Abstract:
:PURPOSE: Despite extensive research, the molecular basis of hypospadias and anorectal malformations is poorly understood, likely due to a multifactorial basis. The incidence of hypospadias is increasing, thus making research in this area warranted and timely. This review presents recent molecular work broadening our understanding of these disorders. MATERIALS AND METHODS: A brief review of our recent work and the literature on the role of Eph/ephrin signaling in hypospadias and anorectal malformations is presented. RESULTS: Genetically engineered mice mutant for ephrin-B2 or EphB2;EphB3 manifest a variety of genitourinary and anorectal malformations. Approximately 40% of adult male heterozygous mice demonstrate perineal hypospadias. Although homozygous mice die soon after birth, 100% of homozygous males demonstrate high imperforate anus with urethral anomalies and 100% of homozygous females demonstrate persistent cloaca. Male mice compound homozygous for EphB2(ki/ki);EphB3(Delta/Delta)/ also demonstrate hypospadias. CONCLUSIONS: These mouse models provide compelling evidence of the role of B-class Eph/ephrin signaling in genitourinary/anorectal development and add to our mechanistic and molecular understanding of normal and abnormal embryonic development. As research on the B-class Ephs and ephrins continues, they will likely be shown to be molecular contributors to the multifactorial basis of hypospadias and anorectal malformations in humans as well.
journal_name
J Pediatr Uroljournal_title
Journal of pediatric urologyauthors
Yucel S,Dravis C,Garcia N,Henkemeyer M,Baker LAdoi
10.1016/j.jpurol.2007.01.199subject
Has Abstractpub_date
2007-10-01 00:00:00pages
354-363issue
5eissn
1477-5131issn
1873-4898pii
S1477-5131(07)00223-9journal_volume
3pub_type
杂志文章abstract:INTRODUCTION:Orchiopexy for a palpable undescended testis can be approached through a traditional inguinal incision or trans-scrotally. Despite the possible advantages of the scrotal approach, including reduced postoperative pain and shorter recovery, it is not consistently advocated. OBJECTIVE:The objective of this s...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2018.08.022
更新日期:2019-02-01 00:00:00
abstract:INTRODUCTION:Childhood enuresis is common, but the prevalence and factors associated with childhood enuresis in Africa have been poorly described. Furthermore, most studies from the continent have not provided data distinguishing monosymptomatic from non-monosymptomatic enuresis. This distinction is important as it gui...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2015.06.009
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVE:Outcome of urethral mobilization and advancement (Koff procedure) in hypospadias with a distal division of the corpus spongiosum and redo cases with distal urethral failure. MATERIALS AND METHODS:From January 1999 to November 2012, 158 children with a distal hypospadias (115 primary cases and 43 redo cases) ...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2013.10.019
更新日期:2014-06-01 00:00:00
abstract:OBJECTIVE:Seven percent of patent processus vaginalis (PPVs) are obliterated at exploration. This potentially increases the risk of cord injury with a subsequent increased risk of testicular atrophy or reduced fertility. We report a modification of a technique to improve identification of the PPV and thus potentially m...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2007.08.008
更新日期:2008-06-01 00:00:00
abstract::Laparoendoscopic single-site surgery (LESS), a minimally invasive procedure, is gaining widespread acknowledgment in pediatric urology. We report the case of a 7-year-old girl with Turner's syndrome with 45,XO/46,XY mosaicism, for whom bilateral prophylactic gonadectomy using LESS was performed. Histopathological find...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2012.02.010
更新日期:2012-08-01 00:00:00
abstract:OBJECTIVE:To standardize the history and physical examination of boys who present with acute scrotum and identify parameters that best predict testicular torsion. MATERIALS AND METHODS:Over a 5-month period, a standardized history and physical examination form with 22 items was used for all boys presenting with scrota...
