14
Nelson C Cabrera, Jorge R Espinoza, Paul Vargas-Jentzsch, Patricio Sandoval, Luis A Ramos, Pedro M Aponte
Tissue fixation, a central element in histotechnology, is currently performed with chemical compounds potentially harmful for human health and the environment. Therefore, alternative fixatives are being developed, including alcohol-based solutions. We evaluated several ethanol-based mixtures with additives to study fixative penetration rate, tissue volume changes, and morphologic effects in the bovine testis. Fixatives used were Bouin solution, 4% formaldehyde (F4), 70% ethanol (E70), E70 with 1.5% glycerol (E70G), E70 with 5% acetic acid (E70A), E70 with 1...
November 15, 2016: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/27834316/fatty-acid-intake-in-relation-to-reproductive-hormones-and-testicular-volume-among-young-healthy-men
#15
Lidia Mínguez-Alarcón, Jorge E Chavarro, Jaime Mendiola, Manuela Roca, Cigdem Tanrikut, Jesús Vioque, Niels Jørgensen, Alberto M Torres-Cantero
Emerging evidence suggests that dietary fats may influence testicular function. However, most of the published literature on this field has used semen quality parameters as the only proxy for testicular function. We examined the association of fat intake with circulating reproductive hormone levels and testicular volume among healthy young Spanish men. This is a cross-sectional study among 209 healthy male volunteers conducted between October 2010 and November 2011 in Murcia Region of Spain. Participants completed questionnaires on lifestyle, diet, and smoking, and each underwent a physical examination, and provided a blood sample...
October 28, 2016: Asian Journal of Andrology
https://www.readbyqxmd.com/read/27825409/clinical-features-of-pituitary-stalk-interruption-syndrome-in-114-cases
#16
Bai-Yu Han, Qian Zhang, Le-Le Li, Qing-Hua Guo, Cheng-Zhi Wang, Li Cang, Nan Jin, Fang Chen, Ling Zhao, Jia Cui, Xiu-Lian Gu, Fang-Ling Ma, Sai-Chun Zhang, Yi-Ming Mu, Jing-Tao Dou
Objective To analyze the clinical characteristics of pituitary stalk interruption syndrome(PSIS). Methods The clinical data including clinical manifestations,laboratory tests,and imaging findings of 114 PSIS patients in our hospital were retrospectively analyzed. Results Of these 114 PSIS patients,102 cases (89.4%) were male. The average age was 21.1?6.1 years. A history of breech delivery was documented in 91 cases (91.9%). Short stature was found in 89 cases (71.8%) and bone age delayed (6.1?5.1) years. Secondary sex characteristics were poor or undeveloped in most patients...
October 10, 2016: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/27818033/does-varicocelectomy-improve-semen-analysis-outcomes-in-adolescents-without-testicular-asymmetry
#17
David I Chu, Stephen A Zderic, Aseem R Shukla, Arun K Srinivasan, Gregory E Tasian, Dana A Weiss, Christopher J Long, Douglas A Canning, Thomas F Kolon
PURPOSE: The main indications for adolescent varicocelectomy are testicular hypotrophy or pain. However, we have previously shown that both serial total testicular volume and volume differential are weakly associated with semen quality. The ultimate patient goal is paternity, but semen analysis is critical to appropriate management of varicocele. We hypothesize that varicocelectomy improves total motile count (TMC) among patients who only have abnormal semen analysis (SA) parameters, but not among those with potential hormonal dysfunction such as Klinefelter syndrome or cryptorchidism...
October 26, 2016: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/27815047/the-natural-history-of-semen-parameters-in-untreated-asymptomatic-adolescent-varicocele-patients-a-retrospective-cohort-study
#18
David I Chu, Stephen A Zderic, Aseem R Shukla, Arun K Srinivasan, Gregory E Tasian, Dana A Weiss, Christopher J Long, Douglas A Canning, Thomas F Kolon
INTRODUCTION: Adolescent males with varicoceles present a dilemma for surveillance and treatment. Testicular volumetrics have not been shown to predict SA outcomes. Serial SAs are thus recommended in asymptomatic adolescent males with varicoceles and normal testicular development, but the natural history of semen parameters is unknown. OBJECTIVE: To explore the natural history of semen parameters in adolescent boys with a left varicocele under active surveillance...
October 24, 2016: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/27807899/canine-reproductive-ultrasound-examination-for-predicting-future-sperm-quality
#19
Gcw England, L Bright, B Pritchard, I M Bowen, M B de Souza, Ldm Silva, R Moxon
The reproductive potential of male animals is commonly evaluated using a breeding soundness examination incorporating B-mode ultrasound examination of the testes and recently Doppler ultrasound examination of the testicular arteries. These techniques may detect testicular normality or pathology, and while some measured parameters are associated with semen quality at the time of ultrasound examination, few studies have investigated the relationship with future semen quality. We hypothesized that B-mode and Doppler ultrasound measurements would correlate with future semen quality...
November 3, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27800030/fertility-preservation-in-males-with-cancer-16-year-monocentric-experience-of-sperm-banking-and-post-thaw-reproductive-outcomes
#20
Raffaella Depalo, Doriana Falagario, Paola Masciandaro, Claudia Nardelli, Margherita Patrizia Vacca, Pasquale Capuano, Giorgina Specchia, Michele Battaglia
BACKGROUND: Anticancer treatments can impair male fertility. Cryopreservation of semen is an efficient procedure for fertility preservation. The aim of this study was to evaluate pre-freeze semen parameters among the various types of cancer, post-thaw sperm viability and reproductive outcome of samples used for assisted reproductive treatment (ART). METHODS: This study included 721 men with cancer that had their semen cryopreserved in our bank in 1999-2015. Semen analysis and cryopreservation were performed before the start of antineoplastic treatment, according to the World Health Organization recommendations, European Commission and Italian law...
November 2016: Therapeutic Advances in Medical Oncology
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