To identify putative biomarkers of porcine spermatogonial stem cells (pSSCs), total RNA sequencing (RNA-seq) analysis was performed on 5- and 180-day-old porcine testes and on pSSC colonies that were established under low temperature culture conditions as reported previously. In total, 10,184 genes were selected using Cufflink software, followed by a logarithm and quantile normalization of the ...

BACKGROUND The aim of this study was to assess the expression of estrogen receptors alpha and beta in paratesticular tissues in a group of boys with and without cryptorchidism, and evaluation of karyotypes, localization, morphology and the major length of the undescended testes. MATERIAL/METHODS Fifty boys (1-4 years old) with unilateral cryptorchidism were evaluated. Fifty healthy boys withi...

Six species of Acanthobothrium, 4 described as new, are reported in stingrays from southern Ecuador. Acanthobothrium atahualpai n. sp. in Gymnura afuerae most closely resembles Acanthobothrium fogeli and Acanthobothrium parviuncinatum by having bothridial hooks with recurved prongs and short handles. It differs from A. fogeli by having bothridial hooks 163-195 microns vs. 78-114 microns long an...

PURPOSE We prospectively evaluated the surgical outcomes of single scrotal incision orchiopexy in children with a palpable undescended testis compared with the traditional two incision orchiopexy. MATERIALS AND METHODS A total of 398 orchiopexies (292 children) were included and randomly assigned to the single scrotal incision orchiopexy group (Group I, 147 children, 201 testes) or the tradit...

Testis torsion in pediatric patients is a surgical emergency that requires immediate operative intervention. Heterogeneity, which has been associated with testis loss, is only grossly detected on grayscale ultrasound. To quantify the extent of heterogeneity associated with torsion, we employed a unique, noninvasive technique to determine Dynamic Range (DR) in ultrasound images, and then compare...

Background. Abdominoscrotal sonogram is often used in boys with a nonpalpable testis to determine the presence of the testis. We describe our experience with the use of ultrasonography in boys with a nonpalpable testis. Methods. We retrospectively reviewed the medical records of boys aged less than 14 years, who underwent preoperative ultrasonography for an impalpable undescended testis (IUDT) ...

Semen production is an important parameter to A.I. studs in the pig industry. This parameter can only be evaluated once the boar has entered quarantine and semen has been collected. Therefore, a protocol to score the testes size of the boars subjectively was developed. We evaluated these subjective scores of testes size as a predictor of semen production and its correlations to female reproduct...

Cryptorchidism: When the testes do not descend, the condition is called ‘cryptorchidism’. The condition occurs in about 3% of full-term infants and about 30% of premature infants. Untreated cryptorchidism on both sides results in sterility because the cells involved in the initial development of sperm are destroyed by the higher temperature of the pelvic cavity. The chance of testicular cancer ...

OBJECTIVE To clarify the role of peritoneography in assessing the patency of processus vaginalis (PV) in pediatric patients diagnosed with cryptorchidism. MATERIALS AND METHODS We designed a prospective clinical trial to evaluate the patency of PV in boys presenting cryptorchidism. Herniography was performed in 310 prepubertal boys. Data about the morphology of PV was compared with operative ...