Abstract:
PURPOSE:Although the precise pathogenesis of ventral body wall (VBW) defects is not clearly understood, it has recently postulated that disruption of somite development during early embryogenesis may cause failure of proper VBW formation. The administration of cadmium (Cd) after 60 h of incubation induces omphalocele spectrum in the chick embryo. Previous studies have shown that one of the earliest histological changes seen in this model is abnormal cell death in the somite, occurring at 4 h post treatment (4H). However, the molecular mechanism by which Cd acts in this critical period of embryogenesis still remains unclear. Presenilins are expressed in somites and play an important role in vertebrate development, including somitogenesis and thus VBW formation. We designed this study to test the hypothesis that gene expression levels of presenilin 1 (PSEN1) and presenilin 2 (PSEN2) are downregulated during the critical period of early embryogenesis in the Cd-induced omphalocele in the chick model. METHODS:After 60 h of incubation, chick embryos were exposed to either saline or 50 μM cadmium and divided into two groups: control and Cd (n = 8 at each time point for each group). Real-time RT-PCR was performed to evaluate the relative mRNA expression levels of PSEN1 and PSEN2 in the Cd-induced omphalocele chick model. Differences between two groups at each time point were analysed statistically and the significance was accepted at p < 0.05. Immunofluorescence confocal microscopy was performed to evaluate the protein expression/distribution of presenilins in the somite of chick embryo. RESULTS:The relative mRNA expression levels of PSEN1 and PSEN2 were significantly downregulated in the Cd group at 4H compared with controls (p < 0.005) (Table). However, there were no significant differences at the other time points. At 4H, immunofluorescence of presenilins (green) was markedly diminished in the Cd-treated embryos, whereas strong immunofluorescence of them was seen in the somite (dermomyotome) in controls (Fig. 1). 1 Immunofluorescence Confocal Microscopy for PSEN1 and PSEN2 in the dermomyotome of the somite in the trunk level of chick embryo 4H post treatment. Intensity of PSEN1 immunofluorescence (green) was markedly diminished in Cd-treated embryos, whereas strong PSEN1 expression was seen in the dermomyotome in controls. PSEN2 immunofluorescence was also decreased in the Cd-treated embryos, whereas strong PSEN2 immunofluorescence (green) was observed predominantly in the dermomyotome in controls. Immunofluorescence in orange is DNA counter staining by DAPI CONCLUSION: We provide evidence, for the first time, that gene expression of presenilins is downregulated during the narrow window of very early embryogenesis in the Cd chick model. Decreased expression of presenilins may contribute to omphalocele phenotype in Cd chick model, by disrupting somite development.
journal_name
Pediatr Surg Intjournal_title
Pediatric surgery internationalauthors
Doi T,Fujiwara N,Puri P,Bannigan J,Thompson Jdoi
10.1007/s00383-011-2994-1subject
Has Abstractpub_date
2012-02-01 00:00:00pages
129-33issue
2eissn
0179-0358issn
1437-9813journal_volume
28pub_type
杂志文章abstract::Pullthrough procedures for Hirschsprung diseases typically have favorable results. However, some children experience long-term postoperative complications comprising stooling disorders, such as intermittent enterocolitis, severe stool retention, intestinal obstruction, as well as incontinence. Reoperative Hirschsprung...
