the testicular torsion which is typically seen in prepuberty is very rare in the early neonatal period; prenatal diagnosis is difficult. herein, we report a five day-old male neonate with swelling and erythema of the right scrotum.  following doppler ultrasound suggestive of testicular torsion, surgical exploration was undertaken. there was gangrene of the right testis with discoloration and ne...

introduction: since discovery of high frequency waves, their biological effects have been in great attention. increased male fertility problems proposed their possible relation to use of microwaves. testes are of very active body tissues, which can be affected by these waves. age of exposure may also be an important factor. methods: this study was carried out to evaluated testosterone level in ...

objective(s):  being secreted by the pineal gland, melatonin induces cell proliferation in normal cells and induced apoptosis in cancer cells. the purpose of this study was to investigate effects of melatonin on main components and the expression of apoptotic genes in vitrified-thawed testicular germ cells of 6- day–old mice.  materials and methods: testes of neonate balb/c mice were vitrified-...

In this paper we introduce two different representation approaches and propose two techniques to estimate the position of vanishing points in an image, one based on a probabilistic strategy and the other focused on a deterministic analysis. Unlike most of the methods so far developed, which exploit the Gaussian sphere, the new techniques operate in the (ρ, θ) polar parameter space and in the (x...

We present a novel perception-driven approach to low-cost tele-presence systems, to support immersive experience in continuity between projected video and conferencing room. We use geometry and spectral correction to impart for perceptual continuity to the whole scene. The geometric correction comes from a learning-based approach to identifying horizontal and vertical surfaces. Our method redra...

We present a method for the automatic detection of vanishing points in urban scenes based on finding point alignments in a dual space, where converging lines in the image are mapped to aligned points. To compute this mapping the recently introduced PClines transformation is used. A robust point alignment detector is run to detect clusters of aligned points in the dual space. Finally, a post-pro...

This work aimed to clarify the expression and roles of anti-Müllerian hormone (AMH) and its type 2 receptor (AMHR2) in seminiferous tubules of maturing rat testes. By quantitative RT-PCR, we determined the relative expressions of Amh, Amhr2, Scp1, Rsbn1, Ngfr, and Rhox5 in rat testes aged 5-49 days (d), and in germ cells and Sertoli cells isolated from 21d testes. Smad 1,5 and 8 expressions wer...

Polyorchidism is a rare anomaly of the genitourinary system which is defined as the presence of more than two testes within the scrotum. Lobulation of a testis is also a rare anomaly. To the best of our knowledge, this is the first report of polyorchidism with lobulation of a supernumerary testis. We present ultrasonography findings of lobulation of a supernumerary testis in a 38-year-old man.

In human testes, stem cells such as spermatogonia need to produce progeny cells continually. Telomere length is maintained throughout spermatogenesis, i.e. from spermatogonia to spermatozoon, and telomerase is reported to be present in the testes. In this study, we measured the activity of telomerase in the human testes of 16 cases of idiopathic azoospermia, 10 of obstructive azoospermia, and 1...

PURPOSE To establish a correlation between testicular position and fetal weight, in order to provide an additional prenatal parameter for fetal weight estimation. MATERIALS AND METHODS We studied 288 testes from 144 human fetuses. The fetuses were assessed as regards weight, total length, crown-rump length and foot length. Fetal age was calculated according to the foot length criteria. The po...