journal_title:Journal of pediatric urology
pub_type: 临床试验,杂志文章
doi:10.1016/j.jpurol.2010.12.010
更新日期:2011-08-01 00:00:00
abstract:BACKGROUND:The ICCS defines OAB by the subjective symptom of urgency; detrusor overactivity (DO) is only implied. While no other symptom is required, OAB can also be associated with urinary frequency, decreased functional bladder capacity, and incontinence. OBJECTIVE:We sought to determine how often these associated f...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2017.02.010
更新日期:2017-06-01 00:00:00
abstract:INTRODUCTION:Cloacal exstrophy (CE) is the most severe manifestation of the epispadias-exstrophy spectrum. Previous studies have indicated an increased rate of renal anomalies in children with classic bladder exstrophy (CBE). Given the increased severity of the CE defect, it was hypothesized that there would be an even...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2016.04.008
更新日期:2016-08-01 00:00:00
abstract:INTRODUCTION:Ureteropelvic junction obstruction (UPJO) is one of the most frequent urological diseases affecting the pediatric population. It can be due to both intrinsic stenosis of the junction and extrinsic causes such as the presence of crossing vessels (CVs), which can be detected by color Doppler ultrasound (CD-U...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2017.09.019
更新日期:2018-02-01 00:00:00
abstract:BACKGROUND:Urethral stricture presents an uncommon but difficult urological problem in the pediatric population. Treatment protocols are different from in adults due to anatomical considerations. MATERIAL AND METHODS:A thorough manual and Medline search was conducted to review the existing literature on post-traumatic...
journal_title:Journal of pediatric urology
pub_type: 杂志文章,评审
doi:10.1016/j.jpurol.2011.06.004
更新日期:2012-06-01 00:00:00
abstract:OBJECTIVE:Faecal incontinence secondary to myelomeningocele, Hirschsprung disease, and anorectal anomalies remains a significant and common problem. We aimed to report our 5-year experience with the Peristeen trans-anal irrigation system (TAIS) to manage such children. PATIENTS AND METHOD:This study was a combination ...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2013.08.006
更新日期:2014-04-01 00:00:00
abstract::The Mitrofanoff procedure, first described in 1980, has been widely adopted for pediatric continent urinary diversion to increase patient independence and continence, decrease morbidity and infections, and preserve renal function. Although this principle employs the appendix primarily, numerous other tissue conduits h...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2005.02.001
更新日期:2005-10-01 00:00:00
abstract:BACKGROUND:The epidemiology and risk factors for paediatric urolithiasis (UL) in developed countries are evolving, with increasing rates of metabolic stone-formers. In the United Kingdom (UK), only a single London cohort has been studied in the past three decades. Regional disease patterns across the UK remain unknown....
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2020.03.009
更新日期:2020-06-01 00:00:00
abstract:INTRODUCTION:Urotherapy is considered the treatment of choice for children suffering daytime urinary incontinence (DUI). Urotherapy intends to improve bladder dysfunction for children with DUI. For children with refractory DUI, an intensive inpatient bladder training program exists, which focuses on relearning, concent...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2018.09.003
更新日期:2019-02-01 00:00:00
abstract:BACKGROUND:Prompt diagnosis and treatment of paediatric urolithiasis are required to avoid long term sequelae of renal damage. OBJECTIVE:To systematically review the literature regarding the diagnostic imaging modalities and treatment approaches for paediatric urolithiasis. STUDY DESIGN:PubMed, Science Direct, Scopus...
journal_title:Journal of pediatric urology
pub_type: 杂志文章,评审
doi:10.1016/j.jpurol.2020.07.003
更新日期:2020-10-01 00:00:00
abstract:INTRODUCTION:Videourodynamics is the key follow-up examination of children with myelomeningocele. However, it has been performed in specific institutions focused on the urological management of children due to the difficulty in its interpretation. Although a neurogenic bladder frequently appears elongated vertically an...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2020.09.015
更新日期:2020-12-01 00:00:00
abstract:INTRODUCTION:Patients with gonadal dysgenesis (GD) with a Y chromosome have an increased risk of gonadal neoplasm. Few data exist on the ability of imaging to detect malignancy in intra-abdominal gonads in these patients. OBJECTIVE:We aimed to determine the correlation between preoperative imaging findings and gonadal...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2017.11.009
更新日期:2018-04-01 00:00:00
abstract:OBJECTIVE:Children with valve bladder syndrome represent the worst end of the posterior urethral valve spectrum. When conservative measures fail to control recurrent infections, prevent deterioration of the upper tract (in the form of increasing hydronephrosis and or worsening of kidney function) and improve incontinen...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2007.06.005