journal_title:Pediatric surgery international
pub_type: 杂志文章,评审
doi:10.1007/s00383-016-4045-4
更新日期:2017-04-01 00:00:00
abstract::Colostomy shift en masse is a novel technique in which the colostomy is shifted along with a rim of skin and abdominal wall tissue. This provides additional length of distal bowel if needed during pull-through anastomosis. We have treated three cases (two Hirschsprung's disease and one anorectal malformation) with col...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-003-1043-0
更新日期:2003-11-01 00:00:00
abstract:PURPOSE:Pediatric genitalia injury represents 0.6% of all pediatric trauma. It is crucial for providers to understand whether pediatric patients are at risk for violent mechanisms, such as rape, assault, or other abuse. Therefore, we sought to perform a large database analysis of pediatric and adolescent female genital...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-020-04736-7
更新日期:2020-10-01 00:00:00
abstract:UNLABELLED:Vascular trauma is uncommon in children but may be complex. Arterial injury in children presents a challenge to the surgeon and may have long-term implications. Children have major advantage of a rich-collateral circulation but are still growing and developing. Decisions about when to operate remain an issue...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-011-3033-y
更新日期:2012-04-01 00:00:00
abstract:PURPOSE:Lgr5+ intestinal epithelial stem cells (ISCs) crucial for intestinal epithelial regeneration are impaired during necrotizing enterocolitis. This study aims to investigate the influence of different stressors on intestinal epithelial injury and regeneration in vitro. METHODS:Intestinal epithelial cells (IEC-18)...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-017-4183-3
更新日期:2018-02-01 00:00:00
abstract::Nine babies with pure oesophageal atresia were treated in our institution in the years 1979-1996. All received a feeding gastrostomy as their initial operation. After initiation of gastrostomy feeds seven (78%) developed gastric complications, including two posterior gastric perforations (one fatal). We propose that t...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s003830050640
更新日期:1999-01-01 00:00:00
abstract::Our purpose was to clarify factors that influence the level of depression of Japanese children with anorectal malformations (ARM). The subjects comprised 66 children with ARM, aged 0-16 years, and their mothers. Patients were divided into three groups (Group 1: aged 0-5 years, Group 2: 6-11 years, and Group 3: 12-16 y...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-007-2077-5
更新日期:2008-03-01 00:00:00
abstract::The transverse colon is an exceptional location of intestinal duplication. Perforated duplications are rarely described in neonates. Meconium peritonitis (MP) can originate from prenatal perforated intestinal duplication. The authors report a case of a baby girl with prenatal diagnosis of MP. Rapid worsening of clinic...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-004-1349-6
更新日期:2005-02-01 00:00:00
abstract::The goal of this article is to review the status of cultured epithelial autografts in clinical practice with particular focus on the pediatric subset of patients. The current indications include massive deep burns (>60 - 70% total body surface area), resurfacing-type postburn scar revisions, and skin defect coverage f...
journal_title:Pediatric surgery international
pub_type: 杂志文章,评审
doi:10.1007/BF01258705
更新日期:1997-09-01 00:00:00
abstract::Hirschsprung's disease (HD) in Down's syndrome (DS) patients is stated to have a worse outcome than HD alone. In our study we reviewed the immediate and long-term outcomes of these children and questioned whether DS should influence the operative management. Data were collected on all children with HD (including total...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-005-1617-0
更新日期:2006-02-01 00:00:00
abstract:PURPOSE:Rats are common intruders into human settlements. Apart from their role as disease vectors, they can also cause bite injuries. We describe the clinical course of a series of children with rat bites, and characterise the injures. METHODS:A retrospective review of hospital records of children admitted for rat bi...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-020-04799-6
更新日期:2021-01-21 00:00:00
abstract:PURPOSE:We have retrospectively evaluated all patients who underwent endoscopic puncture (EP) of ureterocele over the last 26 years with special reference to the need in the second intervention and disease-free status. METHODS:78 (69%) of the 112 patients following EP and completed follow-up were included. 51 (65%) we...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-018-4258-9
更新日期:2018-05-01 00:00:00
abstract::Fertility in patients treated for unilateral testicular torsion has been shown to be significantly reduced in all the reported series to date, implying that the present-day treatment requires further refinement in the form of adjunct pharmacotherapeutic intervention (Lomodex and MgSO(4)) in addition to scrotal explora...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-004-1317-1
更新日期:2005-03-01 00:00:00
abstract:INTRODUCTION:Management of oesophageal atresia (OA) and trachea-oesophageal fistula (TOF) in babies of low birth weight is challenging especially when associated with other anomalies. Birth weight of <1500 g has previously formed part of a classification system designed to predict outcome, alongside the cardiac status ...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-015-3851-4
更新日期:2016-06-01 00:00:00
abstract::Minimally invasive surgery (MIS) for cancer patients has become widely accepted in general surgery, however, it has not completely replaced the standard open operative procedures in pediatric oncology. The aim of this study was to evaluate the host relationship following MIS in a murine model of retroperitoneal neurob...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s003830050271
更新日期:1998-03-01 00:00:00
abstract::We present three cases of abdominal and abdomino-thoracic extra-lobar pulmonary sequestrations detected by antenatal ultrasound (US) over a 12-month period. In addition, we briefly refer to a case previously described. A cystic mass was demonstrated in the left upper abdomen of the fetus in all four cases, with two ex...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/BF00183739
更新日期:1996-03-01 00:00:00
abstract:PURPOSE:With the widespread use of the obstetrical ultrasound, identification of a fetal suprarenal mass has become more common. Most of these masses prove to be congenital neuroblastomas (CNB), but the diagnosis is often confused with other benign lesions and the postnatal management remains to be controversial. METH...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-009-2531-7
更新日期:2010-03-01 00:00:00
abstract:PURPOSE:Adhesive small bowel obstruction (ASBO) is one of the most important cause of postoperative morbidity in children who underwent abdominal surgery. Laparoscopic management for ASBO in pediatric patients has been reported. However, its safety and efficacy has not been evaluated in details. The aim of this study i...