更新日期:2007-12-01 00:00:00
abstract:INTRODUCTION:Primary nocturnal enuresis is one of the sleep related phenomena characterized by disruption in the relationship between arousal and urination. Corticotropin-releasing factor (CRF) is a neurohormone released from the paraventricular nucleus of the hypothalamus into the median eminence to elicit release of ...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2016.08.030
更新日期:2017-02-01 00:00:00
abstract::Uro-enteric fistulae are difficult clinical conditions that have a significant bearing on the patient's quality of life. Surgical correction, though challenging, is the usual mode of treatment offered to these patients. We describe a case of urethro-ileal pouch fistula which could be managed successfully without surge...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2011.06.007
更新日期:2012-02-01 00:00:00
abstract:INTRODUCTION:Testicular microlithiasis (TM) is a condition characterized by calcium deposits within the testis, usually detected incidentally during ultrasonography of the scrotum. TM has been associated with the presence of, and possibly the development of, testicular malignancy. Our aim was to document international ...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2017.12.007
更新日期:2018-04-01 00:00:00
abstract:INTRODUCTION AND OBJECTIVE:Inguinal hernias and communicating hydroceles from a patent processus vaginalis (PPV) are common problems in children. This study provides a detailed description of the laparoscopic intra-abdominal patent processus vaginalis ligation (LIPPL) procedure along with its results in pediatric urolo...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2017.03.026
更新日期:2017-10-01 00:00:00
abstract:BACKGROUND:There are many variables affecting the success of treatment in children with primary monosymptomatic nocturnal enuresis (PMNE). This study investigates the possible effect of cigarette smoke exposure on desmopressin treatment response in children with PMNE. METHOD:The medical records of pediatric patients w...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2019.10.012
更新日期:2020-02-01 00:00:00
abstract:BACKGROUND:Anterior urethral valves (AUV) and associated anterior urethral diverticula (AUD) are a rare cause of congenital lower urinary tract obstruction. They occur 25-30 times less frequently than posterior urethral valves (PUV) and historically tend to have a less aggressive presentation and outcome. However, due ...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2020.03.024
更新日期:2020-10-01 00:00:00
abstract:INTRODUCTION:Long-term continence outcomes for patients with bladder exstrophy are lacking in the literature. The complete primary repair of exstrophy (CPRE) is a widely adopted approach that seeks to normalize anatomy at the initial repair, thereby allowing early bladder filling and cycling. Previous reports of contin...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2016.04.005
更新日期:2016-08-01 00:00:00
abstract:INTRODUCTION:A urogenital sinus (US) and an anorectal malformation (ARM) are a rare constellation of anomalies, and the optimal surgical approach is unclear. Open and laparoscopic approaches have been described for US and ARM, but no data exist to support robotic assistance in children. CASE:A 20-month-old Amish femal...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2019.08.001
更新日期:2019-10-01 00:00:00
abstract:OBJECTIVE:Bladder spasms are a common cause of pain after surgical procedures that call for postoperative catheter drainage. Several therapeutic methods have been used to lessen these spasms but none have received widespread success. PATIENTS AND METHODS:Twenty-six children were included in a prospective randomized tr...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2006.11.003
更新日期:2007-08-01 00:00:00
abstract:OBJECTIVE:To investigate preoperative urinary flow patterns in hypospadic infants and compare them to those from normal infant boys. PATIENTS AND METHODS:Twenty-one boys (median age 14.0, range 12.8-21.6 months) referred for distal hypospadias surgery were compared to 19 healthy boys (median age 12.0, 9.2-19.8 months)...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2010.05.013
更新日期:2011-08-01 00:00:00
abstract:BACKGROUND:Children with daytime urinary incontinence secondary to idiopathic overactive bladder (IOAB) commonly present to paediatric urologists following failure of standard urotherapy and/or 1st-line anticholinergics. Off-label oral medications and intravesical botulinum toxin A (BtA) are being increasingly used for...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2019.10.013
更新日期:2020-02-01 00:00:00
abstract:INTRODUCTION:Upper tract damage (UTD) is a life-threatening complication of neurogenic bladder (NB). Early identification of risk factors for UTD and institution of remedial measures may probably prevent UTD. The aim was to study the predictors of UTD in children 2 years or older with NB. METHOD:This cross-sectional, ...
journal_title:Journal of pediatric urology
pub_type: 杂志文章
doi:10.1016/j.jpurol.2017.02.026
更新日期:2017-10-01 00:00:00