journal_title:Pediatric surgery international
pub_type: 杂志文章,meta分析,评审
doi:10.1007/s00383-017-4186-0
更新日期:2018-02-01 00:00:00
abstract::Evolution of the present-day policy of conservative management of ruptured spleen has been hailed as one of the most notable advances in pediatric surgery. Until 1971, routine splenectomy used to be the sacrosanct treatment for splenic trauma. It was universally believed that non-operative management carried a high mo...
journal_title:Pediatric surgery international
pub_type: 历史文章,杂志文章,评审
doi:10.1007/s00383-003-0972-y
更新日期:2003-11-01 00:00:00
abstract::Pharyngeal perforations are uncommon in children and are usually secondary to instrumentation or external penetrating injuries. A delay in management can lead to life-threatening complications such as retropharyngeal abscess, mediastinitis, and airway compromise. We report three children who had pharyngeal perforation...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-005-1447-0
更新日期:2005-06-01 00:00:00
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journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-010-2843-7
更新日期:2011-06-01 00:00:00
abstract:PURPOSE:To study the effects of frenulotomy on nipple pain, latch and the success in exclusive breastfeeding (EBF) at 3-month follow-up. METHODS:A prospective cross-sectional study of 328 mother-infant pairs with both tongue-tie and breastfeeding problems was performed. Nipple pain and latch were evaluated using numer...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-016-3952-8
更新日期:2016-10-01 00:00:00
abstract:PURPOSE:The aim of this study was to determine if there is a difference between complications for totally implantable central venous catheters (ports) and tunnelled external central venous catheters (external CVCs) that result in early removal of the central venous catheter (CVC) in children and adolescents with acute ...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-012-3213-4
更新日期:2012-12-01 00:00:00
abstract::This article describes five cases of congenital epulis, a rare and benign swelling in the mouth of a newborn, which is not widely known. We present five cases: four cases presented as single pedunculated nodules of the gingiva and in one case two nodules were present. Of all, 50% were located at the maxilla. Excision ...
journal_title:Pediatric surgery international
pub_type: 杂志文章,评审
doi:10.1007/s00383-008-2304-8
更新日期:2009-02-01 00:00:00
abstract::We describe the case of a 4-year-old boy with a unilateral right-sided Wilms tumor with stromal predominance and teratoid features, which was localized to the kidney and hence, was completely resected. The pediatric surgeon and pathologist, both should be aware of this rare appearance of nephroblastoma so as to avoid ...
journal_title:Pediatric surgery international
pub_type: 杂志文章,评审
doi:10.1007/s00383-009-2333-y
更新日期:2009-03-01 00:00:00
abstract::Reflux nephropathy (RN) is recognized as a major cause of end-stage renal failure in children and young adults. Inhibition of nitric oxide (NO) exacerbates and enhanced production ameliorates tubulointerstitial fibrosis (TIF) in experimental obstructive uropathy. NO is synthesised by NO synthase (NOS), three distinct ...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-002-0858-4
更新日期:2002-10-01 00:00:00
abstract::Primary lymphedema of the penis (PLP) is a rare disease. We report a case in a 2-year-old, uncircumcised boy where the uninvolved inner preputial skin was unfurled to cover the penile shaft. The uninvolved inner preputial skin is often elongated, and provides a suture-free cover of sufficient length for the small peni...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s003830000487
更新日期:2001-03-01 00:00:00
abstract:AIM:In chick embryos, administration of cadmium (Cd) induces ventral body wall defects (VBWD) similar to human omphalocele. It has been shown that failure of proper VBW formation may be due to disruption of somite development during early embryogenesis. In the VBWD chick model, Cd causes abnormal cell death in the somi...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-012-3202-7
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:Children with intussusception require rapid and accurate diagnosis to enable timely intervention for satisfactory outcome. Ultrasonography is the recommended standard diagnostic modality; however, abdominal radiography (AR) is still used as an initial investigation. The aim of this study was to investigate t...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-015-3817-6
更新日期:2016-01-01 00:00:00
abstract::Meckel's diverticulum has previously been reported to be present in patients with Crohn's disease. However, the finding is typically an incidental one, and involvement of the diverticulum in the disease process is uncommon. We report a case of an adolescent with known Crohn's disease who presented with symptoms though...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-007-1971-1
更新日期:2008-03-01 00:00:00